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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 (...)

  • 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 (...)

  • Le plugin : Podcasts.

    14 juillet 2010, par

    Le problème du podcasting est à nouveau un problème révélateur de la normalisation des transports de données sur Internet.
    Deux formats intéressants existent : Celui développé par Apple, très axé sur l’utilisation d’iTunes dont la SPEC est ici ; Le format "Media RSS Module" qui est plus "libre" notamment soutenu par Yahoo et le logiciel Miro ;
    Types de fichiers supportés dans les flux
    Le format d’Apple n’autorise que les formats suivants dans ses flux : .mp3 audio/mpeg .m4a audio/x-m4a .mp4 (...)

Sur d’autres sites (2514)

  • php exec statement and single and double quotes confusion

    4 octobre 2015, par Anay Bose

    I am trying to overlay a png on the middle of a video. I am using ffmpeg. My syntax works well when I hardcode the image location (i.e. frames/watermark.png). But, I need to use a variable $dst to indicate the folder that contains the png image. The other variable i.e. $output_file fits well. I have tried various configurations, but cannot make it work. Maybe, your experienced eyes would readily detect the problems with single and double quotes.

    $dst = 'frames';
    
$output_file = $dst . "/cut.mp4";
    

    
$command = 'ffmpeg -i ' .$output_file. '  -vf "movie=' . $dst . '/watermark.png [watermark]; [in][watermark] overlay=(main_w-overlay_w)/2: (main_h-overlay_h)/2 [out]" ' .$dst. '/part4.mp4';
    
exec($command, $return, $array);
    
var_dump($array);

  • lavc/libaribb24 : add error handling to region handling

    11 février 2019, par Jan Ekström
    lavc/libaribb24 : add error handling to region handling

    Fixes some rather embarrassing mistakes that somehow passed my
    
eyes.
    

    * Now catches if memory allocation has failed during bprint usage
    
  by checking av_bprint_is_complete().
    
* Now catches if adding an ASS rectangle into an AVSubtitle failed.
    
* Returns AVERROR_INVALIDDATA if we get an invalid region buffer
    
  length.
    • [DH] libavcodec/libaribb24.c

  • FFmpeg av_read_frame not reading frames properly ?

    2 août 2016, par Sir DrinksCoffeeALot

    Alright, so I’ve downloaded some raw UHD sequences in .yuv format and encoded them with ffmpeg in .mp4 container (h264 4:4:4, 100% quality, 25fps). When i use ffprobe to find out how many frames are encoded i get 600, so that’s 24 secs of video.

    BUT, when i run those encoded video sequences through av_read_frame i only get like 40-50% of frames processed before av_read_frame returns error code -12. So I’m wild guessing that there are some data packages in middle of the streams which get read by av_read_frame and forces a function to return -12.

    What my questions are, how should i deal with this problem so i can encode full number of frames (600) ? When av_read_frame returns value different from 0 should i av_free_packet and proceed to read next frame ? Since av_read_frame returns values < 0 for error codes, which error code is used for EOF so i can insulate end of file code ?

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