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  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

Sur d’autres sites (3254)

  • libx265 motion compensation and CU traverse

    17 juin 2016, par Ariana

    I’m trying to play with the H.265 motion compensation and search (HEVC- libx265 implementation from here : https://bitbucket.org/multicoreware/x265/downloads). I need to slightly extend the edge extension search, and fill the macro block with left-most pixels as if my sample videos are like cylinder (rightmost is connected to leftmost).

    What I need to do is basically this :

    enter image description here

    One way to do that is to modify the edge extension area (which is already in the code, in the frameFilter.cpp), and do that for rightmost and fill parts of blocks which are out with leftmost pixels. I identified the piece of code here which apparently is responsible for that. Can someone help me with implementing this feature ?

    if ((col == 0) | (col == m_frameFilter->m_numCols - 1))
    
    {
    
        // TODO: improve by process on Left or Right only
    
        primitives.extendRowBorder(reconPic->getLumaAddr(m_rowAddr), stride, reconPic->m_picWidth, realH, reconPic->m_lumaMarginX);
    

    
        if (m_frameFilter->m_param->internalCsp != X265_CSP_I400)
    
        {
    
            primitives.extendRowBorder(reconPic->getCbAddr(m_rowAddr), strideC, reconPic->m_picWidth >> hChromaShift, realH >> vChromaShift, reconPic->m_chromaMarginX);
    
            primitives.extendRowBorder(reconPic->getCrAddr(m_rowAddr), strideC, reconPic->m_picWidth >> hChromaShift, realH >> vChromaShift, reconPic->m_chromaMarginX);
    
        }
    
    }
    

    
    // Extra Left and Right border on first and last CU
    
    if ((col == 0) | (col == m_frameFilter->m_numCols - 1))
    
    {
    
        copySizeY += lumaMarginX;
    
        copySizeC += chromaMarginX;
    
    }
    

    
    // First column need extension left padding area and first CU
    
    if (col == 0)
    
    {
    
        pixY -= lumaMarginX;
    
        pixU -= chromaMarginX;
    
        pixV -= chromaMarginX;
    
    }

  • Audio File conversion format, bitrate- from wav to aac

    28 novembre 2019, par Teja8484

    I have an audio file with the following properties.

    File Name : A.wav

    Format : WAV

    Type : PCM 32 bit floating little endian

    Bitrate : 2048 kbps

    Frequency:32000 Khz

    Channels : 2

    I want to convert the above file to this format.

    Format : AAC

    Type : Advance audio encoding

    Bitrate : 384 kbps

    Frequency:32000 Khz

    Channels : 2

    I have been experimenting with ffmpeg but unsuccessful.

    ffmpeg -i A.wav -acodec aac -ab 384k B.aac

    How do I do this ?

  • avutil/tests/color_utils : reduce accuracy threshold to pass to 1e-7

    7 décembre 2024, par Hendrik Leppkes
    avutil/tests/color_utils : reduce accuracy threshold to pass to 1e-7

    Fixes FATE on a variety of configurations due to accuracy problems in
    
floating point math. Most constants tested against here are not even
    
specified with 7 decimal digits.
    

    Reviewed-by : Niklas Haas <git@haasn.dev>
    • [DH] libavutil/tests/color_utils.c

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