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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/Common/lib/AGC.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/Common/lib/AGC.h')
-rwxr-xr-x | media/libeffects/lvm/lib/Common/lib/AGC.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/media/libeffects/lvm/lib/Common/lib/AGC.h b/media/libeffects/lvm/lib/Common/lib/AGC.h new file mode 100755 index 0000000..980a8e3 --- /dev/null +++ b/media/libeffects/lvm/lib/Common/lib/AGC.h @@ -0,0 +1,92 @@ +/* + * 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: 1000 $ + $Date: 2010-06-28 13:08:20 +0200 (Mon, 28 Jun 2010) $ + +***********************************************************************************/ + +#ifndef __AGC_H__ +#define __AGC_H__ + + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +/**********************************************************************************/ +/* */ +/* Includes */ +/* */ +/**********************************************************************************/ + +#include "LVM_Types.h" + + +/**********************************************************************************/ +/* */ +/* Types */ +/* */ +/**********************************************************************************/ + +typedef struct +{ + LVM_INT32 AGC_Gain; /* The current AGC gain */ + LVM_INT32 AGC_MaxGain; /* The maximum AGC gain */ + LVM_INT32 Volume; /* The current volume setting */ + LVM_INT32 Target; /* The target volume setting */ + LVM_INT32 AGC_Target; /* AGC target level */ + LVM_INT16 AGC_Attack; /* AGC attack scaler */ + LVM_INT16 AGC_Decay; /* AGC decay scaler */ + LVM_INT16 AGC_GainShift; /* The gain shift */ + LVM_INT16 VolumeShift; /* Volume shift scaling */ + LVM_INT16 VolumeTC; /* Volume update time constant */ + +} AGC_MIX_VOL_2St1Mon_D32_t; + + +/**********************************************************************************/ +/* */ +/* Function Prototypes */ +/* */ +/**********************************************************************************/ + +void AGC_MIX_VOL_2St1Mon_D32_WRA(AGC_MIX_VOL_2St1Mon_D32_t *pInstance, /* Instance pointer */ + const LVM_INT32 *pStSrc, /* Stereo source */ + const LVM_INT32 *pMonoSrc, /* Mono source */ + LVM_INT32 *pDst, /* Stereo destination */ + LVM_UINT16 n); /* Number of samples */ + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + + +#endif /* __AGC_H__ */ + + + + + + + + + + |