Re: [Linphone-developers] Bug: Linphone-3 crashes when using bluetooth headset as audio device

[Aymeric Moizard]

On Mon, 13 Oct 2008, Xuân Baldauf wrote:

> Hello,

Hi,

> I'd like to use linphone as softphone using a normal bluetooth headset.
> However, linphone crashes when I attempt to do that.
>
>
>    How to reproduce
>
>   1. Start linphone-3 (compiled form linphone-3.0.0).
>   2. Go to View/Preferences/Multimedia Settings
>   3. Change "Ring device" to "PASND: bluetooth"
>   4. Press the Ring sound "Play" button.
>
>
>      Expected result
>
> Linphone plays some sound.
>
>
>      Actual result
>
> Linphone crashes.
>
> I've repeated this using gdb and I get follow stack trace:
>
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 0xb64a26c0 (LWP 25540)]
> pasnd_open (device=0x8290580, devnumber=<value optimized out>, bits=16,
> stereo=1, rate=44100, minsz=0xbf9425e0) at pasnd.c:155
> 155         outputParameters.suggestedLatency = Pa_GetDeviceInfo(
> outputParameters.device )->defaultLowOutputLatency;

The stereo mode is not supported by this module. I think you have
to replace oldphone.wav with a non stereo file.

Also, if it still crash with a mono file, can you try to provide other 
information? When you reach the backtrace below, do some "print"
 print "outputParameters"
 print "outputParameters.device"

can you also modify the code so that we know if Pa_GetDeviceInfo is
returning a NULL result? which might be the case here...

tks
Aymeric


> (gdb) bt
> #0  pasnd_open (device=0x8290580, devnumber=<value optimized out>,
> bits=16, stereo=1, rate=44100, minsz=0xbf9425e0) at pasnd.c:155
> #1  0xb7fc3f74 in pasnd_write_preprocess (f=0x8489bc0) at pasnd.c:459
> #2  0xb7fb8878 in ms_filter_preprocess (f=0x81e7c04, t=0x83bfaa0) at
> msfilter.c:208
> #3  0xb7fb9fa2 in ms_ticker_attach (ticker=0x83bfaa0, f=0x8394490) at
> msticker.c:130
> #4  0xb7fbfb21 in ring_start_with_cb (file=0x8202a88
> "/usr/local/share/sounds/linphone/rings/oldphone.wav", interval=2000,
> sndcard=0x81f08b0, func=0xb7f97f80 <notify_end_of_ring>,
> user_data=0x81e6bf8) at audiostream.c:407
> #5  0xb7f99614 in linphone_core_preview_ring (lc=0x81e6bf8,
> ring=0x8202a88 "/usr/local/share/sounds/linphone/rings/oldphone.wav",
> func=0x8050e20 <linphone_gtk_end_of_ring>, userdata=0x83c4d50) at
> linphonecore.c:1761
> #6  0x0805296b in linphone_gtk_play_ring_file (w=0x83c4d50) at
> propertybox.c:167
> #7  0xb78e72a4 in g_cclosure_marshal_VOID__VOID () from
> /usr/lib/libgobject-2.0.so.0
> #8  0xb78d9c3b in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
>
> I hope that helps. :-)
>
> ciao,
> Xuân.
>
> P.S.: It appears that all "pasnd" sound devices show the same behaviour.