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  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

  • ANNEXE : Les plugins utilisés spécifiquement pour la ferme

    5 mars 2010, par

    Le site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)

  • Selection of projects using MediaSPIP

    2 mai 2011, par

    The examples below are representative elements of MediaSPIP specific uses for specific projects.
    MediaSPIP farm @ Infini
    The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...)

Sur d’autres sites (3633)

  • Why does this ffmpeg filter result in an "Invalid Size" error ?

    10 avril 2019, par pdoherty926

    Why do I see this error message :

    [Parsed_scale_0 @ 0x559a264c28a0] Invalid size ’if(gt(iw’

    [AVFilterGraph @ 0x559a268a19e0] Error initializing filter ’scale’

    with args ’if(gt(iw’ Error initializing complex filters.

    Invalid argument

    when trying to crop a video using ffmpeg and the following complex filter :

    ffmpeg -f mp4 -ss 01:24 \ 
    
  -i https://storage.googleapis.com/bucket/video.mp4 \
    
  -y \
    
  -filter_complex scale='if(gt(iw,ih),-1,616):if(gt(iw,ih),1440,-1)', crop=1440:616 \
    
  -an \
    
  -vcodec libx264 \
    
  -r 60 -pix_fmt yuv420p \
    
  -movflags faststart \
    
  -f mp4 \
    
  -t 1 \
    
  /tmp/asset.1554913197962.mp4

    In case it’s relevant, here’s the output of ffprobe :

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'https://storage.googleapis.com/bucket/video.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf57.56.101
    
  Duration: 00:02:53.76, start: 0.000000, bitrate: 2910 kb/s
    
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 2777 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
    "streams": [
    
        {
    
            "index": 0,
    
            "codec_name": "h264",
    
            "codec_long_name": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10",
    
            "profile": "High",
    
            "codec_type": "video",
    
            "codec_time_base": "1001/60000",
    
            "codec_tag_string": "avc1",
    
            "codec_tag": "0x31637661",
    
            "width": 1920,
    
            "height": 1080,
    
            "coded_width": 1920,
    
            "coded_height": 1080,
    
            "has_b_frames": 1,
    
            "sample_aspect_ratio": "1:1",
    
            "display_aspect_ratio": "16:9",
    
            "pix_fmt": "yuv420p",
    
            "level": 40,
    
            "color_range": "tv",
    
            "color_space": "bt709",
    
            "color_transfer": "bt709",
    
            "color_primaries": "bt709",
    
            "chroma_location": "left",
    
            "refs": 1,
    
            "is_avc": "true",
    
            "nal_length_size": "4",
    
            "r_frame_rate": "30000/1001",
    
            "avg_frame_rate": "30000/1001",
    
            "time_base": "1/90000",
    
            "start_pts": 0,
    
            "start_time": "0.000000",
    
            "duration_ts": 15633630,
    
            "duration": "173.707000",
    
            "bit_rate": "2777254",
    
            "bits_per_raw_sample": "8",
    
            "nb_frames": "5206",
    
            "disposition": {
    
                "default": 1,
    
                "dub": 0,
    
                "original": 0,
    
                "comment": 0,
    
                "lyrics": 0,
    
                "karaoke": 0,
    
                "forced": 0,
    
                "hearing_impaired": 0,
    
                "visual_impaired": 0,
    
                "clean_effects": 0,
    
                "attached_pic": 0,
    
                "timed_thumbnails": 0
    
            },
    
            "tags": {
    
                "language": "und",
    
                "handler_name": "VideoHandler"
    
            }
    
        },
    
        {
    
            "index": 1,
    
            "codec_name": "aac",
    
            "codec_long_name": "AAC (Advanced Audio Coding)",
    
            "profile": "LC",
    
            "codec_type": "audio",
    
            "codec_time_base": "1/44100",
    
            "codec_tag_string": "mp4a",
    
            "codec_tag": "0x6134706d",
    
            "sample_fmt": "fltp",
    
            "sample_rate": "44100",
    
            "channels": 2,
    
            "channel_layout": "stereo",
    
            "bits_per_sample": 0,
    
            "r_frame_rate": "0/0",
    
            "avg_frame_rate": "0/0",
    
            "time_base": "1/44100",
    
            "start_pts": 0,
    
            "start_time": "0.000000",
    
            "duration_ts": 7662596,
    
            "duration": "173.755011",
    
            "bit_rate": "125588",
    
            "max_bit_rate": "125588",
    
            "nb_frames": "7483",
    
            "disposition": {
    
                "default": 1,
    
                "dub": 0,
    
                "original": 0,
    
                "comment": 0,
    
                "lyrics": 0,
    
                "karaoke": 0,
    
                "forced": 0,
    
                "hearing_impaired": 0,
    
                "visual_impaired": 0,
    
                "clean_effects": 0,
    
                "attached_pic": 0,
    
                "timed_thumbnails": 0
    
            },
    
            "tags": {
    
                "language": "eng",
    
                "handler_name": "SoundHandler"
    
            }
    
        }
    
    ],
    
    "format": {
    
        "filename": "https://storage.googleapis.com/bucket/video.mp4",
    
        "nb_streams": 2,
    
        "nb_programs": 0,
    
        "format_name": "mov,mp4,m4a,3gp,3g2,mj2",
    
        "format_long_name": "QuickTime / MOV",
    
        "start_time": "0.000000",
    
        "duration": "173.755000",
    
        "size": "63209767",
    
        "bit_rate": "2910294",
    
        "probe_score": 100,
    
        "tags": {
    
            "major_brand": "isom",
    
            "minor_version": "512",
    
            "compatible_brands": "isomiso2avc1mp41",
    
            "encoder": "Lavf57.56.101"
    
        }
    
    }
    
}

  • How to get the correct result file data if I use Web Worker on ffmpeg.js ?

    23 avril 2019, par SuperBerry

    I have tried to use FFMPEG.js (https://github.com/Kagami/ffmpeg.js) to convert mp3 files on the browser/client side, and I followed the usage of the page of Web Worker. However, the worker works well on the converting and it seems the file has been converted, but I cannot get the correct result file data back.

    Here my code is :

    <code class="echappe-js">&lt;script&gt;<br />
    
<br />
    
var stdout = &quot;&quot;;<br />
    
var outputhtml=&quot;&quot;;<br />
    
var stderr = &quot;&quot;;<br />
    
var outputfile;<br />
    
<br />
    
var sampleVideoData;<br />
    
<br />
    
function retrieveSampleVideo() {<br />
    
  var oReq = new XMLHttpRequest();<br />
    
  oReq.open(&quot;GET&quot;, &quot;short.mp3&quot;, true);<br />
    
  oReq.responseType = &quot;arraybuffer&quot;;<br />
    
<br />
    
  oReq.onload = function (oEvent) {<br />
    
    var arrayBuffer = oReq.response;<br />
    
    if (arrayBuffer) {<br />
    
      sampleVideoData = new Uint8Array(arrayBuffer);<br />
    
    }<br />
    
  };<br />
    
<br />
    
  oReq.send(null);<br />
    
}<br />
    
<br />
    
function getDownloadLink(fileData, fileName) {<br />
    
  var a = document.createElement('a');<br />
    
  a.download = fileName;<br />
    
  var blob = new Blob([fileData]);<br />
    
  var src = window.URL.createObjectURL(blob);<br />
    
  a.href = src;<br />
    
  a.textContent = 'Click here to download ' + fileName + &quot;!&quot;;<br />
    
  document.body.appendChild(a);<br />
    
}<br />
    
<br />
    
var worker = new Worker(&quot;ffmpeg-worker-mp4.js&quot;);<br />
    
<br />
    
retrieveSampleVideo();<br />
    
<br />
    
var memfs =[];  <br />
    
<br />
    
//[, {name: &quot;input.mp3&quot;, data: output}];<br />
    
<br />
    
worker.onmessage = function(e) {<br />
    
  var msg = e.data;<br />
    
<br />
    
  switch (msg.type) {<br />
    
  case &quot;ready&quot;:<br />
    
    console.log(&quot;ready: &quot; + msg.data);<br />
    
    alert(sampleVideoData.length);<br />
    
    memfs.push({name: &quot;input.mp3&quot;, data: sampleVideoData});<br />
    
    memfs.push({name: &quot;output.mp3&quot;, data: outputfile});<br />
    
<br />
    
    worker.postMessage({type: &quot;run&quot;, MEMFS: memfs, arguments: [&quot;-i&quot;, &quot;input.mp3&quot;, &quot;-y&quot;, &quot;output.mp3&quot;]});<br />
    
<br />
    
<br />
    
    break;<br />
    
  case &quot;stdout&quot;:<br />
    
    console.log(&quot;stdout: &quot; + msg.data);<br />
    
    stdout += msg.data + &quot;\n&quot;;<br />
    
    outputhtml+=msg.data + &quot;&lt;br&gt;&quot;;<br />
    
<br />
    
    break;<br />
    
  case &quot;stderr&quot;:<br />
    
    console.log(&quot;stderr: &quot; + msg.data);<br />
    
    stderr += msg.data + &quot;\n&quot;;<br />
    
    outputhtml+=msg.data + &quot;&lt;br&gt;&quot;;<br />
    
<br />
    
    break;<br />
    
<br />
    
  case &quot;exit&quot;:<br />
    
<br />
    
    console.log(&quot;Process exited with code &quot; + msg.data);<br />
    
    console.log(stdout);<br />
    
    document.write(outputhtml);<br />
    
<br />
    
    getDownloadLink(outputfile, &quot;output.mp3&quot;);<br />
    
    worker.terminate();<br />
    
<br />
    
<br />
    
    break;<br />
    
  }<br />
    
};<br />
    
<br />
    
    &lt;/script&gt;

    And the console output looks good :

    stderr: ffmpeg version n3.1.2 Copyright (c) 2000-2016 the FFmpeg developers index.html:66:4
    
stderr:   built with emcc (Emscripten gcc/clang-like replacement) 1.36.7 () index.html:66:4
    
stderr:   configuration: --cc=emcc --enable-cross-compile --target-os=none --arch=x86 --disable-runtime-cpudetect --disable-asm --disable-fast-unaligned --disable-pthreads --disable-w32threads --disable-os2threads --disable-debug --disable-stripping --disable-all --enable-ffmpeg --enable-avcodec --enable-avformat --enable-avutil --enable-swresample --enable-swscale --enable-avfilter --disable-network --disable-d3d11va --disable-dxva2 --disable-vaapi --disable-vda --disable-vdpau --enable-decoder=vp8 --enable-decoder=vp9 --enable-decoder=theora --enable-decoder=mpeg2video --enable-decoder=mpeg4 --enable-decoder=h264 --enable-decoder=hevc --enable-decoder=png --enable-decoder=mjpeg --enable-decoder=vorbis --enable-decoder=opus --enable-decoder=mp3 --enable-decoder=ac3 --enable-decoder=aac --enable-decoder=ass --enable-decoder=ssa --enable-decoder=srt --enable-decoder=webvtt --enable-demuxer=matroska --enable-demuxer=ogg --enable-demuxer=avi --enable-demuxer=mov --enable-demuxer=flv --enable-demuxer=mpegps --enable-demuxer=image2 --enable-demuxer=mp3 --enable-demuxer=concat --enable-protocol=file --enable-filter=aresample --enable-filter=scale --enable-filter=crop --enable-filter=overlay --disable-bzlib --disable-iconv --disable-libxcb --disable-lzma --disable-sdl --disable-securetransport --disable-xlib --disable-zlib --enable-encoder=libx264 --enable-encoder=libmp3lame --enable-encoder=aac --enable-muxer=mp4 --enable-muxer=mp3 --enable-muxer=null --enable-gpl --enable-libmp3lame --enable-libx264 --extra-cflags=-I../lame/dist/include --extra-ldflags=-L../lame/dist/lib index.html:66:4
    
stderr:   libavutil      55. 28.100 / 55. 28.100 index.html:66:4
    
stderr:   libavcodec     57. 48.101 / 57. 48.101 index.html:66:4
    
stderr:   libavformat    57. 41.100 / 57. 41.100 index.html:66:4
    
stderr:   libavfilter     6. 47.100 /  6. 47.100 index.html:66:4
    
stderr:   libswscale      4.  1.100 /  4.  1.100 index.html:66:4
    
stderr:   libswresample   2.  1.100 /  2.  1.100 index.html:66:4
    
stderr: [mp3 @ 0x812380] Warning: not compiled with thread support, using thread emulation index.html:66:4
    
stderr: Input #0, mp3, from 'input.mp3': index.html:66:4
    
stderr:   Metadata: index.html:66:4
    
stderr:     encoder         : Lavf57.66.101 index.html:66:4
    
stderr:   Duration: 00:00:03.02, start: 0.023021, bitrate: 128 kb/s index.html:66:4
    
stderr:     Stream #0:0: Audio: mp3, 48000 Hz, stereo, s16p, 128 kb/s index.html:66:4
    
stderr:     Metadata: index.html:66:4
    
stderr:       encoder         : Lavc57.75 index.html:66:4
    
stderr: [mp3 @ 0x8240f0] Warning: not compiled with thread support, using thread emulation index.html:66:4
    
stderr: [libmp3lame @ 0x81b8a0] Warning: not compiled with thread support, using thread emulation index.html:66:4
    
stderr: [mp3 @ 0x80b0f0] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead. index.html:66:4
    
stderr: Output #0, mp3, to 'output.mp3': index.html:66:4
    
stderr:   Metadata: index.html:66:4
    
stderr:     TSSE            : Lavf57.41.100 index.html:66:4
    
stderr:     Stream #0:0: Audio: mp3 (libmp3lame), 48000 Hz, stereo, s16p index.html:66:4
    
stderr:     Metadata: index.html:66:4
    
stderr:       encoder         : Lavc57.48.101 libmp3lame index.html:66:4
    
stderr: Stream mapping: index.html:66:4
    
stderr:   Stream #0:0 -> #0:0 (mp3 (native) -> mp3 (libmp3lame)) index.html:66:4
    
stderr: Press [q] to stop, [?] for help index.html:66:4
    
stderr: size=      47kB time=00:00:03.00 bitrate= 129.6kbits/s speed=10.9x    index.html:66:4
    
stderr: video:0kB audio:47kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.489831% index.html:66:4
    
Process exited with code 0

    I have set the output into the memfs in the code :

    memfs.push(name : "output.mp3", data : outputfile) ;

    But I cannot get the result file data in outputfile to create the blob downloadd link.

  • Why the result of FFmpeg capture process has no audio to create a webm file ?

    23 mars 2019, par RAM

    The result of my bellow FFmpeg command has no audio (is silent) :

    ffmpeg -f gdigrab -framerate 30 -i desktop -video_size 720x480 -c:v libvpx-vp9 -c:a libopus -b:v 1M -b:a 128K -auto-alt-ref 0 -crf 10 -preset ultrafast output.webm

    But this one has audio :

    ffmpeg -f gdigrab -i desktop -f dshow -i audio="Microphone (4- High Definition Audio Device)" output.mkv
    • How should I capture as webm file by using libopus or libvorbis ?
    • What is the problem in my first command ?

    My FFmpeg version :

    ffmpeg version N-93439-gb073fb9eea Copyright (c) 2000-2019 the FFmpeg developers
    
  built with gcc 8.2.1 (GCC) 20190212
    
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg 
    
                 --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab 
    
                 --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
    
  libavutil      56. 26.100 / 56. 26.100
    
  libavcodec     58. 47.105 / 58. 47.105
    
  libavformat    58. 26.101 / 58. 26.101
    
  libavdevice    58.  7.100 / 58.  7.100
    
  libavfilter     7. 48.100 /  7. 48.100
    
  libswscale      5.  4.100 /  5.  4.100
    
  libswresample   3.  4.100 /  3.  4.100
    
  libpostproc    55.  4.100 / 55.  4.100

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