On 2022-06-19 03:36 pm, Gyan Doshi wrote:


On 2022-06-19 02:54 pm, Andreas Rheinhardt wrote:
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?

Manually. I didn't expect HW / ext lib encoders to be covered by FATE, and indeed I don't find anything for MF.

And Patchwork FATE does not show any fails for v2.
I do see lavc/avcodec testprog, but I rarely do avcodec so didn't remember that.

Regards,
Gyan
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