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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hello all,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I’m interested in implementing a multi-rate streaming
media mechanism on videolan. I have done so using Real Media’s
Helix platform, but for various reasons I am interested in doing this here as
well. Could someone tell me what would be required as far as
implementation to have videolan increase and decrease the bit rate for a stream
based on the packet loss or delay at the current resolution? By stream,
it is desired that the audio and video be separated and the bit rate for these
streams be modulated independently.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I envision that a media file would need to be encoded at several
bit rates, for example one high resolution, and another low resolution.
The client starts off subscribing for a file at the highest resolution. At
the onset of congestion it notifies the server to decrease its resolution via
an RTSP message. The server would then start streaming the lower
resolution file to the client. I’m trying to get started in the
right direction; if someone could give me an idea of what would be required to
implement the said mechanism, or what sections of the code this would involve,
that would be great.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Bryan Willman<o:p></o:p></span></font></p>
<p class=MsoNormal><st1:place w:st="on"><st1:PlaceName w:st="on"><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>Drexel</span></font></st1:PlaceName><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> <st1:PlaceType
w:st="on">University</st1:PlaceType></span></font></st1:place><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
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