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• How to play HDR10 videos using ffplay and ffmpeg ?

  6 janvier 2023, par befandy

  I'm trying to play on Windows a HDR10 video. My display support 10 bits HDR content.
The command that I'm using to play the HDR10 video is the following.
ffplay -sws_flags print_info -i video.mp4

  


  But the output looks washed out.

  


  the log are the following :

  


  ffplay version 2022-03-28-git-5ee198f9aa-full_build-www.gyan.dev Copyright (c) 2003-2022 the FFmpeg developers built with gcc 11.2.0 (Rev7, Built by MSYS2 project) configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint libavutil      57. 24.101 / 57. 24.101 libavcodec     59. 25.100 / 59. 25.100 libavformat    59. 20.101 / 59. 20.101 libavdevice    59.  6.100 / 59.  6.100 libavfilter     8. 29.100 /  8. 29.100 libswscale      6.  6.100 /  6.  6.100 libswresample   4.  6.100 /  4.  6.100 libpostproc    56.  5.100 / 56.  5.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.mp4':=0/0 Metadata: major_brand     : isom minor_version   : 512 compatible_brands: isomiso2mp41 encoder         : Lavf58.29.100 Duration: 00:00:08.78, start: 0.000000, bitrate: 159424 kb/s Stream #0:0[0x1](und): Video: hevc (Main 10) (hev1 / 0x31766568), yuv420p10le(tv, bt2020nc/bt2020/smpte2084, progressive), 3840x2160 [SAR 1:1 DAR 16:9], 159427 kb/s, 60 fps, 60 tbr, 15360 tbn (default) Metadata: handler_name    : VideoHandler vendor_id       : [0][0][0][0] [swscaler @ 000001d62a81d000] [swscaler @ 000001d622aebf80] bicubic scaler, from yuv420p10le to yuv420p using MMXEXT [swscaler @ 000001d62a81d000] [swscaler @ 000001d622aebf80] using unscaled yuv420p10le -> yuv420p special converter [swscaler @ 000001d62a81d000] [swscaler @ 000001d635638600] bicubic scaler, from yuv420p10le to yuv420p using MMXEXT [swscaler @ 000001d62a81d000] [swscaler @ 000001d635638600] using unscaled yuv420p10le -> yuv420p special converter [swscaler @ 000001d62a81d000] [swscaler @ 000001d635661d80] bicubic scaler, from yuv420p10le to yuv420p using MMXEXT [swscaler @ 000001d62a81d000] [swscaler @ 000001d635661d80] using unscaled yuv420p10le -> yuv420p special converter [swscaler @ 000001d62a81d000] [swscaler @ 000001d63567df80] bicubic scaler, from yuv420p10le to yuv420p using MMXEXT [swscaler @ 000001d62a81d000] [swscaler @ 000001d63567df80] using unscaled yuv420p10le -> yuv420p special converter [swscaler @ 000001d62a81d000] [swscaler @ 000001d6356bbf80] bicubic scaler, from yuv420p10le to yuv420p using MMXEXT 3.44 M-V:  0.204 fd=  91 aq=    0KB vq=15552KB sq=    0B f=0/0

  


  With the help of '-sws_flags print_info' flag we can see that there is a downscaling happening from 10 bits to 8 bits "yuv420p10le -> yuv420p"

  


  I have try to play the video using VLC and it is working fine on my display : colour are vivid and display bright.

  


  I have also try to decode first the video and then past metadata directly to ffplay as follow.
Decoding to yuv format with : ffmpeg -i video.mp4 video.yuv
Then play yuv file : ffplay -framerate 60 -video_size 3840x2160 -pixel_format yuv420p10le -color_range tv -color_trc smpte2084 -color_primaries bt2020 -colorspace bt2020nc -i video.yuv

  


  But the result is the same washed out color and "yuv420p10le -> yuv420p" conversion

  


  Is there a way to play a HDR video (encoded or decoded stream) with ffplay ?

  


• ffmeg does not convert all of the frames to video

  13 janvier 2018, par Z.Grey

  I have in total 7 frames and try to convert them a slideshow video. But whatever I tried with ffmeg I always end up with only 3 frames, here is my codes
  ffmpeg -f image2 -i gif%01d.png -vframes 7 test.mp4

  The sequence of images is gif0.png gif1.png.. gif6.png. I want all of them show up in the video but unfortunately, I always have the first 3 images in the video. Would you give a hint to convert all the frames to the video, please ?
  The log file

   [zgrey@skyler:Zelda]$ ffmpeg -f image2 -i gif%01d.png -vframes 7 test.mp4
  
  ffmpeg version 3.3.3 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
  
    configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libfreetype --enable-gnutls --disable-ffserver --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libtheora --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvidstab --enable-libwavpack --enable-nvenc --enable-libzimg
  
    libavutil      55. 58.100 / 55. 58.100
  
    libavcodec     57. 89.100 / 57. 89.100
  
    libavformat    57. 71.100 / 57. 71.100
  
    libavdevice    57.  6.100 / 57.  6.100
  
    libavfilter     6. 82.100 /  6. 82.100
  
    libavresample   3.  5.  0 /  3.  5.  0
  
    libswscale      4.  6.100 /  4.  6.100
  
    libswresample   2.  7.100 /  2.  7.100
  
    libpostproc    54.  5.100 / 54.  5.100
  
  Input #0, image2, from 'gif%01d.png':
  
    Duration: 00:00:00.28, start: 0.000000, bitrate: N/A
  
      Stream #0:0: Video: png, pal8(pc), 736x727 [SAR 72:72 DAR 736:727], 25 fps, 25 tbr, 25 tbn, 25 tbc
  
  File 'test.mp4' already exists. Overwrite ? [y/N] y
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (png (native) -> h264 (libx264))
  
  Press [q] to stop, [?] for help
  
  No pixel format specified, yuv444p for H.264 encoding chosen.
  
  Use -pix_fmt yuv420p for compatibility with outdated media players.
  
  [libx264 @ 0x3a9fee0] using SAR=1/1
  
  [libx264 @ 0x3a9fee0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
  
  [libx264 @ 0x3a9fee0] profile High 4:4:4 Predictive, level 3.1, 4:4:4 8-bit
  
  [libx264 @ 0x3a9fee0] 264 - core 148 r2643 5c65704 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Output #0, mp4, to 'test.mp4':
  
    Metadata:
  
      encoder         : Lavf57.71.100
  
      Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv444p, 736x727 [SAR 1:1 DAR 736:727], q=-1--1, 25 fps, 12800 tbn, 25 tbc
  
      Metadata:
  
        encoder         : Lavc57.89.100 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
  frame=    7 fps=0.0 q=-1.0 Lsize=     107kB time=00:00:00.16 bitrate=5496.7kbits/s speed=0.264x    
  
  video:106kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.860164%
  
  [libx264 @ 0x3a9fee0] frame I:1     Avg QP:24.11  size: 77212
  
  [libx264 @ 0x3a9fee0] frame P:2     Avg QP:30.73  size:  6544
  
  [libx264 @ 0x3a9fee0] frame B:4     Avg QP:32.11  size:  4516
  
  [libx264 @ 0x3a9fee0] consecutive B-frames: 14.3% 28.6%  0.0% 57.1%
  
  [libx264 @ 0x3a9fee0] mb I  I16..4:  5.2% 63.8% 31.0%
  
  [libx264 @ 0x3a9fee0] mb P  I16..4:  0.4%  2.3%  5.6%  P16..4:  5.3%  0.5%  0.1%  0.0%  0.0%    skip:85.8%
  
  [libx264 @ 0x3a9fee0] mb B  I16..4:  0.2%  0.3%  3.8%  B16..8:  5.5%  0.3%  0.1%  direct: 0.1%  skip:89.6%  L0:47.4% L1:52.3% BI: 0.3%
  
  [libx264 @ 0x3a9fee0] 8x8 transform intra:52.1% inter:31.9%
  
  [libx264 @ 0x3a9fee0] coded y,u,v intra: 81.0% 45.2% 41.2% inter: 0.6% 0.5% 0.4%
  
  [libx264 @ 0x3a9fee0] i16 v,h,dc,p: 18% 30% 43%  9%
  
  [libx264 @ 0x3a9fee0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12% 19% 36%  5%  5%  5%  7%  5%  7%
  
  [libx264 @ 0x3a9fee0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 26% 16%  6%  6%  5%  7%  4%  6%
  
  [libx264 @ 0x3a9fee0] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 0x3a9fee0] ref P L0: 32.6%  5.7% 45.0% 16.7%
  
  [libx264 @ 0x3a9fee0] ref B L0: 78.1% 21.9%
  
  [libx264 @ 0x3a9fee0] ref B L1: 96.7%  3.3%
  
  [libx264 @ 0x3a9fee0] kb/s:3096.03

• Turning images into videos with ffmpeg

  9 décembre 2014, par user3276588

  I asked this on another forum but never had any luck. I found the following command online that is supposed to create a video from images(duration of 5 seconds each) using FFmpeg.

  ffmpeg -f image2 -r 1/5 -i img%03d.png -vcodec libx264 out.mp4

  I have ran that and I have two images named img001.png and img002.png, however when I play out.mp4, it’s only a 5 second clip with img001.png being played. What’s really strange as well, is in my Windows Media Player, it thinks it’s 10 seconds long (2 images @ 10 seconds), but when the gauge gets half way through(5 seconds) the video, it ends.

  Any suggestions of what could be going on ?

  I also tried a bunch of other commands I found online but never had any luck. They would end up showing both images, but the first one would just flash for a fraction of a second, or some other ones would do the same thing would happen to the second image at the end of the video.

  I have it ImageMagick installed into XAMPP on my Windows Vista PC. I can provide my command line output from the command if needed.

  Edit : Added command line output

  C:\xampp\htdocs>ffmpeg -f image2 -r 1/5 -i img%03d.png -vcodec libx264 out.mp4
  
  ffmpeg version N-50911-g9efcfbe Copyright (c) 2000-2013 the FFmpeg developers
  
    built on Mar 13 2013 21:26:48 with gcc 4.7.2 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
  
  isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
  
  le-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libg
  
  sm --enable-libilbc --enable-libmp3lame --enable-libopencore-amrnb --enable-libo
  
  pencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-li
  
  bschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-lib
  
  twolame --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enabl
  
  e-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
  
    libavutil      52. 19.100 / 52. 19.100
  
    libavcodec     55.  0.100 / 55.  0.100
  
    libavformat    55.  0.100 / 55.  0.100
  
    libavdevice    54.  4.100 / 54.  4.100
  
    libavfilter     3. 45.103 /  3. 45.103
  
    libswscale      2.  2.100 /  2.  2.100
  
    libswresample   0. 17.102 /  0. 17.102
  
    libpostproc    52.  2.100 / 52.  2.100
  
  Input #0, image2, from 'img%03d.png':
  
    Duration: 00:00:10.00, start: 0.000000, bitrate: N/A
  
      Stream #0:0: Video: png, rgb24, 800x600 [SAR 1:1 DAR 4:3], 0.20 tbr, 0.20 tb
  
  n, 0.20 tbc
  
  [libx264 @ 0032cae0] using SAR=1/1
  
  [libx264 @ 0032cae0] using cpu capabilities: MMX2 SSE2Slow SlowCTZ
  
  [libx264 @ 0032cae0] profile High 4:4:4 Predictive, level 3.1, 4:4:4 8-bit
  
  [libx264 @ 0032cae0] 264 - core 130 r2274 c832fe9 - H.264/MPEG-4 AVC codec - Cop
  
  yright 2003-2013 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 de
  
  block=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1
  
  me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chr
  
  oma_qp_offset=4 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 i
  
  nterlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1
  
  b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=1 scenecu
  
  t=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0
  
   qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Output #0, mp4, to 'out.mp4':
  
    Metadata:
  
      encoder         : Lavf55.0.100
  
      Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv444p, 800x600 [SAR 1:1
  
   DAR 4:3], q=-1--1, 16384 tbn, 0.20 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (png -> libx264)
  
  Press [q] to stop, [?] for help
  
  frame=    2 fps=0.0 q=2621023.0 Lsize=      37kB time=00:00:10.00 bitrate=  30.0
  
  kbits/s
  
  video:36kB audio:0kB subtitle:0 global headers:0kB muxing overhead 2.142993%
  
  [libx264 @ 0032cae0] frame I:1     Avg QP:11.18  size: 17627
  
  [libx264 @ 0032cae0] frame P:1     Avg QP:11.45  size: 18415
  
  [libx264 @ 0032cae0] mb I  I16..4: 18.3% 69.5% 12.3%
  
  [libx264 @ 0032cae0] mb P  I16..4: 11.6% 60.1%  9.7%  P16..4:  8.9%  6.6%  2.2%
  
   0.0%  0.0%    skip: 0.8%
  
  [libx264 @ 0032cae0] 8x8 transform intra:71.4% inter:67.1%
  
  [libx264 @ 0032cae0] coded y,u,v intra: 57.0% 24.1% 22.3% inter: 42.6% 25.7% 16.
  
  4%
  
  [libx264 @ 0032cae0] i16 v,h,dc,p: 28% 50% 15%  8%
  
  [libx264 @ 0032cae0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 39% 28%  2%  2%  2%  3%
  
   3%  4%
  
  [libx264 @ 0032cae0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 14% 53% 23%  1%  2%  2%  3%
  
   0%  2%
  
  [libx264 @ 0032cae0] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 0032cae0] kb/s:28.83
  
  
  
  C:\xampp\htdocs>