/***************************************************************************
* Copyright (C) 2009 by Ilya Kotov *
* forkotov02@hotmail.ru *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <QObject>
#include <QRegExp>
#include <QSettings>
#include <cdio/cdtext.h>
#include <cdio/track.h>
#include <cdio/cdda.h>
#include <cdio/audio.h>
#include <cdio/sector.h>
#include <cdio/cd_types.h>
#include <cdio/logging.h>
#include <qmmp/constants.h>
#include <qmmp/buffer.h>
#include <qmmp/output.h>
#include <qmmp/recycler.h>
#define CDDA_SECTORS 8
#include "decoder_cdaudio.h"
static void log_handler (cdio_log_level_t level, const char message[])
{
QString str = QString::fromLocal8Bit(message).trimmed();
switch (level)
{
case CDIO_LOG_DEBUG:
qDebug("DecoderCDAudio: cdio message: %s (level=debug)", qPrintable(str));
case CDIO_LOG_INFO:
qDebug("DecoderCDAudio: cdio message: %s (level=info)", qPrintable(str));
return;
default:
qWarning("DecoderCDAudio: cdio message: %s (level=error)", qPrintable(str));
}
}
// Decoder class
DecoderCDAudio::DecoderCDAudio(QObject *parent, DecoderFactory *d, const QString &url, Output *o)
: Decoder(parent, d, o)
{
m_inited = FALSE;
m_user_stop = FALSE;
m_output_buf = 0;
m_output_bytes = 0;
m_output_at = 0;
m_bks = 0;
m_done = FALSE;
m_finish = FALSE;
m_bitrate = 0;
m_seekTime = -1.0;
m_totalTime = 0.0;
m_first_sector = -1;
m_last_sector = -1;
m_current_sector = -1;
m_url = url;
m_cdio = 0;
}
DecoderCDAudio::~DecoderCDAudio()
{
deinit();
if (m_output_buf)
delete [] m_output_buf;
m_output_buf = 0;
}
QList <CDATrack> DecoderCDAudio::generateTrackList()
{
//read settings
QSettings settings(Qmmp::configFile(), QSettings::IniFormat);
int cd_speed = settings.value("cdaudio/speed", 0).toInt();
bool use_cd_text = settings.value("cdaudio/cdtext", TRUE).toBool();
QList <CDATrack> tracks;
cdio_log_set_handler(log_handler); //setup cdio log handler
char **cd_drives = cdio_get_devices_with_cap(0, CDIO_FS_AUDIO, TRUE); //get drive list with CDA disks
CdIo_t *cdio = 0;
// open first audio capable cd drive
if (cd_drives && *cd_drives)
{
cdio = cdio_open_cd(*cd_drives);
if (!cdio)
{
qWarning("DecoderCDAudio: failed to open CD.");
return tracks;
}
qDebug("DecoderCDAudio: found cd audio capable drive \"%s\"", *cd_drives);
}
else
{
qWarning("DecoderCDAudio: unable to find cd audio drive.");
return tracks;
}
if (cd_drives && *cd_drives) //free device list
cdio_free_device_list(cd_drives);
if (cd_speed)
{
qDebug("DecoderCDAudio: setting drive speed to %dX.", cd_speed);
if (cdio_set_speed(cdio, 1) != DRIVER_OP_SUCCESS)
qWarning("DecoderCDAudio: unable to set drive speed to %dX.", cd_speed);
}
cdrom_drive_t *pcdrom_drive = cdio_cddap_identify_cdio(cdio, 1, 0); //create paranoya CD-ROM object
//get first and last track numbers
int first_track_number = cdio_get_first_track_num(pcdrom_drive->p_cdio);
int last_track_number = cdio_get_last_track_num(pcdrom_drive->p_cdio);
if ((first_track_number == CDIO_INVALID_TRACK) || (last_track_number == CDIO_INVALID_TRACK))
{
qWarning("DecoderCDAudio: invalid first (last) track number.");
cdio_destroy(cdio);
cdio = 0;
return tracks;
}
//fill track list
for (int i = first_track_number; i <= last_track_number; ++i)
{
CDATrack t;
t.first_sector = cdio_get_track_lsn(pcdrom_drive->p_cdio, i);
t.last_sector = cdio_get_track_last_lsn(pcdrom_drive->p_cdio, i);
t.info.setLength((t.last_sector - t.first_sector +1) / 75);
t.info.setMetaData(Qmmp::TRACK, i);
t.info.setPath(QString("cdda:///track%1.cda").arg(i, 2, 10, QChar('0')));
if ((t.first_sector == CDIO_INVALID_LSN) || (t.last_sector== CDIO_INVALID_LSN))
{
qWarning("DecoderCDAudio: invalid stard(end) lsn for the track %d.", i);
tracks.clear();
cdio_destroy(cdio);
cdio = 0;
return tracks;
}
//cd text
cdtext_t *cdtext = use_cd_text ? cdio_get_cdtext(pcdrom_drive->p_cdio, i) : 0;
if (cdtext && cdtext->field[CDTEXT_TITLE])
{
t.info.setMetaData(Qmmp::TITLE, QString::fromLocal8Bit(cdtext->field[CDTEXT_TITLE]));
t.info.setMetaData(Qmmp::ARTIST, QString::fromLocal8Bit(cdtext->field[CDTEXT_PERFORMER]));
t.info.setMetaData(Qmmp::GENRE, QString::fromLocal8Bit(cdtext->field[CDTEXT_GENRE]));
}
else
t.info.setMetaData(Qmmp::TITLE, QString("CDA Track %1").arg(i, 2, 10, QChar('0')));
tracks << t;
}
qDebug("DecoderCDAudio: found %d audio tracks", tracks.size());
cdio_destroy(cdio);
cdio = 0;
return tracks;
}
qint64 DecoderCDAudio::calculateTrackLength(lsn_t startlsn, lsn_t endlsn)
{
return ((endlsn - startlsn + 1) * 1000) / 75;
}
void DecoderCDAudio::stop()
{
m_user_stop = TRUE;
}
void DecoderCDAudio::flush(bool final)
{
ulong min = final ? 0 : m_bks;
while ((! m_done && ! m_finish) && m_output_bytes > min)
{
output()->recycler()->mutex()->lock ();
while ((! m_done && ! m_finish) && output()->recycler()->full())
{
mutex()->unlock();
output()->recycler()->cond()->wait(output()->recycler()->mutex());
mutex()->lock ();
m_done = m_user_stop;
}
if (m_user_stop || m_finish)
{
m_inited = FALSE;
m_done = TRUE;
}
else
{
m_output_bytes -= produceSound(m_output_buf, m_output_bytes, m_bitrate, 2);
m_output_at = m_output_bytes;
}
if (output()->recycler()->full())
output()->recycler()->cond()->wakeOne();
output()->recycler()->mutex()->unlock();
}
}
bool DecoderCDAudio::initialize()
{
m_bks = Buffer::size();
m_inited = m_user_stop = m_done = m_finish = FALSE;
m_bitrate = 0;
m_seekTime = -1.0;
m_totalTime = 0.0;
int track_number = -1;
//extract track from url
QRegExp rx_cdda("^cdda\\:///track([0-9]+)\\.cda");
if (rx_cdda.indexIn(m_url) > -1)
track_number = rx_cdda.cap(1).toInt();
else
{
qWarning("DecoderCDAudio: invalid url: %s", qPrintable(m_url));
return FALSE;
}
if (!m_output_buf) //output buffer
m_output_buf = new char[globalBufferSize];
QList <CDATrack> tracks = DecoderCDAudio::generateTrackList(); //generate track list
if (tracks.isEmpty())
{
qWarning("DecoderCDAudio: initialize failed");
return FALSE;
}
//find track by number
int track_at = -1;
for (int i = 0; i < tracks.size(); ++i)
if (tracks[i].info.metaData(Qmmp::TRACK).toInt() == track_number)
{
track_at = i;
break;
}
if (track_at < 0)
{
qWarning("DecoderCDAudio: invalid track number");
return FALSE;
}
char **cd_drives = cdio_get_devices_with_cap(0, CDIO_FS_AUDIO, TRUE); //get drive list with CDA disks
// open first audio capable cd drive
if (cd_drives && *cd_drives)
{
m_cdio = cdio_open_cd(*cd_drives);
if (!m_cdio)
{
qWarning("DecoderCDAudio: failed to open CD.");
return FALSE;
}
qDebug("DecoderCDAudio: found cd audio capable drive \"%s\"", *cd_drives);
}
else
{
qWarning("DecoderCDAudio: unable to find cd audio drive.");
return FALSE;
}
if (cd_drives && *cd_drives) //free device list
cdio_free_device_list(cd_drives);
configure(44100, 2, 16);
m_bitrate = 1411;
m_totalTime = tracks[track_at].info.length();
m_first_sector = tracks[track_at].first_sector;
m_current_sector = tracks[track_at].first_sector;
m_last_sector = tracks[track_at].last_sector;
stateHandler()->dispatch(tracks[track_at].info.metaData()); //send metadata
m_inited = TRUE;
qDebug("DecoderCDAudio: initialize succes");
return TRUE;
}
qint64 DecoderCDAudio::lengthInSeconds()
{
if (! m_inited)
return 0;
return m_totalTime;
}
void DecoderCDAudio::seek(qint64 pos)
{
m_seekTime = pos;
}
void DecoderCDAudio::deinit()
{
m_inited = m_user_stop = m_done = m_finish = FALSE;
m_bitrate = 0;
if (m_cdio)
{
cdio_destroy(m_cdio);
m_cdio = 0;
}
}
void DecoderCDAudio::run()
{
long len = 0;
mutex()->lock ();
if (!m_inited)
{
mutex()->unlock();
return;
}
mutex()->unlock();
while (!m_done && !m_finish)
{
mutex()->lock ();
if (m_seekTime >= 0.0)
{
m_current_sector = m_first_sector + m_seekTime * 75;
m_seekTime = -1.0;
}
lsn_t secorts_to_read = qMin(CDDA_SECTORS, (m_last_sector - m_current_sector + 1));
if (secorts_to_read <= 0)
len = 0;
else
{
if (cdio_read_audio_sectors(m_cdio, m_output_buf + m_output_at,
m_current_sector, secorts_to_read) != DRIVER_OP_SUCCESS)
len = -1;
else
{
len = secorts_to_read * CDIO_CD_FRAMESIZE_RAW;
m_current_sector += secorts_to_read;
}
}
if (len > 0)
{
m_output_at += len;
m_output_bytes += len;
if (output())
flush();
}
else if (len == 0)
{
flush(TRUE);
if (output())
{
output()->recycler()->mutex()->lock ();
// end of stream
while (! output()->recycler()->empty() && ! m_user_stop)
{
output()->recycler()->cond()->wakeOne();
mutex()->unlock();
output()->recycler()->cond()->wait(output()->recycler()->mutex());
mutex()->lock ();
}
output()->recycler()->mutex()->unlock();
}
m_done = TRUE;
m_finish = !m_user_stop;
}
else
{
qWarning("DecoderCDAudio: Error while decoding stream, disk to be corrupted");
m_finish = TRUE;
}
mutex()->unlock();
}
mutex()->lock ();
if (m_finish)
finish();
mutex()->unlock();
deinit();
}
