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The Android Open Source Project2729ea92008-10-21 07:00:00 -07001/*
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#include <utils/Parcel.h>
21
22#include <utils/IMemory.h>
23#include <media/IMediaPlayerService.h>
The Android Open Source Project7b5eb022008-12-17 18:05:43 -080024#include <media/IMediaRecorder.h>
The Android Open Source Project2729ea92008-10-21 07:00:00 -070025
26namespace android {
27
28enum {
29 CREATE_URL = IBinder::FIRST_CALL_TRANSACTION,
30 CREATE_FD,
31 DECODE_URL,
32 DECODE_FD,
The Android Open Source Project7b5eb022008-12-17 18:05:43 -080033 CREATE_MEDIA_RECORDER,
34 CREATE_METADATA_RETRIEVER,
The Android Open Source Project2729ea92008-10-21 07:00:00 -070035};
36
37class BpMediaPlayerService: public BpInterface<IMediaPlayerService>
38{
39public:
40 BpMediaPlayerService(const sp<IBinder>& impl)
41 : BpInterface<IMediaPlayerService>(impl)
42 {
43 }
44
The Android Open Source Project7b5eb022008-12-17 18:05:43 -080045 virtual sp<IMediaMetadataRetriever> createMetadataRetriever(pid_t pid)
46 {
47 Parcel data, reply;
48 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
49 data.writeInt32(pid);
50 remote()->transact(CREATE_METADATA_RETRIEVER, data, &reply);
51 return interface_cast<IMediaMetadataRetriever>(reply.readStrongBinder());
52 }
53
The Android Open Source Project2729ea92008-10-21 07:00:00 -070054 virtual sp<IMediaPlayer> create(pid_t pid, const sp<IMediaPlayerClient>& client, const char* url)
55 {
56 Parcel data, reply;
57 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
58 data.writeInt32(pid);
59 data.writeStrongBinder(client->asBinder());
60 data.writeCString(url);
61 remote()->transact(CREATE_URL, data, &reply);
62 return interface_cast<IMediaPlayer>(reply.readStrongBinder());
63 }
64
The Android Open Source Project7b5eb022008-12-17 18:05:43 -080065 virtual sp<IMediaRecorder> createMediaRecorder(pid_t pid)
66 {
67 Parcel data, reply;
68 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
69 data.writeInt32(pid);
70 remote()->transact(CREATE_MEDIA_RECORDER, data, &reply);
71 return interface_cast<IMediaRecorder>(reply.readStrongBinder());
72 }
73
The Android Open Source Project2729ea92008-10-21 07:00:00 -070074 virtual sp<IMediaPlayer> create(pid_t pid, const sp<IMediaPlayerClient>& client, int fd, int64_t offset, int64_t length)
75 {
76 Parcel data, reply;
77 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
78 data.writeInt32(pid);
79 data.writeStrongBinder(client->asBinder());
80 data.writeFileDescriptor(fd);
81 data.writeInt64(offset);
82 data.writeInt64(length);
83 remote()->transact(CREATE_FD, data, &reply);
84 return interface_cast<IMediaPlayer>(reply.readStrongBinder());
85 }
86
The Android Open Source Project7b5eb022008-12-17 18:05:43 -080087 virtual sp<IMemory> decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, int* pFormat)
The Android Open Source Project2729ea92008-10-21 07:00:00 -070088 {
89 Parcel data, reply;
90 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
91 data.writeCString(url);
92 remote()->transact(DECODE_URL, data, &reply);
93 *pSampleRate = uint32_t(reply.readInt32());
94 *pNumChannels = reply.readInt32();
The Android Open Source Project7b5eb022008-12-17 18:05:43 -080095 *pFormat = reply.readInt32();
The Android Open Source Project2729ea92008-10-21 07:00:00 -070096 return interface_cast<IMemory>(reply.readStrongBinder());
97 }
98
The Android Open Source Project7b5eb022008-12-17 18:05:43 -080099 virtual sp<IMemory> decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, int* pFormat)
The Android Open Source Project2729ea92008-10-21 07:00:00 -0700100 {
101 Parcel data, reply;
102 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
103 data.writeFileDescriptor(fd);
104 data.writeInt64(offset);
105 data.writeInt64(length);
106 remote()->transact(DECODE_FD, data, &reply);
107 *pSampleRate = uint32_t(reply.readInt32());
108 *pNumChannels = reply.readInt32();
The Android Open Source Project7b5eb022008-12-17 18:05:43 -0800109 *pFormat = reply.readInt32();
The Android Open Source Project2729ea92008-10-21 07:00:00 -0700110 return interface_cast<IMemory>(reply.readStrongBinder());
111 }
112};
113
114IMPLEMENT_META_INTERFACE(MediaPlayerService, "android.hardware.IMediaPlayerService");
115
116// ----------------------------------------------------------------------
117
118#define CHECK_INTERFACE(interface, data, reply) \
119 do { if (!data.enforceInterface(interface::getInterfaceDescriptor())) { \
120 LOGW("Call incorrectly routed to " #interface); \
121 return PERMISSION_DENIED; \
122 } } while (0)
123
124status_t BnMediaPlayerService::onTransact(
125 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
126{
127 switch(code) {
128 case CREATE_URL: {
129 CHECK_INTERFACE(IMediaPlayerService, data, reply);
130 pid_t pid = data.readInt32();
131 sp<IMediaPlayerClient> client = interface_cast<IMediaPlayerClient>(data.readStrongBinder());
132 const char* url = data.readCString();
133 sp<IMediaPlayer> player = create(pid, client, url);
134 reply->writeStrongBinder(player->asBinder());
135 return NO_ERROR;
136 } break;
137 case CREATE_FD: {
138 CHECK_INTERFACE(IMediaPlayerService, data, reply);
139 pid_t pid = data.readInt32();
140 sp<IMediaPlayerClient> client = interface_cast<IMediaPlayerClient>(data.readStrongBinder());
141 int fd = dup(data.readFileDescriptor());
142 int64_t offset = data.readInt64();
143 int64_t length = data.readInt64();
144 sp<IMediaPlayer> player = create(pid, client, fd, offset, length);
145 reply->writeStrongBinder(player->asBinder());
146 return NO_ERROR;
147 } break;
148 case DECODE_URL: {
149 CHECK_INTERFACE(IMediaPlayerService, data, reply);
150 const char* url = data.readCString();
151 uint32_t sampleRate;
152 int numChannels;
The Android Open Source Project7b5eb022008-12-17 18:05:43 -0800153 int format;
154 sp<IMemory> player = decode(url, &sampleRate, &numChannels, &format);
The Android Open Source Project2729ea92008-10-21 07:00:00 -0700155 reply->writeInt32(sampleRate);
156 reply->writeInt32(numChannels);
The Android Open Source Project7b5eb022008-12-17 18:05:43 -0800157 reply->writeInt32(format);
The Android Open Source Project2729ea92008-10-21 07:00:00 -0700158 reply->writeStrongBinder(player->asBinder());
159 return NO_ERROR;
160 } break;
161 case DECODE_FD: {
162 CHECK_INTERFACE(IMediaPlayerService, data, reply);
163 int fd = dup(data.readFileDescriptor());
164 int64_t offset = data.readInt64();
165 int64_t length = data.readInt64();
166 uint32_t sampleRate;
167 int numChannels;
The Android Open Source Project7b5eb022008-12-17 18:05:43 -0800168 int format;
169 sp<IMemory> player = decode(fd, offset, length, &sampleRate, &numChannels, &format);
The Android Open Source Project2729ea92008-10-21 07:00:00 -0700170 reply->writeInt32(sampleRate);
171 reply->writeInt32(numChannels);
The Android Open Source Project7b5eb022008-12-17 18:05:43 -0800172 reply->writeInt32(format);
The Android Open Source Project2729ea92008-10-21 07:00:00 -0700173 reply->writeStrongBinder(player->asBinder());
174 return NO_ERROR;
175 } break;
The Android Open Source Project7b5eb022008-12-17 18:05:43 -0800176 case CREATE_MEDIA_RECORDER: {
177 CHECK_INTERFACE(IMediaPlayerService, data, reply);
178 pid_t pid = data.readInt32();
179 sp<IMediaRecorder> recorder = createMediaRecorder(pid);
180 reply->writeStrongBinder(recorder->asBinder());
181 return NO_ERROR;
182 } break;
183 case CREATE_METADATA_RETRIEVER: {
184 CHECK_INTERFACE(IMediaPlayerService, data, reply);
185 pid_t pid = data.readInt32();
186 sp<IMediaMetadataRetriever> retriever = createMetadataRetriever(pid);
187 reply->writeStrongBinder(retriever->asBinder());
188 return NO_ERROR;
189 } break;
The Android Open Source Project2729ea92008-10-21 07:00:00 -0700190 default:
191 return BBinder::onTransact(code, data, reply, flags);
192 }
193}
194
195// ----------------------------------------------------------------------------
196
197}; // namespace android
198