Hello list,
I am facing an issue with pjsua libraries, for which I could not find any suitable solution in the archives. I would really appreciate it if any of the experts could provide some help in resolving this issue. Because of this issue, I have not been able to play back media during call so far.
I have downloaded and built the latest version of PJSIP (1.7). After building PJSIP successfully on a compaq nx9010 laptop running Fedora 12, I tested the availability of audio devices using the auddemo application inside pjproject/pjsip-apps/bin/samples/i686-pc-linux-gnu directory path. And here is the output of auddemo application:
Found 4 devices:
0: PA [ALI 5451: ALI 5451 (hw:0,0)] (2/2)
1: PA [pulse] (32/32)
2: PA [dmix] (0/2)
3: PA [default] (32/32)
I was able to successfully playback the .wav files provided under pjproject/tests/pjsua/wavs directory path using auddemo application.
But when I tried placing a call to the SIP client application on this laptop, from another instance of the same application on another laptop, I see the following error:
16:51:45.147 tsx0xb6306334 State changed from Trying to Proceeding, event=TX_MSG
16:51:45.147 dlg0xb6305b2c Transaction tsx0xb6306334 state changed to Proceeding
16:51:45.147 inv0xb6305b2c SDP negotiation done, status=0
16:51:45.147 pjsua_call.c Call 0: remote NAT type is 0 (Unknown)
16:51:45.148 strm0xb630ce2c VAD temporarily disabled
16:51:45.148 rtp.c pjmedia_rtp_session_init: ses=0xb630e6ac, default_pt=0, ssrc=0x40d84d87
16:51:45.148 rtp.c pjmedia_rtp_session_init: ses=0xb630ecd0, default_pt=0, ssrc=0x40d84d87
16:51:45.149 stream.c Stream strm0xb630ce2c created
16:51:45.149 strm0xb630ce2c Encoder stream started
16:51:45.149 strm0xb630ce2c Decoder stream started
16:51:45.149 resample.c resample created: high qualiy, large filter, in/out rate=8000/16000
16:51:45.149 resample.c resample created: high qualiy, large filter, in/out rate=16000/8000
16:51:45.149 pjsua_media.c Media updates, stream #0: PCMU (sendrecv)
16:51:45.150 pjsua_media.c Error retrieving default audio device parameters: Unable to find default audio device (PJMEDIA_EAUD_NODEFDEV) [status=420006]
16:51:45.150 pjsua_media.c Error opening sound device: Unable to find default audio device (PJMEDIA_EAUD_NODEFDEV) [status=420006]
16:51:45.150 pjsua_media.c Error retrieving default audio device parameters: Unable to find default audio device (PJMEDIA_EAUD_NODEFDEV) [status=420006]
16:51:45.150 pjsua_media.c Error opening sound device: Unable to find default audio device (PJMEDIA_EAUD_NODEFDEV) [status=420006]
I could also see the following log during the client application startup:
16:51:35.935 pa_dev.c PortAudio sound library initialized, status=0
16:51:35.938 pa_dev.c PortAudio host api count=1
16:51:35.938 pa_dev.c Sound device count=0
This is surprising , as on the same laptop I got the above output from auddemo, listing the sound devices.
To debug this further, I added the following chunk to my source code:
/* check audio device availability befor starting */
status = pjmedia_aud_dev_lookup (audioDeviceName, audioDriverName, &audioDeviceIndex);
if(PJ_SUCCESS != status)
{
pjsua_perror (__FILE__, "error locating audio device", status);
fprintf (stderr, "exiting with failure status...\n");
exit (EXIT_FAILURE);
}
In the invocation of pjmedia_aud_dev_lookup (), I pass the information that I get from querying auddemo for a device listed, using which I could successfully play back a .wav file:
Enter selection: l
Found 4 devices:
0: PA [ALI 5451: ALI 5451 (hw:0,0)] (2/2)
1: PA [pulse] (32/32)
2: PA [dmix] (0/2)
3: PA [default] (32/32)
Enter selection: i 0
Device at index 0:
-------------------------
ID : 0 (0x0)
Name : ALI 5451: ALI 5451 (hw:0,0)
Driver : PA
Input channels : 2
Output channels : 2
Capabilities : latency-in latency-out
Extended formats :
I pass "ALI 5451: ALI 5451 (hw:0,0)" for device name and "PA" for drive name in the invocation of pjmedia_aud_dev_lookup ().
And here is the output that I get upon running the client application:
17:03:19.634 sipClient.c error locating audio device: Not found (PJ_ENOTFOUND) [status=70006] exiting with failure status...
I am unable to figure out why there should be an error in locating the same device which had been previously listed by auddemo, using the pjmedia_aud_dev_lookup ().
Request you to kindly provide your thoughts.
TIA,
Vin
