Amovision, anyone?

[jefft_london]

Hi All,

Has anyone got an Amovision IP camera working with ZM? I have the AM-C750, a 2MP dome job, seems ok and according to Amovision support, it has RTSP streams. When I try to set it up as RTSP/RTP in ZM, though, I get a whole barrage of errors in the log ("Error while decoding frame 0" being the favourite but can produce others if I tweak the settings )

It's supposed to give a HD (1280x720) stream on rtsp://camera/ch0_0.h264. Does that ring any bells... is Amovision an OEM for someone else whose settings might work, perhaps? Very little reference to them online except their own site and retailers, whcih surprises me as the cameras look like quite good value.

Any clues appreciated!

Thanks,

Jeff

[bb99]

Use ffmpeg as your source type.

[jefft_london]

Thanks bb99, must've been the one source type I'd not tried!

That gets an image, which is a big step forward, but it's nasty: blurred, mostly the background, pixellation like a news report hiding someone's face. Looks like I'm going to be puzzling this one for a while!

[jefft_london]

Interesting, or possibly a weird camera...

First up, needed to increase the usual low shmem allocation limit. The frame buffer for HD cameras doesn't half use memory

Second, I still had image blocking and also a really delayed response to motion (image on screen changing 2 secs after the real world). I've discovered, through experimenting, that the logical first thought of "it's struggling, reduce the fps" doesn't apply here. The right answer seems to be to increase the frame rate - it doesn't like being below 20fps and it seems happiest at the full 25fps. Not that I really need my cctv recorded in quite such minute detail as 25fps, but hey it's working!

So, we're up and running. Now I just need to sort out the issue of reflections off the camera's dome and work out how much machine I'll really need if I'm daft enough to run several megapixel cameras

For anyone who needs them, the correct settings for Amovision's H264 cameras (or at least the C-750) are:
ffmpeg, 25fps, rtsp://user:password@camera-ip/ch0_0.h264 , 1280x720 ; there's also a lower-res stream at ch0_1.h264 but I've not yet worked out what size and frame rate that is.