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third_party_ffmpeg/libavcodec/av3a.h
liushuai 1ff18c834d 编程规范修改 
Signed-off-by: liushuai <cqliushuai@outlook.com>
2024-11-04 11:09:33 +08:00

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/*
* AV3A Common Header File
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_AV3A_H
#define AVCODEC_AV3A_H
#include "libavutil/samplefmt.h"
#include "libavutil/channel_layout.h"
/* AATF header */
#define AV3A_MAX_NBYTES_HEADER 9
#define AV3A_AUDIO_SYNC_WORD 0xFFF
#define AV3A_AUDIO_FRAME_SIZE 1024
#define AV3A_CHANNEL_LAYOUT_SIZE 15
#define AV3A_BITRATE_TABLE_SIZE 16
#define AV3A_FS_TABLE_SIZE 9
#define AV3A_RESOLUTION_TABLE_SIZE 3
#define AV3A_DCA3_BOX_MIN_SIZE 5
/* Channel Layout */
#define AV3A_CH_LAYOUT_MONO (AV_CH_LAYOUT_MONO)
#define AV3A_CH_LAYOUT_STEREO (AV_CH_LAYOUT_STEREO)
#define AV3A_CH_LAYOUT_4POINT0 (AV3A_CH_LAYOUT_STEREO|AV_CH_FRONT_CENTER|AV_CH_BACK_CENTER)
#define AV3A_CH_LAYOUT_5POINT1 (AV_CH_LAYOUT_5POINT1)
#define AV3A_CH_LAYOUT_7POINT1 (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
#define AV3A_CH_LAYOUT_5POINT1POINT2 (AV_CH_LAYOUT_5POINT1|AV_CH_TOP_SIDE_LEFT|AV_CH_TOP_SIDE_RIGHT)
#define AV3A_CH_LAYOUT_7POINT1POINT2 (AV3A_CH_LAYOUT_7POINT1|AV_CH_TOP_SIDE_LEFT|AV_CH_TOP_SIDE_RIGHT)
#define AV3A_CH_LAYOUT_5POINT1POINT4 (AV_CH_LAYOUT_5POINT1|AV_CH_TOP_FRONT_LEFT|AV_CH_TOP_FRONT_RIGHT|AV_CH_TOP_BACK_LEFT|AV_CH_TOP_BACK_RIGHT)
#define AV3A_CH_LAYOUT_7POINT1POINT4 (AV3A_CH_LAYOUT_7POINT1|AV_CH_TOP_FRONT_LEFT|AV_CH_TOP_FRONT_RIGHT|AV_CH_TOP_BACK_LEFT|AV_CH_TOP_BACK_RIGHT)
#define AV3A_CH_AUDIO_OBJECT (AV_CHAN_UNKNOWN)
/* AV3A Codec ID */
typedef enum {
AV3A_LOSSLESS_CODEC_ID = 1,
AV3A_LOSSY_CODEC_ID = 2
} Av3aCodecId;
/* Content Type */
typedef enum {
AV3A_CHANNEL_BASED_TYPE = 0,
AV3A_OBJECT_BASED_TYPE = 1,
AV3A_CHANNEL_OBJECT_TYPE = 2,
AV3A_AMBISONIC_TYPE = 3
} Av3aContentType;
/* AV3A Channel Configuration */
typedef enum {
CHANNEL_CONFIG_MONO = 0, /* Mono = 0 */
CHANNEL_CONFIG_STEREO = 1, /* Stereo = 1 */
CHANNEL_CONFIG_MC_5_1 = 2, /* 5.1 = 2 */
CHANNEL_CONFIG_MC_7_1 = 3, /* 7.1 = 3 */
CHANNEL_CONFIG_MC_10_2 = 4, /* 10.2 = 4 */
CHANNEL_CONFIG_MC_22_2 = 5, /* 22.2 = 5 */
CHANNEL_CONFIG_MC_4_0 = 6, /* 4.0 = 6 */
CHANNEL_CONFIG_MC_5_1_2 = 7, /* 5.1.2 = 7 */
CHANNEL_CONFIG_MC_5_1_4 = 8, /* 5.1.4 = 8 */
CHANNEL_CONFIG_MC_7_1_2 = 9, /* 7.1.2 = 9 */
CHANNEL_CONFIG_MC_7_1_4 = 10, /* 7.1.4 = 10 */
CHANNEL_CONFIG_HOA_ORDER1 = 11, /* FOA = 11 */
CHANNEL_CONFIG_HOA_ORDER2 = 12, /* HOA2 = 12 */
CHANNEL_CONFIG_HOA_ORDER3 = 13, /* HOA3 = 13 */
CHANNEL_CONFIG_UNKNOWN = 14 /* UNKNOWN = 14 */
} Av3aChannelConfig;
typedef enum {
AV3A_AMBISONIC_FIRST_ORDER = 1,
AV3A_AMBISONIC_SECOND_ORDER = 2,
AV3A_AMBISONIC_THIRD_ORDER = 3
} Av3aAmbisonicOrder;
typedef struct {
int16_t sync_word; /* sync word */
int16_t audio_codec_id; /* audio codec id */
int16_t anc_data; /* anc data */
int16_t nn_type; /* neural network type */
int16_t coding_profile; /* coding profile */
int16_t sampling_frequency_index; /* samping rate index */
int16_t channel_number_index; /* channel number index */
int16_t bitrate_index; /* bitrate index */
int16_t soundbed_type; /* soundbed type */
int16_t object_channel_number; /* object channel number */
int16_t bitrate_index_per_channel; /* bitrate per object */
int16_t order; /* ambisonics order */
int16_t resolution_index; /* resolution index */
int32_t sampling_rate; /* sampling rate */
int64_t total_bitrate; /* total bitrate */
int16_t sample_format; /* sample format */
int16_t resolution; /* resolution */
int16_t content_type; /* internal content type */
int16_t nb_channels; /* number of channels (channel configuration) */
int16_t nb_objects; /* number of objects (object_channel_number + 1) */
int16_t total_channels; /* total channels */
int16_t hoa_order; /* ambisonic order (order + 1) */
int32_t ch_layout_mask; /* channel layout mask */
} AATFHeaderInfo;
/* bitrate table for mono */
static const int64_t ff_av3a_mono_bitrate_table[AV3A_BITRATE_TABLE_SIZE] = {
16000, 32000, 44000, 56000, 64000, 72000, 80000, 96000, 128000, 144000,
164000, 192000, 0, 0, 0, 0};
/* bitrate table for stereo */
static const int64_t ff_av3a_stereo_bitrate_table[AV3A_BITRATE_TABLE_SIZE] = {
24000, 32000, 48000, 64000, 80000, 96000, 128000, 144000, 192000, 256000,
320000, 0, 0, 0, 0, 0};
/* bitrate table for MC 5.1 */
static const int64_t ff_av3a_mc5p1_bitrate_table[AV3A_BITRATE_TABLE_SIZE] = {
192000, 256000, 320000, 384000, 448000, 512000, 640000, 720000, 144000, 96000,
128000, 160000, 0, 0, 0, 0};
/* bitrate table for MC 7.1 */
static const int64_t ff_av3a_mc7p1_bitrate_table[AV3A_BITRATE_TABLE_SIZE] = {
192000, 480000, 256000, 384000, 576000, 640000, 128000, 160000, 0, 0,
0, 0, 0, 0, 0, 0};
/* bitrate table for MC 4.0 */
static const int64_t ff_av3a_mc4p0_bitrate_table[AV3A_BITRATE_TABLE_SIZE] = {
48000, 96000, 128000, 192000, 256000, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0};
/* bitrate table for MC 5.1.2 */
static const int64_t ff_av3a_mc5p1p2_bitrate_table[AV3A_BITRATE_TABLE_SIZE] = {
152000, 320000, 480000, 576000, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0};
/* bitrate table for MC 5.1.4 */
static const int64_t ff_av3a_mc5p1p4_bitrate_table[AV3A_BITRATE_TABLE_SIZE] = {
176000, 384000, 576000, 704000, 256000, 448000, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0};
/* bitrate table for MC 7.1.2 */
static const int64_t ff_av3a_mc7p1p2_bitrate_table[AV3A_BITRATE_TABLE_SIZE] = {
216000, 480000, 576000, 384000, 768000, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0};
/* bitrate table for MC 7.1.4 */
static const int64_t ff_av3a_mc7p1p4_bitrate_table[AV3A_BITRATE_TABLE_SIZE] = {
240000, 608000, 384000, 512000, 832000, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0};
/* bitrate table for FOA */
static const int64_t ff_av3a_foa_bitrate_table[AV3A_BITRATE_TABLE_SIZE] = {
48000, 96000, 128000, 192000, 256000, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0};
/* bitrate table for HOA2 */
static const int64_t ff_av3a_hoa2_bitrate_table[AV3A_BITRATE_TABLE_SIZE] = {
192000, 256000, 320000, 384000, 480000, 512000, 640000, 0, 0, 0,
0, 0, 0, 0, 0, 0};
/* bitrate table for HOA3 */
static const int64_t ff_av3a_hoa3_bitrate_table[AV3A_BITRATE_TABLE_SIZE] = {
256000, 320000, 384000, 512000, 640000, 896000, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0};
static const int32_t ff_av3a_sampling_rate_table[AV3A_FS_TABLE_SIZE] = {
192000, 96000, 48000, 44100, 32000, 24000, 22050, 16000, 8000
};
typedef struct {
int16_t resolution;
enum AVSampleFormat sample_format;
} Av3aSampleFormatMap;
static const Av3aSampleFormatMap ff_av3a_sample_format_map_table[AV3A_RESOLUTION_TABLE_SIZE] = {
{8, AV_SAMPLE_FMT_U8 }, /* 0: 8 bits */
{16, AV_SAMPLE_FMT_S16}, /* 1: 16 bits */
{24, AV_SAMPLE_FMT_S32}, /* 2: 24 bits */
};
typedef struct {
Av3aChannelConfig channel_number_index;
int16_t channels;
const enum AVChannel* channel_layout;
uint64_t mask;
} Av3aChannelConfigMap;
static const enum AVChannel ff_av3a_default_channel_layout_mono[1] = {
AV_CHAN_FRONT_CENTER
};
static const enum AVChannel ff_av3a_default_channel_layout_stereo[2] = {
AV_CHAN_FRONT_LEFT, AV_CHAN_FRONT_RIGHT
};
static const enum AVChannel ff_av3a_channel_layout_mc_4_0[4] = {
AV_CHAN_FRONT_LEFT, AV_CHAN_FRONT_RIGHT,
AV_CHAN_FRONT_CENTER, AV_CHAN_BACK_CENTER
};
static const enum AVChannel ff_av3a_default_channel_layout_mc_5_1[6] = {
AV_CHAN_FRONT_LEFT, AV_CHAN_FRONT_RIGHT, AV_CHAN_FRONT_CENTER,
AV_CHAN_LOW_FREQUENCY,
AV_CHAN_SIDE_LEFT, AV_CHAN_SIDE_RIGHT
};
static const enum AVChannel ff_av3a_default_channel_layout_mc_5_1_2[8] = {
AV_CHAN_FRONT_LEFT, AV_CHAN_FRONT_RIGHT, AV_CHAN_FRONT_CENTER,
AV_CHAN_LOW_FREQUENCY,
AV_CHAN_SIDE_LEFT, AV_CHAN_SIDE_RIGHT,
AV_CHAN_TOP_SIDE_LEFT, AV_CHAN_TOP_SIDE_RIGHT
};
static const enum AVChannel ff_av3a_default_channel_layout_mc_7_1[8] = {
AV_CHAN_FRONT_LEFT, AV_CHAN_FRONT_RIGHT, AV_CHAN_FRONT_CENTER,
AV_CHAN_LOW_FREQUENCY,
AV_CHAN_SIDE_LEFT, AV_CHAN_SIDE_RIGHT,
AV_CHAN_BACK_LEFT, AV_CHAN_BACK_RIGHT
};
static const enum AVChannel ff_av3a_default_channel_layout_mc_5_1_4[10] = {
AV_CHAN_FRONT_LEFT, AV_CHAN_FRONT_RIGHT, AV_CHAN_FRONT_CENTER,
AV_CHAN_LOW_FREQUENCY,
AV_CHAN_SIDE_LEFT, AV_CHAN_SIDE_RIGHT,
AV_CHAN_TOP_FRONT_LEFT, AV_CHAN_TOP_FRONT_RIGHT,
AV_CHAN_TOP_BACK_LEFT, AV_CHAN_TOP_BACK_RIGHT
};
static const enum AVChannel ff_av3a_default_channel_layout_mc_7_1_2[10] = {
AV_CHAN_FRONT_LEFT, AV_CHAN_FRONT_RIGHT, AV_CHAN_FRONT_CENTER,
AV_CHAN_LOW_FREQUENCY,
AV_CHAN_SIDE_LEFT, AV_CHAN_SIDE_RIGHT,
AV_CHAN_BACK_LEFT, AV_CHAN_BACK_RIGHT,
AV_CHAN_TOP_SIDE_LEFT, AV_CHAN_TOP_SIDE_RIGHT
};
static const enum AVChannel ff_av3a_default_channel_layout_mc_7_1_4[12] = {
AV_CHAN_FRONT_LEFT, AV_CHAN_FRONT_RIGHT, AV_CHAN_FRONT_CENTER,
AV_CHAN_LOW_FREQUENCY,
AV_CHAN_SIDE_LEFT, AV_CHAN_SIDE_RIGHT,
AV_CHAN_BACK_LEFT, AV_CHAN_BACK_RIGHT,
AV_CHAN_TOP_FRONT_LEFT, AV_CHAN_TOP_FRONT_RIGHT,
AV_CHAN_TOP_BACK_LEFT, AV_CHAN_TOP_BACK_RIGHT
};
static const Av3aChannelConfigMap ff_av3a_channels_map_table[AV3A_CHANNEL_LAYOUT_SIZE] = {
{ CHANNEL_CONFIG_MONO, 1, ff_av3a_default_channel_layout_mono , AV3A_CH_LAYOUT_MONO, },
{ CHANNEL_CONFIG_STEREO, 2, ff_av3a_default_channel_layout_stereo, AV3A_CH_LAYOUT_STEREO },
{ CHANNEL_CONFIG_MC_5_1, 6, ff_av3a_default_channel_layout_mc_5_1, AV3A_CH_LAYOUT_5POINT1 },
{ CHANNEL_CONFIG_MC_7_1, 8, ff_av3a_default_channel_layout_mc_7_1, AV3A_CH_LAYOUT_7POINT1 },
{ CHANNEL_CONFIG_MC_10_2, 12, NULL, 0L }, /* reserved */
{ CHANNEL_CONFIG_MC_22_2, 24, NULL, 0L }, /* reserved */
{ CHANNEL_CONFIG_MC_4_0, 4, ff_av3a_channel_layout_mc_4_0, AV3A_CH_LAYOUT_4POINT0 },
{ CHANNEL_CONFIG_MC_5_1_2, 8, ff_av3a_default_channel_layout_mc_5_1_2, AV3A_CH_LAYOUT_5POINT1POINT2 },
{ CHANNEL_CONFIG_MC_5_1_4, 10, ff_av3a_default_channel_layout_mc_5_1_4, AV3A_CH_LAYOUT_5POINT1POINT4 },
{ CHANNEL_CONFIG_MC_7_1_2, 10, ff_av3a_default_channel_layout_mc_7_1_2, AV3A_CH_LAYOUT_7POINT1POINT2 },
{ CHANNEL_CONFIG_MC_7_1_4, 12, ff_av3a_default_channel_layout_mc_7_1_4, AV3A_CH_LAYOUT_7POINT1POINT4 },
{ CHANNEL_CONFIG_HOA_ORDER1, 4, NULL, 0L },
{ CHANNEL_CONFIG_HOA_ORDER2, 9, NULL, 0L },
{ CHANNEL_CONFIG_HOA_ORDER3, 16, NULL, 0L },
{ CHANNEL_CONFIG_UNKNOWN, 0, NULL, 0L },
};
typedef struct {
Av3aChannelConfig channel_number_index;
const int64_t *bitrate_table;
} Av3aBitrateMap;
static const Av3aBitrateMap ff_av3a_bitrate_map_table[15] = {
{CHANNEL_CONFIG_MONO, ff_av3a_mono_bitrate_table },
{CHANNEL_CONFIG_STEREO, ff_av3a_stereo_bitrate_table },
{CHANNEL_CONFIG_MC_5_1, ff_av3a_mc5p1_bitrate_table },
{CHANNEL_CONFIG_MC_7_1, ff_av3a_mc7p1_bitrate_table },
{CHANNEL_CONFIG_MC_10_2, NULL }, /* reserved */
{CHANNEL_CONFIG_MC_22_2, NULL }, /* reserved */
{CHANNEL_CONFIG_MC_4_0, ff_av3a_mc4p0_bitrate_table },
{CHANNEL_CONFIG_MC_5_1_2, ff_av3a_mc5p1p2_bitrate_table },
{CHANNEL_CONFIG_MC_5_1_4, ff_av3a_mc5p1p4_bitrate_table },
{CHANNEL_CONFIG_MC_7_1_2, ff_av3a_mc7p1p2_bitrate_table },
{CHANNEL_CONFIG_MC_7_1_4, ff_av3a_mc7p1p4_bitrate_table },
{CHANNEL_CONFIG_HOA_ORDER1, ff_av3a_foa_bitrate_table },
{CHANNEL_CONFIG_HOA_ORDER2, ff_av3a_hoa2_bitrate_table },
{CHANNEL_CONFIG_HOA_ORDER3, ff_av3a_hoa3_bitrate_table },
{CHANNEL_CONFIG_UNKNOWN, NULL },
};
#endif /* AVCODEC_AV3A_H */
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