Re: [Live-devel] Getting jitter value

2023-12-01 Thread Ross Finlayson 


> On Dec 2, 2023, at 5:19 AM, Ayik Ahmet  wrote:
> 
> Hello, thank you for responses they helped me a lot. However I came up with a 
> new question. I would like to get number of clients.

The way I’d do this is not by looking at RTCP ’transmission statistics' 
(because they’re not always reliable/up-to-date, because some clients might not 
send back RTCP “RR”s, or they might get lost or blocked).  Instead, I’d simply 
count the number of “ClientSession” objects.  (Note, *not* the number of 
“ClientConnection” objects, because it is possible for a RTSP client to close 
its TCP connection even while it is still receiving RTP packets, or even to use 
more than one TCP connection for the same client session.)

Just call:
yourServer->numClientSessions()
to get this count.


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


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Re: [Live-devel] Getting jitter value

2023-12-01 Thread Ayik Ahmet 
Hello, thank you for responses they helped me a lot. However I came up with a 
new question. I would like to get number of clients. It works partially okay, 
For example, when I connect new client, I can see this increment suddenly, when 
I disconnect client I see effect after 10-20 seconds. Lets say still 
acceptable. But when there is no client I get random values. I assume it is 
because there is no RTPSink alive anymore. and I could not find anyway to check 
if my created RTPSink is alive. I m storing its pointer but when there is no 
client, it is neither valid nor null, So I cant determine status if RTPSink.

Thanks In Advance
Ozgur Ayik

From: live-devel  on behalf of Ross 
Finlayson 
Sent: Thursday, November 30, 2023 11:46 AM
To: LIVE555 Streaming Media - development & use 
Subject: Re: [Live-devel] Getting jitter value



> On Nov 30, 2023, at 11:27 PM, Ayik Ahmet  wrote:
>
> Hello, I want to get jitter from my RTPSink, but I cant get 
> RTPTransmissionStatsDB by using
>
> RTPTransmissionStatsDB& transmissionStatsDB() const { return 
> *fTransmissionStatsDB; }
>
> because RTPTransmissionStatsDB doesnot have any contructor. How can I obtain 
> this class instance to get jitter?

I think you’re misunderstanding the meaning of the "transmissionStatsDB()” 
function.  It’s not used to create an object; instead, it simply returns a 
reference to an object that already exists.  I.e., you can just do something 
like:
RTPTransmissionStatsDB& db = myRTPSink->transmissionStatsDB();
RTPTransmissionStatsDB::iterator iter(db);
while ((RTPTransmissionStats* stats = iter.next()) != NULL) {
unsigned jitter = stats->jitter(); // etc.
}


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


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Re: [Live-devel] Getting jitter value

2023-11-30 Thread Ross Finlayson 


> On Nov 30, 2023, at 11:27 PM, Ayik Ahmet  wrote:
> 
> Hello, I want to get jitter from my RTPSink, but I cant get 
> RTPTransmissionStatsDB by using 
> 
> RTPTransmissionStatsDB& transmissionStatsDB() const { return 
> *fTransmissionStatsDB; }
> 
> because RTPTransmissionStatsDB doesnot have any contructor. How can I obtain 
> this class instance to get jitter?

I think you’re misunderstanding the meaning of the "transmissionStatsDB()” 
function.  It’s not used to create an object; instead, it simply returns a 
reference to an object that already exists.  I.e., you can just do something 
like:
RTPTransmissionStatsDB& db = myRTPSink->transmissionStatsDB();
RTPTransmissionStatsDB::iterator iter(db);
while ((RTPTransmissionStats* stats = iter.next()) != NULL) {
unsigned jitter = stats->jitter(); // etc.
}


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


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