/* * Copyright (C) 2013 - 2016 Sony Corporation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef _LDACBT_INTERNAL_H_ #define _LDACBT_INTERNAL_H_ #include #include #include #include #include "struct_ldac.h" #ifdef __cplusplus extern "C" { #endif /* Function declaration */ #define DECLFUNC static /* Limit for alter EQMID process */ #define LDACBT_LIMIT_ALTER_EQMID_PRIORITY LDACBT_EQMID_MQ #include "ldaclib.h" #include "ldacBT.h" #include "ldacBT_ex.h" /* macro value */ /* The size of LDAC transport header. Unit:Byte. */ #define LDACBT_FRMHDRBYTES LDAC_FRMHDRBYTES /* The Maximum number of frames that can transrate in one packet.(LDAC A2DP spec) */ #define LDACBT_NFRM_TX_MAX 15 /* Lowest Common Multiple of (2,3,4)Bytes * 2ch * 256samples */ #define LDACBT_ENC_PCM_BUF_SZ 6144 /* The maximum pcm word length allowed. Unit:Byte */ #define LDACBT_PCM_WLEN_MAX 4 /* The size of LDACBT_TRANSPORT_FRM_BUF's buffer. Unit:Byte */ #define LDACBT_ENC_STREAM_BUF_SZ 1024 /* The size of rtp header and so on. Unit:Byte */ /* = sizeof(struct rtp_header) + sizeof(struct rtp_payload) + 1 (scms-t). */ #define LDACBT_TX_HEADER_SIZE 18 /* The MTU size required for LDAC A2DP streaming. */ #define LDACBT_MTU_REQUIRED 679 #define LDACBT_MTU_3DH5 (990+LDACBT_TX_HEADER_SIZE) /* The state for alter operation */ #define LDACBT_ALTER_OP__NON 0 #define LDACBT_ALTER_OP__ACTIVE 1 #define LDACBT_ALTER_OP__STANDBY 2 #define LDACBT_ALTER_OP__FLASH 9 /* other */ #ifndef LDACBT_S_OK #define LDACBT_S_OK (0) #endif #ifndef LDACBT_E_FAIL #define LDACBT_E_FAIL (-1) #endif #ifndef FALSE #define FALSE 0 #endif #ifndef TRUE #define TRUE 1 #endif #ifndef UNSET #define UNSET -1 #endif #define LDACBT_GET_LDACLIB_ERROR_CODE 9999 /* The index for A2DP packets */ enum { ___DH1, ___DH3, ___DH5, /* basic rate */ _2_DH1, _2_DH3, _2_DH5, /* EDR2M */ _3_DH1, _3_DH3, _3_DH5, /* EDR3M */ }; /* The state for LDACBT handle processing mode. */ typedef enum { LDACBT_PROCMODE_UNSET = -1, LDACBT_PROCMODE_ENCODE = 1, LDACBT_PROCMODE_DECODE = 2, } LDACBT_PROCMODE; /* Structs */ /* The structure for the property of EQMID. */ typedef struct _st_ldacbt_eqmid_property { int eqmid; char strModeName[4]; int id_for_2DH5; } LDACBT_EQMID_PROPERTY, * P_LDACBT_EQMID_PROPERTY; /* The structure for the configuration of LDAC. */ typedef struct _st_ldacbt_config { int id; int nfrm_in_pkt; /* number of ldac frame in packet */ int frmlen; /* ldac frame length */ int frmlen_1ch; /* ldac frame length per channel */ } LDACBT_CONFIG, * P_LDACBT_CONFIG; /* The structure for the pcm information. */ typedef struct _ldacbt_pcm_info { int sf; /* sampling frequency */ int ch; /* number of channel */ int wl; LDACBT_SMPL_FMT_T fmt; /* sample format */ } LDACBT_PCM_INFO; /* The structure for the A2DP streaming. */ typedef struct _ldacbt_tx_info { int mtu; int tx_size; /* size for ldac stream */ int pkt_type; /* packet type */ int pkt_hdr_sz; /* packet header size */ int nfrm_in_pkt; /* number of ldac frame in packet */ } LDACBT_TX_INFO; /* The structure for the ldac_transport_frame sequence. */ typedef struct _ldacbt_transport_frame_buf { unsigned char buf[LDACBT_ENC_STREAM_BUF_SZ]; int used; int nfrm_in; } LDACBT_TRANSPORT_FRM_BUF; /* The structure of ring buffer for the input PCM. */ typedef struct _ldacbt_pcm_ring_buf { char buf[LDACBT_ENC_PCM_BUF_SZ]; int wp; int rp; int nsmpl; } LDACBT_PCM_RING_BUF; /* The LDACBT handle. */ typedef struct _st_ldacbt_handle { HANDLE_LDAC hLDAC; LDACBT_PROCMODE proc_mode; int error_code; int error_code_api; /* common */ /* pcm */ LDACBT_PCM_INFO pcm; /* tx */ LDACBT_TX_INFO tx; /* ldaclib config */ int frm_samples; /* frame samples */ int sfid; /* sampling frequency index */ int nshift; int flg_encode_flushed; int frm_status; int frmlen; /* Frame Length */ int frmlen_tx; /* Frame Length with transport header */ int bitrate; int eqmid; /* Encode Quality Mode Index */ /* for alter frame length */ int tgt_eqmid; /* target Encode Quality Mode Index */ int tgt_nfrm_in_pkt;/* target number of frame in packet */ int tgt_frmlen; /* target frame length */ int stat_alter_op; /* status of alter operation */ int cm; /* Channel Mode */ int cci; /* Channel Config Index */ int transport; /* Transport Stream ( with frame header) */ /* buffer for "ldac_transport_frame" sequence */ LDACBT_TRANSPORT_FRM_BUF ldac_trns_frm_buf; /* buffer for input pcm */ LDACBT_PCM_RING_BUF pcmring; /* work buffer for LDACLIB I/O */ char **pp_pcm; char *ap_pcm[LDAC_PRCNCH]; char a_pcm[LDAC_PRCNCH * LDACBT_MAX_LSU * LDACBT_PCM_WLEN_MAX]; } STRUCT_LDACBT_HANDLE; /* subfunctions */ DECLFUNC void ldacBT_param_clear(HANDLE_LDAC_BT hLdacBT); DECLFUNC int ldacBT_check_ldaclib_error_code(HANDLE_LDAC_BT hLdacBT); DECLFUNC int ldacBT_assert_cm( int cm ); DECLFUNC int ldacBT_assert_cci( int cci ); DECLFUNC int ldacBT_assert_sample_format( LDACBT_SMPL_FMT_T fmt ); DECLFUNC int ldacBT_assert_pcm_sampling_freq( int sf ); DECLFUNC int ldacBT_assert_mtu( int mtu ); DECLFUNC int ldacBT_assert_eqmid( int eqmid ); DECLFUNC void ldacBT_set_eqmid_core( HANDLE_LDAC_BT hLdacBT, int eqmid ); DECLFUNC void ldacBT_prepare_pcm_encode( void *pbuff, char **ap_pcm, int nsmpl, int nch, LDACBT_SMPL_FMT_T fmt ); DECLFUNC int ldacBT_frmlen_to_bitrate( int frmlen, int flgFrmHdr, int sf, int frame_samples ); DECLFUNC int ldacBT_cm_to_cci( int cm ); DECLFUNC int ldacBT_cci_to_cm( int cci ); DECLFUNC int ldacBT_get_altered_eqmid ( HANDLE_LDAC_BT hLdacBT, int priority ); DECLFUNC int ldacBT_get_eqmid_from_frmlen( int frmlen, int nch, int flgFrmHdr, int pktType ); DECLFUNC int ldacBT_update_frmlen(HANDLE_LDAC_BT hLdacBT, int frmlen); DECLFUNC P_LDACBT_EQMID_PROPERTY ldacBT_get_eqmid_conv_tbl ( int ldac_bt_mode ); DECLFUNC P_LDACBT_CONFIG ldacBT_get_config( int ldac_bt_mode, int pkt_type ); #ifdef __cplusplus } #endif #endif /* _LDACBT_INTERNAL_H_ */