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Start to fill in cdio_get_preemphasis, cdio_get_copy_permit, and

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cdio_get_channels. Internals reworked a little for this.
This commit is contained in:
rocky
2004-12-31 05:47:36 +00:00
parent c51a6ba67e
commit 74045586bd
12 changed files with 253 additions and 234 deletions
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127
lib/driver/cdio.c
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@@ -1,5 +1,5 @@
/*
$Id: cdio.c,v 1.2 2004/12/30 11:13:50 rocky Exp $
$Id: cdio.c,v 1.3 2004/12/31 05:47:36 rocky Exp $
Copyright (C) 2003, 2004 Rocky Bernstein <rocky@panix.com>
Copyright (C) 2001 Herbert Valerio Riedel <hvr@gnu.org>
@@ -39,7 +39,7 @@
#include <cdio/logging.h>
#include "cdio_private.h"
static const char _rcsid[] = "$Id: cdio.c,v 1.2 2004/12/30 11:13:50 rocky Exp $";
static const char _rcsid[] = "$Id: cdio.c,v 1.3 2004/12/31 05:47:36 rocky Exp $";
const char *track_format2str[6] =
@@ -644,13 +644,40 @@ cdio_get_num_tracks (const CdIo *p_cdio)
}
}
/*! 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
cdio_get_track_channels(const CdIo *p_cdio, track_t i_track)
{
if (p_cdio->op.get_track_channels) {
return p_cdio->op.get_track_channels (p_cdio->env, i_track);
} else {
return -2;
}
}
/*! Return copy protection status on a track. Is this meaningful
if not an audio track?
*/
track_flag_t
cdio_get_track_copy_permit(const CdIo *p_cdio, track_t i_track)
{
if (p_cdio->op.get_track_copy_permit) {
return p_cdio->op.get_track_copy_permit (p_cdio->env, i_track);
} else {
return CDIO_TRACK_FLAG_UNKNOWN;
}
}
/*!
Get format of track.
*/
track_format_t
cdio_get_track_format(const CdIo *p_cdio, track_t i_track)
{
cdio_assert (p_cdio != NULL);
if (!p_cdio) return TRACK_FORMAT_ERROR;
if (p_cdio->op.get_track_format) {
return p_cdio->op.get_track_format (p_cdio->env, i_track);
@@ -748,6 +775,19 @@ cdio_get_track_msf(const CdIo *cdio, track_t track_num, /*out*/ msf_t *msf)
}
}
/*! Return copy protection status on a track. Is this meaningful
if not an audio track?
*/
track_flag_t
cdio_get_track_preemphasis(const CdIo *p_cdio, track_t i_track)
{
if (p_cdio->op.get_track_preemphasis) {
return p_cdio->op.get_track_preemphasis (p_cdio->env, i_track);
} else {
return CDIO_TRACK_FLAG_UNKNOWN;
}
}
/*!
Return the number of sectors between this track an the next. This
includes any pregap sectors before the start of the next track.
@@ -1131,87 +1171,6 @@ cdio_open_am_cd (const char *psz_source, const char *psz_access_mode)
}
/* Returns "set" or "clear" value or -1 (for error) if bit "bit" of
the track flag "i_track" is set/clear.
Taken from cdparanoia.
*/
static int
cdio_track_bitmap(const generic_img_private_t *p_env, track_t i_track,
int bit, int set, int clear)
{
return p_env->toc_init ? p_env->i_first_track : -1;
if( i_track < p_env->i_first_track
|| i_track > p_env->i_first_track + p_env->i_tracks ) {
cdio_warn ("invalid track number");
return(-1);
}
if (p_env->flags[i_track] & bit)
return(set);
else
return(clear);
}
/*! Return number of channels in track, 2 or 4 or -1 for error.
Not meaningful if track is not an audio track.
*/
int
cdio_track_channels(const CdIo *p_cdio, track_t i_track)
{
if (!p_cdio) return -1;
{
const generic_img_private_t *p_env
= (generic_img_private_t *) (p_cdio->env);
return(cdio_track_bitmap(p_env, i_track, 8, 4, 2));
}
}
/*! Return 1 if copy is permitted on the track, 0 if not, or -1 for error.
Is this meaningful if not an audio track?
*/
int
cdio_track_copy_permit(const CdIo *p_cdio, track_t i_track)
{
if (!p_cdio) return -1;
{
const generic_img_private_t *p_env
= (generic_img_private_t *) (p_cdio->env);
return(cdio_track_bitmap(p_env, i_track, 2, 1, 0));
}
}
/*! Return 1 if track has pre-emphasis, 0 if not, or -1 for error.
Is this meaningful if not an audio track?
pre-emphasis is a non linear frequency response.
*/
int
cdio_track_preemphasis(const CdIo *p_cdio, track_t i_track)
{
if (!p_cdio) return -1;
{
const generic_img_private_t *p_env
= (generic_img_private_t *) (p_cdio->env);
return(cdio_track_bitmap(p_env, i_track, 1, 1, 0));
}
}
#if 0
/* Use cdio_get_track_format instead of this. */
/*! Return 1 if track is an audio track, 0 if not, or -1 for error. */
int
cdio_track_audiop(const CdIo *p_cdio, track_t i_track)
{
if (!p_cdio) return -1;
{
const generic_img_private_t *p_env
= (generic_img_private_t *) (p_cdio->env);
return(cdio_track_bitmap(p_env, i_track, 4, 0, 1));
}
}
#endif
/*