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author | James Dong <jdong@google.com> | 2011-05-25 12:37:07 -0700 |
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committer | Android (Google) Code Review <android-gerrit@google.com> | 2011-05-25 12:37:07 -0700 |
commit | ade8c2d682d4f8c9424dece53e39400c237d22bf (patch) | |
tree | 0a167e54e73593e0420f6aa89214c1c8978784a6 /media/libstagefright/codecs/amrwbenc/src/residu.c | |
parent | fa855e0e46fc706a2120bc4659aaeaf2ef395a4d (diff) | |
parent | e2e838afcf03e603a41a0455846eaf9614537c16 (diff) | |
download | frameworks_av-ade8c2d682d4f8c9424dece53e39400c237d22bf.zip frameworks_av-ade8c2d682d4f8c9424dece53e39400c237d22bf.tar.gz frameworks_av-ade8c2d682d4f8c9424dece53e39400c237d22bf.tar.bz2 |
Merge "Convert line breaks to Unix style"
Diffstat (limited to 'media/libstagefright/codecs/amrwbenc/src/residu.c')
-rw-r--r-- | media/libstagefright/codecs/amrwbenc/src/residu.c | 134 |
1 files changed, 67 insertions, 67 deletions
diff --git a/media/libstagefright/codecs/amrwbenc/src/residu.c b/media/libstagefright/codecs/amrwbenc/src/residu.c index 6829882..328aed2 100644 --- a/media/libstagefright/codecs/amrwbenc/src/residu.c +++ b/media/libstagefright/codecs/amrwbenc/src/residu.c @@ -1,67 +1,67 @@ -/*
- ** Copyright 2003-2010, VisualOn, Inc.
- **
- ** Licensed under the Apache License, Version 2.0 (the "License");
- ** you may not use this file except in compliance with the License.
- ** You may obtain a copy of the License at
- **
- ** http://www.apache.org/licenses/LICENSE-2.0
- **
- ** Unless required by applicable law or agreed to in writing, software
- ** distributed under the License is distributed on an "AS IS" BASIS,
- ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- ** See the License for the specific language governing permissions and
- ** limitations under the License.
- */
-
-/***********************************************************************
-* File: residu.c *
-* *
-* Description: Compute the LPC residual by filtering *
-* the input speech through A(z) *
-* *
-************************************************************************/
-
-#include "typedef.h"
-#include "basic_op.h"
-
-void Residu(
- Word16 a[], /* (i) Q12 : prediction coefficients */
- Word16 x[], /* (i) : speech (values x[-m..-1] are needed */
- Word16 y[], /* (o) x2 : residual signal */
- Word16 lg /* (i) : size of filtering */
- )
-{
- Word16 i,*p1, *p2;
- Word32 s;
- for (i = 0; i < lg; i++)
- {
- p1 = a;
- p2 = &x[i];
- s = vo_mult32((*p1++), (*p2--));
- s += vo_mult32((*p1++), (*p2--));
- s += vo_mult32((*p1++), (*p2--));
- s += vo_mult32((*p1++), (*p2--));
- s += vo_mult32((*p1++), (*p2--));
- s += vo_mult32((*p1++), (*p2--));
- s += vo_mult32((*p1++), (*p2--));
- s += vo_mult32((*p1++), (*p2--));
- s += vo_mult32((*p1++), (*p2--));
- s += vo_mult32((*p1++), (*p2--));
- s += vo_mult32((*p1++), (*p2--));
- s += vo_mult32((*p1++), (*p2--));
- s += vo_mult32((*p1++), (*p2--));
- s += vo_mult32((*p1++), (*p2--));
- s += vo_mult32((*p1++), (*p2--));
- s += vo_mult32((*p1++), (*p2--));
- s += vo_mult32((*p1), (*p2));
-
- s = L_shl2(s, 5);
- y[i] = extract_h(L_add(s, 0x8000));
- }
-
- return;
-}
-
-
-
+/* + ** Copyright 2003-2010, VisualOn, Inc. + ** + ** Licensed under the Apache License, Version 2.0 (the "License"); + ** you may not use this file except in compliance with the License. + ** You may obtain a copy of the License at + ** + ** http://www.apache.org/licenses/LICENSE-2.0 + ** + ** Unless required by applicable law or agreed to in writing, software + ** distributed under the License is distributed on an "AS IS" BASIS, + ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + ** See the License for the specific language governing permissions and + ** limitations under the License. + */ + +/*********************************************************************** +* File: residu.c * +* * +* Description: Compute the LPC residual by filtering * +* the input speech through A(z) * +* * +************************************************************************/ + +#include "typedef.h" +#include "basic_op.h" + +void Residu( + Word16 a[], /* (i) Q12 : prediction coefficients */ + Word16 x[], /* (i) : speech (values x[-m..-1] are needed */ + Word16 y[], /* (o) x2 : residual signal */ + Word16 lg /* (i) : size of filtering */ + ) +{ + Word16 i,*p1, *p2; + Word32 s; + for (i = 0; i < lg; i++) + { + p1 = a; + p2 = &x[i]; + s = vo_mult32((*p1++), (*p2--)); + s += vo_mult32((*p1++), (*p2--)); + s += vo_mult32((*p1++), (*p2--)); + s += vo_mult32((*p1++), (*p2--)); + s += vo_mult32((*p1++), (*p2--)); + s += vo_mult32((*p1++), (*p2--)); + s += vo_mult32((*p1++), (*p2--)); + s += vo_mult32((*p1++), (*p2--)); + s += vo_mult32((*p1++), (*p2--)); + s += vo_mult32((*p1++), (*p2--)); + s += vo_mult32((*p1++), (*p2--)); + s += vo_mult32((*p1++), (*p2--)); + s += vo_mult32((*p1++), (*p2--)); + s += vo_mult32((*p1++), (*p2--)); + s += vo_mult32((*p1++), (*p2--)); + s += vo_mult32((*p1++), (*p2--)); + s += vo_mult32((*p1), (*p2)); + + s = L_shl2(s, 5); + y[i] = extract_h(L_add(s, 0x8000)); + } + + return; +} + + + |