audio_mixer.c File Reference

#include <audio/audio_mixer.h>
#include <audio/audio_resampler.h>
#include <formats/rwav.h>
#include <memalign.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>

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Classes
struct	audio_mixer_sound
struct	audio_mixer_voice

Macros
#define	AUDIO_MIXER_MAX_VOICES   8
#define	AUDIO_MIXER_TEMP_BUFFER   8192

Functions
static bool	wav2float (const rwav_t *wav, float **pcm, size_t samples_out)
static bool	one_shot_resample (const float *in, size_t samples_in, unsigned rate, float **out, size_t *samples_out)
void	audio_mixer_init (unsigned rate)
void	audio_mixer_done (void)
audio_mixer_sound_t *	audio_mixer_load_wav (void *buffer, int32_t size)
audio_mixer_sound_t *	audio_mixer_load_ogg (void *buffer, int32_t size)
audio_mixer_sound_t *	audio_mixer_load_flac (void *buffer, int32_t size)
audio_mixer_sound_t *	audio_mixer_load_mp3 (void *buffer, int32_t size)
audio_mixer_sound_t *	audio_mixer_load_mod (void *buffer, int32_t size)
void	audio_mixer_destroy (audio_mixer_sound_t *sound)
static bool	audio_mixer_play_wav (audio_mixer_sound_t *sound, audio_mixer_voice_t *voice, bool repeat, float volume, audio_mixer_stop_cb_t stop_cb)
audio_mixer_voice_t *	audio_mixer_play (audio_mixer_sound_t *sound, bool repeat, float volume, audio_mixer_stop_cb_t stop_cb)
void	audio_mixer_stop (audio_mixer_voice_t *voice)
static void	audio_mixer_mix_wav (float *buffer, size_t num_frames, audio_mixer_voice_t *voice, float volume)
void	audio_mixer_mix (float *buffer, size_t num_frames, float volume_override, bool override)
float	audio_mixer_voice_get_volume (audio_mixer_voice_t *voice)
void	audio_mixer_voice_set_volume (audio_mixer_voice_t *voice, float val)

Variables
static struct audio_mixer_voice	s_voices [AUDIO_MIXER_MAX_VOICES]
static unsigned	s_rate = 0

Macro Definition Documentation

AUDIO_MIXER_MAX_VOICES

#define AUDIO_MIXER_MAX_VOICES   8

AUDIO_MIXER_TEMP_BUFFER

#define AUDIO_MIXER_TEMP_BUFFER   8192

Function Documentation

audio_mixer_destroy()

void audio_mixer_destroy

(

audio_mixer_sound_t *

sound

)

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audio_mixer_done()

void audio_mixer_done

(

void

)

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audio_mixer_init()

void audio_mixer_init

(

unsigned

rate

)

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audio_mixer_load_flac()

audio_mixer_sound_t* audio_mixer_load_flac	(	void *	buffer,
		int32_t	size
	)

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audio_mixer_load_mod()

audio_mixer_sound_t* audio_mixer_load_mod	(	void *	buffer,
		int32_t	size
	)

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audio_mixer_load_mp3()

audio_mixer_sound_t* audio_mixer_load_mp3	(	void *	buffer,
		int32_t	size
	)

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audio_mixer_load_ogg()

audio_mixer_sound_t* audio_mixer_load_ogg	(	void *	buffer,
		int32_t	size
	)

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audio_mixer_load_wav()

audio_mixer_sound_t* audio_mixer_load_wav	(	void *	buffer,
		int32_t	size
	)

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audio_mixer_mix()

void audio_mixer_mix	(	float *	buffer,
		size_t	num_frames,
		float	volume_override,
		bool	override
	)

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audio_mixer_mix_wav()

static void audio_mixer_mix_wav ( float *  buffer, size_t  num_frames, audio_mixer_voice_t *  voice, float  volume  )

static

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audio_mixer_play()

audio_mixer_voice_t* audio_mixer_play	(	audio_mixer_sound_t *	sound,
		bool	repeat,
		float	volume,
		audio_mixer_stop_cb_t	stop_cb
	)

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audio_mixer_play_wav()

static bool audio_mixer_play_wav ( audio_mixer_sound_t *  sound, audio_mixer_voice_t *  voice, bool  repeat, float  volume, audio_mixer_stop_cb_t  stop_cb  )

static

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audio_mixer_stop()

void audio_mixer_stop

(

audio_mixer_voice_t *

voice

)

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audio_mixer_voice_get_volume()

float audio_mixer_voice_get_volume

(

audio_mixer_voice_t *

voice

)

audio_mixer_voice_set_volume()

void audio_mixer_voice_set_volume	(	audio_mixer_voice_t *	voice,
		float	val
	)

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one_shot_resample()

static bool one_shot_resample ( const float *  in, size_t  samples_in, unsigned  rate, float **  out, size_t *  samples_out  )

static

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wav2float()

static bool wav2float ( const rwav_t *  wav, float **  pcm, size_t  samples_out  )

static

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Variable Documentation

s_rate

unsigned s_rate = 0

static

s_voices

struct audio_mixer_voice s_voices[AUDIO_MIXER_MAX_VOICES]

static