Re: [FFmpeg-devel] [PATCH] avfilter/framepool: fix alignment requirements for audio and video filters

["Xiang, Haihao" <haihao.xiang-at-intel.com@ffmpeg.org>]

On Tue, 2022-03-01 at 10:43 -0300, James Almer wrote:
> On 3/1/2022 4:12 AM, Xiang, Haihao wrote:
> > Hi,
> > 
> > fate-vsynth1-mpeg2-422 is broken after this patch (commit 17a59a6).
> > 
> > --- ./tests/ref/vsynth/vsynth1-mpeg2-422        2021-11-22
> > 12:59:25.013517219 +0800
> > +++ tests/data/fate/vsynth1-mpeg2-422   2022-03-01 13:30:48.446378312 +0800
> > @@ -1,4 +1,4 @@
> > -6e135a1a27235a320311a932147846b4 *tests/data/fate/vsynth1-mpeg2-
> > 422.mpeg2video
> > -730780 tests/data/fate/vsynth1-mpeg2-422.mpeg2video
> > -0273cd8463d1fc115378748239951560 *tests/data/fate/vsynth1-mpeg2-
> > 422.out.rawvideo
> > -stddev:   10.27 PSNR: 27.90 MAXDIFF:  162 bytes:  7603200/  7603200
> > +ac2bfd738a93180bd3cb285367236d85 *tests/data/fate/vsynth1-mpeg2-
> > 422.mpeg2video
> > +702035 tests/data/fate/vsynth1-mpeg2-422.mpeg2video
> > +b8db8de89c37fab3b9a0248c2820a5ed *tests/data/fate/vsynth1-mpeg2-
> > 422.out.rawvideo
> > +stddev:   10.30 PSNR: 27.87 MAXDIFF:  167 bytes:  7603200/  7603200
> > 
> > configuration: --prefix=/usr --libdir=/usr/lib/x86_64-linux-gnu --
> > shlibdir=/usr/lib/x86_64-linux-gnu --disable-static --enable-shared --
> > enable-gpl
> > 
> > It works with option --disable-ssse3
> > 
> > Below is the info for my CPU
> > 
> > $ cat /proc/cpuinfo | grep 'model name' | head -1
> > model name      : Intel(R) Core(TM) i5-1035G1 CPU @ 1.00GHz
> > 
> > Thanks
> > Haihao
> 
> Does this help?
> 
> > diff --git a/libavfilter/framepool.c b/libavfilter/framepool.c
> > index 5b510c9af9..8258a79845 100644
> > --- a/libavfilter/framepool.c
> > +++ b/libavfilter/framepool.c
> > @@ -90,7 +90,7 @@ FFFramePool *ff_frame_pool_video_init(AVBufferRef*
> > (*alloc)(size_t size),
> >      }
> > 
> >      for (i = 0; i < 4 && pool->linesize[i]; i++) {
> > -        int h = pool->height;
> > +        int h = FFALIGN(pool->height, align);
> >          if (i == 1 || i == 2)
> >              h = AV_CEIL_RSHIFT(h, desc->log2_chroma_h);
> 
> It's the only behavior change i could find in the patch that could make 
> a difference.
> 

The above change doesn't work for me. 

Thanks
Haihao

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