240 lines
6.1 KiB
C
240 lines
6.1 KiB
C
/*
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* Copyright (c) 2024, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 3-Clause Clear License
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* and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear
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* License was not distributed with this source code in the LICENSE file, you
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* can obtain it at www.aomedia.org/license/software-license/bsd-3-c-c. If the
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* Alliance for Open Media Patent License 1.0 was not distributed with this
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* source code in the PATENTS file, you can obtain it at
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* www.aomedia.org/license/patent.
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*/
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/**
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* @file IAMF_defines.h
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* @brief AMF Common defines
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* @version 0.1
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* @date Created 3/3/2023
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**/
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#ifndef IAMF_DEFINES_H
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#define IAMF_DEFINES_H
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#include <stdint.h>
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/**
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* Audio Element Type
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* */
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typedef enum {
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AUDIO_ELEMENT_INVALID = -1,
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AUDIO_ELEMENT_CHANNEL_BASED,
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AUDIO_ELEMENT_SCENE_BASED,
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AUDIO_ELEMENT_COUNT
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} AudioElementType;
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typedef enum AmbisonicsMode {
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AMBISONICS_MONO,
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AMBISONICS_PROJECTION
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} AmbisonicsMode;
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typedef enum IAMF_LayoutType {
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IAMF_LAYOUT_TYPE_NOT_DEFINED = 0,
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IAMF_LAYOUT_TYPE_LOUDSPEAKERS_SS_CONVENTION = 2,
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IAMF_LAYOUT_TYPE_BINAURAL,
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} IAMF_LayoutType;
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typedef enum IAMF_SoundSystem {
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SOUND_SYSTEM_INVALID = -1,
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SOUND_SYSTEM_A, // 0+2+0, 0
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SOUND_SYSTEM_B, // 0+5+0, 1
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SOUND_SYSTEM_C, // 2+5+0, 1
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SOUND_SYSTEM_D, // 4+5+0, 1
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SOUND_SYSTEM_E, // 4+5+1, 1
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SOUND_SYSTEM_F, // 3+7+0, 2
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SOUND_SYSTEM_G, // 4+9+0, 1
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SOUND_SYSTEM_H, // 9+10+3, 2
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SOUND_SYSTEM_I, // 0+7+0, 1
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SOUND_SYSTEM_J, // 4+7+0, 1
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SOUND_SYSTEM_EXT_712, // 2+7+0, 1
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SOUND_SYSTEM_EXT_312, // 2+3+0, 1
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SOUND_SYSTEM_MONO, // 0+1+0, 0
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SOUND_SYSTEM_EXT_916, // 6+9+0, 1
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SOUND_SYSTEM_END
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} IAMF_SoundSystem;
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typedef enum IAMF_ParameterType {
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IAMF_PARAMETER_TYPE_MIX_GAIN = 0,
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IAMF_PARAMETER_TYPE_DEMIXING,
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IAMF_PARAMETER_TYPE_RECON_GAIN,
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} IAMF_ParameterType;
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typedef enum IAMF_AnimationType {
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ANIMATION_TYPE_INVALID = -1,
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ANIMATION_TYPE_STEP,
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ANIMATION_TYPE_LINEAR,
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ANIMATION_TYPE_BEZIER
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} IAMF_AnimationType;
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/**
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* Layout Syntax:
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*
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* class layout() {
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* unsigned int (2) layout_type;
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*
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* if (layout_type == LOUDSPEAKERS_SS_CONVENTION) {
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* unsigned int (4) sound_system;
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* unsigned int (2) reserved;
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* } else if (layout_type == BINAURAL or NOT_DEFINED) {
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* unsigned int (6) reserved;
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* }
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* }
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*
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* */
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typedef struct IAMF_Layout {
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union {
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struct {
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uint8_t reserved : 2;
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uint8_t sound_system : 4;
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uint8_t type : 2;
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} sound_system;
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struct {
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uint8_t reserved : 6;
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uint8_t type : 2;
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} binaural;
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struct {
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uint8_t reserved : 6;
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uint8_t type : 2;
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};
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};
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} IAMF_Layout;
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/**
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*
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* Loudness Info Syntax:
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*
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* class loudness_info() {
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* unsigned int (8) info_type;
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* signed int (16) integrated_loudness;
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* signed int (16) digital_peak;
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*
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* if (info_type & 1) {
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* signed int (16) true_peak;
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* }
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*
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* if (info_type & 2) {
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* unsigned int (8) num_anchored_loudness;
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* for (i = 0; i < num_anchored_loudness; i++) {
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* unsigned int (8) anchor_element;
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* signed int (16) anchored_loudness;
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* }
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* }
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*
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* if (info_type & 0b11111100 > 0) {
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* leb128() info_type_size;
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* unsigned int (8 x info_type_size) info_type_bytes;
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* }
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*
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* }
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*
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* */
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typedef struct _anchor_loudness_t {
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uint8_t anchor_element;
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int16_t anchored_loudness;
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} anchor_loudness_t;
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typedef struct IAMF_LoudnessInfo {
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uint8_t info_type;
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int16_t integrated_loudness;
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int16_t digital_peak;
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int16_t true_peak;
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uint8_t num_anchor_loudness;
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anchor_loudness_t *anchor_loudness;
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uint64_t info_type_size;
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uint8_t *info_type_bytes;
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} IAMF_LoudnessInfo;
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/**
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* Codec ID
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* */
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typedef enum {
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IAMF_CODEC_UNKNOWN = 0,
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IAMF_CODEC_OPUS,
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IAMF_CODEC_AAC,
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IAMF_CODEC_FLAC,
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IAMF_CODEC_PCM,
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IAMF_CODEC_COUNT
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} IAMF_CodecID;
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/**
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* Error codes.
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* */
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enum {
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IAMF_OK = 0,
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IAMF_ERR_BAD_ARG = -1,
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IAMF_ERR_BUFFER_TOO_SMALL = -2,
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IAMF_ERR_INTERNAL = -3,
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IAMF_ERR_INVALID_PACKET = -4,
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IAMF_ERR_INVALID_STATE = -5,
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IAMF_ERR_UNIMPLEMENTED = -6,
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IAMF_ERR_ALLOC_FAIL = -7,
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};
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/**
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* IA channel layout type.
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* */
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typedef enum {
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IA_CHANNEL_LAYOUT_INVALID = -1,
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IA_CHANNEL_LAYOUT_MONO = 0, // 1.0.0
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IA_CHANNEL_LAYOUT_STEREO, // 2.0.0
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IA_CHANNEL_LAYOUT_510, // 5.1.0
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IA_CHANNEL_LAYOUT_512, // 5.1.2
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IA_CHANNEL_LAYOUT_514, // 5.1.4
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IA_CHANNEL_LAYOUT_710, // 7.1.0
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IA_CHANNEL_LAYOUT_712, // 7.1.2
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IA_CHANNEL_LAYOUT_714, // 7.1.4
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IA_CHANNEL_LAYOUT_312, // 3.1.2
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IA_CHANNEL_LAYOUT_BINAURAL, // binaural
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IA_CHANNEL_LAYOUT_COUNT,
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// expanded layout for version 1.1.
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/// @brief The low-frequency effects subset (LFE) of 7.1.4ch
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IA_CHANNEL_LAYOUT_EXPANDED_LFE = 0x10,
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/// @brief The surround subset (Ls/Rs) of 5.1.4ch
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IA_CHANNEL_LAYOUT_EXPANDED_STEREO_S,
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/// @brief The side surround subset (Lss/Rss) of 7.1.4ch
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IA_CHANNEL_LAYOUT_EXPANDED_STEREO_SS,
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/// @brief The rear surround subset (Lrs/Rrs) of 7.1.4ch
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IA_CHANNEL_LAYOUT_EXPANDED_STEREO_RS,
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/// @brief The top front subset (Ltf/Rtf) of 7.1.4ch
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IA_CHANNEL_LAYOUT_EXPANDED_STEREO_TF,
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/// @brief The top back subset (Ltb/Rtb) of 7.1.4ch
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IA_CHANNEL_LAYOUT_EXPANDED_STEREO_TB,
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/// @brief The top 4 channels (Ltf/Rtf/Ltb/Rtb) of 7.1.4ch
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IA_CHANNEL_LAYOUT_EXPANDED_TOP_4CH,
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/// @brief The front 3 channels (L/C/R) of 7.1.4ch
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IA_CHANNEL_LAYOUT_EXPANDED_3CH,
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/// @brief The subset of Loudspeaker configuration for Sound System H (9+10+3)
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/// of [ITU-2051-3]
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IA_CHANNEL_LAYOUT_EXPANDED_916,
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/// @brief The front subset (FL/FR) of 9.1.6ch
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IA_CHANNEL_LAYOUT_EXPANDED_STEREO_F,
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/// @brief The side subset (SiL/SiR) of 9.1.6ch
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IA_CHANNEL_LAYOUT_EXPANDED_STEREO_SI,
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/// @brief The top side subset (TpSiL/TpSiR) of 9.1.6ch
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IA_CHANNEL_LAYOUT_EXPANDED_STEREO_TPSI,
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/// @brief The top 6 channels (TpFL/TpFR/TpSiL/TpSiR/TpBL/TpBR) of 9.1.6ch
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IA_CHANNEL_LAYOUT_EXPANDED_TOP_6CH,
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/// @brief The end of expanded loudspeaker layout
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IA_CHANNEL_LAYOUT_EXPANDED_END,
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} IAChannelLayoutType;
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#endif /* IAMF_DEFINES_H */
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