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Diffstat (limited to 'media/libmedia/IDirectTrack.cpp')
| -rw-r--r-- | media/libmedia/IDirectTrack.cpp | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/media/libmedia/IDirectTrack.cpp b/media/libmedia/IDirectTrack.cpp new file mode 100644 index 0000000..480761f --- /dev/null +++ b/media/libmedia/IDirectTrack.cpp @@ -0,0 +1,178 @@ +/* +** Copyright (c) 2012, The Linux Foundation. All rights reserved. +** Not a Contribution, Apache license notifications and license are retained +** for attribution purposes only. +** +** 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 "IDirectTrack" +//#define LOG_NDEBUG 0 +#include <utils/Log.h> + +#include <stdint.h> +#include <sys/types.h> + +#include <binder/Parcel.h> + +#include <media/IDirectTrack.h> + +namespace android { + +enum { + START = IBinder::FIRST_CALL_TRANSACTION, + STOP, + FLUSH, + MUTE, + PAUSE, + SET_VOLUME, + WRITE, + GET_TIMESTAMP +}; + +class BpDirectTrack : public BpInterface<IDirectTrack> +{ +public: + BpDirectTrack(const sp<IBinder>& impl) + : BpInterface<IDirectTrack>(impl) + { + } + + virtual status_t start() + { + Parcel data, reply; + data.writeInterfaceToken(IDirectTrack::getInterfaceDescriptor()); + status_t status = remote()->transact(START, data, &reply); + if (status == NO_ERROR) { + status = reply.readInt32(); + } else { + ALOGW("start() error: %s", strerror(-status)); + } + return status; + } + + virtual void stop() + { + Parcel data, reply; + data.writeInterfaceToken(IDirectTrack::getInterfaceDescriptor()); + remote()->transact(STOP, data, &reply); + } + + virtual void flush() + { + Parcel data, reply; + data.writeInterfaceToken(IDirectTrack::getInterfaceDescriptor()); + remote()->transact(FLUSH, data, &reply); + } + + virtual void mute(bool e) + { + Parcel data, reply; + data.writeInterfaceToken(IDirectTrack::getInterfaceDescriptor()); + data.writeInt32(e); + remote()->transact(MUTE, data, &reply); + } + + virtual void pause() + { + Parcel data, reply; + data.writeInterfaceToken(IDirectTrack::getInterfaceDescriptor()); + remote()->transact(PAUSE, data, &reply); + } + + virtual void setVolume(float left, float right) + { + Parcel data, reply; + data.writeInterfaceToken(IDirectTrack::getInterfaceDescriptor()); + remote()->transact(SET_VOLUME, data, &reply); + } + + virtual ssize_t write(const void* buffer, size_t bytes) + { + Parcel data, reply; + data.writeInterfaceToken(IDirectTrack::getInterfaceDescriptor()); + ssize_t bytesWritten = remote()->transact(WRITE, data, &reply); + return bytesWritten; + } + + virtual int64_t getTimeStamp() { + Parcel data, reply; + data.writeInterfaceToken(IDirectTrack::getInterfaceDescriptor()); + int64_t tstamp = remote()->transact(GET_TIMESTAMP, data, &reply); + return tstamp; + } +}; + +IMPLEMENT_META_INTERFACE(DirectTrack, "android.media.IDirectTrack"); + +// ---------------------------------------------------------------------- + +status_t BnDirectTrack::onTransact( + uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) +{ + switch(code) { + case START: { + CHECK_INTERFACE(IDirectTrack, data, reply); + reply->writeInt32(start()); + return NO_ERROR; + } break; + case STOP: { + CHECK_INTERFACE(IDirectTrack, data, reply); + stop(); + return NO_ERROR; + } break; + case FLUSH: { + CHECK_INTERFACE(IDirectTrack, data, reply); + flush(); + return NO_ERROR; + } break; + case MUTE: { + CHECK_INTERFACE(IDirectTrack, data, reply); + mute( data.readInt32() ); + return NO_ERROR; + } break; + case PAUSE: { + CHECK_INTERFACE(IDirectTrack, data, reply); + pause(); + return NO_ERROR; + } + case SET_VOLUME: { + CHECK_INTERFACE(IDirectTrack, data, reply); + float left = 1.0; + float right = 1.0; + setVolume(left, right); + return NO_ERROR; + } + case WRITE: { + CHECK_INTERFACE(IDirectTrack, data, reply); + const void *buffer = (void *)data.readInt32(); + size_t bytes = data.readInt32(); + ssize_t bytesWritten = write(buffer, bytes); + reply->writeInt32(bytesWritten); + return NO_ERROR; + } + case GET_TIMESTAMP: { + CHECK_INTERFACE(IDirectTrack, data, reply); + int64_t time = getTimeStamp(); + reply->writeInt32(time); + return NO_ERROR; + } + default: + return BBinder::onTransact(code, data, reply, flags); + } +} + +}; // namespace android + |