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• libavcodec/libx264 : fix reference frame computation based on level

  16 avril 2020, par Josh Brewster

  libavcodec/libx264 : fix reference frame computation based on level
  The current implementation allows passing levels to libavcodec as
  
  integers (such as "31" instead of "3.1").
  However, in this case, the maximum reference frame value per level was
  
  ignored because libavcodec converted the string to 310 instead of 31.
  Since libx264 has correctly parsed the level to int
  
  (x4->params.i_level_idc), we should rely on this value instead of
  
  attempting to parse the level string on our own.
  Signed-off-by : Josh Brewster <josh.brewster@protonmail.com>
  
  Signed-off-by : Josh de Kock <josh@itanimul.li>
  

  • [DH] libavcodec/libx264.c

• Concatenating on Windows throws "Invalid data found when processing input" while it works on Mac and Linux

  15 février 2020, par miguelmorin

  I need to run a command with a nightly build of FFMPEG to report a bug on the concat protocol. I found it difficult to compile from source with libx264 support on Linux, and I want to spare my Mac computer, so I use the nightly build on Windows from Zeranoe.

  I call this command to concatenate the files :

  ffmpeg -safe 0 concat -i files_to_combine -vcodec libx264 show.mp4

  where files_to_combine is :

  file ./short_DSC_0013.MOV
  
  file ./short_DSC_0014.MOV
  
  file ./short_DSC_0015.MOV
  
  file ./short_DSC_0016.MOV
  
  file ./short_DSC_0017.MOV
  
  file ./short_DSC_0018.MOV
  
  file ./short_DSC_0019.MOV

  I call this command from the directory containing the video files and files_to_combine.

  On Windows with a nightly build, I get the error :

  files_to_combine : Invalid data found when processing input
  

  I changed file ./DSC_0013.MOV to these options, all with the same error :

  file 'short_DSC_0013.MOV'
  
  file '.\short_DSC_0013.MOV'
  
  file 'F:\short_DSC_0013.MOV'

  How can I debug this error, or what is the syntax for concatenating on Windows with a nightly build ?

  Update with log-level 48

  I ran the same command with -v 48 and got :

  F :\brain squids>C :\Users\migue\Desktop\ffmpeg-20200211-f15007a-win64-static\bin\ffmpeg.exe -v 48 -i files_to_combine -vcodec libx264 show.mp4
  ffmpeg version git-2020-02-11-f15007a Copyright (c) 2000-2020 the FFmpeg developers
    built with gcc 9.2.1 (GCC) 20200122
    configuration : —enable-gpl —enable-version3 —enable-sdl2 —enable-fontconfig —enable-gnutls —enable-iconv —enable-libass —enable-libdav1d —enable-libbluray —enable-libfreetype —enable-libmp3lame —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-libopenjpeg —enable-libopus —enable-libshine —enable-libsnappy —enable-libsoxr —enable-libtheora —enable-libtwolame —enable-libvpx —enable-libwavpack —enable-libwebp —enable-libx264 —enable-libx265 —enable-libxml2 —enable-libzimg —enable-lzma —enable-zlib —enable-gmp —enable-libvidstab —enable-libvorbis —enable-libvo-amrwbenc —enable-libmysofa —enable-libspeex —enable-libxvid —enable-libaom —enable-libmfx —enable-ffnvcodec —enable-cuvid —enable-d3d11va —enable-nvenc —enable-nvdec —enable-dxva2 —enable-avisynth —enable-libopenmpt —enable-amf
    libavutil      56. 39.100 / 56. 39.100
    libavcodec     58. 68.102 / 58. 68.102
    libavformat    58. 38.100 / 58. 38.100
    libavdevice    58.  9.103 / 58.  9.103
    libavfilter     7. 75.100 /  7. 75.100
    libswscale      5.  6.100 /  5.  6.100
    libswresample   3.  6.100 /  3.  6.100
    libpostproc    55.  6.100 / 55.  6.100
  Splitting the commandline.
  Reading option ’-v’ ... matched as option ’v’ (set logging level) with argument ’48’.
  Reading option ’-i’ ... matched as input url with argument ’files_to_combine’.
  Reading option ’-vcodec’ ... matched as option ’vcodec’ (force video codec (’copy’ to copy stream)) with argument ’libx264’.
  Reading option ’show.mp4’ ... matched as output url.
  Finished splitting the commandline.
  Parsing a group of options : global .
  Applying option v (set logging level) with argument 48.
  Successfully parsed a group of options.
  Parsing a group of options : input url files_to_combine.
  Successfully parsed a group of options.
  Opening an input file : files_to_combine.
  [NULL @ 0000021c781784c0] Opening ’files_to_combine’ for reading
  [file @ 0000021c78179580] Setting default whitelist ’file,crypto,data’
  [AVIOContext @ 0000021c781817c0] Statistics : 182 bytes read, 0 seeks
  files_to_combine : Invalid data found when processing input
  

  The contents of files_to_combine is :

  file ’short_DSC_0013.MOV’
  file ’short_DSC_0014.MOV’
  file ’short_DSC_0015.MOV’
  file ’short_DSC_0016.MOV’
  file ’short_DSC_0017.MOV’
  file ’short_DSC_0018.MOV’
  file ’short_DSC_0019.MOV’
  

  Update because of wrong command

  I had mistyped the command. The right command has a -f in front of concat, which I found because the accepted answer was able to make the command work in a similar environment :

  ffmpeg -safe 0 -f concat -i files_to_combine -vcodec libx264 show.mp4

• "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!