On Fri, Feb 09, 2024 at 08:14:46PM +0000, Niklas Haas wrote: > ffmpeg | branch: master | Niklas Haas <g...@haasn.dev> | Mon Feb 5 19:28:04 > 2024 +0100| [c619d20906d039060efbeaa822daf8e949f3ef24] | committer: Niklas > Haas > > fftools/ffplay: constrain supported YUV color spaces > > SDL supports only these three matrices. Actually, it only supports these > three combinations: BT.601+JPEG, BT.601+MPEG, BT.709+MPEG, but we have > no way to restrict the specific *combination* of YUV range and YUV > colorspace with the current filter design. > > See-Also: https://trac.ffmpeg.org/ticket/10839 > > Instead of an incorrect conversion result, trying to play a YCgCo file > with ffplay will simply error out with a "No conversion possible" error. > > > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c619d20906d039060efbeaa822daf8e949f3ef24 > --- > > fftools/ffplay.c | 9 +++++++++ > 1 file changed, 9 insertions(+)
this causes a regression with ./ffplay test25.nut use the mouse to scale it up a bit to better see and then repeatly press arrow left, each time on the right side a different mix of colors appears test25.nut is a mpeg4 yuv420p video with 25x25 size, infact codec and content seem not to matter ==1071990== Conditional jump or move depends on uninitialised value(s) ==1071990== at 0x1324673: av_clip_uint8_c (common.h:208) ==1071990== by 0x13260C3: yuv2plane1_8_c (output.c:426) ==1071990== by 0x12FCC0D: lum_planar_vscale (vscale.c:53) ==1071990== by 0x12F0E0A: swscale (swscale.c:498) ==1071990== by 0x12F320A: scale_internal (swscale.c:1046) ==1071990== by 0x12F239C: scale_cascaded (swscale.c:875) ==1071990== by 0x12F27D4: scale_internal (swscale.c:937) ==1071990== by 0x12F3BBD: ff_sws_slice_worker (swscale.c:1240) ==1071990== by 0x13DC790: run_jobs (slicethread.c:65) ==1071990== by 0x13DC866: thread_worker (slicethread.c:89) ==1071990== by 0x694B608: start_thread (pthread_create.c:477) ==1071990== by 0x6A85352: clone (clone.S:95) ==1071990== ==1071990== Thread 83: ==1071990== Conditional jump or move depends on uninitialised value(s) ==1071990== at 0x1324673: av_clip_uint8_c (common.h:208) ==1071990== by 0x132602D: yuv2planeX_8_c (output.c:416) ==1071990== by 0x12FD038: chr_planar_vscale (vscale.c:100) ==1071990== by 0x12F0E0A: swscale (swscale.c:498) ==1071990== by 0x12F320A: scale_internal (swscale.c:1046) ==1071990== by 0x12F239C: scale_cascaded (swscale.c:875) ==1071990== by 0x12F27D4: scale_internal (swscale.c:937) ==1071990== by 0x12F3BBD: ff_sws_slice_worker (swscale.c:1240) ==1071990== by 0x13DC790: run_jobs (slicethread.c:65) ==1071990== by 0x13DC866: thread_worker (slicethread.c:89) ==1071990== by 0x694B608: start_thread (pthread_create.c:477) ==1071990== by 0x6A85352: clone (clone.S:95) ==1071990== ==1071990== Conditional jump or move depends on uninitialised value(s) ==1071990== at 0x1324673: av_clip_uint8_c (common.h:208) ==1071990== by 0x132602D: yuv2planeX_8_c (output.c:416) ==1071990== by 0x12FD09E: chr_planar_vscale (vscale.c:101) ==1071990== by 0x12F0E0A: swscale (swscale.c:498) ==1071990== by 0x12F320A: scale_internal (swscale.c:1046) ==1071990== by 0x12F239C: scale_cascaded (swscale.c:875) ==1071990== by 0x12F27D4: scale_internal (swscale.c:937) ==1071990== by 0x12F3BBD: ff_sws_slice_worker (swscale.c:1240) ==1071990== by 0x13DC790: run_jobs (slicethread.c:65) ==1071990== by 0x13DC866: thread_worker (slicethread.c:89) ==1071990== by 0x694B608: start_thread (pthread_create.c:477) ==1071990== by 0x6A85352: clone (clone.S:95) [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB "I am not trying to be anyone's saviour, I'm trying to think about the future and not be sad" - Elon Musk
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