Hi On Tue, May 01, 2018 at 09:40:01PM +0200, Paul B Mahol wrote: > Signed-off-by: Paul B Mahol <one...@gmail.com> > --- > libavcodec/mjpegenc.c | 5 ++++- > libavcodec/mpegvideo_enc.c | 3 +-- > tests/lavf-regression.sh | 2 +- > 3 files changed, 6 insertions(+), 4 deletions(-)
This doesnt work first create a input file ./ffmpeg -f lavfi -i testsrc=640x480 test.ppm (if you like check that this has correct white and black) 0,0,0 and 255,255,255 now convert to jpeg ./ffmpeg -i test.ppm test.jpg gimp test.jpg white and black have RGB values: 16,16,16 and 235,235,235 thats not correct and also looks wrong the strict_std_compliance check that was before this cannot be just droped If you want jpeg images to interoperate with all software they must be full range the limited range is a not entirely official feature. So it should not be used by default (that is AFAIK, things may have changed and maybe theres a official way now but from what i remember there was not for images) [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Never trust a computer, one day, it may think you are the virus. -- Compn
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