Rémi Denis-Courmont:
> Le keskiviikkona 21. syyskuuta 2022, 22.26.11 EEST Scott Theisen a écrit :
>> diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
>> index 7db5d1b1c5..bcf3a845a8 100644
>> --- a/libavcodec/avcodec.h
>> +++ b/libavcodec/avcodec.h
>> @@ -2076,6 +2076,17 @@ typedef struct AVCodecContext {
>> * The decoder can then override during decoding as needed.
>> */
>> AVChannelLayout ch_layout;
>> +
>> + /**
>> + * Audio only. This flag is set when MPEG audio mode dual channel has
>> been detected. + * This signals that the audio is two independent mono
>> channels. + *
>> + * 0 normally, 1 if dual channel flag is set.
>> + *
>> + * - encoding: currently unused (functionally equivalent to stereo,
>> patch welcome) + * - decoding: set by lavc
>> + */
>> + int mpeg_audio_mode_dual_channel;
>> } AVCodecContext;
>
> I agree that the dual mono flag should be exposed to the application somehow,
> but isn't this a slient ABI break?
>
Now. sizeof(AVCodecContext) is not part of the public ABI (we have a
custom allocator for it: avcodec_alloc_context3()).
- Andreas
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