Doesn't SDL support YUV444 as a YUV format? Or does it only support YUV420? Also, thanks for the tip about -vf format=bgra
On Fri, Mar 15, 2019 at 1:00 AM Gyan <ffm...@gyani.pro> wrote: > > > On 15-03-2019 12:05 PM, Ben Hutchinson wrote: > > Note that it does not matter what pixel format the encoder uses (j or > > non-j). This bug is only present in the decoder, and only when I select > the > > non-j version of a yuv pixel format. This bug is present in the ffplay > > decoder (possibly also in the ffmpeg decoder, but I've not yet tested > that). > > Suspected bugs should be reported at trac.ffmpeg.org > > This is not a decoder bug. ffplay uses SDL to render video; SDL supports > a limited number of YUV texture formats. So, most YUV inputs are > converted to yuv420p. Due to how the format negotiation happens, the > YUVJ formats are converted to BGRA for display, which is of course, not > subsampled. To emulate the same result with yuv444p, modify ffplay > command to, > > ffplay -f rawvideo -pix_fmt yuv444p -framerate 10 -vf format=bgra -s > 640x480 - > > > Decoder bugs are best tested with some type of framehash muxer. > > > Gyan > > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
