* rescale output packet timestamp values from codec to stream timebase */ Memcpy(stream->codec->extradata, pkt.data, stream->codec->extradata_size) Stream->codec->extradata = (uint8_t*)av_malloc(stream->codec->extradata_size) While (frameIdx codec->extradata_size = 50 If (avio_open(&formatContext->pb, formatContext->filename, AVIO_FLAG_WRITE) (tmpRawFrameBuffer.size()) If (!(formatContext->oformat->flags & AVFMT_NOFILE)) stream->codec->color_range = AVColorRange::AVCOL_RANGE_MPEG Īv_dump_format(formatContext, 0, formatContext->filename, 1) Stream->codec->sample_aspect_ratio = aratio

stream->codec->chroma_sample_location = AVChromaLocation::AVCHROMA_LOC_CENTER stream->codec->colorspace = AVColorSpace::AVCOL_SPC_BT470BG stream->codec->color_trc = AVColorTransferCharacteristic::AVCOL_TRC_GAMMA22 stream->codec->color_primaries = AVColorPrimaries::AVCOL_PRI_BT470BG stream->codec->field_order = AVFieldOrder::AV_FIELD_UNKNOWN Stream->codec->pix_fmt = AV_PIX_FMT_YUV420P Stream->codec->codec_id = AV_CODEC_ID_H264 Stream->codec->codec_type = AVMEDIA_TYPE_VIDEO Stream->codec->flags |= CODEC_FLAG_GLOBAL_HEADER If (formatContext->oformat->flags & AVFMT_GLOBALHEADER) Ret = avformat_alloc_output_context2(&formatContext, nullptr, 'mp4', OUTPUT_V_FILE_NAME) void WriteVideo()ĪVFormatContext* formatContext = nullptr I do not know, how to prepare the extradata properly. If I feed the extra data (probably not correctly - I just copy the first 50 bytes from the packet received from the HW encoder), the file is playable in PotPlayer, but not in VLC. The problem is, that the file is not playable in Daum PotPlayer when I leave the AVCodecContext::extradata empty, however, I can play the file in VLC. The stream from CCTV seems to consist of packets of h264 I and P-frames only (no B-frames).

I am trying to mux a video to mp4 file from packets received via SDK API of CCTV camera.

Daum potplayer camcorder