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    5 septembre 2013, par

    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;

  • Les tâches Cron régulières de la ferme

    1er décembre 2010, par

    La gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
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    27 avril 2010, par

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Sur d’autres sites (9509)

  • ffmpeg - rendering images and sound into video with transparent background

    22 septembre 2013, par Adam

    I got lots of images and a sound file.

    I want to convert all these images into a video (with the wav file as the sound of the movie).
    The images have a transparent background and I want the movie's background to be transparent too.

    How do I tell ffmpeg to render with a transparent background ?

    P.S - I keep getting the following error :

    Error while opening encoder for output stream #255:0 - maybe incorrect parameters such as bit_rate, rate, width or height

    Sincerely,

    Adam.

  • 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 How do I render a FLV from multiple PNG while saving the alpha channel ?

    13 août 2013, par Dan K

    I'm using FFMPEG, and when I'm rendering a FLV movie from multiple PNG files.
    I would like to preserve the png's alpha channel (transparency) in the output FLV file.

    If you could please help me out on this one, I would appreciate it.

    Thanks,
    Dan.

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