DD::Image::CodecOp Class Referenceabstract
Inherits DD::Image::FileOp.
Inherited by DD::Image::Read.
Public Member Functions | |
| CodecOp () | |
| virtual CodecHandler * | codec_handler () const =0 |
| virtual void | codec_options_knobs (Knob_Callback f) |
| void | add_codec_knobs (const void *id, const char *fileExt) |
| int | codec_knobs () const |
 Public Member Functions inherited from DD::Image::FileOp | |
| FileOp () | |
| virtual | ~FileOp () |
| virtual Op * | op ()=0 |
| void | Reload_Button (Knob_Callback f) |
| int | version () const |
| void | setVersion (int newVersion) |
| void | internalError (const char *fmt,...) |
| void | internalErrorV (const char *fmt, va_list args) |
| int | replaced_knobs () const |
| int | extra_knobs () const |
| Knob * | placemarker () const |
| Knob * | extraPlacemarker () const |
| virtual const char * | getFilename () const =0 |
| virtual const char * | file_type () const =0 |
| virtual FileHandler * | handler () const =0 |
| virtual void | filehandler_knobs (Knob_Callback f) |
| virtual int | filehandler_knob_changed (Knob *k) |
| virtual int | filehandler_knob_change_finished (Knob *k, bool changeByUser) |
| virtual void | filehandler_extra_knobs (Knob_Callback f) |
| virtual void | replaceable_knobs (Knob_Callback f) |
| virtual void | extra_knobs (Knob_Callback f) |
| void | replace_knobs (const void *id, const char *fileExt) |
| Change the set of knobs in response to the user changing the filename or the file type pulldown. More... | |
| const void * | replaced_knobs_id () const |
| void | add_extra_knobs (const void *id, const char *fileExt) |
| const void * | extra_knobs_id () const |
Additional Inherited Members | |
| Static Public Member Functions inherited from DD::Image::FileOp | |
| static const char * | StripPrefix (const char *filename, std::string *prefix=nullptr) |
| static const char * | StripSuffix (const char *filename, std::string *suffix=nullptr) |
| static bool | GetFormatAndName (const char *fname, std::string &format, std::string &name) |
| static const char *const * | file_types (const char *suffix, const char *altsuffix, const char **prefixBlacklist, const char **extras, const char **obsoleteIDs=nullptr) |
| Return an array of names of file types known about. This is generated by searching the pluigin directories for any plugins called "*Writer.plugin_ext". The first location in the array is a blank string for 'unknown' and the array is NULL-terminated. More... | |
| static void | AddAlias (const char *from, const char *to) |
| static const char * | LookupAlias (const char *from) |
| Protected Attributes inherited from DD::Image::FileOp | |
| bool | _readerError |
| whether or not the reader is in error (set by internalError) | |
| std::string | _readerErrorString |
| the last reader error (set by internalError) | |
Detailed Description
This class extends the functionality of the FileOp class to allow codec-format-specific knobs to be substituted in to a particular place more easily. This is normally extended by the Read/Write nodes
Constructor & Destructor Documentation
| CodecOp::CodecOp | ( | ) |
CodecOp Class
Member Function Documentation
|
pure virtual |
return the codec format handler for the current knob settings. this should return null if the handler does not support codecs.
|
virtual |
insert in the codec specific knobs. subclasses should call this in their knobs() implementation
| void CodecOp::add_codec_knobs | ( | const void * | id, |
| const char * | fileExt | ||
| ) |
If the id is different, replace the knobs by calling the above. Subclasses should call this in e.g. knob_changed() after the handler has changed
| int CodecOp::codec_knobs | ( | ) | const |
get the number of codec knobs