Regarding Video capture on DM814x

Amith DSouza

Prodigy 30 points

Other Parts Discussed in Thread: TVP7002

Hi,

I want to understand what all resolutions will the TVP7002 support using HDMI?

Secondly i want to know if lower resolution capture like QCIF and CIF can be supported using this?

Regards

over 13 years ago

0 Steve Clynes over 13 years ago

TI__Mastermind 43875 points

Amith,

The TVP7002 is an analog video ADC and has nothing to do with HDMI.

The TVP7002 can convert any format, but may require software support for resolutions other than those currently supported in our current software release.

BR,

Steve

0 HardikShah over 13 years ago in reply to Steve Clynes

TI__Mastermind 20245 points

Hi,

Current TVP7002 driver with V4L2 capture driver is verified with 1080P60, 1080i60 and 720P60 resolutions. But as Steve suggested it can support any resolution upto UXGA resolution.

Regards,

Hardik Shah

0 Amith DSouza over 13 years ago in reply to HardikShah

Prodigy 30 points

Hi,

Thank you Hardik and Steve. I am currently concerned with lower resolutions like QCIF, CIF and 4CIF resolution. Are these resolutions supported straightaway or are any modifications required for supporting these?

Regards,

Amith

0 HardikShah over 13 years ago in reply to Amith DSouza

TI__Mastermind 20245 points

Hi,

Are you planning to use EZSDK or V4L2 for your applications. For V4L2 it will be easy to support as you may have to add support for new decoders of your choice which support CIF and QCIF. We have a app note on how to add new decoders it can be found at http://processors.wiki.ti.com/index.php/DM81xx_AM38xx_Adding_External_Decoders_to_V4L2_Capture_Driver. For EZSDK, it uses M3 code to control TVP7002 external decoder, so you might have to change code to remove TVP7002 calls and implement simple user mode application to control/program your decoder. But hardware and software both supports QCIF and CIF resolutions, but since we dont have decoder on board its not tested. We may have some bugs/corner cases but that should be easy to resolve.

Regards,

Hardik Shah

Processors

Processors forum

Regarding Video capture on DM814x