108 lines
3.2 KiB
C
108 lines
3.2 KiB
C
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/*
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Copyright (c), 2001-2022, Shenshu Tech. Co., Ltd.
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*/
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#ifndef AUDIO_AAC_ADP_H
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#define AUDIO_AAC_ADP_H
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#include <stdio.h>
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#include "ss_mpi_audio.h"
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#include "ot_common_aenc.h"
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#include "ot_common_adec.h"
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#include "ot_common_aio.h"
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#include "ot_aacdec.h"
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#include "ot_aacenc.h"
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/* samples per frame for AACLC and aacPlus */
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#define AACLD_SAMPLES_PER_FRAME 512
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#define AACLC_SAMPLES_PER_FRAME 1024
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#define AACPLUS_SAMPLES_PER_FRAME 2048
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/* max length of AAC stream by bytes */
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#define MAX_AAC_MAINBUF_SIZE (768 * 2)
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typedef enum {
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OT_AAC_TYPE_AACLC = 0, /* AAC LC */
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OT_AAC_TYPE_EAAC = 1, /* EAAC(HEAAC or AAC+ or aac_plus_v1) */
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OT_AAC_TYPE_EAACPLUS = 2, /* EAAC+(AAC++ or aac_plus_v2) */
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OT_AAC_TYPE_AACLD = 3,
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OT_AAC_TYPE_AACELD = 4,
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OT_AAC_TYPE_BUTT,
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} ot_aac_type;
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typedef enum {
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OT_AAC_BPS_8K = 8000,
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OT_AAC_BPS_16K = 16000,
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OT_AAC_BPS_22K = 22000,
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OT_AAC_BPS_24K = 24000,
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OT_AAC_BPS_32K = 32000,
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OT_AAC_BPS_48K = 48000,
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OT_AAC_BPS_64K = 64000,
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OT_AAC_BPS_96K = 96000,
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OT_AAC_BPS_128K = 128000,
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OT_AAC_BPS_256K = 256000,
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OT_AAC_BPS_320K = 320000,
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OT_AAC_BPS_BUTT
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} ot_aac_bps;
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typedef enum {
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OT_AAC_TRANSPORT_TYPE_ADTS = 0,
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OT_AAC_TRANSPORT_TYPE_LOAS = 1,
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OT_AAC_TRANSPORT_TYPE_LATM_MCP1 = 2,
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OT_AAC_TRANSPORT_TYPE_BUTT
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} ot_aac_transport_type;
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typedef struct {
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td_s32 sample_rate; /* sample rate */
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td_s32 bit_rate; /* bitrate */
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td_s32 profile; /* profile */
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td_s32 tns_used; /* TNS tools */
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td_s32 pns_used; /* PNS tools */
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td_s32 chn_num; /* channel num */
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} aacdec_frame_info;
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/*
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* AAC commendatory parameter:
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* sampling rate(HZ) LC bit_rate(kbit/s) EAAC bit_rate (kbit/s) EAAC+ bit_rate (kbit/s)
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* 48000 128 48 32,24
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* 44100 128 48 32,24
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* 32000 96 22 16
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* 24000 64
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* 22050 64
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* 16000 48
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*/
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typedef struct {
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ot_aac_type aac_type; /* AAC profile type */
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ot_aac_bps bit_rate; /* AAC bitrate(LC:16~320, EAAC:24~128, EAAC+:16~64, AACLD:16~320, AACELD:32~320) */
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ot_audio_sample_rate sample_rate; /* AAC sample rate(LC:8~48, EAAC:16~48, EAAC+:16~48, AACLD:8~48, AACELD:8~48) */
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ot_audio_bit_width bit_width; /* AAC bit width (only support 16bit) */
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ot_audio_snd_mode snd_mode; /* sound mode of inferent audio frame */
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ot_aac_transport_type transport_type;
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td_s16 band_width; /* targeted audio bandwidth in hz (0 or 1000~smp_rate/2), the default is 0 */
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} ot_aenc_attr_aac;
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typedef struct {
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ot_aac_encoder *aac_state;
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ot_aenc_attr_aac aac_attr;
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} aenc_aac_encoder;
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typedef struct {
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ot_aac_transport_type transport_type;
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} ot_adec_attr_aac;
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typedef struct {
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ot_aac_decoder aac_state;
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ot_adec_attr_aac aac_attr;
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} adec_aac_decoder;
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td_s32 ss_mpi_aenc_aac_init(td_void);
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td_s32 ss_mpi_aenc_aac_deinit(td_void);
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td_s32 ss_mpi_adec_aac_init(td_void);
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td_s32 ss_mpi_adec_aac_deinit(td_void);
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#endif
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