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Autres articles (44)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • 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 (9458)

  • How should I add a transparent watermark.png over my RTMP h264 stream with ffmpeg ?

    16 juin 2013, par RoelandP

    I have a Raspberry Pi with the new camera module hooked up to (in this case) Bambuser. You can see the stream here, it's from a windmill in The Netherlands (camera position will be better within a few weeks).

    I succesfully have the stream running, but now I want to add an image (alpha transparent png) on top of the input-stream which is piped to ffmpeg to be streamed to Bambuser.

    I currently use the following command (user specific details wiped out) to succesfully stream the input from the Raspberry Camera module (it's great, HD & all, hardware rendering) to Bambuser, following the great tutorial by Slickstreamer :

    raspivid -t 999999999 -w 960 -h 540 -fps 25 -b 500000 -o - | ffmpeg  -i - -vcodec copy -an -metadata title="STREAM NAME" -f flv rtmp://USER_X.fme.bambuser.com/b-fme/USER_STREAM_KEY_X

    I followed the docs about ffmpeg and it seems to me I should use the '-vf'-command to apply the 'movies :' filter, like so :

    raspivid -t 999999999 -w 960 -h 540 -fps 25 -b 500000 -o - | ffmpeg  -i - -vf "movie='/home/USER/watermark.png' [logo]; [in][logo] overlay=main_w-overlay_w-10:10 [out]" -vcodec copy -an -metadata title="STREAM NAME" -f flv rtmp://USER_X.fme.bambuser.com/b-fme/USER_STREAM_KEY_X

    and various other -vf commands, like '-vf vflip' or '-vf mandelbrot'. But it doesn't seem to work, as the stream just shows the direct input from the Raspberry Camera.

    This is the output when started with the following -vf command :

    raspivid -t 999999999 -w 960 -h 540 -fps 25 -b 500000 -o - | ffmpeg -i - -vcodec copy -vf 'movie=0:png:/home/USER/watermark.png [watermark];[in] [watermark]overlay=0:0:1[out]' -an -metadata title="STREAM NAME" -f flv rtmp://USER_X.fme.bambuser.com/b-fme/USER_STREAM_KEY_X
    ffmpeg version N-54036-g6c4516d Copyright (c) 2000-2013 the FFmpeg developers
  built on Jun 15 2013 XX:XX with gcc 4.6 (Debian 4.6.3-14+rpi1)
  configuration : 
  libavutil      52. 35.101 / 52. 35.101
  libavcodec     55. 16.100 / 55. 16.100
  libavformat    55.  8.102 / 55.  8.102
  libavdevice    55.  2.100 / 55.  2.100
  libavfilter     3. 77.101 /  3. 77.101
  libswscale      2.  3.100 /  2.  3.100
  libswresample   0. 17.102 /  0. 17.102
[h264 @ 0x1917cc0] max_analyze_duration 5000000 reached at 5000000 microseconds
Input #0, h264, from 'pipe :' :
  Duration : N/A, bitrate : N/A
    Stream #0:0 : Video : h264 (High), yuv420p, 960x540, 25 fps, 25 tbr, 1200k tbn, 50 tbc
Output #0, flv, to 'rtmp ://USER_X.fme.bambuser.com/b-fme/USER_STREAM_KEY_X' :
  Metadata :
    title : STREAM NAME
    encoder : Lavf55.8.102
    Stream #0:0 : Video : h264 ([7][0][0][0] / 0x0007), yuv420p, 960x540, q=2-31, 25 fps, 1k tbn, 1200k tbc
Stream mapping :
  Stream #0:0 -> #0:0 (copy)
frame= 2344 fps= 27 q=-1.0 size=    4827kB time=00:01:33.72 bitrate= 421.9kbits/s

    As mentioned above, other -vf filters also don't seem to apply on the output stream on Bambuser, I think I fundamentally do something wrong here.

    1. Should I map the Raspivid-stream and map the image 'watermark.png' on top of that ? Would that be the solution ? Anyone experience with this ?

    Thank you very much for your thoughts in advance.

  • Chrome extension Use FFMpeg

    28 décembre 2014, par Villie

    I am developing a chrome extension where I have to record the video stream from chromes desktopCapture API. I was initially using whammy.js but the video quality was poor for higher resolutions.
    Now I am planning to use ffmpeg to record the video stream by writing a nacl module.
    While going through the blogs I found out that chrome has included ffmpeg for playing out videos.

    So is there an api where I can use chrome’s ffpeg from nacl to record video of the video stream ?

    Tks

  • CommonJS/Browserify support fix

    4 janvier 2015, par luis-almeida
    CommonJS/Browserify support fix

    "jquery.fileupload.js" was still missing the cJS module definition.
    
It was added to "jquery.ui.widget" as well since it is a direct dependency.

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