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The first all libcdio cdda_interface. There are some gaps could be

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filled.

cdda_inteface.h renamed to cdda.h

cdio_destroy moved from cdio.h to device.h
This commit is contained in:
rocky
2005-01-05 04:16:11 +00:00
parent 2c20dfb2ef
commit 7a2a44a814
17 changed files with 254 additions and 722 deletions
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137
lib/cdda_interface/toc.c
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@@ -1,6 +1,7 @@
/*
$Id: toc.c,v 1.1 2004/12/18 17:29:32 rocky Exp $
$Id: toc.c,v 1.2 2005/01/05 04:16:11 rocky Exp $
Copyright (C) 2005 Rocky Bernstein <rocky@panix.com>
Copyright (C) 1998 Monty xiphmont@mit.edu
derived from code (C) 1994-1996 Heiko Eissfeldt
@@ -25,17 +26,18 @@
#include "low_interface.h"
#include "utils.h"
long
cdda_track_firstsector(cdrom_drive_t *d,int track)
/*! Return the lsn for the start of track i_track */
lsn_t
cdda_track_firstsector(cdrom_drive_t *d, track_t i_track)
{
if(!d->opened){
cderror(d,"400: Device not open\n");
return(-1);
}
if (track == 0) {
if (i_track == 0) {
if (d->disc_toc[0].dwStartSector == 0) {
/* first track starts at lba 0 -> no pre-gap */
/* first track starts at lsn 0 -> no pre-gap */
cderror(d,"401: Invalid track number\n");
return(-1);
}
@@ -44,14 +46,15 @@ cdda_track_firstsector(cdrom_drive_t *d,int track)
}
}
if(track<0 || track>d->tracks){
if( i_track>d->tracks) {
cderror(d,"401: Invalid track number\n");
return(-1);
}
return(d->disc_toc[track-1].dwStartSector);
return(d->disc_toc[i_track-1].dwStartSector);
}
long
/*! Get first lsn of the first audio track. -1 is returned on error. */
lsn_t
cdda_disc_firstsector(cdrom_drive_t *d)
{
int i;
@@ -61,27 +64,29 @@ cdda_disc_firstsector(cdrom_drive_t *d)
}
/* look for an audio track */
for(i=0;i<d->tracks;i++)
if(cdda_track_audiop(d,i+1)==1) {
for ( i=0; i<d->tracks; i++ )
if( cdda_track_audiop(d, i+1)==1 ) {
if (i == 0) /* disc starts at lba 0 if first track is an audio track */
return 0;
else
return(cdda_track_firstsector(d,i+1));
return cdda_track_firstsector(d, i+1);
}
cderror(d,"403: No audio tracks on disc\n");
return(-1);
}
long
cdda_track_lastsector(cdrom_drive_t *d,int track)
/*! Get last lsn of the track. The lsn is generally one less than the
start of the next track. -1 is returned on error. */
lsn_t
cdda_track_lastsector(cdrom_drive_t *d, track_t i_track)
{
if(!d->opened){
if (!d->opened) {
cderror(d,"400: Device not open\n");
return(-1);
return -1;
}
if (track == 0) {
if (i_track == 0) {
if (d->disc_toc[0].dwStartSector == 0) {
/* first track starts at lba 0 -> no pre-gap */
cderror(d,"401: Invalid track number\n");
@@ -92,108 +97,92 @@ cdda_track_lastsector(cdrom_drive_t *d,int track)
}
}
if(track<1 || track>d->tracks){
if ( i_track<1 || i_track>d->tracks ) {
cderror(d,"401: Invalid track number\n");
return(-1);
return -1;
}
/* Safe, we've always the leadout at disc_toc[tracks] */
return(d->disc_toc[track].dwStartSector-1);
return(d->disc_toc[i_track].dwStartSector-1);
}
long
/*! Get last lsn of the last audio track. The last lssn generally one
less than the start of the next track after the audio track. -1 is
returned on error. */
lsn_t
cdda_disc_lastsector(cdrom_drive_t *d)
{
int i;
if(!d->opened){
if (!d->opened) {
cderror(d,"400: Device not open\n");
return(-1);
return -1;
}
/* look for an audio track */
for(i=d->tracks-1;i>=0;i--)
if(cdda_track_audiop(d,i+1)==1)
return(cdda_track_lastsector(d,i+1));
for ( i=d->tracks-1; i>=0; i-- )
if ( cdda_track_audiop(d,i+1) == 1 )
return (cdda_track_lastsector(d,i+1));
cderror(d,"403: No audio tracks on disc\n");
return(-1);
return -1;
}
long
track_t
cdda_tracks(cdrom_drive_t *d)
{
if(!d->opened){
if (!d->opened){
cderror(d,"400: Device not open\n");
return(-1);
return -1;
}
return(d->tracks);
}
int
cdda_sector_gettrack(cdrom_drive_t *d,long sector)
cdda_sector_gettrack(cdrom_drive_t *d, lsn_t lsn)
{
if(!d->opened){
if (!d->opened) {
cderror(d,"400: Device not open\n");
return(-1);
}else{
int i;
if (sector < d->disc_toc[0].dwStartSector)
return -1;
} else {
if (lsn < d->disc_toc[0].dwStartSector)
return 0; /* We're in the pre-gap of first track */
for(i=0;i<d->tracks;i++){
if(d->disc_toc[i].dwStartSector<=sector &&
d->disc_toc[i+1].dwStartSector>sector)
return (i+1);
}
cderror(d,"401: Invalid track number\n");
return -1;
return cdio_get_track(d->p_cdio, lsn);
}
}
static int
cdda_track_bitmap(cdrom_drive_t *d,int track,int bit,int set,int clear)
{
if(!d->opened){
cderror(d,"400: Device not open\n");
return(-1);
}
if (track == 0)
track = 1; /* map to first track number */
if(track<1 || track>d->tracks){
cderror(d,"401: Invalid track number\n");
return(-1);
}
if ((d->disc_toc[track-1].bFlags & bit))
return(set);
else
return(clear);
}
/*! Return number of channels in track: 2 or 4; -2 if not
implemented or -1 for error.
Not meaningful if track is not an audio track.
*/
int
cdda_track_channels(cdrom_drive_t *d,int track)
cdda_track_channels(cdrom_drive_t *d, track_t i_track)
{
return(cdda_track_bitmap(d,track,8,4,2));
return(cdio_get_track_channels(d->p_cdio, i_track));
}
/*! Return 1 is track is an audio track, 0 otherwise. */
int
cdda_track_audiop(cdrom_drive_t *d,int track)
cdda_track_audiop(cdrom_drive_t *d, track_t i_track)
{
return(cdda_track_bitmap(d,track,4,0,1));
track_format_t track_format = cdio_get_track_format(d->p_cdio, i_track);
return TRACK_FORMAT_AUDIO == track_format ? 1 : 0;
}
/*! Return 1 is track is an audio track, 0 otherwise. */
int
cdda_track_copyp(cdrom_drive_t *d,int track)
cdda_track_copyp(cdrom_drive_t *d, track_t i_track)
{
return(cdda_track_bitmap(d,track,2,1,0));
track_flag_t track_flag = cdio_get_track_copy_permit(d->p_cdio, i_track);
return CDIO_TRACK_FLAG_TRUE == track_flag ? 1 : 0;
}
/*! Return 1 is audio track has linear preemphasis set, 0 otherwise.
Only makes sense for audio tracks.
*/
int
cdda_track_preemp(cdrom_drive_t *d, int track)
cdda_track_preemp(cdrom_drive_t *d, track_t i_track)
{
return(cdda_track_bitmap(d,track,1,1,0));
track_flag_t track_flag = cdio_get_track_preemphasis(d->p_cdio, i_track);
return CDIO_TRACK_FLAG_TRUE == track_flag ? 1 : 0;
}