paulhothersall
Posts: 28
Joined: Wed Jul 31, 2013 5:55 am

camera v2 high FPS / short clip option??

Tue Apr 26, 2016 12:45 am

If the MPEG4 encoder block can "only" take 50% of the 960x540x240 rate .... then could the GPU be assigned enough memory for burst captures for a buffer?

if thats 150MB/sec uncompressed at the 10bit setting, have say a 512MB buffer, and thats towards 6 seconds of capture if the encoder is emptying from the front of the queue at full rate. Its no different than the mechanism used for the first few secs on a DLSR taking stills for example

I can think of many many things where that would be a great feature.

Note this could also work for the other readout rates.

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Gavinmc42
Posts: 3641
Joined: Wed Aug 28, 2013 3:31 am

Re: camera v2 high FPS / short clip option??

Fri May 06, 2016 1:31 pm

According to the data sheet with a 4 lane MIPI, V2 should do max 240fps at VGA.
But Pi, cable and pcb is only 2 lane, so 120fps?
V1 was 90fps VGA?
Anyone tried to get 120fps from a V2?
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amuxie
Posts: 4
Joined: Wed May 18, 2016 6:34 am

Re: camera v2 high FPS / short clip option??

Wed May 18, 2016 7:30 am

Gavinmc42 wrote:According to the data sheet with a 4 lane MIPI, V2 should do max 240fps at VGA.
But Pi, cable and pcb is only 2 lane, so 120fps?
V1 was 90fps VGA?
Anyone tried to get 120fps from a V2?
I have tried, but failed, only 90fps VGA on pi3, sony imx219 sensor.

how about you?

thanks in advance!

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