Flags from the AVI file index. The following values are defined:
Data is buffered and not drawn to the screen. Use this flag for fastest decompression.
Current frame is not a key frame.
Current frame does not contain any data, and the previous frame should be redrawn.
Current frame of video occurs before playback should start. For example, if playback will begin on frame 10, and frame 0 is the nearest previous key frame, frames 0 through 9 are sent to the driver with this flag set. The driver needs this data to display frame 10 properly.
Updates the screen based on data previously received. In this case, lpData should be ignored.
Pointer to a structure containing the data format. For video streams, this is a BITMAPINFOHEADER structure.
Pointer to the data to render.
Number of data bytes to render.
Time, in samples, when this data should be drawn. For video data this is normally a frame number.