Selector Table

Before implementing a handler for a certain selector, make sure that it is really necessary for your importer. Many selectors are optional, and only useful for certain special needs.

The Synth column indicates whether or not the selector is applicable to synthetic importers. Custom importers can respond to any of the selectors.

Selector	param1	param2	Synth
imInit	imImportInfoRec*	unused	Yes
imShutdown	unused	unused	Yes
imGetIndFormat	`(int) index`	imIndFormatRec*	Yes
imGetSupports8	unused	unused	Yes
imGetSupports7	unused	unused	Yes
imGetInfo8	imFileAccessRec8*	imFileInfoRec8*	Yes
imCloseFile	imFileRef*	`(void) PrivateData*`	No
imGetIndPixelFormat	`(int) index`	imIndPixelFormatRec*	Yes
imGetPreferredFrameSize	imPreferredFrameSizeRec*	unused	Yes
imSelectClipFrameDescriptor	imFileRef	imClipFrameDescriptorRec*	Yes
imGetSourceVideo	imFileRef	imSourceVideoRec*	Yes
imCreateAsyncImporter	imAsyncImporterCreationRec*	unused	Yes
imImportImage	imFileRef	imImportImageRec*	Yes
imImportAudio7	imFileRef	imImportAudioRec7*	Yes
`imResetSequentialAudio`	imFileRef	imImportAudioRec7*	Yes
`imGetSequentialAudio`	imFileRef	imImportAudioRec7*	Yes
imGetPrefs8	imFileAccessRec8*	imGetPrefsRec*	Yes
imGetEmbeddedLUT	`(int) index`	imIndEmbeddedLUTRec*	Yes

The following selectors are optional, to provide custom file handling:

Selector	param1	param2	Synth
imOpenFile8	imFileRef*	imFileOpenRec8*	No
imQuietFile	imFileRef*	`(void) PrivateData*`	No
imSaveFile8	imSaveFileRec8*	unused	No
imDeleteFile	imDeleteFileRec*	unused	No

The following selectors are optional, for better support copying and trimming files using the Project Manager:

Selector	param1	param2	Synth
imCalcSize8	imCalcSizeRec*	imFileAccessRec8*	No
imCheckTrim8	imCheckTrimRec*	imFileAccessRec8*	No
imTrimFile8	imFileAccessRec8*	imTrimFileRec8*	No
imCopyFile	imCopyFileRec*	unused	No
imRetargetAccelerator	imAcceleratorRec*	unused	No
imQueryDestinationPath	imQueryDestinationPathRec*	unused	No

The following selectors are used for embedded Closed Captioning support:

Selector	param1	param2	Synth
imInitiateAsyncClosedCaptionScan	imFileRef	imInitiateAsyncClosedCaptionScanRec*	No
imGetNextClosedCaption	imFileRef	imGetNextClosedCaptionRec*	No
imCompleteAsyncClosedCaptionScan	imFileRef	imCompleteAsyncClosedCaptionScanRec*	No

The following selectors are optional, useful for a subset of importers:

Selector	param1	param2	Synth
imAnalysis	imFileRef	imAnalysisRec*	Yes
imDataRateAnalysis	imFileRef	imDataRateAnalysisRec*	No
imGetTimeInfo8	imFileRef	imTimeInfoRec8*	No
imSetTimeInfo8	imFileRef	imTimeInfoRec8*	No
imGetFileAttributes	imFileAttributesRec*	unused
imGetMetaData	imFileRef	imMetaDataRec*	No
imSetMetaData	imFileRef	imMetaDataRec*	No
`imGetRollCrawlInfo`	`imRollCrawlInfoRec*`	unused	Yes
`imRollCrawlRenderPage`	`rollCrawlRenderRec*`	unused	Yes
imDeferredProcessing	imDeferredProcessingRec*	unused	No
imGetAudioChannelLayout	imFileRef	imGetAudioChannelLayoutRec*	Yes
imGetPeakAudio	imFileRef	imPeakAudioRec*	Yes
imQueryContentState	imQueryContentStateRec*	unused	No
imQueryStreamLabel	imQueryStreamLabelRec*	unused	Yes
imGetIndColorSpace	`(int) index`	imIndColorSpaceRec*	Yes

Used only in After Effects:

Selector	param1	param2	Synth
imGetSubTypeNames	`(csSDK_int32) fileType`	imSubTypeDescriptionRec*	No
imGetIndColorProfile	`(int) index`	imIndColorProfileRec*	No
imQueryInputFileList	imQueryInputFileListRec*	unused	No