MCI_STATUS_LENGTH on Windows returns one frame less than the total

track length for the last track on a CD.  This also affects queries
for the total length of the CD.
This commit is contained in:
James Abbatiello 2000-09-27 01:18:08 +00:00 committed by Alexandre Julliard
parent ab170a9c84
commit aad78b91f7
1 changed files with 8 additions and 1 deletions

View File

@ -440,8 +440,15 @@ static DWORD MCICDA_Status(UINT wDevID, DWORD dwFlags, LPMCI_STATUS_PARMS lpParm
if (lpParms->dwTrack > wmcda->wcda.nTracks || lpParms->dwTrack == 0)
return MCIERR_OUTOFRANGE;
lpParms->dwReturn = wmcda->wcda.lpdwTrackLen[lpParms->dwTrack - 1];
/* Windows returns one frame less than the total track length for the
last track on the CD. See CDDB HOWTO. Verified on Win95OSR2. */
if (lpParms->dwTrack == wmcda->wcda.nTracks)
lpParms->dwReturn--;
} else {
lpParms->dwReturn = wmcda->wcda.dwLastFrame;
/* Sum of the lengths of all of the tracks. Inherits the
'off by one frame' behavior from the length of the last track.
See above comment. */
lpParms->dwReturn = wmcda->wcda.dwLastFrame - wmcda->wcda.dwFirstFrame - 1;
}
lpParms->dwReturn = MCICDA_CalcTime(wmcda,
(wmcda->dwTimeFormat == MCI_FORMAT_TMSF)