Bitrate

R

rfj

Pulling my weight
Oct 26, 2014
414
123
I have several Hikvision cameras including a DS-2CD3145F which has a video resolution of 2560x1440. No matter what settings I use the bit rate never seems to go over 1Mbits. That is even when I set it to Main Stream, 2560x1440, constant bit rate @ 8192kbps, H.264. Main Profile and I Frame Interval 1. I know this are not ideal settings but should generate the highest bit rate but it's always around 1Mbps no matter what settings I use. Why does it not go higher?

Btw, I am basing the bitrate on what Blue Iris shows me in the status of the camera setting.
 
rfj said:
I have several Hikvision cameras including a DS-2CD3145F which has a video resolution of 2560x1440. No matter what settings I use the bit rate never seems to go over 1Mbits. That is even when I set it to Main Stream, 2560x1440, constant bit rate @ 8192kbps, H.264. Main Profile and I Frame Interval 1. I know this are not ideal settings but should generate the highest bit rate but it's always around 1Mbps no matter what settings I use. Why does it not go higher?

Btw, I am basing the bitrate on what Blue Iris shows me in the status of the camera setting.
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You are confusing bytes and bits. Multiply by 8.
 
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Duh, BI uses a capital B = Bytes. It all makes sens now. I was always maxing out my upper limit so of course turning up the camera settings didn't increase the bit rate. Thanks!
 
I just tried to turn it up in the camera settings but the max allowed is the 8192kbps. Now I need to figure out what the optimal settings are to achieve the best image quality within that limited 8192kbps.
 
rfj said:
I just tried to turn it up in the camera settings but the max allowed is the 8192kbps. Now I need to figure out what the optimal settings are to achieve the best image quality within that limited 8192kbps.
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8192 is way more than sufficient. That camera will perform poorly in low light and at night regardless of bitrate.
 
Yes, at least for the front I need to get some better cameras. Too many to chose from...
 
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