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• Bash script to convert imgs in subfolders to video (using ffmpeg and Ubuntu)

  2 novembre 2015, par mcExchange

  I’m trying to convert all files in folders given by

   allFolders.txt
  
  > head folderNames.txt
  
  0001 
  
  0002 
  
  0003 
  
  0004 
  
  0005 
  
  ...

  to a video using ffmpeg

  ffmpeg version 2.2.3 Copyright (c) 2000-2014 the FFmpeg developers  built on Apr 20 2015 13:38:52 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
  
  configuration: --prefix=/home/myUsername/usr/local --enable-nonfree --enable-gpl --enable-pic --enable-shared --enable-libx264 --disable-vaapi

  According to some answers here on stackoverflow I wrote the following bash script :

  #!/bin/bash
  
  while read p; do
  
      cd "$p"
  
      ffmpeg -f concat -i "allImgNames.txt" -framerate 30 -c:v libx264 -profile:v high -crf 20 -pix_fmt yuv420p output.mp4
  
      cd -
  
  done < folderNames.txt

  where allImgNames.txt is a text file containing all the image names.

  The strange thing is that it works for a few videos but for the rest of the filelist it fails saying allImgNames.txt: No such file or directory, which is not true. I checked all paths several times. Also I can execute the ffmpeg ... command above manually without problems.
  I don’t know what I’m doing wrong. All file / folder names are normal (no special characters). Maybe I don’t understand enough about bash or ffmpeg.

• How to create bash script with ffmpeg to stitch together AVI files, then rotate 180 degrees ?

  25 septembre 2022, par Maude Rozencrance's Cat

  I'm trying to make a bash script in linux to stitch a bunch of AVI files together then rotate the vid 180 degrees. My code works, but without the rotation part.

  


  >videos.txt

files=DSCF*.AVI

for f in $files
do
    #make list of vids, copy to videos.txt
    echo "file '$f'" >> videos.txt;
    echo "duration 10.0" >> videos.txt;
    
done

#stitch all vids together
ffmpeg -f concat -safe 0 -i videos.txt -c copy bigvid.AVI


  


• Use ffmpeg Windows batch script on OS X

  3 novembre 2015, par andisk

  I got an ffmpeg batch script written by someone. The script takes all video clips of a specific folder, cuts off first and last frame, converts the clips to ProRes and saves them in a new folder. I got it running under Windows (just have to double-click the *.bat file and it does what it’s supposed to do).
  But now I need that same script running on a mac. I’ve installed ffmpeg over homebrew. Then I tried to make a Automator-Service, but with no success. Best thing would be if I could just right click on the folder with the videos, go to services and click on convert. I’m not really into coding and scripting, but the people who should use the script are happy when they find the power switch of the computer..
  Can anyone help me with this ?
  Cheers andisk

  Edit : Here’s the code

      `@echo off
  
  
  
  
  
      mkdir tmp
  
      mkdir converted
  
  
  
  
  
      set pathtofind=%~dp0
  
      echo Searching for files in %pathtofind%%1\
  
  
  
  
  
      setlocal enableextensions
  
      setlocal ENABLEDELAYEDEXPANSION
  
  
  
  
  
  
  
      for %%f in (%pathtofind%%1\*) do (
  
              echo Handling file %%f
  
              ffmpeg -y -loglevel quiet -i %%f tmp\%%d.png
  
              set count=0
  
              for %%x in (tmp\*) do set /a count +=1
  
              echo Deleting frames 1 and !count!
  
              del tmp\1.png
  
              del tmp\!count!.png
  
              echo Saving %%~nf.mov
  
              ffmpeg -y -loglevel verbose -f image2 -r 24 -i tmp\%%d.png -vcodec prores -profile:v 1 -r 24 converted\%%~nf.mov
  
              del /q tmp\*.*
  
  
  
              echo ---------------------------
  
      )
  
  
  
  
  
      rd tmp`