iaxclient-devel

[Iaxclient-devel] answering incoming calls simultaneously

[bugra H. <bug...@gm...>]

Hi

My application auto-answers incoming calls and records incoming audio data
to wav files. The problem is when i select & answer a call, i cant receive
audio data from previous call.My main event callback is similar to this:
http://pastebin.com/f51d6e84c

it seems like iaxc_select_call function (which is in iaxclient_lib.c)
deselect old call. i tried commenting out deselection part but i couldnt get
audio data from 2 different sources at the same time. here is related part
of iaxc_select_call function:
http://pastebin.com/f2db54785


Is it possible to receive audio data from different calls at the same time?
Am i doing something wrong while accepting calls? maybe missing an essential
function call?


perhaps i am approaching the problem from a wrong point. Am i supposed to
select a call and after a few miliseconds select another active call and so
on?

I am out of ideas so any help is appreciated

Re: [Iaxclient-devel] answering incoming calls simultaneously

[Mihai B. <mi...@ha...>]

On May 11, 2009, at 11:45 AM, bugra HASBEK wrote:

> Hi
>
> Is it possible to receive audio data from different calls at the  
> same time? Am i doing something wrong while accepting calls? maybe  
> missing an essential function call?

As far as I know, the iaxclient library cannot receive audio data from  
multiple calls simultaneously - this is a limitation of the library.
However, I have been out of touch with iaxclient for a while now, so  
things might have changed.

Mihai

Re: [Iaxclient-devel] answering incoming calls simultaneously

[bugra H. <bug...@gm...>]

Thanks for the quick reply Mihai

I found a way to receive audio from different sources simultaneously. It
seems like  iaxclient library is capable of receiving audio data from
different sources but audio events of unselected calls were dropped for some
reason

Audio data follows below path:
User event callback() <=  iaxc_post_event <= iaxc_do_audio_callback() <=
handle_audio_event()

Unselected calls are dropped in handle_audio_event function. I commented
dropping part, as a result i got audio data from different calls in my main
event callback. This is probably not desirable in a normal application but
since i dont actually play incoming sound, it works for me


here is required changes in case someone needs to receive from different
sources simultaneously:

in iaxclient_lib.c:

static void handle_audio_event(struct iax_event *e, int callNo)

> {
> //// some code here
>
>     // BUGRA H: below part causes problem for listening multiple calls
> //     if ( callNo != selected_call )
> //     {
> //         /* drop audio for unselected call? */
> //         return;
> //     }
>
> /// some code here
>
> }
>
>
>