Commit 489187a1 authored by Sandesh Venkatesh's avatar Sandesh Venkatesh
Browse files

Functions in ivas_mono_dmx_renderer converted to fixed point. 

[x]Below functions are converted:
ivas_dmx_mono_renderer_open
ivas_dmx_mono_renderer_close
ivas_mono_downmix_render_passive
ivas_mono_stereo_downmix_mcmasa
ivas_apply_non_diegetic_panning (untested)
parent 82566f11

lib_com/fft_fx.c

+15 −11
Original line number Diff line number Diff line
@@ -5449,7 +5449,11 @@ Word16 find_guarded_bits_fx( Word32 n ) 
                      : n <= 256   ? 8

                      : n <= 512   ? 9

                      : n <= 1024  ? 10

                                : 11;

                      : n <= 2048  ? 11

	                  : n <= 4096  ? 12

	                  : n <= 8192  ? 13

	                  : n <= 16384 ? 14

	                               : 15;

}



Word16 L_norm_arr( Word32 *arr, Word16 size )

lib_com/ivas_cnst.h

+4 −0
Original line number Diff line number Diff line
@@ -59,6 +59,10 @@ 
#define INV_SQRT2                               7.071067811865475e-1f /* 1/sqrt(2) */

#define INV_SQRT3                               0.577350269189626f    /* 1/sqrt(3) */



#ifdef IVAS_FLOAT_FIXED

#define INV_SQRT2_FX                            23170                 /* 1/sqrt(2) Q15*/

#endif



#define LOG_10                                  2.30258509299f

lib_com/ivas_prot_fx.h

+25 −0
Original line number Diff line number Diff line
@@ -836,4 +836,29 @@ void stereo_decoder_tcx_fx( 
    const Word16 tmp_plc_upmix,        /* i  : indicates temp upmix for PLC decision   */

    Word16 *q_x_ch2,

    Word16 *q_x_ch1 );

void v_multc_acc_32_16(

  const Word32 x[], /* i  : Input vector                                     */

  const Word16 c,   /* i  : Constant                                         */

  Word32 y[],       /* o  : Output vector that contains y + c*x              */

  const Word16 N  /* i  : Vector length                                    */

);



void ivas_mono_stereo_downmix_mcmasa_fx(

  Decoder_Struct *st_ivas, /* i/o: IVAS decoder structure                                          */

  Word32 *output_f_fx[],   /* i/o: synthesized core-coder transport channels/mono or stereo output */

  Word16 output_frame      /* i  : output frame length per channel                                 */

);



void ivas_apply_non_diegetic_panning_fx(

  Word32 *output_f_fx[],                 /* i/o: core-coder transport mono channel/stereo output  */

  const Word16 non_diegetic_pan_gain_fx, /* i  : non-diegetic panning gain                        */

  const Word16 output_frame         /* i  : output frame length per channel                  */

);



void ivas_mono_downmix_render_passive_fx(

  Decoder_Struct *st_ivas,  /* i/o: IVAS decoder structure                                */

  Word32 *output_f_fx[],    /* i/o: synthesized core-coder transport channels/mono output */

  const Word16 output_frame /* i  : output frame length                                   */

);



#endif

lib_com/ivas_tools.c

+19 −0
Original line number Diff line number Diff line
@@ -1092,6 +1092,25 @@ void v_multc_acc( 
    return;

}



#ifdef IVAS_FLOAT_FIXED

void v_multc_acc_32_16(

    const Word32 x[], /* i  : Input vector                                     */

    const Word16 c,   /* i  : Constant                                         */

    Word32 y[],       /* o  : Output vector that contains y + c*x              */

    const Word16 N  /* i  : Vector length                                    */

)

{

    Word16 i;



    FOR ( i = 0; i < N; i++ )

    {

        y[i] = L_add(y[i],Mpy_32_16_1(x[i],c));

    }



    return;

}

#endif



/*---------------------------------------------------------------------*

 * lls_interp_n()

 *

lib_com/prot_fx2.h

+6 −0
Original line number Diff line number Diff line
@@ -5144,6 +5144,12 @@ void v_multc_fixed( 
    Word32 y[],       /* o  : Output vector that contains c*x                  */

    const Word16 N    /* i  : Vector length                                    */

);

void v_multc_fixed_16(

    const Word32 x[], /* i  : Input vector                                     */

    const Word16 c,   /* i  : Constant                                         */

    Word32 y[],       /* o  : Output vector that contains c*x                  */

    const Word16 N    /* i  : Vector length                                    */

);



void v_add_fixed(

    const Word32 x1[], /* i  : Input vector 1                                   */