src/content/common/gpu/media/vt.sig

   1 //------------------------------------------------
   2 // Functions from CoreMedia.framework used in VTVideoDecodeAccelerator.
   3 //------------------------------------------------
   4 OSStatus CMBlockBufferCreateWithMemoryBlock(CFAllocatorRef structureAllocator, void *memoryBlock, size_t blockLength, CFAllocatorRef blockAllocator, const CMBlockBufferCustomBlockSource *customBlockSource, size_t offsetToData, size_t dataLength, CMBlockBufferFlags flags, CMBlockBufferRef *newBBufOut);
   5 OSStatus CMBlockBufferReplaceDataBytes(const void *sourceBytes, CMBlockBufferRef destinationBuffer, size_t offsetIntoDestination, size_t dataLength);
   6 OSStatus CMSampleBufferCreate(CFAllocatorRef allocator, CMBlockBufferRef dataBuffer, Boolean dataReady, CMSampleBufferMakeDataReadyCallback makeDataReadyCallback, void *makeDataReadyRefcon, CMFormatDescriptionRef formatDescription, CMItemCount numSamples, CMItemCount numSampleTimingEntries, const CMSampleTimingInfo *sampleTimingArray, CMItemCount numSampleSizeEntries, const size_t *sampleSizeArray, CMSampleBufferRef *sBufOut);
   7 OSStatus CMVideoFormatDescriptionCreateFromH264ParameterSets(CFAllocatorRef allocator, size_t parameterSetCount, const uint8_t *const *parameterSetPointers, const size_t *parameterSetSizes, int NALUnitHeaderLength, CMFormatDescriptionRef *formatDescriptionOut);
   8 CMVideoDimensions CMVideoFormatDescriptionGetDimensions(CMVideoFormatDescriptionRef videoDesc);
   9
  10 //------------------------------------------------
  11 // Functions from VideoToolbox.framework used in VTVideoDecodeAccelerator.
  12 //------------------------------------------------
  13 Boolean VTDecompressionSessionCanAcceptFormatDescription(VTDecompressionSessionRef session, CMFormatDescriptionRef newFormatDesc);
  14 OSStatus VTDecompressionSessionCreate(CFAllocatorRef allocator, CMVideoFormatDescriptionRef videoFormatDescription, CFDictionaryRef videoDecoderSpecification, CFDictionaryRef destinationImageBufferAttributes, const VTDecompressionOutputCallbackRecord *outputCallback, VTDecompressionSessionRef *decompressionSessionOut);
  15 OSStatus VTDecompressionSessionDecodeFrame(VTDecompressionSessionRef session, CMSampleBufferRef sampleBuffer, VTDecodeFrameFlags decodeFlags, void *sourceFrameRefCon, VTDecodeInfoFlags *infoFlagsOut);
  16 OSStatus VTDecompressionSessionFinishDelayedFrames(VTDecompressionSessionRef session);