rockbox/apps/playback.h
Michael Sevakis 5857c44017 Refactor audio thread to run both recording and playback.
Eliminates the pcmrec thread and keeps playback and recording engine
operation mutually-exclusive.

audio_thread.c contains the audio thread which branches to the
correct engine depending upon the request. It also handles the main
audio initialization.

Moves pcm_init into main.c just before dsp_init because I don't want
that one in audio_init in the new file.

(Also makes revision df6e1bc pointless ;)

Change-Id: Ifc1db24404e6d8dd9ac42d9f4dfbc207aa9a26e1
2013-05-31 03:20:35 -04:00

97 lines
2.8 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 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 _PLAYBACK_H
#define _PLAYBACK_H
#include <stdbool.h>
#include <stdlib.h>
#include "config.h"
#if CONFIG_CODEC == SWCODEC
/* Including the code for fast previews is entirely optional since it
does add two more mp3entry's - for certain targets it may be less
beneficial such as flash-only storage */
#if MEMORYSIZE > 2
#define AUDIO_FAST_SKIP_PREVIEW
#endif
#endif /* CONFIG_CODEC == SWCODEC */
#ifdef HAVE_ALBUMART
#include "bmp.h"
#include "metadata.h"
/*
* Returns the handle id of the buffered albumart for the given slot id
**/
int playback_current_aa_hid(int slot);
/*
* Hands out an albumart slot for buffering albumart using the size
* int the passed dim struct, it copies the data of dim in order to
* be safe to be reused for other code
*
* The slot may be reused if other code calls this with the same dimensions
* in dim, so if you change dim release and claim a new slot
*
* Save to call from other threads */
int playback_claim_aa_slot(struct dim *dim);
/*
* Releases the albumart slot with given id
*
* Save to call from other threads */
void playback_release_aa_slot(int slot);
struct bufopen_bitmap_data {
struct dim *dim;
struct mp3_albumart *embedded_albumart;
};
#endif
/* Functions */
int audio_track_count(void);
long audio_filebufused(void);
void audio_pre_ff_rewind(void);
void audio_skip(int direction);
void audio_set_cuesheet(bool enable);
#ifdef HAVE_CROSSFADE
void audio_set_crossfade(int enable);
#endif
enum
{
AUDIO_WANT_PLAYBACK = 0,
AUDIO_WANT_VOICE,
};
bool audio_restore_playback(int type); /* Restores the audio buffer to handle the requested playback */
size_t audio_get_filebuflen(void);
/* Automatic transition? Only valid to call during the track change events,
otherwise the result is undefined. */
bool audio_automatic_skip(void);
unsigned int playback_status(void);
#endif /* _PLAYBACK_H */