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/*
* Copyright (C) 2016 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 "IAudioManager"
//#define LOG_NDEBUG 0
#include <utils/Log.h>
#include <stdint.h>
#include <sys/types.h>
#include <binder/Parcel.h>
#include <audiomanager/AudioManager.h>
#include <audiomanager/IAudioManager.h>
namespace android {
class BpAudioManager : public BpInterface<IAudioManager>
{
public:
explicit BpAudioManager(const sp<IBinder>& impl)
: BpInterface<IAudioManager>(impl)
{
}
virtual audio_unique_id_t trackPlayer(player_type_t playerType, audio_usage_t usage,
audio_content_type_t content, const sp<IBinder>& player, audio_session_t sessionId) {
Parcel data, reply;
data.writeInterfaceToken(IAudioManager::getInterfaceDescriptor());
data.writeInt32(1); // non-null PlayerIdCard parcelable
// marshall PlayerIdCard data
data.writeInt32((int32_t) playerType);
// write attributes of PlayerIdCard
data.writeInt32((int32_t) usage);
data.writeInt32((int32_t) content);
data.writeInt32(0 /*source: none here, this is a player*/);
data.writeInt32(0 /*flags*/);
// write attributes' tags
data.writeInt32(1 /*FLATTEN_TAGS*/);
data.writeString16(String16("")); // no tags
// write attributes' bundle
data.writeInt32(-1977 /*ATTR_PARCEL_IS_NULL_BUNDLE*/); // no bundle
// write IPlayer
data.writeStrongBinder(player);
// write session Id
data.writeInt32((int32_t)sessionId);
// get new PIId in reply
const status_t res = remote()->transact(TRACK_PLAYER, data, &reply, 0);
if (res != OK || reply.readExceptionCode() != 0) {
ALOGE("trackPlayer() failed, piid is %d", PLAYER_PIID_INVALID);
return PLAYER_PIID_INVALID;
} else {
const audio_unique_id_t piid = (audio_unique_id_t) reply.readInt32();
ALOGV("trackPlayer() returned piid %d", piid);
return piid;
}
}
virtual status_t playerAttributes(audio_unique_id_t piid, audio_usage_t usage,
audio_content_type_t content) {
Parcel data, reply;
data.writeInterfaceToken(IAudioManager::getInterfaceDescriptor());
data.writeInt32((int32_t) piid);
data.writeInt32(1); // non-null AudioAttributes parcelable
data.writeInt32((int32_t) usage);
data.writeInt32((int32_t) content);
data.writeInt32(0 /*source: none here, this is a player*/);
data.writeInt32(0 /*flags*/);
// write attributes' tags
data.writeInt32(1 /*FLATTEN_TAGS*/);
data.writeString16(String16("")); // no tags
// write attributes' bundle
data.writeInt32(-1977 /*ATTR_PARCEL_IS_NULL_BUNDLE*/); // no bundle
return remote()->transact(PLAYER_ATTRIBUTES, data, &reply, IBinder::FLAG_ONEWAY);
}
virtual status_t playerEvent(audio_unique_id_t piid, player_state_t event,
audio_port_handle_t eventId) {
Parcel data, reply;
data.writeInterfaceToken(IAudioManager::getInterfaceDescriptor());
data.writeInt32((int32_t) piid);
data.writeInt32((int32_t) event);
data.writeInt32((int32_t) eventId);
return remote()->transact(PLAYER_EVENT, data, &reply, IBinder::FLAG_ONEWAY);
}
virtual status_t releasePlayer(audio_unique_id_t piid) {
Parcel data, reply;
data.writeInterfaceToken(IAudioManager::getInterfaceDescriptor());
data.writeInt32((int32_t) piid);
return remote()->transact(RELEASE_PLAYER, data, &reply, IBinder::FLAG_ONEWAY);
}
virtual audio_unique_id_t trackRecorder(const sp<IBinder>& recorder) {
Parcel data, reply;
data.writeInterfaceToken(IAudioManager::getInterfaceDescriptor());
data.writeStrongBinder(recorder);
// get new RIId in reply
const status_t res = remote()->transact(TRACK_RECORDER, data, &reply, 0);
if (res != OK || reply.readExceptionCode() != 0) {
ALOGE("trackRecorder() failed, riid is %d", RECORD_RIID_INVALID);
return RECORD_RIID_INVALID;
} else {
const audio_unique_id_t riid = (audio_unique_id_t) reply.readInt32();
ALOGV("trackRecorder() returned riid %d", riid);
return riid;
}
}
virtual status_t recorderEvent(audio_unique_id_t riid, recorder_state_t event) {
Parcel data, reply;
data.writeInterfaceToken(IAudioManager::getInterfaceDescriptor());
data.writeInt32((int32_t) riid);
data.writeInt32((int32_t) event);
return remote()->transact(RECORDER_EVENT, data, &reply, IBinder::FLAG_ONEWAY);
}
virtual status_t releaseRecorder(audio_unique_id_t riid) {
Parcel data, reply;
data.writeInterfaceToken(IAudioManager::getInterfaceDescriptor());
data.writeInt32((int32_t) riid);
return remote()->transact(RELEASE_RECORDER, data, &reply, IBinder::FLAG_ONEWAY);
}
virtual status_t playerSessionId(audio_unique_id_t piid, audio_session_t sessionId) {
Parcel data, reply;
data.writeInterfaceToken(IAudioManager::getInterfaceDescriptor());
data.writeInt32((int32_t) piid);
data.writeInt32((int32_t) sessionId);
return remote()->transact(PLAYER_SESSION_ID, data, &reply, IBinder::FLAG_ONEWAY);
}
virtual status_t portEvent(audio_port_handle_t portId, player_state_t event,
const std::unique_ptr<os::PersistableBundle>& extras) {
Parcel data, reply;
data.writeInterfaceToken(IAudioManager::getInterfaceDescriptor());
data.writeInt32((int32_t) portId);
data.writeInt32((int32_t) event);
// TODO: replace PersistableBundle with own struct
data.writeNullableParcelable(extras);
return remote()->transact(PORT_EVENT, data, &reply, IBinder::FLAG_ONEWAY);
}
};
IMPLEMENT_META_INTERFACE(AudioManager, "android.media.IAudioService");
// ----------------------------------------------------------------------------
}; // namespace android
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