Recherche avancée

Médias (0)

Mot : - Tags -/presse-papier

Aucun média correspondant à vos critères n’est disponible sur le site.

Autres articles (25)

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

  • 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 (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

Sur d’autres sites (3905)

  • FFmpeg rtp streaming opus file problems

    22 avril 2017, par Yuriy Aizenberg

    i have the next situation.

    1. Have file on remote VPS server.
    2. I want that this file (opus codec) can be accessible through RTP on my android phone.

    3. I tried ffmpeg with next command :

      ffmpeg -ar 44800 -i bon_jovi_loverboy.opus -acodec libopus -ac 1 -ab 96k -vn -f rtp rtp://127.0.0.1:5004 -loglevel 56

    But got next error :

    bon_jovi_loverboy.opus: Invalid data found when processing input

    Full log :

    root@cs82932 :/home/rstream/rtstream/src# ffmpeg -ar 44800 -i bon_jovi_loverboy.opus -acodec libopus -ac 1 -ab 96k -vn -f rtp rtp ://127.0.0.1:5004 -loglevel 56
    ffmpeg version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2000-2017 the FFmpeg developers
    built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1 16.04.4) 20160609
    configuration : —prefix=/usr —extra-version=0ubuntu0.16.04.1 —build-suffix=-ffmpeg —toolchain=hardened —libdir=/usr/lib/x86_64-linux-gnu —incdir=/usr/include/x86_64-linux-gnu —cc=cc —cxx=g++ —enable-gpl —enable-shared —disable-stripping —disable-decoder=libopenjpeg —disable-decoder=libschroedinger —enable-avresample —enable-avisynth —enable-gnutls —enable-ladspa —enable-libass —enable-libbluray —enable-libbs2b —enable-libcaca —enable-libcdio —enable-libflite —enable-libfontconfig —enable-libfreetype —enable-libfribidi —enable-libgme —enable-libgsm —enable-libmodplug —enable-libmp3lame —enable-libopenjpeg —enable-libopus —enable-libpulse —enable-librtmp —enable-libschroedinger —enable-libshine —enable-libsnappy —enable-libsoxr —enable-libspeex —enable-libssh —enable-libtheora —enable-libtwolame —enable-libvorbis —enable-libvpx —enable-libwavpack —enable-libwebp —enable-libx265 —enable-libxvid —enable-libzvbi —enable-openal —enable-opengl —enable-x11grab —enable-libdc1394 —enable-libiec61883 —enable-libzmq —enable-frei0r —enable-libx264 —enable-libopencv
    libavutil 54. 31.100 / 54. 31.100
    libavcodec 56. 60.100 / 56. 60.100
    libavformat 56. 40.101 / 56. 40.101
    libavdevice 56. 4.100 / 56. 4.100
    libavfilter 5. 40.101 / 5. 40.101
    libavresample 2. 1. 0 / 2. 1. 0
    libswscale 3. 1.101 / 3. 1.101
    libswresample 1. 2.101 / 1. 2.101
    libpostproc 53. 3.100 / 53. 3.100
    Splitting the commandline.
    Reading option ’-ar’ ... matched as option ’ar’ (set audio sampling rate (in Hz)) with argument ’44800’.

    Reading option ’-i’ ... matched as input url with argument ’bon_jovi_loverboy.opus’.

    Reading option ’-acodec’ ... matched as option ’acodec’ (force audio codec (’copy’ to copy stream)) with argument ’libopus’.

    Reading option ’-ac’ ... matched as option ’ac’ (set number of audio channels) with argument ’1’.

    Reading option ’-ab’ ... matched as option ’ab’ (audio bitrate (please use -b:a)) with argument ’96k’.

    Reading option ’-vn’ ... matched as option ’vn’ (disable video) with argument ’1’.

    Reading option ’-f’ ... matched as option ’f’ (force format) with argument ’rtp’.

    Reading option ’rtp ://127.0.0.1:5004’ ... matched as output url.

    Reading option ’-loglevel’ ... matched as option ’loglevel’ (set logging level) with argument ’56’.

    Finished splitting the commandline.
    Parsing a group of options : global .
    Applying option loglevel (set logging level) with argument 56.

    Successfully parsed a group of options.

    Parsing a group of options : input url bon_jovi_loverboy.opus.
    Applying option ar (set audio sampling rate (in Hz)) with argument 44800.
    Successfully parsed a group of options.
    Opening an input file : bon_jovi_loverboy.opus.

    [AVIOContext @ 0x965e60] Statistics : 36389 bytes read, 0 seeks
    bon_jovi_loverboy.opus : Invalid data found when processing input

    What wrong ? Thanks

    UPD

    I update ffmpeg and streaming looks successfully.

        ffmpeg -stream_loop -1 -i 4a6u7-ptl2w.opus -acodec libopus -ac 1 -ab 
    
           96k -vn -f rtp rtp://95.213.195.192:5004/f.opus
    
ffmpeg version 3.2.4-1~16.04.york1 Copyright (c) 2000-2017 the FFmpeg developers
    
  built with gcc 5.4.1 (Ubuntu 5.4.1-5ubuntu2~16.04.york1) 20170210
    
  configuration: --prefix=/usr --extra-version='1~16.04.york1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
    
  libavutil      55. 34.101 / 55. 34.101
    
  libavcodec     57. 64.101 / 57. 64.101
    
  libavformat    57. 56.101 / 57. 56.101
    
  libavdevice    57.  1.100 / 57.  1.100
    
  libavfilter     6. 65.100 /  6. 65.100
    
  libavresample   3.  1.  0 /  3.  1.  0
    
  libswscale      4.  2.100 /  4.  2.100
    
  libswresample   2.  3.100 /  2.  3.100
    
  libpostproc    54.  1.100 / 54.  1.100
    
Input #0, ogg, from '4a6u7-ptl2w.opus':
    
  Duration: 00:02:34.21, start: 0.000000, bitrate: 69 kb/s
    
    Stream #0:0: Audio: opus, 48000 Hz, stereo, fltp
    
    Metadata:
    
      ENCODER         : Lavc57.77.100 libopus
    
Output #0, rtp, to 'rtp://95.213.195.192:5004/f.opus':
    
  Metadata:
    
    encoder         : Lavf57.56.101
    
    Stream #0:0: Audio: opus (libopus), 48000 Hz, mono, flt, 96 kb/s
    
    Metadata:
    
      encoder         : Lavc57.64.101 libopus
    
SDP:
    
v=0
    
o=- 0 0 IN IP4 127.0.0.1
    
s=No Name
    
c=IN IP4 95.213.195.192
    
t=0 0
    
a=tool:libavformat 57.56.101
    
m=audio 5004 RTP/AVP 97
    
b=AS:96
    
a=rtpmap:97 opus/48000/2
    

    
Stream mapping:
    
  Stream #0:0 -> #0:0 (opus (native) -> opus (libopus))
    
Press [q] to stop, [?] for help
    
size=   44893kB time=00:52:18.12 bitrate= 117.2kbits/s speed=56.5x

    But when i try to connect by rtp from local PC (VLC Player) i get the exception :

             core error: socket bind error: Cannot assign requested address
    
         core error: open of `rtp://95.213.195.192:5004/f.opus' failed

    When i try ffplay on remote pc (same where ffmpeg) :

        ffplay rtp://95.213.195.192:5004/f.opus
    

    
ffplay version 3.2.4-1~16.04.york1 Copyright (c) 2003-2017 the FFmpeg developers
    
  built with gcc 5.4.1 (Ubuntu 5.4.1-5ubuntu2~16.04.york1) 20170210
    
  configuration: --prefix=/usr --extra-version='1~16.04.york1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
    
  libavutil      55. 34.101 / 55. 34.101
    
  libavcodec     57. 64.101 / 57. 64.101
    
  libavformat    57. 56.101 / 57. 56.101
    
  libavdevice    57.  1.100 / 57.  1.100
    
  libavfilter     6. 65.100 /  6. 65.100
    
  libavresample   3.  1.  0 /  3.  1.  0
    
  libswscale      4.  2.100 /  4.  2.100
    
  libswresample   2.  3.100 /  2.  3.100
    
  libpostproc    54.  1.100 / 54.  1.100
    
Segmentation fault

    Can you help me ? Thanks

    95.213.195.192 - IP of my remote server with file

  • FFMPEG to create an MPEG-DASH stream with VP8

    24 avril 2017, par Kenneth Worden

    I’m trying to use FFMPEG to stream a live video feed from my webcam /dev/video0. Following scattered tutorials and scarce documentation (is this a known problem for the encoding community ?) I arrived at the following bash script :

    #!/bin/bash
    

    
ffmpeg \
    
    -y \
    
    -f v4l2 \
    
        -i /dev/video0 \
    
        -s 640x480 \
    
        -input_format mjpeg \
    
        -r 24 \
    
    -map 0:0 \
    
    -pix_fmt yuv420p \
    
    -codec:v libvpx \
    
        -s 640x480 \
    
        -threads 4 \
    
        -b:v 50k \
    
        -tile-columns 4 \
    
        -frame-parallel 1 \
    
        -keyint_min 24 -g 24 \
    
    -f webm_chunk \
    
        -header "stream.hdr" \
    
        -chunk_start_index 1 \
    
    stream_%d.chk &
    

    
sleep 2
    

    
ffmpeg \
    
    -f webm_dash_manifest -live 1 \
    
    -i stream.hdr \
    
    -c copy \
    
    -map 0 \
    
    -f webm_dash_manifest -live 1 \
    
        -adaptation_sets "id=0,streams=0" \
    
        -chunk_start_index 1 \
    
        -chunk_duration_ms 1000 \
    
        -time_shift_buffer_depth 30000 \
    
        -minimum_update_period 60000 \
    
    stream_manifest.mpd

    When I run this script, my webcam light turns on, the stream.hdr and stream_manifest.mpd files are written, and chunks start to be created (i.e. stream_1.chk, stream_2.chk, etc...). However, FFMPEG throws the following error :

    Could not write header for output file #0 (incorrect codec parameters
     ?) : Invalid data found when processing input

    I will explain what I think I am doing with this script, and hopefully this will expose any errors in my thinking.

    First, we invoke FFMPEG to use Video for Linux 2 (v4l2) to read from my webcam (/dev/video0) of a resolution 640x480. The input format is mjpeg with a framerate of 24fps.

    I then declare that FFMPEG should "map" (copy) the video stream output by v4l2 to a file. I specify the pixel format (YUV420P) and use libvpx (VP8 encoding) to encode the video stream. I set the size to be 640x480, use 4 threads, set the bitrate to be 50kbps, do some magic with tile-columns and frame-parallel options, and set the I-frames to be 24 frames apart.

    I then create a stream.hdr file. The starting index is 1. This command continues to run infinitely until I kill it, grabbing new video from my webcam and outputting it into chunks.

    I then sleep for 2 seconds to give the previous command time to generate a header file.

    And that’s really it. The next invocation of FFMPEG simply creates the MPEG-DASH manifest file given the header generated in the previous step.

    So what’s going on ? Why can I not view the video in a web browser (I’m using Dash.js) ? I serve the manifest, header, and chunks on a Node.js server so that trivial issue is not the problem.

    Edit : Here is my full console output.

    ffmpeg version 3.0.7-0ubuntu0.16.10.1 Copyright (c) 2000-2017 the FFmpeg developers
    
  built with gcc 6.2.0 (Ubuntu 6.2.0-5ubuntu12) 20161005
    
  configuration: --prefix=/usr --extra-version=0ubuntu0.16.10.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librubberband --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-chromaprint --enable-libx264
    
  libavutil      55. 17.103 / 55. 17.103
    
  libavcodec     57. 24.102 / 57. 24.102
    
  libavformat    57. 25.100 / 57. 25.100
    
  libavdevice    57.  0.101 / 57.  0.101
    
  libavfilter     6. 31.100 /  6. 31.100
    
  libavresample   3.  0.  0 /  3.  0.  0
    
  libswscale      4.  0.100 /  4.  0.100
    
  libswresample   2.  0.101 /  2.  0.101
    
  libpostproc    54.  0.100 / 54.  0.100
    
[video4linux2,v4l2 @ 0x55847e244ea0] The driver changed the time per frame from 1/24 to 1/30
    
[mjpeg @ 0x55847e245c00] Changing bps to 8
    
Input #0, video4linux2,v4l2, from '/dev/video0':
    
  Duration: N/A, start: 64305.102081, bitrate: N/A
    
    Stream #0:0: Video: mjpeg, yuvj422p(pc, bt470bg/unknown/unknown), 640x480, -5 kb/s, 30 fps, 30 tbr, 1000k tbn, 1000k tbc
    
Codec AVOption frame-parallel (Enable frame parallel decodability features) specified for output file #0 (stream_%d.chk) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
    
Codec AVOption tile-columns (Number of tile columns to use, log2) specified for output file #0 (stream_%d.chk) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
    
[swscaler @ 0x55847e24b720] deprecated pixel format used, make sure you did set range correctly
    
[libvpx @ 0x55847e248a20] v1.5.0
    
Output #0, webm_chunk, to 'stream_%d.chk':
    
  Metadata:
    
    encoder         : Lavf57.25.100
    
    Stream #0:0: Video: vp8 (libvpx), yuv420p, 640x480, q=-1--1, 50 kb/s, 30 fps, 30 tbn, 30 tbc
    
    Metadata:
    
      encoder         : Lavc57.24.102 libvpx
    
    Side data:
    
      unknown side data type 10 (24 bytes)
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mjpeg (native) -> vp8 (libvpx))
    
Press [q] to stop, [?] for help
    
frame=   21 fps=0.0 q=0.0 size=N/A time=00:00:00.70 bitrate=N/A dup=5 drop=frame=   36 fps= 35 q=0.0 size=N/A time=00:00:01.20 bitrate=N/A dup=5 drop=frame=   51 fps= 33 q=0.0 size=N/A time=00:00:01.70 bitrate=N/A dup=5 drop=ffmpeg version 3.0.7-0ubuntu0.16.10.1 Copyright (c) 2000-2017 the FFmpeg developers
    
  built with gcc 6.2.0 (Ubuntu 6.2.0-5ubuntu12) 20161005
    
  configuration: --prefix=/usr --extra-version=0ubuntu0.16.10.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librubberband --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-chromaprint --enable-libx264
    
  libavutil      55. 17.103 / 55. 17.103
    
  libavcodec     57. 24.102 / 57. 24.102
    
  libavformat    57. 25.100 / 57. 25.100
    
  libavdevice    57.  0.101 / 57.  0.101
    
  libavfilter     6. 31.100 /  6. 31.100
    
  libavresample   3.  0.  0 /  3.  0.  0
    
  libswscale      4.  0.100 /  4.  0.100
    
  libswresample   2.  0.101 /  2.  0.101
    
  libpostproc    54.  0.100 / 54.  0.100
    
Input #0, webm_dash_manifest, from 'stream.hdr':
    
  Metadata:
    
    encoder         : Lavf57.25.100
    
  Duration: N/A, bitrate: N/A
    
    Stream #0:0: Video: vp8, yuv420p, 640x480, SAR 1:1 DAR 4:3, 30 fps, 30 tbr, 1k tbn, 1k tbc (default)
    
    Metadata:
    
      webm_dash_manifest_file_name: stream.hdr
    
      webm_dash_manifest_track_number: 1
    
Output #0, webm_dash_manifest, to 'stream_manifest.mpd':
    
  Metadata:
    
    encoder         : Lavf57.25.100
    
    Stream #0:0: Video: vp8, yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=2-31, 30 fps, 30 tbr, 1k tbn, 1k tbc (default)
    
    Metadata:
    
      webm_dash_manifest_file_name: stream.hdr
    
      webm_dash_manifest_track_number: 1
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (copy)
    
Could not write header for output file #0 (incorrect codec parameters ?): Invalid data found when processing input
    
frame=   67 fps= 33 q=0.0 size
    
frame=   82 fps= 32 q=0.0 size=N/A time=00:00:02.73 bitrate=N/A dup=5 drop=
    
frame=   97 fps= 32 q=0.0 size=N/A time=00:00:03.23 bitrate=N/A dup=5 drop=
    
frame=  112 fps= 32 q=0.0 size=N/A time=00:00:03.73 bitrate=N/A dup=5 ...

  • Merge commit 'fc322d6a70189da24dbd445c710bb214eb031ce7'

    3 mai 2017, par Clément Bœsch
    Merge commit 'fc322d6a70189da24dbd445c710bb214eb031ce7'

    * commit 'fc322d6a70189da24dbd445c710bb214eb031ce7' :
    
  tta : Convert to the new bitstream reader
    
  mlp : Convert to the new bitstream reader
    
  unary : Convert to the new bitstream reader
    

    This merge is a noop, see
    
http://ffmpeg.org/pipermail/ffmpeg-devel/2017-April/209609.html
    

    Merged-by : Clément Bœsch <u@pkh.me>

Navigation