- avstream_audio->codec->bit_rate = bit_rate;
- avstream_audio->codec->sample_rate = OUTPUT_FREQUENCY;
- avstream_audio->codec->channels = 2;
- avstream_audio->codec->channel_layout = AV_CH_LAYOUT_STEREO;
- avstream_audio->codec->time_base = AVRational{1, time_base};
- if (avctx->oformat->flags & AVFMT_GLOBALHEADER) {
- avstream_audio->codec->flags = AV_CODEC_FLAG_GLOBAL_HEADER;
- }