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Autres articles (59)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Participer à sa traduction

    10 avril 2011

    Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
    Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
    Actuellement MediaSPIP n’est disponible qu’en français et (...)

  • 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" (...)

Sur d’autres sites (9504)

  • what is a good way to calculate frame rate using of a video ffmpeg ?

    20 septembre 2013, par user1914692

    I find three possible ways :

    (Option 1)
    inVStruct.inVideoStream->r_frame_rate

    [comment :] correct for some videos. Not always correct.
    it is libavformats guess, not exact. (see http://ffmpeg.org/pipermail/ffmpeg-devel/2005-May/003079.html )

    (Option 2)
    (double) inVStruct.inVideoStream->r_frame_rate.num / (double) inVStruct.inVideoStream->r_frame_rate.den

    [comment :] correct for some videos. Not always correct.

    (Option 3)
    (double) inVStruct.inCodecContext->time_base.den / (double) inVStruct.inCodecContext->time_base.num / inVStruct.inCodecContext->ticks_per_frame) ;

    [comment :] correct for some videos. Not always correct.

    Please recommend one for all video files.

  • "error C2400 : inline assembler syntax error in ‘opcode’" pxor compiling ffmpeg with mmx flag enabled

    4 octobre 2013, par Kristofer

    I'm trying to compile (visual studio 2005) ffmpeg with mmx flag enabled (HAVE_MMX) but get the following error :
    "error C2400 : inline assembler syntax error in ‘opcode’"
    And it's complaining about xpor_r2r

    Ideas ?

    [Update]
    Jester pointed out that it's probably a problem with the macro :

    #define         mmx_r2r(op,regs,regd) \
           __asm__ volatile (#op " %" #regs ", %" #regd)

    Directly using :
    __asm__ pxor mm7 mm7 works
    Adding volatile (as in the macro mentioned) gives the same error, syntax error as before in 'opcode' found 'data_type'.

    Just removing volatile from the macro does not work, instead gives error in 'opcode' found '('

    Removing the paranthesis instead gives error in 'opcode' found 'bad_token'

  • How to merge 2 mp4 files with 1 atom ?

    2 octobre 2013, par user2783132

    I'm merging two mp4 files for video streaming. the problem is, the merged file contains two atoms, 1 atom from each file and that is a problem when it comes to streaming. the client needs to wait until the first atom loads from file1, than when it's time to play second part from file2 client will wait again for the atom to be loaded. when your atom is small you may not notice this, but when you stream a large video, atom could weight 7-10mb.

    How can I remove those two atoms from merged file and create a new one ?

    what i've tried :

    ffmpeg -i file1.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate1.ts
    
ffmpeg -i file2.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate2.ts
    
ffmpeg -i "concat:intermediate1.ts|intermediate2.ts" -c copy -bsf:a aac_adtstoasc m.file.mp4
    

    
MP4Box -add m.file.mp4 -isma mf.file.mp4
    
mv mf.file.mp4 m.file.mp4

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