Commit 29beaeb5 authored by Sandesh Venkatesh's avatar Sandesh Venkatesh
Browse files

Converted few functions in dec_tcx 

[x] Few functions in dec_tcx converted to fixed point.
[x] Changes made in dependent functions to call the converted functions.
parent 4f548526

lib_com/cnst.h

+3 −2
Original line number Diff line number Diff line
@@ -1087,7 +1087,8 @@ enum 
#define NF_GAIN_BITS                        ( NBITS_TCX_GAIN + NOISE_FILL_RANGES * NBITS_NOISE_FILL_LEVEL )

#define MIN_NOISE_FILLING_HOLE              8

#define HOLE_SIZE_FROM_LTP_FLT( gain )      ( 4 + ( int16_t )( 2.0f * gain * ( 4.0f / 0.625f ) ) )

#define HOLE_SIZE_FROM_LTP(gain)   (add(4, extract_h(L_shr(L_mult0(gain, 0x6666), 10)))) /* 0x6666 -> 2.0*(4.0/0.625) (4Q11) */

#define HOLE_SIZE_FROM_LTP( gain )          (add(4, extract_h(L_shr(L_mult0(gain, 0x6666), 10)))) /* gain (Q15), 0x6666 = 2.0*(4.0/0.625) (4Q11) */

#define HOLE_SIZE_FROM_LTP32( gain )        (add(4, extract_h(L_shr(Mpy_32_32(gain, 0x66666667), 11))))  /* gain (Q31), 0x66666667 = 2.0*(4.0/0.625) (4Q27) */



#define FDNS_NPTS                           64

#define AVG_TCX20_LSF_BITS                  40

lib_com/ivas_cnst.h

+1 −0
Original line number Diff line number Diff line
@@ -848,6 +848,7 @@ enum fea_names 
#define SNS_MEANS_BITS_4_FRAC                   14



#define MDCT_ST_PLC_FADEOUT_MIN_NOISE_NRG       0.001f

#define MDCT_ST_PLC_FADEOUT_MIN_NOISE_NRG_Q31   2147483

#define MDCT_ST_PLC_FADEOUT_MAX_CONC_FRAME      2 * FRAMES_PER_SEC

#define MDCT_ST_PLC_FADEOUT_TO_ZERO_LEN         20

#define MDCT_ST_PLC_FADEOUT_DELAY_4_LSP_FADE    3

lib_com/ivas_prot_fx.h

+29 −0
Original line number Diff line number Diff line
@@ -262,6 +262,29 @@ void decoder_tcx_invQ_fx( 
    const Word16 frame_cnt /* i  : frame counter in the super frame        */

);



void decoder_tcx_noisefilling_fx(

    Decoder_State *st, /* i/o: coder memory state          */

    const Word32 concealment_noise[L_FRAME48k],

    const Word16 concealment_noise_exp,

    const Word16 A[], /* i  :  coefficients NxAz[M+1]     */

    const Word16 L_frameTCX_glob,

    const Word16 L_spec,

    const Word16 L_frame,

    const Word16 L_frameTCX,

    Word32 x[],

    Word16 *x_e,

    Word16 *gainlpc2,

    Word16 *gainlpc2_e,

    int16_t *temp_concealment_method,

    const Word16 gain_tcx,

    const Word16 gain_tcx_e,

    const Word16 *prm_sqQ,

    Word16 nf_seed,

    const Word16 bfi, /* i  :  Bad frame indicator            */

    const Word16 MCT_flag,

    const Word16 frame_cnt /* i  : frame counter in the super frame*/

);



void init_tcx_info_fx(

    Decoder_State *st,            /* i/o: coder memory state                                               */

    const Word16 L_frame_glob,    /* i  : global frame length                                              */
@@ -280,6 +303,12 @@ void IGFDecReplicateTCX10State_fx( 
    IGF_DEC_INSTANCE_HANDLE hIGFDec /* i/o: instance handle of IGF Decoder          */

);



Word16 get_igf_startline(

    Decoder_State *st,      /* i  : decoder state                  */

    const Word16 L_frame,   /* i  : length of the frame            */

    const Word16 L_frameTCX /* i  : full band frame length         */

);



void stereo_dft_dec_analyze_fx(

    CPE_DEC_HANDLE hCPE,                                 /* i/o: CPE decoder structure               */

    const Word32 *input_fx,                              /* i  : input signal                        */

lib_com/ivas_rom_com_fx.c

+5 −0
Original line number Diff line number Diff line
@@ -195,6 +195,11 @@ const Word16 ivas_cos_twiddle_80_fx[ IVAS_80_PT_LEN >> 1 ] = { 
  SHC( 0x26f4 ), SHC( 0x2223 ), SHC( 0x1d45 ), SHC( 0x185a ), SHC( 0x1367 ), SHC( 0x0e6b ), SHC( 0x096a ), SHC( 0x0465 ),

};



const Word16 nf_tw_smoothing_coeffs_fx[N_LTP_GAIN_MEMS] =

{

    13107, 6553, 6553, 6553

};



const Word16 dft_trigo_12k8_fx[STEREO_DFT_N_12k8_ENC / 4 + 1] =

{

	0, 402, 804, 1206, 1607, 2009, 2410, 2811, 3211, 3611, 4011, 4409, 4808, 5205, 5602, 5997, 6392, 6786, 7179, 7571, 7961, 8351, 8739, 9126, 9512, 9896, 10278, 10659,

lib_com/ivas_rom_com_fx.h

+1 −0
Original line number Diff line number Diff line
@@ -48,6 +48,7 @@ extern const Word16 ivas_sin_twiddle_160_fx[ IVAS_160_PT_LEN >> 1 ]; 
extern const Word16 ivas_cos_twiddle_160_fx[ IVAS_160_PT_LEN >> 1 ];

extern const Word16 ivas_sin_twiddle_80_fx[ IVAS_80_PT_LEN >> 1 ];

extern const Word16 ivas_cos_twiddle_80_fx[ IVAS_80_PT_LEN >> 1 ];

extern const Word16 nf_tw_smoothing_coeffs_fx[N_LTP_GAIN_MEMS];

extern const Word16 dft_trigo_12k8_fx[STEREO_DFT_N_12k8_ENC / 4 + 1];

extern const Word16 dft_trigo_32k_fx[STEREO_DFT_N_32k_ENC / 4 + 1];

extern const Word16 dft_trigo_48k_fx[STEREO_DFT_N_MAX_ENC / 4 + 1];