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| author | James Dong <jdong@google.com> | 2010-05-14 15:45:22 -0700 |
|---|---|---|
| committer | James Dong <jdong@google.com> | 2010-05-19 07:21:25 -0700 |
| commit | 956c553ab0ce72f8074ad0fda2ffd66a0305700c (patch) | |
| tree | fe111ecd29e01c270246f5f338c56806d6d5b136 /media/libstagefright/codecs/amrwbenc/src/random.c | |
| parent | e1f61055b4abb96a86d1ff24b5a7777dfe40fe5f (diff) | |
| download | frameworks_av-956c553ab0ce72f8074ad0fda2ffd66a0305700c.zip frameworks_av-956c553ab0ce72f8074ad0fda2ffd66a0305700c.tar.gz frameworks_av-956c553ab0ce72f8074ad0fda2ffd66a0305700c.tar.bz2 | |
Initial software encoder checkins
Change-Id: I27f387db23594e46384c4eb3a0093ce220bb6b60
Diffstat (limited to 'media/libstagefright/codecs/amrwbenc/src/random.c')
| -rw-r--r-- | media/libstagefright/codecs/amrwbenc/src/random.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/amrwbenc/src/random.c b/media/libstagefright/codecs/amrwbenc/src/random.c new file mode 100644 index 0000000..8baa8bf --- /dev/null +++ b/media/libstagefright/codecs/amrwbenc/src/random.c @@ -0,0 +1,33 @@ +/*
+ ** 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: random.c *
+* *
+* Description: Signed 16 bits random generator *
+* *
+************************************************************************/
+
+#include "typedef.h"
+#include "basic_op.h"
+
+Word16 Random(Word16 * seed)
+{
+ /* static Word16 seed = 21845; */
+ *seed = (Word16)(L_add((L_mult(*seed, 31821) >> 1), 13849L));
+ return (*seed);
+}
+
|