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• Merge commit ’c9527bf3444c5332fa04931d32997308784fc862’

  23 mars 2017, par Clément Bœsch

  Merge commit ’c9527bf3444c5332fa04931d32997308784fc862’
  * commit ’c9527bf3444c5332fa04931d32997308784fc862’ :
  
    Make the RELEASE file match with the most recent tag
  This commit is noop.
  Merged-by : Clément Bœsch <u@pkh.me>
  

• ffmpeg for loop into bash script

  18 mars 2015, par gaz

  I use a for loop on the mac command line to convert a bunch of avi’s to mp4’s
  I would like to put this into a bash script so I can just run the script on any given directory.

  e.g shelf script name [directory

  and let it do its thing.

  Do I just open a text editor and add

  #!/bin/bash

  then my for loop and ffmpeg arguments
  then end it all with
  fi ?

  Then make it executable ? Is is that simple.

  @Robert Rowntree

  Many thanks for the link. This looks like it could be very useful to me. I am not familiar with the concatenate so I would have never found that information.

  It appears that I can give ffmpeg a bunch of files at the command line or to read from a text file and ffmpeg will output them all into a single format, In my case MP4’s. Well at least this is what I think it does.

  The "The inputs have to be of the same frame size, and a handful of other attributes have to match" worries me a bit, do i need to check the frame rate of every movie to ensure they all match ?

  My ultimate goal would be to run a script on say, 30 mixed video files, avi, wmv, mkv, mpg etc and output the lot to mp4, but I think this is way too complicated for me.

  I normally just repack mkv’s to mp4 and the quality and size are good and I’m pleased with the results and speed. However, I tried just repacking a the aforementioned avi’s and the quality was poor and pixelated. I searched around and finally found this example ;

  ffmpeg -i input.avi -c:v libx264 -crf 19 -preset slow -c:a aac -strict experimental -b:a 192k -ac 2 out.mp4 (can this be improved ? Sped up ?)

  Which produces great quality mp4 files from the avi’s I have got but does take a long time. Hence why I originally asked for help creating a script. Which I intended running on the folder of avi’s.

  Be great to be able just to run a script on every non mp4 files and have great results every time :) But with different codecs and frame rates etc etc I suppose this will never be possible.

  Any further help or input will be greatly received.

  Thanks again.

• Revision 37293 : Retour en arrière (suppression de la noisette)

  15 avril 2010, par joseph@… — Log

  Retour en arrière (suppression de la noisette)