display on screen
save to file
mode
channel
text color
apply to all boards
closed captioning is a method of encoding and displaying text such as movie dialog captions or stock quotes as part of ntsc video. the text is similar to movie subtitles in appearance. closed captioning is widely available on broadcast video, cable, videotapes, and videodisks.
the osprey-540 video driver provides a complete implementation of the closed captioning standard and special extensions that are made possible by the capabilities of a pc. at the moment, the osprey-540 only provides support for closed captioning on the analog video inputs. for more information, see no closed captions on digital video in section 8 - troubleshooting.
you can use closed captioning whenever the following conditions are met:
1 you must be viewing a videotape, videodisc, or broadcast material that has closed captioning content. look for a small “cc” logo on the packaging or in the program listing.
2 closed captioning is for north american ntsc video only, not for pal video.
3 closed captioning must be enabled in the osprey driver, using the closed caption dialog page as explained above.
4 video mode and channel 1 must normally be selected as explained above. you might use text mode or channel 2 in specialized instances.
5 in addition to the normal options of viewing or capturing closed captioning, you have the special capabilities to save the text to file as you view or capture it.