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authorThe Android Open Source Project <initial-contribution@android.com>2009-02-10 15:44:00 -0800
committerThe Android Open Source Project <initial-contribution@android.com>2009-02-10 15:44:00 -0800
commit5e07b5774c8b376776caa4f5b0a193767697e97e (patch)
tree3260f49c6f0c5b4699ac6b80b4dc505566af17e8 /media/libmedia/IAudioFlingerClient.cpp
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+/*
+ * Copyright (C) 2009 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.
+ */
+
+#define LOG_TAG "IAudioFlingerClient"
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Parcel.h>
+
+#include <media/IAudioFlingerClient.h>
+
+namespace android {
+
+enum {
+ AUDIO_OUTPUT_CHANGED = IBinder::FIRST_CALL_TRANSACTION
+};
+
+class BpAudioFlingerClient : public BpInterface<IAudioFlingerClient>
+{
+public:
+ BpAudioFlingerClient(const sp<IBinder>& impl)
+ : BpInterface<IAudioFlingerClient>(impl)
+ {
+ }
+
+ void audioOutputChanged(uint32_t frameCount, uint32_t samplingRate, uint32_t latency)
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(IAudioFlingerClient::getInterfaceDescriptor());
+ data.writeInt32(frameCount);
+ data.writeInt32(samplingRate);
+ data.writeInt32(latency);
+ remote()->transact(AUDIO_OUTPUT_CHANGED, data, &reply);
+ }
+};
+
+IMPLEMENT_META_INTERFACE(AudioFlingerClient, "android.media.IAudioFlingerClient");
+
+// ----------------------------------------------------------------------
+
+#define CHECK_INTERFACE(interface, data, reply) \
+ do { if (!data.enforceInterface(interface::getInterfaceDescriptor())) { \
+ LOGW("Call incorrectly routed to " #interface); \
+ return PERMISSION_DENIED; \
+ } } while (0)
+
+status_t BnAudioFlingerClient::onTransact(
+ uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+ switch(code) {
+ case AUDIO_OUTPUT_CHANGED: {
+ CHECK_INTERFACE(IAudioFlingerClient, data, reply);
+ uint32_t frameCount = data.readInt32();
+ uint32_t samplingRate = data.readInt32();
+ uint32_t latency = data.readInt32();
+ audioOutputChanged(frameCount, samplingRate, latency);
+ return NO_ERROR;
+ } break;
+ default:
+ return BBinder::onTransact(code, data, reply, flags);
+ }
+}
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android