[使用PJSIP接受视频通话后，应用程序挂起。我已经用180（振铃状态）应答呼叫，然后接受代码200的呼叫，但那时我的应用程序挂起了
获取此类日志：
2019-09-05 17:23:24.914108+0530 Codec name is Video Toolbox codec
2019-09-05 17:23:24.914226+0530 MTU VALUE for codec #0 is 1336
2019-09-05 17:23:24.914265+0530 FrameSize for codec #0 is w:1280 h:720
2019-09-05 17:23:24.914297+0530 FPS for codec #0 is 15/1
2019-09-05 17:23:24.914327+0530 BandWidth VALUE for codec #0 is avg:256000 max:256000
video available: 117:23:24.914 pjsua_call.c !Answering call 0: code=200
17:23:24.914 inv0x116850aa8 ..SDP negotiation done: Success
17:23:24.914 pjsua_media.c ...Call 0: updating media..
17:23:24.915 pjsua_media.c .....Media stream call00:0 is destroyed
17:23:24.915 pjsua_aud.c ....Audio channel update..
17:23:24.915 strm0x1169ef828 .....VAD temporarily disabled
17:23:24.917 strm0x1169ef828 .....Encoder stream started
17:23:24.917 strm0x1169ef828 .....Decoder stream started
17:23:24.920 pjsua_media.c ....Audio updated, stream #0: PCMU (sendrecv)
17:23:24.921 pjsua_media.c .....Media stream call00:1 is destroyed
17:23:24.921 pjsua_vid.c ....Video channel update..
17:23:25.011 vstenc0x1169f3428 .....Encoder stream started
17:23:25.011 vstdec0x1169f3428 .....Decoder stream started
17:23:25.011 pjsua_vid.c .....Setting up RX..
17:23:25.011 pjsua_vid.c ......Creating video window: type=stream, cap_id=-1, rend_id=0
17:23:25.011 vid_port.c .......Opening device OpenGL renderer [OpenGL] for render: format=I420, size=1280x720 @22:1 fps
17:23:25.237 ios_opengl_dev.c .......iOS OpenGL ES renderer successfully created
17:23:25.237 vid_port.c .......Device OpenGL renderer [OpenGL] opened: format=BGRA, size=1280x720 @22:1 fps
17:23:25.242 vid_conf.c .......Added port 0 (OpenGL renderer)
17:23:25.242 pjsua_vid.c .......stream window id 0 created for cap_dev=-1 rend_dev=0
17:23:25.242 pjsua_vid.c .......Window 0 created
17:23:25.246 vid_conf.c ......Added port 1 (vstdec0x1169f3428)
17:23:25.246 vid_conf.c ......Port 1 (vstdec0x1169f3428) transmitting to port 0 (OpenGL renderer)
17:23:25.246 ios_opengl_dev.c ......Starting ios opengl stream
17:23:25.249 pjsua_vid.c .....Setting up TX..
17:23:25.250 vid_conf.c ......Added port 2 (vstenc0x1169f3428)
17:23:25.250 pjsua_vid.c ......Creating video window: type=preview, cap_id=2, rend_id=0
17:23:25.250 vid_port.c .......Opening device Front Camera [AVF] for capture: format=I420, size=1280x720 @15:1 fps
17:23:25.332 vid_port.c .......Device Front Camera [AVF] opened: format=I420, size=1280x720 @15:1 fps
我在iOS平台上有同样的问题。如果您使用pjsua_call_answer2，则可以将180（PJSIP_SC_RINGING）替换为183（PJSIP_SC_PROGRESS）。使用“ out_auto_transmit = true”可以正常工作]