Shadow 1s Car DVR FullHD 30FPS with light sensor by SeeZeus

Falsificator said:
It all depends on Nancy Lee...)
Click to expand...
They are advertising the camera with Fixed radars (Russia) so is more important to send you a camera to test that feature. But I hope her boss to not be afraid because of your nickname on the forum. @Nancy Lee should explain him that you are an Ambarella firmware forum specialist. :rolleyes:

enjoy,
Mtz
 
Anyone know the bit rate on the Shadow 1s thanks
 
some sample video that have been posted were 12mbit, not sure if that is typical or not though, @Mtz would be able to confirm
 
How important is bit rate?

Would you see any difference in quality if the the bit rate was between 10- 15Mbit/sec? thanks
 
What determans the bitrate I would have thought it would have been up around 15Mbit/sec well that's a tad disappointing.
 
silkynitro said:
How important is bit rate?
Would you see any difference in quality if the the bit rate was between 10- 15Mbit/sec? thanks
Click to expand...
When the car is not moving, the difference between 8 and 20Mbit virtually invisible.
But the move bitrate shortage is felt much stronger.
Here is a comparison 8 and 22Mbit...
8Mbit.jpg 22Mbit.jpg
 
Can see there's improvement in the night video with the new firmware...

With old firmware

With new firmware
 
Ok thanks for the info

With the new firmware what is the bit rate

The bitrate on my o803 the specs say it's 21Mbit/sec
 
Here one of the video properties taken from Media Player Classic:

General
Complete name : H:\DCIM\100MEDIA\05050719_0579.MP4
Format : MPEG-4
Format profile : JVT
Codec ID : avc1 (avc1/isom)
File size : 100 MiB
Duration : 1mn 3s
Overall bit rate mode : Variable
Overall bit rate : 13.3 Mbps
Encoded date : UTC 2016-05-05 07:19:26
Tagged date : UTC 2016-05-05 07:19:26
AMBA :

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L4
Format settings, CABAC : Yes
Format settings, ReFrames : 2 frames
Format settings, GOP : M=3, N=15
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 1mn 3s
Bit rate mode : Variable
Bit rate : 11.0 Mbps
Maximum bit rate : 12.0 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 (30000/1001) fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.177
Stream size : 82.7 MiB (83%)
Title : Ambarella AVC
Language : English
Encoded date : UTC 2016-05-05 07:19:26
Tagged date : UTC 2016-05-05 07:19:26
Color range : Full

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 1mn 3s
Bit rate mode : Constant
Bit rate : 64.0 Kbps
Nominal bit rate : 128 Kbps
Channel(s) : 1 channel
Channel positions : Front: C
Sampling rate : 48.0 KHz
Frame rate : 46.875 fps (1024 spf)
Compression mode : Lossy
Stream size : 493 KiB (0%)
Title : Ambarella AAC
Language : English
Encoded date : UTC 2016-05-05 07:19:26
Tagged date : UTC 2016-05-05 07:19:26

Text
ID : 3
Format : Timed Text
Codec ID : text
Duration : 1mn 3s
Bit rate mode : Constant
Bit rate : 7 592 bps
Stream size : 58.4 KiB (0%)
Title : Ambarella EXT
Language : English
Forced : No
Encoded date : UTC 2016-05-05 07:19:26
Tagged date : UTC 2016-05-05 07:19:26
 
jokiin said:
They may have a reason for running lower bitrate, heat and stability could be an issue
Click to expand...

Can the Dashcam handle the heat if mounted it like the pic below, I'd be a tad worried about the GPS logger whether it was built in or one mounted along side.

I had a look the other day and it was about 33 Celsius out side and when I touched the black tint I couldn't hold my finger on it.
The clear glass was about 50% less heat.
 

Attachments

  • 2016-05-08_19-30-56.jpg
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silkynitro said:
What about one of yours,
Click to expand...

I'll have to check and see what the actual temperature is, it gets pretty dam hot here.

It looks like I may have to get one yours then, I see the other brands say any where between 70-85C
 
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