> Quoting Wenbin Chen (2021-11-30 09:44:04) > > For vaapi if the init_pool_size is not zero, the pool size is fixed. > > This means max surfaces is init_pool_size, but when mapping vaapi > > frame to qsv frame, the init_pool_size < nb_surface. The cause is that > > vaapi_decode_make_config() config the init_pool_size and it is called > > twice. The first time is to init frame_context and the second time is to > > init codec. On the second time the init_pool_size is changed to original > > value so the init_pool_size is lower than the reall size because > > pool_size used to initialize frame_context need to plus thread_count and > > 3 (guarantee 4 base work surfaces). Now add code to make sure > > init_pool_size is only set once. Now the following commandline works: > > > > ffmpeg -hwaccel vaapi -hwaccel_device /dev/dri/renderD128 \ > > -hwaccel_output_format vaapi -i input.264 \ > > -vf "hwmap=derive_device=qsv,format=qsv" \ > > -c:v h264_qsv output.264 > > > > Signed-off-by: Wenbin Chen <wenbin.c...@intel.com> > > --- > > libavcodec/vaapi_decode.c | 34 ++++++++++++++++++---------------- > > 1 file changed, 18 insertions(+), 16 deletions(-) > > > > diff --git a/libavcodec/vaapi_decode.c b/libavcodec/vaapi_decode.c > > index 665af370ed..aab8162989 100644 > > --- a/libavcodec/vaapi_decode.c > > +++ b/libavcodec/vaapi_decode.c > > @@ -572,22 +572,24 @@ static int > vaapi_decode_make_config(AVCodecContext *avctx, > > if (err < 0) > > goto fail; > > > > - frames->initial_pool_size = 1; > > - // Add per-codec number of surfaces used for storing reference > frames. > > - switch (avctx->codec_id) { > > - case AV_CODEC_ID_H264: > > - case AV_CODEC_ID_HEVC: > > - case AV_CODEC_ID_AV1: > > - frames->initial_pool_size += 16; > > - break; > > - case AV_CODEC_ID_VP9: > > - frames->initial_pool_size += 8; > > - break; > > - case AV_CODEC_ID_VP8: > > - frames->initial_pool_size += 3; > > - break; > > - default: > > - frames->initial_pool_size += 2; > > + if (!frames->initial_pool_size) { > > + frames->initial_pool_size = 1; > > + // Add per-codec number of surfaces used for storing reference > frames. > > + switch (avctx->codec_id) { > > + case AV_CODEC_ID_H264: > > + case AV_CODEC_ID_HEVC: > > + case AV_CODEC_ID_AV1: > > + frames->initial_pool_size += 16; > > + break; > > + case AV_CODEC_ID_VP9: > > + frames->initial_pool_size += 8; > > + break; > > + case AV_CODEC_ID_VP8: > > + frames->initial_pool_size += 3; > > + break; > > + default: > > + frames->initial_pool_size += 2; > > + } > > Seems to me that ff_vaapi_decode_init() should not pass hw_frames_ctx to > vaapi_decode_make_config() at all, because it is already initialized and > must not be modified. > > -- > Anton Khirnov
You are right. I don't need to add an new check. ff_vaapi_decode_init() should pass NULL to vaapi_decode_make_config. Thanks for your review. I will submit a new patch Regards Wenbin > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe". _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".