Mtz
Well-Known Member
- Joined
- Nov 15, 2012
- Messages
- 4,351
- Reaction score
- 3,030
- Location
- Nice place
- Country
- Romania
- Dash Cam
- Viofo A229 Pro TeleQuad (the best dashcam in the world!)
I asked to your question. The camera is writing 18mb on each second on the SD Card when bitrate is CBR. No matter the resolution or FPS.
If the bitrate is VBR for sure the final sizes of videos will differ because in low conditions camera will offer less bitrate for every second. You can check bitrate distribution using bitrate viewer.
I think the 10mbps for 5FPS option is what developer wants or some hardware limitation. I agree too with that 10mbps value. In video encoding a bitrate over some value will not add more quality to the image so is just space wasted and the used name was QF (Quality Factor). For example a video is perfect at QF=17 (this number is just an example). If you will increase bitrate you will obtain QF=10. But on the video image you will not see any difference. For any lower value than QF=17 you are just wasting space.
Nice custom plugs. I have in my car at the windscreen dashcams zone, one permanent power with On/Off on some unused dashboard button and another power which is working only when engine running. Depending on what I want to expect from dashcam I plug the camera into the needed wired power.
enjoy,
Mtz
If the bitrate is VBR for sure the final sizes of videos will differ because in low conditions camera will offer less bitrate for every second. You can check bitrate distribution using bitrate viewer.
I think the 10mbps for 5FPS option is what developer wants or some hardware limitation. I agree too with that 10mbps value. In video encoding a bitrate over some value will not add more quality to the image so is just space wasted and the used name was QF (Quality Factor). For example a video is perfect at QF=17 (this number is just an example). If you will increase bitrate you will obtain QF=10. But on the video image you will not see any difference. For any lower value than QF=17 you are just wasting space.
Nice custom plugs. I have in my car at the windscreen dashcams zone, one permanent power with On/Off on some unused dashboard button and another power which is working only when engine running. Depending on what I want to expect from dashcam I plug the camera into the needed wired power.
enjoy,
Mtz