105 lines
3.7 KiB
C++
105 lines
3.7 KiB
C++
/*
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* Copyright (C) 2009 The Android Open Source Project
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* Copyright (c) 2009-2011, The Linux Foundation. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "IAudioFlingerClient"
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#include <utils/Log.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include <binder/Parcel.h>
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#include <media/IAudioFlingerClient.h>
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#include <media/AudioSystem.h>
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namespace android {
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enum {
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IO_CONFIG_CHANGED = IBinder::FIRST_CALL_TRANSACTION
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};
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class BpAudioFlingerClient : public BpInterface<IAudioFlingerClient>
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{
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public:
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BpAudioFlingerClient(const sp<IBinder>& impl)
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: BpInterface<IAudioFlingerClient>(impl)
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{
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}
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void ioConfigChanged(int event, int ioHandle, void *param2)
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{
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Parcel data, reply;
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data.writeInterfaceToken(IAudioFlingerClient::getInterfaceDescriptor());
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data.writeInt32(event);
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data.writeInt32(ioHandle);
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if (event == AudioSystem::STREAM_CONFIG_CHANGED) {
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uint32_t stream = *(uint32_t *)param2;
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LOGV("ioConfigChanged stream %d", stream);
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data.writeInt32(stream);
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} else if (event != AudioSystem::OUTPUT_CLOSED && event != AudioSystem::INPUT_CLOSED &&
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event != AudioSystem::A2DP_OUTPUT_STATE && event != AudioSystem::EFFECT_CONFIG_CHANGED) {
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AudioSystem::OutputDescriptor *desc = (AudioSystem::OutputDescriptor *)param2;
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data.writeInt32(desc->samplingRate);
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data.writeInt32(desc->format);
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data.writeInt32(desc->channels);
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data.writeInt32(desc->frameCount);
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data.writeInt32(desc->latency);
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}
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//remove parameter IBinder::FLAG_ONEWAY from remote()->transact to make the binder call synchronous.
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remote()->transact(IO_CONFIG_CHANGED, data, &reply);
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}
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};
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IMPLEMENT_META_INTERFACE(AudioFlingerClient, "android.media.IAudioFlingerClient");
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// ----------------------------------------------------------------------
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status_t BnAudioFlingerClient::onTransact(
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uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
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{
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switch(code) {
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case IO_CONFIG_CHANGED: {
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CHECK_INTERFACE(IAudioFlingerClient, data, reply);
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int event = data.readInt32();
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int ioHandle = data.readInt32();
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void *param2 = 0;
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AudioSystem::OutputDescriptor desc;
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uint32_t stream;
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if (event == AudioSystem::STREAM_CONFIG_CHANGED) {
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stream = data.readInt32();
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param2 = &stream;
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LOGV("STREAM_CONFIG_CHANGED stream %d", stream);
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} else if (event != AudioSystem::OUTPUT_CLOSED && event != AudioSystem::INPUT_CLOSED) {
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desc.samplingRate = data.readInt32();
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desc.format = data.readInt32();
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desc.channels = data.readInt32();
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desc.frameCount = data.readInt32();
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desc.latency = data.readInt32();
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param2 = &desc;
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}
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ioConfigChanged(event, ioHandle, param2);
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return NO_ERROR;
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} break;
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default:
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return BBinder::onTransact(code, data, reply, flags);
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}
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}
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// ----------------------------------------------------------------------------
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}; // namespace android
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