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• Can FFMPEG library send the live H264 iOS Camera stream to Wowza using RTSP

  7 janvier 2015, par Vishal Lohia

  My requirement is to get iphone camera feed, encode it into H264 format and send it to server.
  In search, I found encoding part is possible with ffmpeg lib with x264 (libx264). But now the next task is to send the encoded data to Wowza server using rtsp.

  Please share some code or useful document if anyone is aware about this.

  There is one another library for encoding purpose live555. But I am not sure it can send the data to server using rtsp.

• How to write out a MOV video into a raw, uncompressed format ?

  8 juin 2015, par feroze

  I have a video in a MOV file format, shot using an IPhone. I have to convert it into an uncompressed raw format, with multiple frames laid out one after the other. This has to be written to a file for post processing.

  Is there a stock format out there that I can convert this video to, using ffmpeg ? If not, I will have to write a C program to open the MOV file and write out the video. I have never worked in video land before, so I am confused about the options.

  I took a look at ffmpeg documentation, and did a web search, but all of them are talking about using ffmpeg as a command line tool, and not about how to write out a file format that I want.

• ffmpeg MAMP "dyld : Library not loaded" error

  9 octobre 2013, par benedict_w

  I am using ffmpeg on Mac OSX 10.7.3 in MAMP through PHP's exec() command, I have an absolute path set to call ffmpeg, e.g.

  /opt/local/bin/ffmpeg -i "/sample.avi"

  But I receive the following error -

  dyld: Library not loaded: /opt/local/lib/libjpeg.8.dylib  Referenced from: /opt/local/lib/libopenjpeg.1.dylib  Reason: Incompatible library version: libopenjpeg.1.dylib requires version 13.0.0 or later, but libJPEG.dylib provides version 12.0.0

  N.B. ffmpeg was installed through Macports.

  It works from the command line.

  What to do ?

  EDIT

  I've reopened this - originally thought shell_exec() solved the issue, but infact it should be called differently - and I didn't realise until investigating further today. Here is my code using shell_exec and still giving the error above :

   $cmd = '/opt/local/bin/ffmpeg -h';
  
   $cmd = escapeshellcmd($cmd) . ' 2>&1';
  
   $output = shell_exec($cmd);
  
   var_dump($output);