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