| 摘要 |
<p>A hardware system is programmed with a common vertical blanking interval (VBI) scan line decoder (10) to support capture hardware of multiple vendors. The common decoder (10) includes a first and a second function for a capture driver (12) associated with a capture hardware to describe to the common decoder (10), the sample rate and the line pitch employed by the capture hardware respectively. The common decoder (10) further includes additional functions for the capture driver (12) to confirm the common decoder's (10) presence, register a call back function, specify a channel, and request decoding a field.</p> |
