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76 lines
1.6 KiB
C
76 lines
1.6 KiB
C
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/**
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* SPDX-FileCopyrightText: Copyright (C) 2024 ZeldaRET
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* SPDX-License-Identifier: MPL-2.0
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#ifndef AIFC_H_
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#define AIFC_H_
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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typedef struct {
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int32_t order;
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int32_t npredictors;
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} ALADPCMbookhead;
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typedef int16_t ALADPCMbookstate[];
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typedef struct {
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uint32_t start;
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uint32_t end;
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uint32_t count;
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int16_t state[16];
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} ALADPCMloop;
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typedef struct {
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int16_t id;
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uint32_t pos;
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char *label;
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} aifc_marker;
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typedef struct {
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const char *path; // for debugging
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// COMM
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uint32_t num_frames;
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int16_t num_channels;
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int16_t sample_size;
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double sample_rate;
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uint32_t compression_type;
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char *compression_name;
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// SSND
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long ssnd_offset;
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size_t ssnd_size;
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// INST
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bool has_inst;
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int8_t basenote;
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int8_t detune;
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// MARK
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size_t num_markers;
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aifc_marker (*markers)[];
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// APPL::stoc::VADPCMCODES
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bool has_book;
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ALADPCMbookhead book;
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ALADPCMbookstate *book_state;
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// APPL::stoc::VADPCMLOOPS
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bool has_loop;
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ALADPCMloop loop;
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} aifc_data;
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#define BUG_BUF_SIZE 0x10000
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void
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aifc_read(aifc_data *af, const char *path, uint8_t *match_buf, size_t *match_buf_pos);
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void
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aifc_dispose(aifc_data *af);
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// Subtract 21, if negative wrap into [0, 128)
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#define NOTE_MIDI_TO_Z64(b) (((b)-21 < 0) ? ((b)-21 + 128) : ((b)-21))
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#endif
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