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Mot : - Tags -/media

Autres articles (23)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

  • Other interesting software

    13 avril 2011, par

    We don’t claim to be the only ones doing what we do ... and especially not to assert claims to be the best either ... What we do, we just try to do it well and getting better ...
    The following list represents softwares that tend to be more or less as MediaSPIP or that MediaSPIP tries more or less to do the same, whatever ...
    We don’t know them, we didn’t try them, but you can take a peek.
    Videopress
    Website : http://videopress.com/
    License : GNU/GPL v2
    Source code : (...)

Sur d’autres sites (7237)

  • ffmpeg : Video is not start streaming in instance

    23 juillet 2019, par Sachin Shah

    I have setup the streaming code which use the ffmpeg. It works perfectly fine in my local system.

    Version in local

    ffmpeg version 3.4.6-0ubuntu0.18.04.1 Copyright (c) 2000-2019 the FFmpeg developers
    
built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)

    Version in live

    ffmpeg version 3.4.6 Copyright (c) 2000-2019 the FFmpeg developers
    
built with gcc 7 (GCC)

    GCC versions

    Local

    gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0

    Live

    gcc (GCC) 7.3.1 20180303 (Red Hat 7.3.1-5)

    Code which works fine in my local

    var args = [
    
            '-y',
    
            '-re',
    
            '-i', `${filePath}`,
    
            '-listen', '1',
    
            '-s', '640x480',
    
            '-codec:a', 'aac -strict experimental',
    
            '-b:a', '44.1k',
    
            '-preset', 'superfast',
    
            '-r', '15',
    
            '-b:v', '1000k',
    
            '-tune', 'zerolatency',
    
            '-c:a', 'aac',
    
            '-ar', '44100',
    
            '-c:v', 'libx264',
    
            '-f', 'flv', streamURL
    
  ];                     
    
  let ffmpeg = spawn(`ffmpeg`, args);
    
  ffmpeg.on('exit', (statusCode) => {
    
       console.log("statusCode ::::::::::::::::::::::::::::::::: ", statusCode);
    
       if (statusCode === 0) {
    
             console.log('conversion successful')
    
       }
    
   })
    

    
   ffmpeg.stderr.on('data', (err) => {
    
      console.log('err:', new String(err))
    
   })
    

    
   ffmpeg.on('close', function () {
    
      console.log('finished');
    
   });

    Error :

    ffmpeg -re -i '{MyS3URL}' -c:v libx264 -preset superfast -tune zerolatency -c:a aac -ar 44100 -f flv rtmp://{{instanceIp}}/live/myStream
    

    
err: [String: 'ffmpeg version 3.4.6']
    
err: [String: ' Copyright (c) 2000-2019 the FFmpeg developers']
    
err: [String: '\n']
    
err: [String: '  built with gcc 7 (GCC)\n']
    
err: [String: '  configuration: \n']
    
err: [String: '  libavutil      55. 78.100 / 55. 78.100\n']
    
err: [String: '  libavcodec     57.107.100 / 57.107.100\n']
    
err: [String: '  libavformat    57. 83.100 / 57. 83.100\n  libavdevice    
    
57. 10.100 / 57. 10.100\n  libavfilter     6.107.100 /  6.107.100\n  
    
libswscale      4.  8.100 /  4.  8.100\n  libswresample   2.  9.100 /  
    
2.  9.100\nUnrecognized option \'tune\'.\nError splitting the argument 
    
list: Option not found\n']
    
statusCode :::::::::::::::::::::::::::::::::  1
    
finished

    Note :
    As you can see I have console the URL which I have made dynamic URL.

    In addition, I directly got statusCode = 1. When I paste the same URL in my local termial and hit the enter then my streaming starts.

    So the question is why it is not working in live ?

  • ffmpeg itsoffset doesnt apply offset to mp4

    26 juillet 2019, par brux

    The following command mixes an mp4 and an mp3 together, keeping the audio from the mp4.

    ffmpeg -i video.mp4 -i audio.mp3 -map 0:v -c:v copy -filter_complex '[0:a][1:a]amix[aout]' -map '[aout]' -shortest out.mp4

    The command works as expected.

    Now I want to offset the mp4 file (both the audio and video stream of the mp4) so that there is a delay of 500ms at the start of the mp4, here is my command :

    ffmpeg -itsoffset 00:00:00.500 -i video.mp4 -i audio.mp3 -map 0:v -c:v copy -filter_complex '[0:a][1:a]amix[aout]' -map '[aout]' -shortest out.mp4

    This doesnt work as expected, the output doesnt have the expected delay of 500ms at the start of the mp4 streams. It appears the output is just the same as the first command I ran.

    The version of ffmpeg I am using is :

    ffmpeg version n4.0-39-gda39990

    Here are the files I’m using :

    video.mp4

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/video.mp4':
    
      Metadata:
    
        major_brand     : mp42
    
        minor_version   : 0
    
        compatible_brands: isommp42
    
        creation_time   : 2019-07-26T03:28:49.000000Z
    
        com.android.version: 8.0.0
    
      Duration: 00:00:07.64, start: 0.000000, bitrate: 20534 kb/s
    
        Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), yuvj420p(pc, smpte170m), 1920x1080, 20966 kb/s, SAR 1:1 DAR 16:9, 29.70 fps, 29.75 tbr, 90k tbn, 180k tbc (default)
    
        Metadata:
    
          rotate          : 270
    
          creation_time   : 2019-07-26T03:28:49.000000Z
    
          handler_name    : VideoHandle
    
        Side data:
    
          displaymatrix: rotation of 90.00 degrees
    
        Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 96 kb/s (default)
    
        Metadata:
    
          creation_time   : 2019-07-26T03:28:49.000000Z
    
          handler_name    : SoundHandle

    audio.mp3

    Input #0, mp3, from '/storage/emulated/0/audio.mp3':
    
      Metadata:
    
        album           : Sunflower (Spider-Man: Into the Spider-Verse) - Single
    
        composer        : Louis Bell, Carter Lang, Austin Richard Post, Billy Walsh & Khalif Malik Ibin Shaman Brown
    
        genre           : Hip-Hop/Rap
    
        copyright       : This Compilation ℗ 2018 Republic Records, a division of UMG Recordings, Inc.
    
        title           : Sunflower (Spider-Man: Into the Spider-Verse)
    
        artist          : Post Malone & Swae Lee
    
        album_artist    : Post Malone & Swae Lee
    
        track           : 01/01
    
        TYER            : 2018-10-18T07:00:00Z
    
      Duration: 00:02:38.07, start: 0.000000, bitrate: 325 kb/s
    
        Stream #0:0: Audio: mp3, 44100 Hz, stereo, fltp, 320 kb/s
    
        Stream #0:1: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 1400x1400 [SAR 300:300 DAR 1:1], 90k tbr, 90k tbn, 90k tbc
    
        Metadata:
    
          comment         : Cover (front)

  • How to Write to AVI with OpenCV Python on Windows 10

    29 juillet 2019, par Novak

    I want to write properly formed frames of video data to an AVI.

    All attempts fail.

    What I end up with, after long efforts of debugging, are *.avi files of non-zero length in the desired directory, which will not play with any of multiple video players already installed on my system.

    Please note : High quality answers will be COMPLETE and DETAIL oriented. In particular, questions about writing video with OpenCV tend to generate drive-by responses including little more than another four-letter code to stick in fourcc. Answers which do so without also telling me at a minimum what file extension to use, what file type it will generate, and why it is expected to work over what I give above are unhelpful.

    Here are the salient details of the system :

    Operating System : Windows 10
    Language : Python 3.7, with Anaconda 3
    OpenCV : 4.1.0

    Here Is What I Have Done/Tried :

    Installed FFMPEG as per this link, restarted Anaconda, and verified ffmpeg (ffmpeg -version) from within Anaconda, with the following result :

    ffmpeg version N-94396-g47b6ca0b02 Copyright (c) 2000-2019 the FFmpeg developers
    
built with gcc 9.1.1 (GCC) 20190716
    
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. 32.100 / 56. 32.100
    
libavcodec     58. 55.100 / 58. 55.100
    
libavformat    58. 30.100 / 58. 30.100
    
libavdevice    58.  9.100 / 58.  9.100
    
libavfilter     7. 58.100 /  7. 58.100
    
libswscale      5.  6.100 /  5.  6.100
    
libswresample   3.  6.100 /  3.  6.100
    
libpostproc    55.  6.100 / 55.  6.100

    Multiple variations on the theme of :

    import cv2
    
fourcc = cv2.VideoWriter_fourcc(*"DIVX")
    
vidout = cv2.VideoWriter(baseDir + "videos\\foo.avi", fourcc, 30, (530, 476))
    

    
for frame in frames:
    
    <do stuff="stuff" to="to" generate="generate" foo="foo">
    
    cv2.imshow("foo", foo)
    
    vidout.write(foo)
    
vidout.release()
    
</do>

    Verified shape, dtype, and general viability of output data with cv2.imshow("foo", foo)

    Results : Unplayable AVI files

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