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• FFmpeg : Encode x264 with AMD GPU on Windows ?

  20 septembre 2023, par ZeroTek

  I am currently trying to record a Video on my Lenovo Laptop with its Built-In Webcam using FFmpeg on Windows 10. One of my goals is to keep the CPU Usage as low as possible, that's why i want to push the h264 encoding to the GPU. 
Now it gets a bit tricky here with my Laptop. Because it uses two GPUs. The first GPU is a Intel HD 5500 Graphics Unit as Part of the CPU. This one is most likly used for non-demanding Applications like office etc. to save Energy. The other one is a AMD R5 M330 that will be used for graphic intense applications like gaming.

  



  Currently, i am using the following command to encode the Webcam Stream on the Intel HD GPU :

  



  ffmpeg -f dshow -vcodec mjpeg -video_size 1280x720 -framerate 30 video="Lenovo EasyCamera":audio="Mikrofon (Realtek High Definition Audio)" -c:v h264_qsv -g 60 -q 28 -look_ahead 0 -preset:v faster -c:a aac -q:a 0.6 -r 30 output.mp4


  



  This does work so far but it seems this GPU does not have enough Power to keep up with the framerate on higher bitrates or with a high amount of i-frames. The Video starts lacking and skipping frames. If i am using CPU encoding everything works smooth.

  



  Now that my Laptop got that second AMD GPU with a lot more Power it would be a nice Try to encode on that one, but i can't find any information about how to encode on AMD Hardware on Windows 10. So my question is : How does the ffmpeg command look like to use AMD Hardware for h264 encoding ?

  


• can't install ffmpeg in ubuntu

  5 février 2013, par john

  I tried to install ffmpeg in ubundu.using the command sudo apt-get install ffmpeg

  But i can't install it.It Shows an error.Following is the out put when i tried to install ffmpeg.

  wds@wds:~$ sudo apt-get install ffmpeg
  
  [sudo] password for wds: 
  
  Reading package lists... Done
  
  Building dependency tree       
  
  Reading state information... Done
  
  The following extra packages will be installed:
  
    libavfilter1
  
  The following NEW packages will be installed:
  
    ffmpeg libavfilter1
  
  0 upgraded, 2 newly installed, 0 to remove and 3 not upgraded.
  
  Need to get 357kB of archives.
  
  After this operation, 1,282kB of additional disk space will be used.
  
  Do you want to continue [Y/n]? y
  
  WARNING: The following packages cannot be authenticated!
  
    libavfilter1 ffmpeg
  
  Install these packages without verification [y/N]? y
  
  Err http://us.archive.ubuntu.com/ubuntu/ maverick-updates/main libavfilter1 i386 4:0.6-2ubuntu6.3
  
    404  Not Found [IP: 91.189.91.15 80]
  
  Err http://security.ubuntu.com/ubuntu/ maverick-security/main libavfilter1 i386 4:0.6-2ubuntu6.3
  
    404  Not Found [IP: 91.189.92.200 80]
  
  Err http://security.ubuntu.com/ubuntu/ maverick-security/main ffmpeg i386 4:0.6-2ubuntu6.3
  
    404  Not Found [IP: 91.189.92.200 80]
  
  Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/f/ffmpeg/libavfilter1_0.6-2ubuntu6.3_i386.deb  404  Not Found [IP: 91.189.92.200 80]
  
  Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/f/ffmpeg/ffmpeg_0.6-2ubuntu6.3_i386.deb  404  Not Found [IP: 91.189.92.200 80]
  
  E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
  
  wds@wds:~$ 

  It shows a 404 error.when installing.

• Revision 67228 : On surcharge un define de la librairie afin de permettre la création ...

  28 octobre 2012, par eric@… — Log

  On surcharge un define de la librairie afin de permettre la création des fichiers temporaires dans le répertoires des archives dont on sait qu’il est toujours accessible en écriture (spipfactory pour la remontée du problème en mutu)