av_ts2str(fr->pts), av_ts2str(fr->pkt_dts), fr->pkt_duration,
number_of_written_bytes, av_adler32_update(0, (const uint8_t*)byte_buffer, number_of_written_bytes));
av_ts2str(fr->pts), av_ts2str(fr->pkt_dts), fr->pkt_duration,
number_of_written_bytes, av_adler32_update(0, (const uint8_t*)byte_buffer, number_of_written_bytes));