osd paramer configure interface

billy david

Genius 3900 points

i see the function

mcfw/src_bios6/links_c6xdsp/alg_link:AlgLink_OsdalgSetChOsdWinPrm

that just set the parameters of the osd win,i can not see how to configure the paramer algorithm?

the interface is not opened?

tks

0 Badri Narayanan over 12 years ago

What does parameter algorithm mean ? Which parameter are you referring to

0 billy david over 12 years ago in reply to Badri Narayanan

Genius 3900 points

for example the osd startX,startY and so on,i just see in the function AlgLink_OsdalgSetChOsdWinPrm

{

........

osdWinObj->osdWinPrm.startX = params->winPrm[i].startX;
osdWinObj->osdWinPrm.startY = params->winPrm[i].startY;

......

}

i want to know the principle how to set the startX position internally？i can not find about that part of souce code

tks

0 Badri Narayanan over 12 years ago in reply to billy david

The value updated in AlgLink_OsdalgSetChOsdWinPrm is used in

/dvr_rdk/mcfw/src_bios6/links_c6xdsp/alg_link/swosd/osdLink_alg.c

AlgLink_OsdalgProcessFrame

pSwOsdObj->graphicsWindowPrm.startX

0 billy david over 12 years ago in reply to Badri Narayanan

Genius 3900 points

hi Badri,thanks for your help.i have see the function AlgLink_OsdalgProcessFrame is called by the function

AlgLink_algProcessData which is when received the cmd "SYSTEM_CMD_NEW_DATA"

but the function AlgLink_OsdalgSetChOsdWinPrm which is when received the cmd "ALG_LINK_OSD_CMD_SET_CHANNEL_WIN_PRM".

so i am confused how the two function is related

0 Badri Narayanan over 12 years ago in reply to billy david

ALG_LINK_OSD_CMD_SET_CHANNEL_WIN_PRM will set the configuration.

The configuration is applied when processing the next video frame .The next video frame processing starts with SYSTEM_CMD_NEW_DATA processing.

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