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• Download youtube video duration using youtube-dl PHP and ffmpeg

  21 juin 2017, par user3285828

  Is there any more efficient way to download youtube videos at a specific start and end time using youtube-dl and ffmpeg in PHP.

  I currently have this, which does work, it first downloads the whole video to an mp3 file, and then crops that file to the range I set using ffmpeg, but when I only want 30 seconds or so of a 20 minute video, waiting for the full video to download doesn’t seem the best way to do it.

  <?php
  
  require __DIR__ . '/vendor/autoload.php';
  
  
  
  use YoutubeDl\YoutubeDl;
  
  
  
  $dl = new YoutubeDl([
  
      'extract-audio' => true,
  
      'audio-format' => 'mp3',
  
      'audio-quality' => 0, // best
  
      'output' => 'videoname.%(ext)s',
  
  ]);
  
  $dl->setDownloadPath('C:\youtubevideos');
  
  $video = $dl->download('https://www.youtube.com/watch?v=oDAw7vW7H0c');
  
  
  
  $start = 60; // Start 60 seconds in to the video
  
  $duration = 30; // Get 30 seconds after $start
  
  $fullVideo = "C:\youtubevideos\videoname.mp3";
  
  $shortVideo = "C:\youtubevideos\short\shortversion.mp3"; // create 30 seconds
  
  exec("ffmpeg -ss $start -i $fullVideo -t $duration -c copy $shortVideo");
  
  exec("DEL $fullVideo");

  I am using youtube dl PHP https://github.com/norkunas/youtube-dl-php

• How to download m3u8 playlist with URL redirection ? (blob URL,HydraX, JW Player version 8.4.2)

  17 novembre 2019, par wltprgm

  The video in https://hydrax.net/ is using HLS, .m3u8 file, direct link is https://hydrax.net/demo/hydrax.html (from the iframe src).

  However, youtube-dl couldn’t read from the .m3u8 file I downloaded from blob in chrome.

  And using ffmpeg method (which usually works) to download from the .m3u8 file failed because the first segment of the file is a URL redirect

  Error when loading first segment 'https://i.donald-gaines.xyz/redirect/7qC173pnWiDwe2TumUTYnzX4WdbPn8XJDzhqDzXPo39PWtX4EaAxLq7FLUW17aI/WhsiWh1RO6oSXzr6QqkTOgljgRrXBgpJtQf6gMBAC5Jq95JkuQlWKpfpgPoo/BSGGloj6MOe7cO4K9HoDj76PRzjSVoiwcJ1Xl34kc3Z5/Bl2WS3KO8WsicRVG8l1EBoi3RN2DnqZx6o13U56YnDBv'
  
  2b0bdf87-656f-4880-8357-f7fd6329b2f8.m3u8: Invalid data found when processing input

  Somebody asked the same question in reddit some days ago : link

• FFmpeg does not download hls stream

  26 juillet 2020, par mrlucasrib

  I am trying to download a video from an m3u8 file. I used the chrome dev tools network analyzer and copied the address from the m3u8 file.

  


  #EXTM3U
#EXT-X-VERSION:3
#EXT-X-TARGETDURATION:6
#EXT-X-MEDIA-SEQUENCE:0
#EXT-X-PLAYLIST-TYPE:VOD
#EXT-X-KEY:METHOD=AES-128,URI="key://pi1CcgormCfrBeHFonx1SjYyNREActOy9x5fdSmTcQ74q9gDltGOMVTb2KT7jebRYJNU9skhE1wPp3VBgsIQhutzL9nlU7CwifAHVRX63E8abzo+8daPodXlUvN8qlXDKE8I2w37kc+UqyTG86U3Kg==",IV=0x157c77a2bc4ce357dfb893e2c01f8561
#EXTINF:6.0000,
https://contentplayer.website.com/video/4vqnGjj0L3/hls/360/segment-0.ts
....
#EXTINF:1.0667,
https://contentplayer.website.com/video/4vqnGjj0L3/hls/360/segment-219.ts
#EXT-X-ENDLIST 


  


  So I put in ffmpeg and got a 403 forbidden error

  


  [https @ 0x55c2fae84d80] HTTP error 403 Forbidden
[crypto @ 0x55c2fb11ebc0] Unable to open resource: https://contentplayer.website.com/video/4vqnGjj0L3/hls/540/segment-1.ts
[hls @ 0x55c2fae807c0] Failed to open segment 1 of playlist 0
...


  


  I thought it could be because of some missing http header, so I copied the cURL command from devtools. (I copied from the request of a segment, in which I had the cloudfront authorization key)

  


  I took all the headers from cURL and added them to ffmpeg.

  


  ffmpeg -allowed_extensions ALL -headers 'User-Agent: ...'
-headers 'Accept: */*' 
-headers 'Accept-Language: ...' 
-headers 'Referer: https://player....com/' 
-headers 'Origin: https://player....com' 
-headers 'Connection: keep-alive'
-headers 'Cookie: CloudFront-Policy=..; CloudFront-Signature=...; CloudFront-Key-Pair-Id=..; hotid=..; hmVlcIntegration=..' -headers 'Pragma: no-cache' -headers 'Cache-Control: no-cache' -headers 'TE: Trailers' 
-protocol_whitelist file,crypto,https,tcp,tls -i esse.m3u8  -map 0 -c copy output.mkv  -i link.m3u8  -map 0 -c copy output.mkv


  


  However, I still receive the 403 forbidden error. When I execute the cURL command it downloads the contents of the fragment. My hypothesis was that because it is about HTTP2 the headers were not sent after the first connection, but all the important headers were added.
other ways of doing this process are also welcome