On Tue, Sep 02, 2014 at 10:33:46PM -0400, Timothy Reed wrote: > I?m attempting to do the exact same thing and I too am stuck on the next > step. It appears to me that I will need to encode the KLV data into the > packets but then how to mux them together?
Correct. FFmpeg has no 'KLV encoder'. > > Have you guys made any progress that you can share? Before calling avformat_write_header(), you need to manually create a KLV stream. st = avformat_new_stream(s, NULL) st->id = _pick_a_number st->codec->codec_type = AVMEDIA_TYPE_DATA st->codec->codec_id = AV_CODEC_ID_SMPTE_KLV [...] avformat_write_header(s); Then to output klv frame, you need to create an AVPacket and call av_write_frame() AVPacket pkt av_new_packet(&pkt, _data_size_) pkt.stream_index = _pick_a_number_ // load klv data into pkt.data av_write_frame(s, &pkt) Note everything above is untested pseudo code. You probably also need to set stream and packet pts. -- Peter (A907 E02F A6E5 0CD2 34CD 20D2 6760 79C5 AC40 DD6B)
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