Changeset 6129 for pjproject/trunk/third_party/speex/libspeex/math_approx.h

Timestamp:

Jan 9, 2020 9:05:50 AM (4 years ago)

Author:

ming

Message:

Closed #589: Update Speex AEC to the latest version to get multichannel EC

File:

• pjproject/trunk/third_party/speex/libspeex/math_approx.h (modified) (3 diffs)

pjproject/trunk/third_party/speex/libspeex/math_approx.h

@@ -8 +8 @@
    modification, are permitted provided that the following conditions
    are met:
-   
+
    - Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.
-   
+
    - Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
-   
+
    - Neither the name of the Xiph.org Foundation nor the names of its
    contributors may be used to endorse or promote products derived from
    this software without specific prior written permission.
-   
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
@@ -169 +169 @@
    }
    x = SUB16(16384,x);
-   
+
    x = x >> 1;
    sq = MULT16_16_Q13(x, ADD16(A1, MULT16_16_Q13(x, ADD16(A2, MULT16_16_Q13(x, (A3))))));
    ret = spx_sqrt(SHL32(EXTEND32(sq),13));
-   
+
    /*ret = spx_sqrt(67108864*(-1.6129e-04 + 2.0104e+00*f + 2.7373e-01*f*f + 1.8136e-01*f*f*f));*/
    if (s)
@@ -209 +209 @@
 {
    spx_word16_t x2;
-   
+
    x2 = MULT16_16_P15(x,x);
    return ADD16(1,MIN16(32766,ADD32(SUB16(L1,x2), MULT16_16_P15(x2, ADD32(L2, MULT16_16_P15(x2, ADD32(L3, MULT16_16_P15(L4, x2))))))));