[Live-devel] setAuxilliaryReadHandler: Core dumps

[Vimal Garg]

Hi,

I have created a subclass of MediaSink which process the received data. I am
using this instead of FileSink.

I am able to see MultiFramedRTPSource::doGetNextFrame1() getting called
before I start playing streams. It also calls my afterGettingFrame()
and continuePlaying() function. All this works fine.

Problem starts when it get into doEventLoop(). I see
MultiFramedRTPSource::doGetNextFrame1() getting called but it does not call
the afterGetting(this); (at line number 195).

I investigated and found that packet->rtpMarkerBit(); in
 MPEG4ESVideoRTPSource::processSpecialHeader() always returns 0 because of
which it does not get into the loop.

Could you please help me understand what should be done to make this work.

On Tue, Dec 1, 2009 at 12:16 PM, Ross Finlayson <finlayson at live555.com>wrote:

> I believe it is possible to have the streams in buffer but not clear how? I
>> went through RTPSource class which has a function pointer
>> setAuxilliaryReadHandler(). As I understand this is for registering a
>> handler for processing RTP read.
>>
>
> "setAuxilliaryReadHandler()" is a hack that should not be used.  I don't
> think anyone uses it anymore, and it will likely be removed from a future
> release of the code.  In any case, it provides access to raw RTP packets
> (i.e., including RTP headers) - and that's *not* what you want.
>
>
>
>  After long discussion and research we had decided to make use of live555
>> stack as it is widely used (and tested). I have gone through the
>> openRTSP.cpp which actually saves all the streams to a file. I do not want
>> to record streams in a file and read from the file as this will have
>> latency.
>>
>
> OK, then your solution is straightforward.  You need to write your own
> subclass of "MediaSink" that does whatever you want to do with the incoming
> data, and use that *instead of* "FileSink".
>
> (Or, if your incoming stream is video-only (or audio-only), then you could
> use the "-v" (or "-a") option to "openRTSP", and pipe it into a separate
> application (that reads from stdin) that processes it.)
> --
>
> Ross Finlayson
> Live Networks, Inc.
> http://www.live555.com/
> _______________________________________________
> live-devel mailing list
> live-devel at lists.live555.com
> http://lists.live555.com/mailman/listinfo/live-devel
>
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