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  • 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 (...)

  • (Dés)Activation de fonctionnalités (plugins)

    18 février 2011, par

    Pour gérer l’ajout et la suppression de fonctionnalités supplémentaires (ou plugins), MediaSPIP utilise à partir de la version 0.2 SVP.
    SVP permet l’activation facile de plugins depuis l’espace de configuration de MediaSPIP.
    Pour y accéder, il suffit de se rendre dans l’espace de configuration puis de se rendre sur la page "Gestion des plugins".
    MediaSPIP est fourni par défaut avec l’ensemble des plugins dits "compatibles", ils ont été testés et intégrés afin de fonctionner parfaitement avec chaque (...)

  • 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 (6040)

  • php ming flash swf slideshow to mp4/avi

    19 août 2013, par Stefan

    After hours of searching and trying i finally got a nice script together that generates a good looking Flash .swf file with a nice transaction in between de images.
    It works great if you access the swf file directly in a browser, depending on the amount of images the flash created takes anywhere between 10 and 60 seconds.
    But when uploading to Youtube the movie created flashed by in one second.
    Because swf isnt really a accepted fileformat for Youtube we decided to convert the flash file to mp4 or avi using ffmpeg.
    Unfortunally that didnt work, it had the same effect as the youtube movie.
    We had a old version of ffmpeg and updated that to a recent version and tried to convert again with the same result.
    The main thing i see is that ffmpeg cant see the swf file duration and bitrate, they are both 'N/A' while were do set them in the php script.
    I thought it looked like the Metadata doesnt get written and i cant find anything on that regarding Ming.
    But i downloaded a phpclass that extracts the metadata from the swf and that tells me the framerate etc is getting set.

    Now i have to admit i havent really tested with the new version because the commandline options are a little different but ill work on that after i post this.
    In the previous version we tried setting the framerate of the source swf file, but that didnt work either.

    Anyone here that can has a idea ? it would be greatly appriciated.

    PHP Ming Script :

          $fps = 30;
    
         foreach($objects as $objectId => $images){
    
                // START FLASH MOVIE
    
                $m = new SWFMovie();
    
                $m->setDimension($width, $height);
    
                $m->setBackground(0, 0, 0);
    
                $m->setRate($fps);
    
                $m->setFrames(count($images)*202); //count(images)* 2 breaks *($fps*$breakTime)+22(fadeOut))
    

    
                $i = 0;
    
                foreach($images as $image){
    

    
                    // REMOVE THE BACKGROUND IMAGE
    
                    if($behind){
    
                        $m->remove($behind);
    
                    }
    
                    // # REMOVE
    

    
                    // LOAD NEW IMAGE
    
                    $img = new SWFBitmap(fopen($image,"rb"));
    
                    $pic = $m->add($img);
    
                    $pic->setdepth(3);
    
                    // # LOAD
    

    
                    // BREAK TIME
    
                    for($j=1;$j<=($fps*$breakTime);$j++){
    
                        $m->nextFrame();
    
                    }
    
                    $m->remove($pic);
    
                    // # BREAK
    

    
                    // LOAD THE NEXT IMAGE AS BACKGROUND, IF LAST IMAGE, LOAD FIRST
    
                    $nextBackgrondImage =($images[$i+1]) ? $images[$i+1] : $images[0] ;
    
                    $img = new SWFBitmap(fopen($nextBackgrondImage,"rb"));
    
                    $behind = $m->add($img);
    
                    $behind->setdepth(2);
    
                    // # LOAD
    

    
                    // AND FADE OUT AGAIN
    
                    $img = fadeOut($image, $width, $height);
    
                    $pic = $m->add($img);
    
                    $pic->setdepth(3);
    
                    // # FADE OUT
    

    
                    // BREAK TIME
    
                    for($j=1;$j<=($fps*$breakTime);$j++){
    
                        $m->nextFrame();
    
                    }
    
                    $m->remove($pic);
    
                    # BREAK
    
                    $i++;
    
                }       
    
                $m->save('./flash/'.$nvmId.'_'.$objectId.'.swf');   
    
            unset($m); 
    
            }
    
}

    FFMPEG version :

    root@server:~# ffmpeg -version
    
\FFmpeg version SVN-r26402, Copyright (c) 2000-2011 the FFmpeg developers
    
  built on Aug 15 2013 20:43:21 with gcc 4.4.5
    
  configuration: --enable-libmp3lame --enable-libtheora --enable-libx264 
    
  --enable-libgsm --enable-postproc --enable-libxvid --enable-libfaac --enable-pthreads 
    
  --enable-libvorbis --enable-gpl --enable-x11grab --enable-nonfree
    
  libavutil     50.36. 0 / 50.36. 0
    
  libavcore      0.16. 1 /  0.16. 1
    
  libavcodec    52.108. 0 / 52.108. 0
    
  libavformat   52.93. 0 / 52.93. 0
    
  libavdevice   52. 2. 3 / 52. 2. 3
    
  libavfilter    1.74. 0 /  1.74. 0
    
  libswscale     0.12. 0 /  0.12. 0
    
  libpostproc   51. 2. 0 / 51. 2. 0
    
FFmpeg SVN-r26402
    
libavutil     50.36. 0 / 50.36. 0
    
libavcore      0.16. 1 /  0.16. 1
    
libavcodec    52.108. 0 / 52.108. 0
    
libavformat   52.93. 0 / 52.93. 0
    
libavdevice   52. 2. 3 / 52. 2. 3
    
libavfilter    1.74. 0 /  1.74. 0
    
libswscale     0.12. 0 /  0.12. 0
    
libpostproc   51. 2. 0 / 51. 2. 0

    FFMPEG command

    root@server:~# ffmpeg -r 30 -i /pathTo/flash/73003_8962011.swf -r 30 -ar 22050 -b 2048k /pathTo/flash/output.avi
    
FFmpeg version SVN-r26402, Copyright (c) 2000-2011 the FFmpeg developers
    
  built on Aug 15 2013 20:43:21 with gcc 4.4.5
    
  configuration: --enable-libmp3lame --enable-libtheora --enable-libx264 --enable-libgsm --enable-postproc --enable-libxvid
    
  --enable-libfaac --enable-pthreads --enable-libvorbis --enable-gpl --enable-x11grab --enable-nonfree
    
  libavutil     50.36. 0 / 50.36. 0
    
  libavcore      0.16. 1 /  0.16. 1
    
  libavcodec    52.108. 0 / 52.108. 0
    
  libavformat   52.93. 0 / 52.93. 0
    
  libavdevice   52. 2. 3 / 52. 2. 3
    
  libavfilter    1.74. 0 /  1.74. 0
    
  libswscale     0.12. 0 /  0.12. 0
    
  libpostproc   51. 2. 0 / 51. 2. 0
    
[swf @ 0x1ca1510] Estimating duration from bitrate, this may be inaccurate
    
Input #0, swf, from '/pathTo/flash/73003_8962011.swf':
    
  Duration: N/A, bitrate: N/A
    
    Stream #0.0: Video: mjpeg, yuvj420p, 360x480, 30 fps, 30 tbr, 30 tbn, 30 tbc
    
File '/pathTo/output.avi' already exists. Overwrite ? [y/N] y
    
[buffer @ 0x1cb42d0] w:360 h:480 pixfmt:yuvj420p
    
[ffsink @ 0x1cb4570] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
    
[scale @ 0x1cb4870] w:360 h:480 fmt:yuvj420p -> w:360 h:480 fmt:yuv420p flags:0xa0000004
    
Output #0, avi, to '/pathTo/flash/output.avi':
    
  Metadata:
    
    ISFT            : Lavf52.93.0
    
    Stream #0.0: Video: mpeg4, yuv420p, 360x480, q=2-31, 2048 kb/s, 30 tbn, 30 tbc
    
Stream mapping:
    
  Stream #0.0 -> #0.0
    
Press [q] to stop encoding
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
Input Stream #0.0 frame size changed to 640x480, yuvj420p
    
frame=   39 fps=  0 q=17.5 Lsize=     524kB time=1.30 bitrate=3304.9kbits/s
    
video:518kB audio:0kB global headers:0kB muxing overhead 1.250735%

    Metadata :

    DEBUG: Data values initialized
    
DEBUG: Opened ./flash/98701_8965910.swf
    
DEBUG: Read MAGIC signature: FWS
    
DEBUG: Read VERSION: 9
    
DEBUG: Partial SIZE read: 225
    
DEBUG: Partial SIZE read: 28928
    
DEBUG: Partial SIZE read: 1441792
    
DEBUG: Partial SIZE read: 0
    
DEBUG: Total SIZE: 1470945
    
DEBUG: RECT field size: 15 bits
    
DEBUG: RECT binary value: 000000000000000 (0)
    
DEBUG: RECT binary value: 011001000000000 (640)
    
DEBUG: RECT binary value: 000000000000000 (0)
    
DEBUG: RECT binary value: 010010110000000 (480)
    
DEBUG: Frame rate: 30.0
    
DEBUG: Frames: 2222
    
DEBUG: Finished processing ./flash/98701_8965910.swf
    
FILE: ./flash/98701_8965910.swf
    
MAGIC: FWS
    
VERSION: 9
    
SIZE: 1470945 bytes
    
WIDHT: 640
    
HEIGHT: 480
    
FPS: 30.0 Frames/s
    
FRAMES: 2222 FRAME

  • ffmpeg c/c++ get frame count or timestamp and fps

    23 juin 2016, par broschb

    I am using ffmpeg to decode a video file in C. I am struggling to get either the count of the current frame I am decoding or the timestamp of the frame. I have read numerous posts that show how to calculate an estimated frame no based on the fps and frame timestamp, however I am not able to get either of those.

    What I need : fps of video file, timestamp of current frame or frame no(not calculated)

    What I have : I am able to get the time of the video using

    pFormatCtx->duration/AV_TIME_BASE

    I am counting the frames currently as I process them, and getting a current frame count, this is not going to work longterm though. I can get the total frame count for the file using

    pFormatCtx->streams[currentStream->videoStream]->nb_frames

    I have read this may not work for all streams, although it has worked for every stream I have tried.

    I have tried using the time_base.num and time_base.den values and packet.pts, but I can’t make any sense of the values that I am getting from those, so I may just need to understand better what those values are.

    Does anyone know of resources that show examples on how to get this values ?

  • Find video resolution and video duration of remote mediafile

    22 février 2012, par osgx

    I want to write an program which can find some metainformation of mediafile. I'm interested in popular video formats, such as avi, mkv, mp4, mov (may be other popular too). I want basically to get :

    • Video size (720, 1080, 360 etc)
    • Total runtime of video (may be not very exact)
    • Number of audio streams
    • Name of video codec
    • Name of audio codec

    There is already the mediainfo, but in my program I want to get information about remote file, which may be accessed via ftp, http, samba ; or even torrent (there are some torrent solutions, which allows to read not-yet downloaded file).

    MediaInfo library have no support of samba (smb ://) and mkv format (for runtime).

    Also, I want to know, how much data should be downloaded to get this information. I want not to download full videofile because I have no enough disk space.

    Is this information in the first 1 or 10 or 100 KiloBytes of the file ? Is it at predictable offset if I know the container name and total file size ?

    PS : Platform is Linux, Language is C/C++

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