include/xas/script.h


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#ifndef _XAS_SCRIPT_H
#define _XAS_SCRIPT_H

#include <sys/types.h>
#include <sys/time.h>

#include <xas/audio.h>
#include <xas/spatial.h>

enum xas_script_event_type {
    XAS_SCRIPT_EVENT_OFF,
    XAS_SCRIPT_EVENT_ON,
    XAS_SCRIPT_EVENT_SET_POSITION,
    XAS_SCRIPT_EVENT_SET_GAIN,
    XAS_SCRIPT_EVENT_SET_FREQUENCY,
    XAS_SCRIPT_EVENT_SET_BANK_INDEX
};

enum xas_script_object_type {
    XAS_SCRIPT_OBJECT_ANY,
    XAS_SCRIPT_OBJECT_SYNTH,
    XAS_SCRIPT_OBJECT_VOX,
    XAS_SCRIPT_OBJECT_BANK_PLAYER
};

typedef struct _xas_script_event xas_script_event;

struct _xas_script_event {
    enum xas_script_event_type type;
    enum xas_script_object_type objtype;

    xas_spatial_object *object;

    struct timeval timestamp;

    union {
        float gain;
        xas_spatial_coord point;
        size_t index;
        size_t frequency;
    };

    xas_script_event *next;
};

typedef struct _xas_script {
    xas_spatial_scene *scene;

    xas_script_event *first;

    size_t buffer_size;
} xas_script;

xas_script *xas_script_new(xas_spatial_scene *scene, size_t buffer_size);

void xas_script_destroy(xas_script *script);

int xas_script_add_event_off(xas_script *script,
                               xas_spatial_object *object,
                               struct timeval timestamp);

int xas_script_add_event_on(xas_script *script,
                              xas_spatial_object *object,
                              struct timeval timestamp);

int xas_script_add_set_position(xas_script *script,
                                  xas_spatial_object *object,
                                  struct timeval timestamp,
                                  xas_spatial_coord point);

int xas_script_add_set_gain(xas_script *script,
                              xas_spatial_object *object,
                              struct timeval timestamp,
                              float gain);

int xas_script_add_set_bank(xas_script *script,
                              xas_spatial_object *object,
                              struct timeval timestamp,
                              size_t index);

int xas_script_add_set_frequency(xas_script *script,
                                   xas_spatial_object *object,
                                   struct timeval timestamp,
                                   size_t frequency);

int xas_script_play(xas_script *script, xas_audio_stream *sink);

#endif /* _XAS_SCRIPT_H */