Audio effect header for loudness enhancement

Not defined in OpenSL ES.
Single parameter: target gain, in mB

Bug 8413913

Change-Id: I088009b7471b21502cbeb84a668ebe3484aaea84

1 files changed, 45 insertions, 0 deletions

diff --git a/audio_effects/include/audio_effects/effect_loudnessenhancer.h b/audio_effects/include/audio_effects/effect_loudnessenhancer.h
new file mode 100644
index 00000000..c5bcaee8
--- /dev/null
+++ b/audio_effects/include/audio_effects/effect_loudnessenhancer.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#ifndef ANDROID_EFFECT_LOUDNESS_ENHANCER_H_
+#define ANDROID_EFFECT_LOUDNESS_ENHANCER_H_
+
+#include <hardware/audio_effect.h>
+
+#if __cplusplus
+extern "C" {
+#endif
+
+// this effect is not defined in OpenSL ES as one of the standard effects
+static const effect_uuid_t FX_IID_LOUDNESS_ENHANCER_ =
+        {0xfe3199be, 0xaed0, 0x413f, 0x87bb, {0x11, 0x26, 0x0e, 0xb6, 0x3c, 0xf1}};
+const effect_uuid_t * const FX_IID_LOUDNESS_ENHANCER = &FX_IID_LOUDNESS_ENHANCER_;
+
+#define LOUDNESS_ENHANCER_DEFAULT_TARGET_GAIN_MB 0 // mB
+
+// enumerated parameters for DRC effect
+// to keep in sync with frameworks/base/media/java/android/media/audiofx/LoudnessEnhancer.java
+typedef enum
+{
+    LOUDNESS_ENHANCER_PARAM_TARGET_GAIN_MB = 0,// target gain expressed in mB
+} t_level_monitor_params;
+
+#if __cplusplus
+}  // extern "C"
+#endif
+
+
+#endif /*ANDROID_EFFECT_LOUDNESS_ENHANCER_H_*/