我无法在ios上呈现或捕获视频。
在成功的SDP否定之后，我尝试为现有音频呼叫添加视频呼叫，在on_call_media_state回调中，我观察到媒体对视频没有活动。
当我挂断电话时，我得到以下日志，显示#1 video H263-1998, inactive, peer=10.11.201.147:50858.
根据Siphon的说法，有些人可以在ios设备上获取视频流。
任何帮助将不胜感激
3-11-15 14:59:39.075 ipjsua[220:6007] 14:59:39.075 pjsua_app.c .....Call 1 is DISCONNECTED [reason=200 (Normal call clearing)]
2013-11-15 14:59:39.093 ipjsua[220:6007] 14:59:39.093 pjsua_app.c .....
2013-11-15 14:59:39.097 ipjsua[220:6007] [DISCONNCTD] To: "102" <sip:102@10.11.201.147>;tag=bf76b652
Call time: 00h:04m:04s, 1st res in 121 ms, conn in 674ms
#0 audio speex @16kHz, sendrecv, peer=10.11.201.147:22268
SRTP status: Not active Crypto-suite: (null)
RX pt=100, last update:00h:00m:00.627s ago
total 12.1Kpkt 1.29MB (1.78MB +IP hdr) @avg=42.2Kbps/58.2Kbps
pkt loss=4 (0.0%), discrd=0 (0.0%), dup=0 (0.0%), reord=0 (0.0%)
(msec) min avg max last dev
loss period: 20.000 20.000 20.000 20.000 0.000
jitter : 0.000 6.258 32.187 14.500 3.978
TX pt=100, ptime=20, last update:00h:00m:02.013s ago
total 8.3Kpkt 249.0KB (581.7KB +IP hdr) @avg=8.1Kbps/19.0Kbps
pkt loss=152 (1.8%), dup=0 (0.0%), reorder=0 (0.0%)
(msec) min avg max last dev
loss period: 20.000 49.836 140.000 120.000 25.816
jitter : 5.500 20.248 75.750 33.250 14.885
RTT msec : 5.966 50.438 146.325 131.000 33.555
#1 video H263-1998, inactive, peer=10.11.201.147:50858
SRTP status: Not active Crypto-suite: (null)
RX last update:00h:01m:30.404s ago
total 12pkt 48B (528B +IP hdr) @avg=2bps/22bps
pkt loss=0 (0.0%), discrd=0 (0.0%), dup=0 (0.0%), reord=0 (0.0%)
(msec) min avg max last dev
loss period: 0.000 0.000 0.000 0.000 0.000
jitter : -0.001 0.000 0.000 0.000 0.000
TX last update:00h:01m:03.332s ago
total 0pkt 0B (0B +IP hdr) @avg=0bps/0bps
pkt loss=1 (100.0%), dup=0 (0.0%), reorder=0 (0.0%)
(msec) min avg max last dev
loss period: 0.000 0.000 0.000 0.000 0.000
jitter : 0.000 0.000 0.000 0.000 0.000
RTT msec : 0.000 0.000 0.000 0.000 0.000
#2 video H263-1998, inactive, peer=10.11.201.147:22264
SRTP status: Not active Crypto-suite: (null)
RX last update:00h:01m:39.059s ago
total 15pkt 60B (660B +IP hdr) @avg=2bps/27bps
pkt loss=0 (0.0%), discrd=2 (13.3%), dup=2 (13.3%), reord=0 (0.0%)
(msec) min avg max last dev
loss period: 0.000 0.000 0.000 0.000 0.000
jitter : -0.001 0.000 0.000 0.000 0.000
TX last update:00h:01m:08.467s ago
total 0pkt 0B (0B +IP hdr) @avg=0bps/0bps
pkt loss=1 (100.0%), dup=0 (0.0%), reorder=0 (0.0%)
(msec) min avg max last dev
loss period: 0.000 0.000 0.000 0.000 0.000
jitter : 0.000 0.000 0.000 0.000 0.000
RTT msec : 0.000 0.000 0.000 0.000 0.000
2013-11-15 14:59:39.214 ipjsua[220:6007] 14:59:39.214 pjsua_media.c .....Call 1: deinitializing media..
2013-11-15 14:59:39.231 ipjsua[220:6007] 14:59:39.231 pjsua_media.c .......Media stream call01:0 is destroyed
2013-11-15 14:59:39.253 ipjsua[220:6007] 14:59:39.253 pjsua_vid.c .......Stopping video stream..
2013-11-15 14:59:39.259 ipjsua[220:6007] 14:59:39.259 pjsua_media.c .......Media stream call01:1 is destroyed
2013-11-15 14:59:39.264 ipjsua[220:6007] 14:59:39.264 pjsua_vid.c .......Stopping video stream..
2013-11-15 14:59:39.276 ipjsua[220:6007] 14:59:39.276 pjsua_media.c .......Media stream call01:2 is destroyed
2013-11-15 14:59:40.232 ipjsua[220:6007] 14:59:40.231 pjsua_aud.c Closing sound device after idle for 1 second(s)
2013-11-15 14:59:40.234 ipjsua[220:6007] 14:59:40.234 pjsua_app.c .Turning sound device OFF
2013-11-15 14:59:40.253 ipjsua[220:6007] 14:59:40.252 pjsua_aud.c .Closing iPhone IO device sound playback device and iPhone IO device sound capture device
2013-11-15 14:59:40.415 ipjsua[220:6007] 14:59:40.415 coreaudio_dev. .core audio stream stopped
2013-11-15 15:00:33.609 ipjsua[220:6007] 15:00:33.608 pjsua_core.c .RX 719 bytes Request msg SUBSCRIBE/cseq=52 (rdata0xa41a14) from UDP 10.11.201.147:5060:
SUBSCRIBE sip:101@10.11.208.114:5060;ob SIP/2.0
2013-11-15 15:19:54.347 ipjsua[220:6007] 15:19:54.347 pjsua_app.c .....Call 2 is DISCONNECTED [reason=200 (Normal call clearing)]
答案 0 :(得分：0)
iOS上的PJSIP目前尚未实现视频媒体。
数据表说明了实施哪些操作系统视频：
视频媒体
http://trac.pjsip.org/repos/wiki/PJSIP-Datasheet
此外，视频用户指南指出尚不支持移动操作系统：
视频可在PJSIP 2.0及更高版本上获得。仅支持桌面平台，尚不支持iOS等移动设备。