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Autres articles (44)

  • Utilisation et configuration du script

    19 janvier 2011, par

    Informations spécifiques à la distribution Debian
    Si vous utilisez cette distribution, vous devrez activer les dépôts "debian-multimedia" comme expliqué ici :
    Depuis la version 0.3.1 du script, le dépôt peut être automatiquement activé à la suite d’une question.
    Récupération du script
    Le script d’installation peut être récupéré de deux manières différentes.
    Via svn en utilisant la commande pour récupérer le code source à jour :
    svn co (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

Sur d’autres sites (5192)

  • how to add a text stream (subtitle) into a .mp4 or .m4v

    12 janvier 2013, par jAckOdE

    I use ffmpeg to convert video using H264 for video encoding, and FAAC for audio encoding. The output should be .mp4 or m4v in order to play on both Android and iPhone. I want to add a subtitle STREAM to video file using ffmpeg, but the ffmpeg's documentation doesnt help much.

    Can anyone help me with this ?

  • ffmpeg ios, decoding rtsp stream causes memory leak

    5 août 2013, par Simone M

    i have an ios application that stream a rtsp video via network using ffmpeg library.
    In random time i have a crash without error message, the only message in console is "Memory warning".
    Using instrument i detect some memory leaks, this link a screenshot about error : http://vincentvega.it/iphone/video.png, i think the problem is in the point of code where i make uiimage to show on screen :

    - (void)convertFrameToRGB
    
{
    
    sws_scale(img_convert_ctx,
    
              pFrame->data,
    
              pFrame->linesize,
    
              0,
    
              pCodecCtx->height,
    
              picture.data,
    
              picture.linesize);
    

    
}
    

    
- (UIImage *)imageFromAVPicture:(AVPicture)pict width:(int)width height:(int)height
    
{
    
    CGBitmapInfo bitmapInfo = kCGBitmapByteOrderDefault;
    
    CFDataRef data = CFDataCreateWithBytesNoCopy(kCFAllocatorDefault, pict.data[0], pict.linesize[0]*height,kCFAllocatorNull);
    
    CGDataProviderRef provider = CGDataProviderCreateWithCFData(data);
    
    CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
    
    CGImageRef cgImage = CGImageCreate(width, 
    
                                       height, 
    
                                       8, 
    
                                       24, 
    
                                       pict.linesize[0], 
    
                                       colorSpace, 
    
                                       bitmapInfo, 
    
                                       provider, 
    
                                       NULL, 
    
                                       NO, 
    
                                       kCGRenderingIntentDefault);
    
    CGColorSpaceRelease(colorSpace);
    
    UIImage *image = [[UIImage alloc] initWithCGImage:cgImage];
    

    

    

    
    return [image autorelease];
    
}

    how can i detect the function that causes memory problem ?

    SOLVED ! I just neeed to add the following code in "imagefromavcapture" :

    CGImageRelease(cgImage);
    
    CGDataProviderRelease(provider);
    
    CFRelease(data);

  • how to fix the delay when play a ts stream via udp

    4 juin 2013, par user2223169

    I want to play udp ts stream on iPhone using ffmepg, but the video delayed almost 1s, so my question is how to fix the delay, currently I think I can specify the fifo_size, just like udp ://@:1234 ?fifo_size=1024, but the player can't play with this configuration, anybody knows how to reduce the buffer size to reduce the delay ?
    Thanks :)

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