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• FFmpeg batch convert multiple files

  11 mars 2019, par John

  This command works great :

  ffmpeg \
  
  -i /mnt/share/Movies2/"nameofmovie.mkv" \
  
  -map 0:0 \
  
  -map 0:1 \
  
  -map 0:2 \
  
  -c:v libx264 \
  
  -preset veryfast \
  
  -tune film \
  
  -crf 18 \
  
  -c:a:0 copy \
  
  -c:a:1 copy \
  
  /mnt/share/Converted/"nameofmovie".mkv

  But i want to either be able to read the input file from a text file or to run this command one after another for each file i want to convert. Is there a script i can set up to do this ? Not all the files are in the same folder or the same format so something where i could just change the file name and format would be great. I used to have a bash script that could do this for an entire folder but that’s not what i am trying to do here. I am using Ubuntu server 18.04
  Also i’m pretty new to this i’ve found this for a whole folder :

  for i in *.avi;
  
  do name=`echo $i | cut -d'.' -f1`;
  
  echo $name;
  
  ffmpeg -i "$i" "${name}.mov";
  
  done

  But i dont know how to adapt this for individual files

• avcodec/aacdec_common : Combine huffman tabs

  24 septembre 2023, par Andreas Rheinhardt

  avcodec/aacdec_common : Combine huffman tabs
  This allows to avoid the relocations inherent in a table
  
  to individual tables ; it also reduces padding.
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
  

  • [DH] libavcodec/aacdec_common.c

• Encode piped images as they arrive

  1er août 2024, par Aviad P.

  I'm encoding a video by piping images into ffmpeg using the -i pipe: input.
However the images arrive sporadically, but are encoded as if they are sequential frames.

  


  I have tried using -use_wallclock_as_timestamps 1 in the input block, but it has no effect.

  


  This is the command I'm using :

  


  ffmpeg -use_wallclock_as_timestamps 1 -i pipe: -vf fps=50 -c:v libx264 -map 0 -f segment -segment_list playlist.m3u8 -segment_list_flags +live -segment_time 10 -segment_wrap 5 seg%03d.mkv

  


  Input block parameters I've tried to no avail :

  


  

  • -re

  


  • -framerate 1

  


  • -framerate 1/1000

  


  • -framerate 50

  


  


  So to reiterate the problem : A video is being produced, but each piped image is set as an individual frame, despite having arrived and encoded at an entirely different time that its predecessor.