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  • Problèmes fréquents

    10 mars 2010, par

    PHP et safe_mode activé
    Une des principales sources de problèmes relève de la configuration de PHP et notamment de l’activation du safe_mode
    La solution consiterait à soit désactiver le safe_mode soit placer le script dans un répertoire accessible par apache pour le site

  • Gestion des droits de création et d’édition des objets

    8 février 2011, par

    Par défaut, beaucoup de fonctionnalités sont limitées aux administrateurs mais restent configurables indépendamment pour modifier leur statut minimal d’utilisation notamment : la rédaction de contenus sur le site modifiables dans la gestion des templates de formulaires ; l’ajout de notes aux articles ; l’ajout de légendes et d’annotations sur les images ;

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

Sur d’autres sites (6004)

  • How to link libav* libraries of FFmpeg in my own program ?

    20 août 2019, par zuguorui

    I am new to FFmpeg, now I want to use the FFmpeg codec compenet in my own program. I’ve followed the guide on FFmpeg wiki to complie the libraries the FFmpeg and get them done. But when I compile my own program it always tips ld: library not found for -lavutil or something like this.

    Environment：MacOS 10.14.6

    Compile tool : clang++

    steps :

    (1)Install all needed libraries follow the wiki.

    (2)./configuure --prefix=host --enable-shared --disable-static

    (3)make

    (4)make install, after this step, I got compiled files in dictionary host.

    (5)copy the source code in FFmpeg/doc/examples/decode_audio.c to create a new project, and copy includes and dylib files to my project dictionary. The structure of my project is :

    ./
    
|----FFmpeg
    
     |----include
    
          |----libavcodec
    
               |----*headers*
    
          |----libavformat
    
               |----*headers*
    
          |----libavutil
    
               |----*headers*
    
     |----lib
    
          |----libavutil.dylib
    
          |----libavcodec.dylib
    
          |----libavformat.dylib
    
|----main.cpp

    (6)compile the project.

    clang++ *.cpp -L./FFmpeg/lib/ -lavutil -lavformat -lavcodec -I ./FFmpeg/include -o main.out

    But it always fail with tip ld: library not found for -lavutil or something like this. I don’t know why. Do I need to install those libraries in /usr/local dictionary instead of host ? Or I miss some variables when configing or compiling ?

    update：I solved this problem, I copyed the links of dylib files but not dylib itself, which caused this problem. But a new problem rised, when I run the program, it tips dyld: Library not loaded: @executable_path/lib/libavcodec.dylib. Reason: image not loaded.

  • FFmpeg ogg - Invalid data found when processing input

    28 juillet 2017, par Earinor

    I am trying to change the framerate of a Video of mine. Below there is the example Input and the Output. I Built ffmpeg myself and I’m pretty sure I miss the right decoder/demuxer but I have no Idea what I need. I thought —enable-libtheora would be enough to enable, muxers, demuxers, encoder and decoder, but apperently there is somehting missing. Does anybody have an idea about this ?

    I have inserted path-to-ffmpeg to make this shorter, the Path itself is okay, so no worries about that.

       *path-to-ffmpeg*\ffmpeg>ffmpeg -i Video.ogg -filter "minterpolate='fps=60'" out.ogg
    
ffmpeg version 3.3.git Copyright (c) 2000-2017 the FFmpeg developers
    
  built with gcc 6.3.0 (x86_64-posix-seh-rev2, Built by MinGW-W64 project)
    
  configuration: --disable-encoders --disable-decoder=hevc --disable-decoder=raw
    
video --disable-decoder=ac3 --disable-decoder=flac --disable-decoder=ffwavesynth
    
 --disable-decoder=libcelt --disable-decoder=libgsm --disable-decoder=libilbc --
    
disable-decoder=libopus --disable-decoder=dvbsub --disable-decoder=dvdsub --disa
    
ble-hwaccels --disable-parsers --disable-bsfs --disable-protocols --disable-inde
    
vs --disable-outdevs --disable-devices --disable-filters --disable-muxers --disa
    
ble-demuxers --enable-muxer=ogg --enable-zlib --enable-libtheora --enable-libvor
    
bis --enable-shared --enable-encoder=libtheora --enable-encoder=libvorbis --enab
    
le-demuxer=image2 --enable-filter=framerate --enable-protocol=file --enable-filt
    
er=minterpolate --enable-filter=scale
    
  libavutil      55. 61.100 / 55. 61.100
    
  libavcodec     57. 93.100 / 57. 93.100
    
  libavformat    57. 72.101 / 57. 72.101
    
  libavdevice    57.  7.100 / 57.  7.100
    
  libavfilter     6. 85.100 /  6. 85.100
    
  libswscale      4.  7.101 /  4.  7.101
    
  libswresample   2.  8.100 /  2.  8.100
    
Video.ogg: Invalid data found when processing input

  • hls.js starting a beginning with ANDROID mobile (chrome, webview also) and not live *** but works very nice in deskto, ios .. hls.js 1.0.0 2021-04-01

    27 avril 2021, par Jintor

    I'm streaming a .m3u8 with the latest hls.js 1.0.0 (not rc) but version of 2021-04-01...

    


    example : the stream began at 5pm, and now it's 5:15 pm...

    


    the stream start at live point in almost all browsers

    


    The pattern I see here : ALL browsers in android (tested in Android 10) won't start at live point, only at 0...

    


    I did all the tests

    


    • Safari desktop => stream live at 5:15

    


    • Safari mobile => stream live at 5:15

    


    • WebView (Android) => ••• ISSUE : the player starts the stream at 0 (5pm)

    


    • WKWebView (apple IOS iphone,ipad) => stream live at 5:15

    


    • Chrome Desktop (mac/win) => stream live at 5:15

    


    • Chrome MOBILE (Android) => ••• ISSUE : the player starts the stream at 0 (5pm)

    


    • Chrome MOBILE (iPhone) => stream live at 5:15

    


    • Microsoft EDGE Desktop => stream live at 5:15

    


    • Microsoft EDGE mobile (android) => ••• ISSUE : the player starts the stream at 0 (5pm)

    


    • Firefox Desktop (mac/win) => stream live at 5:15

    


    • Opera Desktop (mac/win) => stream live at 5:15

    


    • Opera Mini (iPhone) => stream live at 5:15

    


    • Opera Mini (android) => ••• ISSUE : the player starts the stream at 0 (5pm)

    


    • Brave Desktop (mac/win) => stream live at 5:15

    


    • Brave Mobile (iPhone) => stream live at 5:15

    


    • Brave Mobile (android) => ••• ISSUE : the player starts the stream at 0 (5pm)

    


    This code

    


    <code class="echappe-js">&lt;script src=&quot;https://cdn.jsdelivr.net/npm/hls.js@latest&quot;&gt;&lt;/script&gt;&#xA;    
    

    &#xA;    &lt;script&gt;&amp;#xA;      var video = document.getElementById(&quot;video&quot;);&amp;#xA;      var videoSrc = &quot;https://www.example1.com/streaming/index.m3u8&quot;;&amp;#xA;      if (video.canPlayType(&quot;application/vnd.apple.mpegurl&quot;)) {&amp;#xA;        video.src = videoSrc;&amp;#xA;      } else if (Hls.isSupported()) {&amp;#xA;         var config = {&amp;#xA;            autoStartLoad: true,&amp;#xA;            startPosition: -1,&amp;#xA;            debug: false,&amp;#xA;            capLevelOnFPSDrop: false,&amp;#xA;            capLevelToPlayerSize: false,&amp;#xA;            defaultAudioCodec: undefined,&amp;#xA;            initialLiveManifestSize: 1,&amp;#xA;            maxBufferLength: 30,&amp;#xA;            maxMaxBufferLength: 500,&amp;#xA;            backBufferLength: Infinity,&amp;#xA;            maxBufferSize: 60 * 1000 * 1000,&amp;#xA;            maxBufferHole: 0.5,&amp;#xA;            highBufferWatchdogPeriod: 2,&amp;#xA;            nudgeOffset: 0.1,&amp;#xA;            nudgeMaxRetry: 3,&amp;#xA;            maxFragLookUpTolerance: 0.25,&amp;#xA;            liveSyncDurationCount: 3,&amp;#xA;            liveMaxLatencyDurationCount: Infinity,&amp;#xA;            liveDurationInfinity: false,&amp;#xA;            enableWorker: true,&amp;#xA;            enableSoftwareAES: true,&amp;#xA;            manifestLoadingTimeOut: 10000,&amp;#xA;            manifestLoadingMaxRetry: 1,&amp;#xA;            manifestLoadingRetryDelay: 1000,&amp;#xA;            manifestLoadingMaxRetryTimeout: 64000,&amp;#xA;            startLevel: undefined,&amp;#xA;            levelLoadingTimeOut: 10000,&amp;#xA;            levelLoadingMaxRetry: 4,&amp;#xA;            levelLoadingRetryDelay: 1000,&amp;#xA;            levelLoadingMaxRetryTimeout: 64000,&amp;#xA;            fragLoadingTimeOut: 20000,&amp;#xA;            fragLoadingMaxRetry: 6,&amp;#xA;            fragLoadingRetryDelay: 1000,&amp;#xA;            fragLoadingMaxRetryTimeout: 64000,&amp;#xA;            startFragPrefetch: false,&amp;#xA;            testBandwidth: true,&amp;#xA;            progressive: false,&amp;#xA;            lowLatencyMode: true,&amp;#xA;            fpsDroppedMonitoringPeriod: 5000,&amp;#xA;            fpsDroppedMonitoringThreshold: 0.2,&amp;#xA;            appendErrorMaxRetry: 3,&amp;#xA;            enableWebVTT: true,&amp;#xA;            enableIMSC1: true,&amp;#xA;            enableCEA708Captions: true,&amp;#xA;            stretchShortVideoTrack: false,&amp;#xA;            maxAudioFramesDrift: 1,&amp;#xA;            forceKeyFrameOnDiscontinuity: true,&amp;#xA;            abrEwmaFastLive: 3.0,&amp;#xA;            abrEwmaSlowLive: 9.0,&amp;#xA;            abrEwmaFastVoD: 3.0,&amp;#xA;            abrEwmaSlowVoD: 9.0,&amp;#xA;            abrEwmaDefaultEstimate: 500000,&amp;#xA;            abrBandWidthFactor: 0.95,&amp;#xA;            abrBandWidthUpFactor: 0.7,&amp;#xA;            abrMaxWithRealBitrate: false,&amp;#xA;            maxStarvationDelay: 4,&amp;#xA;            maxLoadingDelay: 4,&amp;#xA;            minAutoBitrate: 0,&amp;#xA;            emeEnabled: false&amp;#xA;        };&amp;#xA;        var hls = new Hls(config);&amp;#xA;        hls.loadSource(videoSrc);&amp;#xA;        hls.attachMedia(video);&amp;#xA;      }   &amp;#xA;      video.addEventListener(&quot;loadedmetadata&quot;, function(){ video.muted = true; video.play(); }, false);&amp;#xA;    &lt;/script&gt;&#xA;

    &#xA;

    // here I added video.muted = true ; video.play() ; to auto start, if I try to autoplay unmuted, many browsers refuse this command...

    &#xA;

    // playsinline="true" is NEEDED for safari

    &#xA;

    ••••••• THE FFMPEG COMMAND (working : it allows me to have 3 to 4 seconds delay ••••••

    &#xA;

    ffmpeg -re -i input.x -c:a aac -c:v libx264 &#xA;-movflags &#x2B;dash -preset ultrafast &#xA;-crf 28 -refs 4 -qmin 4 -pix_fmt yuv420p &#xA;-tune zerolatency -c:a aac -ac 2 -profile:v main &#xA;-flags -global_header -bufsize 969k &#xA;-hls_time 1 -hls_list_size 0 -g 30 &#xA;-start_number 0 -streaming 1 -hls_playlist 1 &#xA;-lhls 1 -hls_playlist_type event -f hls path_to_index.m3u8&#xA;

    &#xA;

    •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••

    &#xA;

    How can this be fixed ?

    &#xA;

    How can I make play at live point on load in android MOBILE ?

    &#xA;

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