[Live-devel] (no subject)

[Ross Finlayson]

>       1. There are two memory leaks here.I write 
>my programs following the test***streamer and 
>free the memory as the following:
>       if (sessionState.sink != NULL) sessionState.sink->stopPlaying();
>
>       Medium::close(sessionState.rtcpInstance);
>       Medium::close(sessionState.sink);
>       Medium::close(sessionState.source);
>
>       Medium::close(sms);
>       Medium::close(rtspServer);
>       delete sessionState.rtpGroupsock;
>
>       delete sessionState.rtcpGroupsock;
>
>       if(scheduler) delete scheduler;
>       if(env) env->reclaim();

What you are doing is correct (although, if you 
are planning to rerun the same code once again, 
you could reuse the same "UsageEnvironment" and 
"TaskScheduler" objects; i.e., you would not need 
to delete them).  However, why don't you just run 
your code in its own process (i.e., as a separate 
application)?  That way, all of the memory that 
you allocated will automatically be reclaimed.

>
>       If I just create the 
>sinkÅAsourcÅArtspserver etc and don't 
>startplaying,there will be no memory leak.But if 
>I add startplaying,after I close the 
>server,there will be two memory leaks :
>
>      
>       Detected memory leaks!
>Dumping objects ->
>{594258} normal block at 0x003CC818, 32 bytes long.
>  Data: <l G             > 6C 0F 47 00 00 00 00 00 00 00 00 00 00 00 00 00
>{594245} normal block at 0x00B49008, 32 bytes long.
>
>  Data: <l G             > 6C 0F 47 00 00 00 00 00 00 00 00 00 00 00 00 00
>
>       I am sorry that It may be difficult for 
>you to find out what resulted in this,but can 
>you give me some suggestion?

Does 64 bytes of extra memory get allocated each 
time you run your code (i.e., in a loop), or does 
only 64 extra bytes get allocated, no matter how 
many times you run your code?  If it's the latter 
case, then the problem doesn't seem serious.

However, you may be able to use "valgrind" (if 
you're running on a Unix or Linux system) to help 
track down where this memory allocation is coming 
from.

>
>       2.Sometimes esapcically after I restart 
>teh server,when I start my server and use VLC to 
>play th stream,the server receives the 
>"DECRIBE"ÅA"SETUP" and "PLAY"command ok, but VLC 
>just doesn't play the stream and it tears down a 
>few seconds later.I don't know the reason.I use 
>openRTSP and try to save the stream into a 
>file.Things are the same.The connection between 
>the RTSP server and openRTSP is ok,but openRTSP 
>can't receive any data,so the file is empty. 
>Then I restart the server for one or more 
>times,everything goes all right.
>
>         I rarely run into this problem with 
>testprogs or OnDemandRTSPServer.Therefore,there 
>must be some reason that I have not found in my 
>program.Would you please help me?


Unfortunately not; I can (in general) help only 
with the unmodified supplied code.

-- 

Ross Finlayson
Live Networks, Inc.
http://www.live555.com/
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