I hope that FFMPEG can re-encode 12-BIT APPLE PRORES MXF encoded by ADOBE PREMIERE WITHOUT A BIT-DEPTH degrade.

[李星辰]

Summary of the bug:

FFMPEG CANNOT RE-ENCODE 12-BIT APPLE PRORES MXF encoded by ADOBE PREMIERE PRO CC2018 and higher version WITHOUT A BIT-DEPTH degrade.

How to reproduce:

% ffmpeg -c:v prores -i input.mxf -c:v prores -profile:v 5 -pix_fmt yuv444p12le -f mxf output.mxf

ffmpeg version: N-113169-ge1c1dc8347-tessus

built on 2024-01-01 13:50

"/Users/lixingchen/Downloads/ffmpeg 3" \
-r 60/1 -f mxf -i \
"/Volumes/A029/T203/00015.MXF" \
-map 0:v:0 -map 0:a:0 \
-vsync cfr -pix_fmt yuv444p12 -r 60/1 -timecode 00:09:50:00 -strict unofficial \ 
-c:v prores -profile:v 5 -c:a copy \
-r 60/1 \
-f mxf -signal_standard 7 \
"/Volumes/A029/T203/00015-1.MXF"
ffmpeg version N-113169-ge1c1dc8347-tessus  https://evermeet.cx/ffmpeg/  Copyright (c) 2000-2024 the FFmpeg developers
  built with Apple clang version 11.0.0 (clang-1100.0.33.17)
  configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvmaf --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-version3 --pkg-config-flags=--static --disable-ffplay
  libavutil      58. 36.100 / 58. 36.100
  libavcodec     60. 36.100 / 60. 36.100
  libavformat    60. 20.100 / 60. 20.100
  libavdevice    60.  4.100 / 60.  4.100
  libavfilter     9. 16.100 /  9. 16.100
  libswscale      7.  6.100 /  7.  6.100
  libswresample   4. 13.100 /  4. 13.100
  libpostproc    57.  4.100 / 57.  4.100
-vsync is deprecated. Use -fps_mode
[mxf @ 0x7f9dfab04500] Stream #0: not enough frames to estimate rate; consider increasing probesize
[aist#0:1/pcm_s24le @ 0x7f9dd9f04b80] Guessed Channel Layout: stereo
Input #0, mxf, from '/Volumes/A029/T203/00015.MXF':
  Metadata:
    operational_pattern_ul: 060e2b34.04010101.0d010201.01010900
    uid             : adab4424-2f25-4dc7-92ff-000c00000000
    generation_uid  : adab4424-2f25-4dc7-92ff-000c00000001
    company_name    : FFmpeg
    product_name    : OP1a Muxer
    product_version_num: 60.20.100.0.0
    product_version : 60.20.100
    application_platform: Lavf (darwin)
    product_uid     : adab4424-2f25-4dc7-92ff-29bd000c0002
    toolkit_version_num: 60.20.100.0.0
    material_package_umid: 0x060A2B340101010501010D0013AA87EC5294713403AA87EC005294713403AA00
    timecode        : 00:09:50:00
  Duration: 00:00:44.00, start: 0.000000, bitrate: 2051728 kb/s
  Stream #0:0: Video: h264 (High 10), yuv420p10le(tv, bt709, progressive), 4096x2160 [SAR 1:1 DAR 256:135], 60 tbr, 60 tbn
      Metadata:
        file_package_umid: 0x060A2B340101010501010D0013AA87EC5294713403AA87EC005294713403AA01
  Stream #0:1: Audio: pcm_s24le, 48000 Hz, 2 channels, s32 (24 bit), 2304 kb/s
      Metadata:
        file_package_umid: 0x060A2B340101010501010D0013AA87EC5294713403AA87EC005294713403AA01

Multiple -r options specified for stream 0, only the last option '-r 60/1' will be used.

**Incompatible pixel format 'yuv444p12le' for codec 'prores', auto-selecting format 'yuv444p10le'**

Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> prores (native))
  Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
Output #0, mxf, to '/Volumes/A029/T203/00015-1.MXF':
  Metadata:
    operational_pattern_ul: 060e2b34.04010101.0d010201.01010900
    uid             : adab4424-2f25-4dc7-92ff-000c00000000
    generation_uid  : adab4424-2f25-4dc7-92ff-000c00000001
    product_uid     : adab4424-2f25-4dc7-92ff-29bd000c0002
    material_package_umid: 0x060A2B340101010501010D0013AA87EC5294713403AA87EC005294713403AA00
    product_version_num: 60.20.100.0.0
    toolkit_version_num: 60.20.100.0.0
    application_platform: Lavf (darwin)
    timecode        : 00:09:50:00
    encoder         : Lavf60.20.100
  Stream #0:0: Video: prores (XQ) (ap4x / 0x78347061), yuv444p10le(tv, bt709, progressive), 4096x2160 [SAR 1:1 DAR 256:135], q=2-31, 200 kb/s, 60 fps, 60 tbn
      Metadata:
        file_package_umid: 0x060A2B340101010501010D0013AA87EC5294713403AA87EC005294713403AA01
        encoder         : Lavc60.36.100 prores
  Stream #0:1: Audio: pcm_s24le, 48000 Hz, stereo, s32 (24 bit), 2304 kb/s
      Metadata:
        file_package_umid: 0x060A2B340101010501010D0013AA87EC5294713403AA87EC005294713403AA01
frame=    4 fps=2.0 q=-0.0 size=   19968kB time=00:00:00.06 bitrate=2453655.6kbiframe=    8 fps=3.2 q=-0.0 size=   39936kB time=00:00:00.13 bitrate=2453674.0kbiframe=   12 fps=4.0 q=-0.0 size=   55040kB time=00:00:00.20 bitrate=2254438.4kbiframe=   17 fps=4.8 q=-0.0 size=   80128kB time=00:00:00.28 bitrate=2316738.9kbiframe=   26 fps=6.5 q=-0.0 size=  125440kB time=00:00:00.43 bitrate=2371396.8kbiframe=   29 fps=6.4 q=-0.0 size=  145664kB time=00:00:00.48 bitrate=2468855.8kbiframe=   39 fps=7.8 q=-0.0 size=  193024kB time=00:00:00.65 bitrate=2432696.3kbiframe=   44 fps=8.0 q=-0.0 size=  220416kB time=00:00:00.73 bitrate=2462248.2kbiframe=   54 fps=9.0 q=-0.0 size=  272896kB time=00:00:00.90 bitrate=2483960.0kbiframe=   59 fps=9.1 q=-0.0 size=  297984kB time=00:00:00.98 bitrate=2482460.1kbiframe=   65 fps=9.3 q=-0.0 size=  328192kB time=00:00:01.08 bitrate=2481738.2kbiframe=   74 fps=9.8 q=-0.0 size=  373504kB time=00:00:01.23 bitrate=2480874.8kbiframe=   79 fps=9.8 q=-0.0 size=  398592kB time=00:00:01.31 bitrate=2479948.0kbiframe=   88 fps= 10 q=-0.0 size=  443904kB time=00:00:01.46 bitrate=2479405.1kbiframe=   92 fps= 10 q=-0.0 size=  463872kB time=00:00:01.53 bitrate=2478287.1kbiframe=  103 fps= 11 q=-0.0 size=  519168kB time=00:00:01.71 bitrate=2477489.4kbiframe=  108 fps= 11 q=-0.0 size=  544512kB time=00:00:01.80 bitrate=2478134.6kbiframe=  114 fps= 11 q=-0.0 size=  574720kB time=00:00:01.90 bitrate=2477950.7kbiframe=  122 fps= 11 q=-0.0 size=  615168kB time=00:00:02.03 bitrate=2478421.5kbiframe=  128 fps= 11 q=-0.0 size=  645376kB time=00:00:02.13 bitrate=2478244.2kbiframe=  138 fps= 11 q=-0.0 size=  699136kB time=00:00:02.30 bitrate=2490140.0kbiframe=  141 fps= 11 q=-0.0 size=  714496kB time=00:00:02.35 bitrate=2490702.7kbiframe=  147 fps= 11 q=-0.0 size=  744704kB time=00:00:02.45 bitrate=2490047.0kbiframe=  154 fps= 11 q=-0.0 size=  779776kB time=00:00:02.56 bitrate=2488801.6kbiframe=  160 fps= 11 q=-0.0 size=  809984kB time=00:00:02.66 bitrate=2488270.5kbiframe=  170 fps= 12 q=-0.0 size=  860416kB time=00:00:02.83 bitrate=2487716.0kbiframe=  176 fps= 12 q=-0.0 size=  890624kB time=00:00:02.93 bitrate=2487270.2kbiframe=  184 fps= 12 q=-0.0 size=  930816kB time=00:00:03.06 bitrate=2486492.6kbiframe=  189 fps= 12 q=-0.0 size=  955904kB time=00:00:03.15 bitrate=2485957.3kbiframe=  195 fps= 12 q=-0.0 size=  986112kB time=00:00:03.25 bitrate=2485609.1kbiframe=  202 fps= 12 q=-0.0 size= 1021952kB time=00:00:03.36 bitrate=2486682.2kbiframe=  208 fps= 12 q=-0.0 size= 1053952kB time=00:00:03.46 bitrate=2490569.4kbiframe=  218 fps= 12 q=-0.0 size= 1107712kB time=00:00:03.63 bitrate=2497535.1kbiframe=  223 fps= 12 q=-0.0 size= 1133312kB time=00:00:03.71 bitrate=2497961.7kbiframe=  234 fps= 12 q=-0.0 size= 1188608kB time=00:00:03.90 bitrate=2496686.3k ...

Patches should be submitted to the ffmpeg-devel mailing list and not this bug tracker.

[Balling]

Dup of #8054

[李星辰]

Replying to Balling:

Dup of #8054

But in #8054, nobody tells the composer how to solve this problem.

The ONE SOLUTION is to do a workaround to encode as something else fighting with a time-wasting encoder like libopenjpeg which supports 12-BIT YUV OR RGB. This time-wasting workaround is NOT and definitely SHOULD NOT included in my film-process work.

And the OTHER SOLUTION is to make a VERY HUGE FILE of a few TBs with a no-time-wasting encoder like RGB 12-BIT DPX, with a no-need cost of several Seagate EXOS hard disks.

this is the two possible workaround to maintain original 12-BIT RGB OR YUV IMAGE:

1. % ffmpeg -c:v prores -i input.mxf -c:v libopenjpeg -pix_fmt yuv444p12le -f mxf output.mxf

-- a time-wasting encoder but the output file will be highly compressed

2. % ffmpeg -c:v prores -i input.mxf -c:v dpx -pix_fmt gbrp12le -f image2 output.%06d.dpx

-- a no-time-wasting encoder but the output file will be a few TBs, requires the cost of an extra hard disk.

[Tomas Härdin]

This does not appear to have anything to do with MXF. Try using the HT (high-throughput) mode in libopenjpeg. I forget whether lavc's native encoder has support for high-bitdepth HTJ2K. Also I don't think this should be marked as "critical".