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• FFMPEG excute error from C# with "setup factory"setups

  15 mars 2012, par Savas Adar

  i am developing an application and i am using ffmpeg in this application for convert audio file "mp3" to "amr".

  My application running successfully when i debug it or when if i copy debug folder another computer, it is running.

  But, i am create a setup with "Setup Factory" application. When i install application which i create with setup factory, ffmpeg code block is not running, i get "OutputPackage" as null.

  here is code ;

  Converter converter = new Converter();
  
                          //varsa sil
  
                          if (File.Exists(PathTargetPre + "_orijinal.amr"))
  
                              File.Delete(PathTargetPre + "_orijinal.amr");
  
                          //dosyayı convert et ve olustur
  
                          OutputPackage oo = converter.ConvertToAMR(PathSource, PathTargetPre + "_orijinal.amr");
  
                          if (oo == null)
  
                          {
  
                              MessageBox.Show("Convert Error!");
  
                              return;
  
                          }
  
                          //dosya hazırlandı
  
                          if (oo.AudioStream == null)
  
                          {
  
                              MessageBox.Show("Convert Error 2!");
  
                              return;
  
                          }
  
  
  
                          lblGercekBoyut.Text = Convert.ToString((oo.AudioStream.Length / 1000)) + " KB";
  
  
  
                          lblSikismisBoyut.Text = Convert.ToString((oo.AudioStream.Length / 1000)) + " KB";
  
  
  
                          actualBitrate = converter.GetVideoInfo(PathTargetPre + "_orijinal.amr").BitRate;

  here is "ConvertToAMR" method ;

     public OutputPackage ConvertToAMR(string sourcePath, string destPath)
  
      {
  
          OutputPackage ou = new OutputPackage();
  
          string Params = string.Format("-i {0} -ar 8000 -ac 1 {1}", sourcePath, destPath);
  
          //-ab 320k
  
          string output = RunProcess(Params);
  
  
  
          if (File.Exists(destPath))
  
          {
  
              ou.AudioStream = LoadMemoryStreamFromFile(destPath);
  
          }
  
          return ou;
  
      }

• How to resolve OpenCV 2.3.1 compilation error on Ubuntu 11.10 due to FFmpeg [closed]

  14 mars 2012, par Cerin

  Possible Duplicate :
  compile opencv2.3.1 in ubuntu 11.10

  How do you prepare your environment so you can properly compile OpenCV 2.3.1 on Ubuntu 11.10 ?

  I'm following the OpenCV install guide, but it's instructions are frustratingly complex.

  However, I've distilled it into the following script :

  sudo apt-get install --yes cmake libjpeg62 libjpeg62-dev libtiff4 libtiff4-dev libjasper1 libjasper-dev libpng12-0 libpng12-dev libavformat-dev libswscale-dev openexr zlibc zlib1g zlib1g-dev python2.7-dev libgtk-3-dev gcc g++ libtbb-dev
  
  cd /tmp
  
  wget --output-document=OpenCV-2.3.1a.tar.bz2 http://sourceforge.net/projects/opencvlibrary/files/opencv-unix/2.3.1/OpenCV-2.3.1a.tar.bz2/download?use_mirror=iweb
  
  tar -xvjf OpenCV-2.3.1a.tar.bz2
  
  cd OpenCV-2.3.1
  
  mkdir release
  
  cd release
  
  time cmake -D WITH_TBB=ON -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_PYTHON_SUPPORT=ON -D BUILD_EXAMPLES=ON ..
  
  time make

  Everything runs succesfully, except of course for make which exits with the error :

  /tmp/OpenCV-2.3.1/modules/highgui/src/cap_ffmpeg_impl.hpp:1339:41: error: ‘guess_format’ was not declared in this scope
  
  /tmp/OpenCV-2.3.1/modules/highgui/src/cap_ffmpeg_impl.hpp:1367:31: error: ‘av_alloc_format_context’ was not declared in this scope
  
  /tmp/OpenCV-2.3.1/modules/highgui/src/cap_ffmpeg_impl.hpp:1411:9: warning: ‘int av_set_parameters(AVFormatContext*, AVFormatParameters*)’ is deprecated (declared at /usr/include/libavformat/avformat.h:1363) [-Wdeprecated-declarations]
  
  /tmp/OpenCV-2.3.1/modules/highgui/src/cap_ffmpeg_impl.hpp:1411:35: warning: ‘int av_set_parameters(AVFormatContext*, AVFormatParameters*)’ is deprecated (declared at /usr/include/libavformat/avformat.h:1363) [-Wdeprecated-declarations]
  
  /tmp/OpenCV-2.3.1/modules/highgui/src/cap_ffmpeg_impl.hpp:1415:5: warning: ‘void dump_format(AVFormatContext*, int, const char*, int)’ is deprecated (declared at /usr/include/libavformat/avformat.h:1485) [-Wdeprecated-declarations]
  
  /tmp/OpenCV-2.3.1/modules/highgui/src/cap_ffmpeg_impl.hpp:1415:35: warning: ‘void dump_format(AVFormatContext*, int, const char*, int)’ is deprecated (declared at /usr/include/libavformat/avformat.h:1485) [-Wdeprecated-declarations]
  
  /tmp/OpenCV-2.3.1/modules/highgui/src/cap_ffmpeg_impl.hpp:1442:15: warning: ‘int avcodec_open(AVCodecContext*, AVCodec*)’ is deprecated (declared at /usr/include/libavcodec/avcodec.h:3650) [-Wdeprecated-declarations]
  
  /tmp/OpenCV-2.3.1/modules/highgui/src/cap_ffmpeg_impl.hpp:1442:36: warning: ‘int avcodec_open(AVCodecContext*, AVCodec*)’ is deprecated (declared at /usr/include/libavcodec/avcodec.h:3650) [-Wdeprecated-declarations]
  
  /tmp/OpenCV-2.3.1/modules/highgui/src/cap_ffmpeg_impl.hpp:1479:13: warning: ‘int url_fopen(AVIOContext**, const char*, int)’ is deprecated (declared at /usr/include/libavformat/avio.h:278) [-Wdeprecated-declarations]
  
  /tmp/OpenCV-2.3.1/modules/highgui/src/cap_ffmpeg_impl.hpp:1479:52: warning: ‘int url_fopen(AVIOContext**, const char*, int)’ is deprecated (declared at /usr/include/libavformat/avio.h:278) [-Wdeprecated-declarations]
  
  /tmp/OpenCV-2.3.1/modules/highgui/src/cap_ffmpeg_impl.hpp:1485:5: warning: ‘int av_write_header(AVFormatContext*)’ is deprecated (declared at /usr/include/libavformat/avformat.h:1421) [-Wdeprecated-declarations]
  
  /tmp/OpenCV-2.3.1/modules/highgui/src/cap_ffmpeg_impl.hpp:1485:25: warning: ‘int av_write_header(AVFormatContext*)’ is deprecated (declared at /usr/include/libavformat/avformat.h:1421) [-Wdeprecated-declarations]
  
  make[2]: *** [modules/highgui/CMakeFiles/opencv_highgui.dir/src/cap_ffmpeg.o] Error 1
  
  make[1]: *** [modules/highgui/CMakeFiles/opencv_highgui.dir/all] Error 2
  
  make: *** [all] Error 2

  How do I resolve this error ?

• FFMPEG Video encoding error

  13 juin 2012, par user1290051

  I am trying to encode my video using ffmpeg. I have taken output of each frame as a separate image and then I'm joining them into a video using ffmpeg. I compiled ffmpeg from source.
  This is the command I used and the errors I keep running into !

  ---:/media/New Volume/temp$ ffmpeg -f image2 -i image%1d.png -vcodec libx264 \
  
  -preset ultrafast -crf 15 output.mp4
  
  ffmpeg version git-2012-03-24-2571506 Copyright (c) 2000-2012 the FFmpeg developers
  
    built on Mar 24 2012 03:47:02 with gcc 4.6.1
  
    configuration: --enable-gpl --enable-libfaac --enable-libmp3lame \
  
      --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora \
  
      --enable-libvorbis --enable-libx264 --enable-nonfree --enable-version3 \
  
      --enable-x11grab
  
    libavutil      51. 44.100 / 51. 44.100
  
    libavcodec     54. 12.100 / 54. 12.100
  
    libavformat    54.  2.100 / 54.  2.100
  
    libavdevice    53.  4.100 / 53.  4.100
  
    libavfilter     2. 65.102 /  2. 65.102
  
    libswscale      2.  1.100 /  2.  1.100
  
    libswresample   0.  7.100 /  0.  7.100
  
    libpostproc    52.  0.100 / 52.  0.100
  
  // ERORRS:: 
  
  [png @ 0xa4d5120] Missing png signature
  
  [image2 @ 0xa4ceb00] decoding for stream 0 failed
  
  [image2 @ 0xa4ceb00] Could not find codec parameters (Video: png)
  
  image%1d.png: could not find codec parameters