/*

  Copyright (C) 2005, 2008, 2011 Rocky Bernstein <rocky@gnu.org>

  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 3 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, see <http://www.gnu.org/licenses/>.

*/

/*! Audio (via line output) related routines. */

#ifdef HAVE_CONFIG_H

# include "config.h"

# define __CDIO_CONFIG_H__ 1

#endif

#include <cdio/cdio.h>

#include <cdio/util.h>

#include <cdio/audio.h>

#include "cdio_private.h"

/* Return the number of seconds (discarding frame portion) of an MSF */

uint32_t

cdio_audio_get_msf_seconds(msf_t *p_msf) 

{

  return 

    cdio_from_bcd8(p_msf->m)*CDIO_CD_SECS_PER_MIN + cdio_from_bcd8(p_msf->s);

}

/*!

  Get volume of an audio CD.

  @param p_cdio the CD object to be acted upon.

*/

driver_return_code_t 

cdio_audio_get_volume (CdIo_t *p_cdio,  /*out*/ cdio_audio_volume_t *p_volume)

{

  cdio_audio_volume_t temp_audio_volume;

  if (!p_cdio) return DRIVER_OP_UNINIT;

  if (!p_volume) p_volume = &temp_audio_volume;

  if (p_cdio->op.audio_get_volume) {

    return p_cdio->op.audio_get_volume (p_cdio->env, p_volume);

  } else {

    return DRIVER_OP_UNSUPPORTED;

  }

}

/*!

  Playing CD through analog output

  @param p_cdio the CD object to be acted upon.

*/

driver_return_code_t 

cdio_audio_pause (CdIo_t *p_cdio) 

{

  if (!p_cdio) return DRIVER_OP_UNINIT;

  if (p_cdio->op.audio_pause) {

    return p_cdio->op.audio_pause (p_cdio->env);

  } else {

    return DRIVER_OP_UNSUPPORTED;

  }

}

/*!

  Playing CD through analog output at the given MSF.

  @param p_cdio the CD object to be acted upon.

*/

driver_return_code_t 

cdio_audio_play_msf (CdIo_t *p_cdio, msf_t *p_start_msf, msf_t *p_end_msf)

{

  if (!p_cdio) return DRIVER_OP_UNINIT;

  if (p_cdio->op.audio_play_msf) {

    return p_cdio->op.audio_play_msf (p_cdio->env, p_start_msf, p_end_msf);

  } else {

    return DRIVER_OP_UNSUPPORTED;

  }

}

/*!

  Playing CD through analog output

  @param p_cdio the CD object to be acted upon.

*/

driver_return_code_t 

cdio_audio_play_track_index (CdIo_t *p_cdio, cdio_track_index_t *p_track_index)

{

  if (!p_cdio) return DRIVER_OP_UNINIT;

  if (p_cdio->op.audio_play_track_index) {

    return p_cdio->op.audio_play_track_index (p_cdio->env, p_track_index);

  } else {

    return DRIVER_OP_UNSUPPORTED;

  }

}

/*!

  Get subchannel information.

  @param p_cdio the CD object to be acted upon.

*/

driver_return_code_t 

cdio_audio_read_subchannel (CdIo_t *p_cdio, cdio_subchannel_t *p_subchannel)

{

  if (!p_cdio) return DRIVER_OP_UNINIT;

  if (p_cdio->op.audio_read_subchannel) {

    return p_cdio->op.audio_read_subchannel(p_cdio->env, p_subchannel);

  } else {

    return DRIVER_OP_UNSUPPORTED;

  }

}

/*!

  Resume playing an audio CD.

  @param p_cdio the CD object to be acted upon.

*/

driver_return_code_t 

cdio_audio_resume (CdIo_t *p_cdio)

{

  if (!p_cdio) return DRIVER_OP_UNINIT;

  if (p_cdio->op.audio_resume) {

    return p_cdio->op.audio_resume(p_cdio->env);

  } else {

    return DRIVER_OP_UNSUPPORTED;

  }

}

/*!

  Set volume of an audio CD.

  @param p_cdio the CD object to be acted upon.

*/

driver_return_code_t 

cdio_audio_set_volume (CdIo_t *p_cdio, cdio_audio_volume_t *p_volume)

{

  if (!p_cdio) return DRIVER_OP_UNINIT;

  if (p_cdio->op.audio_set_volume) {

    return p_cdio->op.audio_set_volume(p_cdio->env, p_volume);

  } else {

    return DRIVER_OP_UNSUPPORTED;

  }

}

/*!

  Resume playing an audio CD.

  @param p_cdio the CD object to be acted upon.

*/

driver_return_code_t 

cdio_audio_stop (CdIo_t *p_cdio)

{

  if (!p_cdio) return DRIVER_OP_UNINIT;

  if (p_cdio->op.audio_stop) {

    return p_cdio->op.audio_stop(p_cdio->env);

  } else {

    return DRIVER_OP_UNSUPPORTED;

  }

}

/* 

 * Local variables:

 *  c-file-style: "gnu"

 *  tab-width: 8

 *  indent-tabs-mode: nil

 * End:

 */