[linux-dvb] atsc closed captions

Steven Toth stoth at linuxtv.org
Mon Jan 21 00:16:16 CET 2008


CityK wrote:
> Jonathan Isom wrote:
>> Hi
>>    I was wondering if anyone on the list knows of an app the displays
>> atsc closed captions.
>> I have a kworld atsc 110 and 115.  Mythtv used to display cc data with
>> the 110 but now doesn't
>> which leads me to believe that locally they are broadcasting eia-708
>> now.  Am I in the boat of
>> waiting for this to be implemented or is there a way to get it
>> working( preferably without mythtv
>> required.).
>>
>> any ideas would be appreciated
> 
> There is some introductory info about closed captions for digital in an 
> v4l wiki article:
> http://www.linuxtv.org/v4lwiki/index.php/Text_capture
> 
> I had begun editing it a while ago, but haven't got back to it.  I don't 
> really know/remember how helpful its contents would be for you.

They're buried in the video stream, 708 format IIRC. It's pretty trivial 
to extract them and it should be done but the application (shared 
library?), it's not a kernel

- Steve




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