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• Quicktime cannot play recorded mp4 video file

  17 septembre 2014, par Dude

  I have an mp4 related issue. I’m not very good in video processing related stuff. We have a problem with an image file that is recorded via HTTP Live Streaming (HLS) from a live stream. The HLS chunks are just put together and saved on the file system as .mp4 file. This file cannot be played with Apple QuickTime. VLC can play it. But it is a requirement that it can be played with QuickTime.

  However, I found a solution that works. When I use the ffmpeg command -reset_timestamps, the video file can be played with QuickTime. I also see which parameter changes. It’s the start value.

  Before use of the command :

  ffmpeg -i recorded_file.mp4 
  
  
  
  ffmpeg version 1.2.4 Copyright (c) 2000-2013 the FFmpeg developers
  
    built on Jan  9 2014 09:06:57 with Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/1.2.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid
  
    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
  
  [h264 @ 0x7fcb7b015a00] non-existing SPS 2 referenced in buffering period
  
  [h264 @ 0x7fcb7b015a00] non-existing PPS referenced
  
  [h264 @ 0x7fcb7b015a00] non-existing SPS 2 referenced in buffering period
  
  [h264 @ 0x7fcb7b015a00] non-existing PPS 0 referenced
  
  [h264 @ 0x7fcb7b015a00] decode_slice_header error
  
  [h264 @ 0x7fcb7b015a00] no frame!
  
  [mpegts @ 0x7fcb7b004a00] max_analyze_duration 5000000 reached at 5013333 microseconds
  
  [mpegts @ 0x7fcb7b004a00] Could not find codec parameters for stream 2 (Unknown: none ([21][0][0][0] / 0x0015)): unknown codec
  
  Consider increasing the value for the 'analyzeduration' and 'probesize' options
  
  [NULL @ 0x7fcb7b016a00] start time is not set in estimate_timings_from_pts
  
  Input #0, mpegts, from 'recorded_file.mp4':
  
    Duration: 00:25:00.01, start: 68428.580933, bitrate: 1499 kb/s
  
    Program 1 
  
      Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p, 1024x576 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
  
      Stream #0:1[0x101]: Audio: aac ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 124 kb/s
  
      Stream #0:2[0x102]: Unknown: none ([21][0][0][0] / 0x0015)

  Use of the command :

  ffmpeg -i recorded_file.mp4 output.mp4 -reset_timestamps 0

  File after use of the command :

  ffmpeg -i output.mp4 
  
  
  
  ffmpeg version 1.2.4 Copyright (c) 2000-2013 the FFmpeg developers
  
    built on Jan  9 2014 09:06:57 with Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/1.2.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-libxvid
  
    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
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'output.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf54.63.104
  
    Duration: 00:25:00.04, start: 0.021333, bitrate: 1358 kb/s
  
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1024x576 [SAR 1:1 DAR 16:9], 1224 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 127 kb/s
  
      Metadata:
  
        handler_name    : SoundHandler

  A lot of the text output changes but the line with the duration, start and bitrate is interesting, as the start value is set to near zero.

  Duration: 00:25:00.04, start: 0.021333, bitrate: 1358 kb/s

  So to use this solution would be enough. The problem is, I cannot use ffmpeg in the solution that downloads the file (it’s for Android). So I try to find a way to do this in Java. However, as I have not much experience in Video processing, I can’t figure out, what this ffmpeg command does and therefore don’t know in which direction to look for a Java solution.

  Is there a library that may do the same operation in Java or is there an easy way to do it myself in Java (like adjusting the file timestamp) ?

  Thanks for you help !

  EDIT : The whole console output is now shown, instead of just a part of it.

• Stream input to stream output using avserver

  13 janvier 2014, par Gustavo Sgarbi Campos

  I'm trying to use the avserver package to re-stream my ip camera's stream in order to be able to record this stream and access it remotelly without having to stream it twice from the camera, to avoid overloading the wireless network.

  Following this link https://libav.org/avserver.html I came up with the following command :

  avserver -f /etc/avserver.conf & avconv -i http://user:password@192.168.1.121/videostream.asf http://localhost:80/feed1.ffm

  This gives me the following output

  avserver version 0.8.3-6:0.8.3-6ubuntu2, Copyright (c) 2000-2012 the Libav developers
  
  built on Oct  1 2012 15:03:26 with gcc 4.7.2
  
  avconv version 0.8.3-6:0.8.3-6ubuntu2, Copyright (c) 2000-2012 the Libav developers
  
  built on Oct  1 2012 15:03:26 with gcc 4.7.2
  
  Mon Jan 13 20:13:44 2014 AVserver started.
  
  [asf @ 0x153cac0] max_analyze_duration reached
  
  [asf @ 0x153cac0] Estimating duration from bitrate, this may be inaccurate
  
  Input #0, asf, from 'http://admin:gafit@192.168.1.121/videostream.asf':
  
  Duration: N/A, start: 0.000000, bitrate: 32 kb/s
  
  Stream #0.0: Video: mjpeg, yuvj422p, 320x240, 100 tbr, 1k tbn, 1k tbc
  
  Stream #0.1: Audio: adpcm_ima_wav, 8000 Hz, 1 channels, s16, 32 kb/s
  
  Incompatible pixel format 'yuvj422p' for codec 'mpeg1video', auto-selecting format 'yuv420p'
  
  [buffer @ 0x153ec80] w:320 h:240 pixfmt:yuvj422p
  
  [avsink @ 0x1544820] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
  
  [scale @ 0x1543460] w:320 h:240 fmt:yuvj422p -> w:320 h:240 fmt:yuv420p flags:0x4
  
  [mp2 @ 0x1544aa0] Requested sampling rate unsupported using closest supported (16000)
  
  Mon Jan 13 20:13:50 2014 Feed '/tmp/feed1.ffm.ffm' stream number does not match registered feed
  
  Output #0, ffm, to 'http://localhost:80/feed1.ffm':
  
  Metadata:
  
  encoder         : Lavf53.21.0
  
  Stream #0.0: Video: mpeg1video, yuv420p, 320x240 [PAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 1000k tbn, 60 tbc
  
  Stream #0.1: Audio: mp2, 16000 Hz, 1 channels, s16, 128 kb/s
  
  Stream mapping:
  
  Stream #0:0 -> #0:0 (mjpeg -> mpeg1video)
  
  Stream #0:1 -> #0:1 (adpcm_ima_wav -> mp2)
  
  Press ctrl-c to stop encoding
  
  Mon Jan 13 20:13:50 2014 127.0.0.1 - - [POST] "/feed1.ffm HTTP/1.1" 200 4096

  When I try to open this stream via VLC, using

  http://192.168.1.15/test.asf

  I get the following additional output

  Mon Jan 13 20:17:39 2014 192.168.1.6 - - [GET] "/test.asf HTTP/1.1" 200 115s dup=12210 drop=0    
  
  Mon Jan 13 20:17:39 2014 Codec for stream 0 does not use global headers but container format requires global headers
  
  Mon Jan 13 20:17:39 2014 Codec for stream 1 does not use global headers but container format requires global headers

  And I get nothing on VLC. I'm not quite sure what is going on or how to fix it, so any enlightning on this would be very welcome.

  Thank you all in advance !

• Malformed header from CGI script

  13 janvier 2014, par user3188518

  This message is driving me crazy :

  Malformed header from CGI script:
  
  ffmpeg version 1.2.1 Copyright (c) 2000-2013 the FFmpeg developers
  
    built on May 10 2013 16:31:05 with gcc 4.8.0 (GCC) 20130502 (prerelease)
  
    configuration: --prefix=/usr --disable-debug --disable-static --enable-avresample --enable-dxva2 --enable-fontconfig --enable-gpl --enable-libass --enable-libbluray --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libv4l2 --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-postproc --enable-runtime-cpudetect --enable-shared --enable-vdpau --enable-version3 --enable-x11grab
  
    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
  
  Guessed Channel Layout for  Input Stream #0.0 : stereo
  
  Input #0, wav, from '/projekt/aplikacja/app/92ed9478ecfa4a4dfb176f417d4ef66c/2014-01-12-220148_sample_1.wav':
  
    Duration: 00:02:35.62, bitrate: 1411 kb/s
  
      Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
  
  Output #0, wav, to '/projekt/aplikacja/app/webroot/files/preview/2014-01-12-234038_52d327f6b2939.wav':
  
    Metadata:
  
      ISFT            : Lavf54.63.104
  
      Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, 1411 kb/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
  Press [q] to stop, [?] for help
  
  size=     864kB time=00:00:05.01 bitrate=1411.3kbits/s    
  
  video:0kB audio:864kB subtitle:0 global headers:0kB muxing overhead 0.009042%
  
  Status: 302
  
  Location: http://www.example.org/
  
  Content-type: text/html

  After executing this function :

     public function createpreview(){
  
           if ($this->request->is('post')) {
  
             foreach($this->request->data['TrackId'] as $key => $value){
  
                  $TrackId[] = $key;
  
              }
  
              $this->Track->recursive = -1;
  
              $view =  $this->Track->find('all', array(
  
                                'conditions' => array(
  
                                "Track.id" => $TrackId
  
                                 )));
  
              ini_set('date.timezone', 'Europe/London');
  
  
  
             foreach ($view as $v){
  
                $comand_1 = 'ffmpeg -i '.APP.'92ed9478ecfa4a4dfb176f417d4ef66c'.DS. $v['Track']['filename'].' 2>&1';
  
                $time_data = shell_exec($comand_1);
  
                $search = '/Duration: (.*?),/';
  
                $duration = preg_match($search, $time_data, $matches, PREG_OFFSET_CAPTURE, 3);
  
                $time = explode('.', $matches[1][0]);
  
                $time = explode(":", $time[0]);
  
                $seconds = $time[0]*3600 + $time[1]*60 + $time[2];
  
                if ($seconds >= 30){
  
  
  
               $now = date('Y-m-d-His');
  
                   $prew_file_name = $now .'_'. uniqid().'.wav';
  
                   $comand_2 = 'ffmpeg  -ss 00:00:25.000 -analyzeduration 99999999  -i '.APP.'92ed9478ecfa4a4dfb176f417d4ef66c'.DS. $v['Track']['filename'].' -t 5 -c:v copy -c:a copy '.WWW_ROOT.'files'.DS.'preview'.DS.$prew_file_name;
  
                      $t = shell_exec($comand_2);
  
                      $this->Track->updateAll(array('Track.preview' => "'.$prew_file_name.'"), array('Track.id' => $v['Track']['id']));
  
                    }
  
                 }
  
  
  
          }
  
           header('Location: http://www.example.org/');
  
         // $this->redirect(array('controller'=>'albums', 'action'=>'menage_index'));
  
     }

  As far as i know this shell_exec($comand_2) couses error (after i comment it out, it redirects me correctly).Googling this didn't gave me answers, the wierd part is previews aka shell_exec($comand_2) are made and fine, i just can't get it to redirect me. I tried non cake way but it doesn't work either.

  What I'm doing wrong ?