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ffmpeg-mux: Properly support lossless codecs

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- Do not set sample rate (not required here, but can be 24/32 now)
- Only set bit_rate for lossless codecs
- Only set frame_size for codecs using a fixed one
This commit is contained in:
derrod
2023-03-25 10:22:45 +01:00
parent 67c7cfecb1
commit 33e4ffd3fe
1 changed files with 14 additions and 4 deletions
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plugins/obs-ffmpeg/ffmpeg-mux/ffmpeg-mux.c
+14 -4
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@@ -526,7 +526,14 @@ static void create_audio_stream(struct ffmpeg_mux *ffm, int idx)
const char *name = ffm->params.acodec;
int channels;
const AVCodecDescriptor *codec = avcodec_descriptor_get_by_name(name);
const AVCodecDescriptor *codec_desc =
avcodec_descriptor_get_by_name(name);
if (!codec_desc) {
fprintf(stderr, "Couldn't find codec descriptor '%s'\n", name);
return;
}
const AVCodec *codec = avcodec_find_encoder(codec_desc->id);
if (!codec) {
fprintf(stderr, "Couldn't find codec '%s'\n", name);
return;
@@ -547,14 +554,17 @@ static void create_audio_stream(struct ffmpeg_mux *ffm, int idx)
context = avcodec_alloc_context3(NULL);
context->codec_type = codec->type;
context->codec_id = codec->id;
context->bit_rate = (int64_t)ffm->audio[idx].abitrate * 1000;
if (!(codec_desc->props & AV_CODEC_PROP_LOSSLESS))
context->bit_rate = (int64_t)ffm->audio[idx].abitrate * 1000;
channels = ffm->audio[idx].channels;
#if LIBAVUTIL_VERSION_INT < AV_VERSION_INT(57, 24, 100)
context->channels = channels;
#endif
context->sample_rate = ffm->audio[idx].sample_rate;
context->frame_size = ffm->audio[idx].frame_size;
context->sample_fmt = AV_SAMPLE_FMT_S16;
if (!(codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE))
context->frame_size = ffm->audio[idx].frame_size;
context->time_base = stream->time_base;
context->extradata = extradata;
context->extradata_size = ffm->audio_header[idx].size;