Grandstream gx3504 issues

[damned_virus]

Okay,

I have several IP cameras that work great and 3 analog cameras that are connected to a Grandstream gx3504. I can stream the feed to vlc on my pc and on the ubuntu VM that i run zoneminder on. However, when trying that same URL on the libvlc or ffmpeg settings on zoneminder, it fails and just outputs either a blue screen or nothing.

2015-08-21 19:17:43.015880 zmdc 1497 WAR Can't find process with command of 'zma -m 13' zmdc.pl
2015-08-21 19:17:42.740300 zmc_m13 26628 INF Priming capture from rtsp://*****:*****@192.168.2.3/0 zm_libvlc_camera.cpp 145

or

Unable to open input rtsp://*******:******@192.168.2.3/0 due to: Operation now in progress


Any ideas? :/

[knight-of-ni]

I've got both a 3501 and a 3504.
I'm using a source type of ffmpeg and they both work fine in zoneminder.

What version of ffmpeg do you have on your system?

[damned_virus]

thanks for your reply,

I have an ubuntu server that runs avconf version 9.18

I have also installed ffmpeg and tried that too, version N-74369-g55a07cf (they could make version numbers simpler...)