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• ffmpeg - how can I make a video out of video given a list of frames ?

  28 avril 2020, par Adam Gosztolai

  I have a list of frames frames = [23, 25, 26, 27, 28, 345, 346, 347] and a video file input.mp4 recorded at 100 fps.

  



  Could someone show me how to make a video output.mp4 taking only frames from frames ?

  


• h264dec : use a large enough field for reference list modification values

  17 août 2017, par Anton Khirnov

  h264dec : use a large enough field for reference list modification values
  pic_num can be at most 17-bit, so uint8_t is not sufficient.
  Found-By : Bradley Sepos <bradley@bradleysepos.com>
  
  CC : libav-stable@libav.org
  

  • [DBH] libavcodec/h264dec.h

• ffmpeg video of image list within a folder

  31 mars 2020, par Gergely Szarka

  I am trying to create an animation from a png files. They are all in the same folder and are named

  



  step0.png
step1.png
step2.png
.....

step19998.png
step19999.png


  



  I frame represents 0.01s, so I think I need 100 fps.

  



  the command I was trying :

  



  ffmpeg -r 100 -f image2 -pattern_type glob -i '*.png' -vcodec libx264 -crf 1  -pix_fmt yuv420p test.mp4


  



  For some reason it doesnt put them together in the correct order, but when i put the last 500 into another folder and ran the command there it worked perfectly.