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• GUI/homepage for video files and FFMPEG [on hold]

  6 mars 2017, par user3017725

  I’m currently figurering out what language I should program in.
  I want to build a GUI/homepage where you can uploade video files and then use FFMPEG to either convert them into another format and codec, or uploade multiple files and convert them into one and then either download the converted one or find the video files in a folder on the server. What do you recommend ?
  The dream scenario would be to upload a file or a folder with video files and then select the files in a order and then press convert or what ever and then it executes the command and it shows either the command FFMEG output or a percentage of the process.

  At first this will probably only be used locally, so on a laptop or a server on the local network.

  Best regards Phillip

• 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 ?

  


• FFmpeg - Writing a script to define fontcolor of each word in a text file ?

  1er mars 2019, par distro.obs

  I have a text file with a lot of word separated by newline character like this

  apple
  
  banana
  
  strawberry

  And I have a list of colors I want those word to appear in

  0xFF0000
  
  0xFFFF33
  
  0xFF0045

  Also I’m using command like this

  x=:'lte(t,10.99)*0+between(t,11,42.99)*10+between(t,43,643.99)*20+gte(t,644)*30':y='lte(t,10.99)*0+between(t,11,42.99)*10+between(t,43,643.99)*20+gte(t,644)*30'

  to move those words around.

  Is it possible to somehow script ffmpeg to color those words and also move them all in one command ?