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Autres articles (100)

  • XMP PHP

    13 mai 2011, par

    Dixit Wikipedia, XMP signifie :
    Extensible Metadata Platform ou XMP est un format de métadonnées basé sur XML utilisé dans les applications PDF, de photographie et de graphisme. Il a été lancé par Adobe Systems en avril 2001 en étant intégré à la version 5.0 d’Adobe Acrobat.
    Étant basé sur XML, il gère un ensemble de tags dynamiques pour l’utilisation dans le cadre du Web sémantique.
    XMP permet d’enregistrer sous forme d’un document XML des informations relatives à un fichier : titre, auteur, historique (...)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

  • 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 (...)

Sur d’autres sites (11248)

  • Update .m3u8 playlist while live streaming

    28 juillet 2022, par Juan Trejos

    Im using nginx-rtmp-module to create a RTMP server and I'm using hls directives to create the playlist.

    


    hls on;
hls_path /var/www/html/cam/;
hls_fragment 10;
hls_nested on;
hls_playlist_length 7d;
hls_cleanup off;
hls_continuous on;
hls_fragment_naming system;


    


    Now, I want to update manually the .m3u8 playlist file from this :

    


    #EXTM3U
#EXT-X-VERSION:3
#EXT-X-MEDIA-SEQUENCE:0
#EXT-X-TARGETDURATION:12
#EXTINF:10.000,
1658833177814.ts
#EXTINF:10.000,
1658833187826.ts
#EXTINF:10.000,
1658833197826.ts


    


    to this, when the streaming is "on line" :

    


    #EXTM3U
#EXT-X-VERSION:3  
#EXT-X-MEDIA-SEQUENCE:0
#EXT-X-TARGETDURATION:12
#EXTINF:10.000,
1658833197826.ts


    


    if I do it when there is no live streaming, that works, but if i do it when there is a live streaming, the .m3u8 file becames as the original after the server finish the creation of the last chunk. Even if i delete the .m3u8 file, it is recreated as the original one.

    


    I've also tryed it using ffmpeg instead of hls directives without success, and looked this solution but 😥😥

    


  • Get frame from live video stream

    10 avril 2013, par rickster

    I am streaming live video from my camera on my android phone to my computer using the MediaRecorder class.

    recorder.setCamera(mCamera);
    
recorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
    
recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);          
    
recorder.setOutputFile(uav_UDP_Client.pfd.getFileDescriptor());                     
    
recorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);

    That's the basic idea. So I would like to show this stream in real time. My plan is to use FFMpeg to turn the latest frame into a .bmp and show the .bmp on my C# program every time there is a new frame.

    The problem is there is no header until I stop the recording. So I can not use FFMpeg unless there is a header. I've looked at spydroid and using RTP but I do not want to use this method for various reasons.

    Any ideas on how I can do this easily ?

  • Framerate live streaming webm with dash and ffmpeg

    14 mai 2016, par Jones

    I am streaming a live video with ffmpeg and dash.js using
    these instructions. It works well except that the video is playing at a too high framerate. No framerate is specified in the manifest.
    Creating the Chunks :

    SET VP9_LIVE_PARAMS=-speed 6 -threads 8 -static-thresh 0 -max-intra-rate 300 -deadline realtime -lag-in-frames 0 -error-resilient 1
    
ffmpeg -re -r 25 -i tcp://localhost:8891 ^
    
-map 0:0 ^
    
  -pix_fmt yuv420p ^
    
  -c:v libvpx-vp9 ^
    
    -s 800x600 -keyint_min 25 -g 25 %VP9_LIVE_PARAMS% ^
    
    -f webm_chunk ^
    
    -header "webm_live/glass_360.hdr" ^
    
    -chunk_start_index 1 ^
    
  webm_live\glass_360_%%d.chk ^

    Creating the Manifest :

    ffmpeg ^
    
  -f webm_dash_manifest -live 1 ^
    
   -r 25 ^
    
  -i webm_live/glass_360.hdr ^
    
  -c copy ^
    
  -map 0 ^
    
  -r 25 ^
    
  -framerate 25 ^
    
  -f webm_dash_manifest -live 1 ^
    
    -adaptation_sets "id=0,streams=0" ^
    
    -chunk_start_index 1 ^
    
    -chunk_duration_ms 1000 ^
    
    -time_shift_buffer_depth 7200 ^
    
    -minimum_update_period 7200 ^
    
  webm_live/glass_live_manifest.mpd

    Manifest :

    <?xml version="1.0" encoding="UTF-8"?>
    
<mpd xmlns="urn:mpeg:DASH:schema:MPD:2011" type="dynamic" minbuffertime="PT1S" profiles="urn:mpeg:dash:profile:isoff-live:2011" availabilitystarttime="2016-03-30T13:02:53Z" timeshiftbufferdepth="PT7200S" minimumupdateperiod="PT7200S">
    
<period start="PT0S">
    
<adaptationset mimetype="video/webm" codecs="vp9" bitstreamswitching="true" subsegmentalignment="true" subsegmentstartswithsap="1">
    
<contentcomponent type="video"></contentcomponent>
    
<segmenttemplate timescale="1000" duration="1000" media="glass_$RepresentationID$_$Number$.chk" startnumber="1" initialization="glass_$RepresentationID$.hdr"></segmenttemplate>
    
<representation bandwidth="1000000" width="800" height="600" codecs="vp9" mimetype="video/webm" startswithsap="1"></representation>
    
</adaptationset>
    
</period>
    
</mpd>

    Any Ideas how to fix this ?

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