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,
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);