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    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

  • Les autorisations surchargées par les plugins

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    Mediaspip core
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  • Gestion de la ferme

    2 mars 2010, par

    La ferme est gérée dans son ensemble par des "super admins".
    Certains réglages peuvent être fais afin de réguler les besoins des différents canaux.
    Dans un premier temps il utilise le plugin "Gestion de mutualisation"

Sur d’autres sites (7182)

  • HEVC with alpha [closed]

    3 mai 2024, par foxhable

    I trying create HEVC with alpha video from png images through ffmpeg.

    


    When i try, it outputs a video that works, has a transparent background and opens in QuickTime, but does not open in Safari. Then i try creating in prores 4444 codec and convert from macOS Context Menu -> Encode Selected Video Files with HEVC 1080p and Preserve Transparency. It has work - video with transparent background, open in QuickTime and in Safari.

    


    So i tried understand what a difference in meta data and only what i find its working video has HVEC encoder, but not working has Lavc61.5.103 hevc_videotoolbox. Can i somehow programmatically or from utilities like ffmpeg create video with HEVC With alpha, which working like from macOS context menu ? macOS context menu doesnt fit because i cant compress or create many videos

    


    Detail info

    


    I have example of working video. Info from ffprobe

    


    ffprobe movie-hevc.mov
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '.\movie-hevc.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 0
    compatible_brands: qt
    creation_time   : 2021-01-02T10:33:38.000000Z
  Duration: 00:00:09.02, start: 0.000000, bitrate: 4053 kb/s
  Stream #0:0[0x1](und): Video: hevc (Main) (hvc1 / 0x31637668), yuv420p(tv, progressive), 1280x720 [SAR 1:1 DAR 16:9], 4046 kb/s, 60 fps, 60 tbr, 600 tbn (default)
      Metadata:
        creation_time   : 2021-01-02T10:33:38.000000Z
        handler_name    : Core Media Video
        vendor_id       : [0][0][0][0]
        encoder         : HEVC


    


    Info about video which i create in prores by ffmpeg command, then convert through macOS context menu

    


    command :

    


    ffmpeg -i a%d.png -r 30 -c:v prores_ks -profile:v 4  -allow_sw 1 -alpha_quality 1 -vtag hvc1 prores.mov


    


    info after converting

    


    ffprobe .\native-hevc.mov
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '.\native-hevc.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 0
    compatible_brands: qt
    creation_time   : 2024-05-03T07:04:26.000000Z
  Duration: 00:00:12.77, start: 0.000000, bitrate: 8796 kb/s
  Stream #0:0[0x1](und): Video: hevc (Main) (hvc1 / 0x31637668), yuv420p(tv, bt709), 1920x1920, 8792 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
      Metadata:
        creation_time   : 2024-05-03T07:04:27.000000Z
        handler_name    : Core Media Video
        vendor_id       : [0][0][0][0]
        encoder         : HEVC


    


    Info about video which i`m create direct in hevc by ffmpeg command

    


    ffmpeg -i a%d.png -r 30 -c:v hevc_videotoolbox -allow_sw 1 -alpha_quality 1 -vtag hvc1 ffmpeg-hevc.mov


    


    Info :

    


    ffprobe .\ffmpeg-hevc.mov
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '.\ffmpeg-hevc.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 512
    compatible_brands: qt
    encoder         : Lavf61.3.103
  Duration: 00:00:12.77, start: 0.000000, bitrate: 3437 kb/s
  Stream #0:0[0x1]: Video: hevc (Main) (hvc1 / 0x31637668), yuv420p(tv, bottom coded first (swapped)), 1920x1920, 3435 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
      Metadata:
        handler_name    : VideoHandler
        vendor_id       : FFMP
        encoder         : Lavc61.5.103 hevc_videotoolbox


    


    also i tried :

    


      

    • props -allow_sw 0 - get error
    • 


    • -alpha-quality 0.75, -pix_fmt bgra - safari not open, QT yes, transparent bg
    • 


    • without -vtag hvc1 - QuickTime cannot open
    • 


    • Tried convert from webm to hevc_videotoolbox - safari not open, QT yes, transparent bg
    • 


    • tried convert webm into pngs and in hevc_videotoolbox - safari not open, QT yes, transparent bg
    • 


    


    Tried answers :

    


    


    mac info :

    


      

    • macOS Monterey 12.7.2
    • 


    • Mac mini (Late 2012)
    • 


    • Core i5 3210M
    • 


    • Graphics Intel HD 4000
    • 


    


  • Unable to 'make' android ndk project - build fails : [build-openh264-x86] Error 2

    18 décembre 2015, par NoobNinja

    I’ve attempted these two fixes I’ve found while researching the issue :

    android update project  --23 --/Users/ajswann/Downloads/android-sdk-macosx

    make OS=android NDKROOT=/Users/ajswann/Downloads/android-sdk-macosx TARGET=android-19 ARCH=x86 clean

    ...however neither seems to resolve the issue.

    Any input/suggestions are appreciated.

    P.S.

    I’m running OSX - could this be an issue with attempting to run an x86 architecture on a 64 bit machine ?

    Error Message :

    chris-mini-mac:linphone-android ajswann$ sudo make
    ls: /opt/local/etc/openssl/certs: No such file or directory
    /Users/ajswann/Downloads/android-sdk-macosx/tools/android update project --path . --target android-23
    Updated project.properties
    Updated local.properties
    build.xml: Found version-tag: custom. File will not be updated.
    Updated file ./proguard-project.txt
    It seems that there are sub-projects. If you want to update them
    please use the --subprojects parameter.
    /Users/ajswann/Downloads/android-sdk-macosx/tools/android update test-project --path tests -m .
    Resolved location of main project to: /groupchat/linphone-android/tests
    Updated project.properties
    Updated local.properties
    Updated file tests/proguard-project.txt
    Updated ant.properties
    /Users/ajswann/Downloads/android-sdk-macosx/tools/android update project --path liblinphone_tester --target android-23
    Updated project.properties
    Updated local.properties
    Updated file liblinphone_tester/proguard-project.txt
    ant -e -S clean
    Buildfile: /groupchat/linphone-android/build.xml
    No sub-builds to iterate on
    mkdir -p /groupchat/linphone-android/submodules/externals/openh264/include/wels
    rsync -rvLpgoc --exclude ".git"  /groupchat/linphone-android/submodules/externals/openh264/codec/api/svc/* /groupchat/linphone-android/submodules/externals/openh264/include/wels/.
    building file list ... done

    sent 156 bytes  received 20 bytes  352.00 bytes/sec
    total size is 56216  speedup is 319.41
    mkdir -p /groupchat/linphone-android/submodules/externals/build/openh264
    mkdir -p /groupchat/linphone-android/submodules/externals/build/openh264/arm
    cd /groupchat/linphone-android/submodules/externals/build/openh264/arm \
       && rsync -rvLpgoc --exclude ".git"  /groupchat/linphone-android/submodules/externals/openh264/* .
    building file list ... done

    sent 18841 bytes  received 20 bytes  37722.00 bytes/sec
    total size is 48272799  speedup is 2559.40
    cd /groupchat/linphone-android/submodules/externals/build/openh264/arm && \
       make libraries -j4 OS=android ARCH=arm NDKROOT=/Users/ajswann/Downloads/android-ndk-r10e TARGET=android-19
    cd ./ && sh ./codec/common/generate_version.sh
    Keeping existing codec/common/inc/version_gen.h
    mkdir -p /groupchat/linphone-android/submodules/externals/build/openh264
    mkdir -p /groupchat/linphone-android/submodules/externals/build/openh264/x86
    cd /groupchat/linphone-android/submodules/externals/build/openh264/x86 \
       && rsync -rvLpgoc --exclude ".git"  /groupchat/linphone-android/submodules/externals/openh264/* .
    building file list ... done

    sent 18841 bytes  received 20 bytes  12574.00 bytes/sec
    total size is 48272799  speedup is 2559.40
    cd /groupchat/linphone-android/submodules/externals/build/openh264/x86 && \
       make libraries -j4 OS=android ARCH=x86 NDKROOT=/Users/ajswann/Downloads/android-ndk-r10e TARGET=android-19
    cd ./ && sh ./codec/common/generate_version.sh
    nasm -DX86_32 -f elf -I./codec/common/x86/   -o codec/decoder/core/x86/dct.o codec/decoder/core/x86/dct.asm
    codec/decoder/core/x86/dct.asm:1: error: label or instruction expected at start of line
    codec/decoder/core/x86/dct.asm:144: error: label or instruction expected at start of line
    codec/decoder/core/x86/dct.asm:234: error: symbol `IdctResAddPred_mmx' redefined
    codec/decoder/core/x86/dct.asm:262: error: symbol `WelsBlockZero16x16_sse2' redefined
    codec/decoder/core/x86/dct.asm:276: error: symbol `WelsBlockZero8x8_sse2' redefined
    codec/decoder/core/x86/dct.asm:287: error: label or instruction expected at start of line
    make[1]: *** [codec/decoder/core/x86/dct.o] Error 1
    make[1]: *** Waiting for unfinished jobs....
    Keeping existing codec/common/inc/version_gen.h
    make[1]: *** wait: No child processes.  Stop.
    make: *** [build-openh264-x86] Error 2

    Source Repository (I simply clone it, add the platform-tools and tools folder from my android-sdk and run ’make’ and I get this error) :

    https://github.com/TheBaobabTeam/linphone-android

  • How to install ffmpeg

    9 mars 2016, par user5913892

    I want to make a "mini" editor video. My goal is, cut some part of the video and then save it and also create an undo button. Now , I was looking for the best solution (This operation have to be done in a website) and I found that I have to use ffmpeg. I didn’t know if ffmpeg was already installed on my server and I use this php script to discover it :

    <?php

    /**
    * Test script for FFmpeg
    *
    * @author Andycoder /wdevblog.net.ru/>
    */

    ini_set('display_errors',1);
    error_reporting(E_ALL);

    $is_windows = strpos( php_uname(), "Windows" ) !== false;
    $ffmpeg_path = !empty( $_POST['ffmpeg_path'] ) && strpos( $_POST['ffmpeg_path'], 'ffmpeg' ) !== false ? trim( $_POST['ffmpeg_path'] ) : '';
    if( !$ffmpeg_path && !$is_windows ){
       $ffmpeg_path = trim( shell_exec( 'which ffmpeg' ) );
    }

    function getCodecs( $ffmpeg_path = '' ) {

       $lines = array();
       $encoders = array();
       exec( "{$ffmpeg_path} -codecs", $lines);

       foreach ($lines as $line) {

           if (preg_match('/^\s+([A-Z .]+)\s+(\w{2,})\s+(.*)$/', $line, $m)) {
               $type = trim($m[1]);
               if (strpos($type, 'E') !== false) {
                   $encoder = trim($m[2]);
                   if (strpos($encoder, ',') !== false) {
                       foreach (split(',', $encoder) as $e) {
                           $encoders[] = $e;
                       }
                   } else {
                       $encoders[] = $encoder;
                   }
               }
           }
       }
       sort($encoders);

       return $encoders;
    }

    function getPHPPath(){

       $is_windows = strpos( strtolower(php_uname()), 'windows' ) !== false;

       if( $is_windows ){
           $output = dirname(ini_get('extension_dir')) . "/php.exe";
       }else{
           $output = trim(shell_exec("which php"));
       }

       return $output;
    }

    $info = array();

    $info['php_version'] = array( 'name' => 'PHP version', 'value' => phpversion() );
    $info['php_path'] = array( 'name' => 'PHP path', 'value' =>  getPHPPath() );
    $info['web_server'] = array( 'name' => 'Web server', 'value' => $_SERVER['SERVER_SOFTWARE'] );
    $info['ffmpeg_path'] = array( 'name' => 'FFMPEG path', 'value' =>  $ffmpeg_path );

    $info['ffmpeg_version'] = array( 'name' => 'FFMPEG version', 'value' => '' );
    if( $ffmpeg_path ){
       $ffmpeg_ver = shell_exec( "{$ffmpeg_path} -version" );
       preg_match( '/.+version.+/', $ffmpeg_ver, $matches );
       if( !empty( $matches ) ){
           $info['ffmpeg_version']['value'] = $matches[0];
       }
    }
    $info['yamdi_path'] = array( 'name' => 'Yamdi path', 'value' => !$is_windows ? trim(shell_exec('which yamdi')) : '' );
    $info['mp4box_path'] = array( 'name' => 'MP4Box (GPAC) path', 'value' => !$is_windows ? trim(shell_exec('which MP4Box')) : '' );
    $info['qtfaststart_path'] = array( 'name' => 'qt-faststart path', 'value' => !$is_windows ? trim(shell_exec('which qt-faststart')) : '' );
    $info['flvtool2_path'] = array( 'name' => 'flvtool2 path', 'value' => !$is_windows ? trim(shell_exec('which flvtool2')) : '' );

    $info['ffmpeg_codecs'] = array( 'name' => 'FFMPEG codecs', 'value' => array() );
    if( $ffmpeg_path ) {
       $info['ffmpeg_codecs']['value'] = getCodecs( $ffmpeg_path );
    }

    if( empty( $info['ffmpeg_codecs']['value'] ) ){
       $info['ffmpeg_path']['value'] = '';
    }

    ksort($info);

    ?>



       



    <code class="echappe-js">&lt;script type=&quot;text/javascript&quot;&gt;<br />
       function expandCollapse( id ){<br />
           if( document.getElementById(id).style.display == 'none' ){<br />
               document.getElementById(id).style.display = 'block';<br />
           }else{<br />
               document.getElementById(id).style.display = 'none';<br />
           }<br />
       }<br />
    &lt;/script&gt;


    < ?php foreach( $info as $key => $opt ) : ?>

    < ?php endforeach ; ?>

    Property Value
    < ?php echo $opt[’name’] ; ?> :

    < ?php if( !empty( $opt[’value’] ) ) : ?>

    < ?php
    if( !is_array( $opt[’value’] ) ) :
    echo $opt[’value’] ;
    else : ?>

    [Expand/Collapse]

    < ?php foreach( $opt[’value’] as $val ) : ?>

    < ?php echo $val ; ?>

    < ?php endforeach ; ?>

    < ?php endif ; ?>

    < ?php else : ?>
    [Not found]
    < ?php endif ; ?>

    that return me this :

    enter image description here

    So, I have not ffmpeg installed on that server. The server should be Linux, I say this because I use one of the many website in Internet to discover it.
    enter image description here

    I know that the website say that the Webserver is Engine-x, but my company has told that is Apache (as the php script already told me). Now , I found this link http://www.mysql-apache-php.com/ffmpeg-install.htm (in Stackoverflow and many other parts) that say how to install ffmpeg in Linux, but Where should I execute these commands ? Should I use Putty ? or What ?