Recherche avancée

Médias (0)

Mot : - Tags -/performance

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

Autres articles (64)

  • Le profil des utilisateurs

    12 avril 2011, par

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

  • Configurer la prise en compte des langues

    15 novembre 2010, par

    Accéder à la configuration et ajouter des langues prises en compte
    Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
    De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
    Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...)

  • 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 (...)

Sur d’autres sites (6581)

  • live video streaming not playing on dash.js player using ffmpeg, nginx-rtmp in raspberry pi

    15 août 2016, par sparks

    I am trying to stream a live video from raspberry pi & pi camera module to web browser.But the video doesn’t play.I am using Nginx-rtmp and ffmpeg to process the video. On the client side i use dash js player trying to play the video but no luck.I see the warning on the terminal

    [flv @ 0x2c3b950] Failed to update header with correct duration.
    [flv @ 0x2c3b950] Failed to update header with correct filesize.

    But i am not sure if this could be the issue. Anybody knows what might be wrong ?I don’t expect a straight answer but i am sure somebody can guide me in the right direction. Thank you in advance. Here is my set up

    Nginx.conf

    events {
     worker_connections  1024;
    }


    http     {
           include       mime.types;
           default_type  application/octet-stream;


    sendfile        on;

    keepalive_timeout  65;

    server {
       listen       80;
       server_name 192.168.1.114 localhost;
       location / {
           root   /var/www;
           index  index.html index.htm;
       }


       location /dash {
           root /var/www;
           add_header Cache-Control no-cache;
       }

        location /dash.js{
           root /var/www;
         }

        location /hls {
          types {
           application/vnd.apple.mpegurl m3u8;
           video/mp2t ts;
         }

         root /var/www;
         index index.html;
         add_header Cache-Control no-cache;
       }

       location /rtmpcontrol{
           rtmp_control all;
        }

       location /rtmpstat{
           rtmp_stat all;
        }

       #error_page  404              /404.html;


              error_page   500 502 503 504  /50x.html;
       location = /50x.html {
           root   html;
       }

          }
    rtmp {
      server {
       listen 1935;

       chunk_size 4000;

       application rtmp {
           live on;
           hls on;
           dash on;
           dash_path /var/www/dash;
           hls_path /var/www/hls;
       }
     }
    }

    baseline.html

       
       
       
       

       
       

       
       

       
       <code class="echappe-js">&lt;script src='http://stackoverflow.com/feeds/tag/dash.all.js'&gt;&lt;/script&gt;
    &lt;script&gt;<br />
           function getUrlVars() {<br />
               var vars = {};<br />
               var parts = window.location.href.replace(/[?&amp;amp;]+([^=&amp;amp;]+)=([^&amp;amp;]*)/gi, function(m,key,value) {<br />
                   vars[key] = value;<br />
               });<br />
               return vars;<br />
           }<br />
    <br />
           function startVideo() {<br />
               var vars = getUrlVars(),<br />
                   url = &quot;http://192.168.1.114:80/dash/stream.mpd&quot;,<br />
                   video,<br />
                   context,<br />
                   player;<br />
    <br />
               if (vars &amp;amp;&amp;amp; vars.hasOwnProperty(&quot;url&quot;)) {<br />
                   url = vars.url;<br />
               }<br />
    <br />
               video = document.querySelector(&quot;.dash-video-player video&quot;);<br />
               context = new Dash.di.DashContext();<br />
               player = new MediaPlayer(context);<br />
    <br />
               player.startup();<br />
    <br />
               player.attachView(video);<br />
               player.setAutoPlay(false);<br />
    <br />
               player.attachSource(url);<br />
           }<br />
       &lt;/script&gt;

    &lt;body onload=&quot;startVideo()&quot;&gt;

    How i grab and push video stream

    raspivid -w 640 -h 480 -fps 25 -t 0 -b 1800000 -o - | ffmpeg -y -f h264 -i - -vcodec libx264  -f flv -rtmp_buffer 100 -rtmp_live live rtmp://localhost:1935/rtmp/stream

    When i run the above command, i see the following on the terminal

       ffmpeg version N-81256-gd3426fb Copyright (c) 2000-2016 the FFmpeg developers
     built with gcc 4.9.2 (Raspbian 4.9.2-10)
     configuration: --enable-gpl --enable-libx264 --enable-nonfree
     libavutil      55. 28.100 / 55. 28.100
     libavcodec     57. 51.100 / 57. 51.100
     libavformat    57. 44.100 / 57. 44.100
     libavdevice    57.  0.102 / 57.  0.102
     libavfilter     6. 49.100 /  6. 49.100
     libswscale      4.  1.100 /  4.  1.100
     libswresample   2.  1.100 /  2.  1.100
     libpostproc    54.  0.100 / 54.  0.100
    Input #0, h264, from 'pipe:':
     Duration: N/A, bitrate: N/A
       Stream #0:0: Video: h264 (High), yuv420p, 640x480, 25 fps, 25 tbr, 1200k tbn, 50 tbc
    [tcp @ 0x2c3c850] Connection to tcp://localhost:1935 failed (Connection refused), trying next address
    [libx264 @ 0x2c50d80] using cpu capabilities: ARMv6 NEON
    [libx264 @ 0x2c50d80] profile High, level 3.0
    [libx264 @ 0x2c50d80] 264 - core 148 r2705 3f5ed56 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    [flv @ 0x2c3b950] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
    Output #0, flv, to 'rtmp://localhost:1935/rtmp/stream':
     Metadata:
       encoder         : Lavf57.44.100
       Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p, 640x480, q=-1--1, 25 fps, 1k tbn, 25 tbc
       Metadata:
         encoder         : Lavc57.51.100 libx264
       Side data:
         cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    Stream mapping:
     Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
    ^Cmmal: Aborting program.0 size=     930kB time=00:00:45.44 bitrate= 167.7kbits/s speed=1.03x    

    [flv @ 0x2c3b950] Failed to update header with correct duration.
    [flv @ 0x2c3b950] Failed to update header with correct filesize.
    frame= 1197 fps= 26 q=-1.0 Lsize=     976kB time=00:00:47.76 bitrate= 167.5kbits/s speed=1.04x    
    video:953kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.484349%
    [libx264 @ 0x2c50d80] frame I:5     Avg QP:18.91  size:  3600
    [libx264 @ 0x2c50d80] frame P:299   Avg QP:21.38  size:  1486
    [libx264 @ 0x2c50d80] frame B:893   Avg QP:20.62  size:   574
    [libx264 @ 0x2c50d80] consecutive B-frames:  0.4%  0.0%  1.0% 98.6%
    [libx264 @ 0x2c50d80] mb I  I16..4: 10.1% 87.1%  2.8%
    [libx264 @ 0x2c50d80] mb P  I16..4:  3.8%  7.4%  0.0%  P16..4: 34.2%  2.1%  1.5%  0.0%  0.0%    skip:51.0%
    [libx264 @ 0x2c50d80] mb B  I16..4:  0.2%  0.3%  0.0%  B16..8: 20.1%  0.4%  0.0%  direct: 3.8%  skip:75.1%  L0:48.6% L1:50.9% BI: 0.6%
    [libx264 @ 0x2c50d80] 8x8 transform intra:68.1% inter:97.0%
    [libx264 @ 0x2c50d80] coded y,uvDC,uvAC intra: 10.1% 27.5% 1.8% inter: 2.0% 12.9% 0.1%
    [libx264 @ 0x2c50d80] i16 v,h,dc,p: 18% 20%  9% 53%
    [libx264 @ 0x2c50d80] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 11% 58%  2%  2%  1%  2%  1%  1%
    [libx264 @ 0x2c50d80] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 22% 26% 30%  3%  4%  4%  6%  2%  2%
    [libx264 @ 0x2c50d80] i8c dc,h,v,p: 66% 18% 15%  1%
    [libx264 @ 0x2c50d80] Weighted P-Frames: Y:1.7% UV:1.3%
    [libx264 @ 0x2c50d80] ref P L0: 58.2%  2.2% 25.5% 14.1%  0.1%
    [libx264 @ 0x2c50d80] ref B L0: 81.7% 13.3%  5.0%
    [libx264 @ 0x2c50d80] ref B L1: 93.6%  6.4%
    [libx264 @ 0x2c50d80] kb/s:162.87
    Exiting normally, received signal 2.

    On my var/www/dash directory

    stream-0.m4a  stream-19200.m4a  stream-29200.m4a  
    stream-9600.m4a    stream-init.m4a  stream.mpd      stream-raw.m4v
    stream-0.m4v  stream-19200.m4v  stream-29200.m4v  stream-9600.m4v    stream-init.m4v  stream-raw.m4a
  • Fluent-ffmpeg "not a suitable output format"

    5 septembre 2015, par J4G

    I’m using the fluent-ffmpeg module for Node.js to convert audio files. I have a .mp3 file that I’d like to convert to .wma

    Here’s what that looks like :

    var proc = new ffmpeg({
      source: 'file.mp3',
      nolog: false
    }).toFormat('wma')                                                
     .saveToFile('file.wma', function(stdout, stderr)
    {                                                
       console.log(stderr);
    });

    Unfortunately, I get the error :

    Requested output format 'wma' is not a suitable output format

    This is the entire error log :

    ffmpeg version 0.8.9-4:0.8.9-0ubuntu0.12.04.1, Copyright (c) 2000-2013 the Libav developers
     built on Nov  9 2013 19:25:10 with gcc 4.6.3
    *** THIS PROGRAM IS DEPRECATED ***
    This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
    Input #0, mp3, from 'song_downloads/You Suffer.mp3':
     Metadata:
       title           : You Suffer
       artist          : Napalm Death
       album           : Scum
       genre           : Death Metal
       track           : 12
       date            : 1987
     Duration: 00:00:04.98, start: 0.000000, bitrate: 381 kb/s
       Stream #0.0: Audio: mp3, 44100 Hz, stereo, s16, 193 kb/s
    Requested output format 'wma' is not a suitable output format

    I know this isn’t an ffmpeg issue because

    ffmpeg -i file.mp3 file.wma

    Works fine. Any ideas ?

  • node js (or other) as streaming server

    20 décembre 2013, par Abdul Ali

    Apologies if a simple question but cannot find anything helpful . Am also new to the streaming concept.

    Goal is to set up a server which keeps on listening for data on a speific port. The user will be sending sequence of images from their iphone (# of images unknown).

    when the data is receieved, ffmpeg should start to get data from that port (as input) and send those images to ffserver to be streamed as a live video.

    did try Nginx-Rtmp module but the iphone developer have informed that in iphone, only ip and port can be given to open a stream (and no other part of the url can be given e.g. streamname and application name in case of nginx-rtmp)

    Any help and guide will be appreciatd that what can be used to set up a free and very simple sever that simply receives the images which ffmpeg can capture and send to ffserver .