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• ffmpeg c++/Qt ( the program has unexpectedly finished )

  28 mai 2014, par user3678306

  Good morning

  I’ve searched for a solution and this is the closest to my problem :

  C++/Qt FFmpeg library error : program has unexpectedly finished

  but it crashes when I use

  avcodec_register_all();

  this is the main function :

  #include "mainwindow.h"
  
  #include <qapplication>
  
  
  
  int main(int argc, char *argv[])
  
  {
  
  
  
      QApplication a(argc, argv);
  
      MainWindow w;
  
      w.show();
  
      avcodec_register_all();
  
  
  
      return a.exec();
  
  }
  
  </qapplication>

  I added the library to the pro file :

  INCLUDEPATH +=C:/dev/include
  
  LIBS += C:/dev/lib/avcodec.lib

  I included it :

  extern "C"{
  
  #include<libavcodec></libavcodec>avcodec.h>
  
  }

  and when I call that function it crashes , when I remove it it works just fine.

  I’m using the dev version the latest one , my compiler is msvc 2011 86x and using the 32bit dev version my windows is 64 bit.

  I’m following this tutorial :

  http://dranger.com/ffmpeg/tutorial01.html

  Thanks in advance.

  Edit :

  Solved it I’m sorry for asking this simple question and wasting your time with me :(

  I’ve solved it after downloading the share version and putting the dlls in the exe folder.

• content generation for mpeg dash for Dash.if player

  9 mai 2014, par Pavan K

  Could anyone please tell me how to encode content to be player with the dash.if player on the chrome browser

  https://github.com/Dash-Industry-Forum/dash.js — This is the player in question.

  I tried mp4box and ffmpeg to create content but The samples pointed in the examples work well but I cant make my own videos to work with the dash player.

  I used all possible options on the mp4box with no luck [ from http://gpac.wp.mines-telecom.fr/2011/02/02/mp4box-fragmentation-segmentation-splitting-and-interleaving/ ]

• ffmpeg Using -movflags faststart

  17 avril 2016, par user3571514

  I tried to use the command -movflags faststart

  And got the following error :

  Microsoft Windows [Version 6.0.6002] Copyright (c) 2006 Microsoft
  Corporation. All rights reserved.

  C :\uploads\1\videos>ffmpeg -i simple1.mp4 -codec copy -map 0 -movflags faststart output.mp4

  -movflags faststart output.mp4 ffmpeg version N-34549-g13b7781, Copyright (c) 2000-2011 the FFmpeg developers built on Nov 6 2011
  22:02:08 with gcc 4.6.1 configuration : —enable-gpl
  —enable-version3 —disable-w32threads —enable-ru ntime-cpudetect —enable-avisynth —enable-bzlib —enable-frei0r —enable-libope ncore-amrnb —enable-libopencore-amrwb —enable-libfreetype
  —enable-libgsm —en able-libmp3lame —enable-libopenjpeg —enable-librtmp —enable-libschroedinger -
  -enable-libspeex —enable-libtheora —enable-libvo-aacenc —enable-libvo-amrwben c —enable-libvorbis —enable-libvpx —enable-libx264 —enable-libxavs —enable- libxvid —enable-zlib libavutil 51. 24. 0 / 51. 24. 0 libavcodec 53. 28. 0 / 53. 28.
  0 libavformat 53. 19. 0 / 53. 19. 0 libavdevice 53. 4. 0 / 53.
  4. 0 libavfilter 2. 47. 0 / 2. 47. 0 libswscale 2. 1. 0 / 2. 1. 0 libpostproc 51. 2. 0 / 51. 2. 0 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from ’simple1.mp4’ : Metadata :
  major_brand : isom
  minor_version : 512
  compatible_brands : isomiso2avc1mp41
  encoder : Lavf54.29.104 Duration : 00:02:32.81, start : 0.000000, bitrate : 1166 kb/s
  Stream #0:0(und) : Video : h264 (Main) (avc1 / 0x31637661), yuv420p, 854x480 [ SAR 1:1 DAR 427:240], 1064 kb/s, 29.97 fps, 29.97 tbr, 90k
  tbn, 59.94 tbc
  Metadata :
  handler_name : VideoHandler
  Stream #0:1(und) : Audio : aac (mp4a / 0x6134706D), 44100 Hz, mono, s16, 93 kb /s
  Metadata :
  handler_name : [mp4 muxer @ 04179D00] [Eval @ 0027DAB8] Undefined constant or missing ’(’ in ’f aststart’

  [mp4 muxer @ 04179D00] Unable to parse option value "faststart"

  [mp4 muxer @ 04179D00] Error setting option movflags to value
  faststart.

  Output #0, mp4, to ’output.mp4’ : Metadata :
  major_brand : isom
  minor_version : 512
  compatible_brands : isomiso2avc1mp41
  encoder : Lavf54.29.104
  Stream #0:0(und) : Video : h264, yuv420p, 854x480 [SAR 1:1 DAR 427:240], q=2-3 1, 1064 kb/s, 29.97 fps, 90k tbn, 29.97 tbc
  Metadata :
  handler_name : VideoHandler
  Stream #0:1(und) : Audio : aac, 44100 Hz, mono, 93 kb/s
  Metadata :
  handler_name : Stream mapping : Stream #0:0 -> #0:0 (copy) Stream #0:1 -> #0:1 (copy)

  Could not write header for output file #0 (incorrect codec parameters ?)