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Mot : - Tags -/MediaSPIP 0.2

Autres articles (63)

  • 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" (...)

  • Other interesting software

    13 avril 2011, par

    We don’t claim to be the only ones doing what we do ... and especially not to assert claims to be the best either ... What we do, we just try to do it well and getting better ...
    The following list represents softwares that tend to be more or less as MediaSPIP or that MediaSPIP tries more or less to do the same, whatever ...
    We don’t know them, we didn’t try them, but you can take a peek.
    Videopress
    Website : http://videopress.com/
    License : GNU/GPL v2
    Source code : (...)

Sur d’autres sites (6575)

  • using ffmpeg in C : system() or C api ?

    5 décembre 2018, par toastedDeli

    I want to use ffmpeg’s transcoding features multiple times in my program. This can be achieved by doing

    ffmpeg -i input output

    in a terminal. I believe I can use some shell or C code to execute these commands programmatically.

    I could also directly use ffmpeg’s c libraries to do this. My question is, will there be a noticeable performance difference between the 2 approaches ? Obviously the first will be simpler to implement, but will I pay a big performance cost ?

  • Compatibility of P-frames and multithreading in FFmpeg library in C

    16 mai 2023, par Rachel

    I am working on a video processing project using the FFmpeg library in C. I would like to inquire about the compatibility and support for utilizing P-frames (predictive frames) and multithreading simultaneously in FFmpeg. Currently, I am exploring two options for achieving multithreading with FFmpeg :

    


      

    1. Setting the i_threads parameter of FFmpeg to a value greater than 1.

      2. 


    2. My application opens multiple threads, where each thread creates a codec context
and performs parallel compression/decompression of frames from a shared FIFO.

      3. 


    


    I have tried option 1, but I did not observe any noticeable time difference compared to using only one thread. I am seeking an understanding of why this might be the case.

    


    I have tried option 2, which has resulted in improved compression/decompression times for the frames. However, I would like to understand why does it work. Since I am utilizing P-Frames, where each P-frame depends on the latest I-Frame, how can I ensure that the decompression of P-Frames starts after the I-Frame has finished processing when dealing with multiple codec contexts ?

    


    I have two proceccses one for encodeing and one for decoding.
I'd like to improve times using threads in both of them.

    


    The encoder process code :

    


    pt_handle->t_x264_param.i_threads = 24;

    


    pt_handle->pt_x264_encoder = x264_encoder_open(&pt_handle->t_x264_param);

    


    The decoder process code :

    


    pt_handle->pt_avcodec_ctx->thread_count = 23;

    


    pt_handle->pt_avcodec_ctx->thread_type = FF_THREAD_FRAME ;

    


    i_retval = avcodec_open2(pt_handle->pt_avcodec_ctx, pt_h264_decoder, NULL);

    


  • FFMPEG Using video in to add Watermark

    15 janvier 2021, par Lakhan

    I have tried the below code using my Command line.

    


    ffmpeg -i ed_hd.mp4 -i watermark.png -filter_complex "overlay=20:20" 1610690297-6555.mp4

    


    But didn't works this.

    


    And getting error like that.
The encoder 'aac' is experimental but experimental codecs are not enabled, add '-strict -2' if you want to use it.

    


    tried many times didn't get any success on it. if anyone can help on then I am thankful.

    


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