Hi there,
I am trying to use the stereo demo incorporated in the pjsua application..
(pjsip 1.8.10 on windows XP). In my application I need to be able to use
one sound device for 2 different simultaneous calls.
When I enable the stereo demo the ports show up in the app as connected to
the conference bridge, as below:
Conference ports:
Port #00[16KHz/20ms/2] Master/sound transmitting to:
Port #01[16KHz/40ms/1] scomb-rev transmitting to:
Port #02[16KHz/20ms/2] ringback transmitting to:
Port #03[16KHz/20ms/2] ring transmitting to:
But calls still works as normal in stereo and only when call is bridged to
port 0 ( my sound device)
trying to use port 1 does nothing.
I ve also tried implementing the stereo demo differently by doing the
following:
creating splitter/combiner, the create left and right channel.:
status = pjmedia_splitcomb_create(app_config.pool,
conf->info.clock_rate /* clock rate */,
2 /* stereo */,
2 * conf->info.samples_per_frame,
conf->info.bits_per_sample,
0 /* options */,
&app_config.sc);
pj_assert(status == PJ_SUCCESS);
status = pjmedia_splitcomb_create_rev_channel(app_config.pool,
app_config.sc,
0 /* ch1 */,
0 /* options */,
&mediaPortLeftChannel);
pj_assert(status == PJ_SUCCESS);
status = pjmedia_splitcomb_create_rev_channel(app_config.pool,
app_config.sc,
1 /* ch1 */,
0 /* options */,
&mediaPortRightChannel);
pj_assert(status == PJ_SUCCESS);
then I connect the splitter/combined and the left right channels to the
conference bridge:
status = pjsua_conf_add_port(app_config.pool, mediaPortLeftChannel,
&leftChannelConfPort);
pj_assert(status == PJ_SUCCESS);
status = pjsua_conf_add_port(app_config.pool, mediaPortRightChannel,
&rightChannelConfPort);
pj_assert(status == PJ_SUCCESS);
status = pjsua_conf_add_port(app_config.pool, app_config.sc,
&splitterConfPort);
pj_assert(status == PJ_SUCCESS);
create sound device again:
status = pjmedia_snd_port_create(app_config.pool, -1, -1,
conf->info.clock_rate,
2 /* stereo */,
2 * conf->info.samples_per_frame,
conf->info.bits_per_sample,
0, &app_config.snd);
pj_assert(status == PJ_SUCCESS);
This way does not work either, the ports show up in the conference bridge
but no audio is playing when i connect calls.
any example on how to implement the stereo splitter correctly..
regards
Gideon Spreeth
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