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  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

  • Submit enhancements and plugins

    13 avril 2011

    If you have developed a new extension to add one or more useful features to MediaSPIP, let us know and its integration into the core MedisSPIP functionality will be considered.
    You can use the development discussion list to request for help with creating a plugin. As MediaSPIP is based on SPIP - or you can use the SPIP discussion list SPIP-Zone.

Sur d’autres sites (4047)

  • How to load a video file(located in assets folder ) in NDK ?

    26 mars 2013, par user1059217

    I am executing ffmpeg by android ndk, I am able to run an sample, here [https://github.com/ccggaass/android-ffmpeg-sample].

    I want to put the video in android assets folder, so how to pass this file to the ffmpeg api :

    av_open_input_file(&pFormatCtx, "file :/sdcard/vid.3gp", NULL, 0, NULL) ;

    Does anyone know how to pass the file to av lib ?

  • Start/Stop Ffmpeg video capture

    2 novembre 2011, par Dasas

    I'm currently using ffmpeg for recording video from a webcam source.

    At the moment i use java to call for ffmpeg to execute.

    The code is pretty straightforward

    ffmpeg -f dshow -i video="Dualpix HD720p for Notebooks" -s cif -r 20 -f flv TEST.FLV
    
Runtime.getRuntime().exec("rundll32 SHELL32.DLL,ShellExec_RunDLL " + cmd);

    and it works fine.

    The only real issue occour when when i need to stop the recording process.

    I know that i can press q or even ctrl+c in the CMD but i need to stop the process without keyboard input.

    That would be pretty easy to achive by killing the process but in this case ffmpeg do not finalize the video leaving me with a corrupt, need to fix, output.

    Is there any way to trigger the finalizing process "remotely".

    Thx,
    D.

    *******EDIT**********

    Thx for the prompt answer, i think you're referring to

    Process.getOutputStream()

    As for this case i have tried with this code :

    public Process doCommand(String cmd) throws Exception {
    

    
    rt = Runtime.getRuntime();
    
    Process proc = rt.exec(cmd);
    
    recOS= proc.getOutputStream();
    
    regcIS= proc.getInputStream();
    

    
    return proc;
    

    
}
    

    
   receOS.write(("q/n".getBytes()));
    
   recOS.flush();

    I'm still getting an error, to be more specific, java.io.ioexception The pipe is being closed ...

  • FFMPEG - Scale video filter not providing expected results

    11 novembre 2011, par dpassera

    Apologies if this question has been asked. I couldn't find it, but if it has, please let me know and I'll close this out.

    I'm attempting a simple scale of a video whose original dimensions are 480x360 and whose target dimensions are 400x300. The video starts as an FLV and eventually needs to end up as an MPEG. I'm using the following command line to do this :

    ffmpeg -i user.flv -vf "scale=400:300" user_scaled.mpg

    When I play the scaled video in MPEG Streamclip, the scale is correct and the video info shows that the dimensions are 400x300. However, when I play the scaled video in Quicktime, the video is scaled to 478x359. More importantly, FFMPEG, itself, treats the video as being 478x359, so any future commands (trimming, conversion, overlaying, etc) executed on it result in a video of 478x359.

    The initial workflow required an FLV to MPEG conversion, but I've tried this with several different in and out formats (FLV -> FLV, FLV -> MPEG, MPEG -> MPEG, etc) all with the same results. As long as I can end up with an MPEG, though, I can deal with however many steps and conversions it would take to get this scaling working.

    I'll paste the command-line output below, and a sample input video is also linked below, if you'd like it. Thank you very much for any help.

    http://www.monkeydriver.com/dpassera/stack_flv.zip

    Command-line output :

    ffmpeg -i user.flv -vf "scale=400:300" user_scaled.mpg
    

    
ffmpeg version 0.7-rc1, Copyright (c) 2000-2011 the FFmpeg developers
    
  built on May 21 2011 22:13:19 with gcc 4.1.2 20080704 (Red Hat 4.1.2-50)
    
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 
    
 --mandir=/usr/share/man --incdir=/usr/include --disable-avisynth
    
 --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions
    
 -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC'
    
 --enable-avfilter --enable-libdirac --enable-libgsm --enable-libmp3lame
    
 --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264
    
 --enable-gpl --enable-postproc --enable-pthreads --enable-shared
    
 --enable-swscale --enable-vdpau --enable-version3 --enable-x11grab
    
 --disable-yasm --enable-filters --enable-filter=movie
    

    
  libavutil    50. 40. 1 / 50. 40. 1
    
  libavcodec   52.120. 0 / 52.120. 0
    
  libavformat  52.108. 0 / 52.108. 0
    
  libavdevice  52.  4. 0 / 52.  4. 0
    
  libavfilter   1. 77. 0 /  1. 77. 0
    
  libswscale    0. 13. 0 /  0. 13. 0
    
  libpostproc  51.  2. 0 / 51.  2. 0
    

    
[flv @ 0x11dd3b30] Estimating duration from bitrate, this may be inaccurate
    
Input #0, flv, from 'user.flv':
    

    
  Metadata:
    
    duration        : 5
    
    videocodecid    : 2
    
    audiocodecid    : 6
    
    canSeekToEnd    : true
    
    createdby       : FMS 4.0
    
    creationdate    : Mon Oct 31 11:43:44 2011
    

    
  Duration: 00:00:04.62, start: 0.000000, bitrate: N/A
    
    Stream #0.0: Video: flv, yuv420p, 640x480, 1k tbr, 1k tbn, 1k tbc
    
    Stream #0.1: Audio: nellymoser, 44100 Hz, mono, s16
    

    
[buffer @ 0x11ddc950] w:640 h:480 pixfmt:yuv420p
    

    
[scale @ 0x11dda610] w:640 h:480 fmt:yuv420p -> w:400 h:300 fmt:yuv420p flags:0xa0000004
    

    
[mpeg @ 0x11dd6bd0] VBV buffer size not set, muxing may fail
    

    
Output #0, mpeg, to 'user_scaled.mpg':
    
  Metadata:
    
    duration        : 5
    
    videocodecid    : 2
    
    audiocodecid    : 6
    
    canSeekToEnd    : true
    
    createdby       : FMS 4.0
    
    creationdate    : Mon Oct 31 11:43:44 2011
    
    encoder         : Lavf52.108.0
    

    
    Stream #0.0: Video: mpeg1video, yuv420p, 400x300, q=2-31, 200 kb/s, 90k tbn, 60 tbc
    

    
    Stream #0.1: Audio: mp2, 44100 Hz, mono, s16, 64 kb/s
    

    
Stream mapping:
    
Stream #0.0 -> #0.0
    
Stream #0.1 -> #0.1
    

    
Press [q] to stop encoding
    
frame=  230 fps=  0 q=10.2 size=     366kB time=3.82 bitrate= 785.6kbits/s dup=175 drop=0 
    
frame=  267 fps=  0 q=10.7 Lsize=     412kB time=4.43 bitrate= 761.3kbits/s dup=203 drop=0    
    

    
video:370kB audio:36kB global headers:0kB muxing overhead 1.568959%

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