Valerii Zapodovnikov

You are using command `cjpegHTJ2K_j2c.exe -i Stationery.yuv -o Stationery_openjph.j2c -dims {4000,3000} -num_comps 3 -signed false -bit_depth 8 -downsamp {1,1},{2,2},{2,2} -block_size {64,64} -precincts {128,128},{256,256} -prog_order CPRL -qstep 0.048` that looks like...

Also see implementation https://github.com/jarrelscy/openjpeg/commits/master

>Feb 27 18:36 : ffmpeg/mov,mp4,m4a,3gp,3g2,mj2: type:'trun' parent:'traf' sz: 380 44 416 Feb 27 18:36 : ffmpeg/mov,mp4,m4a,3gp,3g2,mj2: flags 0xe01 entries 30 Feb 27 18:36 : ffmpeg/mov,mp4,m4a,3gp,3g2,mj2: found sidx time -9223372036854775808, using...

> Video Files are mostly encoded in Matroska Container Format. Not really compatible with 24.000 and 24/1.001 framerate, not reference container for EAC3 or TrueHD, bugs in ffmpeg introducing VFR...

This has nothing to do with bt2020 or 10 bit. This is PQ (smpte2084) that makes the difference.

LOL, what? Tnis is not a white square. This is .notdef glyph of ttf and otf fonts.

It is only supported on Ice Lake HW encoder. https://github.com/FFmpeg/FFmpeg/commit/c4ae6908f28ceacb39b96de9f8761aae1968bf42 No decoder yet either.

> the `-x264-params` version: Do not use those. They are not to be used. > Example script looks like: This does nothing, just tags. You need to -vf scale it.

> would accelerating encoding/decoding be of any real benefit? Intel HW jpeg decoder is used in some applications and is to be supported in Chrome. Same from nvJPEG library.

BTW, I totally missed this! Wow. https://docs.nvidia.com/cuda/nvjpeg2000/userguide.html This whole thing aged badly. https://developer.nvidia.com/nvjpeg