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/* //device/extlibs/pv/android/IAudioTrack.cpp
**
** Copyright 2007, 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 "IAudioTrack"
//#define LOG_NDEBUG 0
#include <utils/Log.h>
#include <stdint.h>
#include <sys/types.h>
#include <binder/Parcel.h>
#include <media/IAudioTrack.h>
namespace android {
enum {
GET_CBLK = IBinder::FIRST_CALL_TRANSACTION,
START,
STOP,
FLUSH,
MUTE,
PAUSE
};
class BpAudioTrack : public BpInterface<IAudioTrack>
{
public:
BpAudioTrack(const sp<IBinder>& impl)
: BpInterface<IAudioTrack>(impl)
{
}
virtual status_t start()
{
Parcel data, reply;
data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
status_t status = remote()->transact(START, data, &reply);
if (status == NO_ERROR) {
status = reply.readInt32();
} else {
LOGW("start() error: %s", strerror(-status));
}
return status;
}
virtual void stop()
{
Parcel data, reply;
data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
remote()->transact(STOP, data, &reply);
}
virtual void flush()
{
Parcel data, reply;
data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
remote()->transact(FLUSH, data, &reply);
}
virtual void mute(bool e)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
data.writeInt32(e);
remote()->transact(MUTE, data, &reply);
}
virtual void pause()
{
Parcel data, reply;
data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
remote()->transact(PAUSE, data, &reply);
}
virtual sp<IMemory> getCblk() const
{
Parcel data, reply;
sp<IMemory> cblk;
data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
status_t status = remote()->transact(GET_CBLK, data, &reply);
if (status == NO_ERROR) {
cblk = interface_cast<IMemory>(reply.readStrongBinder());
}
return cblk;
}
};
IMPLEMENT_META_INTERFACE(AudioTrack, "android.media.IAudioTrack");
// ----------------------------------------------------------------------
status_t BnAudioTrack::onTransact(
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
{
switch(code) {
case GET_CBLK: {
CHECK_INTERFACE(IAudioTrack, data, reply);
reply->writeStrongBinder(getCblk()->asBinder());
return NO_ERROR;
} break;
case START: {
CHECK_INTERFACE(IAudioTrack, data, reply);
reply->writeInt32(start());
return NO_ERROR;
} break;
case STOP: {
CHECK_INTERFACE(IAudioTrack, data, reply);
stop();
return NO_ERROR;
} break;
case FLUSH: {
CHECK_INTERFACE(IAudioTrack, data, reply);
flush();
return NO_ERROR;
} break;
case MUTE: {
CHECK_INTERFACE(IAudioTrack, data, reply);
mute( data.readInt32() );
return NO_ERROR;
} break;
case PAUSE: {
CHECK_INTERFACE(IAudioTrack, data, reply);
pause();
return NO_ERROR;
}
default:
return BBinder::onTransact(code, data, reply, flags);
}
}
}; // namespace android
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