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  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

  • 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.
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  • Création définitive du canal

    12 mars 2010, par

    Lorsque votre demande est validée, vous pouvez alors procéder à la création proprement dite du canal. Chaque canal est un site à part entière placé sous votre responsabilité. Les administrateurs de la plateforme n’y ont aucun accès.
    A la validation, vous recevez un email vous invitant donc à créer votre canal.
    Pour ce faire il vous suffit de vous rendre à son adresse, dans notre exemple "http://votre_sous_domaine.mediaspip.net".
    A ce moment là un mot de passe vous est demandé, il vous suffit d’y (...)

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  • Anomalie #4128 : Bug de génération de boucle avec les modèles Spip

    11 avril 2018, par Julien PORIAU

    Salut,
    parfois le jeu de caractère "binaire" est visible uniquement dans le
    code source (ligne 1233). Mais on observe tout de même un soucis dans la
    mise en page.

    view-source:http://spip-dev.nidecker.com/probleme-de-langue.html?lang=ca

    Julien.

    Le 11.04.2018 à 14:28, a écrit :

    La demande #4128 a été mise à jour par b b.

    • Statut changé de /Nouveau/ à /En cours/
    • Priorité changé de /Haut/ à /Bas/

    Salut, peux-tu fournir le code du modèle en question ?

    De mon côté, je n’ai aucun problème sur la page que tu cites en exemple...


    Anomalie #4128 : Bug de génération de boucle avec les modèles Spip
    <https://core.spip.net/issues/4128#change-13824>

    • Auteur : Julien PORIAU
    • Statut : En cours
    • Priorité : Bas
    • Assigné à :
    • Catégorie : code généré
    • Version cible : 3.2
    • Resolution :
    • Navigateur : Firefox

    Dans les modèles personnalisés Spip, les images (boucle documents ou
    logos) sont mal générées et provoque un bug d’encodage visible dans le
    front-end lors du passage dans une autre langue (balises multi).
    Nous n’avons pas trouvé où était le souci dans Spip, mais les
    caractères qui remontent dans le code source, ressemblent aux octets
    qui composent le fichier binaire d’une image.
    Voir en live ici :
    http://spip-dev.nidecker.com/probleme-de-langue.html?lang=ca.

    Pour essayer d’isoler cette anomalie, nous avons procédé de la sorte
    avec l’aide de mon développeur :

    1. Nous sommes reparti d’un SPIP 3.1.7 entièrement neuf (minimal),
    avec deux modèles Spip, rien d’autre.
    Le bug se reproduit, ce qui exclus un problème lié aux squelettes ou
    autres plugins.

    Nous n’avons pas réussi a déterminer précisément ce qui génère ce bug,
    à part que c’est dans un contexte où on appelle une langue pas définie
    dans le multi.
    En fonction du contenu de l’article, du nombre de modèles dans
    l’article, en fonction des boucles dans les inclure, le bug n’arrive
    pas au même endroit...

    Le problème vient de la génération des logos ou documents : si on
    supprime les balises |#LOGO_*| ou si on renomme |IMG| en |IMG_|, plus
    d’erreur.
    Même sans traitements, avec juste |[(#LOGO_*)]|, rien à faire.

    2. Nous avons pensé que c’était peut être une image au mauvais format :
    On a alors tenté de passer |ImageOptim| sur tout le répertoire |/IMG|,
    redimensionné tous les logos en vignettes png de 320x240, rien à faire...

    3. On a fini par passer ce site de test en 3.2, pas mieux.

    4. Nous avons épluché les caches générés dans |/tmp/cache| et
    |/tmp/cache/skel|, tout paraît normal de ce côté là..

    5. On a ensuite un peu avancé en enlevant dans |mes_options.php| la
    variable |$GLOBALS[’forcer_lang’] = true|".
    Sur la version minimal, plus de bug. Mais sur le site de production,
    le problème réside toujours.
    Mais en faisant des tests avec et sans (et en supprimant bien
    |/tmp/cache/| à chaque fois), ça se confirme pour la version minimal.

    6. A partir d’une copie de la version production, nous avons désactivé
    tout les plugins, passer |ImageOptim| sur |/IMG| et rien a faire..
    Impossible de déterminé d’où vient le problème :(

    7. Nous avons essayé d’écrire comme ceci : |[src="(#LOGO_MOT|image_reduire50,*|extraire_attributsrc)" alt="">]|
    Cela fonctionne sur la version minimal mais pas sur la version production.

    8. Dans la version minimal, j’ai encore récemment testé une dernière
    chose. J’ai supprimé les documents non sollicités sur ma page de teste
    (spip.php ?article1441&lang=ca).
    Avec la requête SQL suivante : |DELETE FROM jones_documents WHERE
    id_document NOT IN
    (1948,1949,2534,2535,630,631,1783,1784,1785,1786,1787,1788,1781,1782)|
    Le bug n’apparait plus..

    Je sèche..

    Vous trouverez ici en téléchargement une archive de la version minimal
    (Spip 3.1.7) :
    https://www.dropbox.com/s/dek0zg7jafl8uxe/jones.zip?dl=0] ( 20mo)
    Pour reproduire le bug, il suffit de passer la variable "&lang=ca"
    dans l’article 1441 (localhost/spip.php ?article1441&lang=ca).

    Je donne volontiers un accès à la version production si besoin.


    Vous recevez ce mail car vous êtes impliqués sur ce projet.
    Pour changer les préférences d’envoi de mail, allez sur
    http://core.spip.org/my/account

    ---
    L’absence de virus dans ce courrier électronique a été vérifiée par le logiciel antivirus Avast.
    https://www.avast.com/antivirus

  • Setting/Installing up OpenCV 2.4.6.1+ on Ubuntu 12.04.02

    30 mai 2016, par Damilola

    I had previously used OpenCV 2.4.5 with some certain configs and packages on Ubuntu 12.04.1 but had issues upgrading to OpenCV 2.4.6.1 on Ubuntu 12.04.2

    I would like to share some ideas (a compilation of noteworthy information gathered from several sources including SO, ubuntu.org, asklinux.org and many other ; and of course by trying several procedures)

    Below is what eventually got me through.

    NOTE : ensure you uninstall any previous installation of OpenCV, FFMpeg and other dependencies previously installed.

    STEP 1 (install ffmpeg and dependencies)


    # goto http://sourceforge.net/projects/opencvlibrary/files/opencv-unix/
    # download the latest stable opencv such as 2.4.6.1 (http://sourceforge.net/projects/opencvlibrary/files/opencv-unix/2.4.5/opencv-2.4.5.1.tar.gz/download) to current directory (such as home or ~/Document)
    # cd /opt
    # tar -xvf /OpenCV-2.4.6.1.tar.gz
    # cd OpenCV-2.4.6.1
    # create a foler under current dir (following previous step, this should be ), called prepare
    # cd prepare
    # Copy the following script to gedit and save as install.sh to current dir, this should be /prepare
    # Check corresponding url used in the script for latest versions of the package and replace as required
    # Open terminal and navigate to location used above
    # sudo chmod +x install.sh
    # ./install

    echo "Removing any pre-installed ffmpeg, x264, and other dependencies (not all the previously installed dependecies)"
    sudo apt-get remove ffmpeg x264 libx264-dev libvpx-dev librtmp0 librtmp-dev libopencv-dev
    sudo apt-get update

    arch=$(uname -m)
    if [ "$arch" == "i686" -o "$arch" == "i386" -o "$arch" == "i486" -o "$arch" == "i586" ]; then
    flag=0
    else
    flag=1
    fi

    echo "Installing Dependenices"
    sudo apt-get install autoconf automake make g++ curl cmake bzip2 python unzip \
     build-essential checkinstall git git-core libass-dev libgpac-dev \
     libsdl1.2-dev libtheora-dev libtool libva-dev libvdpau-dev libvorbis-dev libx11-dev \
     libxext-dev libxfixes-dev pkg-config texi2html zlib1g-dev

    echo "downloading yasm (assembler used by x264 and FFmpeg)"
    # use git or tarball (not both)
    wget http://www.tortall.net/projects/yasm/releases/yasm-1.2.0.tar.gz
    tar xzvf yasm-1.2.0.tar.gz
    cd yasm-1.2.0

    echo "installing yasm"
    ./configure
    make
    sudo make install
    cd ..

    echo 'READ NOTE BELOW which was extracted from http://wiki.serviio.org/doku.php?id=build_ffmpeg_linux'
    echo 'New version of x264 contains by default support of OpenCL. If not installed or without sense (example Ubuntu 12.04LTS on VMWare) add to configure additional option --disable-opencl. Without this option ffmpeg could not be configured (ERROR: libx264 not found).'

    echo "downloading x264 (H.264 video encoder)"
    # use git or tarball (not both)
    # git clone http://repo.or.cz/r/x264.git or
    git clone git://git.videolan.org/x264.git
    cd x264
    # wget ftp://ftp.videolan.org/pub/videolan/x264/snapshots/x264-snapshot-20130801-2245-stable.tar.bz2
    # tar -xvjf x264-snapshot-20130801-2245-stable.tar.bz2
    # cd x264-snapshot-20130801-2245-stable/

    echo "Installing x264"
    if [ $flag -eq 0 ]; then
    ./configure --enable-static --disable-opencl
    else
    ./configure --enable-shared --enable-pic --disable-opencl
    fi
    make
    sudo make install
    cd ..

    echo "downloading fdk-aac (AAC audio encoder)"
    # use git or tarball (not both)
    git clone --depth 1 git://github.com/mstorsjo/fdk-aac.git
    cd fdk-aac

    echo "installing fdk-aac"
    autoreconf -fiv
    ./configure --disable-shared
    make
    sudo make install
    cd ..

    echo "installing libmp3lame-dev (MP3 audio encoder.)"
    sudo apt-get install libmp3lame-dev

    echo "downloading libopus (Opus audio decoder and encoder.)"
    wget http://downloads.xiph.org/releases/opus/opus-1.0.3.tar.gz
    tar xzvf opus-1.0.3.tar.gz
    cd opus-1.0.3

    echo "installing libopus"
    ./configure --disable-shared
    make
    sudo make install
    cd ..

    echo "downloading libvpx VP8/VP9 video encoder and decoder)"
    # use git or tarball (not both)
    git clone --depth 1 http://git.chromium.org/webm/libvpx.git
    cd libvpx
    # wget http://webm.googlecode.com/files/libvpx-v1.1.0.tar.bz2 (this seems not to be update, but can still be used if the fedoraproject link below is not available))
    # wget http://pkgs.fedoraproject.org/repo/pkgs/libvpx/libvpx-v1.2.0.tar.bz2/400d7c940c5f9d394893d42ae5f463e6/libvpx-v1.2.0.tar.bz2
    # tar xvjf libvpx-v1.2.0.tar.bz2
    # cd libvpx-v1.2.0

    echo "installing libvpx"
    ./configure --disable-examples
    make
    sudo make install
    cd ..

    sudo ldconfig

    echo "downloading ffmpeg"
    # git clone http://repo.or.cz/r/ffmpeg.git
    git clone git://source.ffmpeg.org/ffmpeg.git
    cd ffmpeg/
    # wget http://ffmpeg.org/releases/ffmpeg-2.0.tar.bz2
    # tar -xvjf ffmpeg-2.0.tar.bz2
    # cd ffmpeg-2.0/

    echo "installing ffmpeg"
    if [ $flag -eq 0 ]; then
    ./configure --enable-gpl --enable-libass --enable-libfdk-aac --enable-libopus --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-nonfree --enable-postproc --enable-version3 --enable-x11grab --enable-libvpx
    else
    ./configure --enable-gpl --enable-libass --enable-libfdk-aac --enable-libopus --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-nonfree --enable-postproc --enable-version3 --enable-x11grab --enable-libvpx --enable-shared
    fi

    make
    sudo make install
    hash -r

    cd .. # move up one level to prepare folder
    cd .. # move up one level to opencv folder

    echo "Checking to see if you're using your new ffmpeg"
    ffmpeg 2>&amp;1 | head -n1

    sudo ldconfig

    STEP 2 (Install OpenCV and necessary packages)

    echo "Installing Dependenices"    
    sudo apt-get install libtiff4-dev libjpeg-dev libjasper-dev

    echo "installing Video I/O libraries, support for Firewire video cameras and video streaming libraries"
    sudo apt-get install libav-tools libavcodec-dev libavformat-dev libswscale-dev libdc1394-22-dev libxine-dev libgstreamer0.10-dev libgstreamer-plugins-base0.10-dev libv4l-dev v4l-utils v4l-conf

    echo "installing the Python development environment and the Python Numerical library"
    sudo apt-get install python-dev python-numpy

    echo "installing the parallel code processing library (the Intel tbb library)"
    sudo apt-get install libtbb-dev

    echo "installing the Qt dev library"
    sudo apt-get install libqt4-dev libgtk2.0-dev

    echo "installing other dependencies (if need be it would upgrade current version of the packages)"
    sudo apt-get install patch subversion ruby librtmp0 librtmp-dev libfaac-dev libmp3lame-dev libopencore-amrnb-dev libopencore-amrwb-dev libvpx-dev libxvidcore-dev

    echo installing optional packages"
    sudo apt-get install libdc1394-utils libdc1394-22-dev libdc1394-22 libjpeg-dev libpng-dev libtiff-dev libjasper-dev

    STEP 3 (run ldconfig)

    # Open a new terminal window
    # Open /etc/ld.so.conf and check,
    # if the paths "/usr/lib" and "/usr/local/lib" including the quote exist in the file. If not, add them manually or by
       sudo echo "/usr/local/lib" >> /etc/ld.so.conf
       sudo echo "/usr/lib" >> /etc/ld.so.conf
    # execute the following
       sudo ldconfig

    STEP 4a (Build & Install for OS Usage)

    # still ensure you haven't close the new terminal window open in STEP 3
    # execute the following
    mkdir os_build
    cd os_build
    cmake -DCMAKE_BUILD_TYPE=RELEASE -DCMAKE_INSTALL_PREFIX=/usr/local -DBUILD_NEW_PYTHON_SUPPORT=ON -DINSTALL_PYTHON_EXAMPLES=ON -DWITH_TBB=ON -DWITH_V4L=ON -DINSTALL_C_EXAMPLES=ON -DBUILD_EXAMPLES=ON -DWITH_QT=ON -DWITH_OPENGL=ON -DWITH_OPENCL=ON -DWITH_EIGEN=ON -DWITH_OPENEXR=ON ..

       make
       sudo make install

    # add the following to user environment variable ~/.bashrc
       export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/lib
       export PKG_CONFIG_PATH=${PKG_CONFIG_PATH}:/usr/local/lib/pkgconfig
    # execute the following
       sudo ldconfig
    # start to use and enjoy opencv, it should have been install into any of these locations
    #   /usr/local/include/opencv2, /usr/local/include/opencv, /usr/include/opencv, /usr/include/opencv2, /usr/local/share/opencv
    #   /usr/local/share/OpenCV, /usr/share/opencv, /usr/share/OpenCV, /usr/local/bin/opencv*, /usr/local/lib/libopencv*

    STEP 4b (Build for Java Usage) : OPTIONAL

    # still ensure you haven't close the new terminal window open in STEP 4
    # execute the following
       cd ..
       mkdir java_build
       cd java_build
       cmake -DCMAKE_BUILD_TYPE=RELEASE -DBUILD_SHARED_LIBS=OFF -DINSTALL_PYTHON_EXAMPLES=ON -DWITH_TBB=ON -DWITH_V4L=ON -DINSTALL_C_EXAMPLES=ON -DBUILD_EXAMPLES=ON -DWITH_QT=ON -DWITH_OPENGL=ON -DWITH_OPENCL=ON -DWITH_EIGEN=ON -DWITH_OPENEXR=ON ..

       make

    # You can check the "java_build/bin" directory to locate the jar and libopencv_java.so file for your development
    # As stated in the docs, the Java bindings dynamic library is all-sufficient, i.e. doesn’t depend on other OpenCV libs, but includes all the OpenCV code inside

    STEP 5 (install v4l : Note : installing v4l-utils after opencv installation works for Ubuntu 12.04.2 & OpenCV 2.4.6.1)

    # still ensure you haven't close the new terminal window open in STEP 3
    # goto http://www.linuxtv.org/downloads/v4l-utils
    # download the latest v4l such as v4l-utils-0.9.5.tar.bz2
    # copy the downloaded file to the current terminal dir (following previous step, this should be /prepare)
    # execute the following
       tar -xvjf v4l-utils-0.9.5.tar.bz2
       cd v4l-utils-0.9.5/
       ./configure
       make
       sudo make install
       cd ..
       cd .. # (to go to )
       sudo ldconfig

    Worth Noting

    # To check the path where opencv &amp; other lib files are stored, do:


    pkg-config --cflags opencv

       (output will come as)
       -I/usr/include/opencv



    pkg-config --libs opencv

       (output will come as)
       -lopencv_core -lopencv_imgproc -lopencv_highgui -lopencv_ --ml -lopencv_video -lopencv_features2d -lopencv_calib3d -lopencv_objdetect -lopencv_contrib -lopencv_legacy -lopencv_flann

    # The above paths are needed to compile your opencv programs, as given in the next illustration.

    # write a simple C program to test, by saving below program in a file named DisplayImage.c

    #include
       #include <opencv2></opencv2>highgui/highgui.hpp>

       int main(int argc, char *argv[]) {
           IplImage* img=0; /* pointer to an image */
           printf("Hello\n");

           if(argv[1] != 0)
               img = cvLoadImage(argv[1], 0); // 1 for color
           else
               printf("Enter filename\n");

           if(img != 0) {
               cvNamedWindow("Display", CV_WINDOW_AUTOSIZE); // create a window
               cvShowImage("Display", img); // show image in window
               cvWaitKey(0); // wait until user hits a key
               cvDestroyWindow("Display");
           }
           else
               printf("File not found\n");

           return 0;
       }

    # write a simple C++ program to test, by saving below program in a file named DisplayImage.cpp

    #include
    #include <opencv2></opencv2>opencv.hpp>
    #include <opencv2></opencv2>highgui/highgui.hpp>

    using namespace cv;

    int main( int argc, char** argv )
    {
     Mat image;
     image = imread( argv[1], 1 );

     if( argc != 2 || !image.data )
       {
         printf( "No image data \n" );
         return -1;
       }

     namedWindow( "Display Image", CV_WINDOW_AUTOSIZE );
     imshow( "Display Image", image );

     waitKey(0);

     return 0;
    }

    # To compile &amp; run :



    g++  `pkg-config --cflags --libs opencv` &amp;&amp; ./a.out img

    or



    g++ -I/usr/include/opencv -I/usr/local/include -lopencv_core -lopencv_highgui -lopencv_ml -lopencv_imgproc -lopencv_video -lopencv_features2d -lopencv_calib3d -lopencv_objdetect -lopencv_contrib -lopencv_legacy -lopencv_flann -lopencv_nonfree  &amp;&amp; ./a.out img

    where “img” is the name of any image with extension within the same folder .
    You should be able to see “Hello” and the image in a different window.

    If this runs, Congrats! now you can run any C/C++ program with opencv lib.


    # Now lets simplify the above big command by making a shortcut for it:
    go to your local home directory(cd /home/) and open the .bashrc file using gedit(the file will be hidden). Append the following to the file:



    alias gcv="g++ -I/usr/include/opencv -I/usr/local/include -lopencv_core -lopencv_highgui -lopencv_ml -lopencv_imgproc -lopencv_video -lopencv_features2d -lopencv_calib3d -lopencv_objdetect -lopencv_contrib -lopencv_legacy -lopencv_flann -lopencv_nonfree"

    and save. Close the terminal and open it again.(as this process requires relogin of the terminal)

    # Now, go to directory containing a sample program &amp; do



    gcv  &amp;&amp; ./a.out

    or



    gcv
       ./a.out input_img.jpg

    As you can see the commands now become similar to $cc filename.c, $./a.out which are used normally for compiling and executing C/C++ programs.


    Some ways to check whether all lib files are installed-

    apt-cache search opencv

    returns :

    libcv-dev - Translation package for libcv-dev
    libcv2.3 - computer vision library - libcv* translation package
    libcvaux-dev - Translation package for libcvaux-dev
    libcvaux2.3 - computer vision library - libcvaux translation package
    libhighgui-dev - Translation package for libhighgui-dev
    libhighgui2.3 - computer vision library - libhighgui translation package
    libopencv-calib3d-dev - development files for libopencv-calib3d
    libopencv-calib3d2.3 - computer vision Camera Calibration library
    libopencv-contrib-dev - development files for libopencv-contrib
    libopencv-contrib2.3 - computer vision contrib library
    libopencv-core-dev - development files for libopencv-core
    libopencv-core2.3 - computer vision core library
    libopencv-dev - development files for opencv
    libopencv-features2d-dev - development files for libopencv-features2d
    libopencv-features2d2.3 - computer vision Feature Detection and Descriptor Extraction library
    libopencv-flann-dev - development files for libopencv-flann
    libopencv-flann2.3 - computer vision Clustering and Search in Multi-Dimensional spaces library
    libopencv-gpu-dev - development files for libopencv-gpu
    libopencv-gpu2.3 - computer vision GPU Processing library
    libopencv-highgui-dev - development files for libopencv-highgui
    libopencv-highgui2.3 - computer vision High-level GUI and Media I/O library
    libopencv-imgproc-dev - development files for libopencv-imgproc
    libopencv-imgproc2.3 - computer vision Image Processing library
    libopencv-legacy-dev - development files for libopencv-legacy
    libopencv-legacy2.3 - computer vision legacy library
    libopencv-ml-dev - development files for libopencv-ml
    libopencv-ml2.3 - computer vision Machine Learning library
    libopencv-objdetect-dev - development files for libopencv-objdetect
    libopencv-objdetect2.3 - computer vision Object Detection library
    libopencv-video-dev - development files for libopencv-video
    libopencv-video2.3 - computer vision Video analysis library
    opencv-doc - OpenCV documentation and examples
    python-opencv - Python bindings for the computer vision library
  • Transcoding Modern Formats

    17 août 2014

    I’ve noticed that this blog still gets a decent amount of traffic, particularly to some of the older articles about transcoding. Since I’ve been working on a tool in this space recently, I thought I’d write something up in case it helps folks unravel how to think about transcoding these days.

    The tool I’ve been working on is EditReady, a transcoding app for the Mac. But why do you want to transcode in the first place ?

    Dailies

    After a day of shooting, there are a lot of people who need to see the footage from the day. Most of these folks aren’t equipped with editing suites or viewing stations - they want to view footage on their desktop or mobile device. That can be a problem if you’re shooting ProRes or similar.

    Converting ProRes, DNxHD or MPEG2 footage with EditReady to H.264 is fast and easy. With bulk metadata editing and custom file naming, the management of all the files from the set becomes simpler and more trackable.

    One common workflow would be to drop all the footage from a given shot into EditReady. Use the "set metadata for all" command to attach a consistent reel name to all of the clips. Do some quick spot-checks on the footage using the built in player to make sure it’s what you expect. Use the filename builder to tag all the footage with the reel name and the file creation date. Then, select the H.264 preset and hit convert. Now anyone who needs the footage can easily take the proxies with them on the go, without needing special codecs or players, and regardless of whether they’re working on a PC, a Mac, or even a mobile device.

    If your production is being shot in the Log space, you can use the LUT feature in EditReady to give your viewers a more traditional "video levels" daily. Just load a basic Log to Video Levels LUT for the batch, and your converted files will more closely resemble graded footage.

    Mezzanine Formats

    Even though many modern post production tools can work natively with H.264 from a GoPro or iPhone, there are a variety of downsides to that type of workflow. First and foremost is performance. When you’re working with H.264 in an editor or color correction tool, your computer has to constantly work to decompress the H.264 footage. Those are CPU cycles that aren’t being spent generating effects, responding to user interface clicks, or drawing your previews. Even apps that endeavor to support H.264 natively often get bogged down, or have trouble with all of the "flavors" of H.264 that are in use. For example, mixing and matching H.264 from a GoPro with H.264 from a mobile phone often leads to hiccups or instability.

    By using EditReady to batch transcode all of your footage to a format like ProRes or DNxHD, you get great performance throughout your post production pipeline, and more importantly, you get consistent performance. Since you’ll generally be exporting these formats from other parts of your pipeline as well - getting ProRes effects shots for example - you don’t have to worry about mix-and-match problems cropping up late in the production process either.

    Just like with dailies, the ability to apply bulk or custom metadata to your footage during your initial ingest also makes management easier for the rest of your production. It also makes your final output faster - transcoding from H.264 to another format is generally slower than transcoding from a mezzanine format. Nothing takes the fun out of finishing a project like watching an "exporting" bar endlessly creep along.

    Modernization

    The video industry has gone through a lot of digital formats over the last 20 years. As Mac OS X has been upgraded over the years, it’s gotten harder to play some of those old formats. There’s a lot of irreplaceable footage stored in formats like Sorensen Video, Apple Intermediate Codec, or Apple Animation. It’s important that this footage be moved to a modern format like ProRes or H.264 before it becomes totally unplayable by modern computers. Because EditReady contains a robust, flexible backend with legacy support, you can bring this footage in, select a modern format, and click convert. Back when I started this blog, we were mostly talking about DV and HDV, with a bit of Apple Intermediate Codec mixed in. If you’ve still got footage like that around, it’s time to bring it forward !

    Output

    Finally, the powerful H.264 transcoding pipeline in EditReady means you generate beautiful deliverable H.264 more rapidly than ever. Just drop in your final, edited ProRes, DNxHD, or even uncompressed footage and generate a high quality H.264 for delivery. It’s never been this easy !

    See for yourself

    We released a free trial of EditReady so you can give it a shot yourself. Or drop me a line if you have questions.