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  • Support audio et vidéo HTML5

    10 avril 2011

    MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
    Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
    Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
    Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

  • Soumettre bugs et patchs

    10 avril 2011

    Un logiciel n’est malheureusement jamais parfait...
    Si vous pensez avoir mis la main sur un bug, reportez le dans notre système de tickets en prenant bien soin de nous remonter certaines informations pertinentes : le type de navigateur et sa version exacte avec lequel vous avez l’anomalie ; une explication la plus précise possible du problème rencontré ; si possibles les étapes pour reproduire le problème ; un lien vers le site / la page en question ;
    Si vous pensez avoir résolu vous même le bug (...)

Sur d’autres sites (5200)

  • How to detect the silence at the end of an audio file ?

    1er janvier 2024, par Ali Akber

    I am trying to detect silence at the end of an audio file.
    
I have made some progress with ffmpeg library. Here I used silencedetect to list all the silences in an audio file.

    



    ffmpeg -i audio.wav -af silencedetect=n=-50dB:d=0.5 -f null - 2> /home/aliakber/log.txt


    



    Here is the output of the command :

    



    —With silence at the front and end of the audio file—

    



    [silencedetect @ 0x1043060] silence_start: 0.484979
[silencedetect @ 0x1043060] silence_end: 1.36898 | silence_duration: 0.884
[silencedetect @ 0x1043060] silence_start: 2.57298
[silencedetect @ 0x1043060] silence_end: 3.48098 | silence_duration: 0.908
[silencedetect @ 0x1043060] silence_start: 4.75698
size=N/A time=00:00:05.56 bitrate=N/A


    



    —Without silence at the front and end of the audio file—

    



    [silencedetect @ 0x106fd60] silence_start: 0.353333
[silencedetect @ 0x106fd60] silence_end: 1.25867 | silence_duration: 0.905333
[silencedetect @ 0x106fd60] silence_start: 2.46533
[silencedetect @ 0x106fd60] silence_end: 3.37067 | silence_duration: 0.905333
size=N/A time=00:00:04.61 bitrate=N/A


    



    But I want something more flexible so that I can manipulate the output and do further task depending on the result.
    
I want to get the output something like true or false. If there is a certain period of silence exists at the end of the audio file it will return true and false otherwise.

    



    Can someone suggest me an easy way to achieve this ?

    


  • Converting mp3 files to ogg vorbis while retaining cover art using FFmpeg

    22 juin 2017, par refi64

    Title says it all. I’ve tried :

    ffmpeg -i 01_FFXV_OST.mp3 -c:a libvorbis 01_FFXV_OST.ogg

    but I get :

    ffmpeg version git-2017-01-22-f1214ad Copyright (c) 2000-2017 the FFmpeg developers
    
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
    
  configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libfreetype --enable-gnutls --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvidstab --enable-libwavpack --enable-nvenc
    
  libavutil      55. 44.100 / 55. 44.100
    
  libavcodec     57. 75.100 / 57. 75.100
    
  libavformat    57. 63.100 / 57. 63.100
    
  libavdevice    57.  2.100 / 57.  2.100
    
  libavfilter     6. 69.100 /  6. 69.100
    
  libavresample   3.  2.  0 /  3.  2.  0
    
  libswscale      4.  3.101 /  4.  3.101
    
  libswresample   2.  4.100 /  2.  4.100
    
  libpostproc    54.  2.100 / 54.  2.100
    
Input #0, mp3, from '01_FFXV_OST.mp3':
    
  Metadata:
    
    album           : FINAL FANTASY XV Original Soundtrack
    
    artist          : Yoko Shimomura
    
    album_artist    : SQUARE ENIX MUSIC
    
    composer        : Yoko Shimomura
    
    disc            : 1
    
    genre           : Game
    
    title           : Somnus (Instrumental Version)
    
    track           : 01
    
    date            : 2016
    
  Duration: 00:02:29.47, start: 0.023021, bitrate: 306 kb/s
    
    Stream #0:0: Audio: mp3, 48000 Hz, stereo, s16p, 301 kb/s
    
    Metadata:
    
      encoder         : LAME3.98r
    
    Stream #0:1: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 500x500 [SAR 100:100 DAR 1:1], 90k tbr, 90k tbn, 90k tbc
    
    Metadata:
    
      comment         : Cover (front)
    
Automatic encoder selection failed for output stream #0:0. Default encoder for format ogg (codec theora) is probably disabled. Please choose an encoder manually.
    
Error selecting an encoder for stream 0:0

    Adding on -c:v copy does...nothing :

    ffmpeg version git-2017-01-22-f1214ad Copyright (c) 2000-2017 the FFmpeg developers
    
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
    
  configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libfreetype --enable-gnutls --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvidstab --enable-libwavpack --enable-nvenc
    
  libavutil      55. 44.100 / 55. 44.100
    
  libavcodec     57. 75.100 / 57. 75.100
    
  libavformat    57. 63.100 / 57. 63.100
    
  libavdevice    57.  2.100 / 57.  2.100
    
  libavfilter     6. 69.100 /  6. 69.100
    
  libavresample   3.  2.  0 /  3.  2.  0
    
  libswscale      4.  3.101 /  4.  3.101
    
  libswresample   2.  4.100 /  2.  4.100
    
  libpostproc    54.  2.100 / 54.  2.100
    
Input #0, mp3, from '01_FFXV_OST.mp3':
    
  Metadata:
    
    album           : FINAL FANTASY XV Original Soundtrack
    
    artist          : Yoko Shimomura
    
    album_artist    : SQUARE ENIX MUSIC
    
    composer        : Yoko Shimomura
    
    disc            : 1
    
    genre           : Game
    
    title           : Somnus (Instrumental Version)
    
    track           : 01
    
    date            : 2016
    
  Duration: 00:02:29.47, start: 0.023021, bitrate: 306 kb/s
    
    Stream #0:0: Audio: mp3, 48000 Hz, stereo, s16p, 301 kb/s
    
    Metadata:
    
      encoder         : LAME3.98r
    
    Stream #0:1: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 500x500 [SAR 100:100 DAR 1:1], 90k tbr, 90k tbn, 90k tbc
    
    Metadata:
    
      comment         : Cover (front)
    
[ogg @ 0x2ac6e00] Unsupported codec id in stream 0
    
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
    
Stream mapping:
    
  Stream #0:1 -> #0:0 (copy)
    
  Stream #0:0 -> #0:1 (mp3 (native) -> vorbis (libvorbis))
    
    Last message repeated 1 times

    I have absolutely no clue what to do next. I’ve also tried adding -c:v copy to no avail :

    ffmpeg version git-2017-01-22-f1214ad Copyright (c) 2000-2017 the FFmpeg developers
    
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
    
  configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libfreetype --enable-gnutls --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvidstab --enable-libwavpack --enable-nvenc
    
  libavutil      55. 44.100 / 55. 44.100
    
  libavcodec     57. 75.100 / 57. 75.100
    
  libavformat    57. 63.100 / 57. 63.100
    
  libavdevice    57.  2.100 / 57.  2.100
    
  libavfilter     6. 69.100 /  6. 69.100
    
  libavresample   3.  2.  0 /  3.  2.  0
    
  libswscale      4.  3.101 /  4.  3.101
    
  libswresample   2.  4.100 /  2.  4.100
    
  libpostproc    54.  2.100 / 54.  2.100
    
Input #0, mp3, from '01_FFXV_OST.mp3':
    
  Metadata:
    
    album           : FINAL FANTASY XV Original Soundtrack
    
    artist          : Yoko Shimomura
    
    album_artist    : SQUARE ENIX MUSIC
    
    composer        : Yoko Shimomura
    
    disc            : 1
    
    genre           : Game
    
    title           : Somnus (Instrumental Version)
    
    track           : 01
    
    date            : 2016
    
  Duration: 00:02:29.47, start: 0.023021, bitrate: 306 kb/s
    
    Stream #0:0: Audio: mp3, 48000 Hz, stereo, s16p, 301 kb/s
    
    Metadata:
    
      encoder         : LAME3.98r
    
    Stream #0:1: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 500x500 [SAR 100:100 DAR 1:1], 90k tbr, 90k tbn, 90k tbc
    
    Metadata:
    
      comment         : Cover (front)
    
[ogg @ 0x2b6ce00] Unsupported codec id in stream 0
    
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
    
Stream mapping:
    
  Stream #0:1 -> #0:0 (copy)
    
  Stream #0:0 -> #0:1 (mp3 (native) -> vorbis (libvorbis))
    
    Last message repeated 1 times

    I get the same results if I change the stream order (by passing -map 0:0 -map 0:1). I’m not sure what to do next...

  • Using WebRTC to send canvas stream to peer connection

    16 août 2021, par nameless

    I'm currently trying a little project. I have a canvas I can draw in with simple strokes. Now I want to send this canvas content to a MPV player to receive it there, so something like a live stream of the canvas to another computer (in the same network), which receives the live stream via MPV.

    



    I thought about using FFMPEG to send the live stream then, but the question is how..

    



    I found WebRTC (click here) to be able to send a canvas to a peer connection as well as to a video element. Sending it to a video element also works fine, sending to a peer connection didn't work so far.

    



    However I'm still not sure how to send it to FFMPEG or something else in order to receive it on another PC.

    



    Other ideas are also welcome, its mainly about sending the live image of the canvas to another client with a static IP adress.

    



    This, by the way, is the code I tried in order to send the canvas content to a video element :

    



    var canvas = $('#can')[0];
var ctx = canvas.getContext('2d');
var stream = canvas.captureStream(60);

var video = $('#video')[0];
video.srcObject = stream;


    


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