Janus网关无法从RTSP流中获取视频流，而gstreamer和VLC很容易流传输
正如标题所示，使用gStreamer或VLC，我可以使用下面的命令毫无问题地获得要显示的视频
gst-launch-1.0 rtspsrc protocols=tcp location="rtsp://{USER}:{PASSWD}@{URL}:63554/axis-media/media.amp?videocodec=h264" short-header=TRUE ! rtph264depay ! decodebin ! fpsdisplaysink
我可以在VLC中将其设置为Network Stream，如下所示，结果类似
rtsp://{USER}:{PASSWD}@{URL}:63554/axis-media/media.amp?stream=0&videocodec=h264
但是janus (最新/稳定: v0.11.3)配置如下，无法在网页上显示流
type = "rtsp"
id = 99
description = "RTSP Test"
audio = false
video = true
url = "rtsp://{USER}:{PASSWD}@{URL}:63554/axis-media/media.amp?stream=0&videocodec=h264"
videortpmap = "H264/90000"
videofmtp = "profile-level-id=42e01f;packetization-mode=1"
videoopt=96
secret = "adminpwd"错误(重复)如下所示
2021-09-18T10:20:56Z janus-gateway.janus-gateway[30166]: [rtsp-test] Reconnected to the RTSP server, streaming again
2021-09-18T10:20:56Z janus-gateway.janus-gateway[30166]: [rtsp-test] 30s passed, sending OPTIONS而且还
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: * Connection #0 to host {IP} left intact
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: SETUP answer:RTSP/1.0 200 OK
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: CSeq: 2
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: Transport: RTP/AVP;unicast;client_port=10092-10093;server_port=50000-50001;ssrc=E60B5F25;mode="PLAY"
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: Server: GStreamer RTSP server
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: Session: c7gVPWsPKB48EAYw; timeout=60
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: Date: Sat, 18 Sep 2021 10:11:57 GMT
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]:
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: -- RTP port (video): 50000
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: -- RTCP port (video): 50001
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: -- SSRC (video): 3859504933
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: -- RTSP session timeout (video): 30000 ms
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: [WARN] No host address for the RTSP video stream, no latching will be performed
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: RTSP video latching: 0.0.0.0:50000
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: -- RTCP: 0.0.0.0:50001
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: Sending PLAY request...
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: * Found bundle for host {IP}: 0x7f143c01cee0 [can pipeline]
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: * Re-using existing connection! (#0) with host {IP}
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: * Connected to {IP} ({IP}) port 63554 (#0)
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: > PLAY rtsp://{USER}:{PASSWD}@{URL}:63554/axis-media/media.amp?stream=0&videocodec=h264 RTSP/1.0
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: CSeq: 3
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: Session: c7gVPWsPKB48EAYw
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: Range: npt=0.000-
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]:
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: < RTSP/1.0 200 OK
2021-09-18T10:21:02Z janus-gateway.janus-gateway[30166]: < CSeq: 3现在，我必须使用gstreamer来捕获rtsp流，并将其作为rtp发送给janus。
gst-launch-1.0 rtspsrc protocols=tcp location="rtsp://{USER}:{PASSWD}@{URL}:63554/axis-media/media.amp?videocodec=h264" short-header=TRUE ! rtph264depay ! decodebin ! videoscale ! videoconvert ! x264enc tune=zerolatency bitrate=1500 speed-preset=superfast ! rtph264pay ! udpsink host=127.0.0.1 port=8004
但这可能会保持24/7的流，这可能是有问题的……
回答 1
Stack Overflow用户
发布于 2021-09-19 07:34:08
Janus网关/服务器不支持interleaved mode。而且目前在Janus Streaming插件(基于Curl)中实现了对RTSP的支持，因此几乎不可能在那里添加这样的支持。
https://stackoverflow.com/questions/69233942
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