(→Quality Adaptation for 640x480 pixels Video over IP Applications) |
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| (6 versioni intermedie di 2 utenti non mostrate) | |||
| Riga 1: | Riga 1: | ||
[[Category:Research]] | [[Category:Research]] | ||
| − | =Quality Adaptation for 640x480 pixels Video over IP | + | =Quality Adaptation for 640x480 pixels Video (Conference) over IP = |
| + | ==BEST with "Angels & Demons" video sequence== | ||
<p style="font-size:1.5em;"> '''BEST''' (Bandwidth Estimation) video application over a time-varying variable bandwidth, RTT=100ms. Video resolution: 640x480, 25 FPS. | <p style="font-size:1.5em;"> '''BEST''' (Bandwidth Estimation) video application over a time-varying variable bandwidth, RTT=100ms. Video resolution: 640x480, 25 FPS. | ||
<br> | <br> | ||
| − | + | Techical features: H.264 codec, Bandwidth Estimation, Adaptation, Congestion Control, FEC</p> | |
<absHTML> | <absHTML> | ||
| + | <a name="ad"></a> | ||
<div id="container"><a href="http://www.macromedia.com/go/getflashplayer">Get the Flash Player</a> to see this player.</div> | <div id="container"><a href="http://www.macromedia.com/go/getflashplayer">Get the Flash Player</a> to see this player.</div> | ||
<script type="text/javascript" src="/video/mediaplayer/swfobject.js"></script> | <script type="text/javascript" src="/video/mediaplayer/swfobject.js"></script> | ||
| Riga 19: | Riga 21: | ||
<img src="/video/bands.jpg" alt="Bands" style="float: left;" /> | <img src="/video/bands.jpg" alt="Bands" style="float: left;" /> | ||
<ul> | <ul> | ||
| − | <li><a href="#" onclick="javascript:player.sendEvent('seek', 55)">Go to 60s (when bandwidth drops from 1000 kbps | + | <li><a href="#ad" onclick="javascript:player.sendEvent('seek', 55)">Go to 60s (when bandwidth drops from 1000 kbps to 384 kbps)</a></li> |
| − | <li><a href="#" onclick="javascript:player.sendEvent('seek', 115)">Go to 120s (when bandwidth drops from 384 kbps | + | <li><a href="#ad" onclick="javascript:player.sendEvent('seek', 115)">Go to 120s (when bandwidth drops from 384 kbps to 240 kbps)</a></li> |
| − | <li><a href="#" onclick="javascript:player.sendEvent('seek', 175)">Go to 180s (when bandwidth goes up from 240 kbps | + | <li><a href="#ad" onclick="javascript:player.sendEvent('seek', 175)">Go to 180s (when bandwidth goes up from 240 kbps to 384 kbps)</a></li> |
| − | <li><a href="#" onclick="javascript:player.sendEvent('seek', 235)">Go to 240s (when bandwidth goes up from 384 kbps | + | <li><a href="#ad" onclick="javascript:player.sendEvent('seek', 235)">Go to 240s (when bandwidth goes up from 384 kbps to 1000 kbps)</a></li> |
| − | <li><a href="#" onclick="javascript:player.sendEvent('seek', 295)">Go to 300s (when bandwidth goes up from 1000 kbps/ | + | <li><a href="#ad" onclick="javascript:player.sendEvent('seek', 295)">Go to 300s (when bandwidth goes up from 1000 kbps to 2000 kbps)</a></li> |
| + | </ul> | ||
| + | </absHTML> | ||
| + | <br class="clearall" /> | ||
| + | |||
| + | ==BEST with "Sunflower" video sequence== | ||
| + | <p style="font-size:1.5em;"> '''BEST''' (Bandwidth Estimation) video application over a time-varying variable bandwidth, RTT=100ms. Video taken from [http://media.xiph.org/ldv/pub/test_sequences/1080p/ media.xiph.org], resolution rescaled to 640x480, 25 FPS. | ||
| + | <br> | ||
| + | Techical features: H.264 codec, Bandwidth Estimation, Adaptation, Congestion Control, FEC</p> | ||
| + | <absHTML> | ||
| + | <a name="sunflower"></a> | ||
| + | <div id="container2"><a href="http://www.macromedia.com/go/getflashplayer">Get the Flash Player</a> to see this player.</div> | ||
| + | <script type="text/javascript" src="/video/mediaplayer/swfobject.js"></script> | ||
| + | <script type="text/javascript"> | ||
| + | var s1 = new SWFObject("/video/mediaplayer/player.swf","ply2","640","560","9","#FFFFFF"); | ||
| + | s1.addParam("allowfullscreen","true"); | ||
| + | s1.addParam("allowscriptaccess","always"); | ||
| + | s1.addVariable("plugins", "googlytics-1"); | ||
| + | s1.addParam("flashvars","&file=/video/best_sunflower_sd.flv&image=/video/best_sunflower_sd.jpg&autostart=false&start=0&duration=420"); | ||
| + | s1.write("container2"); | ||
| + | var player2 = document.getElementById('ply2'); | ||
| + | </script> | ||
| + | <img src="/video/bands.jpg" alt="Bands" style="float: left;" /> | ||
| + | <ul> | ||
| + | <li><a href="#sunflower" onclick="javascript:player2.sendEvent('seek', 55)">Go to 60s (when bandwidth drops from 1000 kbps to 384 kbps)</a></li> | ||
| + | <li><a href="#sunflower" onclick="javascript:player2.sendEvent('seek', 115)">Go to 120s (when bandwidth drops from 384 kbps to 240 kbps)</a></li> | ||
| + | <li><a href="#sunflower" onclick="javascript:player2.sendEvent('seek', 175)">Go to 180s (when bandwidth goes up from 240 kbps to 384 kbps)</a></li> | ||
| + | <li><a href="#sunflower" onclick="javascript:player2.sendEvent('seek', 235)">Go to 240s (when bandwidth goes up from 384 kbps to 1000 kbps)</a></li> | ||
| + | <li><a href="#sunflower" onclick="javascript:player2.sendEvent('seek', 295)">Go to 300s (when bandwidth goes up from 1000 kbps to 2000 kbps)</a></li> | ||
</ul> | </ul> | ||
</absHTML> | </absHTML> | ||
<br class="clearall" /> | <br class="clearall" /> | ||
BEST (Bandwidth Estimation) video application over a time-varying variable bandwidth, RTT=100ms. Video resolution: 640x480, 25 FPS.
Techical features: H.264 codec, Bandwidth Estimation, Adaptation, Congestion Control, FEC
BEST (Bandwidth Estimation) video application over a time-varying variable bandwidth, RTT=100ms. Video taken from media.xiph.org, resolution rescaled to 640x480, 25 FPS.
Techical features: H.264 codec, Bandwidth Estimation, Adaptation, Congestion Control, FEC
BEST (Bandwidth Estimation) video application over a time-varying variable bandwidth, RTT=100ms. Video resolution: 640x480, 25 FPS.
Techical features: H.264 codec, Bandwidth Estimation, Adaptation, Congstion control, FEC