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  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • Configuration spécifique d’Apache

    4 février 2011, par

    Modules spécifiques
    Pour la configuration d’Apache, il est conseillé d’activer certains modules non spécifiques à MediaSPIP, mais permettant d’améliorer les performances : mod_deflate et mod_headers pour compresser automatiquement via Apache les pages. Cf ce tutoriel ; mode_expires pour gérer correctement l’expiration des hits. Cf ce tutoriel ;
    Il est également conseillé d’ajouter la prise en charge par apache du mime-type pour les fichiers WebM comme indiqué dans ce tutoriel.
    Création d’un (...)

Sur d’autres sites (10579)

  • Save Slow motion video with ffmpeg on android devices

    25 mars 2017, par nkalra0123

    I want to save videos in slow motion through my android app.I tried to convert videos into slow motion by changing frame rate.

    I used the following commands,first command is dumping 30 frames per second from videos to a temp directory, and then second command is using these images to create a video with reduced or faster frame rate and then i am deleting all the images from temp directory.

    ffmpeg -i input_file.mp4 -r 30/1 img%03d.png

    ffmpeg -framerate 15/1 -i img%03d.png -r 30 -pix_fmt yuv420p out4.mp4

    But this is a very slow operation. It is taking like forever even for small videos.

    I even tried to change PTS(presentation time stamp) of videos, but it is not working properly on android phones
    using this command :

    ffmpeg -i input.mkv -filter:v "setpts=2.0*PTS" output.mkv

    as suggested here :
    https://trac.ffmpeg.org/wiki/How%20to%20speed%20up%20/%20slow%20down%20a%20video

    Can anybody suggest me how can i make it fast. Is it necessary to save frames to a temp directory, can i pass the output of ffmpeg process to another ffmpeg process executing concurrently through some method.

    Is there any other ffmpeg command to save the videos in slow motion ?

  • FFMPEG - build ubuntu 32 bit - missing shared library : libspeex

    29 avril 2013, par Benoit Brayer

    I am currently doing a cross platform software calling ffmpeg in c++ and I need a ffmpeg build working on both ubuntu 32bits and 64bits for the installer.
    I also need this ffmpeg build to include librtmp, libh264, x11-grab, alsa, and mp3.

    I tried to compile ffmpeg on a 32bits virtual box to have a ffmpeg build working on ubuntu 32 bits and 62 bits.

    I used this guide to build ffmpeg :
    https://ffmpeg.org/trac/ffmpeg/wiki/UbuntuCompilationGuide

    After compiling all the libs and ffmpeg himself, after installation using the deb files, ffmpeg is working perfectly on the 32bits virtualbox with all of my required components but not on my 62bits ubuntu.

    When executing ffmpeg on ubuntu 64bits i got a message saying : impossible find the shared library libspeex.

    Do you have any idea why I have this problem only on linux 64bits with the save deb files ?
    Do you know a website where i could find an ffmpeg 32bits build with all the components I need (static if possible) ?
    I tried this website http://ffmpeg.gusari.org/static/ but the build is not including alsa...

    I have a build for windows working perfectly, I downloaded the 32 bits static build on this website : zeranoe builds website for windows.

    Thanks in advance for any answer.
    Regards.

    Benoit Brayer

  • Skipping incompatible libmp3lame.a while searching mp3lame (FFMPEG)

    19 octobre 2014, par trololo

    I want to compile ffmpeg with libmp3lame for my Android app. I’m using Virtual Machine with OS Debian.
    While compiling I recieve with message in Console.log file :

    skipping incompatible /home/sla/ffmpeg_build/lib/libmp3lame.a while searching mp3lame
    ...

    That’s why compilations doesn’t work properly.

    I’ve installed lame for debian using this code install.sh :
    (https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu)

    sudo apt-get install libmp3lame-dev
    mkdir /home/sla/ffmpeg_build
    mkdir /home/sla/ffmpeg_sources
    sudo apt-get install nasm
    cd /home/sla/ffmpeg_sources
    wget http://downloads.sourceforge.net/project/lame/lame/3.99/lame-3.99.5.tar.gz
    tar xzvf lame-3.99.5.tar.gz
    cd lame-3.99.5
    ./configure --prefix="/home/sla/ffmpeg_build" --enable-nasm --disable-shared
    make
    make install
    make distclean

    But it doesn’t work (lame compiles but ffmpeg - doesn’t).
    ffmpeg compiler says something strange.

    For ffmpeg I wrote flags :

    --export-cflags
    -I/home/sla/ffmpeg_build/include

    --export-ldflags
    -L/home/sla/ffmpeg_build/lib

    How to fix it ?