forked from KolibriOS/kolibrios
73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
|
/*
|
||
|
|
SDL_mixer: An audio mixer library based on the SDL library
|
||
|
|
Copyright (C) 1997-2012 Sam Lantinga <slouken@libsdl.org>
|
||
|
|
|
||
|
|
This software is provided 'as-is', without any express or implied
|
||
|
|
warranty. In no event will the authors be held liable for any damages
|
||
|
|
arising from the use of this software.
|
||
|
|
|
||
|
|
Permission is granted to anyone to use this software for any purpose,
|
||
|
|
including commercial applications, and to alter it and redistribute it
|
||
|
|
freely, subject to the following restrictions:
|
||
|
|
|
||
|
|
1. The origin of this software must not be misrepresented; you must not
|
||
|
|
claim that you wrote the original software. If you use this software
|
||
|
|
in a product, an acknowledgment in the product documentation would be
|
||
|
|
appreciated but is not required.
|
||
|
|
2. Altered source versions must be plainly marked as such, and must not be
|
||
|
|
misrepresented as being the original software.
|
||
|
|
3. This notice may not be removed or altered from any source distribution.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifdef MP3_MAD_MUSIC
|
||
|
|
|
||
|
|
#include "mad.h"
|
||
|
|
#include "SDL_rwops.h"
|
||
|
|
#include "SDL_audio.h"
|
||
|
|
#include "SDL_mixer.h"
|
||
|
|
|
||
|
|
#define MAD_INPUT_BUFFER_SIZE (5*8192)
|
||
|
|
#define MAD_OUTPUT_BUFFER_SIZE 8192
|
||
|
|
|
||
|
|
enum {
|
||
|
|
MS_input_eof = 0x0001,
|
||
|
|
MS_input_error = 0x0001,
|
||
|
|
MS_decode_eof = 0x0002,
|
||
|
|
MS_decode_error = 0x0004,
|
||
|
|
MS_error_flags = 0x000f,
|
||
|
|
|
||
|
|
MS_playing = 0x0100,
|
||
|
|
MS_cvt_decoded = 0x0200,
|
||
|
|
};
|
||
|
|
|
||
|
|
typedef struct {
|
||
|
|
SDL_RWops *rw;
|
||
|
|
int freerw;
|
||
|
|
struct mad_stream stream;
|
||
|
|
struct mad_frame frame;
|
||
|
|
struct mad_synth synth;
|
||
|
|
int frames_read;
|
||
|
|
mad_timer_t next_frame_start;
|
||
|
|
int volume;
|
||
|
|
int status;
|
||
|
|
int output_begin, output_end;
|
||
|
|
SDL_AudioSpec mixer;
|
||
|
|
SDL_AudioCVT cvt;
|
||
|
|
|
||
|
|
unsigned char input_buffer[MAD_INPUT_BUFFER_SIZE + MAD_BUFFER_GUARD];
|
||
|
|
unsigned char output_buffer[MAD_OUTPUT_BUFFER_SIZE];
|
||
|
|
} mad_data;
|
||
|
|
|
||
|
|
mad_data *mad_openFileRW(SDL_RWops *rw, SDL_AudioSpec *mixer, int freerw);
|
||
|
|
void mad_closeFile(mad_data *mp3_mad);
|
||
|
|
|
||
|
|
void mad_start(mad_data *mp3_mad);
|
||
|
|
void mad_stop(mad_data *mp3_mad);
|
||
|
|
int mad_isPlaying(mad_data *mp3_mad);
|
||
|
|
|
||
|
|
int mad_getSamples(mad_data *mp3_mad, Uint8 *stream, int len);
|
||
|
|
void mad_seek(mad_data *mp3_mad, double position);
|
||
|
|
void mad_setVolume(mad_data *mp3_mad, int volume);
|
||
|
|
|
||
|
|
#endif
|