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• avcodec/aacpsy : Avoid floating point division by 0 of norm_fac

  28 mai 2021, par Michael Niedermayer

  avcodec/aacpsy : Avoid floating point division by 0 of norm_fac
  Fixes : Ticket7995
  
  Fixes : CVE-2020-20446
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavcodec/aacpsy.c

• FFMPEG Add thumbnail to video [duplicate]

  18 mai 2020, par james-norman

  add a thumbnail to my video file. I have the code that I have compiled with the help of other people from StackOverflow and I have one bit left to finish it off and that is to add a line of code to add video thumbnail.
  

  



  you will see some weird text in command like targggget these are words that get replaced by the software so ignore it.

  
app.path\ffmpeg gets replaced with file-path/ffmpeg
  
targgggett\targ3et.mp4 file-path/xx.mp4
  
targgggett\targetimgee - output is example C :\Users\username\Desktop\vidz\New folder\images\demo.png

  



  "app.path\ffmpeg" -y -i "targgggett\targ3et.mp4" -loop 1 -framerate 30000/1001 -t 5 -i "targgggett\targetimgee" -t 0.5 -f lavfi -i anullsrc=channel_layout=stereo:sample_rate=44100 -filter_complex "[0:a]atempo=1.0,pan=stereo|c0code>

  



  i want to add a video thumbnail using targgggett\targetimgee and set video thumbnail only
  

  



  "app.path\ffmpeg" -y -i "targgggett\targ3et.mp4" -loop 1 -framerate 30000/1001 -t 5 -i "targgggett\targetimgee" -t 0.5 -f lavfi -i anullsrc=channel_layout=stereo:sample_rate=44100 -filter_complex "[0:a]atempo=1.0,pan=stereo|c0code>

  



  i get error

  



  ffmpeg version git-2020-04-13-59e3a9
a Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 9.3.1 (GCC) 20200328
  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-libsrt --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-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-li
bspeex --enable-libxvid --enable-libaom --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  libavutil 
     56. 42.102 / 56. 42.102
  libavcodec     58. 78.102 / 58. 78.102
  libavformat    58. 42.100 / 58. 42.100
  libavdevice    58.  9.103 / 58.  9.103
  libavfilter     7. 77.101 /  7. 77.101
  libswscale      5.  6.101 /  5.  6.101
  libswresample 
  3.  6.100 /  3.  6.100
  libpostproc    55.  6.100 / 55.  6.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\Users\user\Desktop\vidz\New folder\55.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: isommp42

    creation_time   : 2020-03-26T08:17:13.000000Z
  Duration: 00:04:29.12, start: 0.000000, bitrate: 1402 kb/s
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 1270 kb/s, 29.97 fps, 29.97 tbr,
 30k tbn, 59.94 tbc (default)
    Metadata:
      creation_time   : 2020-03-26T08:17:13.000000Z
      handler_name    : ISO Media file produced by Google Inc. Created on: 03/26/2020.
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, 
stereo, fltp, 127 kb/s (default)
    Metadata:
      creation_time   : 2020-03-26T08:17:13.000000Z
      handler_name    : ISO Media file produced by Google Inc. Created on: 03/26/2020.
Input #1, image2, from 'C:\Users\user\Desktop\vidz\New folder\\ima
ges\20191002_132728.jpg':
  Duration: 00:00:00.03, start: 0.000000, bitrate: 1223868 kb/s
    Stream #1:0: Video: mjpeg (Baseline), yuvj420p(pc, bt470bg/unknown/unknown), 4032x3024, 29.97 tbr, 29.97 tbn, 29.97 tbc
Input #2, lavfi, from 'anullsrc=channel
_layout=stereo:sample_rate=44100':
  Duration: N/A, start: 0.000000, bitrate: 705 kb/s
    Stream #2:0: Audio: pcm_u8, 44100 Hz, stereo, u8, 705 kb/s
Option b:v (video bitrate (please use -b:v)) cannot be applied to input url C:\Users\user\Desktop\vidz\
New folder\\images\20191002_132728.jpg -- you are trying to apply an input option to an output file or vice versa. Move this option before the file it belongs to.
Error parsing options for input file C:\Users\user\Desktop\vidz\New folder\\images\20191002_
132728.jpg.
Error opening input files: Invalid argument


  


• error after upgrading to ffmpeg n4.3.1 version

  19 avril 2021, par al pacino

  I upgraded to ffmpeg n4.3.1 version using tar file. and then used ./configure and then used make and sudo install make to install files.

  


  but after the installation, I am getting the following error -

  


          ffmpeg -i 'https://player.vimeo.com/external/202414841.sd.mp4?s=4f9ef25c7c52a64a5788afb5181a51d0f31f2f43&profile_id=164' -vf scale=480:360 -c:v libvpx-vp9 -crf 30 -b:v 0 -b:a 128k -c:a libopus sample_created_video.webm
    ffmpeg version 8b3f71b4 Copyright (c) 2000-2020 the FFmpeg developers
      built with gcc 9 (Ubuntu 9.3.0-17ubuntu1~20.04)
      configuration: 
      libavutil      56. 51.100 / 56. 51.100
      libavcodec     58. 91.100 / 58. 91.100
      libavformat    58. 45.100 / 58. 45.100
      libavdevice    58. 10.100 / 58. 10.100
      libavfilter     7. 85.100 /  7. 85.100
      libswscale      5.  7.100 /  5.  7.100
      libswresample   3.  7.100 /  3.  7.100
    Unrecognized option 'crf'.
    Error splitting the argument list: Option not found


  


  I also tried to use sudo snap install fmmpeg but I was getting error-

  


      [Errno 2] No such file or directory: 
    and also permission denied for sample_created_video.webm


  


  I don't know what is causing the problem. Is there any way to fix this issue or to upgrade to 4.3.1 using a different method ?