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Sur d’autres sites (6581)

  • Video Streaming from an ip camera h264

    4 décembre 2012, par user1764164

    I wish to develop an application for android which can receive video frames and display them in h264 encoded format. I was able to find solutions using mjpeg but i wish to use javacv which contains ffmpeg . Javacv also allows me to add motion detection and color enhancement algorithms to my frames. Please point me to references and solutions which would enable me to further the development of my application

  • broken ffmpeg default settings detected

    8 août 2016, par Ramakrishna

    I am getting broken ffmpeg error while VideoWrite using X264 Fourcc codec.I have install all the dependencies.How can I rectify this problem.The sample code that I have been using is as follows.

    VideoWriter oVideoWriter ("path.mp4", CV_FOURCC('X','2','6','4'), 15, frameSize, false);

    Operating system : Ubuntu 14.04 64-bit

    Console Error :

    [libx264 @ 0x8d6220] broken ffmpeg default settings detected
    
[libx264 @ 0x8d6220] use an encoding preset (e.g. -vpre medium)
    
[libx264 @ 0x8d6220] preset usage: -vpre <speed> -vpre <profile>
    
[libx264 @ 0x8d6220] speed presets are listed in x264 --help
    
[libx264 @ 0x8d6220] profile is optional; x264 defaults to high
    
Could not open codec 'libx264': Unspecified errorOpenCV Error: Unsupported format or combination of formats (Your version of Gstreamer doesn't support this codec acutally or needed plugin missing.) in CvVideoWriter_GStreamer::open, file /home/mbox140/Development/opencv-2.4.9/modules/highgui/src/cap_gstreamer.cpp, line 518
    
terminate called after throwing an instance of 'cv::Exception'
    
  what():  /home/mbox140/Development/opencv-2.4.9/modules/highgui/src/cap_gstreamer.cpp:518: error: (-210) Your version of Gstreamer doesn't support this codec acutally or needed plugin missing. in function CvVideoWriter_GStreamer::open
    
</profile></speed>

    Suggest me any solution for this.

  • broken ffmpeg default settings detected

    8 août 2016, par Ramakrishna

    I am getting broken ffmpeg error while VideoWrite using X264 Fourcc codec.I have install all the dependencies.How can I rectify this problem.The sample code that I have been using is as follows.

    VideoWriter oVideoWriter ("path.mp4", CV_FOURCC('X','2','6','4'), 15, frameSize, false);

    Operating system : Ubuntu 14.04 64-bit

    Console Error :

    [libx264 @ 0x8d6220] broken ffmpeg default settings detected
    
[libx264 @ 0x8d6220] use an encoding preset (e.g. -vpre medium)
    
[libx264 @ 0x8d6220] preset usage: -vpre <speed> -vpre <profile>
    
[libx264 @ 0x8d6220] speed presets are listed in x264 --help
    
[libx264 @ 0x8d6220] profile is optional; x264 defaults to high
    
Could not open codec 'libx264': Unspecified errorOpenCV Error: Unsupported format or combination of formats (Your version of Gstreamer doesn't support this codec acutally or needed plugin missing.) in CvVideoWriter_GStreamer::open, file /home/mbox140/Development/opencv-2.4.9/modules/highgui/src/cap_gstreamer.cpp, line 518
    
terminate called after throwing an instance of 'cv::Exception'
    
  what():  /home/mbox140/Development/opencv-2.4.9/modules/highgui/src/cap_gstreamer.cpp:518: error: (-210) Your version of Gstreamer doesn't support this codec acutally or needed plugin missing. in function CvVideoWriter_GStreamer::open
    
</profile></speed>

    Suggest me any solution for this.

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