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Autres articles (58)

  • 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 (...)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

Sur d’autres sites (8778)

  • 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 :)

  • 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 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 ?

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