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• create a video clip from m3u8 file using node js

  12 janvier 2021, par Alan

  
const ffmpegPath = require('@ffmpeg-installer/ffmpeg').path;
const ffmpeg = require('fluent-ffmpeg');
const process = require('process');


const args = process.argv.slice(2);
if (args.length !== 4) {
    console.error('Incorrect number of arguments');
    process.exit(1);
  }
const startTime = args[0];
const timeDuration = args[1];
const inputFile = args[2];
const outputFile=args[3];

ffmpeg.setFfmpegPath(ffmpegPath);

ffmpeg(inputFile)
  .setStartTime(startTime)
  .setDuration(timeDuration)
  .output(outputFile)
  .on('end', function(err) {
    if(!err) { console.log('conversion Done') }
  })
  .on('error', function(err){
    console.log('error: ', err)
  }).run();



  


  


  Here is my index.js file which can create clips from any video file (mkv,mp4,ts,etc.).
I run

  


  node index.js 0:15 20 ../../video/sample.mp4 ../../video/output.mp4

  


  This command creates a new file in a specific folder of my choice. I am running slice method to remove first two arguments and extract the last 4 args to create a clip.

  


  But I don't know how to create a clip from a m3u8 file such as

  


  


  #EXTM3U
#EXT-X-VERSION:3
#EXT-X-TARGETDURATION:13
#EXT-X-MEDIA-SEQUENCE:0
#EXTINF:12.960000,
test0.ts
#EXTINF:8.760000,
test1.ts
#EXTINF:10.520000,
test2.ts
#EXTINF:9.800000,
test3.ts
#EXTINF:10.000000,
test4.ts
#EXTINF:10.240000,
test5.ts
#EXT-X-ENDLIST



  


  


  let's say I wanna create a 20 seconds file that starts the 15th second so it will start from test1.ts at 3s and then will move to the next file test2.ts and then it will take only the first 5 seconds of test3.ts to create a total 20s file and give output.

  


  I'm pretty much stuck in this. Is there a way to do that like I'm doing using arguments ???

  


  


• how to create a small m3u8 clip from another m3u8 clip using node

  12 janvier 2021, par Alan

  #EXTM3U
#EXT-X-VERSION:3
#EXT-X-TARGETDURATION:13
#EXT-X-MEDIA-SEQUENCE:0
#EXTINF:12.960000,
https://d3s84sk2607r1u.cloudfront.net/video_866552260.ts
#EXTINF:8.760000,
https://d3s84sk2607r1u.cloudfront.net/video_866552261.ts
#EXTINF:10.520000,
https://d3s84sk2607r1u.cloudfront.net/video_866552262.ts
#EXTINF:9.800000,
https://d3s84sk2607r1u.cloudfront.net/video_866552263.ts
#EXTINF:10.000000,
https://d3s84sk2607r1u.cloudfront.net/video_866552264.ts
#EXTINF:10.240000,
https://d3s84sk2607r1u.cloudfront.net/video_866552265.ts
#EXT-X-ENDLIST



  


  So here it is an m3u8 file. I am trying to cut it and create a new clip let's say 15 seconds with the first two ts files and remove the others. This new clip will be in m3u8 format and will look like

  


  


  


  #EXTM3U
#EXT-X-VERSION:3
#EXT-X-TARGETDURATION:13
#EXT-X-MEDIA-SEQUENCE:0
#EXTINF:12.960000,
https://d3s84sk2607r1u.cloudfront.net/video_866552260.ts
#EXTINF:2.040000,
https://d3s84sk2607r1u.cloudfront.net/video_866552261.ts
#EXT-X-ENDLIST



  


  I am using node js and FFmpeg. So is there a way to create a small clip which will be a m3u8 file, from this m3u8 file. I am trying to create a script that will execute. So if it's not node js then any other like java or python will be helpful for me

  


  


  I am trying to create a script.js that will run on my command like

  


  node script.js start_time end_time ./path/file.m3u8

  


  


  that will generate a new m3u8 file

  


• full m3u8 clip isn't getting generated from m3u8 file

  12 janvier 2021, par Alan

  
const ffmpegPath = require('@ffmpeg-installer/ffmpeg').path;
const ffmpeg = require('fluent-ffmpeg');
const process = require('process');


const args = process.argv.slice(2);
if (args.length !== 4) {
    console.error('Incorrect number of arguments');
    process.exit(1);
  }
const startTime = args[0];
const timeDuration = args[1];
const inputFile = args[2];
const outputFile=args[3];

ffmpeg.setFfmpegPath(ffmpegPath);

ffmpeg(inputFile)
  .setStartTime(startTime)
  .setDuration(timeDuration)
  .output(outputFile)
  .on('end', function(err) {
    if(!err) { console.log('conversion Done') }
  })
  .on('error', function(err){
    console.log('error: ', err)
  }).run();




  


  


  here is my index.js file
I am running this command on the terminal to generate a clip from the m3u8 file
node index.js 00:00:10 46 ./path/sample.m3u8  ./path/output.m3u8 
The main problem is that it is not creating a clip for more than 13 seconds. For example, the above command should generate a 46s clip but it is going near 13 seconds. So I don't get what's wrong with that. Any clip less than 13 is perfectly fine.
Is there any way to fix that ?