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music_flac.h
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music_flac.h
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/*
SDL_mixer: An audio mixer library based on the SDL library
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
Header to handle loading FLAC music files in SDL.
~ Austen Dicken (admin@cvpcs.org)
*/
/* $Id: $ */
#ifdef FLAC_MUSIC
#include <FLAC/stream_decoder.h>
typedef struct {
FLAC__uint64 sample_size;
unsigned sample_rate;
unsigned channels;
unsigned bits_per_sample;
FLAC__uint64 total_samples;
// the following are used to handle the callback nature of the writer
int max_to_read;
char *data; // pointer to beginning of data array
int data_len; // size of data array
int data_read; // amount of data array used
char *overflow; // pointer to beginning of overflow array
int overflow_len; // size of overflow array
int overflow_read; // amount of overflow array used
} FLAC_Data;
typedef struct {
int playing;
int volume;
int section;
FLAC__StreamDecoder *flac_decoder;
FLAC_Data flac_data;
SDL_RWops *rwops;
SDL_AudioCVT cvt;
int len_available;
Uint8 *snd_available;
} FLAC_music;
/* Initialize the FLAC player, with the given mixer settings
This function returns 0, or -1 if there was an error.
*/
extern int FLAC_init(SDL_AudioSpec *mixer);
/* Set the volume for a FLAC stream */
extern void FLAC_setvolume(FLAC_music *music, int volume);
/* Load a FLAC stream from the given file */
extern FLAC_music *FLAC_new(const char *file);
/* Load an FLAC stream from an SDL_RWops object */
extern FLAC_music *FLAC_new_RW(SDL_RWops *rw);
/* Start playback of a given FLAC stream */
extern void FLAC_play(FLAC_music *music);
/* Return non-zero if a stream is currently playing */
extern int FLAC_playing(FLAC_music *music);
/* Play some of a stream previously started with FLAC_play() */
extern int FLAC_playAudio(FLAC_music *music, Uint8 *stream, int len);
/* Stop playback of a stream previously started with FLAC_play() */
extern void FLAC_stop(FLAC_music *music);
/* Close the given FLAC stream */
extern void FLAC_delete(FLAC_music *music);
/* Jump (seek) to a given position (time is in seconds) */
extern void FLAC_jump_to_time(FLAC_music *music, double time);
#endif /* FLAC_MUSIC */