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author | Eric Laurent <elaurent@google.com> | 2010-07-09 12:28:50 -0700 |
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committer | Eric Laurent <elaurent@google.com> | 2010-07-17 06:33:00 -0700 |
commit | 2c8e5cab3faa6d360e222b7a6c40a80083d021ac (patch) | |
tree | fd19b8baa829edb78116b089d1122ea4ef0921e1 /media/libeffects/lvm/lib/StereoWidening/src/LVCS_StereoEnhancer.h | |
parent | ada2ac8e09b6d3f2b3c3155a852ba0fffae1b592 (diff) | |
download | frameworks_av-2c8e5cab3faa6d360e222b7a6c40a80083d021ac.zip frameworks_av-2c8e5cab3faa6d360e222b7a6c40a80083d021ac.tar.gz frameworks_av-2c8e5cab3faa6d360e222b7a6c40a80083d021ac.tar.bz2 |
First submission of audio effect library from NXP software.
This CL contains the first open sourceable version of the audio effect library from NXP software.
The effects implemented are:
- Bass boost
- Virtualizer (stereo widening)
- Equalizer
- Spectrum analyzer
Source file for the effect engines are located under libeffects/lvm/lib
The wrapper implementing the interface with the audio effect framework in under libeffects/lvm/wrapper
The code of other effect libraries has also been reorganized fo clarity:
- the effect factory is now under libeffects/factory
- the test equalizer and reverb effects are under libeffect/testlibs
- the visualizer is under libeffects/virtualizer
Change-Id: I8d91e2181f81b89f8fc0c1e1e6bf552c5809b2eb
Diffstat (limited to 'media/libeffects/lvm/lib/StereoWidening/src/LVCS_StereoEnhancer.h')
-rwxr-xr-x | media/libeffects/lvm/lib/StereoWidening/src/LVCS_StereoEnhancer.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/media/libeffects/lvm/lib/StereoWidening/src/LVCS_StereoEnhancer.h b/media/libeffects/lvm/lib/StereoWidening/src/LVCS_StereoEnhancer.h new file mode 100755 index 0000000..c3f6296 --- /dev/null +++ b/media/libeffects/lvm/lib/StereoWidening/src/LVCS_StereoEnhancer.h @@ -0,0 +1,88 @@ +/* + * Copyright (C) 2004-2010 NXP Software + * Copyright (C) 2010 The Android Open Source Project + * + * 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. + */ + +/************************************************************************************ + + $Author: beq07716 $ + $Revision: 1001 $ + $Date: 2010-06-28 13:23:02 +0200 (Mon, 28 Jun 2010) $ + +*************************************************************************************/ + +#ifndef __LVCS_STEREOENHANCER_H__ +#define __LVCS_STEREOENHANCER_H__ + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + + +/************************************************************************************/ +/* */ +/* Includes */ +/* */ +/************************************************************************************/ + +#include "Filters.h" /* Filter definitions */ +#include "LVCS_Headphone_Coeffs.h" /* Headphone coefficients */ +#include "BIQUAD.h" + + +/************************************************************************************/ +/* */ +/* Structures */ +/* */ +/************************************************************************************/ + +/* Stereo enhancer structure */ +typedef struct +{ + /* + * Middle filter + */ + void (*pBiquadCallBack_Mid)(Biquad_Instance_t*, LVM_INT16*, LVM_INT16*, LVM_INT16); + + /* + * Side filter + */ + void (*pBiquadCallBack_Side)(Biquad_Instance_t*, LVM_INT16*, LVM_INT16*, LVM_INT16); + + LVM_UINT16 MidGain; /* Middle gain in mobile speaker mode */ + +} LVCS_StereoEnhancer_t; + + +/************************************************************************************/ +/* */ +/* Function prototypes */ +/* */ +/************************************************************************************/ + +LVCS_ReturnStatus_en LVCS_SEnhancerInit(LVCS_Handle_t hInstance, + LVCS_Params_t *pParams); + +LVCS_ReturnStatus_en LVCS_StereoEnhancer(LVCS_Handle_t hInstance, + const LVM_INT16 *pInData, + LVM_INT16 *pOutData, + LVM_UINT16 NumSamples); + + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* STEREOENHANCE_H */ |