Video Call In Background

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 Hello ,

I am working on PJSIP. Audio and video call is working fine in foreground but the issue is, When the app is in background, I am able to make call in background but no video is displaying. Any help would be highly appreciated.

When I make a call and pick the call from background, I am getting the errors -

15:48:19.250    pjsua_vid.c  ......Creating video window: type=stream, cap_id=-1, rend_id=0

15:48:19.250     vid_port.c  .......Opening device OpenGL renderer [OpenGL] for render: format=I420, size=656x656 @22:1 fps

15:48:19.251 ios_opengl_dev  .......Failed to initialize iOS OpenGL because we are in background

15:48:19.251     vid_port.c  .......Closing OpenGL renderer..

15:48:19.319    pjsua_vid.c  .......Window 0: destroying..

15:48:19.319  pjsua_media.c  ....pjsua_vid_channel_update() failed for call_id 0 media 1: video subsystem not initialized (PJMEDIA_EVID_INIT)

15:48:19.319  pjsua_media.c  ....Error updating media call00:1: video subsystem not initialized (PJMEDIA_EVID_INIT)

15:48:19.319    pjsua_app.c  ...Call 0 media 0 [type=audio], status is Active

15:48:19.319    pjsua_aud.c  ...Conf connect: 3 --> 0

15:48:19.319    pjsua_app.c  ....Turning sound device ON

15:48:19.319   conference.c  ....Port 3 (sip:linchpin@192.168.1.7) transmitting to port 0 (Master/sound)

15:48:19.319    pjsua_aud.c  ...Conf connect: 0 --> 3

15:48:19.319   conference.c  ....Port 0 (Master/sound) transmitting to port 3 (sip:linchpin@192.168.1.7)

15:48:19.319    pjsua_app.c  ...Call 0 media 1 [type=video], status is Error

15:48:19.319    pjsua_app.c  ...Just rejected incoming video offer on call 0, use "vid call enable 1" or "vid call add" to enable video!

15:48:19.319   pjsua_core.c  ....TX 1321 bytes Response msg 200/INVITE/cseq=20 (tdta0x10494b000) to UDP 91.121.209.194:5060:


Code Snippet is -

#define KEEP_ALIVE_INTERVAL 600


- (void)keepAlive {

   

    static pj_thread_desc a_thread_desc;

    static pj_thread_t *a_thread;

    int i;

    

    if (!pj_thread_is_registered()) {

        pj_thread_register("ipjsua", a_thread_desc, &a_thread);

    }

    

    /* Since iOS requires that the minimum keep alive interval is 600s,

     * application needs to make sure that the account's registration

     * timeout is long enough.

     */

    for (i = 0; i < (int)pjsua_acc_get_count(); ++i) {

        if (pjsua_acc_is_valid(i)) {

            pjsua_acc_set_registration(i, PJ_TRUE);

        }

    }

}

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