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• avcodec/eatgq : Move transient GetByteContext from context to stack

  20 octobre 2022, par Andreas Rheinhardt

  avcodec/eatgq : Move transient GetByteContext from context to stack
  Reviewed-by : Peter Ross <pross@xvid.org>
  
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
  

  • [DH] libavcodec/eatgq.c

• How do I batch stack one video with a set of another videos in ffmpeg ?

  18 octobre 2022, par Yalla Papi

  I have several mp4 files I am trying to combine into new videos. What I want to do is this without typing out the command a billion times :

  


  ffmpeg -i file1.mp4 -i file2.mp4 -filter_complex vstack combo1.mp4
ffmpeg -i file1.mp4 -i file3.mp4 -filter_complex vstack combo2.mp4
ffmpeg -i file1.mp4 -i file4.mp4 -filter_complex vstack combo3.mp4
ffmpeg -i file1.mp4 -i file5.mp4 -filter_complex vstack combo4.mp


  


  4

  


  How would one go about doing this ?

  


• How to merge 4 transparent videos so they stack together

  26 septembre 2022, par Xiang Chen

  I have 4 transparent videos with the same size, and the duration is just four seconds. They are all in webm format. I want to combine these 4 webm videos.

  


  I used terminal command :

  


  ffmpeg -c:v libvpx-vp9 -i 1.webm -c:v libvpx-vp9 -i 2.webm -filter_complex overlay aa.webm
ffmpeg -c:v libvpx-vp9 -i 3.webm -c:v libvpx-vp9 -i 4.webm -filter_complex overlay bb.webm
ffmpeg -c:v libvpx-vp9 -i aa.webm -c:v libvpx-vp9 -i bb.webm -filter_complex overlay output.webm


  


  Is there a solution here that can be solved in one sentence ? A simpler solution that would stack these four videos for 4 seconds and maintain transparency ?