Hi James,
On 12/15/2011 08:14 AM, James wrote:
Hi all,
I'm using an OMAP3530 board and a monochrome 12-bit grey sensor.
Can anyone enlighten me why is the 12-bit grey formats at the CCDC
input (Y12) is truncated to Y10 at the CCDC output?
There are 2 CCDC outputs: CCDC_PAD_SOURCE_OF and CCDC_PAD_SOURCE_VP.
Only the VP (video port) truncates data to 10 bits, and it does that
because the subdevs it feeds can only handle 10 bits max.
I need to read the entire RAW 12-bit grey value from the CCDC to
memory and the data does not pass through other OMAP3ISP sub-devices.
I intend to use Laurent's yavta to capture the data to file to verify
its operation for the moment.
Can this 12-bit (Y12) raw capture be done?
Yes. If you are writing the 12-bit gray value directly into memory, you
will use SOURCE_OF and can write the full 12-bits into memory. You need
to set up your media pipeline to do sensor->CCDC->OMAP3 ISP CCDC output.
Thank you in adv.
--
Regards,
James
-Michael
MATRIX VISION GmbH, Talstrasse 16, DE-71570 Oppenweiler
Registergericht: Amtsgericht Stuttgart, HRB 271090
Geschaeftsfuehrer: Gerhard Thullner, Werner Armingeon, Uwe Furtner, Erhard Meier
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html