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• "Pixel format 'yuvj420p' is not supported" when converting image to video using CUDA hardware acceleration

  11 février 2020, par laurent

  I’m trying to convert an image to a video using CUDA hardware acceleration but I can’t get it to work.

  The basic command I have is this one :

  ffmpeg -y -hwaccel cuvid -i tests/MediaSamples/portrait_0.jpg -t 10 out.mp4

  And I’m getting this error :

  [AVHWFramesContext @ 0x32d3f00] Pixel format 'yuvj420p' is not supported
  
  [mjpeg @ 0x2d18480] Error initializing a CUDA frame pool
  
  cuvid hwaccel requested for input stream #0:0, but cannot be initialized.
  
  Error while decoding stream #0:0: Invalid argument

  I’ve tried setting the pixel format like so, but that didn’t help :

  ffmpeg -y -hwaccel cuvid -pix_fmt yuv420p -i tests/MediaSamples/portrait_0.jpg -t 10 out.mp4

  I’ve also tried many other flags but can’t get anything to work. Any idea what the issue might be ?

  For information this is the full log :

  ffmpeg version N-96615-gc35382a Copyright (c) 2000-2020 the FFmpeg developers
  
    built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.12) 20160609
  
    configuration: --enable-nonfree --disable-shared --enable-gpl --enable-openssl --enable-libx264 --enable-cuda-sdk --enable-nvenc --enable-cuda --enable-cuvid --enable-libnpp --extra-cflags='-I/usr/local/ssl/include -I/usr/local/cuda/include -I/usr/local/include -L/usr/local/ssl/lib -Wl,-rpath=/usr/local/ssl/lib' --extra-ldflags=-L/usr/local/cuda/lib64
  
    libavutil      56. 38.100 / 56. 38.100
  
    libavcodec     58. 67.101 / 58. 67.101
  
    libavformat    58. 37.100 / 58. 37.100
  
    libavdevice    58.  9.103 / 58.  9.103
  
    libavfilter     7. 73.100 /  7. 73.100
  
    libswscale      5.  6.100 /  5.  6.100
  
    libswresample   3.  6.100 /  3.  6.100
  
    libpostproc    55.  6.100 / 55.  6.100
  
  Input #0, image2, from 'tests/MediaSamples/portrait_0.jpg':
  
    Duration: 00:00:00.04, start: 0.000000, bitrate: 40237 kb/s
  
      Stream #0:0: Video: mjpeg (Progressive), yuvj420p(pc, bt470bg/unknown/unknown), 1600x900 [SAR 72:72 DAR 16:9], 25 tbr, 25 tbn, 25 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
  
  Press [q] to stop, [?] for help
  
  [AVHWFramesContext @ 0x32d3f00] Pixel format 'yuvj420p' is not supported
  
  [mjpeg @ 0x2d18480] Error initializing a CUDA frame pool
  
  cuvid hwaccel requested for input stream #0:0, but cannot be initialized.
  
  Error while decoding stream #0:0: Invalid argument
  
  [libx264 @ 0x2d1e840] using SAR=1/1
  
  [libx264 @ 0x2d1e840] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
  
  [libx264 @ 0x2d1e840] profile High, level 4.0
  
  [libx264 @ 0x2d1e840] 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=-2 threads=24 lookahead_threads=4 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 'out.mp4':
  
    Metadata:
  
      encoder         : Lavf58.37.100
  
      Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuvj420p(pc), 1600x900 [SAR 72:72 DAR 16:9], q=-1--1, 25 fps, 12800 tbn, 25 tbc
  
      Metadata:
  
        encoder         : Lavc58.67.101 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
  
  frame=    0 fps=0.0 q=0.0 Lsize=       0kB time=00:00:00.00 bitrate=N/A speed=   0x
  
  video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
  
  Conversion failed!

• Using libav-tools versus libav built from source - video quality much worse

  17 juin 2015, par kislo

  We are trying to create a video from still images, running on Ubuntu 14.04.

  If we have installed libav-tools then the output video is much higher quality than if we have installed libav manually. Unfortunately, we need to run a solution where libav is built from source, so we want to find out how to improve the quality.

  Here is the console output for the libav-tools (higher quality) :

  avconv version 9.18-6:9.18-0ubuntu0.14.04.1, Copyright (c) 2000-2014 the Libav developers
  
    built on Mar 16 2015 13:19:10 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
  
  [image2 @ 0x22ae120] max_analyze_duration reached
  
  Input #0, image2, from 'frame.%04d.jpg':
  
    Duration: 00:00:10.00, start: 0.000000, bitrate: N/A
  
      Stream #0.0: Video: mjpeg, yuvj420p, 1280x720 [PAR 1:1 DAR 16:9], 8 fps, 8 tbr, 8 tbn
  
  [libx264 @ 0x22afac0] using SAR=1/1
  
  [libx264 @ 0x22afac0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
  
  [libx264 @ 0x22afac0] profile High, level 3.1
  
  [libx264 @ 0x22afac0] 264 - core 142 r2389 956c8d8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - 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=-2 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=8 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=1.25 aq=1:1.00
  
  Output #0, mp4, to 'a1.mp4':
  
    Metadata:
  
      encoder         : Lavf54.20.4
  
      Stream #0.0: Video: libx264, yuvj420p, 1280x720 [PAR 1:1 DAR 16:9], q=-1--1, 8 tbn, 8 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (mjpeg -> libx264)
  
  Press ctrl-c to stop encoding
  
  frame=  159 fps= 43 q=32766.0 Lsize=    1580kB time=19.62 bitrate= 659.3kbits/s    
  
  video:607kB audio:0kB global headers:0kB muxing overhead 160.388953%
  
  [libx264 @ 0x22afac0] frame I:21    Avg QP:14.32  size: 21142
  
  [libx264 @ 0x22afac0] frame P:132   Avg QP:16.12  size:  8691
  
  [libx264 @ 0x22afac0] frame B:6     Avg QP:13.61  size:  3874
  
  [libx264 @ 0x22afac0] consecutive B-frames: 95.0%  0.0%  0.0%  5.0%
  
  [libx264 @ 0x22afac0] mb I  I16..4: 37.4% 61.4%  1.2%
  
  [libx264 @ 0x22afac0] mb P  I16..4:  9.1% 19.2%  0.3%  P16..4:  6.2%  2.8%  1.3%  0.0%  0.0%    skip:61.1%
  
  [libx264 @ 0x22afac0] mb B  I16..4:  1.8%  2.0%  0.0%  B16..8: 31.9%  7.1%  0.7%  direct: 9.2%  skip:47.3%  L0:69.8% L1:29.5% BI: 0.8%
  
  [libx264 @ 0x22afac0] 8x8 transform intra:65.0% inter:92.8%
  
  [libx264 @ 0x22afac0] coded y,uvDC,uvAC intra: 36.3% 31.8% 7.1% inter: 3.6% 6.0% 0.7%
  
  [libx264 @ 0x22afac0] i16 v,h,dc,p: 74% 14%  6%  6%
  
  [libx264 @ 0x22afac0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 24% 32%  5%  2%  3%  2%  1%  3%
  
  [libx264 @ 0x22afac0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 51% 23%  9%  2%  3%  6%  3%  1%  2%
  
  [libx264 @ 0x22afac0] i8c dc,h,v,p: 52% 20% 25%  2%
  
  [libx264 @ 0x22afac0] Weighted P-Frames: Y:6.8% UV:6.1%
  
  [libx264 @ 0x22afac0] ref P L0: 58.1%  6.2% 12.1% 22.6%  0.9%
  
  [libx264 @ 0x22afac0] ref B L0: 83.0% 16.3%  0.7%
  
  [libx264 @ 0x22afac0] ref B L1: 93.5%  6.5%
  
  [libx264 @ 0x22afac0] kb/s:649.85

  Here is the console output for libav built manually (lower quality) :

  avconv version 11.4, Copyright (c) 2000-2014 the Libav developers
  
    built on Jun 17 2015 02:19:28 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
  
  [image2 @ 0x329f140] max_analyze_duration 5000000 reached
  
  Input #0, image2, from 'frame.%04d.jpg':
  
    Duration: 00:00:10.00, start: 0.000000, bitrate: N/A
  
      Stream #0.0: Video: mjpeg, yuvj420p, 1280x720 [PAR 1:1 DAR 16:9], 8 fps, 8 tbn
  
  Output #0, mp4, to 'a2.mp4':
  
    Metadata:
  
      encoder         : Lavf56.1.0
  
      Stream #0.0: Video: mpeg4, yuv420p, 1280x720 [PAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 8 fps, 8 tbn, 8 tbc
  
      Metadata:
  
        encoder         : Lavc56.1.0 mpeg4
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (mjpeg (native) -> mpeg4 (native))
  
  Press ctrl-c to stop encoding
  
  frame=  159 fps=  0 q=31.0 Lsize=     902kB time=19.75 bitrate= 374.2kbits/s    
  
  video:900kB audio:0kB other streams:0kB global headers:0kB muxing overhead: 0.239928%

  In case it helps : the images are named frame.0000.jpg, frame.0001.jpg, etc., so our command is :
  avconv -y -f image2 -r 8 -i frame.%04d.jpg -vf "setpts=2*PTS" videofile.mp4 for both runs shown above. Any help would be hugely appreciated !

• How to convert webp images to MP4 video using ffmpeg

  12 octobre 2016, par Sunny Tambi

  I have tried many possible command line options with ffmpeg, however not getting this to work. I want to convert series of webp images to a mp4 video.
  Some commands that i tried are :

  ffmpeg -i img%04d.webp out.mp4
  
  
  
  ffmpeg -i img%04d.webp -c:v libx264 out.mp4
  
  
  
  ffmpeg -i img%04d.webp -pix_fmt yuv420p out.mp4
  
  
  
  ffmpeg -i img%04d.webp -c:v libx264 -pix_fmt yuv420p -crf 25 out.mp4
  
  
  
  ffmpeg -i img%04d.webp -c:v libx264 -pix_fmt yuv420p -crf 25 -b:v 0 out.mp4

  None of them creates an mp4 video. A mp4 file, though, gets created, however it is of 0 sec. Here is a sample output of one of the execution :

  ffmpeg -i img%04d.webp -c:v libx264 -pix_fmt yuv420p -crf 25 -y out.mp4
  
  
  
  ffmpeg version N-81045-g450cf40 Copyright (c) 2000-2016 the FFmpeg developers
  
    built with gcc 5.4.0 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
  
  libavutil      55. 28.100 / 55. 28.100
  
  libavcodec     57. 50.100 / 57. 50.100
  
  libavformat    57. 42.100 / 57. 42.100
  
  libavdevice    57.  0.102 / 57.  0.102
  
  libavfilter     6. 47.100 /  6. 47.100
  
    libswscale      4.  1.100 /  4.  1.100
  
  libswresample   2.  1.100 /  2.  1.100
  
    libpostproc    54.  0.100 / 54.  0.100
  
  Input #0, image2, from 'img%04d.webp':
  
    Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
  
  Stream #0:0: Video: webp, yuva420p(tv, bt470bg/unknown/unknown), 320x568, 25 tbr, 25 tbn, 25 tbc
  
  [libx264 @ 00000000006dbbc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
  
  [libx264 @ 00000000006dbbc0] profile High, level 2.1
  
  [libx264 @ 00000000006dbbc0] 264 - core 148 r2705 3f5ed56 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - 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=-2 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=25.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  [mp4 @ 00000000006d8700] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
  
  Output #0, mp4, to 'out.mp4':
  
  Metadata:
  
  encoder : Lavf57.42.100
  
  Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 320x568, q=-1--1, 25 fps, 12800 tbn, 25 tbc
  
  Metadata:
  
  encoder : Lavc57.50.100 libx264
  
  Side data:
  
  cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
  Stream mapping:
  
  Stream #0:0 -> #0:0 (webp (native) -> h264 (libx264))
  
  Press [q] to stop, [?] for help
  
  frame= 1 fps=0.0 q=30.0 Lsize= 3kB time=00:00:00.00 bitrate=265435.9kbits/s speed=0.011x video:2kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 44.661823%
  
  [libx264 @ 00000000006dbbc0] frame I:1     Avg QP:23.37  size:  1100
  
  [libx264 @ 00000000006dbbc0] mb I  I16..4: 24.4% 71.5%  4.0%
  
  [libx264 @ 00000000006dbbc0] 8x8 transform intra:71.5%
  
  [libx264 @ 00000000006dbbc0] coded y,uvDC,uvAC intra: 6.1% 5.4% 4.2%
  
  [libx264 @ 00000000006dbbc0] i16 v,h,dc,p: 80% 14%  6%  1%
  
  [libx264 @ 00000000006dbbc0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 46%  5% 48%  0%  0%  0%  0%  0%  0%
  
  [libx264 @ 00000000006dbbc0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 25% 20% 42%  2%  2%  2%  2%  2%  3%
  
  [libx264 @ 00000000006dbbc0] i8c dc,h,v,p: 89%  9%  1%  0%
  
  [libx264 @ 00000000006dbbc0] kb/s:220.00

  Excerpt from the above :

  frame=1 
  
  fps=0.0
  
  time=00:00:00.00
  
  video:2kB

  This should give the idea of what I am trying to say.

  Need help if someone can tell how to convert a series of webp images to MP4 video.