Commit 788c16aa authored by Dominik Weckbecker's avatar Dominik Weckbecker 💬
Browse files

Merge branch '977_Output-gain-mismatch-for-different-bit-rates-in-OSBA' into 'main' 

[non-BE]Fixing the output gain for BRs 192kbps and below so that it matches the same...

See merge request !1341
parents 30d00063 419a04b4

lib_com/options.h

+1 −0
Original line number Diff line number Diff line
@@ -176,6 +176,7 @@ 
#define NONBE_FIX_949_MC_5MS_FRAMING                          /* Dlb: issue 949: fix for issue 949, distorted output in MC mode with 5ms framing*/

#define NONBE_FIX_952_MC_PARAMUPMIX_5MS                       /* Dlb : issue 952 : Differences between 5ms and 20ms rendering for ParamUpmix*/

#define NONBE_FIX_968_ISM_BRIR_WITH_HEADROTATION_5MS_FIX      /* FhG : issue #968: differences between 5ms and 20ms rendering for discrete ISM with BRIR and head rotation*/

#define NONBE_FIX_977_OSBA_GAIN_MISMATCH                      /* Dlb : issue 977 : Output gain mismatch for different bit rates in OSBA */



/* ##################### End NON-BE switches ########################### */

lib_enc/ivas_osba_enc.c

+8 −0
Original line number Diff line number Diff line
@@ -72,7 +72,11 @@ static void ivas_merge_sba_transports( 
    {

        for ( j = 0; j < input_frame; j++ )

        {

#ifdef NONBE_FIX_977_OSBA_GAIN_MISMATCH

            data_out_f[i][j] = 0.5f * ( data_in_f1[i][j] + data_in_f2[i][j] );

#else

            data_out_f[i][j] = ( data_in_f1[i][j] + data_in_f2[i][j] );

#endif

        }

    }
@@ -443,7 +447,9 @@ static void ivas_osba_render_ism_to_sba( 
    int16_t azimuth, elevation;

    float gains[MAX_INPUT_CHANNELS];

    float g1, g2;

#ifndef NONBE_FIX_977_OSBA_GAIN_MISMATCH

    float output_gain;

#endif



    int16_t nchan_sba;
@@ -478,6 +484,7 @@ static void ivas_osba_render_ism_to_sba( 
    }



    /* Gain with loudness-matching gains */

#ifndef NONBE_FIX_977_OSBA_GAIN_MISMATCH

    output_gain = 0.7499f;

    for ( j = 0; j < nchan_sba; j++ )

    {
@@ -486,6 +493,7 @@ static void ivas_osba_render_ism_to_sba( 
            data_out_f[j][k] *= output_gain;

        }

    }

#endif



    return;

}