Android 4.x是否支持通过TCP传输RTSP？

我已经在Android中使用VideoView成功地在wowza上播放视频.现在我得处理我的服务器,UDP端口似乎被阻止了.使用openRTSP命令的证明:

-> % openRTSP rtsp://61.218.52.250:554/live/ch00_0

Opening connection to 61.218.52.250, port 554...
...remote connection opened
Sending request: OPTIONS rtsp://61.218.52.250:554/live/ch00_0 RTSP/1.0
CSeq: 2
User-Agent: openRTSP (LIVE555 Streaming Media v2013.12.16)


Received 105 new bytes of response data.
Received a complete OPTIONS response:
RTSP/1.0 200 OK
CSeq: 2
Server: UBNT Streaming Server v1.2
Public: DESCRIBE, SETUP, TEARDOWN, PLAY


Sending request: DESCRIBE rtsp://61.218.52.250:554/live/ch00_0 RTSP/1.0
CSeq: 3
User-Agent: openRTSP (LIVE555 Streaming Media v2013.12.16)
Accept: application/sdp


Received 562 new bytes of response data.
Received a complete DESCRIBE response:
RTSP/1.0 200 OK
CSeq: 3
Server: UBNT Streaming Server v1.2
Content-Base: rtsp://61.218.52.250:554/live/ch00_0/
Content-Type: application/sdp
Content-Length: 393

v=0
o=- 1 1 IN IP4 127.0.0.1
s=Ubiquiti Live
i=UBNT Streaming Media
c=IN IP4 0.0.0.0
t=0 0
m=video 0 RTP/AVP 99
b=AS:50000
a=framerate:25
a=x-dimensions:1280,720
a=x-vendor-id:ubnt,a521
a=x-rtp-ts:4617405454576779984
a=rtpmap:99 H264/90000
a=fmtp:99 profile-level-id=42A01E;packetization-mode=1;sprop-parameter-sets=Z0IAKOkAoAt1xIAG3dAAzf5gDYgQlA==,aM4xUg==
a=control:trackID=0

Opened URL "rtsp://61.218.52.250:554/live/ch00_0", returning a SDP description:
v=0
o=- 1 1 IN IP4 127.0.0.1
s=Ubiquiti Live
i=UBNT Streaming Media
c=IN IP4 0.0.0.0
t=0 0
m=video 0 RTP/AVP 99
b=AS:50000
a=framerate:25
a=x-dimensions:1280,720
a=x-vendor-id:ubnt,a521
a=x-rtp-ts:4617405454576779984
a=rtpmap:99 H264/90000
a=fmtp:99 profile-level-id=42A01E;packetization-mode=1;sprop-parameter-sets=Z0IAKOkAoAt1xIAG3dAAzf5gDYgQlA==,aM4xUg==
a=control:trackID=0

Created receiver for "video/H264" subsession (client ports 63346-63347)
Sending request: SETUP rtsp://61.218.52.250:554/live/ch00_0/trackID=0 RTSP/1.0
CSeq: 4
User-Agent: openRTSP (LIVE555 Streaming Media v2013.12.16)
Transport: RTP/AVP;unicast;client_port=63346-63347


Received 47 new bytes of response data.
Received a complete SETUP response:
RTSP/1.0 461 Unsupported Transport
CSeq: 4


Failed to setup "video/H264" subsession: 461 Unsupported Transport

搜索后我发现Android似乎仍不支持TCP上的RTSP:

使用RTSP/RTP流式传输到Android设备时,RTP部分必须通过UDP流动.Android不支持RTSP/RTP交叉(RTP over TCP).这意味着如果UDP不可用于RTP播放,则TCP上的RTP将无法用作故障转移,并且您的流将无法播放.

考虑到它是在2010年发布的,Android 4.x现在是否支持TCP上的RTSP？我发现很多帖子询问如何强制通过TCP以外的TCP传输.我猜不是.

如果没有,我可以通过重新编译和使用ffmpeg库来实现吗？

基本上我希望ffmpeg可以帮助我自动切换到TCP,而UDP不可用.