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• Why is exec('which ffmpeg') returning nothing in my application ?

  28 avril 2015, par EchoLogic

  I’m trying to deal with FFMpeg for my application, but I’m encountering some difficulty in getting it set up. To instantiate or create an instance of FFMpeg, I need to call a create() method and pass through the operating locations of FFMpeg and FFProbe. To do this, I was hoping to be able to write :

          $ffmpeg = FFMpeg\FFMpeg::create([
  
                  'ffmpeg.binaries' => exec('which ffmpeg'),
  
                  'ffprobe.binaries' => exec('which ffprobe')
  
          ]);

  But, sadly, the command exec('which ffmpeg') returns an empty string. If I run the ’which ffmpeg’ command in Terminal, I get a response :

  /usr/local/bin/ffmpeg

  So why does it work in my terminal, but not when my PHP script tries to execute it ?

  I’ve tried a few solutions, such as appending 2>&1 to the end of the command, which did not help, running the command in shell_exec(), and placing the output in the second parameter of exec() which also did not solve my issue.

  I feel like this may be some sort of weird permissions issue...

  Addendum

  It has been brought to my attention that PHP cannot see my $PATH variable. From the console, echo $PATH produces :

  /Applications/MAMP/bin/php/php5.6.2/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:‌​/sbin:/opt/X11/bin:/usr/local/git/bin:/opt/ImageMagick/bin

  While calling the same from my application with exec() produces :

  /usr/bin:/bin:/usr/sbin:/sbin237.671000 

• Multiple mdhd ? Error while processing Video

  10 mai 2024, par Kaunain

  I am facing a weird error in FFMPG while doing any operation of a particular video. I did a lot of R&D but did not found any solution regarding this. Can anyone of you please look into it, it will be so kind.

  


  here is a command i am using to mute the video, but end up with the following error.

  


  fun videoMuteCmd(&#xA;    filePath: Uri,&#xA;    outputPath: String,&#xA;): Array<string> {&#xA;    return arrayOf(&#xA;        "-y", "-i", filePath.toString(),&#xA;       &#xA;        "-c", "copy", "-an", outputPath&#xA;    )&#xA;}&#xA;</string>

  


  ERROR

  


  


   : LogMessageexecutionId=3010, level=AV_LOG_ERROR,
text='[mov,mp4,m4a,3gp,3g2,mj2
@ 0xb400007c1243e000] Multiple mdhd ?
'

  


   : LogMessageexecutionId=3010, level=AV_LOG_ERROR,
text='[mov,mp4,m4a,3gp,3g2,mj2
@ 0xb400007c1243e000] error reading header
'

  


  LogMessageexecutionId=3010, level=AV_LOG_ERROR,
text='/storage/emulated/0/Android/media/com.whatsapp/WhatsApp/Media/WhatsApp
Video/VID-20240510-WA0037.mp4 : Invalid data found when
processing input
'

  


  


  Please look into this error and please suggest the possible fix.

  


• ffmpeg input stream's fps detection bug [closed]

  10 mai 2024, par I have 10 fingers

  I have ffmpeg setup which produces rtmp stream from remote rtsp stream. The rtsp stream comes from ip camera which support multiple profiles. Each profile has 1080p 30 fps, 1080p 15 fps.

  


  The weird thing is that when ffmpeg analyze its input stream, one profile is recognized as 1 fps as below

  


  Input #0, rtsp, from 'rtsp://...':
  Metadata:
    title           : Media Presentation
    comment         : samsung
  Duration: N/A, start: 0.064144, bitrate: N/A
    Stream #0:0: Video: h264 (High), yuvj420p(pc, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 1 fps, 1 tbr, 90k tbn, 2 tbc
    Stream #0:1: Data: none
Output #0, flv, to 'rtmp:...':
  Metadata:
    title           : Media Presentation
    comment         : samsung
    encoder         : Lavf58.29.100
    Stream #0:0: Video: h264 (High) ([7][0][0][0] / 0x0007), yuvj420p(pc, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 1 fps, 1 tbr, 1k tbn, 90k tbc
Stream mapping:
  Stream #0:0 -> #0:0 (copy)


  


  And when it is played the tbr is 30 i think it means the real fps from video stream is 30.

  


  The other stream is normal 30 fps input 30 fps. I want to know what cause this fps detection bug ?