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[FFmpeg-devel] FATE Errors X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: > -----Original Message----- > From: ffmpeg-devel On Behalf Of > Paul B Mahol > Sent: Saturday, May 28, 2022 10:50 AM > To: FFmpeg development discussions and patches devel@ffmpeg.org> > Subject: Re: [FFmpeg-devel] FATE Errors > > On Sat, May 28, 2022 at 10:41 AM Soft Works > wrote: > > > > > > > > -----Original Message----- > > > From: ffmpeg-devel On Behalf Of > > > Paul B Mahol > > > Sent: Saturday, May 28, 2022 10:33 AM > > > To: FFmpeg development discussions and patches > > devel@ffmpeg.org> > > > Subject: Re: [FFmpeg-devel] FATE Errors > > > > > > On Sat, May 28, 2022 at 10:12 AM Soft Works > > > > wrote: > > > > > > > > > > > > > > > > -----Original Message----- > > > > > From: ffmpeg-devel On > Behalf Of > > > > > Paul B Mahol > > > > > Sent: Saturday, May 28, 2022 10:04 AM > > > > > To: FFmpeg development discussions and patches > > > > devel@ffmpeg.org> > > > > > Subject: Re: [FFmpeg-devel] FATE Errors > > > > > > > > > > On Sat, May 28, 2022 at 9:47 AM Soft Works > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > > > > > From: ffmpeg-devel On > > > Behalf Of > > > > > > > Paul B Mahol > > > > > > > Sent: Saturday, May 28, 2022 9:35 AM > > > > > > > To: FFmpeg development discussions and patches > > > > > > devel@ffmpeg.org> > > > > > > > Subject: Re: [FFmpeg-devel] FATE Errors > > > > > > > > > > > > > > On Sat, May 28, 2022 at 9:26 AM Soft Works > > > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > > > > > > > From: ffmpeg-devel > On > > > > > Behalf Of > > > > > > > > > Paul B Mahol > > > > > > > > > Sent: Saturday, May 28, 2022 9:26 AM > > > > > > > > > To: FFmpeg development discussions and patches > > > > > > > > > devel@ffmpeg.org> > > > > > > > > > Subject: Re: [FFmpeg-devel] FATE Errors > > > > > > > > > > > > > > > > > > On Fri, May 27, 2022 at 11:11 PM Soft Works > > > > > > > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -----Original Message----- > > > > > > > > > > > From: ffmpeg-devel bounces@ffmpeg.org> > > > On > > > > > > > Behalf Of > > > > > > > > > > > Andreas Rheinhardt > > > > > > > > > > > Sent: Saturday, April 30, 2022 10:02 PM > > > > > > > > > > > To: ffmpeg-devel@ffmpeg.org > > > > > > > > > > > Subject: Re: [FFmpeg-devel] FATE Errors > > > > > > > > > > > > > > > > > > > > > > James Almer: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > On 4/30/2022 4:06 PM, Andreas Rheinhardt wrote: > > > > > > > > > > > >> Soft Works: > > > > > > > > > > > >>> Hi, > > > > > > > > > > > >>> > > > > > > > > > > > >>> is it a known issue that the current head of > the > > > > > master > > > > > > > > > branch > > > > > > > > > > > has > > > > > > > > > > > >>> FATE errors? > > > > > > > > > > > >>> > > > > > > > > > > > >>> I get the same locally as well as on the > > > automated > > > > > GitHub > > > > > > > > > build. > > > > > > > > > > > >>> One is this: > > > > > > > > > > > >>> > > > > > > > > > > > >>> --- ./tests/ref/vsynth/vsynth2-mpeg2-422 > 2022-04- > > > 30 > > > > > > > > > > > >>> 14:23:44.330424058 +0000 > > > > > > > > > > > >>> +++ tests/data/fate/vsynth2-mpeg2-422 2022- > 04-30 > > > > > > > > > > > 14:38:41.071678201 > > > > > > > > > > > >>> +0000 > > > > > > > > > > > >>> @@ -1,4 +1,4 @@ > > > > > > > > > > > >>> -b2fa9b73c3547191ecc01b8163abd4e5 > > > > > > > > > > > >>> *tests/data/fate/vsynth2-mpeg2-422.mpeg2video > > > > > > > > > > > >>> -379164 tests/data/fate/vsynth2-mpeg2- > > > 422.mpeg2video > > > > > > > > > > > >>> -704f6a96f93c2409219bd48b74169041 > > > > > > > > > > > >>> *tests/data/fate/vsynth2-mpeg2- > 422.out.rawvideo > > > > > > > > > > > >>> -stddev: 4.17 PSNR: 35.73 MAXDIFF: 70 bytes: > > > 7603200/ > > > > > > > 7603200 > > > > > > > > > > > >>> +8f6d565723ccf879ab2b5aa910b7ce21 > > > > > > > > > > > >>> *tests/data/fate/vsynth2-mpeg2-422.mpeg2video > > > > > > > > > > > >>> +380544 tests/data/fate/vsynth2-mpeg2- > > > 422.mpeg2video > > > > > > > > > > > >>> +0797fddea4835687dedddebbbe98fa8f > > > > > > > > > > > >>> *tests/data/fate/vsynth2-mpeg2- > 422.out.rawvideo > > > > > > > > > > > >>> +stddev: 4.16 PSNR: 35.73 MAXDIFF: 75 bytes: > > > 7603200/ > > > > > > > 7603200 > > > > > > > > > > > >>> Test vsynth2-mpeg2-422 failed. Look at > > > > > > > > > > > >>> tests/data/fate/vsynth2-mpeg2-422.err for > > > details. > > > > > > > > > > > >>> make: *** [tests/Makefile:277: fate-vsynth2- > > > mpeg2- > > > > > 422] > > > > > > > Error > > > > > > > > > 1 > > > > > > > > > > > >>> > > > > > > > > > > > >>> > > > > > > > > > > > >>> Is anybody seeing the same? > > > > > > > > > > > >>> > > > > > > > > > > > >>> Thanks, > > > > > > > > > > > >>> sw > > > > > > > > > > > >> > > > > > > > > > > > >> http://fate.ffmpeg.org/ doesn't show recent > > > > > regressions > > > > > > > and > > > > > > > > > FATE > > > > > > > > > > > is fine > > > > > > > > > > > >> for me locally. I recently made changes to > FATE > > > > > (namely > > > > > > > the > > > > > > > > > test > > > > > > > > > > > >> requirements, vcodec.mak (where the vsynth- > tests > > > > > reside) > > > > > > > among > > > > > > > > > the > > > > > > > > > > > files > > > > > > > > > > > >> affected), so I am interested in whether the > > > failing > > > > > tests > > > > > > > are > > > > > > > > > > > >> concentrated on the files recently changed by > me > > > (it > > > > > would > > > > > > > > > > > obviously not > > > > > > > > > > > >> haved pushed them if I knew them to cause > issues; > > > also > > > > > > > > > patchwork > > > > > > > > > > > was > > > > > > > > > > > >> fine). > > > > > > > > > > > >> Are these issues reproducible? Can you bisect > > > them? > > > > > > > > > > > >> > > > > > > > > > > > >> - Andreas > > > > > > > > > > > > > > > > > > > > > > > > This may be the alignment issue introduced in > lavfi > > > in > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > https://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=17a59a634c39b00 > > > > > > > > > > > a680c6ebbaea58db95594d13d > > > > > > > > > > > > assuming it was not fixed. > > > > > > > > > > > > I think it only affected targets where > > > > > av_cpu_max_align() > > > > > > > > > returned > > > > > > > > > > > 64. > > > > > > > > > > > > > > > > > > > > > > You are completely right: Just making > > > av_cpu_max_align > > > > > return > > > > > > > 64 > > > > > > > > > > > allows > > > > > > > > > > > to reproduce the issue. And it has nothing to do > with > > > my > > > > > > > recent > > > > > > > > > FATE > > > > > > > > > > > patches (545e87f49dc9fa5b880e330fc4e1854df68cc0f1 > > > would > > > > > be > > > > > > > the > > > > > > > > > only > > > > > > > > > > > contender for changes). > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > I found that the FATE errors can be avoided by > using > > > > > > > > > > > > > > > > > > > > ./configure --disable-avx512 > > > > > > > > > > > > > > > > > > > > Yet, I hope it will be fixed at some time.. > > > > > > > > > > > > > > > > > > > > > > > > > > > > I hope you will post a fix for it soon. > > > > > > > > > > > > > > > > That depends on whether we want alignment values > > 32bit..? > > > > > > > > > > > > > > > > > > > > > > Nope, its about mpeg video encoder in lavc that does > funny > > > things > > > > > > > from old > > > > > > > days when linesize alignment was hardcoded. > > > > > > > > > > > > Adding this > > > > > > > > > > > > align = FFMIN(align, 32); > > > > > > > > > > > > to ff_default_get_video_buffer2() resolves the issue. > > > > > > > > > > > > > > > > Maybe it resolves it for you but that does not mean in any > way > > > that > > > > > that is > > > > > valid or correct solution. > > > > > > > > > > > > > > > > > > > > > > That's why I had written: > > > > > > > > > > > > > That depends on whether we want alignment values > > 32bit..? > > > > > > > > > > > > > > > > 32bit is 4 integers. so I failed to follow whatever you tried > to > > > > > communicate. > > > > > > > > Sorry for being unclear. What I meant to ask is this: > > > > > > > > In cases where av_cpu_max_align() returns something > 32 - for > > > > example 64, do we have to use that max-align value of 64 for > > > alignment > > > > in video.c and framepool,c or could we just limit this to 32? > > > > (hence the FFMIN). > > > > > > > > Limiting the alignment to 32 appears to fix the issue, meaning > that > > > > the three fate tests mentioned above are producing the expected > ref > > > > output and don't fail anymore. > > > > > > > > > > That is hack. > > > > Only when 64bit alignment would be required or beneficial in terms > of > > performance (e.g. AVX512 operations). > > > AVX512 operations are not using 64bit alignment. They don't require, but I thought they would benefit from it. You may know better than I do, I had just read this article: https://www.intel.com/content/www/us/en/developer/articles/technical/data-alignment-to-assist-vectorization.html > > Which is the reason for my question. If yes, then this would be > > surely a bad idea. > > > > It is not Yes/No answer here. Got you, thanks. I have found a very targeted workaround now. Will submit in a moment. sw _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".