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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 by Miika Pekkarinen
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef PCMBUF_H
#define PCMBUF_H
/* Guard buffer for crossfader when dsp is enabled. */
#define PCMBUF_GUARD 32768
/* PCM audio buffer. */
#define PCMBUF_SIZE (1*1024*1024)
void pcmbuf_init(void);
void pcmbuf_play_stop(void);
bool pcmbuf_is_crossfade_active(void);
/* These functions are for playing chained buffers of PCM data */
bool pcmbuf_add_chunk(void *addr, int size, void (*callback)(void));
int pcmbuf_num_used_buffers(void);
void pcmbuf_set_watermark(int numbytes, void (*callback)(int bytes_left));
void pcmbuf_set_boost_mode(bool state);
bool pcmbuf_is_lowdata(void);
void pcmbuf_flush_audio(void);
bool pcmbuf_crossfade_init(void);
void pcmbuf_add_event(void (*event_handler)(void));
unsigned int pcmbuf_get_latency(void);
bool pcmbuf_insert_buffer(char *buf, long length);
void pcmbuf_flush_buffer(long length);
void* pcmbuf_request_buffer(long length, long *realsize);
bool pcmbuf_is_crossfade_enabled(void);
void pcmbuf_crossfade_enable(bool on_off);
#endif
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