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• doc/codecs : Update documentation for flags/flags2

  4 octobre 2019, par Jun Zhao

  doc/codecs : Update documentation for flags/flags2
  Update documentation for flags/flags2
  Signed-off-by : Jun Zhao <barryjzhao@tencent.com>
  

  • [DH] doc/codecs.texi

• doc/codecs.texi : add new and missing color related options

  14 novembre 2016, par James Almer

  doc/codecs.texi : add new and missing color related options
  Found-by : Michael Niedermayer <michael@niedermayer.cc>
  
  Signed-off-by : James Almer <jamrial@gmail.com>
  

  • [DH] doc/codecs.texi

• How to convert video to all possible codecs ?

  7 juin 2022, par Beelzebub

  im tryin to find codecs that works on awesomium (chromium 18 iirc).
  
To got this ive made a simple php script that automatically does this.

  


  <?php
    $result = shell_exec("ffmpeg -codecs");
    $codecs = preg_split("/\r\n|\n|\r/", $result);

    for ($i = 10; $i < count($codecs) - 1; $i++) {
        $codec = $codecs[$i];
        $split = explode(" ", $codec);
        $info = $split[1];
        if ($info[2] == "V" && $info[1] == "E") { # video codec & encoding supported
            $codec = $split[2];
            #echo($codec ."\n");
            shell_exec("ffmpeg -i 'test.mp4' -c:v $codec 'result/$codec.mp4'");
        }
    }
?>


  


  But I have a problem - ffmpeg requires specifying the correct extension of the output file to determine whats container should be used.
  
Is there any way to get the file extension knowing the codec name ?
  
Or maybe there is some arguments for ffmpeg that will allows to write a file in any extension (I could just save all the files with .mp4 ext, the browser determines how it plays the video not by the file extension).
  
Or maybe there are other utilities besides ffmpeg that will help me do this.