Search found 20 matches

by ExplodingLemur
Tue Sep 11, 2018 5:10 am
Forum: ZoneMinder 1.31.x
Topic: Passing CLI options to ffmpeg
Replies: 0
Views: 483

Passing CLI options to ffmpeg

In the source tab of a camera source there's a field for options to pass to ffmpeg. However the examples aren't command-line flags, and if I enter a CLI flag there I get either a parking error or an error that ffmpeg doesn't recognize the option. So, what options are intended to be passed via that f...
by ExplodingLemur
Tue Sep 11, 2018 4:59 am
Forum: ZoneMinder 1.31.x
Topic: zmc cpu usage with monitor and h264 passthrough
Replies: 16
Views: 6681

Re: zmc cpu usage with monitor and h264 passthrough

i3-4130T is just a dual core Haswell @ 2.9ghz. High CPU utilization would be expected for an 8MP 32bit h264 stream @ 30fps. If your goal is to stick with the CPU but achieve a lower load, then I don't see how you could avoid dropping the frame rate and perhaps the resolution too. I replaced it with...
by ExplodingLemur
Thu Aug 23, 2018 5:14 am
Forum: ZoneMinder 1.31.x
Topic: zmc cpu usage with monitor and h264 passthrough
Replies: 16
Views: 6681

Re: zmc cpu usage with monitor and h264 passthrough

i3-4130T is just a dual core Haswell @ 2.9ghz. High CPU utilization would be expected for an 8MP 32bit h264 stream @ 30fps. If your goal is to stick with the CPU but achieve a lower load, then I don't see how you could avoid dropping the frame rate and perhaps the resolution too. If all it's doing ...
by ExplodingLemur
Thu Aug 23, 2018 12:38 am
Forum: ZoneMinder 1.31.x
Topic: zmc cpu usage with monitor and h264 passthrough
Replies: 16
Views: 6681

Re: zmc cpu usage with monitor and h264 passthrough

What is the purpose of decoding the video stream regardless of settings? If it's set to pass-through only, this serves no purpose.
by ExplodingLemur
Thu Aug 09, 2018 3:31 am
Forum: ZoneMinder 1.31.x
Topic: zmc cpu usage with monitor and h264 passthrough
Replies: 16
Views: 6681

Re: zmc cpu usage with monitor and h264 passthrough

I looked at this thread and disabled the Spectre V2 and page table isolation mitigations (confirmed the grub settings took effect at next boot via dmesg). It actually increased my CPU utilization. A single monitor, no recording, set to h264 passthrough is now taking 80-90% CPU.
by ExplodingLemur
Mon Aug 06, 2018 4:26 pm
Forum: ZoneMinder 1.31.x
Topic: zmc cpu usage with monitor and h264 passthrough
Replies: 16
Views: 6681

zmc cpu usage with monitor and h264 passthrough

I set up a monitor with h264 passthrough for an 8MP camera. CPU usage on an i3-4130T is around 70% of one core: 6937 www-data 20 0 1183804 735668 672544 R 70.4 9.1 0:50.17 zmc Should it be this high when no users are actually looking at the video stream? Camera configuration: https://imgur.com/a/NJB...
by ExplodingLemur
Mon Jul 27, 2015 12:38 am
Forum: ZoneMinder 1.26.x
Topic: Filter to convert event to video and remove JPEGs?
Replies: 2
Views: 3142

Re: Filter to convert event to video and remove JPEGs?

That's not quite what I'm looking for, because I want the video files to stay with the events, and get cleaned up by Zoneminder when it's time to expire them, or the disk gets full. All I want is for each event to create an MPEG or AVI and drop the JPEGs after Zoneminder has moved on to recording in...
by ExplodingLemur
Sun Jul 26, 2015 5:35 pm
Forum: ZoneMinder 1.26.x
Topic: Filter to convert event to video and remove JPEGs?
Replies: 2
Views: 3142

Filter to convert event to video and remove JPEGs?

I have Zoneminder currently running in continuous record mode. It creates a new event every 10 minutes. For every 10-minute event, I'd like to convert the JPEGs (from the MJPEG stream off my cameras) to a video file, and remove the individual JPEG image files (this should reduce my disk usage by abo...
by ExplodingLemur
Fri Apr 01, 2011 5:28 pm
Forum: Hardware Queries
Topic: Bluecherry MPEG4/H.264 cards
Replies: 5
Views: 1642

Re: Bluecherry MPEG4/H.264 cards

Ok. Now this is probably blasphemy on this forum, but are there any suggestions of free Linux software to save and manage just the MPEG4 streams? For this particular application, a low-power system that just saves compressed video to disk will be fine, I don't plan on using any motion detection or o...
by ExplodingLemur
Fri Apr 01, 2011 5:12 pm
Forum: Hardware Queries
Topic: Bluecherry MPEG4/H.264 cards
Replies: 5
Views: 1642

Re: Bluecherry MPEG4/H.264 cards

The MJPEG encoders will work with Zoneminder. The compressed stream(s), audio input, on-board motion detection, video / audio output will not be supported. Great, thanks! Next question, for Zoneminder is it more CPU-efficient to use something that provides MJPEG output (such as the Bluecherry hardw...
by ExplodingLemur
Sat Mar 26, 2011 11:49 pm
Forum: Hardware Queries
Topic: Bluecherry MPEG4/H.264 cards
Replies: 5
Views: 1642

Bluecherry MPEG4/H.264 cards

Will Zoneminder work with the Bluecherry MPEG4 or H.264 capture cards? I see that the BC-08240A has MPEG4 and MJPEG encoders onboard, I assume if Zoneminder supports this card it would record the MJPEG stream?

Thanks!
by ExplodingLemur
Wed Oct 17, 2007 5:40 pm
Forum: ZoneMinder Previous Versions
Topic: global warming - low power consumption - Zoneminder...
Replies: 8
Views: 4761

To calculate Hours of Operation, the Nominal Capacity of the Battery (in Milliamps) is divided by the Total Current Consumption Rate of the items being powered by the battery. Example: An 800mA battery (.8Amp) is being used to power a black and white board camera that consumes 150mA per hour. Divid...
by ExplodingLemur
Thu Sep 27, 2007 9:37 pm
Forum: ZoneMinder Previous Versions
Topic: Camera falling behind realtime and high zmc CPU usage
Replies: 6
Views: 1998

Gaah! I turned on debugging...and everything behaved normally. Turned it off, and everything looks normal still. (restarted ZM after changing the debug settings each time). Okay...let's try an experiment...4 of the 5 cameras are in the same room, when we shut off the lights the framerates on those c...
by ExplodingLemur
Thu Sep 27, 2007 8:45 pm
Forum: ZoneMinder Previous Versions
Topic: Camera falling behind realtime and high zmc CPU usage
Replies: 6
Views: 1998

That was one of mine and it turned out if i recall to be an overheating northbridge. New mobo fixed it I'm reluctant to suspect the hardware at this point, this box came out of service as part of a MySQL cluster with no problems, and is identical hardware to a number of other machines we have runni...
by ExplodingLemur
Thu Sep 27, 2007 5:59 pm
Forum: ZoneMinder Previous Versions
Topic: Camera falling behind realtime and high zmc CPU usage
Replies: 6
Views: 1998

It doesn't help at all. The image is still delayed whether I refresh the window, or close and re-open the monitoring window. I've tried turning off ZM_NETCAM_REGEXPS and setting HTTP 1.0 and then restarting ZoneMinder...the CPU usage of the other zmc processes drop dramatically, but this particular ...