sample_embedding_folder2/0797116.txt

Ticket Name: why ancillary data need ANC_SKIP_NUMPIX, ANC_SKIP_NUMLINES ?

Query Text:
follow:https://e2e.ti.com/support/processors/f/791/p/796261/2948349#2948349 i have last question: i had read page 2211 of TRM. why is ancillary data that it need what are ANC_SKIP_NUMPIX, ANC_SKIP_NUMLINES? i think it just video data need these.why also trimmer in ancillay data?

Responses:
It is a features, you could even trim unwanted ancillary data.. Rgds, Brijesh

ok. if i need all ancillary data, How do I assign the following？ ANC_SKIP_NUMPIX ANC_ NUMLINES_USE ANC_SKIP_NUMLINES ANC_ USE_NUMPIX

ok, In that case, you don't need to enable cropping for the ancillary data.. Just set the bypass bit to 1.

hi: we have requirement that get ancillary data in vip module.

You could capture ancillary data when vsync is active high.

hi: i had know u say. but i had read page 2211 of TRM.the page wrote it need configure ANC_SKIP_NUMPIX,ANC_USE_NUMPIX,ANC_SKIP_NUMLINES,ANC_USE_NUMLINES for Vertical Ancillary. It makes me confused.these four registers used to crop field in frame.however The veritical ancillary store in bottom and top field in frame. so how to configure these?

Yes, but this registers need to be configured only if you want to enable cropping.. If you dont want ancillary data cropping, then these registers need not be configured and VIP will capture entire blanking area in the memory. Rgds, brijesh

ok,i have see vision_sdk_0306/ti_components/drivers/pdk_01_10_02_07/packages/ti/drv/vps/include/vip/vps_cfgVipParser.h follow: it choosed VPS_VIP_LINE_CAPTURE_STYLE_HSYNC can be capture Horizontal Blanking Ancillary Data. so which other choose can capture Vertical Blanking Ancillary data?

vertical blanking data depends on the size of the vsync, no change required in VIP.