2017-12-29 22:14 GMT+01:00 Devin Heitmueller <dheitmuel...@ltnglobal.com>: > Hi Carl, > >> On Dec 29, 2017, at 3:55 PM, Carl Eugen Hoyos <ceffm...@gmail.com> wrote: >> >> 2017-12-29 19:12 GMT+01:00 Devin Heitmueller <dheitmuel...@ltnglobal.com>: >> >>> + for (int i = 0; i < ctx->max_audio_channels / 2; i++) { >>> + st = avformat_new_stream(avctx, NULL); >>> + if (!st) { >>> + av_log(avctx, AV_LOG_ERROR, "Cannot add stream %d\n", i); >>> + ret = AVERROR(ENOMEM); >>> + goto error; >>> + } >>> + st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO; >>> + st->codecpar->codec_id = ctx->audio_depth == 32 ? >>> AV_CODEC_ID_PCM_S32LE : AV_CODEC_ID_PCM_S16LE; >>> + st->codecpar->sample_rate = bmdAudioSampleRate48kHz; >>> + st->codecpar->channels = 2; >>> + avpriv_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in us >>> */ >>> + ctx->audio_st[i] = st; >>> + ctx->num_audio_streams++; >>> + } >> >> I would have expected that the channel_layout is set to STEREO in >> this case, is that not always true? > > I’m not sure I understand your comment. Is there some channel layout > property of the codec parameters I should be setting?
Yes, AVCodecParameters->channel_layout. Carl Eugen _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel