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• Revision a2746d7096: examples.mk: quiet vcproj script exec by default the full command line can be s

  4 August 2015, by James Zern

  Changed Paths:
   Modify /examples.mk

  
  
  examples.mk: quiet vcproj script exec by default

  the full command line can be seen with V=1 as with the other gen*
  scripts

  Change-Id: Id045b57e0f9af17d82d79201bbc1241b25a2b821

• execute ffmpeg command in node script

  12 September 2017, by varun_nagar

  I am trying to execute following node script on win64 env, have node version v6.11.0. but it gives me node error: "child process exited with code 3221225781".

  var child_process = require('child_process');
  
  
  
  (function recordVideo() {
  
  
  
  var spawn = child_process.spawn;
  
  
  
  var args = ['-f', 'gdigrab', '-show_region', '1', '-video_size', 'cif', '-offset_x', '100', '-offset_y', '100', '-i', 'desktop', 'out.mp4']
  
  
  
  var ffmpeg = spawn('ffmpeg', args);
  
  
  
  ffmpeg.stdout.on('data', function (data) {
  
      console.log(data);
  
  });
  
  
  
  ffmpeg.stderr.on('data', function (data) {
  
      console.log('grep stderr: ' + data);
  
  });
  
  
  
  ffmpeg.on('close', (code) => {
  
      console.log('child process exited with code ' + code);
  
  }); 
  
  })();

• path issues with FFMPEG Bash script to concat and encode across multiple subfolders

  27 December 2022, by NoobCoder

  I'm trying to write a bash script for Mac OSx Terminal to compress a series of GoPro .MP4 videos from the SDcard directly into a smaller .MP4s on a local network server. The GoPro saves .MP4s in the 100GOPRO folder on the card. After filming, I will through that folder and manually put .MP4s from each game into subfolders within the 100GOPRO folder, named A1, A2, A3, etc.

  


  Folder structure

  


  /GoPro/DCIM/100GOPRO/
               -------/A1/
                       -----GX01xxx1.mp4
                       -----GX01xxx2.mp4
               -------/A2/
                       -----GX01xxx3.mp4
                       -----GX01xxx4.mp4
                       -----GX01xxx5.mp4
                       -----GX01xxx6.mp4


  


  ...etc

  


  I would like then like to run a script from the 100GOPRO folder that will do these steps:

  


  

  1. Within each subfolder, auto-create a file.txt with the names of the subfolder's .MP4s in the format to concat the files (each line has "file 'GX01xxx3.mp4'")

  


  2. Pass that subfolder's file.txt as the input to ffmpeg to reencode and save to a network folder with the name A1.mp4 or A2.mp4

  


  3. Repeat for each subfolder and quit.

  


  


  I'm getting hung up on the dynamic path to the subfolder's file.txt. My code just creates a file.txt in the 100GOPRO folder, and appends all the subfolder contents into that single long combined text file. The output then would create a correct first MP4, but second MP4 contains folder 1 and 2, then 3 contains 1, 2, and 3, etc.

  


  Here's the script I ran:

  


  #!/bin/bash
for f in A*/*.mp4 ; do
echo file \'$f\' >> list.txt ;
done && ffmpeg -f concat -safe 0 -i list.txt /Volume/Server/Videos/A$f.mp4 && rm list.txt


  


  Clearly, failing in how that path for echo to save in the subfolder A*, how to call that subfolder's file.txt as the input for ffmpeg, and how to name the output after the folder.

  


  Thanks for any help you can offer.