2005-03-18 11:39:28 +00:00
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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 Linus Nielsen Feltzing
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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 PCM_PLAYBACK_H
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#define PCM_PLAYBACK_H
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2005-06-26 19:41:29 +00:00
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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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2005-06-05 23:05:10 +00:00
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#define PCMBUF_SIZE (1*1024*1024)
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2005-03-31 06:49:10 +00:00
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void pcm_init(void);
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2005-03-28 00:00:24 +00:00
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void pcm_set_frequency(unsigned int frequency);
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2005-04-14 11:51:31 +00:00
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/* This is for playing "raw" PCM data */
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2005-03-18 11:39:28 +00:00
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void pcm_play_data(const unsigned char* start, int size,
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void (*get_more)(unsigned char** start, long* size));
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2005-04-14 11:51:31 +00:00
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2005-03-18 11:39:28 +00:00
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void pcm_play_stop(void);
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2005-03-31 06:49:10 +00:00
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void pcm_play_pause(bool play);
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2005-03-18 11:39:28 +00:00
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bool pcm_is_playing(void);
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2005-06-29 20:50:58 +00:00
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bool pcm_is_crossfade_active(void);
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2005-03-18 11:39:28 +00:00
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2005-04-14 11:51:31 +00:00
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/* These functions are for playing chained buffers of PCM data */
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void pcm_play_init(void);
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void pcm_play_start(void);
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bool pcm_play_add_chunk(void *addr, int size, void (*callback)(void));
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int pcm_play_num_used_buffers(void);
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void pcm_play_set_watermark(int numbytes, void (*callback)(int bytes_left));
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2005-06-05 23:05:10 +00:00
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void pcm_set_boost_mode(bool state);
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2005-06-07 06:34:54 +00:00
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bool pcm_is_lowdata(void);
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2005-06-29 21:13:46 +00:00
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void pcm_flush_audio(void);
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2005-06-20 14:27:06 +00:00
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bool pcm_crossfade_init(void);
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2005-06-15 18:59:04 +00:00
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void audiobuffer_add_event(void (*event_handler)(void));
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2005-06-05 23:05:10 +00:00
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unsigned int audiobuffer_get_latency(void);
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2005-06-27 19:29:49 +00:00
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bool pcm_insert_buffer(char *buf, long length);
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void pcm_flush_buffer(long length);
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void* pcm_request_buffer(long length, long *realsize);
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2005-06-10 10:58:45 +00:00
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bool pcm_is_crossfade_enabled(void);
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2005-06-09 09:47:00 +00:00
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void pcm_crossfade_enable(bool on_off);
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2005-06-05 23:05:10 +00:00
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2005-03-18 11:39:28 +00:00
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#endif
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