avstream_audio->time_base = AVRational{ 1, TIMEBASE };
avstream_audio->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
avstream_audio->codecpar->codec_id = AV_CODEC_ID_PCM_S32LE;
avstream_audio->time_base = AVRational{ 1, TIMEBASE };
avstream_audio->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
avstream_audio->codecpar->codec_id = AV_CODEC_ID_PCM_S32LE;