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vda: Signal 4 byte NAL headers to the decoder regardless of what's in the extradata 

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Sebastien Zwickert 2012-04-10 13:48:08 +02:00 committed by Martin Storsjö
parent 14f063d294
commit a40ba3afe8
1 changed files with 20 additions and 1 deletions
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21
libavcodec/vda.c
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@ -142,6 +142,26 @@ int ff_vda_create_decoder(struct vda_context *vda_ctx,
pthread_mutex_init(&vda_ctx->queue_mutex, NULL);
/* Each VCL NAL in the bistream sent to the decoder
* is preceeded by a 4 bytes length header.
* Change the avcC atom header if needed, to signal headers of 4 bytes. */
if (extradata_size >= 4 && (extradata[4] & 0x03) != 0x03) {
uint8_t *rw_extradata;
if (!(rw_extradata = av_malloc(extradata_size)))
return AVERROR(ENOMEM);
memcpy(rw_extradata, extradata, extradata_size);
rw_extradata[4] |= 0x03;
avc_data = CFDataCreate(kCFAllocatorDefault, rw_extradata, extradata_size);
av_freep(&rw_extradata);
} else {
avc_data = CFDataCreate(kCFAllocatorDefault, extradata, extradata_size);
}
config_info = CFDictionaryCreateMutable(kCFAllocatorDefault,
4,
&kCFTypeDictionaryKeyCallBacks,
@ -150,7 +170,6 @@ int ff_vda_create_decoder(struct vda_context *vda_ctx,
height = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &vda_ctx->height);
width = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &vda_ctx->width);
format = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &vda_ctx->format);
avc_data = CFDataCreate(kCFAllocatorDefault, extradata, extradata_size);
CFDictionarySetValue(config_info, kVDADecoderConfiguration_Height, height);
CFDictionarySetValue(config_info, kVDADecoderConfiguration_Width, width);