Recherche avancée

Sur d’autres sites (2591)

• How to download .m3u8 parts separately ?

  21 mars 2023, par Jon Freynik

  My google skills are failing me this morning - I can only seem to find how to download the full .m3u8 listings file.

  


  Using the following ffmpeg command works to download and concat all the video files into 1.

  


  ffmpeg -i "http://example.com/chunklist.m3u8" -codec copy file.ts

  


  Is there a similar command to download each chunk separately ? - So the resulting files would be : chunk1.ts, chunk2.ts, etc.

  


• Piping multiple chunked *.ts file streams from m3u8 to one .ts file using Node.js

  7 janvier 2017, par user2631534

  I im creating on-the-fly *.ts files (and updating m3u8 file with last 6 created *.ts files) and would like to stream this file to vlc player using new filename as single file.

  For example...i have on-the-fly 1_.m3u8 file :

    #EXTM3U
  
    #EXT-X-VERSION:3
  
    #EXT-X-TARGETDURATION:14
  
    #EXT-X-MEDIA-SEQUENCE:1
  
    #EXTINF:13.720000,1_1.ts
  
    #EXTINF:4.560000,1_2.ts
  
    #EXTINF:12.760000, 1_3.ts
  
    #EXTINF:9.520000,1_4.ts
  
    #EXTINF:8.560000,1_5.ts
  
    #EXTINF:4.280000,1_6.ts
  
    #EXT-X-ENDLIST

  And would like when i call http://myserverip:port/1.ts in chrome i get to download one file 1.ts that is reading files 1_1.ts and when reading is at end of this file then go to next file 1_2.ts, and 1_3.ts, and 1_4.ts, and 1_5.ts and 1_6.ts and then reading from beginning 1_1.ts, and 1_2ts and so on.

  I need this so that i can stream one h.264 video without interrupting and without stopping when reading next ts file from my server. I use ffmpeg to generate ts chunk small files and overwrite when max 6ts are generated so that i always get from 1_1.ts to 1_6.ts so that my hdd is not full in short time.

  I try using this node js code that run event when m3u8 file is changed and get last ts file name so that i pipe it to response...but problem is when 1_1.ts read file is end it stops stream...

  stream.get('/stream', function(req, res) {
  
  /* STREAM - header */
  
  res.writeHead(200, {
  
    'Content-Type': 'video/H264'
  
  });
  
  var fs = require('fs');
  
  
  
  var Watcher = require('hls-watcher');
  
  var w1 = new Watcher('/tmp/streams/1_.m3u8');
  
  w1.listenFile();
  
  
  
  w1.on("change", function(data){
  
      //do things with ts files stored on data.
  
  
  
      fs.createReadStream('/tmp/streams/'+data[0]).pipe(res);
  
      console.log(data);
  
  });
  
  });

• Using chunks of MP4 file for thumbnails

  11 mai 2024, par Moritz Mahringer

  I want to extract single frames (as thumbs) from videos, without having to download the full video file. I would like to just read the mp4 header (the info should be in the moov atom) and then download the required byte ranges. Afaik thats what browsers (HTML5 video) do when you skip to an unbuffered part

  



  I already looked at : How can HTML5 video’s byte-range requests (pseudo-streaming) work ? but i can't figure out how to use it with ffmpeg for example.

  



  Thanks a lot !