Hi Steve, Andy Walls wrote: > On Fri, 2009-07-31 at 00:56 -0700, Steve Chui wrote: >> I've a HVR1600 card with cx18 driver. Currently, I'm able to record >> analog programs with VBI embedded. Recently, I enabled the digital >> tuner on HVR1600 to start recording digital programs. The recording >> works great but no VBI. I wonder is VBI supported on digital >> recordings? > > As far as digital broadcasts are concerned, the CX23418 and cx18 driver > act simply as a passthrough from the broadcaster. > > There are captioning and other information encoded in the digital ATSC > or QAM streams from the broadcaster. (I can't recall the standards right > now.) Getting captioning from an ATSC or QAM stream is up to the > application. > > I have no idea what applications currently support displaying captions > from ATSC and North American QAM digital broadcasts.
I can confirm that MythTV can display captions embedded in ATSC streams. MythTV supports both EIA-608 captions (the older standard) and EIA-708 (newer standard with more features like user's ability to choose fonts & font sizes). The ATSC standard specifies that both types of captions should be provided by broadcasters. I should also mention that MythTV's support for EIA-708 leaves a lot to be desired. Fortunately, you can tell MythTV to favor EIA-608 captions. Helen _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users
