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/* gstcdplay
* Copyright (c) 2002 Charles Schmidt <cbschmid@uiuc.edu>
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
gboolean cd_init(struct cd *cd,const gchar *device)
{
struct cdrom_tochdr toc_header;
struct cdrom_tocentry toc_entry;
guint i;
cd->fd = open(device,O_RDONLY | O_NONBLOCK);
if (cd->fd == -1) {
return FALSE;
}
/* get the toc header information */
if (ioctl(cd->fd,CDROMREADTOCHDR,&toc_header) != 0) {
close(cd->fd);
cd->fd = -1;
return FALSE;
}
/* read each entry in the toc header */
for (i = 1; i <= toc_header.cdth_trk1; i++) {
toc_entry.cdte_format = CDROM_MSF;
toc_entry.cdte_track = i;
if (ioctl(cd->fd,CDROMREADTOCENTRY,&toc_entry) != 0) {
close(cd->fd);
cd->fd = -1;
return FALSE;
}
cd->tracks[i].minute = toc_entry.cdte_addr.msf.minute;
cd->tracks[i].second = toc_entry.cdte_addr.msf.second;
cd->tracks[i].frame = toc_entry.cdte_addr.msf.frame;
cd->tracks[i].data_track = (toc_entry.cdte_ctrl == CDROM_DATA_TRACK);
}
/* read the leadout */
toc_entry.cdte_track = CDROM_LEADOUT;
toc_entry.cdte_format = CDROM_MSF;
if (ioctl(cd->fd,CDROMREADTOCENTRY,&toc_entry) != 0) {
close(cd->fd);
cd->fd = -1;
return FALSE;
}
cd->tracks[LEADOUT].minute = toc_entry.cdte_addr.msf.minute;
cd->tracks[LEADOUT].second = toc_entry.cdte_addr.msf.second;
cd->tracks[LEADOUT].frame = toc_entry.cdte_addr.msf.frame;
cd->num_tracks = toc_header.cdth_trk1;
return TRUE;
}
gboolean cd_start(struct cd *cd,gint start_track,gint end_track)
{
struct cdrom_msf msf;
if (cd->fd == -1) {
return FALSE;
}
cd_fix_track_range(cd,&start_track,&end_track);
msf.cdmsf_min0 = cd->tracks[start_track].minute;
msf.cdmsf_sec0 = cd->tracks[start_track].second;
msf.cdmsf_frame0 = cd->tracks[start_track].frame;
if (end_track == LEADOUT) {
msf.cdmsf_min1 = cd->tracks[end_track].minute;
msf.cdmsf_sec1 = cd->tracks[end_track].second;
msf.cdmsf_frame1 = cd->tracks[end_track].frame;
} else {
msf.cdmsf_min1 = cd->tracks[end_track+1].minute;
msf.cdmsf_sec1 = cd->tracks[end_track+1].second;
msf.cdmsf_frame1 = cd->tracks[end_track+1].frame;
}
if (ioctl(cd->fd,CDROMPLAYMSF,&msf) != 0) {
return FALSE;
}
return TRUE;
}
gboolean cd_pause(struct cd *cd)
{
if (cd->fd == -1) {
return FALSE;
}
if (ioctl(cd->fd,CDROMPAUSE,NULL) != 0) {
return FALSE;
}
return TRUE;
}
gboolean cd_resume(struct cd *cd)
{
if (cd->fd == -1) {
return FALSE;
}
if (ioctl(cd->fd,CDROMRESUME,NULL) != 0) {
return FALSE;
}
return TRUE;
}
gboolean cd_stop(struct cd *cd)
{
if (cd->fd == -1) {
return FALSE;
}
if (ioctl(cd->fd,CDROMSTOP,NULL) != 0) {
return FALSE;
}
return TRUE;
}
/* -1 for error, 0 for not playing, 1 for playing */
CDStatus cd_status(struct cd *cd)
{
struct cdrom_subchnl sub_channel;
if (cd->fd == -1) {
return -1;
}
sub_channel.cdsc_format = CDROM_MSF;
if (ioctl(cd->fd,CDROMSUBCHNL,&sub_channel) != 0) {
return -1;
}
switch (sub_channel.cdsc_audiostatus) {
case CDROM_AUDIO_COMPLETED:
return CD_COMPLETED;
break;
case CDROM_AUDIO_PLAY:
case CDROM_AUDIO_PAUSED:
return CD_PLAYING;
break;
case CDROM_AUDIO_ERROR:
default:
return CD_ERROR;
}
}
gint cd_current_track(struct cd *cd)
{
struct cdrom_subchnl sub_channel;
if (cd->fd == -1) {
return -1;
}
sub_channel.cdsc_format = CDROM_MSF;
if (ioctl(cd->fd,CDROMSUBCHNL,&sub_channel) != 0) {
return -1;
}
return sub_channel.cdsc_trk;
}
gboolean cd_close(struct cd *cd)
{
if (cd->fd == -1) {
return TRUE;
}
if (close(cd->fd) != 0) {
return FALSE;
}
cd->fd = -1;
return TRUE;
}
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