#ifndef XTC_MIX_INTERNAL_H
#define XTC_MIX_INTERNAL_H

#include "../project/project_internal.h"

typedef struct {
    uint64_t sample, tick;
    size_t track;
    unsigned int parameter;
    float value;
} xtc_mix_point;

typedef struct {
    xtc_track_info tracks[XTC_PROJECT_MAX_TRACKS];
    size_t count, offsets[XTC_PROJECT_MAX_TRACKS][2], lengths[XTC_PROJECT_MAX_TRACKS][2];
    xtc_mix_point points[XTC_MAX_AUTOMATION_POINTS];
    int any_solo;
} xtc_mix_snapshot;

xtc_result xtc_mix_prepare(const xtc_project *, unsigned int rate, xtc_mix_snapshot *);
size_t xtc_mix_track(const xtc_mix_snapshot *, uint64_t id);
/* side 0/1 stereo, 2 mono (gain only). */
float xtc_mix_level(const xtc_mix_snapshot *, size_t track, uint64_t sample, unsigned int side);
#endif