Search found 4 matches

by primiano
Sat Nov 07, 2020 4:50 pm
Forum: ZoneMinder 1.34.x
Topic: High zmc CPU usage due to yuv2rgb24_X_c
Replies: 2
Views: 925

Re: High zmc CPU usage due to yuv2rgb24_X_c

Yeah the sad part is that in this case I don't care about motion detection at all. The workflow I am using is the following: for each camera I use: 1. the sub stream (640x480 @ 4fps) for motion detection 2. the main strearm (5MP) just for streaming and full-res recording (linking to the "sub ...
by primiano
Fri Nov 06, 2020 9:39 pm
Forum: ZoneMinder 1.34.x
Topic: High zmc CPU usage due to yuv2rgb24_X_c
Replies: 2
Views: 925

High zmc CPU usage due to yuv2rgb24_X_c

Hi, TL;DR zmc uses an unexpected amount of CPU for a h264 camera (80% cpu vs 10% cpu when using ffmpeg from cmdline). 80% of cpu cycles are spent in libswscale.so's yuv2rgb24_X_c. I am setting up zoneminder with some Reolink 5MP h264 cameras. I am experiencing a very high CPU usage for the zmc ...
by primiano
Wed Sep 14, 2011 10:40 am
Forum: ZoneMinder 1.25.x
Topic: Interlaced at 384x288
Replies: 4
Views: 3350

Re: Interlaced at 384x288

I made a try with V4L2_CAPTURE_FIELDS. The only problem is that monitors and events looks stretched (as if they were a 720*288 rectangle). How can fix it? I tried to check the "preserve 4:3 aspect ratio" but it is not preserved. I think there is a bug behind it, since when i check the "apsect ratio ...
by primiano
Tue Sep 13, 2011 9:25 pm
Forum: ZoneMinder 1.25.x
Topic: Interlaced at 384x288
Replies: 4
Views: 3350

Interlaced at 384x288

Hello, I have made a DVR system using a KDC-8800 clone (it has 8 bt878 chips and anoher bigger chip which I guess is a PCI-bridge) with some (cheap) CCTV cameras of different brands. I originally set-up all the (PAL) cameras to capture at 720x576 pixels @ 10 fps, BGR24. However, it soon revealed a ...