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• ffmpeg Progress Bar - Encoding Percentage in PHP

  11 juillet 2016, par Jimbo

  I’ve written a whole system in PHP and bash on the server to convert and stream videos in HTML5 on my VPS. The conversion is done by ffmpeg in the background and the contents is output to block.txt.

  Having looked at the following posts :

  Can ffmpeg show a progress bar ?

  and

  ffmpeg video encoding progress bar

  amongst others, I can’t find a working example.

  I need to grab the currently encoded progress as a percentage.

  The first post I linked above gives :

  $log = @file_get_contents('block.txt');
  
  
  
  preg_match("/Duration:([^,]+)/", $log, $matches);
  
  list($hours,$minutes,$seconds,$mili) = split(":",$matches[1]);
  
  $seconds = (($hours * 3600) + ($minutes * 60) + $seconds);
  
  $seconds = round($seconds);
  
  
  
  $page = join("",file("$txt"));
  
  $kw = explode("time=", $page);
  
  $last = array_pop($kw);
  
  $values = explode(' ', $last);
  
  $curTime = round($values[0]);
  
  $percent_extracted = round((($curTime * 100)/($seconds)));
  
  
  
  echo $percent_extracted;

  The $percent_extracted variable echoes zero, and as maths is not my strong point, I really don’t know how to progress here.

  Here’s one line from the ffmpeg output from block.txt (if it’s helpful)

  time=00:19:25.16 bitrate= 823.0kbits/s frame=27963 fps= 7 q=0.0 size=
  117085kB time=00:19:25.33 bitrate= 823.1kbits/s frame=27967 fps= 7
  q=0.0 size= 117085kB time=00:19:25.49 bitrate= 823.0kbits/s
  frame=27971 fps= 7 q=0.0 size= 117126kB

  Please help me output this percentage, once done I can create my own progress bar. Thanks.

• Android mp4 Media File Won't play

  17 juillet 2014, par Liron

  I had the same problem as here which I thought was because the files (recorded on iOS) were encoded as .mov instead of .mp4.

  I then changed the encoding mechanism on my iOS app to encode them as mp4, and I’m still seeing the same problem.

  When I load the file with

  File videoFile = ...;
  
  videoView.setVideoPath(videoFile.getAbsolutePath());
  
  videoView.start();

  I get E/MediaPlayer(2069): error (1, -2147483648).

  When I load the file with the following (from the link above).

  Uri uri = Uri.parse(VideoProvider.CONTENT_URI_BASE + Uri.encode(videoFile.getAbsolutePath()));
  
  videoView.setVideoURL(url);
  
  videoView.start();

  I get this in logcat

  07-17 08:05:58.283: W/VideoView(2276): Unable to open content: content://com.companyname.VideoProvider.files.files/%2Fdata%2Fdata%2Fcom.companyname.myappname%2Fcache%2FiX0mXVPxih.mp4
  
  07-17 08:05:58.283: W/VideoView(2276): java.io.IOException: setDataSource failed.: status=0x80000000

  ffmpeg tells me the following about the media file :

  ffmpeg -i media.mp4
  
  ffmpeg version 2.2 Copyright (c) 2000-2014 the FFmpeg developers
  
  built on Mar 26 2014 15:29:01 with Apple LLVM version 5.1 (clang-503.0.38) (based on LLVM 3.4svn)
  
  configuration: --prefix=/usr/local/Cellar/ffmpeg/2.2 --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. 66.100 / 52. 66.100
  
    libavcodec     55. 52.102 / 55. 52.102
  
    libavformat    55. 33.100 / 55. 33.100
  
    libavdevice    55. 10.100 / 55. 10.100
  
    libavfilter     4.  2.100 /  4.  2.100
  
    libavresample   1.  2.  0 /  1.  2.  0
  
    libswscale      2.  5.102 /  2.  5.102
  
    libswresample   0. 18.100 /  0. 18.100
  
    libpostproc    52.  3.100 / 52.  3.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'media.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 1
  
      compatible_brands: mp41mp42isom
  
      creation_time   : 2014-07-17 08:59:24
  
    Duration: 00:00:08.14, start: 0.000000, bitrate: 1084 kb/s
  
      Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, smpte170m), 360x480, 1027 kb/s, 24.46 fps, 29.97 tbr, 600 tbn, 1200 tbc (default)
  
      Metadata:
  
        creation_time   : 2014-07-17 08:59:24
  
        handler_name    : Core Media Video
  
      Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 62 kb/s (default)
  
        Metadata:
  
          creation_time   : 2014-07-17 08:59:24
  
          handler_name    : Core Media Audio

  Any idea why this file might be failing to load ?

  EDIT : Seems that this is mostly an issue when running in the emulator, but on a device I seem to have succeeded it getting it to work if I use a SurfaceView and MediaPlayer instead of VideoView.

• how to use ffmpeg to do video compression in android [duplicate]

  26 février 2014, par user963241

  This question already has an answer here :

  • Compress Videos using FFMPEG and JNI
    
    1 answer
    

  I tried to compile the ffmpeg to shared library to android

  where can i find the jni ffmpeg sample code to reduce the video size ?
  thanks.