/* //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. */ #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()); remote()->transact(START, data, &reply); return reply.readInt32(); } 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