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Autres articles (101)

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

Sur d’autres sites (16547)

  • ffmpeg : merge avi and wav files into flv not working

    1er juillet 2014, par gautam.das

    I’m trying to merge an .avi and .wav file to .flv using ffmpeg-php.

    Here is my code :

    exec("ffmpeg -i $audio_path -i $video_path -vcodec flv -acodec copy
    
                                             $target_path", $op, $result);

    But the output file is of 0 bytes and it gives :

    "Could not write header for output file #0 (incorrect codec parameters ?): 
    
    Invalid data found when processing input"

    When I use -vcodec as copy, it merges sucessfully.

    Thanks in advance.

  • Quantization property in CUVID

    19 octobre 2016, par mkreddy

    Please correct me if my understanding was wrong regarding qscale in ffmpeg.

    In ffmpeg H264 decoder has qscale_table which hold the values of qp for each macro block.

    Is there any such table/matrix in CUVID to know the qscale values ? If not, please suggest me how can I construct one such matrix for each macro block.

    Thanks in advance.

  • Superimpose audio track on plot animation

    17 février 2023, par Antoine101

    I plot a matrix in a standard matplotlib figure with imshow. Each matrix is the result of a signal processing calculation on a time signal snapshot (0.2s). I plot each snapshot one after the other (the signal is several seconds long) in a loop and record the animation with FFMPegWriter, setting the FPS so that it matches real time. The output is an MP4 file.

    


    Now, I'd like to add a soundtrack on top of it, of the time signal that was used to calculate the matrices.

    


    How would you do that ? I scrolled a lot but didn't find any suitable solution.
Any idea of libraries or packages ?

    


    Many thanks in advance.

    


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