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BackwardScan

The operation to scan play at the specified Speed. This user function includes scan play and slow playback for backward navigation at any speed (except normal speed).

DWORD BackwardScan (wSpeed, bFast);

Arguments
DWORD wSpeed Speed of the stream (2 for x2, 4 for x4, 6 for x6, 8 for x8)
BOOL bFast TRUE if Fast-Forward, FALSE if Slow motion

Return value
Zero if successful. Otherwise returns an error code.
DVDE_ARG Arguments are not valid.
DVDE_UNAUTHORIZED Unauthorized operation.

Remarks
Backward slow motion is implemented. See revived for VCD, SVCD and CDDA revived for CDDA.

Figure 1.12: BackwardScan Operating Systems and Streaming Models
\begin{figure}\centering\begin{tabular}{\vert l\vert c\vert c\vert c\vert c\vert...
...$\bullet$& & & \\
Linux & & $\bullet$& & & \\
\hline
\end{tabular}\end{figure}



mabelsha 2002-03-26