//
// Custom code adds here:
//

// check channels with file player
pjmedia_port *wav_file_media_port;
status = pjmedia_wav_player_port_create(app_config.pool,
  "test.wav",
  20, // ptime
  0, // flags
  0, // default buffer
  &wav_file_media_port); // returned port
if (status != PJ_SUCCESS) {
  PJ_PERROR(1,(THIS_FILE, status, "pjmedia_wav_player_port_create"));
  return;
}
pjsua_conf_port_id wav_file_slot;
status = pjsua_conf_add_port(app_config.pool, wav_file_media_port, &wav_file_slot);
if (status != PJ_SUCCESS) {
  PJ_PERROR(1,(THIS_FILE, status, "pjsua_conf_add_port wav_file_media_port"));
  return;
}
PJ_LOG(2,(THIS_FILE, "registered file_slot:%d", wav_file_slot));
pjsua_conf_connect(wav_file_slot, app_config.sc_ch1_slot); // or 0 for right ch

Greetings, In short: Expected: stereo_demo() plays wav file to left snd dev channel when file player connected to 0 slot (left) and plays to right snd dev channel when file connected to 1 slot (right). Observing: stereo_demo() plays wav file to both channels when file player connected to 0 slot (left) and silent when file player connected to 1 slot (right). Long: I have Linux system with stereo sound card and mono SIP app with usual telephony 8000 rate. My goal is to make PJSIP open the sound card in stereo mode and create three mono conference ports: - mono port 0 able to play sound/call to both channels of sound card - mono port 1 able to play sound/call to left channel of sound card - mono port 2 able to play sound/call to right channel of sound card I've started with stock stereo_demo() present in pjsua_app.c adding the simple wav player at the end of the stereo_demo() to check the things : ... /* Connect the splitter to the sound device */ status = pjmedia_snd_port_connect(app_config.snd, app_config.sc); pj_assert(status == PJ_SUCCESS); // // Custom code adds here: // // check channels with file player pjmedia_port *wav_file_media_port; status = pjmedia_wav_player_port_create(app_config.pool, "test.wav", 20, // ptime 0, // flags 0, // default buffer &wav_file_media_port); // returned port if (status != PJ_SUCCESS) { PJ_PERROR(1,(THIS_FILE, status, "pjmedia_wav_player_port_create")); return; } pjsua_conf_port_id wav_file_slot; status = pjsua_conf_add_port(app_config.pool, wav_file_media_port, &wav_file_slot); if (status != PJ_SUCCESS) { PJ_PERROR(1,(THIS_FILE, status, "pjsua_conf_add_port wav_file_media_port")); return; } PJ_LOG(2,(THIS_FILE, "registered file_slot:%d", wav_file_slot)); pjsua_conf_connect(wav_file_slot, app_config.sc_ch1_slot); // or 0 for right ch .... File plays to both channels When connected to 0 slot but must play to left channel only. The system is silent when file player connected to app_config.sc_ch1_slot. What is the problem with stock code ? How to achieve this simple goal ? Thanks in advance Rus

 //
 // Custom code adds here:
 //

 // check channels with file player
 pjmedia_port *wav_file_media_port;
 status = pjmedia_wav_player_port_create(app_config.pool,
   "test.wav",
   20, // ptime
   0, // flags
   0, // default buffer
   &wav_file_media_port); // returned port
 if (status != PJ_SUCCESS) {
   PJ_PERROR(1,(THIS_FILE, status, "pjmedia_wav_player_port_create"));
   return;
 }
 pjsua_conf_port_id wav_file_slot;
 status = pjsua_conf_add_port(app_config.pool, wav_file_media_port, &wav_file_slot);
 if (status != PJ_SUCCESS) {
   PJ_PERROR(1,(THIS_FILE, status, "pjsua_conf_add_port wav_file_media_port"));
   return;
 }
 PJ_LOG(2,(THIS_FILE, "registered file_slot:%d", wav_file_slot));
 pjsua_conf_connect(wav_file_slot, app_config.sc_ch1_slot); // or 0 for right ch

Hi, Found the issue - all is working when the media channel number is 2 (--stereo). Rus On Sat, 24 Feb 2018, pjsip@sfinx.in wrote: > > Greetings, > > In short: > > Expected: stereo_demo() plays wav file to left snd dev channel when file > player connected to 0 slot (left) and plays to right snd dev channel when > file connected to 1 slot (right). > > Observing: stereo_demo() plays wav file to both channels when file player > connected to 0 slot (left) and silent when file player connected to 1 > slot (right). > > Long: > > I have Linux system with stereo sound card and mono SIP app with usual > telephony 8000 rate. My goal is to make PJSIP open the sound card in > stereo mode and create three mono conference ports: > > - mono port 0 able to play sound/call to both channels of sound card > - mono port 1 able to play sound/call to left channel of sound card > - mono port 2 able to play sound/call to right channel of sound card > > I've started with stock stereo_demo() present in pjsua_app.c adding the > simple wav player at the end of the stereo_demo() to check the things : > > ... > /* Connect the splitter to the sound device */ > status = pjmedia_snd_port_connect(app_config.snd, app_config.sc); > pj_assert(status == PJ_SUCCESS); > > // > // Custom code adds here: > // > > // check channels with file player > pjmedia_port *wav_file_media_port; > status = pjmedia_wav_player_port_create(app_config.pool, > "test.wav", > 20, // ptime > 0, // flags > 0, // default buffer > &wav_file_media_port); // returned port > if (status != PJ_SUCCESS) { > PJ_PERROR(1,(THIS_FILE, status, "pjmedia_wav_player_port_create")); > return; > } > pjsua_conf_port_id wav_file_slot; > status = pjsua_conf_add_port(app_config.pool, wav_file_media_port, &wav_file_slot); > if (status != PJ_SUCCESS) { > PJ_PERROR(1,(THIS_FILE, status, "pjsua_conf_add_port wav_file_media_port")); > return; > } > PJ_LOG(2,(THIS_FILE, "registered file_slot:%d", wav_file_slot)); > pjsua_conf_connect(wav_file_slot, app_config.sc_ch1_slot); // or 0 for right ch > .... > > File plays to both channels When connected to 0 slot but must play to left > channel only. The system is silent when file player connected to app_config.sc_ch1_slot. > > What is the problem with stock code ? How to achieve this simple goal ? > > Thanks in advance > > Rus > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip@lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org >