This header is used by DirectShow. For more information, see:
il21dec.h contains the following programming interfaces:
Interfaces
| IAMLine21Decoder The IAMLine21Decoder interface sets and retrieves information about closed captions.The Line 21 Decoder filter exposes this interface. |
Enumerations
| AM_LINE21_CCLEVEL Indicates the closed caption decoder level. |
| AM_LINE21_CCSERVICE Indicates the closed captioning service. |
| AM_LINE21_CCSTATE Indicates the closed captioning state (on or off). |
| AM_LINE21_DRAWBGMODE Indicates the closed captioning text background mode. |