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• Realtime ffmpeg shell output PHP

  26 septembre 2013, par matthew johnston

  Alright, I've been fighting this problem for a few days. Works fine on my local windows machine but, can't seem to get it to work on my CentOS server. My script grabs the duration of the video being converted and also grabs the current seconds it has processed inside of ffmpeg. However, it is only grabbing the "input file" of the ffmpeg output and stopping there. I have tried using both pipes (STDOUT [1] & STDERR [2]) for some reason ffmpeg likes to output on the STDERR pipe. Weird.

  $filename = "somefilename.tmp";
  
  $descriptor = array(
  
      0 => array("pipe", "r"),
  
      1 => array("pipe", "w"),
  
      2 => array("pipe", "w")
  
  );
  
  
  
  $ffmpeg = "ffmpeg -i /var/www/spotloader/videos/flipped/tmp/".$file."_comb.ts -vcodec mpeg2video -acodec pcm_s16le -pix_fmt yuv422p -vtag xdvb -b:v 13000k -r 30000/1001 /var/www/spotloader/videos/flipped/tmp/".$file.".mov";
  
  
  
  //open the process
  
  $process = proc_open($ffmpeg, $descriptor, $pipes, NULL, $_ENV);
  
  
  
  //if the process opened
  
  if ( is_resource( $process ) == true )
  
  {
  
      //get process status
  
      $procStatus = proc_get_status( $process );
  
  
  
      //if its running, let node know
  
      if ( $procStatus['running'] )
  
      {
  
          //nodejs socket, nothing wrong here
  
          $this->_sendSocket('converting', array('filename' => str_replace('.tmp', '', $file)));
  
      }
  
  
  
      //while the process is running
  
      while( $procStatus['running'] === true )
  
      {
  
          //there is output in the pipe
  
          if ( !feof( $pipes[1] ) )
  
          {
  
              //get the output
  
              $data = fgets($pipes[1], 128);
  
              //match the outputs duration and save it.
  
              if(preg_match('/Duration:\s([0-9]{2}:[0-9]{2}:[0-9]{2})/', $data, $matches)) 
  
              {
  
                  static $duration;
  
                  $duration = $this->_convertToSeconds($matches[1]);
  
              }
  
  
  
              //match the outputs current encoding time
  
              if(preg_match('/time=([0-9]{2}:[0-9]{2}:[0-9]{2})/', $data, $matches)) 
  
              {
  
                  //convert to seconds works fine, so it is not included.
  
                  $curTime = $this->_convertToSeconds($matches[1]);
  
                  //nodejs socket, nothing wrong here
  
                  $this->_sendSocket('update', array('percent' => round( ($curTime / $duration) * 100), 'filename' => str_replace('.tmp', '', $file)));
  
              }
  
          }
  
  
  
          //update process status
  
          $procStatus = proc_get_status( $process );
  
      }
  
  
  
      //nodejs socket, nothing wrong here
  
      $this->_sendSocket('converted', array('percent' => 100, 'filename' => str_replace('.tmp', '', $file)));
  
  }

  FFMPEG output I receive using the PHP code above

  ffmpeg version 1.2.1 Copyright (c) 2000-2013 the FFmpeg developers
  
  built on May 10 2013 15:14:14 with gcc 4.4.6 (GCC) 20120305 (Red Hat 4.4.6-4)
  
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 
  
  --mandir=/usr/share/man --enable-shared --enable-runtime-cpudetect --enable-gpl 
  
  --enable-version3 --enable-postproc --enable-avfilter --enable-pthreads 
  
  --enable-x11grab --enable-vdpau --disable-avisynth --enable-frei0r --enable-libopencv 
  
  --enable-libdc1394 --enable-libgsm --enable-libmp3lame --enable-libnut 
  
  --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg 
  
  --enable-librtmp --enable-libspeex --enable-libtheora --enable-libvorbis 
  
  --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid 
  
  --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions 
  
  -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' 
  
  --disable-stripping
  
  libavutil      52. 18.100 / 52. 18.100
  
  libavcodec     54. 92.100 / 54. 92.100
  
  libavformat    54. 63.104 / 54. 63.104
  
  libavdevice    54.  3.103 / 54.  3.103
  
  libavfilter     3. 42.103 /  3. 42.103
  
  libswscale      2.  2.100 /  2.  2.100
  
  libswresample   0. 17.102 /  0. 17.102
  
  libpostproc    52.  2.100 / 52.  2.100
  
  [mpegts @ 0x243c620] max_analyze_duration 5000000 reached at 5016000 microseconds
  
  Input #0, mpegts, from '/var/www/spotloader/videos/flipped/tmp/Wildlife10.tmp_comb.ts':
  
  Duration: 00:00:02.02, start: 1.389978, bitrate: 227018 kb/s
  
  Program 1
  
  Metadata:
  
    service_name    : Service01
  
    service_provider: FFmpeg
  
  Stream #0:0[0x100]: Video: mpeg2video (4:2:2) ([2][0][0][0] / 0x0002), yuv422p, 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
  
  Stream #0:1[0x101](eng): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, 1 channels (FL+FR), s16p, 128 kb/s

  FFMPEG output I'm expecting the "time=00:00:00" towards the end is what I need to capture in realtime. This is taken by running the FFMPEG command directly in the shell.

  ffmpeg version 1.2.1 Copyright (c) 2000-2013 the FFmpeg developers
  
  built on May 10 2013 15:14:14 with gcc 4.4.6 (GCC) 20120305 (Red Hat 4.4.6-4)
  
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 
  
  --mandir=/usr/share/man --enable-shared --enable-runtime-cpudetect --enable-gpl 
  
  --enable-version3 --enable-postproc --enable-avfilter --enable-pthreads 
  
  --enable-x11grab --enable-vdpau --disable-avisynth --enable-frei0r --enable-libopencv 
  
  --enable-libdc1394 --enable-libgsm --enable-libmp3lame --enable-libnut 
  
  --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg 
  
  --enable-librtmp --enable-libspeex --enable-libtheora --enable-libvorbis 
  
  --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid 
  
  --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions 
  
  -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' 
  
  --disable-stripping
  
    libavutil      52. 18.100 / 52. 18.100
  
    libavcodec     54. 92.100 / 54. 92.100
  
    libavformat    54. 63.104 / 54. 63.104
  
    libavdevice    54.  3.103 / 54.  3.103
  
    libavfilter     3. 42.103 /  3. 42.103
  
    libswscale      2.  2.100 /  2.  2.100
  
    libswresample   0. 17.102 /  0. 17.102
  
    libpostproc    52.  2.100 / 52.  2.100
  
  [mpegts @ 0x10c9620] max_analyze_duration 5000000 reached at 5016000 microseconds
  
  Input #0, mpegts, from '/var/www/spotloader/videos/flipped/tmp/Wildlife10.tmp_comb.ts':
  
    Duration: 00:00:02.02, start: 1.389978, bitrate: 227018 kb/s
  
    Program 1
  
      Metadata:
  
        service_name    : Service01
  
        service_provider: FFmpeg
  
      Stream #0:0[0x100]: Video: mpeg2video (4:2:2) ([2][0][0][0] / 0x0002), yuv422p, 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
  
      Stream #0:1[0x101](eng): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, 1 channels (FL+FR), s16p, 128 kb/s
  
  Channel layout 'stereo' with 2 channels does not match specified number of channels 1: ignoring specified channel layout
  
  Output #0, mov, to '/var/www/spotloader/videos/flipped/tmp/Wildlife10.tmp.mov':
  
    Metadata:
  
      encoder         : Lavf54.63.104
  
      Stream #0:0: Video: mpeg2video (xdvb / 0x62766478), yuv422p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 13000 kb/s, 30k tbn, 29.97 tbc
  
      Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, stereo, s16, 1536 kb/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (mpeg2video -> mpeg2video)
  
    Stream #0:1 -> #0:1 (mp2 -> pcm_s16le)
  
  Press [q] to stop, [?] for help
  
  Input stream #0:1 frame changed from rate:48000 fmt:s16p ch:1 chl:1 channels (FL+FR) to rate:48000 fmt:s16p ch:2 chl:stereo
  
  Input stream #0:1 frame changed from rate:48000 fmt:s16p ch:2 chl:stereo to rate:48000 fmt:s16p ch:1 chl:mono
  
  Input stream #0:1 frame changed from rate:48000 fmt:s16p ch:1 chl:mono to rate:48000 fmt:s16p ch:2 chl:stereo
  
  Input stream #0:0 frame changed from size:1920x1080 fmt:yuv422p to size:1280x720 fmt:yuv422p0
  
  Input stream #0:1 frame changed from rate:48000 fmt:s16p ch:2 chl:stereo to rate:44100 fmt:s16p ch:2 chl:stereo
  
  frame=  741 fps= 52 q=2.6 size=   43866kB time=00:00:24.65 bitrate=14573.5kbits/s dup=5 drop=0

  Any ideas ? What needs changing from the switch from Windows to CentOS ?

  EDIT :
  I got this to work using popen instead. It also reduced my code. If anyone else does have a solution go ahead and post it. Thanks !

• How to cut video stream to pictures and convert into new video stream ? [on hold]

  17 septembre 2013, par DevellMen

  I have video stream from my camera. I need in realtime cut video to pictures and convert it to new video stream. It's realy ? It is necessary to convert video from Fisheye Camera to landscape. Anybody knows ? Maybe there are other solutions ?
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• Adding a line to Changelog about FFV1 version 1.3 now being stable

  14 septembre 2013, par Dave Rice

  Adding a line to Changelog about FFV1 version 1.3 now being stable
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