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• H.264 to DNxHR 444 issue. Colors are not transcoded correctly (HDR project)

  21 janvier 2020, par Raulo1985

  I’m having an issue transcoding a H.264 UHD HDR file to a DNxHR file in a mxf container with FFmpeg. The issue is that both files don’t look the same at all, the colors look washed out on the DNxHR video, and I tried to make the transcoding as lossless as possible (DNxHR 444 flavor). The original file is a movie I ripped a while ago, H.264, UHD, HDR, in a mkv container.

  My goal : to create an almost lossless DNxHR file to use it as source file in Adobe Premiere Pro, and use another DNxHR file with less quality as proxy for editing. I wanted to do it that way and not use the original H.264 as the source file because it’s out of sync with the proxy file (I mean, when I toggle the proxy icon on and off, you can tell that there’s a short delay between them, which defeats all purposes for editing). My guess is that it may be because H.264 is compressed and DNxHR isn’t, and since I edit making a lot of fast cuts, I need both the source file and the proxy file to be as synced as possible. When the source file and the proxy file are both DNxHR, no matter the flavor, they are perfectly synced. I don’t want to go with Prores for the proxies, because the sync problem is a lot worse (several seconds of delay between files), maybe because it’s a VBR codec and my original file and DNxHR are CBR (for the record, I always prefer CBR).

  Well, the thing is that when I import the original H.264 file to Premiere Pro, use a DNxHR proxy, edit a little, and export it directly from the original file (H.264 10 bits, with all the settings required for HDR output enabled) the colors look as they should. When I do the same with the high quality DNxHR as source file, with the exact same export settings, the colors look washed out. The same with any DNxHR flavor.

  Then I opened both files (original H.264 and high quality DNxHR transcoded from the H.264 one) with VLC, and I also can tell that the mxf file looks washed out and the H.264 file doesn’t. So it’s not an export issue on Premiere’ side, it’s something that has to do with the original transcoding.

  I understand that DNxHR 444 is as lossless as you can get with that codec, preserving all the HDR required data, and I believe that the mfx container has some advantages over MOV, which is the other container that supports DNxHD/DNxHR. So I don’t know what’s happening really.

  The command I used was :

  ffmpeg -channel_layout 63 -i input.mkv -map 0:0 -c:v dnxhd -vf "scale=in_range=limited:out_range=full" -color_range 2 -profile:v dnxhr_444 -pix_fmt yuv444p10le -acodec pcm_s24le -ar 48000 -ac 6 -channel_layout 63 -map 0:2 -hide_banner output.mxf

  Like I said, after the transcoding, both video files look a lot different from each other, color wise. And after using them in Premiere and exporting with the exact same settings, the output files suffer from the same difference.

  Mediainfo shows the expected data for both files :
   10 bits, main 10, level 5, 4:2:0, CBR, BT.2020 for the original h.264 file.
   10 bits, 4:4:4, CBR for the DNxHR 444 file.

  One thing I noticed in Mediainfo is that both have YUV as color space, but the DNxHR 444 video has an extra field that says ColorSpace_Original : RGB. Honestly, I don’t know what that means, since the original is YUV. Color range is fine, from 0 to 1023 (and chroma range 1023). The other thing is that it says "limited" on the color range field of the H.264 file, but I’ve read that that could be a bug or missinterpretation of the file by Mediainfo.

  Well, that’s it, any help would be appreciated. I’d really like to edit with DNxHR 444 as source file and DNxHR LB for the proxies, so I can edit in a fast pace and without sync issues, but the color is just not acceptable. And I do understand that I’m adding an extra transcoding step (from original to DNxHR), but the sync issue between the original and the DNxHR proxies, even though it may be a delay of a fraction of a second, makes my workflow a lot harder since I’ll have to export many times to see if the cuts are made exactly where I want them to be. Not ideal by any means. And Prores is not an option apparently, the sync issue is a lot worse. For me, it all comes down to being able to get a DNxHR 444 file that looks, well, as close to lossless as it can be, and that goal obviously involves the colors.

  Thanks in advance.

  PS : file size is not an issue for me, so having an entire UHD HDR movie transcoded to DNxHR 444 is not a problem.

  PS2 : I tried with a different chroma subsampling (like DNxHR HQX 10 bits, which is 4:2:2), same result. Haven´t tried with 8 bits yet, but I don’t see the point since this is a HDR project.

  EXTRA INFO :

  1) FFprobe output of the MXF DNxHR file (this one is 4:2:2, the only difference with the command used compared to the one stated on the OP is -pix_fmt yuv444p10le being -pix_fmt yuv422p10le) :

    libavutil      56. 31.100 / 56. 31.100
  
    libavcodec     58. 54.100 / 58. 54.100
  
    libavformat    58. 29.100 / 58. 29.100
  
    libavdevice    58.  8.100 / 58.  8.100
  
    libavfilter     7. 57.100 /  7. 57.100
  
    libswscale      5.  5.100 /  5.  5.100
  
    libswresample   3.  5.100 /  3.  5.100
  
    libpostproc    55.  5.100 / 55.  5.100
  
  [mxf @ 000001f4d17fbac0] Stream #0: not enough frames to estimate rate; consider increasing probesize
  
  Input #0, mxf, from 'Interstellar_Master_DNxHR_444_UHD_422_PCM24_5.1.mxf':
  
    Metadata:
  
      operational_pattern_ul: 060e2b34.04010101.0d010201.01010900
  
      uid             : adab4424-2f25-4dc7-92ff-29bd000c0000
  
      generation_uid  : adab4424-2f25-4dc7-92ff-29bd000c0001
  
      company_name    : FFmpeg
  
      product_name    : OP1a Muxer
  
      product_version : 58.29.100
  
      product_uid     : adab4424-2f25-4dc7-92ff-29bd000c0002
  
      material_package_umid: 0x060A2B340101010501010D001393EE79529471348D93EE7900529471348D9300
  
      timecode        : 00:00:00:00
  
    Duration: 02:49:03.97, start: 0.000000, bitrate: 1404833 kb/s
  
      Stream #0:0: Video: dnxhd (DNXHR 444), yuv444p10le(bt709/unknown/unknown, progressive), 3840x2160, SAR 1:1 DAR 16:9, 23.98 tbr, 23.98 tbn, 23.98 tbc
  
      Metadata:
  
        file_package_umid: 0x060A2B340101010501010D001393EE79529471348D93EE7900529471348D9301
  
      Stream #0:1: Audio: pcm_s24le, 48000 Hz, 6 channels, s32 (24 bit), 6912 kb/s
  
      Metadata:
  
        file_package_umid: 0x060A2B340101010501010D001393EE79529471348D93EE7900529471348D9301

  2) FFprobe output of the MP4 H.264 source file (this one is 4:2:0, 10 bits, HDR) :

      Stream #0:0(eng): Video: hevc (Main 10) (hev1 / 0x31766568), yuv420p10le(tv, bt2020nc/bt2020/smpte2084), 3840x2160 [SAR 1:1 DAR 16:9], 15584 kb/s, 23.98 fps, 23.98 tbr, 16k tbn, 23.98 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(eng): Audio: ac3 (ac-3 / 0x332D6361), 48000 Hz, 5.1(side), fltp, 640 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
      Side data:
  
        audio service type: main
  
      Stream #0:2(eng): Data: bin_data (text / 0x74786574)
  
      Metadata:
  
        handler_name    : SubtitleHandler
  
  Unsupported codec with id 100359 for input stream 2

• react-native-ffmpeg Unrecognized option 'preset'

  8 avril 2021, par Tommy Khumarga

  Below is my ffmpeg command :

  


  -y -i vidInput.mp4 -vcodec mpeg4 -b:v 1000k -b:a 48000 -preset ultrafast vidOutput.mp4

  


  And the result is :

  


  [Mon Jul 06 2020 20:42:08.171]  LOG      Unrecognized option 'preset'.
[Mon Jul 06 2020 20:42:08.172]  LOG      Error splitting the argument list:
[Mon Jul 06 2020 20:42:08.174]  LOG      Option not found


  


  Need advice...

  


• How to play two videos side by side using FFmpeg ?

  29 juin 2020, par user1hjgjhgjhggjhg

  Hello I want to create a duet video feature like tiktok. I am using FFmpeg. I have tried this code

  


  ffmpeg \
  -i movie_output.mp4 \
  -i movie_output.mp4 \
  -filter_complex  \
    "nullsrc=size=360x480[base]; 
     [0:v] setpts=PTS-STARTPTS, scale=360x480, crop=180:480:90:0[left];
     [1:v] setpts=PTS-STARTPTS, scale=360x480, crop=180:480:90:0 [right];
     [base][left] overlay=x=0:y=0[base1];
     [base1][right] overlay=shortest=1:x=180:y=0" \
  -c:v libx264 \
  -y result.mp4


  


  It gives me this error :

  


  No such filter: ' '
Error initializing complex filters.
Invalid argument


  


  Whole output

  


  ubuntu@ip-171-xx-xx-xxx: ffmpeg -i movie_output.mp4 -i movie_output.mp4 -filter_complex  "nullsrc=size=360x480[base]; \ [0:v] setpts=PTS-STARTPTS, scale=360x480, crop=180:480:90:0[left]; \ [1:v] setpts=PTS-STARTPTS, scale=360x480, crop=180:480:90:0 [right]; \ [base][left] overlay=x=0:y=0[base1]; \ [base1][right] overlay=shortest=1:x=180:y=0" -c:v libx264 -y result.mp4


ffmpeg version 3.4.6-0ubuntu0.18.04.1 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)
  configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  libavutil      55. 78.100 / 55. 78.100
  libavcodec     57.107.100 / 57.107.100
  libavformat    57. 83.100 / 57. 83.100
  libavdevice    57. 10.100 / 57. 10.100
  libavfilter     6.107.100 /  6.107.100
  libavresample   3.  7.  0 /  3.  7.  0
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'movie_output.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.45.100
    comment         : vid:v090440c0000brppph37mt2vmmsj1dig
  Duration: 00:00:08.04, start: 0.000000, bitrate: 1135 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 540x960 [SAR 1:1 DAR 9:16], 996 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 129 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'movie_output.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.45.100
    comment         : vid:v090440c0000brppph37mt2vmmsj1dig
  Duration: 00:00:08.04, start: 0.000000, bitrate: 1135 kb/s
    Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 540x960 [SAR 1:1 DAR 9:16], 996 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 129 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
[AVFilterGraph @ 0x560fd395e2e0] No such filter: ' '
Error initializing complex filters.
Invalid argument


  


  I have tried this as well

  


  ffmpeg \
  -report \
  -i "movie_output.mp4" \
  -i "movie_output.mp4" \
  -an \
  -filter_complex \
     "[0:v]trim=start=0:end=9,setpts=PTS-STARTPTS[firstclip];
      [1:v]trim=start=1,setpts=PTS-STARTPTS[secondclip];
      [0:v]trim=start=9:end=10,setpts=PTS-STARTPTS[fadeoutsrc];
      [1:v]trim=start=0:end=1,setpts=PTS-STARTPTS[fadeinsrc];
      [fadeinsrc]format=pix_fmts=yuva420p,fade=t=in:st=0:d=1:alpha=1[fadein];
      [fadeoutsrc]format=pix_fmts=yuva420p,fade=t=out:st=0:d=1:alpha=1[fadeout];
      [fadein]fifo[fadeinfifo];
      [fadeout]fifo[fadeoutfifo];
      [fadeoutfifo][fadeinfifo]overlay[crossfade];
      [firstclip][crossfade][secondclip]concat=n=3" \
  outputname.mp4


  


  Output :

  


  ffmpeg started on 2020-06-27 at 10:11:41
Report written to "ffmpeg-20200627-101141.log"
ffmpeg version 3.4.6-0ubuntu0.18.04.1 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)
  configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  libavutil      55. 78.100 / 55. 78.100
  libavcodec     57.107.100 / 57.107.100
  libavformat    57. 83.100 / 57. 83.100
  libavdevice    57. 10.100 / 57. 10.100
  libavfilter     6.107.100 /  6.107.100
  libavresample   3.  7.  0 /  3.  7.  0
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'movie_output.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.45.100
    comment         : vid:v090440c0000brppph37mt2vmmsj1dig
  Duration: 00:00:08.04, start: 0.000000, bitrate: 1135 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 540x960 [SAR 1:1 DAR 9:16], 996 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 129 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'movie_output.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.45.100
    comment         : vid:v090440c0000brppph37mt2vmmsj1dig
  Duration: 00:00:08.04, start: 0.000000, bitrate: 1135 kb/s
    Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 540x960 [SAR 1:1 DAR 9:16], 996 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 129 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
[NULL @ 0x562dea344220] Unable to find a suitable output format for ' -filter_complex'
 -filter_complex: Invalid argument


  


  This code gives this error

  


  Unable to find a suitable output format for ' -filter_complex'
     -filter_complex: Invalid argument


  


  Anyone can help ?