1/*
2**
3** Copyright 2008, The Android Open Source Project
4**
5** Licensed under the Apache License, Version 2.0 (the "License");
6** you may not use this file except in compliance with the License.
7** You may obtain a copy of the License at
8**
9**     http://www.apache.org/licenses/LICENSE-2.0
10**
11** Unless required by applicable law or agreed to in writing, software
12** distributed under the License is distributed on an "AS IS" BASIS,
13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14** See the License for the specific language governing permissions and
15** limitations under the License.
16*/
17
18#include <stdint.h>
19#include <sys/types.h>
20
21#include <binder/Parcel.h>
22#include <binder/IMemory.h>
23#include <media/IMediaCodecList.h>
24#include <media/IMediaHTTPService.h>
25#include <media/IMediaPlayerService.h>
26#include <media/IMediaRecorder.h>
27#include <media/IOMX.h>
28#include <media/IRemoteDisplay.h>
29#include <media/IRemoteDisplayClient.h>
30#include <media/IStreamSource.h>
31
32#include <utils/Errors.h>  // for status_t
33#include <utils/String8.h>
34
35namespace android {
36
37enum {
38    CREATE = IBinder::FIRST_CALL_TRANSACTION,
39    CREATE_MEDIA_RECORDER,
40    CREATE_METADATA_RETRIEVER,
41    ADD_BATTERY_DATA,
42    PULL_BATTERY_DATA,
43    LISTEN_FOR_REMOTE_DISPLAY,
44    GET_CODEC_LIST,
45};
46
47class BpMediaPlayerService: public BpInterface<IMediaPlayerService>
48{
49public:
50    explicit BpMediaPlayerService(const sp<IBinder>& impl)
51        : BpInterface<IMediaPlayerService>(impl)
52    {
53    }
54
55    virtual sp<IMediaMetadataRetriever> createMetadataRetriever()
56    {
57        Parcel data, reply;
58        data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
59        remote()->transact(CREATE_METADATA_RETRIEVER, data, &reply);
60        return interface_cast<IMediaMetadataRetriever>(reply.readStrongBinder());
61    }
62
63    virtual sp<IMediaPlayer> create(
64            const sp<IMediaPlayerClient>& client, audio_session_t audioSessionId) {
65        Parcel data, reply;
66        data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
67        data.writeStrongBinder(IInterface::asBinder(client));
68        data.writeInt32(audioSessionId);
69
70        remote()->transact(CREATE, data, &reply);
71        return interface_cast<IMediaPlayer>(reply.readStrongBinder());
72    }
73
74    virtual sp<IMediaRecorder> createMediaRecorder(const String16 &opPackageName)
75    {
76        Parcel data, reply;
77        data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
78        data.writeString16(opPackageName);
79        remote()->transact(CREATE_MEDIA_RECORDER, data, &reply);
80        return interface_cast<IMediaRecorder>(reply.readStrongBinder());
81    }
82
83    virtual void addBatteryData(uint32_t params) {
84        Parcel data, reply;
85        data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
86        data.writeInt32(params);
87        remote()->transact(ADD_BATTERY_DATA, data, &reply);
88    }
89
90    virtual status_t pullBatteryData(Parcel* reply) {
91        Parcel data;
92        data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
93        return remote()->transact(PULL_BATTERY_DATA, data, reply);
94    }
95
96    virtual sp<IRemoteDisplay> listenForRemoteDisplay(const String16 &opPackageName,
97            const sp<IRemoteDisplayClient>& client, const String8& iface)
98    {
99        Parcel data, reply;
100        data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
101        data.writeString16(opPackageName);
102        data.writeStrongBinder(IInterface::asBinder(client));
103        data.writeString8(iface);
104        remote()->transact(LISTEN_FOR_REMOTE_DISPLAY, data, &reply);
105        return interface_cast<IRemoteDisplay>(reply.readStrongBinder());
106    }
107
108    virtual sp<IMediaCodecList> getCodecList() const {
109        Parcel data, reply;
110        data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
111        remote()->transact(GET_CODEC_LIST, data, &reply);
112        return interface_cast<IMediaCodecList>(reply.readStrongBinder());
113    }
114};
115
116IMPLEMENT_META_INTERFACE(MediaPlayerService, "android.media.IMediaPlayerService");
117
118// ----------------------------------------------------------------------
119
120status_t BnMediaPlayerService::onTransact(
121    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
122{
123    switch (code) {
124        case CREATE: {
125            CHECK_INTERFACE(IMediaPlayerService, data, reply);
126            sp<IMediaPlayerClient> client =
127                interface_cast<IMediaPlayerClient>(data.readStrongBinder());
128            audio_session_t audioSessionId = (audio_session_t) data.readInt32();
129            sp<IMediaPlayer> player = create(client, audioSessionId);
130            reply->writeStrongBinder(IInterface::asBinder(player));
131            return NO_ERROR;
132        } break;
133        case CREATE_MEDIA_RECORDER: {
134            CHECK_INTERFACE(IMediaPlayerService, data, reply);
135            const String16 opPackageName = data.readString16();
136            sp<IMediaRecorder> recorder = createMediaRecorder(opPackageName);
137            reply->writeStrongBinder(IInterface::asBinder(recorder));
138            return NO_ERROR;
139        } break;
140        case CREATE_METADATA_RETRIEVER: {
141            CHECK_INTERFACE(IMediaPlayerService, data, reply);
142            sp<IMediaMetadataRetriever> retriever = createMetadataRetriever();
143            reply->writeStrongBinder(IInterface::asBinder(retriever));
144            return NO_ERROR;
145        } break;
146        case ADD_BATTERY_DATA: {
147            CHECK_INTERFACE(IMediaPlayerService, data, reply);
148            uint32_t params = data.readInt32();
149            addBatteryData(params);
150            return NO_ERROR;
151        } break;
152        case PULL_BATTERY_DATA: {
153            CHECK_INTERFACE(IMediaPlayerService, data, reply);
154            pullBatteryData(reply);
155            return NO_ERROR;
156        } break;
157        case LISTEN_FOR_REMOTE_DISPLAY: {
158            CHECK_INTERFACE(IMediaPlayerService, data, reply);
159            const String16 opPackageName = data.readString16();
160            sp<IRemoteDisplayClient> client(
161                    interface_cast<IRemoteDisplayClient>(data.readStrongBinder()));
162            if (client == NULL) {
163                reply->writeStrongBinder(NULL);
164                return NO_ERROR;
165            }
166            String8 iface(data.readString8());
167            sp<IRemoteDisplay> display(listenForRemoteDisplay(opPackageName, client, iface));
168            reply->writeStrongBinder(IInterface::asBinder(display));
169            return NO_ERROR;
170        } break;
171        case GET_CODEC_LIST: {
172            CHECK_INTERFACE(IMediaPlayerService, data, reply);
173            sp<IMediaCodecList> mcl = getCodecList();
174            reply->writeStrongBinder(IInterface::asBinder(mcl));
175            return NO_ERROR;
176        } break;
177        default:
178            return BBinder::onTransact(code, data, reply, flags);
179    }
180}
181
182// ----------------------------------------------------------------------------
183
184} // namespace android
185