add offloaded audio visualizer
Add library for visualizer effect used when
audio decompression is offloaded to QCOM audio DSP.
The implementation reads PCM back from the proxy port
in the audio DSP.
The audio HAL dynamically loads the effect library if present
and indicates offloaded output activity.
The PCM capture is only active when an offloaded output
is active and at least one effect is enabled on this output.
Bug: 8174410.
Change-Id: Ic78de932f9116e246494f9171c1cc7c3e35a0ea1
diff --git a/visualizer/Android.mk b/visualizer/Android.mk
new file mode 100644
index 0000000..3c92044
--- /dev/null
+++ b/visualizer/Android.mk
@@ -0,0 +1,36 @@
+# Copyright 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.
+
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+ offload_visualizer.c
+
+LOCAL_CFLAGS+= -O2 -fvisibility=hidden
+
+LOCAL_SHARED_LIBRARIES := \
+ libcutils \
+ liblog \
+ libtinyalsa
+
+LOCAL_MODULE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/soundfx
+LOCAL_MODULE:= libqcomvisualizer
+
+LOCAL_C_INCLUDES := \
+ external/tinyalsa/include \
+ $(call include-path-for, audio-effects)
+
+include $(BUILD_SHARED_LIBRARY)