MediaRecorderClient.cpp revision 308f3927dee3861586c17df267265ae0c86d79f7 
1/*
2 ** Copyright 2008, The Android Open Source Project
3 **
4 ** Licensed under the Apache License, Version 2.0 (the "License");
5 ** you may not use this file except in compliance with the License.
6 ** You may obtain a copy of the License at
7 **
8 **     http://www.apache.org/licenses/LICENSE-2.0
9 **
10 ** Unless required by applicable law or agreed to in writing, software
11 ** distributed under the License is distributed on an "AS IS" BASIS,
12 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 ** See the License for the specific language governing permissions and
14 ** limitations under the License.
15 */
16
17//#define LOG_NDEBUG 0
18#define LOG_TAG "MediaRecorderService"
19#include <utils/Log.h>
20
21#include <sys/types.h>
22#include <sys/stat.h>
23#include <dirent.h>
24#include <unistd.h>
25#include <string.h>
26#include <cutils/atomic.h>
27#include <cutils/properties.h> // for property_get
28#include <binder/IPCThreadState.h>
29#include <binder/IServiceManager.h>
30#include <binder/MemoryHeapBase.h>
31#include <binder/MemoryBase.h>
32
33#include <utils/String16.h>
34
35#include <system/audio.h>
36
37#include "MediaRecorderClient.h"
38#include "MediaPlayerService.h"
39
40#include "StagefrightRecorder.h"
41#include <gui/IGraphicBufferProducer.h>
42
43namespace android {
44
45const char* cameraPermission = "android.permission.CAMERA";
46const char* recordAudioPermission = "android.permission.RECORD_AUDIO";
47
48static bool checkPermission(const char* permissionString) {
49    if (getpid() == IPCThreadState::self()->getCallingPid()) return true;
50    bool ok = checkCallingPermission(String16(permissionString));
51    if (!ok) ALOGE("Request requires %s", permissionString);
52    return ok;
53}
54
55
56sp<IGraphicBufferProducer> MediaRecorderClient::querySurfaceMediaSource()
57{
58    ALOGV("Query SurfaceMediaSource");
59    Mutex::Autolock lock(mLock);
60    if (mRecorder == NULL) {
61        ALOGE("recorder is not initialized");
62        return NULL;
63    }
64    return mRecorder->querySurfaceMediaSource();
65}
66
67
68
69status_t MediaRecorderClient::setCamera(const sp<ICamera>& camera,
70                                        const sp<ICameraRecordingProxy>& proxy)
71{
72    ALOGV("setCamera");
73    Mutex::Autolock lock(mLock);
74    if (mRecorder == NULL) {
75        ALOGE("recorder is not initialized");
76        return NO_INIT;
77    }
78    return mRecorder->setCamera(camera, proxy);
79}
80
81status_t MediaRecorderClient::setPreviewSurface(const sp<IGraphicBufferProducer>& surface)
82{
83    ALOGV("setPreviewSurface");
84    Mutex::Autolock lock(mLock);
85    if (mRecorder == NULL) {
86        ALOGE("recorder is not initialized");
87        return NO_INIT;
88    }
89    return mRecorder->setPreviewSurface(surface);
90}
91
92status_t MediaRecorderClient::setVideoSource(int vs)
93{
94    ALOGV("setVideoSource(%d)", vs);
95    // Check camera permission for sources other than SURFACE
96    if (vs != VIDEO_SOURCE_SURFACE && !checkPermission(cameraPermission)) {
97        return PERMISSION_DENIED;
98    }
99    Mutex::Autolock lock(mLock);
100    if (mRecorder == NULL)     {
101        ALOGE("recorder is not initialized");
102        return NO_INIT;
103    }
104    return mRecorder->setVideoSource((video_source)vs);
105}
106
107status_t MediaRecorderClient::setAudioSource(int as)
108{
109    ALOGV("setAudioSource(%d)", as);
110    if (!checkPermission(recordAudioPermission)) {
111        return PERMISSION_DENIED;
112    }
113    Mutex::Autolock lock(mLock);
114    if (mRecorder == NULL)  {
115        ALOGE("recorder is not initialized");
116        return NO_INIT;
117    }
118    return mRecorder->setAudioSource((audio_source_t)as);
119}
120
121status_t MediaRecorderClient::setOutputFormat(int of)
122{
123    ALOGV("setOutputFormat(%d)", of);
124    Mutex::Autolock lock(mLock);
125    if (mRecorder == NULL) {
126        ALOGE("recorder is not initialized");
127        return NO_INIT;
128    }
129    return mRecorder->setOutputFormat((output_format)of);
130}
131
132status_t MediaRecorderClient::setVideoEncoder(int ve)
133{
134    ALOGV("setVideoEncoder(%d)", ve);
135    Mutex::Autolock lock(mLock);
136    if (mRecorder == NULL) {
137        ALOGE("recorder is not initialized");
138        return NO_INIT;
139    }
140    return mRecorder->setVideoEncoder((video_encoder)ve);
141}
142
143status_t MediaRecorderClient::setAudioEncoder(int ae)
144{
145    ALOGV("setAudioEncoder(%d)", ae);
146    Mutex::Autolock lock(mLock);
147    if (mRecorder == NULL) {
148        ALOGE("recorder is not initialized");
149        return NO_INIT;
150    }
151    return mRecorder->setAudioEncoder((audio_encoder)ae);
152}
153
154status_t MediaRecorderClient::setOutputFile(const char* path)
155{
156    ALOGV("setOutputFile(%s)", path);
157    Mutex::Autolock lock(mLock);
158    if (mRecorder == NULL) {
159        ALOGE("recorder is not initialized");
160        return NO_INIT;
161    }
162    return mRecorder->setOutputFile(path);
163}
164
165status_t MediaRecorderClient::setOutputFile(int fd, int64_t offset, int64_t length)
166{
167    ALOGV("setOutputFile(%d, %lld, %lld)", fd, offset, length);
168    Mutex::Autolock lock(mLock);
169    if (mRecorder == NULL) {
170        ALOGE("recorder is not initialized");
171        return NO_INIT;
172    }
173    return mRecorder->setOutputFile(fd, offset, length);
174}
175
176status_t MediaRecorderClient::setVideoSize(int width, int height)
177{
178    ALOGV("setVideoSize(%dx%d)", width, height);
179    Mutex::Autolock lock(mLock);
180    if (mRecorder == NULL) {
181        ALOGE("recorder is not initialized");
182        return NO_INIT;
183    }
184    return mRecorder->setVideoSize(width, height);
185}
186
187status_t MediaRecorderClient::setVideoFrameRate(int frames_per_second)
188{
189    ALOGV("setVideoFrameRate(%d)", frames_per_second);
190    Mutex::Autolock lock(mLock);
191    if (mRecorder == NULL) {
192        ALOGE("recorder is not initialized");
193        return NO_INIT;
194    }
195    return mRecorder->setVideoFrameRate(frames_per_second);
196}
197
198status_t MediaRecorderClient::setParameters(const String8& params) {
199    ALOGV("setParameters(%s)", params.string());
200    Mutex::Autolock lock(mLock);
201    if (mRecorder == NULL) {
202        ALOGE("recorder is not initialized");
203        return NO_INIT;
204    }
205    return mRecorder->setParameters(params);
206}
207
208status_t MediaRecorderClient::prepare()
209{
210    ALOGV("prepare");
211    Mutex::Autolock lock(mLock);
212    if (mRecorder == NULL) {
213        ALOGE("recorder is not initialized");
214        return NO_INIT;
215    }
216    return mRecorder->prepare();
217}
218
219
220status_t MediaRecorderClient::getMaxAmplitude(int* max)
221{
222    ALOGV("getMaxAmplitude");
223    Mutex::Autolock lock(mLock);
224    if (mRecorder == NULL) {
225        ALOGE("recorder is not initialized");
226        return NO_INIT;
227    }
228    return mRecorder->getMaxAmplitude(max);
229}
230
231status_t MediaRecorderClient::start()
232{
233    ALOGV("start");
234    Mutex::Autolock lock(mLock);
235    if (mRecorder == NULL) {
236        ALOGE("recorder is not initialized");
237        return NO_INIT;
238    }
239    return mRecorder->start();
240
241}
242
243status_t MediaRecorderClient::stop()
244{
245    ALOGV("stop");
246    Mutex::Autolock lock(mLock);
247    if (mRecorder == NULL) {
248        ALOGE("recorder is not initialized");
249        return NO_INIT;
250    }
251    return mRecorder->stop();
252}
253
254status_t MediaRecorderClient::init()
255{
256    ALOGV("init");
257    Mutex::Autolock lock(mLock);
258    if (mRecorder == NULL) {
259        ALOGE("recorder is not initialized");
260        return NO_INIT;
261    }
262    return mRecorder->init();
263}
264
265status_t MediaRecorderClient::close()
266{
267    ALOGV("close");
268    Mutex::Autolock lock(mLock);
269    if (mRecorder == NULL) {
270        ALOGE("recorder is not initialized");
271        return NO_INIT;
272    }
273    return mRecorder->close();
274}
275
276
277status_t MediaRecorderClient::reset()
278{
279    ALOGV("reset");
280    Mutex::Autolock lock(mLock);
281    if (mRecorder == NULL) {
282        ALOGE("recorder is not initialized");
283        return NO_INIT;
284    }
285    return mRecorder->reset();
286}
287
288status_t MediaRecorderClient::release()
289{
290    ALOGV("release");
291    Mutex::Autolock lock(mLock);
292    if (mRecorder != NULL) {
293        delete mRecorder;
294        mRecorder = NULL;
295        wp<MediaRecorderClient> client(this);
296        mMediaPlayerService->removeMediaRecorderClient(client);
297    }
298    return NO_ERROR;
299}
300
301MediaRecorderClient::MediaRecorderClient(const sp<MediaPlayerService>& service, pid_t pid)
302{
303    ALOGV("Client constructor");
304    mPid = pid;
305    mRecorder = new StagefrightRecorder;
306    mMediaPlayerService = service;
307}
308
309MediaRecorderClient::~MediaRecorderClient()
310{
311    ALOGV("Client destructor");
312    release();
313}
314
315status_t MediaRecorderClient::setListener(const sp<IMediaRecorderClient>& listener)
316{
317    ALOGV("setListener");
318    Mutex::Autolock lock(mLock);
319    if (mRecorder == NULL) {
320        ALOGE("recorder is not initialized");
321        return NO_INIT;
322    }
323    return mRecorder->setListener(listener);
324}
325
326status_t MediaRecorderClient::setClientName(const String16& clientName) {
327    ALOGV("setClientName(%s)", String8(clientName).string());
328    Mutex::Autolock lock(mLock);
329    if (mRecorder == NULL) {
330        ALOGE("recorder is not initialized");
331        return NO_INIT;
332    }
333    return mRecorder->setClientName(clientName);
334}
335
336status_t MediaRecorderClient::dump(int fd, const Vector<String16>& args) const {
337    if (mRecorder != NULL) {
338        return mRecorder->dump(fd, args);
339    }
340    return OK;
341}
342
343}; // namespace android
344