forked from len0rd/rockbox
		
	git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29787 a1c6a512-1295-4272-9138-f99709370657
		
			
				
	
	
		
			162 lines
		
	
	
	
		
			4.4 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			162 lines
		
	
	
	
		
			4.4 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /***************************************************************************
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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 Miika Pekkarinen
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|  *
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|  * This program is free software; you can redistribute it and/or
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|  * modify it under the terms of the GNU General Public License
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|  * as published by the Free Software Foundation; either version 2
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|  * of the License, or (at your option) any later version.
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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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| 
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| #ifndef _PLAYBACK_H
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| #define _PLAYBACK_H
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| 
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| #include <stdbool.h>
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| #include <stdlib.h>
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| #include "config.h"
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| 
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| #if CONFIG_CODEC == SWCODEC
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| /* Including the code for fast previews is entirely optional since it
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|    does add two more mp3entry's - for certain targets it may be less
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|    beneficial such as flash-only storage */
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| #if MEMORYSIZE > 2
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| #define AUDIO_FAST_SKIP_PREVIEW
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| #endif
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| 
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| #endif /* CONFIG_CODEC == SWCODEC */
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| 
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| #ifdef HAVE_ALBUMART
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| 
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| #include "bmp.h"
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| #include "metadata.h"
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| /*
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|  * Returns the handle id of the buffered albumart for the given slot id
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|  **/
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| int playback_current_aa_hid(int slot);
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| 
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| /*
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|  * Hands out an albumart slot for buffering albumart using the size
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|  * int the passed dim struct, it copies the data of dim in order to
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|  * be safe to be reused for other code
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|  *
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|  * The slot may be reused if other code calls this with the same dimensions
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|  * in dim, so if you change dim release and claim a new slot
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|  *
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|  * Save to call from other threads */
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| int playback_claim_aa_slot(struct dim *dim);
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| 
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| /*
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|  * Releases the albumart slot with given id
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|  * 
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|  * Save to call from other threads */
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| void playback_release_aa_slot(int slot);
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| 
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| struct bufopen_bitmap_data {
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|     struct dim *dim;
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|     struct mp3_albumart *embedded_albumart;
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| };
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| 
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| #endif
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| 
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| /* Functions */
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| bool audio_is_thread_ready(void);
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| int audio_track_count(void);
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| long audio_filebufused(void);
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| void audio_pre_ff_rewind(void);
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| void audio_skip(int direction);
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| void audio_hard_stop(void); /* Stops audio from serving playback */
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| 
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| void audio_set_cuesheet(int enable);
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| #ifdef HAVE_CROSSFADE
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| void audio_set_crossfade(int enable);
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| #endif
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| 
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| enum
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| {
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|     AUDIO_WANT_PLAYBACK = 0,
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|     AUDIO_WANT_VOICE,
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| };
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| bool audio_restore_playback(int type); /* Restores the audio buffer to handle the requested playback */
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| size_t audio_get_filebuflen(void);
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| bool audio_buffer_state_trashed(void);
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| 
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| /* Automatic transition? Only valid to call during the track change events,
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|    otherwise the result is undefined. */
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| bool audio_automatic_skip(void);
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| 
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| /* Define one constant that includes recording related functionality */
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| #if defined(HAVE_RECORDING) && !defined(SIMULATOR)
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| #define AUDIO_HAVE_RECORDING
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| #endif
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| 
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| enum {
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|     Q_NULL = 0,                 /* reserved */
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| 
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|     /* -> audio */
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|     Q_AUDIO_PLAY = 1,
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|     Q_AUDIO_STOP,
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|     Q_AUDIO_PAUSE,
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|     Q_AUDIO_SKIP,
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|     Q_AUDIO_PRE_FF_REWIND,
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|     Q_AUDIO_FF_REWIND,
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|     Q_AUDIO_FLUSH,
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|     Q_AUDIO_DIR_SKIP,
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| 
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|     /* pcmbuf -> audio */
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|     Q_AUDIO_TRACK_CHANGED,
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| 
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|     /* audio -> audio */
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|     Q_AUDIO_FILL_BUFFER,        /* continue buffering next track */
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| 
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|     /* buffering -> audio */
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|     Q_AUDIO_BUFFERING,          /* some buffer event */
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|     Q_AUDIO_FINISH_LOAD_TRACK,  /* metadata is buffered */
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|     Q_AUDIO_HANDLE_FINISHED,    /* some other type is buffered */
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| 
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|     /* codec -> audio (*) */
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|     Q_AUDIO_CODEC_SEEK_COMPLETE,
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|     Q_AUDIO_CODEC_COMPLETE,
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| 
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|     /* audio -> codec */
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|     Q_CODEC_LOAD,
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|     Q_CODEC_RUN,
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|     Q_CODEC_PAUSE,
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|     Q_CODEC_SEEK,
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|     Q_CODEC_STOP,
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|     Q_CODEC_UNLOAD,
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| 
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| 
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|     /*- miscellanous -*/
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| #ifdef AUDIO_HAVE_RECORDING
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|     /* -> codec */
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|     Q_AUDIO_LOAD_ENCODER,       /* load an encoder for recording */
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| #endif
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|     /* -> codec */
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|     Q_CODEC_DO_CALLBACK,
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| 
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| 
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|     /*- settings -*/
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| 
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| #ifdef HAVE_DISK_STORAGE
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|     /* -> audio */
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|     Q_AUDIO_UPDATE_WATERMARK,   /* buffering watermark needs updating */
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| #endif
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|     /* -> audio */
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|     Q_AUDIO_REMAKE_AUDIO_BUFFER, /* buffer needs to be reinitialized */
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| };
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| 
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| /* (*) If you change these, you must check audio_clear_track_notifications
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|        in playback.c for correctness */
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| 
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| #endif /* _PLAYBACK_H */
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