| /*************************************************************************** |
| * __________ __ ___. |
| * 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 |
| |
| void pcmbuf_init(long bufsize); |
| long pcmbuf_get_bufsize(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)); |
| |
| #ifdef HAVE_ADJUSTABLE_CPU_FREQ |
| void pcmbuf_boost(bool state); |
| void pcmbuf_set_boost_mode(bool state); |
| #else |
| #define pcmbuf_boost(state) do { } while(0) |
| #define pcmbuf_set_boost_mode(state) do { } while(0) |
| #endif |
| bool pcmbuf_is_lowdata(void); |
| void pcmbuf_flush_audio(void); |
| void pcmbuf_play_start(void); |
| bool pcmbuf_crossfade_init(bool manual_skip); |
| void pcmbuf_add_event(void (*event_handler)(void)); |
| void pcmbuf_set_position_callback(void (*callback)(int size)); |
| 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); |
| |
| int pcmbuf_usage(void); |
| int pcmbuf_mix_usage(void); |
| void pcmbuf_beep(int frequency, int duration, int amplitude); |
| void pcmbuf_reset_mixpos(void); |
| void pcmbuf_mix(char *buf, long length); |
| |
| #endif |