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• Php - Get video duration from a file hosted on amazon S3 server

  8 mai 2017, par Michael Lee

  I am developing back-end API with php to get the duration from a video file hosted on amazon S3. The API server is hosted on amazon EC2 and the video file is uploaded on amazon S3. The problem is when I request to API server, it has to response the information of the video file hosted on amazon S3 such as duration, file size, resolution etc. At least, it must response the video. I’ve followed codes by using ffmpeg such as below, but it’s not working.

  <?php
  
  $file = 'https://videoapptest-bucket.s3.amazonaws.com/video/10/44__55_f03876434e48d5fed7d6982b0cf578de_u_00000.ts';
  
  $result = shell_exec('ffmpeg -i ' . escapeshellcmd($file) . ' 2>&1');
  
  preg_match('/(?<=Duration: )(\d{2}:\d{2}:\d{2})\.\d{2}/', $result, $match);
  
  print_r($match);
  
  ?>

  How can I get the video duration from a file hosted on amazon s3 with ffmpeg or another tool ?

• Anomalie #2855 : mauvais traitement du signe par textwheel

  9 août 2014, par cedric -

  Coquille dans le test, corrigée par http://zone.spip.org/trac/spip-zone/changeset/84111
  Si on dit que les < doivent être échappés dans la mesure du possible, le patch suivant semble faire le boulot sans casser aucun autre test.
  Mais est-ce que ça en vaut vraiment la peine ?

  Index : wheels/spip/spip.yaml
  ===================================================================
  
  — - wheels/spip/spip.yaml       (revision 83994)
  +++ wheels/spip/spip.yaml       (working copy)
  @@ -183,3 +183,9 @@
     match : ["\x1\x1", "\x1\x2", "\x1\x3", "\x1\x4"]
     replace : [’’, ’’, ’_’, ’-’]
     type : str
  +
  +echapg-—chevron-ouvrant :
  +  #if_str : "
  &lt;script&quot; <br />
  
  +  type: preg<br />
  
  +  match: &quot;/&lt;([^&gt;&lt;]*)(?=&lt;|$)/Uims&quot; <br />
  
  +  replace: &quot;&amp;amp;lt;$1&quot; <br />
  
  &lt;/pre&gt;

• How can i decode an mp3 and encode it as aac with ezstream

  8 avril 2015, par Roberto Arosemena

  This is my current ezstream config

  <ezstream>
  
     <url>http://localhost:8000/test</url>
  
     <sourcepassword>password</sourcepassword>
  
     <format>MP3</format>
  
     <filename>playlist.m3u</filename>
  
     <reencode>
  
        <enable>1</enable>
  
        <encdec>
  
           <format>MP3</format>
  
           <match>.mp3</match>
  
           <decode>madplay -b 16 -R 44100 -S -o raw:- "@T@"</decode>
  
           <encode>lame --preset cbr 32 -r -s 44.1 --bitwidth 16 - -</encode>
  
        </encdec>
  
     </reencode>
  
  </ezstream>

  It’s mounting to an icecast server, its decoding and encoding mp3 to a lower bitrate, I’m trying to encode it to aac instead of mp3 in hopes that the quality improves as i heard that aac is better than mp3 for lower bitrates.

  What i would like to know is if i can use an aac encoder such as FFmpeg instead of the lame mp3 encoder and get an aac to the end user instead of mp3, if so what parameters should i pass to FFmpeg so that it works with my current config.