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• How can I merge intro.mp4, image.png, music.mp3 in one command ?

  10 décembre 2020, par Dtomper

  Hi I want to make a simple music video where an intro plays then an image shows up while the song is playing in the background.

  


  I have this command that mixes the song and the image, all I need now is the intro playing at the beginning :

  


  ffmpeg -r 1 -loop 1 -y -i image.png -i music.mp3 -c:a copy -r 1 -vcodec libx264 -shortest mix.mp4


  


• Including ffmpeg library in AWS Lambda

  30 décembre 2016, par Alex Konetchy

  I’m trying to include the ffmpeg library with AWS.

  drwxrwxrwx 2 root root        0 Dec 22 13:04 bin
  
      -rwxrwxrwx 1 root root 40166912 Dec 22 11:50 ffmpeg.exe
  
      -rwxrwxrwx 1 root root       30 Dec 22 13:04 version.sh
  
  
  
  drwxrwxrwx 2 root root        0 Dec 22 16:35 node_modules
  
  -rwxrwxrwx 1 root root      594 Dec 22 13:03 package.json
  
  -rwxrwxrwx 1 root root      818 Dec 30 11:04 SplitFrames.js

  Below is what’s in the main js file, SplitFrames.js

  var execute = require('lambduh-execute');
  
  var validate = require('lambduh-validate');
  
  
  
  process.env['PATH'] = process.env['PATH'] + ':/tmp/:' + process.env['LAMBDA_TASK_ROOT']
  
  
  
  exports.handler = function(event, context, callback) {
  
      var exec = require('child_process').exec;
  
      var cmd = 'ffmpeg -version';
  
  
  
      exec(cmd, function(error, stdout, stderr) {
  
          console.log(stdout);
  
          callback(null, stdout);
  
      }); 
  
  }

  I test the function in lambda and it outputs nothing. Wondering how to include the ffmpeg library with AWS and node js. Any help is greatly appreciated.

• How to make FFmpeg download only the required segments [closed]

  25 juillet, par daniil_

  I'm developing a tool, that create timelapse. For this purpose I use ffmpeg 7.1.1 verion.
I have a playlist file called index.m3u8 (inside it there are URLs to TS segments—typically around 5,000 of them). Here’s a small excerpt :

  


  #EXTM3U
#EXT-X-TARGETDURATION:12
#EXT-X-VERSION:6
#EXT-X-MEDIA-SEQUENCE:0
#EXT-X-PLAYLIST-TYPE:EVENT
#EXT-X-START:TIME-OFFSET=8,PRECISE=YES
#EXT-X-PROGRAM-DATE-TIME:2025-07-22T07:59:51.173Z
#EXTINF:10.080,
https://my-storage.io/receiver/archives/3a1b162d-392d-d45a-089a-dc93fb842a35/files/2025-07-22/07/59/1753171191173_aa_00000_00000_10080.ts?exp=1753543086&signature=MEYCIQCx_hDnFVwk7WJyQG5QujV5ZGhLoBqkD5uoQFebha1knQIhAMJm1KA5DLEuqD4_5zS5QlzTGIuj5q9TCUcML7MEPMl7
#EXT-X-PROGRAM-DATE-TIME:2025-07-22T08:00:01.253Z
#EXTINF:10.080,
https://my-storage.io/receiver/archives/3a1b162d-392d-d45a-089a-dc93fb842a35/files/2025-07-22/08/00/1753171201253_aa_00000_00000_10080.ts?exp=1753543086&signature=MEYCIQCx_hDnFVwk7WJyQG5QujV5ZGhLoBqkD5uoQFebha1knQIhAMJm1KA5DLEuqD4_5zS5QlzTGIuj5q9TCUcML7MEPMl7
#EXT-X-PROGRAM-DATE-TIME:2025-07-22T08:00:11.333Z
#EXTINF:10.021,
https://my-storage.io/receiver/archives/3a1b162d-392d-d45a-089a-dc93fb842a35/files/2025-07-22/08/00/1753171211333_aa_00000_00000_10021.ts?exp=1753543086&signature=MEYCIQCx_hDnFVwk7WJyQG5QujV5ZGhLoBqkD5uoQFebha1knQIhAMJm1KA5DLEuqD4_5zS5QlzTGIuj5q9TCUcML7MEPMl7
#EXT-X-PROGRAM-DATE-TIME:2025-07-22T08:00:21.354Z
#EXTINF:10.079,
https://my-storage.io/receiver/archives/3a1b162d-392d-d45a-089a-dc93fb842a35/files/2025-07-22/08/00/1753171221354_aa_00000_00000_10079.ts?exp=1753543086&signature=MEYCIQCx_hDnFVwk7WJyQG5QujV5ZGhLoBqkD5uoQFebha1knQIhAMJm1KA5DLEuqD4_5zS5QlzTGIuj5q9TCUcML7MEPMl7
#EXT-X-PROGRAM-DATE-TIME:2025-07-22T08:00:31.433Z
...


  


  I’m trying to extract still images from the stream at specific moments.

  


  When I run a command like :

  


  ffmpeg \
  -analyzeduration 5000000 \
  -probesize 5000000 \
  -err_detect ignore_err \
  -protocol_whitelist file,http,https,tcp,tls \
  -allowed_extensions ALL \
  -f hls \
  -y \
  -ss 11316.719 \
  -i /Users/daniil/Desktop/test/exports/.../index.m3u8 \
  -frames:v 1 \
  -q:v 2 \
  /Users/daniil/Desktop/test/exports/.../frames/frame_00100.png


  


  ffmpeg downloads segments 1 and 2 (presumably to probe the format), and then it downloads two more TS files around the target timestamp.

  


  But as soon as I push the -ss value beyond a certain point—in my case -ss 8487.54—it starts downloading every TS segment from the very start of the playlist up to the one I need. That can easily be 1,000 TS files or more. In other words, when -ss is between 0 and 8374.372, everything works fine, but beyond that it exhibits this strange behavior.