On a point related to high MP cameras.
In pursuit of optimising video quality I have concluded (possibly incorrectly) that for my assorted Dahua cams the following applies;
- H.264H produces sharper images over H.265. I couldn't notice this with my 4 MP cameras, however on the 8 MP it is. Yes, they use more disk space, but not a lot perhaps only saved 20% with H.265 compared to H.264H
- CBR over VBR - yes I know the theory that VBR should use a lot less disk space in idle scenes, but disk is cheap and there are times where I see less ghosting\artifacting with CBR. Just seems like "less exceptions" occur with CBR and the bit rate still seems quite reasonable.
Controversial perhaps, and wrong I may be. However
I am convinced H.265 and VBR are not worth the disk savings, and I use constant recording. Also processing\viewing H.265 generally uses more compute, okay so perhaps not so much of an issue now with sub-streams but efficient is efficient.
Anyone else agree? What settings are you using for Sub-Streams? I use sub-stream 2 on the Duahua's, as the it supports a similar aspect ration of 1080p at 6fps. I use a make time of 0.5s in BI Triggers, so really could drop this to 3-2fps and not notice a difference.