H264 Passthrough and ram usage

[clipo]

Debian 10 with ZM 1.33.15
Hikvision IPC-B140 IP camera

I have the above system setup as H264 Passthrough with and basic recording of the video.

At 1920 x 1080 @ 10fps 32bit colour the system is using 50% of the shm drive, 2gb.
At higher resolutions the ram usage is exponentially more...

I have used ffmpeg to direct stream the video to the hard drive as I'm guessing zoneminder dose and the ram usage is very very little.

Is this normal?

[iconnor]

Yes it's how ZM was designed back when video was 320x200. Every time you double the resolution you are in fact multiplying by 4 the ram and cpu requirements. In 1.35 I will drastically reduce the shm requirements. For now you need a lot of ram. Good thing it is relatively cheap.

[clipo]

Thanks,

I guessed that would be the answer.

Hope you can get 1.35 in development soon as I'm starting to build a system with multiple mega pixel cameras.

Is there any way to reduce the ram usage other than reducing the video size, 1920 x 1080 is the minimum size we can use.