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• Convert video from image and audio files using FFMPEG

  22 janvier 2016, par Rama Lingam

  Here i am converted video from images(8) and audio(file size : 307KB).
  But the video is playing one image with audio and others are without audio.
  In my knoledge : Because the audio file size is very low.
  I want to converted video playing all images with audio.
  Sample code :

  $audioPath = 'upload/2016/01/tmp_81332/audio_1453307709.wav';
  
  $convAudioPath = 'upload/2016/01/tmp_81332/output.mp3';
  
  $ffmpeg = '/usr/bin/ffmpeg';
  
  
  
  $convImgPath = 'upload/2016/01/tmp_81332/image%d.jpeg';
  
  $output = 'upload/2016/01/video_81332_1453307709.mp4';
  
  
  
  exec("$ffmpeg -i $audioPath -f mp2 $convAudioPath");
  
  exec("$ffmpeg -framerate 1/5 -i $convImgPath -i $convAudioPath -c:v libx264 -c:a aac -strict experimental -b:a 16k -shortest $output");

  However this extends the output video file to be the length of the audio file if it is longer than the video. Using -shortest cuts the video file short if the audio file is shorter than the video. So is there a flag to tell ffmpeg to cut the keep the length of the output video to the length of the input video ?

• iPhone video conversion to Android supported format using FFMPEG

  21 janvier 2016, par Muhammad Umar

  I have an iPhone video created as follow

  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'vid.mp4':
  
    Metadata:
  
      major_brand     : qt  
  
      minor_version   : 0
  
      compatible_brands: qt  
  
      creation_time   : 2016-01-20 09:21:08
  
      make            : Apple
  
      make-eng        : Apple
  
      encoder         : 8.2
  
      encoder-eng     : 8.2
  
      date            : 2016-01-20T14:20:57+0500
  
      date-eng        : 2016-01-20T14:20:57+0500
  
      model           : iPhone 5
  
      model-eng       : iPhone 5
  
    Duration: 00:00:10.80, start: 0.000000, bitrate: 765 kb/s
  
      Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 62 kb/s (default)
  
      Metadata:
  
        creation_time   : 2016-01-20 09:21:08
  
        handler_name    : Core Media Data Handler
  
      Stream #0:1(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 320x320, 696 kb/s, 30 fps, 30 tbr, 600 tbn, 1200 tbc (default)
  
      Metadata:
  
        creation_time   : 2016-01-20 09:21:08
  
        handler_name    : Core Media Data Handler
  
        encoder         : H.264

  I want to convert it into Android support format so that all iPhone and maximum androids can read it.

  However if i convert to mpeg4 format using

  ffmpeg -i vid.mp4 -s 320x320 -vcodec mpeg4 -acodec aac -strict -2 -ac 2 -ar 44100 -ab 128k output.mp4

  it really degrades the quality

  How can i set the ffmpeg to create atleast as close as possible quality which runs on both android and iPhone

• Anomalie #3661 (Fermé) : Gestion d’un proxy

  22 janvier 2016, par Emmanuel Collignon

  Bonjour,

  Petit bug introduit par r22546 qui provoque un dysfonctionnement en cas d’utilisation d’un proxy.
  La correction est triviale mais j’ai tout de même fait un diff.....

  
  — - ecrire/inc/distant.php.ORIG    2016-01-22 10:33:40.000000000 +0100
  +++ ecrire/inc/distant.php    2016-01-22 10:33:57.000000000 +0100
  @@ -1095,7 +1095,7 @@
           $http_proxy = isset($GLOBALS[’meta’]["http_proxy"]) ? $GLOBALS[’meta’]["http_proxy"] : null ;
       
       if (is_null($http_noproxy)) 
  
   $http_noproxy = isset($GLOBALS[’meta’]["http_noproxy"]) ? $GLOBALS[’meta’]["http_proxy"] : null ;
  +        $http_noproxy = isset($GLOBALS[’meta’]["http_noproxy"]) ? $GLOBALS[’meta’]["http_noproxy"] : null ;
       
       $domain = substr($host, strpos($host, ’.’)) ;