Closed Captions hardware-decoding

[Eriond]

Has there been any attempts to use the "Closed Captioning" module of the conexant video encoder? I guess most TV sets do quite a good job in overlaying subtitles using their hardware TeleText chips.

Theres more to read about how this works in the conexant datasheet, chapter 1.3.34 and appendix D.

The basic is that CC data is sent to the encoder over the SMB/I2C bus, and the encoder uses line 22 or 23 depending on the current video system (PAL/SECAM/NTSC) to send the text data to the TV.

Regards,
Eriond

[ultrabrutal]

What's the point in this?

[gzusrawx]

one advantage would be that it would allow someone to use language filtering devices such as tv guardian which rely on the use of the cc to find out where bad words and such are.

[ultrabrutal]

I rest my case. No idea what that means hehe

[Gamester17]

It is explained in much more detail here:
http://sourceforge.net/tracker/index.php?func=detail&aid=817653&group_id=87054&atid=581841

Also see these related (but not exacly the same) requests for Closed Captions software-decoding:
http://sourceforge.net/tracker/index.php?func=detail&aid=817654&group_id=87054&atid=581841
http://xbmc.org/forum/showthread.php?t=6053

To answer Eriond question; No, no programmer has tried yet nor volunteered to implement either of those in XBMC.