[FFmpeg-devel] [PATCH v2] avcodec/mfenc: set variable frame size flag.

Andreas Rheinhardt andreas.rheinhardt at outlook.com
Sun Jun 19 12:24:43 EEST 2022


Andreas Rheinhardt:
> Gyan Doshi:
>> Default avctx->frame_size is 0 which led to init failure for
>> audio MediaFoundation encoders since 827d6fe73d.
>>
>> The MF audio encoders accept variable frame size input buffers.
>>
>> Fixes #9802
>> ---
>>  libavcodec/mfenc.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/libavcodec/mfenc.c b/libavcodec/mfenc.c
>> index 13ed7b3e11..8618e54ea3 100644
>> --- a/libavcodec/mfenc.c
>> +++ b/libavcodec/mfenc.c
>> @@ -1239,7 +1239,7 @@ static int mf_init(AVCodecContext *avctx)
>>          FF_CODEC_RECEIVE_PACKET_CB(mf_receive_packet),                         \
>>          EXTRA                                                                  \
>>          .p.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HYBRID |           \
>> -                          AV_CODEC_CAP_DR1,                                    \
>> +                          AV_CODEC_CAP_DR1 | AV_CODEC_CAP_VARIABLE_FRAME_SIZE, \
>>          .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE |                       \
>>                            FF_CODEC_CAP_INIT_CLEANUP,                           \
>>      };
> 
> This will add this capability to both audio and video encoders, although
> it makes no sense for the latter.
> 

This should actually been covered by the libavcodec-avcodec FATE test.
How did you test your patch?

- Andreas


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