(Open ceremony of Politecnico di Bari Academic Year 2011/2012)
Riga 23: Riga 23:
 
==Elephants Dream HD Adaptive Streaming==
 
==Elephants Dream HD Adaptive Streaming==
 
<absHTML>
 
<absHTML>
<iframe width="640" height="480" src="http://193.204.59.68:8030/embed/0183f347cf1a0c1fb6b0a919b1ce62a1" frameborder="0" allowfullscreen scrolling="no" marginwidth="0"></iframe>
+
<iframe width="640" height="480" src="http://193.204.59.123:8030/embed/0183f347cf1a0c1fb6b0a919b1ce62a1" frameborder="0" allowfullscreen scrolling="no" marginwidth="0"></iframe>
</absHTML>
 
 
 
==D90 HD Adaptive streaming (encoded live)==
 
<absHTML>
 
<iframe width="640" height="480" src="http://193.204.59.68:8030/embed/ef0b0b5b1f685fd8e36cb1c9bd1387b8" frameborder="0" allowfullscreen scrolling="no" marginwidth="0"></iframe>
 
 
</absHTML>
 
</absHTML>

Revisione 11:51, 12 Apr 2012

Adaptive Live Video Streaming

Adaptive live streaming represents a key advancement with respect to classic progressive download streaming such as the one employed by YouTube. With adaptive streaming the video source bit-rate is automatically adapted in real-time to match the time-varying bandwidth available to the user who can experience the maximum quality.

The following videos are distributed by employing a prototype implementation of the Quality Adaptation Control algorithm which is described in the paper:

  • L. De Cicco, S. Mascolo, V. Palmisano
    Feedback Control for Adaptive Live Video Streaming
    in Proc. of ACM Multimedia Systems Conference, San Jose, CA, Feb 23-25,2011 (PDF)

The video source is adapted by following the stream-switching (or multiple bit-rate) approach: the video source is available at different bit-rates and resolutions and a controller switches from one video version to match the available bandwidth while avoiding playback interruptions and re-buffering events.

Requirements:

  • Flash player v10.0 or greater
  • In order to experience the maximum quality (720p) a dual core 2.4GHz processor or better is recommended

The 2011/2012 Academic Year opening ceremony of Politecnico di Bari


Elephants Dream HD Adaptive Streaming

Adaptive Live Video Streaming[edit]

Adaptive live streaming represents a key advancement with respect to classic progressive download streaming such as the one employed by YouTube. With adaptive streaming the video source bit-rate is automatically adapted in real-time to match the time-varying bandwidth available to the user who can experience the maximum quality.

The following videos are distributed by employing a prototype implementation of the Quality Adaptation Control algorithm which is described in the paper:

The video source is adapted by following the stream-switching (or multiple bit-rate) approach: the video source is available at different bit-rates and resolutions and a controller switches from one video version to match the available bandwidth while avoiding playback interruptions and re-buffering events.

Requirements:

The 2011/2012 Academic Year opening ceremony of Politecnico di Bari[edit]


Elephants Dream HD Adaptive Streaming[edit]