FreeCalypso > hg > gsm-codec-lib

comparison libgsmefr/pitch_ol.c @ 199:b4531e7227ca

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libgsmefr/pitch_ol.c: perf opt
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 04 Jan 2023 04:23:07 +0000
parents 509ba99f5136
children
comparison
equal deleted inserted replaced
198:d714168fb6dc 199:b4531e7227ca
74 /*--------------------------------------------------------* 74 /*--------------------------------------------------------*
75 * Verification for risk of overflow. * 75 * Verification for risk of overflow. *
76 *--------------------------------------------------------*/ 76 *--------------------------------------------------------*/
77 77
78 test (); test (); 78 test (); test ();
79 if (L_sub (t0, MAX_32) == 0L) /* Test for overflow */ 79 if (t0 == MAX_32) /* Test for overflow */
80 { 80 {
81 for (i = -pit_max; i < L_frame; i++) 81 for (i = -pit_max; i < L_frame; i++)
82 { 82 {
83 scal_sig[i] = shr (signal[i], 3); move16 (); 83 scal_sig[i] = shr (signal[i], 3); move16 ();
84 } 84 }
85 scal_fac = 3; move16 (); 85 scal_fac = 3; move16 ();
86 } 86 }
87 else if (L_sub (t0, (Word32) 1048576L) < (Word32) 0) 87 else if (t0 < (Word32) 1048576L)
88 /* if (t0 < 2^20) */ 88 /* if (t0 < 2^20) */
89 { 89 {
90 for (i = -pit_max; i < L_frame; i++) 90 for (i = -pit_max; i < L_frame; i++)
91 { 91 {
92 scal_sig[i] = shl (signal[i], 3); move16 (); 92 scal_sig[i] = shl (signal[i], 3); move16 ();
126 /*--------------------------------------------------------------------* 126 /*--------------------------------------------------------------------*
127 * Compare the 3 sections maximum, and favor small lag. * 127 * Compare the 3 sections maximum, and favor small lag. *
128 *-------------------------------------------------------------------*/ 128 *-------------------------------------------------------------------*/
129 129
130 test (); 130 test ();
131 if (sub (mult (max1, THRESHOLD), max2) < 0) 131 if (mult (max1, THRESHOLD) < max2)
132 { 132 {
133 max1 = max2; move16 (); 133 max1 = max2; move16 ();
134 p_max1 = p_max2; move16 (); 134 p_max1 = p_max2; move16 ();
135 } 135 }
136 test (); 136 test ();
137 if (sub (mult (max1, THRESHOLD), max3) < 0) 137 if (mult (max1, THRESHOLD) < max3)
138 { 138 {
139 p_max1 = p_max3; move16 (); 139 p_max1 = p_max3; move16 ();
140 } 140 }
141 return (p_max1); 141 return (p_max1);
142 } 142 }
181 for (j = 0; j < L_frame; j++, p++, p1++) 181 for (j = 0; j < L_frame; j++, p++, p1++)
182 { 182 {
183 t0 = L_mac (t0, *p, *p1); 183 t0 = L_mac (t0, *p, *p1);
184 } 184 }
185 test (); 185 test ();
186 if (L_sub (t0, max) >= 0) 186 if (t0 >= max)
187 { 187 {
188 max = t0; move32 (); 188 max = t0; move32 ();
189 p_max = i; move16 (); 189 p_max = i; move16 ();
190 } 190 }
191 } 191 }