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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 (...)

  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 is the first MediaSPIP stable release.
    Its official release date is June 21, 2013 and is announced here.
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • Des sites réalisés avec MediaSPIP

    2 mai 2011, par

    Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
    Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.

Sur d’autres sites (6819)

  • Lossless conversion from XVID to iPad-compatible mp4 container [closed]

    3 juin 2013, par forthrin

    Is it possible to do a lossless (ie. without re-encoding) conversion from XVID ("Advanced Simple Profile") to an mp4 container which plays smoothly on an iPad ?

    Current attempts give a lot of "jumping" in the video stream ?

    ffmpeg -i in.avi -fflags +genpts -strict -2 -an -vcodec copy out.mp4

  • FFMPEG converted file for jwplayer shows black [migrated]

    24 octobre 2013, par Karolis Narkevičius

    im new to ffmpeg, and I'm trying to convert it to mp4 to play on jwplayer, the video converts, the sound is good, but all i can see is black color, maybie anyone knows the answer to this problem ?

    ffmpeg -y -i Bear.wmv -vcodec libx264 -b:v 1000k -bufsize 1000k -preset:v ultrafast -movflags +faststart -crf 0 -vf scale=800:400 -ab 128k -vsync 2 -strict -2 outas.mp4

    my ffmpeg code
    my ffmpeg version 2.0.1

  • ffmpeg conversion command to output to h.264 for iPad

    23 juin 2016, par janet-PCF

    I’m looking for a good (general) conversion command that will convert any input file to h.264 sized for the iPad.

    Currently I have this command that works, that was adapted from robert.swain

    With presets :

    $ ffmpeg -i INPUT -acodec aac -ab 160000 -s 1024x768 -vcodec libx264 \
    
         -vpre slow -vpre ipod640 -b 1200kb -threads 0 -f mp4 OUTPUT.mp4

    Long form, no presets :

    $ ffmpeg -i INPUT -acodec aac -ab 160000 -s 1024x768 -vcodec libx264 \
    
         -coder 1 -flags +loop -cmp +chroma \
    
         -partitions +parti8x8+parti4x4+partp8x8+partb8x8 -me_method umh \
    
         -subq 8 -me_range 16 -g 250 -keyint_min 25 -sc_threshold 40 \
    
         -i_qfactor 0.71 -b_strategy 2 -qcomp 0.6 -qmin 10 -qmax 51 -qdiff 4 \
    
         -bf 3 -refs 5 -directpred 3 -trellis 1 \
    
         -flags2 +bpyramid+mixed_refs+wpred+dct8x8+fastpskip -wpredp 2 \
    
         -rc_lookahead 50 -coder 0 -bf 0 -refs 1 -flags2 -wpred-dct8x8 \
    
         -level 30 -maxrate 10000000 -bufsize 10000000 -wpredp 0 -b 1200k \
    
         -threads 0 -f mp4 OUTPUT.mp4

    Note : I’m skipping the aspect ratio because we handle that in the program, and we only resize it if the input resolution is greater than the output resolution.

    If there’s any suggestions for improvement, we are looking to balance speed, quality and conversion time.

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