1 files changed, 51 insertions, 0 deletions
diff --git a/include/private/media/AudioEffectShared.h b/include/private/media/AudioEffectShared.h
new file mode 100644
index 0000000..a3a99a4
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+++ b/include/private/media/AudioEffectShared.h
@@ -0,0 +1,51 @@
+/*
+ * 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.
+ */
+
+#ifndef ANDROID_EFFECTCBASESHARED_H
+#define ANDROID_EFFECTCBASESHARED_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/threads.h>
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+// Size of buffer used to exchange parameters between application and mediaserver processes.
+#define EFFECT_PARAM_BUFFER_SIZE 1024
+
+
+// Shared memory area used to exchange parameters between application and mediaserver
+// process.
+struct effect_param_cblk_t
+{
+                Mutex       lock;
+    volatile    uint32_t    clientIndex;    // Current read/write index for application
+    volatile    uint32_t    serverIndex;    // Current read/write index for mediaserver
+                uint8_t*    buffer;         // start of parameter buffer
+
+                effect_param_cblk_t()
+                    : lock(Mutex::SHARED), clientIndex(0), serverIndex(0) {}
+};
+
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_EFFECTCBASESHARED_H