> The setup:
> Hikvision and Vivitek IP cameras, feeding RTSP streams; proxied by
> live555ProxyServer; viewed with VLC.
Make sure you’re using an up-to-date version of VLC.
> When I connect directly the the cameras, the video comes up almost
> immediately (<1s). When I connect via the proxy, it takes between 15-30s
> before the video comes up, depending on the resolution of the proxied stream.
> Changing the I-frame rate on the cameras does not seem to affect this startup
> (1) Is this normal?
> (2) If not, how do I go about debugging the problem? Any hints on what might
> be wrong?
Unfortunately not. (Increasing the I-frame rate is what I would have
The first thing I’d try is using “openRTSP” <http://www.live555.com/openRTSP/>
as a client (instead of VLC). Try recording the stream, both directly from the
camera, and via the proxy server. In each case, rename the saved video file to
have a “.h264” filename suffix, and try playing it with VLC.
Also, please run the proxy server with the -V option, and send us the
diagnostic output, so we can see if there’s anything unusual in the RTSP
“DESCRIBE” response from the camera.
Live Networks, Inc.
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