/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2005 by Miika Pekkarinen * * 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 2 * of the License, or (at your option) any later version. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ****************************************************************************/ #ifndef PCMBUF_H #define PCMBUF_H #include /* Commit PCM data */ void *pcmbuf_request_buffer(int *count); void pcmbuf_write_complete(int count, unsigned long elapsed, off_t offset); /* Init */ size_t pcmbuf_init(unsigned char *bufend); /* Playback */ void pcmbuf_play_start(void); void pcmbuf_play_stop(void); void pcmbuf_pause(bool pause); /* Track change */ /* Track change origin type */ enum pcm_track_change_type { TRACK_CHANGE_NONE = 0, /* No track change pending */ TRACK_CHANGE_MANUAL, /* Manual change (from user) */ TRACK_CHANGE_AUTO, /* Automatic change (from codec) */ TRACK_CHANGE_END_OF_DATA, /* Expect no more data (from codec) */ }; void pcmbuf_monitor_track_change(bool monitor); void pcmbuf_start_track_change(enum pcm_track_change_type type); /* Crossfade */ #ifdef HAVE_CROSSFADE bool pcmbuf_is_crossfade_active(void); void pcmbuf_request_crossfade_enable(int setting); bool pcmbuf_is_same_size(void); #else /* Dummy functions with sensible returns */ static FORCE_INLINE bool pcmbuf_is_crossfade_active(void) { return false; } static FORCE_INLINE void pcmbuf_request_crossfade_enable(bool on_off) { return; (void)on_off; } static FORCE_INLINE bool pcmbuf_is_same_size(void) { return true; } #endif /* Debug menu, other metrics */ size_t pcmbuf_free(void); size_t pcmbuf_get_bufsize(void); int pcmbuf_used_descs(void); int pcmbuf_descs(void); /* Fading and channel volume control */ void pcmbuf_fade(bool fade, bool in); bool pcmbuf_fading(void); void pcmbuf_soft_mode(bool shhh); /* Time and position */ unsigned int pcmbuf_get_position_key(void); void pcmbuf_sync_position_update(void); /* Misc */ bool pcmbuf_is_lowdata(void); void pcmbuf_set_low_latency(bool state); #endif /* PCMBUF_H */