rtsp ffmpeg connection latency

[hk_niko]

Hi all,
I have about 16 cam that open with vlc rtsp viewing them after 15 seconds, while on zoneminder not displayed.
what parameters should I configure?

thx

[christophe_y2k]

Hello,
i think you must first search "shm memory setting" and increase it (that in the ZoneMinder documentation).

After you need to set camera buffer for all camera

Defaut camera buffer:

Image Buffer Size (frames) =50
Warmup Frames =25
Pre Event Image Count =25
Post Event Image Count =500
Stream Replay Image Buffer =1000
Alarm Frame Count = 1

With many camera:

Image Buffer Size (frames) =40 or less
Warmup Frames =25
Pre Event Image Count =20 (maxi = image buffer size / 2)
Post Event Image Count =500
Stream Replay Image Buffer =1000
Alarm Frame Count = 1

[hk_niko]

thanks for the reply,
I read the documentation on shmemory but I need some help from those who have already tried and tested everything.
I have a server with a six-core i5, 16gb of ram.
How could I set the shmmax and shmall?

regard!