Re: Client Side Rate Control Revisited

Thanks Greg. And does it matter where I issue this SDB request? That is,
right now I am doing this in rtspclnt.cpp as part of UpdateStatistics()
where (for testing purposes) I am just checking if the bandwidth goes below
a certain threshold and then calling SetDeliveryBandwidth(). I am asking
this because I observed that the calls to SetDeliveryBandwidth() are
mostly done in hxsm.cpp i.e. in a context more closely related to the
actual media source(s) than rtspclnt.cpp. Is this relevant to worry about?

Thanks again!

Mahmoud

On Wed, Aug 13, 2008 at 6:20 PM, Greg Wright <[email protected]> wrote:

>  Mahmoud Hammoud wrote:
>
>> Greg, All,
>>  I'm working on the client side rate control problem based on a prediction
>> of bad/no connection; as was earlier suggested, I managed to use
>> RTSPClientProtocol::SetDeliveryBandwidth in order to tell the server to send
>> at a desired (faster) bit rate on demand. My question is the following:
>>  In the code I read something about "thin streaming", and namely that the
>> highest value that the pipe can support would be the aggregate bandwidth of
>> the sources. And indeed, after leaving fast start, the client tells the
>> server to send at the aggregate bandwidth of the sources (also using
>> SetDeliveryBandwidth), which implies that we are streaming "thin" and that
>> any subsequent SetDeliveryBandwidth requests would be useless because the
>> server will never send faster than the aggregate rate. Is this correct? How
>> do I disable thin streaming, so that the highest supported bit rate is the
>> actual bandwidth of the connection? What factor in general decides that we
>> stream thin or not?
>>
>
> the server should always honor the SDB message unless server side
> rate control is in use. That is how I understand it anyway.
>
> --greg.
>
>  Thanks a lot,
>>  Mahmoud
>>
>
>

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