static void
VDADecoderCallback (void *decompressionOutputRefCon, CFDictionaryRef frameInfo, OSStatus status, uint32_t infoFlags, CVImageBufferRef imageBuffer)
{
MoonVDADecoder *decoder = (MoonVDADecoder *) decompressionOutputRefCon;
VideoStream *vs = (VideoStream *) decoder->GetStream ();
// FIXME: Is this always 1 thread? Can we optimize this
decoder->GetDeployment ()->RegisterThread ();
Deployment::SetCurrent (decoder->GetDeployment ());
if (imageBuffer == NULL) {
return;
}
OSType format_type = CVPixelBufferGetPixelFormatType (imageBuffer);
if (format_type != kCVPixelFormatType_422YpCbCr8) {
g_warning ("Mismatched format in VDA");
return;
}
MediaFrame *mf = (MediaFrame *) CFDictionaryGetValue (frameInfo, CFSTR ("MoonMediaFrame"));
mf->AddState (MediaFrameVUY2);
mf->FreeBuffer ();
mf->SetBufLen (0);
mf->srcSlideY = 0;
mf->srcSlideH = vs->GetHeight ();
mf->width = vs->GetWidth ();
mf->height = vs->GetHeight ();
CVPixelBufferLockBaseAddress (imageBuffer, 0);
mf->data_stride [0] = (uint8_t *) CVPixelBufferGetBaseAddress (imageBuffer);
mf->srcStride [0] = CVPixelBufferGetBytesPerRow (imageBuffer);
mf->AddState (MediaFrameDecoded);
mf->decoder_specific_data = imageBuffer;
CVPixelBufferRetain (imageBuffer);
decoder->ReportDecodeFrameCompleted (mf);
mf->unref ();
}
void
MoonVDADecoder::OpenDecoderAsyncInternal ()
{
IMediaStream *stream = GetStream ();
VideoStream *vs = (VideoStream *) stream;
int format = 'avc1';
CFDataRef avcCData = CFDataCreate (kCFAllocatorDefault, (const uint8_t*) stream->GetRawExtraData (), stream->GetRawExtraDataSize ());
OSStatus status = CreateDecoder ((SInt32) vs->GetHeight (), (SInt32) vs->GetWidth (), (OSType) format, avcCData);
if (avcCData) CFRelease (avcCData);
if (status == kVDADecoderNoErr) {
SetPixelFormat (MoonPixelFormat422YpCbCr8);
ReportOpenDecoderCompleted ();
} else {
char *str = g_strdup_printf ("MoonVDADecoder failed to open codec (result: %d)", status);
ReportErrorOccurred (str);
g_free (str);
}
}