5442 S3 series, weird bitrate issue

Ok so not a real good test as we only had 2 cars after I set it to AI last night. And its a rainy overcast sloppy mess today, but here's a few caps.

I'm not seeing any noticeable difference yet. Will monitor. I changed nothing but the codec from General to AI
Same 30fps/60 iframe, 10240 bitrate CBR (I dont get a choice for ABR on my 5241E- Z12E? )

Certainly no better, but not worse enough for me to pinpoint anything

HOAEntrP2P_EntTag_main_20241106131908_@13.jpg HOAEntrP2P_EntTag_main_20241106084641_@13.jpg HOAEntrP2P_EntTag_main_20241106042912_@13.jpg HOAEntrP2P_EntTag_main_20241106012641_@13.jpg
 
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bigredfish said:
Ok so not a real good test as we only had 2 cars after I set it to AI last night. And its a rainy overcast sloppy mess today, but here's a few caps.

I'm not seeing any noticeable difference yet. Will monitor. I changed nothing but the codec from General to AI
Same 30fps/60 iframe, 10240 bitrate CBR (I dont get a choice for ABR on my 5241E- Z12E? )

Certainly no better, but not worse enough for me to pinpoint anything

View attachment 206599 View attachment 206600 View attachment 206601 View attachment 206602
Click to expand...
So if there's no choice for ABR and you're stuck using CBR, I assume that means that there's no ramping up and down? So what is the AI setting doing then?
 
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Good question :idk:

I’ll try a reboot of the camera, it could just be older FW. Maybe only supported in S3
 
I cant get ABR to show as a choice in that 5241 Z12 OR a 5442H-ZHE with the new interface? I must be holding my tongue wrong
 
steve1225 said:
wait one hour and check one more time...
AI coding is reacting with some delay (minimum a few minutes) to analyze generated bitrate and then change slowly compression ratio to fit in configured average bitrate...

that's the beauty of this algorithm - it allows to big jumps in bitrate depending of needs / what is happening in video scene / movement but guaranties day (24 hour) average will fit configured value.

much better that CBR which try to stay at similar bitrate no matter what happens in video scene.
Click to expand...

i had to use a CBR with no AI coding because some of the cams would ramp up to near 20 megabits which would make HD live view and playback in dmss stutter every second (just watching a single cam), regardless that the 5216-ei is connected to a gigabit lan with fiber optic internet with 1.5 gigabit upload and download and the network i'm using dmss on has 100 megabit download (while using the 5ghz wifi band near the router). no bandwidth bottlenecks anywhere. must be a dmss issue. happens on p2p and ddns.
 
For mine, new interface also without ABR, when you pick the AI codec it locks the selection for Bit Rate Type to CBR. Below that there's a non-selectable Reference Bit Rate that varies depending on what is selected for Resolution (1792-9728 Kb/s @ 2560x1440) . Below that you can set the Bit Rate.

ETA: I've not seen any ramping up as above. At 8,192 main stream for mine stays right around ~1,000-1,300 kB/s depending on day/night/what's happening.
 
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^^^^
Yep same here

So where/how does one get ABR?
 
OK I got it, great screencap. Give me a few minutes
 
1.21 jiggawatts! said:
i had to use a CBR with no AI coding because some of the cams would ramp up to near 20 megabits which would make HD live view and playback in dmss stutter every second (just watching a single cam), regardless that the 5216-ei is connected to a gigabit lan with fiber optic internet with 1.5 gigabit upload and download and the network i'm using dmss on has 100 megabit download (while using the 5ghz wifi band near the router). no bandwidth bottlenecks anywhere. must be a dmss issue. happens on p2p and ddns.
Click to expand...
Give camera on ABR one hour.
And put lower average bitrate
It will correct
 
I cant get ABR to even display as a choice.?
AICodec-camera.jpg

BUT with AI Codec.CBR 10240 my normal settings, I see it doing its variable thing.

Rest about 2000
AICodec-4.jpg

Then fast ramp up to 5000 and 13,000 when a target enters the scene
AICodec-5.jpg
AICodec-6.jpg


Expand Full screen
View attachment Recording 2024-11-06 182921.mp4

HOAEntranceP2P_EntTag_main_20241106181624_@3.jpg
 
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Great capture. Only references to ABR that I see are for certain Dahua NVRs. And since I don't see the AI codec ramp down/up running BI, I wonder if that's also associated with Dahau's NVRs/SPSS/DMSS? I don't have the same traffic stats in live view on the cam to see the same but BI doesn't show it in its running stats updating ~1 second.
 
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Yeah it seems to work just like VBS but better.
I need to test some more but the way I just demo’d shows no real image degradation and at night in pitch black it slows down to. 2000 so that would be a meaningful savings in HD space
 
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I tried the AI codec in new S3s 5442s and saw no reference to ABR either. Same as the 5241 S2 shown. So must be referenced in the newer NVRs. I don’t get a range setting either..
 
Huh,
Must be FW version or model specific.

I have 2 5442 varibale focus S3 in the model #
2 5442 H-ZHE's
1 5442 Z4 S3

None have the ABR setting or the range

Not really a concern as Im seeing AI codec with CBR seems to work fine as my demo shows, just interesting
 
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Another side note:'
During daylight, that same LPR camera at rest is very close to my set bitrate of 10240. Whn an object enters the scene, it will jump to 12000-13000 momentarily and back down gradually over 10 seconds or so. So at night with a black scene, it will drop to 2000 but during the day with more to see, it will hover at my set CBR bitrate
 
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