CDseekblock(3dm)CDseekblock(3dm)NAME
CDseekblock, CDseekblockupdate - set read pointer for CD-ROM to start of
specified block
SYNOPSIS
#include <sys/types.h>
#include <dmedia/cdaudio.h>
unsigned long CDseekblock(CDPLAYER* cd, unsigned long block)
unsigned long CDseekblockupdate(CDPLAYER* cd, unsigned long block)
PARAMETERS
cd A pointer to the CDPLAYER structure representing the target CD-
ROM drive.
block The logical block number to set the pointer to.
RETURNED VALUE
If successful, CDseekblock(3dm) returns the logical block number to which
the pointer has been set. Otherwise -1 is returned and errno is set to
indicate the error.
DESCRIPTIONCDseekblock(3dm) sets the pointer that indicates the starting point of
the next read of digital audio data from a CD-ROM. The pointer is set to
the specified logical block number. Logical block numbers are returned
by CDseekblock. A location in absolute time code can be converted to a
logical block number by CDmsftoblock(3dm). One logical block is one
CDFRAME.
CDseekblock(3dm) does not verify that the location is readable or update
the status data until a subsequent call to CDreadda(3dm) has been made.
CDseekblockupdate(3dm) is slower (it reads the new location), but
guarantees that subsequent calls to CDgetstatus(3dm) are accurate.
SEE ALSOCDintro(3dm), CDclose(3dm), CDgetstatus(3dm), CDgettrackinfo(3dm),
CDmsftoblock(3dm), CDmsftoframe(3dm), CDopen(3dm), CDreadda(3dm),
CDseek(3dm), CDseektrack(3dm), CDtctoframe(3dm), cdframe(4)AUTHOR
Mark Callow. Additions by Brandon Corey.
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