hiero.core reference

hiero.core method and class details

class hiero.core.Annotation

Class for objects that can hold multiple stroke and/or text elements to provide annotation functionality. Annotation is derived from SubTrackItem and thus Annotation objects can be placed and trimmed on VideoTrack subtracks. Strokes and/or text can be added to an annotation by creating AnnotationStroke and/or AnnotationText objects and using addElement().

addElement() → Adds the specified AnnotationElement, which should be an instance of an AnnotationElement sub-class, i.e. either

an AnnotationStroke or an AnnotationText object.

Returns:

If there was no error, returns the added element.

addToNukeScript(script, offset=0, inputs=0, cliptype=None)

deserialize() → restore the annotation from XML data

elements() → returns a tuple with all of the elements contained in this annotation.

Returns:

tuple of hiero.core.Element sub-class objects

serialize() → serialize the annotation object to XML

toString() → returns a description of the object. Equivalent to str(object).

Returns:

string

class hiero.core.AnnotationElement

Base class for types of elements that may be added to an Annotation. This class shold not be used directly and AnnotationElement objects should not be created.

color() → returns a tuple containing the color for this annotation element in the form (red, green, blue, alpha),

with the components represented as floating point values in the range [0, 1].

Returns:

tuple of (red, green, blue, alpha)

isNull()

setColor() → None

Sets the color and alpha of the element. Each component must be a floating point value in the range [0, 1].

Parameters:

• red – The new red component.

• green – The new green component.

• blue – The new blue component.

• alpha – The new alpha component.

toString() → string

Returns a description of the object. Equivalent to str(object).

Returns:

A string describing the object.

class hiero.core.AnnotationStroke

A class, derived from AnnotationElement, storing a set of 2d points to represent a single stroke within an annotation.

isNull()

lineWidth()

points()

self.points -> Returns a variable tuple containing the 2d points forming the stroke. Each point is represented as a 2 component tuple, with the x and y components of the point as floating point values.

Returns:

tuple of 2 component tuples, each of the form (x, y)

setLineWidth()

setPoints()

self.setPoints -> Sets the points that make up this stroke, replacing any points the stroke already had. The points must be specified as a list (not tuple) of 2d points, each point being a 2 component tuple of floats or integers, e.g. [(100, 200), (123.456, 300)].

toString() → returns a description of the object. Equivalent to str(object).

Returns:

string

class hiero.core.AnnotationText

A class, derived from AnnotationElement, storing a single item of text within an annotation.

class HorizontalJustification

eHCenter = core.Hiero.Python.AnnotationText.HorizontalJustification.eHCenter

eHJustify = core.Hiero.Python.AnnotationText.HorizontalJustification.eHJustify

eHLeft = core.Hiero.Python.AnnotationText.HorizontalJustification.eHLeft

eHRight = core.Hiero.Python.AnnotationText.HorizontalJustification.eHRight

name

values = {'eHCenter': core.Hiero.Python.AnnotationText.HorizontalJustification.eHCenter, 'eHJustify': core.Hiero.Python.AnnotationText.HorizontalJustification.eHJustify, 'eHLeft': core.Hiero.Python.AnnotationText.HorizontalJustification.eHLeft, 'eHRight': core.Hiero.Python.AnnotationText.HorizontalJustification.eHRight}

class VerticalJustification

eVBaseline = core.Hiero.Python.AnnotationText.VerticalJustification.eVBaseline

eVBottom = core.Hiero.Python.AnnotationText.VerticalJustification.eVBottom

eVCenter = core.Hiero.Python.AnnotationText.VerticalJustification.eVCenter

eVTop = core.Hiero.Python.AnnotationText.VerticalJustification.eVTop

name

values = {'eVBaseline': core.Hiero.Python.AnnotationText.VerticalJustification.eVBaseline, 'eVBottom': core.Hiero.Python.AnnotationText.VerticalJustification.eVBottom, 'eVCenter': core.Hiero.Python.AnnotationText.VerticalJustification.eVCenter, 'eVTop': core.Hiero.Python.AnnotationText.VerticalJustification.eVTop}

box()

self.box -> Returns a tuple containing the position and size of the text box, as floating point values.

The position is that of the box’s lower left corner.

Returns:

The text box position and size in the form (x, y, width, height)

eHCenter = core.Hiero.Python.AnnotationText.HorizontalJustification.eHCenter

eHJustify = core.Hiero.Python.AnnotationText.HorizontalJustification.eHJustify

eHLeft = core.Hiero.Python.AnnotationText.HorizontalJustification.eHLeft

eHRight = core.Hiero.Python.AnnotationText.HorizontalJustification.eHRight

eVBaseline = core.Hiero.Python.AnnotationText.VerticalJustification.eVBaseline

eVBottom = core.Hiero.Python.AnnotationText.VerticalJustification.eVBottom

eVCenter = core.Hiero.Python.AnnotationText.VerticalJustification.eVCenter

eVTop = core.Hiero.Python.AnnotationText.VerticalJustification.eVTop

fontPath() → string

Returns the current font path for this annotation text object.

Returns:

A string containing the current font path.

fontSize()

horizontalJustification()

Returns the horizontal justification of the text.

Returns:

One of eHLeft, eHCenter, eHRight, eHJustify.

isNull()

rotation()

self.rotation -> float

Returns the rotation angle of the text, as a floating point value in degrees.

Returns:

The text’s rotation angle.

setBox(x, y, width, height) → None

Sets the text box for this annotation text object. The text box determines the position and layout of the text (the layout also being affected by the alignment). The size of the text box does not affect the size of the glyphs that make up the text, that’s determined by the font size - see setFontSize() and fontSize().

Parameters:

• x – The new x-component of the bottom left corner of the text box, before any rotation.

• y – The new y-component of the bottom left corner of the text box, before any rotation.

• width – The new width of the text box.

• height – The new height of the text box.

setFontPath() → None

Sets the path to the file from which to load the font for use with this annotation text object.

setFontSize()

setHorizontalJustification()

self.setHorizontalJustification -> None

Set the horizontal justification of the text.

Parameters:

justify – One of eHLeft, eHCenter, eHRight, eHJustify.

setRotation()

self.setRotation -> None

Sets the rotation angle of the text, with a floating point value, replacing the previous angle.

Parameters:

rotation – The new rotation angle, in degrees.

setText() → None

Sets the text for this annotation text object.

Parameters:

text – The new text string.

setVerticalJustification()

self.setVerticalJustification -> None

Set the vertical justificaiton of the text.

Parameters:

justify – One of eVBaseline, eVTop, eVCenter, eVBottom.

text() → string

Returns:

A string containing the current text for this annotation text object.

toString() → returns a description of the object. Equivalent to str(object).

Returns:

string

verticalJustification()

Returns the vertical justification of the text.

Returns:

One of eVBaseline, eVTop, eVCenter, eVBottom.

class hiero.core.ApplicationSettings

Helper object to set and get application settings.

boolValue(key, defaultValue) → returns the previously stored value as True or False, named by the key parameter, or the defaultValue parameter

boolValue(key) → returns the previously stored value as True or False, named by the key parameter, or the default value as configured (if configured) by the Hiero code. Use this method if you're looking up a value used by Hiero internally.

Note: use self.value(key, defaultValue) if you just want to retrieve a string setting

Parameters:

• key – string name of the value to retrieve

• defaultValue – the value to return if this setting hasn’t been saved before. Does not save the value to the default.

Returns:

string

setBoolValue(key, value) → saves the value as True or False with the application's settings using the key

Parameters:

• key – string name of the value to retrieve

• value – the bool (True or False) value to save.

setValue(key, value) → saves the value with the application's settings using the key

Parameters:

• key – string name of the value to save

• value – the value to store

value(key, defaultValue=None) → returns the previously stored string value named by the key parameter, or the defaultValue parameter

Parameters:

• key – string name of the value to retrieve

• defaultValue – the value to return if this setting hasn’t been saved before. Does not save the value to the default

Returns:

string, unless the defaultValue is set, in which case, the return value will be the same type as the defaultValue (string, int or bool)

class hiero.core.AudioTrack

Object for manipulating audio tracks.

addTag(tag) → adds a tag to the audio track item.

Parameters:

tag – the hiero.core.Tag to add to the audio track

Returns:

hiero.core.Tag object

addTrackItem(clip, audioChannel, position) → if the first parameter is a Clip object, the second and third parameters must be specified and this method creates a new track item with the specified audio channel and adds it to this audio track at the given position.

If the first parameter is a TrackItem, then this method just adds the track item specified. This method will cut or delete track items that overlap with the one being added. This method can only be called if the track has already been added to a Sequence.

Parameters:

• clip – a hiero.core.Clip object or a hiero.core.TrackItem object, to add to this audio track.

• audioChannel – int; audio channel that will be associated with the track item. Do not specify if clip is a TrackItem.

• position – int; insert position. Do not specify if clip is a TrackItem.

Returns:

hiero.core.TrackItem object

clone() → returns a deep copy of this object.

Returns:

hiero.core.AudioTrack object

WARNING - DEPRECATED ( clone ): This method is deprecated and will not be present in future versions of the Python API. This method has been replaced by copy().

copy() → returns a deep copy of this object.

Returns:

hiero.core.AudioTrack object

createTrackItem(name) → creates a new track item.

Parameters:

name – the name of the new track item

Returns:

hiero.core.TrackItem object

items() → returns a tuple with all of the track items contained by this track.

Returns:

tuple of hiero.core.TrackItem objects

parent() → returns the sequence that contains this track.

Returns:

hiero.core.Sequence object

removeTag(tag) → removes the tag from the audio track.

Parameters:

tag – hiero.core.Tag object

toString() → returns a description of the object. Equivalent to str(object).

Returns:

string

trackIndex()

class hiero.core.BackgroundRenderObserver

Observer of background renders.

isNull()

onFrameRenderCancelled()

onFrameRenderError()

onFrameRenderInProgress()

onFrameRenderQueued()

onFrameRendered()

onRenderQueued()

class hiero.core.Bin

Container object for hiero.core.BinItem objects (wrapping hiero.core.Clip and hiero.core.Sequence objects) and other hiero.core.Bin objects.

class ItemType

kBin = core.Hiero.Python.Bin.ItemType.kBin

kClip = core.Hiero.Python.Bin.ItemType.kClip

kNone = core.Hiero.Python.Bin.ItemType.kNone

kSequence = core.Hiero.Python.Bin.ItemType.kSequence

kTag = core.Hiero.Python.Bin.ItemType.kTag

name

values = {'kBin': core.Hiero.Python.Bin.ItemType.kBin, 'kClip': core.Hiero.Python.Bin.ItemType.kClip, 'kNone': core.Hiero.Python.Bin.ItemType.kNone, 'kSequence': core.Hiero.Python.Bin.ItemType.kSequence, 'kTag': core.Hiero.Python.Bin.ItemType.kTag}

addItem(object) → adds the item to the bin object.

Parameters:

object – hiero.core.Bin, hiero.core.BinItem, or hiero.core.Tag object, to be added as a sub item of the bin object

Returns:

Added object

bins() → returns a tuple with all of the sub bins contained by this object.

Returns:

tuple of hiero.core.Bin objects

clips() → returns a tuple with all of the BinItem's containing clips contained by this bin.

Returns:

tuple of hiero.core.BinItem objects

color() → Get the bin display color, or an invalid QColor if not set.

Returns:

PySide2.QtGui.QColor

createClip(path, **knobs) → Construct a clip from a path and optional knob values, and add it to the bin.

Parameters:

• path – path to use, may contain expressions

• knobs – keyword args for specifying additional knobs to set

Returns:

the created Clip

deserializeChildItem()

displayColor() → Returns the bin's color if one is set, otherwise returns the preference color associated with this bin.

Returns:

PySide2.QtGui.QColor

guid()

importFolder(path) → imports the media in the path into this bin (needs a project).

Parameters:

path – path to the media to import

Return Bin:

returns the bin created for imported media

importSequence(filename, timeBase=None, frameRate=None, dropFrame=False) → imports the sequence stored in filename into this bin (needs a project).  If the timebase/frame rate for the sequence isnot specified, the project defaults will be used.

Parameters:

• filename – path to the file to import the sequence from

• timeBase – optional argument of type hiero.core.TimeBase specifying the timebase for the created sequence

• frameRate – optional float argument specifying the frame rate for the created sequence

Returns:

hiero.core.Sequence the created sequence

isNull() → returns True if the object is invalid.

Returns:

True or False

items(typeFilter) → returns a tuple with all of the objects contained by this bin, filtered by the typeFilter argument, if supplied.

Parameters:

typeFilter – combination of hiero.core.Bin.ItemType flags

Returns:

tuple of hiero.core.BinItem objects

kBin = core.Hiero.Python.Bin.ItemType.kBin

kClip = core.Hiero.Python.Bin.ItemType.kClip

kNone = core.Hiero.Python.Bin.ItemType.kNone

kSequence = core.Hiero.Python.Bin.ItemType.kSequence

kTag = core.Hiero.Python.Bin.ItemType.kTag

moveItem()

name() → returns the name of the bin.

Returns:

True or False

numChildren() → returns the number of child objects contained by this bin.

Returns:

int

parentBin() → returns the bin that contains this object.

Returns:

hiero.core.Bin object

project() → returns the Project object that this is attached to, or None if the object is not attached to a project.

Returns:

hiero.core.Project object

reconnectMedia(path) → For any Clips or Sequences in the bin, reconnects media found in the specified path.

Parameters:

path – path containing media to reconnect to

removeItem(object) → removes the item from the bin object. If the object is not a child item of the bin object, throws an exception.

Parameters:

object – hiero.core.Bin, hiero.core.BinItem, or hiero.core.Tag object to be removed as a sub item of the bin object

sequences() → returns a tuple with all of the BinItem's containing sequences contained by this bin.

Returns:

tuple of hiero.core.BinItem objects

serialize()

setColor(color) → Set the bin display color.

Parameters:

color – the color to set, as a PySide2.QtGui.QColor, a string (e.g. ‘#ff0000’) or an integer containing the RGB components (e.g. 0x11aa33).

setName(name) → set the name of the bin.

syncName(name) → set the name of the bin without sending additional notifications.

toString() → returns a description of the object. Equivalent to str(object).

Returns:

string

class hiero.core.BinItem

Generic object wrapper with shared functionality for sequences and clips.

activeItem() → returns the item contained by this bin item.

Returns:

hiero.core.Clip or hiero.core.Sequence object

activeVersion() → gets the currently active Version object of the bin item.

Returns:

hiero.core.Version object

addSnapshot(comment) → adds a new snapshot for the object, with a comment.

addSnapshot(sequence, comment) → adds a new snapshot for the object, using the sequence as the new snapshot, setting the comment.

Parameters:

• comment – a comment string to set on the snapshot

• sequence – a hiero.core.Sequence object to create the Snapshot from

Returns:

hiero.core.Snapshot object

addVersion(version) → adds the version parameter to the bin item.

Parameters:

• version – hiero.core.Version object for the new version

• position – position at which the new Version must be inserted, if -1 then insert at end

Returns:

hiero.core.Version object

clone() → returns a deep copy of this object.

Returns:

hiero.core.BinItem object

WARNING - DEPRECATED ( clone ): This method is deprecated and will not be present in future versions of the Python API. This method has been replaced by copy().

color() → Get the bin item display color, or an invalid QColor if not set.

Returns:

PySide2.QtGui.QColor

copy() → returns a deep copy of this object.

Returns:

hiero.core.BinItem object

createClipVersion(position, path, **knobs) → Construct a clip from a path and optional knob values, and add it as a new version. Raises RuntimeError if creating the clip fails or the path already exists as a version.

Parameters:

• position – position at which the new Version must be inserted, if -1 then insert at end

• path – path to use, may contain expressions

• knobs – keyword args for specifying additional knobs to set

Returns:

the created Version

deserializeChildItem()

displayColor() → Returns the item's color if one is set, otherwise returns the preference color associated with this item type.

Returns:

PySide2.QtGui.QColor

guid()

hasVersion(index) → checks if a given version exists and is valid.

Parameters:

index – index of the version to check for

Returns:

True or False

isClipVersion(index) → checks if a given clip belongs to this BinItem as a version.

Parameters:

clip – Clip to look for

Returns:

True or False

isNull() → returns True if the object contains a invalid hiero.core.Sequence or hiero.core.Clip object.

Returns:

True or False

items() → returns a tuple containing all of the different versions of this object.

Returns:

tuple of hiero.core.Version objects

maxVersion() → finds the maximum (last) version and sets it as the active version on this bin item and any linked TrackItems. Offline versions and hidden versions will be ignored during the search.

Returns:

hiero.core.Version object

minVersion() → finds the minimum (first) version and sets it as the active version on this bin item and any linked TrackItems. Offline versions and hidden versions will be ignored during the search.

Returns:

hiero.core.Version object

name() → returns the name of the item.

Returns:

string

nextVersion() → finds the next version and sets it as the active version on this bin item and any linked TrackItems. Offline versions and hidden versions will be ignored during the search.

Returns:

hiero.core.Version object

numSnapshots() → returns the number of snapshots that this bin item has.

Returns:

int

numVersions() → returns the number of versions for this bin item.

Returns:

int

parentBin() → returns the bin object that contains this bin item.

Returns:

hiero.core.Bin object

prevVersion() → finds the previous version and sets it as the active version on this bin item and any linked TrackItems. Offline versions and hidden versions will be ignored during the search.

Returns:

hiero.core.Version object

project() → returns the Project object that this object is attached to, or None if the object is not attached to a project.

Returns:

heiro.core.Project object

removeVersion(version) → remove a version from the BinItem. The version must not currently be in use in the project.

Parameters:

version – hiero.core.Version object to be removed

restoreToSnapshot(index) → adds a new snapshot for the object, with a comment.

Parameters:

index – index of the Snapshot to restore from. Generates an exception if the index is out of range

serialize()

setActiveVersion(version) → sets the active version to the version parameter.

Returns:

hiero.core.Version object

setActiveVersionIndex(version) → sets the currently active version by index.

Parameters:

index – index of the version to make active

Returns:

hiero.core.Version object

WARNING - DEPRECATED ( setActiveVersionIndex ): This method is deprecated and will not be present in future versions of the Python API. Version indices are no longer unique identifiers and should not be used as such. Please use BinItem.setActiveVersion() instead.

setColor(color) → Set the bin item display color.

Parameters:

color – the color to set, as a PySide2.QtGui.QColor, a string (e.g. ‘#ff0000’) or an integer containing the RGB components (e.g. 0x11aa33).

setName(name) → set the name of the item.

snapshots() → returns a tuple of all of the snapshots contained by this object.

Returns:

tuple of hiero.core.Snapshot objects

syncName(name) → set the name of the item without sending additional notifications.

toString() → returns a description of the object. Equivalent to str(object).

Returns:

string

version(index) → gets a Version object for the version of the bin item specified by the index.

Parameters:

index – index of the version to get

Returns:

hiero.core.Version object

versionDown() → decrements the current/active version and returns the newly active Version object of the bin item.

Returns:

hiero.core.Version object

WARNING - DEPRECATED ( versionDown ): This method is deprecated and will not be present in future versions of the Python API. Only available versions can now be obtained from BinItem. To find new versions, please use hiero.core.VersionScanner. To obtain the next version, please use BinItem.prevVersion().

versionMaxAvailable() → finds the highest version that is currently loaded and does not have missing or offline media and sets it as the active version on this bin item.

Returns:

hiero.core.Version object

WARNING - DEPRECATED ( versionMaxAvailable ): This method is deprecated and will not be present in future versions of the Python API. Only available versions can now be obtained from BinItem. This method has been replaced by BinItem.maxVersion().

versionMinAvailable() → finds the lowest version that is currently loaded and does not have missing or offline media and sets it as the active version on this bin item.

Returns:

hiero.core.Version object

WARNING - DEPRECATED ( versionMinAvailable ): This method is deprecated and will not be present in future versions of the Python API. Only available versions can now be obtained from BinItem. This method has been replaced by BinItem.minVersion().

versionNextAvailable() → finds the next (higher) version that is currently loaded and does not have missing or offline media and sets it as the active version on this bin item.

Returns:

hiero.core.Version object

WARNING - DEPRECATED ( versionNextAvailable ): This method is deprecated and will not be present in future versions of the Python API. Only available versions can now be obtained from BinItem. This method has been replaced by BinItem.nextVersion().

versionPrevAvailable() → finds the prev (lower) version that is currently loaded and does not have missing or offline media and sets it as the active version on this bin item.

Returns:

hiero.core.Version object

WARNING - DEPRECATED ( versionPrevAvailable ): This method is deprecated and will not be present in future versions of the Python API. Only available versions can now be obtained from BinItem. This method has been replaced by BinItem.prevVersion().

versionUp() → increments the current/active version and returns the newly active Version object of the bin item.

Returns:

hiero.core.Version object

WARNING - DEPRECATED ( versionUp ): This method is deprecated and will not be present in future versions of the Python API. Only available versions can now be obtained from BinItem. To find new versions, please use hiero.core.VersionScanner. To obtain the next version, please use BinItem.nextVersion().

class hiero.core.Clip

Object representing a clip.

Initialisation:

• Clip(mediaSource)

• Clip(mediaSource, first, last)

mediaSource may be a MediaSource object or a string containing the media path. If first and last are given, the Clip only plays frames within this range.

class LocalisationPolicy

kAlwaysLocalise = core.Hiero.Python.Clip.LocalisationPolicy.kAlwaysLocalise

kAutoLocalise = core.Hiero.Python.Clip.LocalisationPolicy.kAutoLocalise

kNeverLocalise = core.Hiero.Python.Clip.LocalisationPolicy.kNeverLocalise

kOffLocalise = core.Hiero.Python.Clip.LocalisationPolicy.kOffLocalise

kOnDemandLocalise = core.Hiero.Python.Clip.LocalisationPolicy.kOnDemandLocalise

kOnLocalise = core.Hiero.Python.Clip.LocalisationPolicy.kOnLocalise

name

values = {'kAlwaysLocalise': core.Hiero.Python.Clip.LocalisationPolicy.kAlwaysLocalise, 'kAutoLocalise': core.Hiero.Python.Clip.LocalisationPolicy.kAutoLocalise, 'kNeverLocalise': core.Hiero.Python.Clip.LocalisationPolicy.kNeverLocalise, 'kOffLocalise': core.Hiero.Python.Clip.LocalisationPolicy.kOffLocalise, 'kOnDemandLocalise': core.Hiero.Python.Clip.LocalisationPolicy.kOnDemandLocalise, 'kOnLocalise': core.Hiero.Python.Clip.LocalisationPolicy.kOnLocalise}

class LocalizationPolicy

kAlwaysLocalize = core.Hiero.Python.Clip.LocalizationPolicy.kAlwaysLocalize

kAutoLocalize = core.Hiero.Python.Clip.LocalizationPolicy.kAutoLocalize

kNeverLocalize = core.Hiero.Python.Clip.LocalizationPolicy.kNeverLocalize

kOffLocalize = core.Hiero.Python.Clip.LocalizationPolicy.kOffLocalize

kOnDemandLocalize = core.Hiero.Python.Clip.LocalizationPolicy.kOnDemandLocalize

kOnLocalize = core.Hiero.Python.Clip.LocalizationPolicy.kOnLocalize

name

values = {'kAlwaysLocalize': core.Hiero.Python.Clip.LocalizationPolicy.kAlwaysLocalize, 'kAutoLocalize': core.Hiero.Python.Clip.LocalizationPolicy.kAutoLocalize, 'kNeverLocalize': core.Hiero.Python.Clip.LocalizationPolicy.kNeverLocalize, 'kOffLocalize': core.Hiero.Python.Clip.LocalizationPolicy.kOffLocalize, 'kOnDemandLocalize': core.Hiero.Python.Clip.LocalizationPolicy.kOnDemandLocalize, 'kOnLocalize': core.Hiero.Python.Clip.LocalizationPolicy.kOnLocalize}

addAnnotationsToNukeScript(script, firstFrame, trimmed, trimStart=None, trimEnd=None)

Add the annotations inside a clip to a Nuke script. This is separated from Clip.addToNukeScript() so it’s easier to control where in the script the annotations are placed. The parameters are used to determine the frame range for the annotations.

addTag() → adds the tag to the set of tags attached to the Clip.

Parameters:

tag – the tag object to add

Returns:

hiero.core.Tag object

addTagToRange(tag, inTime, outTime) → adds the tag to the specified range of the Clip.

Parameters:

• tag – the tag object to add

• inTime – from - time to add tag

• outTime – to - time to add tag

Returns:

hiero.core.Tag object

addToNukeScript(self, script, trimmed=True, trimStart=None, trimEnd=None)

Add a Read node to the Nuke script for each media sequence/file used in this clip. If there is no media, nothing is added.

Parameters:

• script – Nuke script object to add nodes

• additionalNodes – List of nodes to be added post read

• additionalNodesCallback – callback to allow custom additional node per item function([Clip|TrackItem|Track|Sequence])

• firstFrame – Custom offset to move start frame of clip

• trimmed – If True, a TimeClip node will be added to trim the range output by the Read node. The range defaults to the clip’s soft trim range. If soft trims are not enabled on the clip, the range defaults to the clip range. The range can be overridden by passing trimStart and/or trimEnd values.

• trimStart – Override the trim range start with this value.

• trimEnd – Override the trim range end with this value.

• colourTransform – if specified, is set as the color transform for the clip

• metadataNode – node containing metadata to be inserted into the script

• includeMetadataNode – specifies whether a metadata node should be added to the script

• nodeLabel – optional label for the Read node

• enabled – enabled status of the read node. True by default

• includeEffects – if True, soft effects in the clip are included

• beforeBehaviour – What to do for frames before the first ([hold|loop|bounce|black])

• afterBehaviour – What to do for frames after the last ([hold|loop|bounce|black])

clone() → returns a deep copy of this object.

Returns:

hiero.core.Clip object

WARNING - DEPRECATED ( clone ): This method is deprecated and will not be present in future versions of the Python API. This method has been replaced by copy().

copy() → returns a deep copy of this object.

Returns:

hiero.core.Clip object

entityReference() → returns this clip's asset management system entity reference.

Returns:

string

getAvailableOcioColourTransforms() → returns colour transform for the source media.

Returns:

string

getReadInfo(firstFrame=None)

Get information (filename and start at value) for any Read Node in this clip.

Parameters:

firstFrame – Custom offset to move start frame of clip

guid()

hasError() → check if the clip is in error state

hasMultipleViews() → returns true if the Clip has multiple views available for display given the current settings of the project it belongs to.

Returns:

bool

isLocalised() → returns whether the clip is completely localised.

[DEPRECATION WARNING] function will be removed in Nuke 12 use ‘isLocalized’ instead.

Returns:

bool

isLocalizationOutdated() → Returns whether the source media has changed.

Returns:

bool

isLocalized() → returns whether the clip is completely localized.

Returns:

bool

isNull() → returns False if this is a valid Clip object, True otherwise.

Returns:

True or False

kAlwaysLocalise = core.Hiero.Python.Clip.LocalisationPolicy.kAlwaysLocalise

kAlwaysLocalize = core.Hiero.Python.Clip.LocalizationPolicy.kAlwaysLocalize

kAutoLocalise = core.Hiero.Python.Clip.LocalisationPolicy.kAutoLocalise

kAutoLocalize = core.Hiero.Python.Clip.LocalizationPolicy.kAutoLocalize

kNeverLocalise = core.Hiero.Python.Clip.LocalisationPolicy.kNeverLocalise

kNeverLocalize = core.Hiero.Python.Clip.LocalizationPolicy.kNeverLocalize

kOffLocalise = core.Hiero.Python.Clip.LocalisationPolicy.kOffLocalise

kOffLocalize = core.Hiero.Python.Clip.LocalizationPolicy.kOffLocalize

kOnDemandLocalise = core.Hiero.Python.Clip.LocalisationPolicy.kOnDemandLocalise

kOnDemandLocalize = core.Hiero.Python.Clip.LocalizationPolicy.kOnDemandLocalize

kOnLocalise = core.Hiero.Python.Clip.LocalisationPolicy.kOnLocalise

kOnLocalize = core.Hiero.Python.Clip.LocalizationPolicy.kOnLocalize

localisationPolicy() → returns the localisation policy of the clip.

[DEPRECATION WARNING] function will be removed in Nuke 12 use ‘localizationPolicy’ instead.

Returns:

LocalisationPolicy

localisationProgress() → returns the localisation progress of the clip, where 0 is totally non-localised and 1 is completely localised.

[DEPRECATION WARNING] function will be removed in Nuke 12 use ‘localizationProgress’ instead.

Returns:

double

localizationPolicy() → returns the localization policy of the clip.

Returns:

LocalizationPolicy

localizationPriority() → returns localization priority value which determines the order in which files are localized

Returns:

int

localizationProgress() → returns the localization progress of the clip, where 0 is totally non-localized and 1 is completely localized.

Returns:

double

mediaSource() → returns the clip's media source.

Returns:

hiero.core.MediaSource object

metadata()

self.isNull() -> returns a copy of the clip’s metadata.

Returns:

hiero.core.Metadata object

numAudioTracks() → returns number of audio tracks contained by this clip.

Returns:

int

numVideoTracks() → returns number of video tracks contained by this clip.

Returns:

int

readNode() → returns the Read node representing the Clip's media

Returns:

nuke.Node

reconnectMedia(path) → Reconnect the Clip with media found in the specified path.

Parameters:

path – path containing media to reconnect to

refresh() → updates the clip if the source media has changed.

removeTag(tag) → removes the tag from the clip.

Parameters:

tag – hiero.core.Tag object

rescan() → updates the clip and rescan the frame range if the source media has changed.

setCameraColourTransform(colourTransform) → sets the camera colour transform for the source media.

Parameters:

colourTransform – Colour transform name

setEntityReference(location) → set this clip's (asset management system) entity reference.

Parameters:

location – Asset management system’s string identifier for the entity.

setFrameRange() → Sets the clip frame range to the specified values.

setLocalisationPolicy() → sets the localisation policy to the clip.

[DEPRECATION WARNING] function will be removed in Nuke 12 use ‘setLocalizationPolicy’ instead.

Parameters:

localisationPolicy – localisation policy to apply to the clip

setLocalizationPolicy(policy) → sets the localization policy to the clip.

Parameters:

policy – localization policy to apply to the clip

setLocalizationPriority(priority) → sets localization priority value which determines the order in which files are localized

Param:

priority int

setSourceMediaColourTransform(colourTransform) → sets the input colour transform for the source media.

Parameters:

colourTransform – Colour transform name

sourceIn() → returns the source in value for the clip.

Returns:

frame

sourceMediaColourTransform() → returns colour transform for the source media.

Returns:

string

sourceOut() → returns the source out value for the clip.

Returns:

frame

subTrackItems()

views() → get the list of views available for the clip. If it uses a path with %v/%V, this will return all the views for which media exists. If the source media contains multiple named views, it will return those (note this does not work for mov files). Otherwise returns an empty list.

return: list(str)

class hiero.core.ConformRule

Represents a conform rule used by Hiero to make decisions when conforming. Can be derived from in order to make new conform rules.

class Type

kConform = core.Hiero.Python.ConformRule.Type.kConform

kConformAndReconnect = core.Hiero.Python.ConformRule.Type.kConformAndReconnect

kReconnect = core.Hiero.Python.ConformRule.Type.kReconnect

name

values = {'kConform': core.Hiero.Python.ConformRule.Type.kConform, 'kConformAndReconnect': core.Hiero.Python.ConformRule.Type.kConformAndReconnect, 'kReconnect': core.Hiero.Python.ConformRule.Type.kReconnect}

activate() → adds this conform rule to the list of conform rules. Conform operations done after this call will use the rule.

appliesToTrackItems() → should return True if this conform rule applies to track items.

Returns:

True or False; default implementation returns True

compare(media, candidateMedia) → should compare media against candidateMedia, and return True if they match, according to this conform rule.

The metadata contains the following keys which can be used for creating matching rules:

Conformer.kUmid == ‘umid’ Conformer.kName == ‘name’ Conformer.kTapeName == ‘tapeName’ Conformer.kUrl == ‘url’ Conformer.kAudioChannels == ‘audioChannels’ Conformer.kDuration == ‘duration’ Conformer.kFramerate == ‘framerate’ Conformer.kFramerateIsNtsc == ‘framerateIsNtsc’ Conformer.kSamplerate == ‘samplerate’ Conformer.kMediaType == ‘mediaType’ Conformer.kMasterMediaType == ‘masterMediaType’ Conformer.kStartTime == ‘startTime’ Conformer.kTimecode == ‘timecode’ Conformer.kWidth == ‘width’ Conformer.kHeight == ‘height’

Returns:

True for a match, False otherwise; default implementation returns False

conformType() → Get the conform types for which this rule can be used.  The default is kConform.

Returns:

one of the constants kConform, kReconnect, kConformAndReconnect

deactivate() → removes this conform rule from the list of conform rules. Conform operations done after this call will not use the rule.

isNull()

self.name() -> should return True if the conform rule is invalid.

Returns:

True for invalid, False otherwise

kConform = core.Hiero.Python.ConformRule.Type.kConform

kConformAndReconnect = core.Hiero.Python.ConformRule.Type.kConformAndReconnect

kReconnect = core.Hiero.Python.ConformRule.Type.kReconnect

name() → returns the name of the conform rule (which was passed to the object in it's initializer).

Returns:

string

toString() → returns a description of the object. Equivalent to str(object).

Returns:

string

class hiero.core.Conformer

Provides and interface for querying and setting the conform options, such as file pattern filters and active rules. These options mirror those found in the conforming dialog box in the UI.

excludeNonOverlappingTimecode() → returns the state of the exclude non-overlapping timecode flag.

Returns:

True when media which does not have timecode overlapping track items is excluded from matching.

excludePatterns() → returns the list of file patterns that are excluded from source media searches.

By default this is empty.

Returns:

A list containing the file patterns excluded from source media searches.

includeAlreadyMatched() → returns the state of re-conform media flag.

Returns:

True when the tracks that already have media attached will be re-conformed.

includePatterns() → returns the list of file patterns that are included in source media searches.

By default this is ‘*’, which includes all file types.

Returns:

A list containing the file patterns included in source media searches.

nativeRuleFiltering() → returns a dictionary with the names of the native conforming rules and whether they are enabled for conforming.

By changing the state of the flags for the rules and submitting the dictionary back to the Conformer the rules can be filterd out.

Returns:

A dictionary containing the enabled flag for each native rule, keyed by the rule name.

nativeRuleNames() → returns the list of names for the native rules.

This can be used to set rule filtering.

Returns:

A list containing the names for all of the conform rules built-in to Hiero.

pythonRuleFiltering() → returns a dictionary with the names of the Python conforming rules and whether they are enabled for conforming.

By changing the state of the flags for the rules and submitting the dictionary back to the Conformer the rules can be filterd out.

Returns:

A dictionary containing the enabled flag for each Python rule, keyed by the rule name.

pythonRuleNames() → returns the list of names for the registered Python rules.

This can be used to set rule filtering.

Returns:

A list containing the names for all of the conform rules that have been added through the Python API.

setExcludeNonOverlappingTimecode(flag) → controls whether matching is done on media which does not have timecode which overlaps the track item.

setExcludePatterns(filepatterns) → sets the list of file patterns to exclude from source media searches.

setIncludeAlreadyMatched(flag) → controls whether to re-connect tracks that already have media matched to them.

setIncludePatterns(filepatterns) → sets the list of file patterns to include in source media searches.

setNativeRuleFiltering(ruleFiltering) → uses a dictionary keyed on the names of the native conforming rules to set whether each rule is enabled for conforming.

setPythonRuleFiltering(ruleFiltering) → uses a dictionary keyed on the names of the Python conforming rules to set whether each rule is enabled for conforming.

setUseBestTimecodeMatch(flag) → controls whether to accept the best timecode match if no rules match.

useBestTimecodeMatch() → returns the state of the use best timecode match flag.

Returns:

True when the best timecode match will be accepted if no rules match.

class hiero.core.DataCollection

Storage objects for key/value pairs. Generally used to store metadata.

dict() → returns a dictionary of key/value pairs. Can be used to iterate over the items in this collection.

Returns:

dict

hasKey(key) → returns True if the collection has a value for the key.

Parameters:

key – the key to look up

Returns:

True or False

keys() → returns keys in the collection.

Returns:

list of strings which are keys in the collection

readOnly(key) → returns True if the collection can be modified.

Returns:

True or False

setValue(key) → sets the value of the key stored in this collection.

Parameters:

• key – the key to look up

• value – value to assign to key

toString() → returns a formatted list of the key/value pairs currently set on this object. Equivalent to str(object).

Returns:

string

value(key) → returns the value of the key stored in this collection. Throws an exception if the key does not exist.

Parameters:

key – the key to look up

Returns:

string

class hiero.core.EffectTrackItem

Class representing an effect on a sequence. EffectTrackItem is derived from SubTrackItem and thus EffectTrackItem objects can be placed and trimmed on VideoTrack subtracks. The effect’s node can be accessed with effect.node(), which can then be manipulated through the nuke Node API.To create effects, it is recommended you use the hiero.core.VideoTrack.createEffect() method.

Usage: EffectTrackItem(effectType) EffectTrackItem(effectType, timelineIn, timelineOut)

addToNukeScript(script, offset=0, inputs=1, startHandle=0, endHandle=0, addLifetime=True)

clone() → returns a deep copy of this object but, unlike copy(), this clones the underlying Nuke node so that the knobs are shared.

copy() → returns a deep copy of this object.

declone() → Declones the effect item. Has no effect if the item is not a clone.

isRetimeEffect()

Check if an EffectTrackItem applies a retime. Currently this only applies to TimeWarp effects.

isValid() → Returns true if the effect item is in a valid state and position and false otherwise.

name() → Get the name of the effect's node.

Returns:

string

node() → Node

Get the node used to apply the effect.

Returns:

The effect node.

setName() → Set the name of the effect's node.

toString() → returns a description of the object. Equivalent to str(object).

Returns:

string

class hiero.core.ExportStructure2

ExportStructure2 is the implementation of the datastructure used to represent the export tree, each node within the tree is represented by an ExportStructureElement. Although this matches how the export presets are viewed in the UI, when it comes running an export, or persisting the structure, it is flattened into a list of paths and task presets.

exportRootPath()

Returns the exportRootPath, the root of the export into which the export structure is built

findElementsByPath(path)

Find the elements matching path. Returns a list.

flatten()

Return the hierarchy as a list of (path, preset) tuples

restore(sequence)

Restore the hierarchy from a list of (path, preset) tuples

rootElement()

Return the root element in this hierarchy. The root element is not included in the path generation

setExportRootPath(rootPath)

Set the exportRootPath, the root of the export into which the export structure is built

class hiero.core.ExportStructureElement(name, isFolder)

ExportStructureElement represents a node within the export structure

addChild(child)

Add a child to this Element

addPathChangedCallback(callback)

Add a callback to be notified when the path of this element has changed, callbacks should take the arguments (oldPath, newPath).

child(index)

Return a child by index

childCount()

Return the number of children

childIndex(element)

Given a child element, identify and return the index of the child within the children array. Returns -1 if child not found.

children()

Return a list of children

clearChildren()

Clear all the children

createChildFolder(path)

createChildFromPreset(path, preset)

Create a child element from a path and existing preset

createChildTask(path)

findElementsByPath(path)

Search recursively through the element tree finding elements which match path. Returns a list.

fromXml(xml)

Build Child Elements from XML data

isLeaf()

Returns True if node is flagged as leaf and may not accept children

name()

Return the name of this Element

parent()

Return the parent element of this Element

path()

Return the path of this Element

pathChanged(oldPath)

Notify children and any observers that the element’s path has changed.

preset()

Return the preset assigned to this Element. May be None

removeChild(child)

Remove a child from this Element

setName(name)

Set the name of this element.

setPreset(preset)

Set the preset assigned to this Element. May be None

setPresetType(self, identifier)

Parameters:

identifier – Unique identifier from the Task which is used to associate the preset type

toXml()

Serialize Element and children to XML

class hiero.core.FlipbookManager

Object for Flipbook manager

createClip(filepath) → creates and return a flipbook clip for the defined filepath.

Returns:

hiero.core.Clip

createEffectItem(effectType, timelineIn, timelineOut) → creates and return a flipbook Soft Effect with defiend effectType,

covering the specified timeline in and out range.

Returns:

hiero.core.EffectTrackItem

createSequence(framerate, outputformat) → creates and returns a flipbook sequence with the defined framerate and ouput formar.

Returns:

hiero.core.Sequence

setWorkingSpace(workingSpace) → sets the colorspace to use as the working space.

Returns:

None

updateOCIOConfig(ocioConfigPath) → updates the flipbook OCIO setting with the defined ocio config filename.

Returns:

None

class hiero.core.FolderTask(initDict)

Task which just creates an empty folder.

class hiero.core.FolderTaskPreset(name, properties)

Preset which can be used for creating an empty folder.

class hiero.core.Format

Object containing width, height, pixel aspect, and name of a Clip/Sequence format.

Initialisation: Format(width, height, pixel_aspect, name)

Format(formatStr)

Param:

width - the format’s width in pixels (integer)

Param:

height - the format’s height in pixels (integer)

Param:

pixel_aspect - the format’s pixel aspect ratio (float)

Param:

name - the display name of the format (string)

Param:

formatStr - the string representation of the format in the form returned by str(format)

Examples: F = hiero.core.Format(2048, 400, 2.37, ‘MyFormat’), F = hiero.core.Format(‘2048 400 0 0 2048 400 2.37 MyFormat’)

addToNukeScript(self, script, to_type) → adds a Reformat node matching this Format to the specified script and returns the nuke node object.     @param script: Nuke script object to add nodes to, or None to just generate and return the node.   @param resize: Type of resize (use constants from nuke.ReformatNode, default is kResizeWidth).   @parm black_outside: Value for the black_outside knob.   @return: hiero.core.nuke.ReformatNode object

aspect() → returns the aspect ratio of this format.

Returns:

float

cleanAperture() → returns a 4 element tuple with the rectangle (x1, y1, x2, y2) of the clean aperture.

Returns:

tuple

height() → returns the height of this format.

Returns:

int

isValid() → returns whether or not this format object has valid data.

Returns:

True or False

name() → returns the name of this format.

Returns:

string

pixelAspect() → returns the pixel aspect ratio of this format.

Returns:

float

productionAperture() → returns a 4 element tuple with the rectangle (x1, y1, x2, y2) of the production aperture.

Returns:

tuple

toString() → returns a description of the object. Equivalent to str(object).

Returns:

string

width() → returns the width of this format

Returns:

int

class hiero.core.IExportStructure

childElement()

exportRootPath()

rootElement()

setExportRootPath()

class hiero.core.IExportStructureElement

addChild()

child()

childCount()

childIndex()

clearChildren()

createChildFolder()

createChildTask()

fromXml()

isLeaf()

name()

parent()

path()

preset()

removeChild()

setName()

setPreset()

setPresetType()

toXml()

class hiero.core.IExporterRegistry

IExporterRegistry provides a simple interface for our C++ Application to access python instance of hiero.core.TaskRegistry.

This class should not be used directly; use hiero.core.TaskRegistry instead.

assignPresetToProject(hiero.core.TaskPreset, hiero.core.Project) → Called by the C++ application to assign a TaskPreset to .

a null hiero.core.Project will remove the project assignment and revernt the preset to local ownership.

Param:

hiero.core.TaskPreset

Param:

hiero.core.Project

copyAndAddProcessorPreset() → Called by the C++ application to duplicate a preset.

Param:

hiero.core.TaskPreset instance for duplication

Returns:

new hiero.core.TaskPreset instance

copyAndAddProjectPreset() → Called by the C++ application to duplicate a preset and assign it to a new project.

Param:

hiero.core.TaskPreset instance for duplication

Param:

hiero.core.Project to which cloned preset should be assigned

Returns:

new hiero.core.TaskPreset instance

createAndAddProcessorPreset(string, hiero.core.TaskPreset) → Called by the C++ application to create a new preset, using typetemplate as a template.

Param:

string - Preset name

Returns:

hiero.core.TaskPreset instance as type template

createAndExecuteProcessor(hiero.core.TaskPreset, [hiero.core.ItemWrapper, ]string) → Called by the C++ application to instantiate the Processor associated with specified preset and execute on the selected items.

Param:

hiero.core.TaskPreset

Param:

list of items for export

Param:

name of submission object used for dispatching job to renderfarm

discardPresetChanges()

self.startPresetChanges(hiero.core.Project) -> Discard any changes to the presets since startPresetChanges() was called.

Param:

hiero.core.Project)

loadPresets(string) → Called by the C++ application to load presets from a specified path.

Param:

path as string

localPresets()

self.projectPresets() -> Returns a list of local presets assigned to the specified Project.

Returns:

list of TaskPreset instances

localPresetsChanged() → Called by the C++ application to check whether local presets have changed since last save.

Returns:

bool changed state

nukeShotExportPresets(hiero.core.Project) → Get a list of presets which are contain Nuke shot exports.

Returns:

list of TaskPreset instances

presetFromXml(string) → Called by the C++ application to ask the TaskRegistry to deserialize a Task preset from xml.

Param:

string - Preset XML

Returns:

hiero.core.TaskPreset instance

presetToPrettyXml(hiero.core.TaskPreset) → Called by the C++ application to ask the TaskRegistry to serialize a Task preset to human friendly formatted xml.

Param:

hiero.core.TaskPreset instance

Returns:

string - Preset XML

presetToXml(hiero.core.TaskPreset) → Called by the C++ application to ask the TaskRegistry to serialize a Task preset to xml.

Param:

hiero.core.TaskPreset instance

Returns:

string - Preset XML

presetsSubDirectory() → Get the sub-directory in the plugin paths to search for presets.

projectDuplicated(hiero.core.Project, hiero.core.Project) → Called by the C++ application to notify the TaskRegistry that a project has been duplicated and its associated Presets should be duplicated and assigned to the new project.

Param:

hiero.core.Project - original project

Param:

hiero.core.Project - new project

projectExportHistoryXml(hiero.core.Project) → Returns a list of XML fragments containing the project export history.

Parameters:

hiero.core.Project – project

Returns:

list of strings

projectPresets(hiero.core.Project) → Returns a list of project presets assigned to the specified Project.

Param:

hiero.core.Project

Returns:

list of TaskPreset instances

projectPresetsChanged(hiero.core.Project) → Called by the C++ application to check whether project presets have changed since project last save.

Param:

hiero.core.Project

projectUnloaded(hiero.core.Project) → Called by the C++ application to notify the TaskRegistry that a project has been unloaded and its associated Presets should be released.

Param:

hiero.core.Project

registerme() → Called from python implimentation of TaskRegistry to register instance as the Application Task Registry.

removeProcessorPreset(hiero.core.TaskPreset) → Called by the C++ application to remove a preset from the registry.

Param:

hiero.core.TaskPreset

renameProcessorPreset(hiero.core.TaskPreset, string) → Called by the C++ application to rename a preset in the registry.

Param:

hiero.core.TaskPreset

restoreProjectExportHistoryXml(hiero.core.Project, list) → Restore the export history for a project.

Parameters:

• hiero.core.Project – project

• list – list of strings containing export history

revertDefaultPresets(string) → Called by the C++ application reconstruct the default presets.

Param:

path as string

savePresets(string) → Called by the C++ application to save presets to a specified path.

Param:

path as string

startPresetChanges(hiero.core.Project) → Called when the user might start editing the presets, so the changes can be reverted if necessary.

Param:

hiero.core.Project)

submissionChanged(string, hiero.core.Project) → Called by the C++ application when the submission choice changes in the Export Dialog.

Param:

submission name as a string

submissionNames() → Called by the C++ application to get a list of the available Submission objects. Submission objects are used to manage render farm renders.

Returns:

list of name strings

validateExport(hiero.core.TaskPreset[, hiero.core.ItemWrapper]) → Called by the C++ application to determinate if preset and selected items have valid resolution according the application mode.

A warning message will be shown in case of any invalid output resolution.

Param:

hiero.core.TaskPreset

Param:

list of items for export

Returns:

An error string if disallowed, otherwise an empty string.

class hiero.core.ITask

ITask provides a simple interface for our C++ Application to access Python instances of TaskBase.

This class should not be used directly; use hiero.core.TaskBase instead.

addToQueue() → adds this task into the task queue.

children() → get a list of child tasks.  Note that this list should not change after addToQueue() has been called.

clearError() → clears the error or warning string for this task.

destinationDescription() → Get the destination description.

error() → Get the error string if one has been set.

finishTask() → called by Hiero to tell the Task to that it's finished. Subclasses should finish processing in their override of this method (close files, clean up).

forcedAbort() → called by Hiero when the user presses the Abort button. Subclasses should do any clean up in their override of this method.

formatDescription() → Get a description of the format that this task writes to.

getExportDuration() → Return the time this task took to export in milliseconds. Will return 0 until the task has finished exporting.

ident() → called by Hiero to get a unique identifier for this task.

progress() → called by Hiero to find out from the task what it's progress is, between 0.0 and 1.0.

setDestinationDescription(desc)

Parameters:

desc – string

setDuplicate() → Sets the flag cancelling this task and marking as duplicate.

setError(desc) → sets the error string displayed to the user in the task dialog. Error strings display in red.

Parameters:

desc – the text to display

setExportDuration()

For internal use only. Do not use.

setFormatDescription(desc) → tells Hiero a description of the format that this task writes to.

Parameters:

desc – description of the format that this task outputs

setSynchronous() → Flags this task as synchronous. When added to the queue, this task will be executed imediately on the current thread. The Flag must be set prior to adding to queue

setTaskDescription(description) → tells Hiero a descriptive string for the task that it can use to show the user through the user interface and/or store it for reference. Helpful when debugging.

Parameters:

desc – description of the task

setWarning(desc) → sets the warning string displayed to the user in the task dialog. Warning strings display in orange.

Parameters:

desc – the text to display

startTask() → called by Hiero to tell the Task to start. Subclasses should start processing in their override of this method.

synchronous() → Returns the state of the Synchronous flag. If True, wheb added to the queue, this task will be executed imediately on the current thread.

taskDescription() → Get a description of the task.

taskStep() → called by Hiero repeatedly until the progress method returns 1.0 or greater. Step based processing should occur in this method by subclasses of Task.

class hiero.core.ITaskPreset

ITaskPreset provides a simple interface for our C++ Application to access Python instances of TaskPreset.

This class should not be used directly; use hiero.core.TaskPresetBase instead.

class ItemTypes

kAllItems = core.Hiero.Python.ITaskPreset.ItemTypes.kAllItems

kAudioTrackItem = core.Hiero.Python.ITaskPreset.ItemTypes.kAudioTrackItem

kClip = core.Hiero.Python.ITaskPreset.ItemTypes.kClip

kSequence = core.Hiero.Python.ITaskPreset.ItemTypes.kSequence

kTrackItem = core.Hiero.Python.ITaskPreset.ItemTypes.kTrackItem

name

values = {'kAllItems': core.Hiero.Python.ITaskPreset.ItemTypes.kAllItems, 'kAudioTrackItem': core.Hiero.Python.ITaskPreset.ItemTypes.kAudioTrackItem, 'kClip': core.Hiero.Python.ITaskPreset.ItemTypes.kClip, 'kSequence': core.Hiero.Python.ITaskPreset.ItemTypes.kSequence, 'kTrackItem': core.Hiero.Python.ITaskPreset.ItemTypes.kTrackItem}

getResolveEntryCount() → called by Hiero to get the number of resolve tokens available on this TaskPreset.

ident() → called by Hiero to get a unique identifier for the Task related to this TaskPreset.

isDeprecated() → returns whether or not this task preset is using a deprecated configuration.

Returns:

True or False

kAllItems = core.Hiero.Python.ITaskPreset.ItemTypes.kAllItems

kAudioTrackItem = core.Hiero.Python.ITaskPreset.ItemTypes.kAudioTrackItem

kClip = core.Hiero.Python.ITaskPreset.ItemTypes.kClip

kSequence = core.Hiero.Python.ITaskPreset.ItemTypes.kSequence

kTrackItem = core.Hiero.Python.ITaskPreset.ItemTypes.kTrackItem

markedForDeletion() → called by Hiero to check if the preset is marked for deletion.

name() → called by Hiero to get the preset name.

project() → called by Hiero to discover which Project (if any), this preset is assigned to

readOnly() → called by Hiero to discover if this preset is marked ReadOnly.

resolveEntryDescription() → called by Hiero to get a resolve token description by index.

resolveEntryName() → called by Hiero to get a resolve token ({shot}) by index.

setMarkedForDeletion() → called by Hiero to mark this preset for deletion. The delete is not performed until presets are saved.

setProject() → called by Hiero to assign a preset to a Project.

setReadOnly() → called by Hiero to mark this preset as ReadOnly.

summary() → called by Hiero to get the preset description.

supportedItems() → called by Hiero to establish what types of object this export task operates on (Clips, Sequences, TrackItems).

supportsAudio() → returns whether or not this task preset supports audio.

Returns:

True or False

class hiero.core.ItemWrapper

bin() -> converts this ItemWrapper to a hiero.core.Bin object. If the item wrapper isn't wrapping a Bin object, it will return a non-functioning (isNull returns True) TrackItem object (meaning that it has all of the methods of a Bin object, but the methods don't do anything)

Returns:

hiero.core.Bin object

binItem() -> converts this ItemWrapper to a hiero.core.BinItem object. If the item wrapper isn't wrapping a BinItem object, it will return a non-functioning (isNull returns True) TrackItem object (meaning that it has all of the methods of a BinItem object, but the methods don't do anything)

Returns:

hiero.core.BinItem object

clip() -> converts this ItemWrapper to a hiero.core.Clip object. If the item wrapper isn't wrapping a Clip object, it will return a non-functioning (isNull returns True) Clip object (meaning that it has all of the methods of a Clip object, but the methods don't do anything)

Returns:

hiero.core.Clip object

ignore()

isNull() → returns True if this is a invalid or uninitialized item, or False otherwise

Returns:

True or False

item() → Return the item contained within this wrapper.

Returns:

hiero.core.Sequence | hiero.core.Clip | hiero.core.TrackItemBase | hiero.core.BinItem

name() → Returns item name.

Returns:

string

root() → the root is the highest level in the bin selected for export, Root may be null.

Returns:

hiero.core.Bin object

sequence() -> converts this ItemWrapper to a hiero.core.Sequence object. If the item wrapper isn't wrapping a Sequence object, it will return a non-functioning (isNull returns True) Sequence object (meaning that it has all of the methods of a Sequence object, but the methods don't do anything)

Returns:

hiero.core.Sequence object

setTrackItemsForViews()

trackItem() -> converts this ItemWrapper to a hiero.core.TrackItemBase object. If the item wrapper isn't wrapping a TrackItem object, it will return a non-functioning (isNull returns True) TrackItem object (meaning that it has all of the methods of a TrackItem object, but the methods don't do anything)

Returns:

hiero.core.TrackItem object

trackItemsForViews()

class hiero.core.Keys

kAssetEntityReference = 'foundry.asset.entityReference'

kClipComment = 'foundry.timeline.comment'

kColorSpace = 'foundry.timeline.colorSpace'

kDDImageRootNodeName = 'media.'

kEdlComments = 'foundry.edl.comments'

kEdlEditNumber = 'foundry.edl.editNumber'

kEdlEditString = 'foundry.edl.editString'

kEdlEffect = 'foundry.edl.effect'

kEdlMode = 'foundry.edl.mode'

kEdlName = 'foundry.edl.name'

kEdlRetime = 'foundry.edl.retime'

kEdlSourceReel = 'foundry.edl.sourceReel'

kEdlSrcIn = 'foundry.edl.srcIn'

kEdlSrcOut = 'foundry.edl.srcOut'

kEdlSrcTimecode = 'foundry.edl.timecode'

kEdlTimelineIn = 'foundry.edl.dstIn'

kEdlTimelineOut = 'foundry.edl.dstOut'

kMXFPreferredTransfer = 'mxf.thefoundry.PreferredTransfer'

kMediaAudioChannels = 'audioChannels'

kMediaDuration = 'duration'

kMediaForceTimecode = 'forceTimecode'

kMediaFramerate = 'framerate'

kMediaFramerateIsNtsc = 'framerateIsNtsc'

kMediaHeight = 'height'

kMediaIsStillFrame = 'stillFrame'

kMediaMasterMediaType = 'masterMediaType'

kMediaMediaType = 'mediaType'

kMediaName = 'name'

kMediaSamplerate = 'samplerate'

kMediaStartTime = 'startTime'

kMediaTapeName = 'tapeName'

kMediaTimecode = 'timecode'

kMediaUmid = 'umid'

kMediaUrl = 'url'

kMediaWidth = 'width'

kNukePixelEncodingMatrix = 'uk.co.thefoundry.YCbCrMatrix'

kPlayerTrack = 'foundry.track.player'

kQuickTimeColourspace = 'quicktime.thefoundry.Colorspace'

kQuickTimeGamma = 'com.apple.quicktime.gamma'

kQuickTimePixelEncoding = 'com.apple.quicktime.codec_pixel_encoding'

kQuickTimePreferredMatrix = 'com.apple.quicktime.preferred_matrix'

kQuickTimePreferredTransfer = 'com.apple.quicktime.preferred_transfer'

kReadParams = 'foundry.timeline.readParams'

kSourceAudioBitDepth = 'foundry.source.audiobitdepth'

kSourceBitmapSize = 'foundry.source.bitmapsize'

kSourceDuration = 'foundry.source.duration'

kSourceFormat = 'foundry.source.format'

kSourceFramerate = 'foundry.source.framerate'

kSourceGamma = 'foundry.source.gamma'

kSourceHasDefaultView = 'foundry.source.hasDefaultView'

kSourceHeight = 'foundry.source.height'

kSourceInputColourTransform = 'foundry.source.colourtransform'

kSourceLayers = 'foundry.source.layers'

kSourceNumAudioChannels = 'foundry.source.numaudiochannels'

kSourceNumSamples = 'foundry.source.numsamples'

kSourceOriginalSamplerate = 'foundry.source.originalsamplerate'

kSourcePixelAspectRatio = 'foundry.source.pixelAspect'

kSourceReelId = 'foundry.source.reelID'

kSourceSamplerate = 'foundry.source.samplerate'

kSourceShootTime = 'foundry.source.shoottime'

kSourceShortFileName = 'foundry.source.shortfilename'

kSourceSize = 'foundry.source.size'

kSourceStartTime = 'foundry.source.starttime'

kSourceTimecode = 'foundry.source.timecode'

kSourceTimecodeDropFrame = 'foundry.source.timecodedropframe'

kSourceUmid = 'foundry.source.umid'

kSourceViewUnspecifiedPostfix = ']'

kSourceViewUnspecifiedPrefix = '['

kSourceViews = 'foundry.source.views'

kSourceViewsDelimiter = ','

kSourceWidth = 'foundry.source.width'

kTimelineAudioSynced = 'foundry.timeline.audiosynced'

kTimelineDuration = 'foundry.timeline.duration'

kTimelineFramerate = 'foundry.timeline.framerate'

kTimelineIn = 'foundry.timeline.in'

kTimelineName = 'foundry.timeline.name'

kTimelineOut = 'foundry.timeline.out'

kTimelineOutputFormat = 'foundry.timeline.outputformat'

kTimelineOverrideOutputFormat = 'foundry.timeline.overrideoutputformat'

kTimelinePoster = 'foundry.timeline.poster'

kTimelinePosterLayer = 'foundry.timeline.posterLayer'

kTimelineSamplerate = 'foundry.timeline.samplerate'

kTrackBlendEnabled = 'foundry.track.blendEnabled'

kTrackBlendMode = 'foundry.track.blendMode'

kTrackDuration = 'foundry.track.duration'

kTrackEnabled = 'foundry.track.enabled'

kTrackLocked = 'foundry.track.locked'

kTrackMaskBlendEnabled = 'foundry.track.maskBlendEnabled'

kTrackVolume = 'foundry.track.volume'

hiero.core.LUTGroup()

hiero.core.LUTs() → returns a tuple with the names of all of the available luts.

Returns:

tuple of strings

class hiero.core.MediaFileInfo

Object representing a single set of media files on disk.

endFrame() → returns the last frame of the media source contained by this object. Note that for video formats (mov, r3d), this will always be the media's (duration - 1).

Returns:

integer frame

filename() → returns a path to a media source on disk. May represent multiple files, as with image sequences. The form will be one of the following, depending on the file extension of the media:

• /somepath/file.mov

• /somepath/imagesequence.######.dpx (1-40)

In the case of the image sequence above, the numbers between the brackets represent the first and last frame of the sequence.

Returns:

string

startFrame() → returns the first frame of the media source contained by this object. Note that for video formats (mov, r3d), this will always be 0.

Returns:

integer frame

class hiero.core.MediaSource

Represents a media source.

class MediaType

kAudio = core.Hiero.Python.MediaSource.MediaType.kAudio

kVideo = core.Hiero.Python.MediaSource.MediaType.kVideo

name

values = {'kAudio': core.Hiero.Python.MediaSource.MediaType.kAudio, 'kVideo': core.Hiero.Python.MediaSource.MediaType.kVideo}

associatedFilePaths() → Return a list of file paths associated with the 'main' file, this is used with r3d clips where there are multiple r3ds in sequence, or rmd files.

Returns:

list of path strings

static createOfflineVideoMediaSource() → returns a media source that might be an offline video file. Use this to explicitly set what you expect the start, duration and framerate of the video source to be, once it becomes available.

Raises a RuntimeError if the source path exists but could not be read by Hiero.

Parameters:

• path – path to where the media will eventually be

• start – start of the media, in frames

• duration – duration of the media, in frames

• frameRate – TimeBase representing the frame rate of the media source

• startTimecode – start timecode of the media

Returns:

Created MediaSource

duration() → returns the duration, in frames.

Returns:

frames

fileinfos() → returns a tuple of hiero.core.MediaFileInfo objects, which can be used to retrieve all of the file fragments that are used by this MediaSource.

Returns:

tuple of hiero.core.MediaFileInfo objects

filename() → returns the file name (and just the file name) of the first file used for the MediaSource.

Deprecated; Please use the fileinfos() method instead.

Returns:

string

filenameHead() → returns the portion of filename before the frame index for an image sequence.

Returns:

string

filenamePadding()

self.filenameHead() -> returns the number characters used for frame index. -1 if not an image sequence.

Returns:

int

firstpath() → returns the full path of the first file used for the MediaSource.

Deprecated; Please use the fileinfos() method instead.

Returns:

string

fragmentFilename(fragmentIndex) → returns the file name (and just the file name) for the fragment of the MediaSource, specified by the fragmentIndex.

Deprecated; Please use the fileinfos() method instead

Parameters:

fragmentIndex – index of the fragment to retrieve

Returns:

string

fragmentPath(fragmentIndex) → returns the full path for the fragment of the MediaSource, specified by the fragmentIndex.

Deprecated; Please use the fileinfos() method instead.

Parameters:

fragmentIndex – index of the fragment to retrieve

Returns:

string

hasAudio() → True if the source has audio.

Returns:

True or False

hasVideo() → True if the source has video.

Returns:

True or False

height() → returns the height of the media.

Returns:

int

isMediaPresent() → returns True if the media is present.

Returns:

True or False

isNull() → True if the object points to an invalid source, False otherwise.

Returns:

True or False

isOffline() → returns True if the media is missing or unavailable for any reason.

Returns:

True or False

kAudio = core.Hiero.Python.MediaSource.MediaType.kAudio

kVideo = core.Hiero.Python.MediaSource.MediaType.kVideo

metadata() → returns a hiero.core.Metadata object with metadata for the MediaSource.

Returns:

hiero.core.Metadata object

numChannels()

numFragments() → returns the number of files used by this MediaSource, or -1 for invalid media. For instance, for mov files, this will return 1; for exr sequences this method will return the number of exr files in the sequence.

Deprecated; Please use the fileinfos() method instead.

Returns:

int

pixelAspect() → returns the pixel aspect ratio of the media.

Returns:

float

refresh() → updates source info for latest changes in underlying files but doesn't update the frame range

singleFile() → returns True if this MediaSource is comprised of only a single file regardless of how many frames it contains (like a .mov or .r3d).

Returns:

True or False

startTime() → returns the start time of the media.

Returns:

int

timecodeStart()

toString(includeMetadata=False) → returns a string with info for the MediaSource. str(object) is equivalent to object.toString().

Parameters:

includeMetadata – True adds metadata to the string, False does not

Returns:

string

width() → returns the width of the media.

Returns:

int

class hiero.core.NamingScheme

Utility object for extracting names for clips, versions and objects out of clip objects

static clipName(clip) → extracts name from clip that will be used for displaying the clip object, based on the underlying file(s).

Redefine this method if desired for customized naming schema. Use default_clipName for default functionality if needed.

Parameters:

clip – a clip to extract the name from

Returns:

string

static default_clipName(clip) → extracts name from clip that will be used for displaying the clip object, based on the underlying file(s).

Do not redefine this method. It preserves accessibility to default functionality when redefining clipName.

Parameters:

clip – a clip to extract the name from

Returns:

string

static default_rootName(clip) → extracts name from clip that will be used for displaying the bin item object, based on the underlying file(s).

Do not redefine this method. It preserves accessibility to default functionality when redefining rootName.

Parameters:

clip – a clip to extract the name from

Returns:

string

static default_trackItemName(clip) → extracts name from clip that will be used for naming track items when added to a sequence.

Do not redefine this method. It preserves accessibility to default functionality when redefining trackItemName.

Parameters:

clip – a clip to extract the name from

Returns:

string

static default_versionName(clip) → extracts name from clip that will be used for displaying the version object, based on the underlying file(s).

Do not redefine this method. It preserves accessibility to default functionality when redefining versionName.

Parameters:

clip – a clip to extract the name from

Returns:

string

static rootName(clip) → extracts name from clip that will be used for displaying the bin item object, based on the underlying file(s).

Redefine this method if desired for customized naming schema. Use default_rootName for default functionality if needed.

Parameters:

clip – a clip to extract the name from

Returns:

string

static trackItemName(clip) → extracts name from clip that will be used for naming track items when added to a sequence.

Redefine this method if desired for customized naming schema. Use default_trackItemName for default functionality if needed.

Parameters:

clip – a clip to extract the name from

Returns:

string

static versionName(clip) → extracts name from clip that will be used for displaying the version object, based on the underlying file(s).

Redefine this method if desired for customized naming schema. Use default_versionName for default functionality if needed.

Parameters:

clip – a clip to extract the name from

Returns:

string

class hiero.core.ProcessorBase(preset, submission, synchronous=False)

ProcessorBase is the base class from which all Processors should derive. The Processor object is responible for taking the object selection and spawning Tasks with the appropriate parameters.

errors()

Get an error string from the processor. Iterates over child tasks and adds their error messages to the string. Returns None if there were no errors.

processTaskPreQueue()

processTaskPreQueue() Walk Tasks in submission and mark any duplicates.

skipOffline()

startProcessing(exportItems, preview=False)

Generate export tasks and add them to the export queue. If preview is True, the tasks are created and returned, but not scheduled for execution.

validItem(supportedTypes, item)

Get if the task is able to run on the item it was initialised with.

class hiero.core.ProcessorPreset(parentType, presetName)

ProcessorPreset is the base class from which all Processor Presets must derrive The purpose of a Processor Preset is to store and data which must be serialized to file and shared between the Processor and ProcessorUI user interface component

class hiero.core.Project

Object for manipulating projects. Can be created using hiero.core.newProject() or by the following code: hiero.core.openProject(projectPath) project = hiero.core.projects()[-1]

class OpenFlags

kProjectOpenDontAddToRecent = core.Hiero.Python.Project.OpenFlags.kProjectOpenDontAddToRecent

kProjectOpenNoFlags = core.Hiero.Python.Project.OpenFlags.kProjectOpenNoFlags

kProjectOpenStartup = core.Hiero.Python.Project.OpenFlags.kProjectOpenStartup

name

values = {'kProjectOpenDontAddToRecent': core.Hiero.Python.Project.OpenFlags.kProjectOpenDontAddToRecent, 'kProjectOpenNoFlags': core.Hiero.Python.Project.OpenFlags.kProjectOpenNoFlags, 'kProjectOpenStartup': core.Hiero.Python.Project.OpenFlags.kProjectOpenStartup}

class PosterFrameSetting

eCustom = core.Hiero.Python.Project.PosterFrameSetting.eCustom

eFirst = core.Hiero.Python.Project.PosterFrameSetting.eFirst

eLast = core.Hiero.Python.Project.PosterFrameSetting.eLast

eMiddle = core.Hiero.Python.Project.PosterFrameSetting.eMiddle

name

values = {'eCustom': core.Hiero.Python.Project.PosterFrameSetting.eCustom, 'eFirst': core.Hiero.Python.Project.PosterFrameSetting.eFirst, 'eLast': core.Hiero.Python.Project.PosterFrameSetting.eLast, 'eMiddle': core.Hiero.Python.Project.PosterFrameSetting.eMiddle}

class SaveFlags

kProjectSaveAsShowFileDialog = core.Hiero.Python.Project.SaveFlags.kProjectSaveAsShowFileDialog

kProjectSaveDontAddToRecent = core.Hiero.Python.Project.SaveFlags.kProjectSaveDontAddToRecent

kProjectSaveDontChangeProjectPath = core.Hiero.Python.Project.SaveFlags.kProjectSaveDontChangeProjectPath

kProjectSaveKeepName = core.Hiero.Python.Project.SaveFlags.kProjectSaveKeepName

kProjectSaveNoFlags = core.Hiero.Python.Project.SaveFlags.kProjectSaveNoFlags

name

values = {'kProjectSaveAsShowFileDialog': core.Hiero.Python.Project.SaveFlags.kProjectSaveAsShowFileDialog, 'kProjectSaveDontAddToRecent': core.Hiero.Python.Project.SaveFlags.kProjectSaveDontAddToRecent, 'kProjectSaveDontChangeProjectPath': core.Hiero.Python.Project.SaveFlags.kProjectSaveDontChangeProjectPath, 'kProjectSaveKeepName': core.Hiero.Python.Project.SaveFlags.kProjectSaveKeepName, 'kProjectSaveNoFlags': core.Hiero.Python.Project.SaveFlags.kProjectSaveNoFlags}

addView(name, color) → Appends a view to this project's list of views. Returns False if name is empty or a view already exists with the same name.

Parameters:

• name – string

• color – optional; string in the format #RGB, #RRGGBB, #RRRGGGBBB, #RRRRGGGGBBBB or a name from the list of colors defined in the list of SVG color keyword names

Returns:

True or False

audioTrackItems(partialName) → returns all audio track items in a project.

Parameters:

partialName – optional string with partial name to match against. Will match if this string is anywhere in the name.

Returns:

an array of hiero.core.TrackItem objects.

Example: finds all audio track items in a project with 30Sec in the name:

trackItems = myProject.audioTrackItems(‘30Sec’)

audioTracks(partialName) → returns all audio tracks in a project.

Parameters:

partialName – optional string with partial name to match against. Will match if this string is anywhere in the name.

Returns:

an array of hiero.core.AudioTrack objects.

Example: finds all audio tracks in a project with 30Sec in the name:

tracks = myProject.audioTracks(‘30Sec’)

autosave() → if the project has been modified create an autosave file

beginUndo(name) → starts a new undo action, which will group all other undo actions until self.endUndo() is called. Be aware that this method only works on the main thread, and will throw an exception otherwise.

Note that for operations inside the undo to work Project.endUndo() must be called. It is recommended that you use this in a with block to ensure that this happens. For example:

with project.beginUndo(‘My Undo’):

// Undoable edits

Returns:

UndoGroup object

bins(partialName) → returns all bins in a project. Searches recursively, so will return bins within other bins in the list.

Parameters:

partialName – optional string with partial name to match against. Will match if this string is anywhere in the name.

Returns:

an array of hiero.core.Bin objects.

Example: finds all bins in a project with MyBin in the name:

bins = myProject.bins(‘MyBin’)

buildTrackName() → get default track name used when building vfx trackthis can be configured in the project settings dialog

cancelUndo() → cancels an undo action started previously by a call to self.beginUndo().

clearUnusedLocalFiles() → clear all localised files that are not in any currently open project. This requires localisation to be enabled

clips(partialName) → returns all clips in a project.

Parameters:

partialName – optional string with partial name to match against. Will match if this string is anywhere in the name.

Returns:

an array of hiero.core.Clip objects.

Example: finds all clips in a project with 30Sec in the name:

clips = myProject.clips(‘30Sec’)

clipsBin() → returns the bin object containing the top level clips, sequences and bins for this project.

Returns:

hiero.core.Bin object

close() → closes the project. Be aware that this method will not save the project, even if changes have been made since the last save of the project.

customExportDirectory() → Get the custom directory used for exports if useCustomExportDirectory() is set to True.

Returns:

string

deletable() → returns True if the project can be deleted.

Returns:

True or False

deleteView(name) → Removes the view with the matching name from this project's list of views. Returns False if no matching view is found or if the view to be deleted is the only view in the project.

Parameters:

name – string

Returns:

True or False

eCustom = core.Hiero.Python.Project.PosterFrameSetting.eCustom

eFirst = core.Hiero.Python.Project.PosterFrameSetting.eFirst

eLast = core.Hiero.Python.Project.PosterFrameSetting.eLast

eMiddle = core.Hiero.Python.Project.PosterFrameSetting.eMiddle

editable() → returns True if the project can be edited.

Returns:

True or False

endUndo() → ends an undo action started previously by a call to self.beginUndo(). This will put a new item into the Edit > Undo/Redo menu items.

exportRootDirectory() → The root directory to use for exports. This will return either self.projectDirectory(True) or self.customExportDirectory() depending on the self.useCustomExportDirectory() setting.

Returns:

string

extractSettings() → returns a dict of the project's settings.     @return: dict

framerate() → project's default framerate for new sequences

Returns:

TimeBase

guid()

heroView() → Get the name of the hero view set on the project

Returns:

str

isLocalisationEnabled() → return whether localisation is enabled

Returns:

whether localisation is enabled

isNull() → returns False if this is a valid Project object, True otherwise.

Returns:

True or False

isRestricted() → returns whether or not access to the project is restricted.

Returns:

True or False

kAllProjects = 0

kProjectOpenDontAddToRecent = core.Hiero.Python.Project.OpenFlags.kProjectOpenDontAddToRecent

kProjectOpenNoFlags = core.Hiero.Python.Project.OpenFlags.kProjectOpenNoFlags

kProjectOpenStartup = core.Hiero.Python.Project.OpenFlags.kProjectOpenStartup

kProjectSaveAsShowFileDialog = core.Hiero.Python.Project.SaveFlags.kProjectSaveAsShowFileDialog

kProjectSaveDontAddToRecent = core.Hiero.Python.Project.SaveFlags.kProjectSaveDontAddToRecent

kProjectSaveDontChangeProjectPath = core.Hiero.Python.Project.SaveFlags.kProjectSaveDontChangeProjectPath

kProjectSaveKeepName = core.Hiero.Python.Project.SaveFlags.kProjectSaveKeepName

kProjectSaveNoFlags = core.Hiero.Python.Project.SaveFlags.kProjectSaveNoFlags

kStartupProjects = 2

kUserProjects = 1

lutSetting16Bit() → returns the project's 16 bit lut setting name.

Returns:

string

lutSetting8Bit() → returns the project's 8 bit lut setting name.

Returns:

string

lutSettingFloat() → returns the project's float lut setting name.

Returns:

string

lutSettingLog() → returns the project's log lut setting name.

Returns:

string

lutSettingMonitorOut() → returns the project's Monitor Out lut setting name.

Returns:

string

lutSettingThumbnail() → returns the project's Thumbnail lut setting name.

Returns:

string

lutSettingViewer()

self.lutSettingsViewer() -> returns the project’s viewer lut setting name.

Returns:

string

lutSettingWorkingSpace() → returns the project's Working Space lut setting name.

Returns:

string

lutUseOCIOForExport() → returns the project setting for using OCIO in nuke script export.

Returns:

bool

modifiedSinceLastSave() → Check if the project has been modified since it was last saved

name() → returns the name of the project.

Returns:

string

ocioConfigName() → returns the ocio config name loaded by NukeStudio. When using a custom ocio config an empty string is returned.

Returns:

string

ocioConfigPath() → returns the project settings for the ocio config path.

Returns:

string

outputFormat() → gets project's default outputFormat for new sequences.

Returns:

Format

path() → returns the path to the project.

Returns:

string

posterFrameSettings() → Get the poster frame settings used for clips added to the project.

Returns:

tuple of poster frame setting and custom frame number

projectDirectory() → Get the project directory used for resolving relative paths and the exportRootDirectory() (if useCustomExportDirectory() is False).

Parameters:

expanded – whether expressions in the path are expanded

Returns:

string

projectRoot()

[DEPRECATION WARNING] hiero.core.Project.projectRoot() will be removed in Nuke 12, use exportRootDirectory() instead. self.projectRoot() -> Get root path of the project used for exports by default.

Returns:

string

redo() → triggers a redo of the next item in the redo stack. Only works on the main thread. If called from any other thread, throws an exception.

redoItemText() → returns the text of the next item on the redo stack. Only works on the main thread. Can be useful for testing that undo/redo works.

Returns:

string

save() → saves a previously saved project to disk.

saveAs(filename) → saves the project to the path specified by the filename parameter. Throws an exception if the project couldn't be saved for any reason.

Parameters:

filename – path to save the project to

sequences(partialName) → returns all sequences in a project. User can filter by by partial name.

Parameters:

partialName – optional string with partial name to match against. Will match if this string is anywhere in the name.

Returns:

an array of hiero.core.Sequence objects.

Example: finds all sequences in a project with 30Sec in the name:

sequences = myProject.sequences(‘30Sec’)

setCustomExportDirectory() → Set the custom directory used for exports if useCustomExportDirectory() is set to True.

Parameters:

path – path

setDeletable(deletable) → sets whether or not a project can be deleted.

Parameters:

deletable – True or False

setEditable(editable) → sets whether or not a project can be edited.

Parameters:

editable – True or False

setFramerate(TimeBase) → sets project's default framerate for new sequences.This will persist when the application is restarted

Param:

TimeBase

setHasMigratedSequenceProperties() → Mark the project as having had deprecated sequence properties converted into soft effects.

setLocalisationEnabled() → set whether localisation is enabled. This will persist when the application is restarted.

Parameters:

isEnabled – whether localisation should be enabled

setModified() → Set the project as modified even if just saved or loaded

setOcioConfigPath(path) → set the ocio config for the project

setOutputFormat(Format) → sets project's default output format for new sequences.

setOutputFormat(width, height, pixelAspect, name) → sets project's default output format for new sequences. This will persist when the application is restarted

Parameters:

• width – width for the output format

• height – height for the output format

• pixelAspect – float for pixel aspect ratio

• name – string for the format name

setPath(path) → set the path a project saves to without saving it

setPosterFrameSettings() → Set the poster frame settings used for clips added to the project.

Parameters:

• setting – the mode for setting poster frames

• customFrame – the frame number if mode is set to ePosterFrameCustom

setProjectDirectory(string) → Set the project directory used for resolving relative paths and the exportRootDirectory() (if useCustomExportDirectory() is False).

Parameters:

path – the path or expression to set

setProjectRoot()

[DEPRECATION WARNING] hiero.core.Project.setProjectRoot() will be removed in Nuke 12, use setProjectDirectory() or setCustomExportDirectory() instead. self.setProjectRoot() -> Set root path of the project used for exports by default.

Parameters:

path – to set as project root

setShotPresetName() → set the name of Shot Preset which is usedwhen sending to nuke or creating a comp.

Parameters:

name –

setShowViewColors() → Set if colors set for views are shown in the UI.

setStartTimecode(Time) → sets project's default start timecode for new sequences. This will persist when the application is restarted

Parameters:

startTime – TimeBase start timecode for sequence

setTimeDisplayFormat() → sets project's default displayType for new sequences.  This will persist when the application is restarted

Parameters:

displayType – DisplayType to use

setTrackItemVersionsLinkedToBin(linked) → Set whether track item versions are linked by default

setUseCustomExportDirectory() → Set if the export root directory should be a custom directory, or use the project directory.

Parameters:

custom –

setViews(views) → Set the project's views.

Parameters:

views – this can be either a list of view names, or a list of tuples with (name, color)

setViewsForStereo() → Replaces the project's views with two views named "left" and "right".

shotPresetName() → get the name of Shot Preset which is usedwhen sending to nuke or creating a comp.

Returns:

string

showViewColors() → Get if colors set for views are shown in the UI.

startTimecode() → gets project's default start frame for new sequences.

Returns:

Time

tagsBin() → returns the bin object containing the top level tags for this project.

Returns:

hiero.core.Bin object

timeDisplayFormat() → gets project's default displayType for new sequences. @return: DisplayType

toString() → returns a description of the object. Equivalent to str(object).

Returns:

string

trackItemVersionsLinkedToBin() → Get whether track item versions are linked by default

trackItems(partialName) → returns all track items in a project.

Parameters:

partialName – optional string with partial name to match against. Will match if this string is anywhere in the name.

Returns:

an array of hiero.core.TrackItem objects.

Example: finds all track items in a project with 30Sec in the name:

trackItems = myProject.trackItems(‘30Sec’)

tracks(partialName) → returns all tracks in a project.

Parameters:

partialName – optional string with partial name to match against. Will match if this string is anywhere in the name.

Returns:

an array of hiero.core.VideoTrack and hiero.core.AudioTrack objects.

Example: finds all tracks in a project with 30Sec in the name:

tracks = myProject.tracks(‘30Sec’)

undo() → triggers an undo on the last item previously added to the undo stack. Only works on the main thread. If called from any other thread, throws an exception.

undoItemText() → returns the text of the last item on the undo stack. Only works on the main thread. Can be useful for testing that undo/redo works.

Returns:

string

useCustomExportDirectory() → Get if the export root directory should be a custom directory, or use the project directory.

Returns:

bool

static useOCIOEnvironmentOverride() → returns whether the OCIO config has been overriden in the environment.

Returns:

bool

videoTrackItems(partialName) → returns all video track items in a project.

Parameters:

partialName – optional string with partial name to match against. Will match if this string is anywhere in the name.

Returns:

an array of hiero.core.TrackItem objects.

Example: finds all video track items in a project with 30Sec in the name:

trackItems = myProject.videoTrackItems(‘30Sec’)

videoTracks(partialName) → returns all video tracks in a project.

Parameters:

partialName – optional string with partial name to match against. Will match if this string is anywhere in the name.

Returns:

an array of hiero.core.VideoTrack objects.

Example: finds all video tracks in a project with 30Sec in the name:

tracks = myProject.videoTracks(‘30Sec’)

views() → Returns a list of this project's views.

Returns:

list of strings

viewsAndColors() → Returns a list of this project's views and corresponding colors.

Returns:

list of (str, PySide2.QtGui.QColor) tuples

class hiero.core.ReformatState

Object representing a the reformatting settings for a track item. This corresponds to the Nuke ‘Reformat’ node.

boxForceShape() → returns the box 'force shape' flag.

Returns:

bool

boxPAR() → returns the box pixel aspect ratio.

Returns:

double

boxSize() → returns the box size.

Returns:

QSize

isNull()

originalResizeFlip() → returns the original resize flip flag, which may be a deprecated value if it was loaded from an old project.

Returns:

bool

originalResizeFlop() → returns the original resize flop flag, which may be a deprecated value if it was loaded from an old project.

Returns:

bool

originalResizeTurn() → returns the original resize turn flag, which may be a deprecated value if it was loaded from an old project.

Returns:

bool

originalType() → returns the original reformat type of the state, which may be a deprecated value if it was loaded from an old project.

Returns:

string

resizeCenter() → returns the resize center flag.

Returns:

bool

resizeFlip() → returns the resize flip flag. Note: the flip option has been removed, this method should not be called.

Returns:

bool

resizeFlop() → returns the resize flop flag. Note: the flop option has been removed, this method should not be called.

Returns:

bool

resizeTurn() → returns the resize turn flag. Note: the turn option has been removed, this method should not be called.

Returns:

bool

resizeType() → returns the resize type.

Returns:

string

scale() → returns the scaling factor. Note: the scale option has been removed, this method should not be called.

Returns:

double

setBoxForceShape() → sets the box 'force shape' flag if the reformat type is set to 'to box'.

Parameters:

setBoxForceShape – bool

setBoxPAR() → sets the box pixel aspect ratio if the reformat type is set to 'to box'.

Parameters:

PAR – double

setBoxSize() → sets the box size if the reformat type is set to 'to box'.

Parameters:

size – QSize

setResizeCenter() → sets the resize center flag on the track item.

Parameters:

center – bool

setResizeFlip() → the flip option has been removed, this method exists only for compatibility reasons

setResizeFlop() → the flop option has been removed, this method exists only for compatibility reasons

setResizeTurn() → the turn option has been removed, this method exists only for compatibility reasons

setResizeType() → sets the resize type of the state.

Parameters:

newResizeType – string

setScale() → the scale option has been removed, this method exists only for compatibility reasons

setType() → sets the reformat type of the state.

Parameters:

newType – string

toString() → returns a description of the object. Equivalent to str(object).

Returns:

string

type() → returns the reformat type of the state.

Returns:

string

class hiero.core.RenderProgressObserver

Observer for tracking the progress of renders on the frame server.

isNull()

updateProgress() → called on progress of frame renders

Parameters:

progressList – list of lists containing [filePath, frame, progress]

class hiero.core.RenderTaskPreset(taskType, name, properties)

RenderTaskPreset is a specialization of the TaskPreset which contains parameters associated with generating Nuke render output.

static AllViews()

Get the special cased value for all on the views knob

addCustomResolveEntries(self, resolver)

RenderTaskPreset adds specialized tokens specific to this type of export, such as {ext} which returns the output format extension.

Parameters:

resolver – ResolveTable object

codecName()

codecProperties()

codecSettings()

extension()

summary()

Called by Hiero to get a summary of the preset settings as a string.

class hiero.core.ResolveTable

Used to store name/value pairs that can be resolved in strings. Example: Assuming the resolve table has an item “{filename}” that resolves to example.mov, Then calling resolveTable.resolve(taskObject, “someprefix_{filename}”) will return “someprefix_example.mov” To use, create an object, call addResolver on it with whatever key/value pairs you want, and then you can call resolve on the object to resolve a string. You can also merge two ResolveTable objects, replacing existing key’s with those in the ResolveTable passed in. And you can use functions to do the resolve. These take one parameter, the task that the resolve is applying to. For an example of how to use this, see FnExporterBase.py.

class CallbackItem(name, description, resolver)

description()

name()

resolve(task)

class StringItem(name, description, value=None)

description()

name()

resolve(task)

addEntriesToExportStructureViewer(viewer)

addResolver(name, description, resolver)

duplicate()

entries()

entryCount() → returns the number of entries in this resolver.

entryDescription(index) → returns a description of the item, which can be used to populate a dialog to the user when they are picking keywords.

entryName(index)

self.entryCount(index) -> returns the name of the entry based on the index.

merge(resolver)

pathSensitiveReplace(initialString, findValue, replaceValue, isPath)

resolve(task, value, isPath=False)

class hiero.core.Sequence

Object for Sequences.

addClip(clip, time, videoTrackIndex=0, audioTrackIndex=- 1)

Add a clip to a sequence, creating a TrackItem for each video/audio channel in the clip, adding them to the appropriate tracks and linking them together. This has the same effect as dragging a clip from the Bin View to the Timeline View in the Hiero UI.

Parameters:

• clip – the clip to add

• time – the in time for created track items

• videoTrackIndex – index of the video track to add items to if the clip has video

• audioTrackIndex – index of the audio track to start adding items to if the clip has audio

Returns:

list of created hiero.core.TrackItems

addToNukeScript(self, script)

Parameters:

• script – Nuke script object to add nodes to.

• includeRetimes – True/False include retimes

• retimeMethod – “Motion”, “Blend”, “Frame” - Knob setting for OFlow retime method

• additionalNodesCallback – callback to allow custom additional node per item function([Clip|TrackItem|Track|Sequence])

• offset – Optional, Global frame offset applied across whole script

• skipOffline – If True, offline clips are not included in the export

• mediaToSkip – List of MediaSources which should be excluded from the export

• disconnected – If True, tracks other than that containing the masterTrackItem are not connected to any inputs

• masterTrackItem – Used for controlling the script output if disconnected is specified

• includeAnnotations – If True, annotations are included in the exported script

• includeEffects – If True, soft effects are included in the exported script

• outputToFormat – Format to use for output. If not specified, the sequence’s own format is used.

Returns:

None

Add nodes representing this Sequence to the specified script. If there are no clips in the Sequence, nothing is added.

addTrack(track) → adds a video or audio track to the Sequence.

Parameters:

track – video or audio track to add

audioTrack(index) → returns the audio track for the specified index.

Parameters:

index – index of the audio track to return

Returns:

hiero.core.AudioTrack

audioTracks() → returns a tuple with all of the audio tracks.

Returns:

tuple of hiero.core.AudioTrack objects

changeFramerateKeepFrames(toTimebase) → changes the timebase of the sequence, keeping frames of track items the same

Parameters:

toTimebase – timebase to change to

changeFramerateKeepTimecodes(toTimebase, roundingMode) → changes the timebase of the sequence, keeping timecodes of track items the same, according to the specified rounding mode

Parameters:

• toTimebase – timebase to change to

• roundingMode – rounding mode to use when converting timebases (hiero.core.TimeBase.kRoundNearest, hiero.core.TimeBase.kRound32Pulldown)

clone() → returns a deep copy of this object.

Returns:

hiero.core.Sequence object

WARNING - DEPRECATED ( clone ): This method is deprecated and will not be present in future versions of the Python API. This method has been replaced by copy().

copy() → returns a deep copy of this object.

Returns:

hiero.core.Sequence object

deserialize() → restore the sequence state from XML data

Parameters:

• rangeMin – The beginning of the timeline range effected by this change

• rangeMax – The end of the timeline range effected by this change

guid()

importTracks(filePath) → imports all of the tracks from the file specified by the filePath argument.

Parameters:

filePath – path to the file to import tracks from

Return tracks:

tuple of created tracks

importTracksFromTimeBaseKeepFrames(filePath, srcTimebase) → imports all of the tracks from the file specified by the filePath argument using the specified timebase.

Parameters:

• filePath – path to the file to import tracks from

• srcTimebase – timebase to use when reading the source file

Return tracks:

tuple of created tracks

importTracksFromTimeBaseKeepTimecodes(filePath, srcTimebase, roundingMode) → imports all of the tracks from the file specified by the filePath argument using the specified timebase.

Parameters:

• filePath – path to the file to import tracks from

• srcTimebase – timebase to use when reading the source file

• roundingMode – rounding mode to use when converting timebases (hiero.core.TimeBase.kRoundNearest, hiero.core.TimeBase.kRound32Pulldown)

Return tracks:

tuple of created tracks

items() → returns a tuple with all of the video tracks concatenated with all of the audio tracks. Can iterate over the video tracks first by using self.numVideoTracks. The audio tracks follow the video tracks in the tuple returned from this method.

Returns:

tuple of hiero.core.VideoTrack and hiero.core.AudioTrack objects

matchMedia(path) → match media using the current rule configuration in hiero.core.conformer().

Parameters:

path – path to the folder with the media to connect

numAudioTracks() → returns number of audio tracks contained by this sequence.

Returns:

int

numVideoTracks() → returns number of video tracks contained by this sequence.

Returns:

int

reconnectMedia(path) → For each of the Clips used by this Sequence, reconnects media found in the specified path.

Parameters:

path – path containing media to reconnect to

removeTrack(track) → removes the track from the Sequence.

Parameters:

track – track to remove (hiero.core.AudioTrack or VideoTrack object)

replaceClips(path) → For each of the TrackItems in this sequence, replace it's Clip with media found in the specified path.

Parameters:

path – path containing media to replace with

serialize() → serialize the sequence object to XML

trackItemAt(time) → returns the top-most video track item for the specified time that is enabled and has media.

Parameters:

time – frame to get the trackitem for

Returns:

hiero.core.TrackItem

trackItemsAt(time, mediaType) → finds enabled track items for the specified time, ordered from top-track to bottom-track (or for audio, min channel to max channel).

Parameters:

• time – frame to get the trackitems for

• mediaType – TrackItem.MediaType value specifying the media type of the track items to look for (defaults to kVideo)

Returns:

tuple of hiero.core.TrackItem objects

videoTrack(index) → returns the video track for the specified index.

Parameters:

index – index of the video track to return

Returns:

hiero.core.VideoTrack

videoTracks() → returns a tuple with all of the video tracks.

Returns:

tuple of hiero.core.VideoTrack objects

class hiero.core.SequenceBase

Base class for Sequence and Clip objects. Has some methods common to both of those objects. Most likely never used directly.

addTag(tag) → adds a hiero.core.Tag object to the Clip or Sequence.

Parameters:

tag – the tag object to add

Returns:

hiero.core.Tag object

addTagToRange(tag, inTime, outTime) → adds a hiero.core.Tag object to the specified range of the Clip or Sequence.

Parameters:

• tag – the tag object to add

• inTime – the first time at which the tag is valid

• outTime – the last time at which the tag is valid

Returns:

hiero.core.Tag object

binItem() → returns the parent BinItem this Sequence or Clip belongs to, if any.

Returns:

BinItem

clearInTime(t) → clear the 'in' point for the clip to Time t.

Returns:

None

clearOutTime()

self.clearInTime(t) -> clear the ‘out’ point for the clip to Time t.

Returns:

None

clearRange(start, end, ripple) → Clears a time range out of the sequence; effectively a razor on any clips straddling the start and end, and a delete of everything else.

Parameters:

• start – the start of the range to clear

• end – the end of the range to clear

• ripple – set to True to shift the remaining track items to the left

disableSoftTrims() → disables soft trims on the object.

dropFrame() → get whether sequence timecode is displayed in drop frame format

duration() → returns the duration of the Clip or Sequence.

Returns:

int time value

editFinished(trackItems) → this should be called after finishing editing the sequence to ensure that its internal state is updated properly and to send a signal to all objects listening to changes in this object (e.g. UI views).This function optionally takes a list of track items that is used to selectively rebuild only those sections of the timeline.This allows a faster update when the edited track items are known.

Parameters:

trackItems – optional, the track items to be updated

enableSoftTrims(inTime, outTime) → enables soft trims on the object.

Parameters:

• inTime – Time - soft trim in time

• outTime – Time - soft trim out time

format() → returns the output Format object for this Sequence or Clip.

Returns:

hiero.core.Format object

framerate() → returns the framerate of the Sequence or Clip.

Returns:

hiero.core.TimeBase object

getAnnotationsTrack() → Returns the annotations track for the Clip or Sequence. If one does not already exist, it will be created.

inOutEnabled() → Checks if the 'in' and 'out' points are enabled in the Sequence or Clip.

Returns:

bool

inTime() → returns the 'in' point set on the clip.

Returns:

frame

isNull() → returns False if this is a valid Sequence or Clip object, True otherwise.

Returns:

True or False

metadata() → returns a collection of metadata for the object.

Returns:

hiero.core.DataCollection object

name() → returns the name of the object.

Returns:

string

outTime() → returns the 'out' point set on the clip.

Returns:

frame

posterFrame() → get the frame in the sequence used for thumbnails

project() → returns the Project object that this is attached to, or None if the object is not attached to a project.

Returns:

hiero.core.Project object

rawView() → returns a string representing the raw view of this sequence or clip.

Returns:

string

razorAt(time) → Creates razor cuts on all of the unlocked tracks for the parameter time(s).

Parameters:

time – if a single (integer) value, indicates the razor cut time; if a tuple or list of integer values, then the times to create multiple cuts at

refreshInOutEnabled() → Automatically set the sequence in/out enabled based on the current in/out values.

Returns:

None

removeTag(tag) → removes the tag from the track.

Parameters:

tag – hiero.core.Tag object

setDropFrame(drop) → set whether sequence timecode is displayed in drop frame format

setFormat(format) → set the format of the Sequence or Clip.

Parameters:

format – a hiero.core.Format object to set for the Clip or Sequence.

Example: myClipSequence.setFormat( hiero.core.Format(2048, 400, 2.37, ‘MyFormat’) )

setFramerate(framerate) → set the framerate of the Sequence or Clip.

Parameters:

framerate – framerate value to set

setInOutEnabled(enable) → Enable/Disable the 'in' and 'out' points.

Returns:

None

setInTime(t) → set the 'in' point for the clip to Time t.

This will also enable the In/Out lock.

Returns:

None

setName() → set the name of the object.

Param:

string new name

setOutTime(t) → set the 'out' point for the clip to Time t.

This will also enable the In/Out lock.

Returns:

None

setPosterFrame(frame) → set the frame in the sequence used for thumbnails

setSoftTrimsInTime(inTime) → sets the in time for the soft trims. Note: this method does not enable soft trims if they are disabled.

Parameters:

inTime – in frame value for the soft trims

setSoftTrimsOutTime(outTime) → sets the out time for the soft trims. Note: this method does not enable soft trims if they are disabled.

Parameters:

outTime – out frame value for the soft trims

setTimecodeStart(time) → sets the value of the start timecode by frame. To convert times to frame values, use TimeCode.HMSFToFrames or TimeCode.stringToTime.

setTimecodeStart(timecodeValue, hasDropFrames) → sets the value of the start timecode by formatted string, using the framerate of the Sequence or Clip as the time base. If just passing in a framerate, pass it in as an integer.

Parameters:

• time – frame value to set the time code to

• timecodeValue – string of the format “hh:mm:ss:ff”

• hasDropFrames – True if the timecode includes drop frames, False otherwise

softTrimsEnabled() → returns True if soft trims are enabled, False otherwise.

Returns:

True or False

softTrimsInTime() → returns the in time set for the soft trims.

Returns:

frame

softTrimsOutTime() → returns the out time set for the soft trims.

Returns:

frame

tags() → returns a tuple of all of the tags applied to this object.

Returns:

tuple of hiero.core.Tag objects

thumbnail(frame, layer) → returns a thumbnail of the frame specified as a QImage object.

Parameters:

• frame – the frame to get the thumbnail for (defaults to 0)

• layer – the layer to get the thumbnail for (defaults to colour)

Returns:

QImage object

timecodeStart() → returns the frame value of the start timecode. To convert this to a time code string, use TimeCode.timeToString.

Returns:

frame

timelineOffset() → returns the timeline offset value.

Returns:

frame

toString() → returns a description of the object. Equivalent to str(object).

Returns:

string

writeAudioToFile() → Bounce down audio tracks and write to wav file at specified location. File will be created or overwritten.

Parameters:

• filepath – the filepath of file to be written

• inTime – in point of the timeline to write

• outTime – out point of the timeline to write

• numChannels – number of audio channels

• sampleRate – the sample rate to export to

• bitDepth – sample bit depth (PCM only)

• bitRate – audio bitrate in bits (compressed formats only)

class hiero.core.Snapshot

Object representing a snapshot of a sequence or clip. Can be created with a Clip or a Sequence object.

comment() → returns the comment set on this snapshot object.

Returns:

string

isNull() → returns True if the object is invalid, False otherwise.

Returns:

True or False

item() → returns the clip or sequence stored with this snapshot.

Returns:

hiero.core.Clip or hiero.core.Sequence object

name() → returns the name of this snapshot.

Returns:

string

setComment(comment) → sets the comment on this snapshot object.

Parameters:

comment – string to set the comment to

Returns:

string

toString() → returns a description of the object. Equivalent to str(object).

Returns:

string

class hiero.core.SubTrackItem

Base class for items that exist in sub-tracks, e.g. Annotation objects. This class should never be used directly.

descString()

setTimelineIn(inTime) → sets the in point for this SubTrackItem. Note that this trims the duration of the SubTrackItem.

Parameters:

inTime – frame for the new in point

setTimelineOut(outTime) → sets the out point for this SubTrackItem. Note that this trims the duration of the SubTrackItem.

Parameters:

outTime – frame for the new out point

subTrackIndex() → get the index of the item's parent sub-track.

Returns:

int index, -1 if the item has not been added to a track

toString() → returns a description of the object. Equivalent to str(object).

Returns:

string

class hiero.core.Tag

Object representing a tag in Hiero. Can be created with a string name, an optional path to an icon and an optional editable (in gui) boolean parameter

copy()

guid() → Return the Tag guid.

Returns:

object guid as string

icon() → returns the tags icon path.

If the file doesn’t exist, it will search for it in the plugin paths and the project folder and return the located file.

Returns:

string

inTime() → returns the in time of the tag.

Returns:

frame

isNull() → returns True if the tag is invalid, False otherwise.

Returns:

True or False

metadata() → returns the clip's metadata.

Returns:

hiero.core.DataCollection object

name() → returns the label of the tag.

Returns:

string

note() → returns the note on the tag.

Returns:

string

outTime() → returns the out time of the tag.

Returns:

frame

parentBin()

project() → returns the Project object that this is attached to, or None if the object is not attached to a project.

Returns:

hiero.core.Project object

serialize()

setIcon() → sets the icon on the tag.

Parameters:

note – path to icon file

setInTime(time) → set the in time of the tag.

Parameters:

time – the in time

setName() → sets the name label of the tag.

Parameters:

name – name to assign to tag

setNote() → sets the note on the tag.

Parameters:

note – string note to assign to tag

setOutTime(time) → set the out time of the tag.

Parameters:

time – the out time

setVisible() → sets the visibility of the tag.

Parameters:

visible – visibility state

syncName(name) → set the name of the tag without sending additional notifications.

toString() → returns a description of the object. Equivalent to str(object).

Returns:

string

visible() → gets the visibility state of the tag.

Returns:

bool

class hiero.core.TaskBase(initDictionary)

TaskBase is the base class from which all Tasks must derrive.

addToQueue(self)

Called by the processor in order to add the Task to the ExportQueue If derrived classes impliment this function, this base function must be called.

Populates name, description and destination fields in the export queue

availableOutputHandles()

Get the available output handles, based on self._cutHandles. If outputting to sequence time, the start handle is clamped to prevent going into negative frames.

clipName(self)

Returns the name of the clip in the bin

deleteTemporaryFile(filePath)

Delete a file which is an artifact of the export, but should be removed after it’s finished. Returns whether the file was successfully deleted.

editId(self)

Returns a str containing the id of this edit. See hiero.core.TrackItem.eventNumber().

edlEditId(self)

Returns the id taken from the EDL used to create this edit, if there was one.

fileName()

filename(self) Returns the source items filename if applicable

filebase(self)

Returns the source items file path less extension if applicable

fileext(self)

Returns the source items file extention if applicable

filehead(self)

Returns the source filename excluding image sequence frame padding and extension, if applicable

filepadding(self)

Returns the padding used in source file if an image sequence, empty string otherwise

filepath(self)

Returns the source file path, if applicable

finishTask()

Called once Task has signaled completion. Sub-classes should call this base implementation.

hasValidItem()

Get if the task is able to run on the item it was initialised with.

ident(self)

Returns a string used for identifying the type of export task

inputRange()

Returns the input frame range (as a tuple) for this task if applicable

Param:

ignoreHandles - If True calculate Input Range excluding export handles

Param:

ignoreRetimes - If True calculate Input Range without taking retimes into account

Param:

clampToSource - If True the input range will be clamped to the available media range

isExportingItem(item)

Check if this task is already including an item in its export. Used for preventing duplicates when collating shots into a single script.

name()

outputHandles(ignoreRetimes=False)

Return a tuple of the in/out handles generated by this task. Handles may be cropped such as to prevent negative frame indexes. Note that both handles are positive, i.e. if 12 frames of handles are specified, this will return (12, 12) Sub-classes should reimplement _outputHandles() rather than this method.

Returns:

(in_handle, out_handle) tuple

outputRange()

Returns the output file range (as tuple) for this task, if applicable. This default implementation works if the task was initialised with a Clip or TrackItem

outputSequenceTime()

Test if the output frame range should be in sequence time rather than source. This only applies when a TrackItem is being exported.

NOTE: This option has been disabled for the time being. The code is left in place in case we want to re-enable it, but it is not available to users.

postSequence()

preSequence() This function serves as hook for custom scripts to add functionality on completion of exporting the contents of the sequence

preSequence()

This function serves as hook for custom scripts to add functionality before a task starts exporting anything with the sequence

printState()

Print summary of the task parameters

progress()

Returns a float value 0..1 to indicate progress of task. The task is considered complete once the progress is reported as 1.

projectName(self)

Returns the name of the project, used for resolving the {project} token)

projectRoot(self)

Returns the project root export path, used for resolving the {projectroot} token

resolvePath(path)

Replace any recognized tokens in path with their current value.

resolvedExportPath()

returns the output path with and tokens resolved

sequenceName(self)

Returns the name of the sequence or parent sequence (if exporting a track item)

setError(desc)

setError(self, desc) Call to set the state of this task to error, with a description of the error. If the task is synchronous, raise exception

shotName(self)

Returns the Tasks track item name

shotNameIndex(self)

Returns the index string for the shot, if there are multiple shots with the same name on the sequence.

startTask()

Called when task reaches head of the export queue and begins execution

supportedType(item)

Interface for defining what type of items a Task Supports. Return True to indicate item is of supported type

taskStep()

Called every frame until task completes. Return True value to indicate task requires more steps. Return False value to indicate synchronous processing of the task is complete. The task may continue to run in the background.

timeStamp(self)

Returns the datetime object from time of task creation

timeStampString(localtime)

Convert a tuple or struct_time representing a time as returned by gmtime() or localtime() to a string formated YEAR/MONTH/DAY TIME.

trackName(self)

Returns the name of the parent track

updateItem(originalItem, localtime)

updateItem - This is called by the processor prior to taskStart, crucially on the main thread.

This gives the task an opportunity to modify the original item on the main thread, rather than the clone.

validate()

Check that the task is in a state that allows it to be executed. Should raise an exception if there is an error. The default implementation checks if the task can be used with a multi-view project.

versionString(self)

Returns the version string used to resolve the {version} token

views()

Get the view names used by the task. Tasks which support exporting from multi-view projects should reimplement this to return a non-empty list.

class hiero.core.TaskData(preset, item, exportRoot, shotPath, version, exportTemplate, project, cutHandles=None, resolver=None, retime=False, startFrame=None, startFrameSource=None, submission=None, skipOffline=True, presetId=None, shotNameIndex='', mediaToSkip=[])

TaskData is used as a seed for creating classes, wrapping up all of the parameters and making it simpler to add new ones

kCutHandles = 'cutHandles'

kExportRoot = 'exportRoot'

kExportTemplate = 'exportTemplate'

kItem = 'item'

kMediaToSkip = 'mediaToSkip'

kPreset = 'preset'

kPresetId = 'presetId'

kProject = 'project'

kResolver = 'resolver'

kRetime = 'retime'

kShotNameIndex = 'shotNameIndex'

kShotPath = 'shotPath'

kSkipOffline = 'skipOffline'

kStartFrame = 'startFrame'

kStartFrameSource = 'startFrameSource'

kSubmission = 'submission'

kVersion = 'version'

class hiero.core.TaskGroup

TaskGroup is a Task which maintains a list of child Tasks.

addChild(child)

Add a child to the list.

addToQueue() → adds this task into the task queue.

children()

Get the TaskGroup’s children.

getLeafTasks()

Get a list of all leaf tasks recursively, i.e. those with no child tasks.

progress()

Get the group progress. Returns a value based on the progress of child tasks.

class hiero.core.TaskPreset(parentType, presetName)

Deprecated - Use TaskPresetBase

class hiero.core.TaskPresetBase(parentType, presetName)

TaskPreset is the base class from which all Task Presets must derrive The purpose of a Task Preset is to store and data which must be serialized to file and shared between the Task and TaskUI user interface component

addCustomResolveEntries(self, resolver)

Impliment this function on custom export tasks to add resolve entries specific to that class.

Parameters:

resolver – ResolveTable object

addDefaultResolveEntries(self, resolver)

Create resolve entries for default resolve tokens shared by all task types.

Parameters:

resolver – ResolveTable object

addUserResolveEntries(self, resolver)

Override this function to add user specific resolve tokens. When adding task specific tokens in derrived classes use TaskBase.addCustomResolveEntries(). This is reserved for users to extend the available tokens.

Parameters:

resolver – ResolveTable object

createResolver(self)

Instantiate ResolveTable, add default and custom resolve entries return ResolveTable object

getResolveEntryCount(self) (DEPRICATED)

Return the number of resolve entries in the resolve table

ident(self)

Returns a string used for identifying the type of task

initialiseCallbacks(exportStructure)

When parent ExportStructure is opened in the ui, initialise is called for each preset. Register any callbacks here.

isDeprecated()

Determines whether the preset is deprecated. Any configuration that is deprecated should be tested here.

markedForDeletion()

Return True if this preset is marked for deletion. Delete will be performed at save

name()

Return Preset Name

nonPersistentProperties()

Return the dictionary which contains properties not persisted within the preset. Properties which are only relevant during a single session.

Returns:

dict

parentType(self)

Returns a the parent Task type for this TaskPreset.

Returns:

TaskPreet class type

project()

Return the Project with which this preset is associated. If this is a local preset returns None

properties()

Return the dictionary which is used to persist data within this preset.

Returns:

dict

readOnly()

Return the read only flag for this preset

resolveEntryCount(self)

Return the number of resolve entries in the resolve table

resolveEntryDescription(self, index)

return ResolveEntry description by index

resolveEntryName(self, index)

return ResolveEntry name/token by index

savePath(self)

Return the path from which this preset was loaded. Will return None if this preset was not loaded from file

setCompsToRender(comps)

Set the list of comps to render.

setCompsToSkip(comps)

Set the list of comps to skip.

setMarkedForDeletion(markedForDeletion=True)

Set this preset as marked for deletion. Delete will be performed at save

setName(name)

Set Preset Name

setProject(project)

Set the Project() object which this preset is associated

setReadOnly(readOnly)

Set Read Only flag on preset, not enforced internally

setSavePath(self, path)

Set the save path of the preset in order to ensure it is saved to the path it was loaded from

setSkipOffline(skip)

skipOffline(bool) Set flag to skip offline TrackItems during export.

Parameters:

bool –

skipOffline()

Returns True if flag has been set to skip any offline TrackItems

Returns:

bool

summary()

Called by Hiero to get a summary of the preset settings as a string.

class hiero.core.TaskRegistry

addDefaultPresets(overwrite=False)

addPresetToProjectExportHistory(project, preset)

Add a preset to the export history for a project.

addProcessorPreset(name, preset)

Register Processor Preset Instance

addSubmission(name, submissionClass)

assignPresetToProject(preset, project)

Assign preset to project and ensure name is unique within project. Project may be None in which case preset will be assigned ‘local’

copyAndAddProcessorPreset() → Called by the C++ application to duplicate a preset.

Param:

hiero.core.TaskPreset instance for duplication

Returns:

new hiero.core.TaskPreset instance

copyAndAddProjectPreset(preset, project)

Duplicate a preset and assign it to a project imediately to prevent name clashes

copyPreset(preset)

Create a copy of a preset. The copy is not added to the registry.

createAndAddProcessorPreset(string, hiero.core.TaskPreset) → Called by the C++ application to create a new preset, using typetemplate as a template.

Param:

string - Preset name

Returns:

hiero.core.TaskPreset instance as type template

createAndExecuteProcessor(preset, items, submissionName=None, synchronous=False)

Instantiate the Processor associated with preset and startProcessing items

createProcessor(preset, submissionName=None, synchronous=False)

Create the processor for an export and return it. This doesn’t start the export.

createTaskFromPreset(preset, initDictionary)

discardPresetChanges(project)

self.startPresetChanges(hiero.core.Project) -> Discard any changes to the presets since startPresetChanges() was called.

Param:

hiero.core.Project)

findPresetInProjectExportHistory(project, presetId)

Attempt to find a preset in a project’s export history.

getPresetId(preset)

Get the id (hash) of the given preset.

getPresetType(ident)

getProcessor(index)

getProcessorFromPreset(presetName)

getProcessorPreset(index)

isNukeShotExportPreset(preset)

Check if a preset is valid for Nuke shot export. To be considered valid, the preset must contain a NukeShotExporter and a NukeRenderTask (write node).

isSingleSocketAllowed()

Return whether or not single socket exports are allowed.

loadPresets(path)

Load all xml presets within specified path and register

localPresets()

Returns a list of preset names NOT associated with the specified project

localPresetsChanged()

Check if the local task presets have changed since startPresetChanges() was called.

nukeShotExportPresets(project)

Get a list of presets which can export shots as Nuke scripts. Includes local presets and those in the project.

numProcessorPresets()

Return the total number of Processor preset instances registered

numProcessors()

Return the number or processors in the Registry

numTasks()

Returns the number of Tasks Registered

presetFromXml(xml, register=True)

Deserialize preset from xml string. Requires derived TaskPreset classes to be registered.

presetToXml(preset)

Serialise a TaskPreset to XML and return as string. Returns an empty string on failure.

presetTypeFromIdent(ident)

Resolve preset ident string to Preset class type

presetsSubDirectory() → Get the sub-directory in the plugin paths to search for presets.

processorByIndex(index)

Returns a processor by index

processorFromPreset(presetName)

Return type of task from preset name

processorName(index)

Returns a Processor name by index

processorPresetByIndex(index)

Return instance of TaskPreset Object

processorPresetByName(name, project=None)

Returns the preset with specified name associated with project. If project is None preset will be searched for in local presets

processorPresetName(index)

Return the name of Processor preset by index

processorPresetNames()

Returns a tuple of Processor Preset names

projectDuplicated(project, newProject)

Called on project clone to duplicate the associated project presets

projectExportHistoryXml(project)

Get the project export history as a list of xml fragments. Use the xml to avoid problems with reference counting the preset objects when calling from C++.

projectPresets(project)

Returns a list of preset names associated with the specified project

projectPresetsChanged(project)

Check if the task presets for the given project have changed since startPresetChanges(project) was called.

projectUnloaded(project)

Called on project unload to remove presets associated with project

registerPreset(parentType, preset)

Register a preset instance and association with parentType

registerProcessor(preset, processor)

Register the association between a Processor and ProcessorPreset

registerTask(preset, task)

Register the association between a Task and TaskPreset

removeProcessorPreset(preset)

Remove Processor preset from registry

renameProcessorPreset(preset, newName)

Validate and update name of Processor Preset

restoreProjectExportHistoryXml(project, presetsXml)

Set the project export history as a list of xml fragments. Use the xml to avoid problems with reference counting the preset objects when calling from C++.

revertDefaultPresets(string) → Called by the C++ application reconstruct the default presets.

Param:

path as string

savePresets(path)

Save all registered presets, as xml, to path specified.

setDefaultPresets(defaultPresets)

startPresetChanges(hiero.core.Project) → Called when the user might start editing the presets, so the changes can be reverted if necessary.

Param:

hiero.core.Project)

submissionByName(name)

submissionChanged(string, hiero.core.Project) → Called by the C++ application when the submission choice changes in the Export Dialog.

Param:

submission name as a string

submissionNames() → Called by the C++ application to get a list of the available Submission objects. Submission objects are used to manage render farm renders.

Returns:

list of name strings

taskName(index)

Returns a Task name by Index

validateExport(preset, items)

Implements IExporterRegistry.validateExport

class hiero.core.TimeBase

Helper object that wraps up time bases (or frame rates). Stores values internally as integer ratios, as opposed to floating point values.

Can be initialised with an int, float, or str. In addition, you can construct a TimeBase using TimeBase.fromRational(numerator, denominator), or use the predefined TimeBase values, for example TimeBase.k30NTSC.

class RoundingMode

kRound32Pulldown = core.Hiero.Python.TimeBase.RoundingMode.kRound32Pulldown

kRoundNearest = core.Hiero.Python.TimeBase.RoundingMode.kRoundNearest

name

values = {'kRound32Pulldown': core.Hiero.Python.TimeBase.RoundingMode.kRound32Pulldown, 'kRoundNearest': core.Hiero.Python.TimeBase.RoundingMode.kRoundNearest}

static convert(t, from, to) → returns the time specified by the first parameter converted from from parameter's time base into the to parameter's time base.

If either of the time bases is invalid, this method returns the t parameter unchanged.

Parameters:

• t – the time (frame) to convert from one rate to another

• from – the time base to convert from

• to – the time base to convert to

Returns:

integer

convertTime(t, toRate) → returns the time specified by the first parameter converted from this object's time base into the second parameter's time base.

If either of the time bases is invalid, this method returns the t parameter unchanged.

Parameters:

• t – the time (frame) to convert from one rate to another

• toRate – the new time time to convert to

Returns:

integer

denominator() → gets the denominator of the time base.

Returns:

int

static fromRational(numerator, denominator) → creates a new TimeBase object from the given parameters.

For example: newTimeBase = TimeBase.fromRational(25, 1) newTimeBase = TimeBase.fromRational(30000, 1001)

static fromString(str) → deprecated; a TimeBase can now be constructed directly from a str, e.g. TimeBase('30').  Construct a TimeBase object using a str as input.

For example:

newTimeBase = TimeBase.fromString(‘25’) newTimeBase = TimeBase.fromString(‘30000 / 1001’)

Returns:

TimeBase

isNTSC() → returns True if the time base is NTSC (24*1000/1001, 30*1000/1001, or 60*1000/1001).

Returns:

True or False

isValid() → returns True if the denominator of the time base is non-zero.

Returns:

True or False

k24 = 24

k24NTSC = 23.98

k25 = 25

k30 = 30

k30NTSC = 29.97

k50 = 50

k60 = 60

k60NTSC = 59.94

kRound32Pulldown = core.Hiero.Python.TimeBase.RoundingMode.kRound32Pulldown

kRoundNearest = core.Hiero.Python.TimeBase.RoundingMode.kRoundNearest

numerator() → gets the numerator of the time base.

Returns:

int

supportsDropFrames() → returns True if the time base supports drop frames (only true for 30 or 60 fps NTSC currently).

Returns:

True or False

toFloat() → returns the time base value expressed as a floating point value.

Returns:

float

toInt() → returns the time base value, rounded to the nearest integer.

Returns:

int

toRational() → returns a tuple of the numerator and the denominator of the time base.

Returns:

tuple of integers

toRationalString() → returns a string containing the time base expressed as a ratio, for example '30000/1001'.

Returns:

string

toString() → returns a string containing the time base as a floating point number. Equivalent to str(object).

Returns:

string

class hiero.core.Timecode

Helper module to convert back and forth between (frames and time bases) and time code values.

class DisplayType

kDisplayDropFrameTimecode = core.Hiero.Python.Timecode.DisplayType.kDisplayDropFrameTimecode

kDisplayFrames = core.Hiero.Python.Timecode.DisplayType.kDisplayFrames

kDisplayTimecode = core.Hiero.Python.Timecode.DisplayType.kDisplayTimecode

name

values = {'kDisplayDropFrameTimecode': core.Hiero.Python.Timecode.DisplayType.kDisplayDropFrameTimecode, 'kDisplayFrames': core.Hiero.Python.Timecode.DisplayType.kDisplayFrames, 'kDisplayTimecode': core.Hiero.Python.Timecode.DisplayType.kDisplayTimecode}

static HMSFToFrames(timeBase, dropFrame, h, m, s, f) → takes a timebase, whether or not it's got drop frames, an hour, minute, second and frame, and returns a time value.

Parameters:

• timeBase – the time base to use

• dropFrames – True if you want drop frames taken into account

• h – hour to use

• m – minute to use

• s – second to use

• f – frame to use

Returns:

frame

static displayTypeFromString(s) → guesses the display type from a timecode string. This can be inferred from separators (though not guaranteed) or if no separators than just display as frames.

Example: displayType = Timecode.displayTypeFromString(‘01:00:00:00’) print( displayType ) # prints out hiero.core.Timecode.kDisplayTimecode

displayType = Timecode.displayTypeFromString(‘01:00:00;00’) print( displayType ) # prints out hiero.core.Timecode.kDisplayDropFrameTimecode, because of the semi-colon (;)

Parameters:

s – string to detect time code format from

Returns:

hiero.core.Timecode.DisplayType enumeration

static framesToHMSF(time, timeBase, dropFrames) → takes a time, timebase and whether or not it's got drop frames, and returns a tuple of the hour, minute, second and frame.

Example: hour, minute, second, frame = Timecode.framesToHMSF(0, timeBase, True)

Parameters:

• time – the frame you want to get the time code for

• timeBase – the time base to use

• dropFrames – True if you want drop frames taken into account

Returns:

tuple of hour, minute, second, frame

kDisplayDropFrameTimecode = core.Hiero.Python.Timecode.DisplayType.kDisplayDropFrameTimecode

kDisplayFrames = core.Hiero.Python.Timecode.DisplayType.kDisplayFrames

kDisplayTimecode = core.Hiero.Python.Timecode.DisplayType.kDisplayTimecode

static stringToTime(s, timeBase, displayType, timecodeOffset) → returns a tuple of hour, minute, second, frame values.

Parameters:

• s – the string to convert

• timeBase – the time base to use

• displayType – how the string was formatted; can be (Timecode.kDisplayTimeCode, Timecode.kDisplayDropFrameTimecode, or Time.kDisplayFrames)

• timecodeOffset – an offset to apply before converting to a time code string

Returns:

tuple

static timeToString(time, timeBase, displayType, includeSign, timecodeOffset) → returns a string formatted as a time code.

Parameters:

• time – the frame to use

• timeBase – the time base to use

• displayType – how to format the returned string (Timecode.kDisplayTimeCode, Timecode.kDisplayDropFrameTimecode, or Time.kDisplayFrames)

• includeSign – if True, a ‘+’ will be put in front of positive time codes

• timecodeOffset – an offset to apply before converting to a time code string

Returns:

string

class hiero.core.TrackBase

Base class for VideoTrack and AudioTrack objects. This class should never be used directly.

Flags for controlling behavior when removing items, these can be combined with bitwise or:

TrackBase.eRemoveLinkedItems: removing an item will also remove any items it is linked to TrackBase.eDontRemoveLinkedItems: removing an item will not remove linked items TrackBase.eDontCollapseSubTracks: removing a sub-track item will not cause empty sub-tracks to be removed

class RemoveItemOptions

eDontCollapseSubTracks = core.Hiero.Python.TrackBase.RemoveItemOptions.eDontCollapseSubTracks

eDontRemoveLinkedItems = core.Hiero.Python.TrackBase.RemoveItemOptions.eDontRemoveLinkedItems

eRemoveLinkedItems = core.Hiero.Python.TrackBase.RemoveItemOptions.eRemoveLinkedItems

name

values = {'eDontCollapseSubTracks': core.Hiero.Python.TrackBase.RemoveItemOptions.eDontCollapseSubTracks, 'eDontRemoveLinkedItems': core.Hiero.Python.TrackBase.RemoveItemOptions.eDontRemoveLinkedItems, 'eRemoveLinkedItems': core.Hiero.Python.TrackBase.RemoveItemOptions.eRemoveLinkedItems}

addItem(item) → deprecated; use addTrackItem instead. Adds a track item to this track. Throws an exception if the item overlaps any existing items on the track.

Parameters:

item – the hiero.core.TrackItem to add to this track

Returns:

hiero.core.TrackItem object

addTag(tag) → adds the specified tag to the Track.

Parameters:

tag – Tag object to apply to the track

Returns:

a hiero.core.Tag object

addTransition(transition) → adds a transition to the timeline for the track.  Can only be called when the track has been added to a Sequence.

Note that a transition can only be added to a single track. Calling this function with a Transition object which already belongs to a Track will result in an error. Transition items can be reomoved from a track using the removeTransition function.

Parameters:

transition – the hiero.core.Transition to add to this track

Returns:

a hiero.core.Transition object

clearRange(start, end, ripple) → Clears a time range out of the track; effectively a razor on any clips straddling the start and end, and a delete of everything else.

Parameters:

• start – the start of the range to clear

• end – the end of the range to clear

• ripple – set to True to shift the remaining track items to the left

eDontCollapseSubTracks = core.Hiero.Python.TrackBase.RemoveItemOptions.eDontCollapseSubTracks

eDontRemoveLinkedItems = core.Hiero.Python.TrackBase.RemoveItemOptions.eDontRemoveLinkedItems

eRemoveLinkedItems = core.Hiero.Python.TrackBase.RemoveItemOptions.eRemoveLinkedItems

guid()

isEnabled() → returns True if the Track object is enabled.

Returns:

True or False

isLocked() → returns True if the Track object is locked.

Returns:

True or False

isNull() → returns True if the Track object is invalid.

Returns:

True or False

metadata() → returns the metadata for this Track.

Returns:

hiero.core.DataCollection object

name() → returns the name of the track. Identical to calling trackName().

Returns:

string

numItems() → returns the number of items in this track.

Returns:

int

numTransitions() → returns the number of transitions in this track.

Returns:

int

project() → returns the Project object that this item is attached to or None if the object is not attached to a project.

Returns:

hiero.core.Project object

razorAt(time) → Creates razor cuts on a track for the parameter time(s).

Parameters:

time – if a single (integer) value, indicates the razor cut time; if a tuple or list of integer values, then the times to create multiple cuts at

removeItem(trackItem, option=eRemoveLinkedItems) → removes a track item from this track.

Parameters:

• trackItem – the hiero.core.TrackItem to remove from this track

• option – options controlling the remove behavior. By default linked items are also removed. Note that if linked effects are not removed, this will put them in an invalid state.

removeTag(tag) → removes the tag from the track.

Parameters:

tag – tag object

removeTransition(transition) → removes a transition from the timeline of this track.

Parameters:

transition – the hiero.core.Transition to remove from this track’s timeline

setEnabled() → enables or disables the Track.

setLocked() → locks or unlocks the Track.

Returns:

True or False

setName() → Sets the name of a track.

Param:

string

tags() → returns a tuple of all of the tags applied to this object.

Returns:

tuple of hiero.core.Tag objects

toString() → returns a description of the object. Equivalent to str(object).

Returns:

string

trackIndex()

trackName() → returns the name of the track. Identical to calling name().

Returns:

string

transitions() → returns a tuple of all of the transitions applied to this track object.

Returns:

tuple of hiero.core.Transition objects

class hiero.core.TrackItem

Represents a specific item on a Track. Can also be created using the createTrackItem method on VideoTrack and AudioTrack objects. Can be converted to a MediaSource object if isSource() returns True, or a Sequence object if isSequence() returns True. Note that the version functions don’t cause a scan of any directories for other versions of media and will only skip to versions that have already been discovered. For an example of how to do that, see Plugins/site-packages/hiero/ui/ScanForVersions.py. For an example of how to implement custom versioning scheme, see Plugins/site-packages/hiero/core/versioning_example.py.

class MediaType

kAudio = core.Hiero.Python.TrackItem.MediaType.kAudio

kUnknown = core.Hiero.Python.TrackItem.MediaType.kUnknown

kVideo = core.Hiero.Python.TrackItem.MediaType.kVideo

name

values = {'kAudio': core.Hiero.Python.TrackItem.MediaType.kAudio, 'kUnknown': core.Hiero.Python.TrackItem.MediaType.kUnknown, 'kVideo': core.Hiero.Python.TrackItem.MediaType.kVideo}

addTag(tag) → adds a new tag to the track item.

Parameters:

tag – tag object

Returns:

a hiero.core.Tag object

addToNukeScript(script=, firstFrame=None, additionalNodes=[], additionalNodesCallback=None, includeRetimes=False, retimeMethod=None, startHandle=None, endHandle=None, colourTransform=None, offset=0, nodeLabel=None, includeAnnotations=False, includeEffects=True, outputToSequenceFormat=False)

This is a variation on the Clip.addToNukeScript() method that remaps the Read frame range to the range of the this TrackItem rather than the Clip’s range. TrackItem retimes and reverses are applied via Retime and OFlow nodes if needed. The additionalNodes parameter takes a list of nodes to add before the source material is shifted to the TrackItem timeline time and trimmed to black outside of the cut. This means timing can be set in the original source range and adding channels, etc won’t affect frames outside the cut length.

Parameters:

• retimeMethod – “Motion”, “Blend”, “Frame” - Knob setting for OFlow retime method

• offset – Optional, Global frame offset applied across whole script

currentVersion() → returns a version object for the current version set on this track item.

Returns:

hiero.core.Version object

eventNumber() → Get the event number of this track item on it's Sequence.

Returns:

integer event number

getAvailableOcioColourTransforms()

self. getAvailableOcioColourTransforms() -> returns colour transform for the media source.

Returns:

string

handleInLength() → returns the length of the track item's in handle.

Returns:

frames

handleInTime() → returns the track item's in handle time.

Returns:

frames

handleOutLength() → returns the length of the track item's out handle.

Returns:

frames

handleOutTime() → returns the track item's out handle time.

Returns:

frames

inTransition() → returns the in transition for this track item.

Returns:

hiero.core.Transition object

isMediaPresent()

self.isMediaPreset() -> returns True if the track item represent a media source and if the media source is currently available in Hiero (and not offline). Returns False otherwise.

Returns:

True or False

kAudio = core.Hiero.Python.TrackItem.MediaType.kAudio

kUnknown = core.Hiero.Python.TrackItem.MediaType.kUnknown

kVideo = core.Hiero.Python.TrackItem.MediaType.kVideo

link(trackItem) → Links track item with another track item. Both track items must point to the same source.

Parameters:

trackItem – track item to link to

mapSourceToTimeline()

self.mapTimelineToSource(time) -> Map from the track item’s source time to timeline time.

Parameters:

time – time to map

Returns:

mapped time

mapTimelineToSource(time) → Map from timeline time to the track item's source time.

Parameters:

time – time to map

Returns:

mapped time

maxVersion() → sets the highest available version on this TrackItem. If versionLinkedToBin() is set, changes the version on all linked objects.

Returns:

hiero.core.Version object

mediaType() → returns media type for the track item.

Returns:

MediaType object

metadata() → returns the metadata for the track item.

Returns:

hiero.core.DataCollection object

minVersion() → sets the lowest available version on this TrackItem. If versionLinkedToBin() is set, changes the version on all linked objects.

Returns:

hiero.core.Version object

name() → returns the track item's name.

Returns:

string

nextVersion() → sets the next available version on this TrackItem. If versionLinkedToBin() is set, changes the version on all linked objects.

Returns:

hiero.core.Version object

numVersions() → returns the total number of versions on this track item currently (nothing to do with the maximum or minimum version number).

Returns:

int

outTransition() → returns the out transition for this track item.

Returns:

hiero.core.Transition object

playbackSpeed() → returns the playback speed of this track item.

Returns:

double

prevVersion() → sets the next available version on this TrackItem. If versionLinkedToBin() is set, changes the version on all linked objects.

Returns:

hiero.core.Version object

reconnectMedia(path) → Reconnects media for the Clip used by the TrackItem, using the specified path.

Parameters:

path – path containing media to reconnect to

reformatState() → returns the reformat state for the track item.

Returns:

hiero.core.ReformatState object

removeTag(tag) → removes the tag from the track item.

Parameters:

tag – hiero.core.Tag object

replaceClips(path) → Find a new Clip from the specified path, and replace the TrackItem's existing Clip with it.

Parameters:

path – path containing media to replace with

setCameraColourTransform(colourTransform) → sets the camera colour transform for the source media.

Parameters:

colourTransform – Colour transform name

setCurrentVersion(version) → sets the current version (by object) on this track item. Note that this method doesn't check that the versioned media source exists on disk.

Parameters:

version – hiero.core.Version object

setCurrentVersionIndex(index) → sets the current version on this track item and returns the new version object. Creates a new version if there wasn't one before, but doesn't check that the versioned media source exists on disk.

Parameters:

index – the integer index to set the current version on this track item to

Returns:

hiero.core.Version object

WARNING - DEPRECATED ( setCurrentVersionIndex ): This method is deprecated and will not be present in future versions of the Python API. Version indices are no longer unique identifiers and should not be used as such. Please use TrackItem.setActiveVersion() instead.

setName(name) → sets the name of the track item.

Parameters:

name – the value to set the track name to

setPlaybackSpeed(newSpeed) → sets the playback speed of this track item.

Parameters:

newSpeed – double

setSource(clip, trackIndex=0) → sets the source Clip for this TrackItem.

If the TrackItem is not already in a Track, the duration will be set to the Clip’s duration.

Parameters:

• clip – the hiero.core.Clip object to set as the source for this track item

• trackIndex – optional track index, for instance if you are adding an audio Clip and want to use its second audio track

Returns:

the hiero.core.Clip object passed in

setSourceIn(time) → sets the source in for the track item. This will shrink or grow the duration.

Parameters:

time – frame value

setSourceMediaColourTransform(colourTransform) → sets the input colour transform for the source media.

Parameters:

colourTransform – Colour transform name

setSourceOut(time) → sets the source out for the track item. This will shrink or grow the duration.

Note that this value depends on speed. For exact editing, edit speed instead in order to avoid rounding errors.

Parameters:

time – frame value

setTimelineIn(inTime) → sets the timeline in value. Shrinks or grows the timeline duration, as appropriate.

Parameters:

inTime – frame value

setTimelineOut(outTime) → sets the timeline out value. Shrinks or grows the timeline duration, as appropriate.

Parameters:

outTime – frame value

setTimes(timelineIn, timelineOut, sourceIn, sourceOut) → sets the timeline and source times for the track item.

Parameters:

• timelineIn – timeline in frame

• timelineOut – timeline out frame

• sourceIn – source in frame

• sourceOut – source out frame

setVersionLinkedToBin(linked) → link the TrackItem's version to that of it's associated BinItem. If updateVersion is false, the TrackItem's version will not be updated immediately, this will happen next time a version is set on the BinItem or any linked TrackItems.

Parameters:

• linked – The linked state to be set on the TrackItem

• updatedVersion – Whether or not the TrackItems version will be updated

source() → depending on the underlying type of the track item, returns a hiero.core.Clip object, a hiero.core.Sequence object or a hiero.core.MediaSource object.

Returns:

a hiero.core.Clip object, a hiero.core.Sequence object or a hiero.core.MediaSource object

sourceDuration() → returns the source duration value for the track item.

Note that this value depends on speed, and may not be an integer value.

Returns:

frames

sourceIn() → returns the source in value for the track item.

Note that after a combination of a retime and editing, this value may not be an integer.

Returns:

frame

sourceMediaColourTransform()

self.setSourceMediaColourTransform() -> returns colour transform for the media source.

Returns:

string

sourceOut() → returns the source out value for the track item.

Note that this value depends on speed, and may not be an integer value.

Returns:

frame

tags() → returns a tuple of all of the tags applied to this object.

Returns:

tuple of hiero.core.Tag objects

thumbnail(frame, layer) → returns a thumbnail of the frame specified as a QImage object.

Parameters:

• frame – the frame to get the thumbnail for (defaults to 0)

• layer – the layer to get the thumbnail for (defaults to colour)

Returns:

QImage object

toString() → returns a description of the object. Equivalent to str(object).

Returns:

string

unlink(trackItem) → Unlinks this track item from given track item.

Parameters:

trackItem – track item from which this track item is being unlinked

unlinkAll() → Unlink all track items that are linked to this one.

versionDown() → decrements the current version on this track item and returns the new version object. Creates a new version if there wasn't one before, but doesn't check that the versioned media source exists on disk.

Returns:

hiero.core.Version object

WARNING - DEPRECATED ( versionDown ): This method is deprecated and will not be present in future versions of the Python API. Only available versions can now be obtained from TrackItem. To find new versions, please use hiero.core.VersionScanner. To obtain the next version, please use TrackItem.prevVersion().

versionLinkedToBin() → get if the TrackItem's version is linked to the associated BinItem

Returns:

bool

versionMaxAvailable() → returns the highest discovered version on this track item.

Returns:

hiero.core.Version object

WARNING - DEPRECATED ( versionMaxAvailable ): This method is deprecated and will not be present in future versions of the Python API. Only available versions can now be obtained from TrackItem. This method has been replaced by TrackItem.maxVersion().

versionMinAvailable() → returns the lowest discovered version on this track item.

Returns:

hiero.core.Version object

WARNING - DEPRECATED ( versionMinAvailable ): This method is deprecated and will not be present in future versions of the Python API. Only available versions can now be obtained from TrackItem. This method has been replaced by TrackItem.minVersion().

versionNextAvailable() → returns the next highest available version on this track item that the application has discovered.

Returns:

hiero.core.Version object

WARNING - DEPRECATED ( versionNextAvailable ): This method is deprecated and will not be present in future versions of the Python API. Only available versions can now be obtained from TrackItem. This method has been replaced by TrackItem.nextVersion().

versionPrevAvailable() → returns the next lowest version on this track item that the application has discovered.

Returns:

hiero.core.Version object

WARNING - DEPRECATED ( versionPrevAvailable ): This method is deprecated and will not be present in future versions of the Python API. Only available versions can now be obtained from TrackItem. This method has been replaced by TrackItem.prevVersion().

versionUp() → increments the current version on this track item and returns the new version object. Creates a new version if there wasn't one before, but doesn't check that the versioned media source exists on disk.

Returns:

hiero.core.Version object

WARNING - DEPRECATED ( versionUp ): This method is deprecated and will not be present in future versions of the Python API. Only available versions can now be obtained from TrackItem. To find new versions, please use hiero.core.VersionScanner. To obtain the next version, please use TrackItem.nextVersion().

class hiero.core.TrackItemBase

Base class for objects which can exist on a timeline track which provides some common methods. Not to be used directly.

clone() → returns a deep copy of this object.

WARNING - DEPRECATED ( clone ): This method is deprecated and will not be present in future versions of the Python API. This method has been replaced by copy().

copy() → returns a deep copy of this object.

duration() → returns the timeline duration value for the item.

Returns:

frames

guid()

isEnabled() → returns True if the track item is enabled.

Returns:

True or False

isNull() → returns True if the track item is invalid.

Returns:

True or False

linkedItems() → returns a tuple of track item objects linked to this one.

Returns:

tuple of linked items

move(time) → moves the item in the sequence. This will keep the duration.

Parameters:

time – frame value. If positive, the item moves right. If negative, the item moves left.

static moveTrackItems(trackItems, time) → moves a group of track items in the sequence.

Parameters:

• trackItems – sequence of track items to move

• time – frame value. If positive, the trackitems move right. If negative, the trackitems move left.

parent() → returns the AudioTrack or VideoTrack that contains this item.

Returns:

hiero.core.AudioTrack or hiero.core.VideoTrack object

parentSequence()

parentTrack()

project() → returns the Project object that this is attached to, or None if the object is not attached to a project.

Returns:

hiero.core.Project object

sequence() → returns the Sequence object that this is attached to, or None if the object is not attached to a project.

Returns:

hiero.core.Project object

setEnabled(enabled) → enables or disables the track item.

Returns:

True or False

setTimelineIn(inTime) → sets the timeline in value. Shrinks or grows the timeline duration, as appropriate.

Parameters:

inTime – frame value

setTimelineOut(outTime) → sets the timeline out value. Shrinks or grows the timeline duration, as appropriate.

Parameters:

outTime – frame value

timelineIn() → returns the timeline in value for the track item.

Returns:

frames

timelineOut() → returns the timeline in value for the track item.

Returns:

frames

toString() → returns a description of the object. Equivalent to str(object).

Returns:

string

trimIn(time) → trims the left end of the item. This will grow or shrink the duration and the sourceDuration, but keep the playback speed.

Parameters:

time – frame value. If positive, the item duration shrinks. If negative, the item duration grows.

trimOut(time) → trims the right end of the item. This will grow or shrink the duration and the sourceDuration, but keep the playback speed.

Parameters:

time – frame value. If positive, the item duration shrinks. If negative, the item duration grows.

class hiero.core.Transition

Object representing a transition between two clips.

class Alignments

kDissolve = core.Hiero.Python.Transition.Alignments.kDissolve

kFadeIn = core.Hiero.Python.Transition.Alignments.kFadeIn

kFadeOut = core.Hiero.Python.Transition.Alignments.kFadeOut

kUnknown = core.Hiero.Python.Transition.Alignments.kUnknown

name

values = {'kDissolve': core.Hiero.Python.Transition.Alignments.kDissolve, 'kFadeIn': core.Hiero.Python.Transition.Alignments.kFadeIn, 'kFadeOut': core.Hiero.Python.Transition.Alignments.kFadeOut, 'kUnknown': core.Hiero.Python.Transition.Alignments.kUnknown}

alignment() → returns the alignment mode of this transition. Either kFadeIn, kDissolve, kFadeOut or kUnknown.

Returns:

alignment type (hiero.core.Transition.Alignments)

static createAudioCrossfadeTransition(trackItem1, trackItem2, duration1, duration2) → creates a new audio crossfade (kDissolve) Transition between two adjacent track items.

The effect will start at duration frames from the end of the trackItem1 and end at duration frames from the start of trackItem2.

Parameters:

• trackItem1 – the earlier hiero.core.TrackItem object to dissolve from. Must be an Audio TrackItem.

• trackItem2 – the later hiero.core.TrackItem object to crossfade to. Must be an Audio TrackItem.

• duration1 – frames for the crossfade from

• duration2 – frames for the crossfade to

Returns:

hiero.core.Transition object

Seealso:

createDissolveTransition for Video equivalent

static createAudioFadeInTransition(trackItem, duration) → creates a new fade in (kFadeIn) Transition with the timelineIn of the trackItem and the duration specified.

Parameters:

• trackItem – hiero.core.TrackItem object to use the timelineIn value from. Must be an Audio TrackItem.

• duration – frames

Returns:

hiero.core.Transition object

Seealso:

createFadeInTransition for Video equivalent

static createAudioFadeOutTransition(trackItem, duration) → creates a new fade out (kFadeOut) Transition. The in point will be the timelineOut of trackItem, minus the duration specified.

Parameters:

• trackItem – hiero.core.TrackItem object to use the timelineOut value from. Must be an Audio TrackItem.

• duration – frames

Returns:

hiero.core.Transition object

Seealso:

createFadeOutTransition for Video equivalent

static createDissolveTransition(trackItem1, trackItem2, duration1, duration2) → creates a new dissolve (kDissolve) Transition between two adjacent track items.

The effect will start at duration frames from the end of the trackItem1 and end at duration frames from the start of trackItem2.

Parameters:

• trackItem1 – the earlier hiero.core.TrackItem object to dissolve from. Must be a Video TrackItem.

• trackItem2 – the later hiero.core.TrackItem object to dissolve to. Must be a Video TrackItem.

• duration1 – frames for the dissolve from

• duration2 – frames for the dissolve to

Returns:

hiero.core.Transition object

Seealso:

createAudioCrossTransition for Audio equivalent

static createFadeInTransition(trackItem, duration) → creates a new fade in (kFadeIn) Transition with the timelineIn of the trackItem and the duration specified.

Parameters:

• trackItem – hiero.core.TrackItem object to use the timelineIn value from. Must be a Video TrackItem.

• duration – frames

Returns:

hiero.core.Transition object

Seealso:

createAudioFadeInTransition for Audio equivalent

static createFadeOutTransition(trackItem, duration) → creates a new fade out (kFadeOut) Transition. The in point will be the timelineOut of trackItem, minus the duration specified.

Parameters:

• trackItem – hiero.core.TrackItem object to use the timelineOut value from. Must be a Video TrackItem.

• duration – frames

Returns:

hiero.core.Transition object

Seealso:

createAudioFadeOutTransition for Audio equivalent

dissolveNode() → Returns the Dissolve node which controls the transition curve.

Returns:

nuke.Node

guid()

inTrackItem() → Get the in track item for this transition.

return: hiero.core.TrackItem

kDissolve = core.Hiero.Python.Transition.Alignments.kDissolve

kFadeIn = core.Hiero.Python.Transition.Alignments.kFadeIn

kFadeOut = core.Hiero.Python.Transition.Alignments.kFadeOut

kUnknown = core.Hiero.Python.Transition.Alignments.kUnknown

outTrackItem() → Get the out track item for this transition.

return: hiero.core.TrackItem

parent() → returns the AudioTrack or VideoTrack that contains this transition.

Returns:

hiero.core.AudioTrack or hiero.core.VideoTrack object

project() → returns the Project object that this is attached to, or None if the object is not attached to a project.

Returns:

hiero.core.Project object

setAlignment(alignment) → sets the alignment mode on this transition.

Parameters:

alignment – alignment type (hiero.core.Transition.Alignments), either kFadeIn, kDissolve, or kFadeOut

setTimelineIn(inTime) → sets the in point for this transition. Note that this trims the duration of the transition.

Parameters:

inTime – frame for the new in point

setTimelineOut(outTime) → sets the out point for this transition. Note that this trims the duration of the transition.

Parameters:

outTime – frame for the new out point

toString() → returns a description of the object. Equivalent to str(object).

Returns:

string

class hiero.core.UndoGroup

Helper class for beginning and ending undo on a project. Recommended usage is to create with hiero.core.Project.beginUndo(name), using a with block for exception safety to ensure Project.endUndo() is called.

For example:

with project.beginUndo(‘My Undo’): // Undoable edits

beginUndo() -> starts a new undo action on the project with the initialised name.  See hiero.core.Project.beginUndo()

endUndo() → ends the undo action on the project

isNull()

class hiero.core.Version

Object representing a version of a clip or sequence. Can be created with a Clip or Sequence object.

guid()

isHidden()

isNull() → returns True if the object is invalid, False otherwise.

Returns:

True or False

item() → returns the clip or sequence stored with this version.

Returns:

hiero.core.Clip or hiero.core.Sequence object

name() → returns the name of this version.

Returns:

string

parent() → returns the bin item that contains this version.

Returns:

hiero.core.BinItem object

serialize()

setHidden()

toString() → returns a description of the object. Equivalent to str(object).

Returns:

string

versionIndex() → returns a string containing the version's index.

Returns:

string

WARNING - DEPRECATED ( versionIndex ): This method is deprecated and will not be present in future versions of the Python API. Version indices are no longer unique identifiers and should not be used as such.

class hiero.core.VideoTrack

Object for manipulating video tracks.

addSubTrackItem(subTrackItem, subTrackIndex) → Add a subtrack item to the track on the given sub-track index.

This method will cut or delete sub-track items that overlap with the one being added.

Parameters:

• subTrackItem – a hiero.core.SubTrackItem object to add.

• subTrackIndex – the index of the sub-track to add to.

Returns:

the added item

addTag(tag) → adds a tag to the video track item.

Parameters:

tag – the hiero.core.Tag to add to the video track.

addToNukeScript(script=, additionalNodes=[], additionalNodesCallback=None, includeRetimes=False, retimeMethod=None, offset=0, skipOffline=True, mediaToSkip=[], disconnected=False, includeAnnotations=False, includeEffects=True)

Add a Read node for each track item to the script with Merge or Dissolve nodes to join them in a sequence. TimeClip nodes are added to pad any gaps between clips.

Parameters:

• script – Nuke script object to add nodes to.

• additionalNodes – List of nodes to be added post read, passed on to track items

• additionalNodesCallback – callback to allow custom additional node per item function([Clip|TrackItem|Track|Sequence])

• includeRetimes – True/False include retimes

• retimeMethod – “Motion”, “Blend”, “Frame” - Knob setting for OFlow retime method

• offset – Optional, Global frame offset applied across whole script

• skipOffline – If True, offline clips are not included in the export

• mediaToSkip – List of MediaSources which should be excluded from the export

• disconnected – If True, items on the track are not connected and no constant nodes are added to fill gaps

• includeAnnotations – If True, clip-level annotations will be included in the output

• includeEffects – If True, clip-level soft effects will be included in the output

addTrackItem(clip, position) → if the first parameter is a Clip object, the second parameter must be specified and this method creates a new track item and adds it to this video track at the given position.

If the first parameter is a TrackItem, then this method just adds the track item specified. This method will cut or delete track items that overlap with the one being added. This method can only be called if the track has already been added to a Sequence.

Parameters:

• clip – a hiero.core.Clip object or a hiero.core.TrackItem object, to add to this video track.

• position – int; insert position. Do not specify if clip is a TrackItem.

Returns:

hiero.core.TrackItem object

blendMode() → returns a string representing the blend-mode as it appears in the Nuke Merge Node, if the VideoTrack object has blending enabled.

Returns:

String containing the blend-mode

clone() → returns a deep copy of this object.

Returns:

hiero.core.VideoTrack object

WARNING - DEPRECATED ( clone ): This method is deprecated and will not be present in future versions of the Python API. This method has been replaced by copy().

copy() → returns a deep copy of this object.

Returns:

hiero.core.VideoTrack object

createEffect(trackItem=None, timelineIn=None, timelineOut=None, subTrackIndex=None) → Create an effect item and add it to the track.

The effect’s node will be of type effectType or if cloneFrom is given, will be a clone of that. It will use timing either based on trackItem if given or timelineIn and timelineOut. If none of these are specified, the effect will cover the full duration of the track’s parent sequence.

Parameters:

• effectType – the node type to create a soft effect for

• cloneFrom – if given, the new effect item will be cloned from this

• copyFrom – if given, the new effect item will be copied from this

• trackItem – if specified, the effect will be linked to the track item and use the same timing

• timelineIn – the effect start time

• timelineOut – the effect end time

• subTrackIndex – if specified, will be placed on the appropriate sub-track, otherwise will be placed on a new sub-track

Returns:

the created EffectTrackItem object

createTrackItem(name) → creates a new track item.

Parameters:

name – the name of the new track item

Returns:

hiero.core.TrackItem object

isBlendEnabled()

self.isEnabled() -> returns True if the VideoTrack object has blending enabled.

Returns:

True or False

isBlendMaskEnabled() → returns True if the VideoTrack object has blend-masking enabled.

Returns:

True or False

items() → returns a tuple with all of the track items contained by this track.

Returns:

tuple of hiero.core.TrackItem objects

parent() → returns the sequence that contains this track.

Returns:

hiero.core.Sequence object

removeSubTrackItem(subTrackItem, option=eRemoveLinkedItems) → removes a sub-track item from this track.

Parameters:

• subTrackItem – the hiero.core.SubTrackItem to remove from this track

• option – options controlling the remove behavior. By default linked items are also removed.

removeTag(tag) → removes the tag from the video track.

Parameters:

tag – hiero.core.Tag object

setAllViews() → assigns all views to a VideoTrack in the form of an empty string since that represents all views.

An error is raised if the track doesn’t have a project with multiple views.

setBlendEnabled()

self.setEnabled() -> enables or disables blending on the VideoTrack, if it is not locked or restricted. An error is raised if the track is locked or restricted.

setBlendMaskEnabled() → sets whether blend-masking is enabled or not, if it is not locked or restricted.

An error is raised if the track is locked or restricted.

setBlendMode() → sets the blend mode to be used, if it is not locked or restricted. Expected strings are NUKE Merge Node operations.

An error is raised if the track is locked or restricted.

setView() → assigns a view on a VideoTrack.

An error is raised if the track doesn’t have a project with multiple views, or the specified view is invalid.

splitViewsToTracks() → split the views to separate tracks on the Timeline.

An error is raised if the track doesn’t have a project with multiple views.

subTrackItems() → returns a tuple with an entry for each sub track in this track, each entry being a tuple of items

on the corresponding sub track.

Returns:

tuple of hiero.core.SubTrackItem sub-class objects

toString() → returns a description of the object. Equivalent to str(object).

Returns:

string

trackIndex()

view() → returns a string representing the view assigned to the VideoTrack. An empty string is returned if the track has multiple views assigned.

Returns:

String containing the view name

hiero.core.ViewerProcessNameFromDisplayTransformName()

hiero.core.addPathRemap(windowsPathPrefix, osxPathPrefix, linuxPathPrefix) → adds to the table of file path remapping prefixes that Hiero maintains. Pairs of path prefixes added to this table will be used to convert paths between Windows, OSX and Linux. When on Windows, Hiero will replace any Linux or OSX prefixes found with the corresponding Windows prefix. On OSX, Hiero will search for the Windows and Linux path prefixes and replace them with the corresponding OSX prefix. The same applies for OSX/Windows prefixes being replaced on Linux. These can also be configured through the user interface in the General tab of the Preferences dialog.

Parameters:

• windowsPathPrefix – string

• osxPathPrefix – string

• linuxPathPrefix – string

Returns:

None

hiero.core.addPluginPath(pluginPath) → adds a new path to the list of plugin paths searched for Python plugins (in Python/Startup and Python/StartupUI folders). The user's .nuke folder will be the first in this list.

hiero.core.addPluginPath(pluginPath, index) → the same as above, except that the index specifies which item in the list of paths to place the new one before.

Parameters:

• pluginPath – the new path to add

• index – optional; if not specified or negative, the new path will be added to the end of the list

hiero.core.closeAllProjects()

hiero.core.closeProject() -> closes all of the existing projects without saving. hiero.core.closeProject(bool dontSave) -> same as above, but if the parameter is set to false, unsaved projects will cause Hiero to popup a dialog for each unsaved project, asking the user if they’d like to save.

Parameters:

dontSave – True or False

hiero.core.conformer() → returns an interface for setting the conforming options.

Returns:

a hiero.core.Conformer object

hiero.core.defaultFrameRates() → returns the list of frame rates displayed in Hiero's user interface.

Returns:

tuple of floats

hiero.core.executeInMainThread(call, *args, **kwargs)

Execute the callable ‘call’ with optional arguments ‘args’ and named arguments ‘kwargs’ in the main thread and return immediately. Note that this method expects a single item for args or a tuple, and a dictionary for kwargs. It will not accept anything else.

Examples of how to use this method (that work):

def someMethod(firstParameter, kwArg0=None, kwArg1=None)

print( firstParameter )

executeInMainThread(someMethod, “First positional parameter”) executeInMainThread(someMethod, “First positional parameter”, {‘kwArg0’: “arg0”}) executeInMainThread(someMethod, (“First positional parameter”, “kwArg0 passed as positional parameter”)) executeInMainThread(someMethod, (“First positional parameter”, “kwArg0 passed as positional parameter”), {‘kwArg1’: “arg1 as well”}) executeInMainThread(someMethod, “First positional parameter”, {‘kwArg1’: “arg1”})

An example of what won’t work:

executeInMainThread(someMethod, “First positional parameter”, “Second positional parameter”)

The above fails because the second parameter to executeInMainThread must be a dictionary.

hiero.core.executeInMainThreadWithResult(call, *args, **kwargs)

Execute the callable ‘call’ with optional arguments ‘args’ and named arguments ‘kwargs’ in the main thread and wait for the result. Note that this method expects a single item for args or a tuple, and a dictionary for kwargs. It will not accept anything else.

Examples of how to use this method (that work):

def someMethod(firstParameter, kwArg0=None, kwArg1=None)

print( firstParameter ) return kwArg1

result = executeInMainThreadWithResult(someMethod, “First positional parameter”) result = executeInMainThreadWithResult(someMethod, “First positional parameter”, {‘kwArg0’: “arg0”}) result = executeInMainThreadWithResult(someMethod, (“First positional parameter”, “kwArg0 passed as positional parameter”)) result = executeInMainThreadWithResult(someMethod, (“First positional parameter”, “kwArg0 passed as positional parameter”), {‘kwArg1’: “arg1 as well”}) result = executeInMainThreadWithResult(someMethod, “First positional parameter”, {‘kwArg1’: “arg1”})

An example of what won’t work:

result = executeInMainThreadWithResult(someMethod, “First positional parameter”, “Second positional parameter”)

The above fails because the second parameter to executeInMainThread must be a dictionary.

hiero.core.filenameList(directory, splitSequences, returnDirectories, returnHiddenFiles) → Returns a list of strings representing the items found in the specified directory, putting image sequences together as one element.

Parameters:

• directory – path to the directory to query

• splitSequences – optional, defaults to False. If set to True, then splits broken image sequences up. Otherwise, broken sequences create only one entry in the returned list

• returnDirectories – optional, defaults to True. If set to True, sub directories will be included in the returned list

• returnHiddenFiles – optional, defaults to True. If set to True, hidden/system files will be returned in the list

For a directory with the following items: item1.txt item2.txt quicktime.mov highres1.dpx

You’d get a tuple with the same list of items (txt files are recognized as not being image sequences).

With a directory with the following items:

• quicktime.mov

• highres1.dpx

• highres2.dpx

• highres3.dpx

• highres4.dpx

• highres5.dpx

You’d get a tuple with: (“quicktime.mov”, “highres#.dpx 1-4”)

If you had the following in a directory:

• highres1.dpx

• highres2.dpx

• highres4.dpx

• highres5.dpx

Note the missing 3 in the above list. If you set splitSequences to False, you’d get: (“highres#.dpx 1-5”)

If instead you set splitSequences to True, you’d get: (“highres#.dpx 1-3”, “highres#.dpx 4-5”)

If you had a directory with this:

• highres001.dpx

• highres002.dpx

• highres003.dpx

• highres004.dpx

• highres005.dpx

You’d get a tuple like this: (“highres###.dpx 1-5”)

If you had a directory with this:

• highres99.dpx

• highres100.dpx

You’d get this: (“highres#.dpx 99-100”)

In the above example, the sequence number crosses over from 2 digits to 3, so it is treated as one and the number of hashes (#) is put to 1, which means the number is wild.

If instead you had a directory with this:

• highres099.dpx

• highres100.dpx

You’d get this: (“highres###.dpx 99-100”)

Note that in this last example, the 99 is prefixed with 0.

hiero.core.findItemByGuid(guid, *args, **kwargs)

Find an item matching a guid. This searches all open projects. The other arguments are the same as those to findItemsInProject.

hiero.core.findItems(proj=None, filter=None, partialName=None, verbose=0)

findItemsInProject -> Returns all items in a Project’s clipsBin. User can filter by a specific type(s) or by partial name, and optionally print a verbose log to the output window. Takes up to 4 keyword arguments : Project object, a string, a type or an array of strings for filter type, partial name of item, and a bool to enable/disable verbose mode Returns an array of items. Note: to find Tags in a Project, use the findProjectTags method.

Parameters:

• proj – hiero.core.Project object, to find the items on. If None, then the last project in the currently loaded projects will be used.

• filter – optional. Used to filter the returned list. Can be None, a case insensitive single string or type, or a list of case insensitive strings and types.

• partialName – optional string. If specified, objects will only be returned if their name contains this string.

• verbose – optional value. If not None/False/0, findItems will print out information as it searches.

Returns:

list of objects.

Example uses:

allItems = findItemsInProject(myProj) allSeqsAndTracksWith30SecInName = findItemsInProject(myProj, [‘sequences’, ‘Tracks’], ‘30Sec’, 1) allTracks = findItemsInProject(myProj, “Track”) videoTracks = findItemsInProject(myProj, “VideoTrack”) sequences = findItemsInProject(myProj, “Sequence”) # Can also use plural: ‘Sequences’ sequences = findItemsInProject(myProj, hiero.core.Sequence) sequencesAndClips = findItemsInProject(myProj, [hiero.core.Sequence, hiero.core.Clip]) binsOnly = findItemsInProject(myProj, hiero.core.Bin)

hiero.core.findItems is deprecated. Please use hiero.core.findItemsInProject instead.

hiero.core.findItemsByGuid(guids, *args, **kwargs)

Find all items matching a list of guids. This searches all open projects. The other arguments are the same as those to findItemsInProject.

hiero.core.findItemsInBin(rootBin, filter=None, partialName=None, verbose=0) → Returns all items recursively in a Bin, found in rootBin.

Parameters:

• rootBin – hiero.core.Bin object, to find the items on.

• filter – optional. Used to filter the returned list. Can be None, a case insensitive single string or type, or a list of case insensitive strings and types.

• partialName – optional string. If specified, objects will only be returned if their name contains this string.

• verbose – optional value. If not None/False/0, findItems will print out information as it searches.

Returns:

list of objects.

Example uses: myBin = hiero.core.projects()[0].clipsBin()[0] # A hiero.core.Bin object allItemsInMyBin = findItemsInBin(myBin) allClipsAndSequencesInMyBin = findItemsInBin(myBin, filter = [hiero.core.Sequence, hiero.core.Clip]) allClipsWithPartialName = findItems(myProj, ‘clips’, ‘C00’) allSubBinsOnly = findItems(myProj, hiero.core.Bin)

hiero.core.findItemsInProject(proj=None, filter=None, partialName=None, verbose=0)

findItemsInProject -> Returns all items in a Project’s clipsBin. User can filter by a specific type(s) or by partial name, and optionally print a verbose log to the output window. Takes up to 4 keyword arguments : Project object, a string, a type or an array of strings for filter type, partial name of item, and a bool to enable/disable verbose mode Returns an array of items. Note: to find Tags in a Project, use the findProjectTags method.

Parameters:

• proj – hiero.core.Project object, to find the items on. If None, then the last project in the currently loaded projects will be used.

• filter – optional. Used to filter the returned list. Can be None, a case insensitive single string or type, or a list of case insensitive strings and types.

• partialName – optional string. If specified, objects will only be returned if their name contains this string.

• verbose – optional value. If not None/False/0, findItems will print out information as it searches.

Returns:

list of objects.

Example uses:

allItems = findItemsInProject(myProj) allSeqsAndTracksWith30SecInName = findItemsInProject(myProj, [‘sequences’, ‘Tracks’], ‘30Sec’, 1) allTracks = findItemsInProject(myProj, “Track”) videoTracks = findItemsInProject(myProj, “VideoTrack”) sequences = findItemsInProject(myProj, “Sequence”) # Can also use plural: ‘Sequences’ sequences = findItemsInProject(myProj, hiero.core.Sequence) sequencesAndClips = findItemsInProject(myProj, [hiero.core.Sequence, hiero.core.Clip]) binsOnly = findItemsInProject(myProj, hiero.core.Bin)

hiero.core.findItems is deprecated. Please use hiero.core.findItemsInProject instead.

hiero.core.findProjectTags(proj=None, tagName=None, iconName=None, verbose=0)

findProjectTags -> Returns all Tags in a project. User can filter by tag name, icon name, and optionally print a verbose log to the output window. Takes up to 4 arguments : Project object, partial name of Tag, partial icon name, and a bool to enable/disable verbose mode Returns a list of Tag objects.

Parameters:

• proj – hiero.core.Project object, to find the items on. If None, then the last project in the currently loaded projects will be used.

• tagName – optional string. If specified, Tags will only be returned if their name contains this string.

• iconName – optional string. If specified, Tags will only be returned if their icon path contains this string.

• verbose – optional value. If not None/False/0, findProjectTags will print out information as it searches.

Returns:

list of Tag objects.

Example uses:

allTags = findItems(myProj) allTagsWithNameLens = findItems(myProj, tagName = ‘Lens’) allTagsWithIconPath = findItems(myProj, iconName = ‘lens.png’)

hiero.core.formats() → returns a tuple with all of the formats currently available.

Returns:

tuple of hiero.core.Format objects

hiero.core.getBundledNukePath() → return the bundled Nuke executable

Returns:

A string containing the bundled Nuke executable path.

hiero.core.getBundledPythonPath() → return the bundled Python executable

Returns:

A string containing the bundled Python executable path.

hiero.core.getFilenameList()

Deprecated. Do not use. Use hiero.core.filenameList() instead

hiero.core.getLibraryDirectory(subdirectory) → deprecated; use hiero.core.libraryDirectory() instead.

hiero.core.getPluginPath() → deprecated; please use hiero.core.pluginPath instead.

hiero.core.getRoleColorspace()

hiero.core.isHieroPlayer()

hiero.core.isIndie()

hiero.core.isNC()

hiero.core.isQuickTimeFileExtension(fileExtension)

Returns True if the fileExtension is a recognised QuickTime extension, False otherwise.

hiero.core.isVideoFileExtension(fileExtension)

Returns True if the fileExtension is a recognised video format extension, i.e not an image Sequence (QuickTime/MXF/R3D media)

hiero.core.libraryDirectory(subdirectory) → returns the input appended to the location of the user's .nuke directory.

Parameters:

subdirectory – path to append to the .nuke directory

Returns:

string

hiero.core.newProject(name=None) → creates and returns a new Project object. A name can optionally be given for the project.

Returns:

hiero.core.Project object

hiero.core.openProject(path)

Opens the project found at the specified path. Must be called on the main thread. Throws an exception on failure. :param path: Path to the project file (*.hrox). :return: Opened project.

hiero.core.overrideApplicationSettingsSetValue()

hiero.core.pathRemappings() → returns the path remappings specified in the application preferences, or added through addPathRemap().

Returns:

a list of path remappings each containing the mapping for (windows, osx, linux)

hiero.core.pluginPath() → Returns a tuple of the search paths used by Hiero to load Python scripts.

Returns:

tuple of strings

hiero.core.presetProjects()

hiero.core.projects() -> returns a tuple of all of the currently loaded preset projects.

Deprecated:

Use hiero.core.projects(Project.kStartupProjects) instead

Returns:

tuple of hiero.core.Project objects

hiero.core.project(name) → returns the Project with the specified name, if it can be found, or None.

Returns:

hiero.core.Project object

hiero.core.projects() → returns a tuple of currently loaded projects which are user projects (not startup). Same effect as calling the method below passing Project.kUserProjects.

hiero.core.projects(projectTypes) → returns a tuple of currently loaded projects, filtered according to projectTypes. Use hiero.core.projects()[-1] to get the last loaded project.

Parameters:

projectTypes – optional; one of Project.kAllProjects, Project.kUserProjects, Project.kStartupProjects

Returns:

tuple of hiero.core.Project objects

hiero.core.quit() → shuts down Hiero, without saving any existing projects. Safer than calling sys.exit(), which doesn't always clean up properly and can cause Hiero to crash. This version sets the exit code of the Hiero process to 0.

Note that this must be the last line in a script. hiero.core.quit(exitCode) -> same as the first version of this method, except that this one sets the exit code of the process to the exitCode variable.

Parameters:

exitCode – optional; integer value to set the process’s exit code to

hiero.core.redo()

hiero.core.redoSize()

hiero.core.remapPath(path) → uses the platform specific path remapping rules from the user's preferences and applies them to the input path.

Parameters:

path – string path to apply the path remapping rules to

Returns:

string

hiero.core.setLocalisationForAllVersionsInProject(proj, policy)

Sets localisation policy for all Versions of All Clips in a project

Parameters:

proj – hiero.core.Project

Param:

policy - the localisation policy from hiero.core.Clip. Options: kOnLocalize, kAutoLocalize, kOnDemandLocalize, kOffLocalize

hiero.core.setLocalisationPolicyOnBin(bin, policy, recursive=True, forceUpdate=False)

Sets localisation policy for all Clips found in a Bin and recursively found in all Sub-Bins

Param:

clipList - a list of hiero.core.Clip objects

Param:

policy - the localisation policy from hiero.core.Clip. Options: kOnLocalize, kAutoLocalize, kOnDemandLocalize, kOffLocalize

Param:

recursive (optional, default = True) - localises all Clips found recursively in a Bin Structure

Param:

forceUpdate - if set to True the clip files will be forced to update in case the localization mode is set to ‘Manual’

hiero.core.setLocalisationPolicyOnClip(clip, policy, forceUpdate)

Set the localisation policy on a clip, optionally forcing it to update the localised files.

Param:

clip - a hiero.core.Clip object

Param:

policy - the localisation policy from hiero.core.Clip. Options: kOnLocalize, kAutoLocalize, kOnDemandLocalize, kOffLocalize

Param:

forceUpdate - if set to True the clip files will be forced to update in case the localization mode is set to ‘Manual’

hiero.core.setLocalisationPolicyOnSequence(sequence, policy, forceUpdate=False)

Sets localisation policy for all Clips used by TrackItems in a Sequence with a given policy.

Param:

sequence - a hiero.core.Sequence object

Param:

policy - the localisation policy from hiero.core.Clip. Options: kOnLocalize, kAutoLocalize, kOnDemandLocalize, kOffLocalize

Param:

forceUpdate - if set to True the clip files will be forced to update in case the localization mode is set to ‘Manual’

hiero.core.setLocalisationPolicyOnTrack(track, policy, forceUpdate=False)

Sets localisation policy for all Clips used by TrackItems in a Track with a given policy.

Param:

track - a hiero.core.Track object

Param:

policy - the localisation policy from hiero.core.Clip. Options: kOnLocalize, kAutoLocalize, kOnDemandLocalize, kOffLocalize

Param:

forceUpdate - if set to True the clip files will be forced to update in case the localization mode is set to ‘Manual’

hiero.core.setLocalisationPolicyOnTrackItem(trackItem, policy, forceUpdate=False)

Sets localisation policy for the source Clip of a TrackItem

Param:

track - a hiero.core.TrackItem object

Param:

policy - the localisation policy from hiero.core.Clip. Options: kOnLocalize, kAutoLocalize, kOnDemandLocalize, kOffLocalize

Param:

forceUpdate - if set to True the clip files will be forced to update in case the localization mode is set to ‘Manual’

hiero.core.stopScriptAndQuit()

hiero.core.undo()

hiero.core.undoSize()

hiero.core.log.debug(message, *args)

Log message at kDebug level. If the message is a string containing formatting placeholders, args will be merged into it using the string formatting operator. Otherwise the arguments will be concatenated into a string with spaces separating them.

hiero.core.log.error(message, *args)

Log message at kError level. If the message is a string containing formatting placeholders, args will be merged into it using the string formatting operator. Otherwise the arguments will be concatenated into a string with spaces separating them.

hiero.core.log.exception(message, *args)

The same as error(), but also prints a stack trace. Only call from an exception handler.

hiero.core.log.getFileLogger(name)

Get a logger which writes to a file in the user’s NUKE_TEMP_DIR

hiero.core.log.info(message, *args)

Log message at kInfo level. If the message is a string containing formatting placeholders, args will be merged into it using the string formatting operator. Otherwise the arguments will be concatenated into a string with spaces separating them.

hiero.core.log.logLevel()

Get the current log output level. Possible values are: kDebug, kInfo, kError

hiero.core.log.setLogLevel(level)

Set the logging output level. Possible values are: kDebug, kInfo, kError