diff options
Diffstat (limited to 'media/libstagefright/codecs/amrwbenc/src/util.c')
| -rw-r--r-- | media/libstagefright/codecs/amrwbenc/src/util.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/amrwbenc/src/util.c b/media/libstagefright/codecs/amrwbenc/src/util.c new file mode 100644 index 0000000..78141dd --- /dev/null +++ b/media/libstagefright/codecs/amrwbenc/src/util.c @@ -0,0 +1,74 @@ +/*
+ ** 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: util.c *
+* *
+* Description: Reset and Copy buffer *
+* *
+************************************************************************/
+
+#include "typedef.h"
+#include "basic_op.h"
+
+/***********************************************************************
+* Function: Set_zero() *
+* Description: Set vector x[] to zero *
+************************************************************************/
+
+void Set_zero(
+ Word16 x[], /* (o) : vector to clear */
+ Word16 L /* (i) : length of vector */
+ )
+{
+ Word32 num = (Word32)L;
+ do{
+ *x++ = 0;
+ }while(--num !=0);
+}
+
+
+/*********************************************************************
+* Function: Copy() *
+* *
+* Description: Copy vector x[] to y[] *
+*********************************************************************/
+
+void Copy(
+ Word16 x[], /* (i) : input vector */
+ Word16 y[], /* (o) : output vector */
+ Word16 L /* (i) : vector length */
+ )
+{
+ Word32 temp1,temp2,num;
+ if(L&1)
+ {
+ temp1 = *x++;
+ *y++ = temp1;
+ }
+ num = (Word32)(L>>1);
+ temp1 = *x++;
+ temp2 = *x++;
+ do{
+ *y++ = temp1;
+ *y++ = temp2;
+ temp1 = *x++;
+ temp2 = *x++;
+ }while(--num!=0);
+}
+
+
+
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