Home | History | Annotate | Download | only in audio_effects
      1 /*
      2  * Copyright (C) 2013 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef ANDROID_EFFECT_LOUDNESS_ENHANCER_H_
     18 #define ANDROID_EFFECT_LOUDNESS_ENHANCER_H_
     19 
     20 #include <hardware/audio_effect.h>
     21 
     22 #if __cplusplus
     23 extern "C" {
     24 #endif
     25 
     26 // this effect is not defined in OpenSL ES as one of the standard effects
     27 static const effect_uuid_t FX_IID_LOUDNESS_ENHANCER_ =
     28         {0xfe3199be, 0xaed0, 0x413f, 0x87bb, {0x11, 0x26, 0x0e, 0xb6, 0x3c, 0xf1}};
     29 const effect_uuid_t * const FX_IID_LOUDNESS_ENHANCER = &FX_IID_LOUDNESS_ENHANCER_;
     30 
     31 #define LOUDNESS_ENHANCER_DEFAULT_TARGET_GAIN_MB 0 // mB
     32 
     33 // enumerated parameters for DRC effect
     34 // to keep in sync with frameworks/base/media/java/android/media/audiofx/LoudnessEnhancer.java
     35 typedef enum
     36 {
     37     LOUDNESS_ENHANCER_PARAM_TARGET_GAIN_MB = 0,// target gain expressed in mB
     38 } t_level_monitor_params;
     39 
     40 #if __cplusplus
     41 }  // extern "C"
     42 #endif
     43 
     44 
     45 #endif /*ANDROID_EFFECT_LOUDNESS_ENHANCER_H_*/
     46