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Autres articles (89)

  • 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" (...)

  • Le profil des utilisateurs

    12 avril 2011, par

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

Sur d’autres sites (14290)

  • how to generate video thumbnail in node.js and save it as a buffer ?

    4 septembre 2021, par Jourdelune

    I want to get the thumbnails of a video at half of it but I should not save the image in a file but get the buffer. I tested ffmepg
ffmpeg -ss 146 -i video.mp4 -y -an -t 4 source
but it does not propose to recover the buffer. Do you know a solution ?

    


  • save ffmpeg AVFrame as dds file

    16 septembre 2017, par HamedBB

    Currently I can capture each frame of the video and save them as .bmp file on disk using following function (copied from an example) :

    bool BMPSave ( const char *pFileName, AVFrame * frame, int w, int h ) {
    
    bool bResult = false;
    

    

    
    if ( frame ) {
    
        FILE* file = fopen ( pFileName, "wb" );
    

    
        if ( file ) {
    
            // RGB image
    
            int imageSizeInBytes = 3 * w * h;
    
            int headersSize = sizeof( BITMAPFILEHEADER ) +sizeof( BITMAPINFOHEADER );
    
            int fileSize = headersSize + imageSizeInBytes;
    

    
            uint8_t * pData = new uint8_t[headersSize];
    

    
            if ( pData != NULL ) {
    
                BITMAPFILEHEADER& bfHeader = *( ( BITMAPFILEHEADER * ) ( pData ) );
    

    
                bfHeader.bfType = 'MB';
    
                bfHeader.bfSize = fileSize;
    
                bfHeader.bfOffBits = headersSize;
    
                bfHeader.bfReserved1 = bfHeader.bfReserved2 = 0;
    

    
                BITMAPINFOHEADER& bmiHeader = *( ( BITMAPINFOHEADER * ) ( pData + headersSize - sizeof( BITMAPINFOHEADER ) ) );
    

    
                bmiHeader.biBitCount = 3 * 8;
    
                bmiHeader.biWidth = w;
    
                bmiHeader.biHeight = h;
    
                bmiHeader.biPlanes = 1;
    
                bmiHeader.biSize = sizeof( bmiHeader );
    
                bmiHeader.biCompression = BI_RGB;
    
                bmiHeader.biClrImportant = bmiHeader.biClrUsed =
    
                    bmiHeader.biSizeImage = bmiHeader.biXPelsPerMeter =
    
                    bmiHeader.biYPelsPerMeter = 0;
    

    
                fwrite ( pData, headersSize, 1, file );
    

    
                uint8_t *pBits = frame->data[0] + frame->linesize[0] * h - frame->linesize[0];
    
                int nSpan = -frame->linesize[0];
    

    
                int numberOfBytesToWrite = 3 * w;
    

    
                for ( size_t i = 0; i < h; ++i, pBits += nSpan ) {
    
                    fwrite ( pBits, numberOfBytesToWrite, 1, file );
    
                }
    

    
                bResult = true;
    
                delete[] pData;
    
            }
    

    
            fclose ( file );
    
        }
    
    }
    

    
    return bResult;
    
}

    However I want to encode each of frame to dds format then use them with D3DX11CreateShaderResourceViewFromFile in direct3D but I can’t figure out how to convert my raw data to dds format.

  • How to save an audiostream with ffmpeg

    13 juillet 2020, par Nico Eymael

    I want to save an audiostream from beatport.com with ffmpeg.

    


      

    1. The audiostream is : https://www.beatport.com/track/maximal-happiness/13855065

      2. 


    2. Outputfile : audiotrack1.aac

      3. 


    3. I know that the music is streamed in aac format. I want my output file to be also aac. I've looked up in which format it is being streamed.

      4. 


    


    So in cmd I write :

    


    ffmpeg -i https://www.beatport.com/track/maximal-happiness/13855065.aac -vn -c:a copy audiotrack1.aac

    


    My cmd answers me :

    


    https://www.beatport.com/track/maximal-happiness/13855065: Invalid data found when processing input

    


    example1

    


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