diff options
Diffstat (limited to 'media/libstagefright/codecs/aacenc/src/spreading.c')
-rw-r--r-- | media/libstagefright/codecs/aacenc/src/spreading.c | 90 |
1 files changed, 45 insertions, 45 deletions
diff --git a/media/libstagefright/codecs/aacenc/src/spreading.c b/media/libstagefright/codecs/aacenc/src/spreading.c index e6fc7da..aaf2fff 100644 --- a/media/libstagefright/codecs/aacenc/src/spreading.c +++ b/media/libstagefright/codecs/aacenc/src/spreading.c @@ -1,29 +1,29 @@ -/*
- ** 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: spreading.c
-
- Content: Spreading of energy function
-
-*******************************************************************************/
-
-#include "basic_op.h"
-#include "oper_32b.h"
-#include "spreading.h"
-
+/* + ** 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: spreading.c + + Content: Spreading of energy function + +*******************************************************************************/ + +#include "basic_op.h" +#include "oper_32b.h" +#include "spreading.h" + /********************************************************************************* * * function name: SpreadingMax @@ -31,22 +31,22 @@ * higher frequencies thr(n) = max(thr(n), sh(n)*thr(n-1)) * lower frequencies thr(n) = max(thr(n), sl(n)*thr(n+1)) * -**********************************************************************************/
-void SpreadingMax(const Word16 pbCnt,
- const Word16 *maskLowFactor,
- const Word16 *maskHighFactor,
- Word32 *pbSpreadedEnergy)
-{
- Word32 i;
-
- /* slope to higher frequencies */
- for (i=1; i<pbCnt; i++) {
- pbSpreadedEnergy[i] = max(pbSpreadedEnergy[i],
- L_mpy_ls(pbSpreadedEnergy[i-1], maskHighFactor[i]));
- }
- /* slope to lower frequencies */
- for (i=pbCnt - 2; i>=0; i--) {
- pbSpreadedEnergy[i] = max(pbSpreadedEnergy[i],
- L_mpy_ls(pbSpreadedEnergy[i+1], maskLowFactor[i]));
- }
-}
+**********************************************************************************/ +void SpreadingMax(const Word16 pbCnt, + const Word16 *maskLowFactor, + const Word16 *maskHighFactor, + Word32 *pbSpreadedEnergy) +{ + Word32 i; + + /* slope to higher frequencies */ + for (i=1; i<pbCnt; i++) { + pbSpreadedEnergy[i] = max(pbSpreadedEnergy[i], + L_mpy_ls(pbSpreadedEnergy[i-1], maskHighFactor[i])); + } + /* slope to lower frequencies */ + for (i=pbCnt - 2; i>=0; i--) { + pbSpreadedEnergy[i] = max(pbSpreadedEnergy[i], + L_mpy_ls(pbSpreadedEnergy[i+1], maskLowFactor[i])); + } +} |