Commit 536e3391 authored by Nicolas Roussin's avatar Nicolas Roussin
Browse files

Reduce precision of Mpy_64_32.

parent 235b3d96

CMakeLists.txt

+1 −1
Original line number Diff line number Diff line
@@ -216,7 +216,7 @@ target_link_libraries(ISAR_post_rend lib_basop lib_isar lib_util lib_com) 
target_include_directories(ISAR_post_rend PRIVATE lib_basop lib_isar)



add_executable(ambi_converter apps/ambi_converter.c)

target_link_libraries(ambi_converter lib_util lib_com lib_basop)

target_link_libraries(ambi_converter lib_util lib_com lib_basop lib_debug)

if(UNIX)

  target_link_libraries(ambi_converter m)

endif()

lib_rend/ivas_dirac_dec_binaural_functions_fx.c

+6 −0
Original line number Diff line number Diff line
@@ -1374,6 +1374,7 @@ static UWord32 ceil_log2( UWord32 x ) 


static Word64 Mpy_64_32( Word64 W_var1, Word32 L_var2 )

{

#if 0

    Word32 var1_l;

    Word64 var_out;

    var1_l = W_extract_l( W_var1 );                                               // 1
@@ -1381,6 +1382,11 @@ static Word64 Mpy_64_32( Word64 W_var1, Word32 L_var2 ) 
    var_out = W_mac_32_32( var_out, L_lshr( var1_l, 1 ), L_var2 );                // 2

    var_out = W_mac_32_32( W_shr( var_out, 31 ), W_extract_h( W_var1 ), L_var2 ); // 3

    return var_out;

#else

    Word64 var_out;

    var_out = Mpy_32_32( W_extract_h( W_var1 ), L_var2 ); // 3

    return var_out;

#endif

}



static void ivas_dirac_dec_binaural_formulate_input_covariance_matrices_fx(