[Live-devel] I need to access OnDemandServerMediaSubsession::setSDPLinesFromRTPSink() from my derived class.

[Steve Ha]

Hi Ross,

You are right when mention the complexity of RTP extension support.
That is why I just simply ask you to put a little effort by allowing
outside of live555 to set the
extension bit, and the rest is my part, of course I would do any way out of
scope of the
library.

Thank you for your adding 'protected' to my requested function,


On Thu, Dec 5, 2019 at 12:29 AM Ross Finlayson <finlayson at live555.com>
wrote:

>
>
> > On Dec 4, 2019, at 10:05 PM, Steve Ha <steveha at u2sr.com> wrote:
> >
> > Hi Ross,
> >
> > In order to avoid modifying live555 library directly I have some needs:
> >
> > 1) I want to access to function 'setSDPLinesFromRTPSink' for overridding
> sdpLines() of class OnDemandServerMediaSubsession:
> > private:
> > void setSDPLinesFromRTPSink(RTPSink* rtpSink, FramedSource* inputSource,
> unsigned estBitrate);
> >
> > Can you make it accesible by the derived classes?
>
> Yes.  This function is now “protected:” in the latest release of the code
> (2019.12.04).
>
>
> > 2) class MultiFramedRTPSink has various public functions for setting RTP
> header's properties such as:
> >    setMarkerBit, setTimestamp, setSpecialHeaderWord,
> setFrameSpecificHeaderWord, etc.
> >    But it does not any function to setHeaderExtensionBit.
> >    Can you kindly support one more function to setHeaderExtensionBit ?
>
> No, because we currently don’t support RTP extension headers (either
> sending or receiving).  (Adding a RTP extension header involves a lot more
> than just setting a bit.)
>
> I might consider supporting RTP extension headers in the future if someone
> could make a good case for this (especially if it involves support for an
> IETF standard).
>
>
> Ross Finlayson
> Live Networks, Inc.
> http://www.live555.com/
>
>
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> live-devel at lists.live555.com
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>
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