MediaRecorderClient.cpp revision 4ca2c7c913f8bd4ada13aca56d36045d42d1e00f 
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 <android_runtime/ActivityManager.h>
29#include <binder/IPCThreadState.h>
30#include <binder/IServiceManager.h>
31#include <binder/MemoryHeapBase.h>
32#include <binder/MemoryBase.h>
33
34#include <utils/String16.h>
35
36#include <media/AudioTrack.h>
37
38#include <system/audio.h>
39
40#include "MediaRecorderClient.h"
41#include "MediaPlayerService.h"
42
43#include "StagefrightRecorder.h"
44
45namespace android {
46
47const char* cameraPermission = "android.permission.CAMERA";
48const char* recordAudioPermission = "android.permission.RECORD_AUDIO";
49
50static bool checkPermission(const char* permissionString) {
51#ifndef HAVE_ANDROID_OS
52    return true;
53#endif
54    if (getpid() == IPCThreadState::self()->getCallingPid()) return true;
55    bool ok = checkCallingPermission(String16(permissionString));
56    if (!ok) LOGE("Request requires %s", permissionString);
57    return ok;
58}
59
60status_t MediaRecorderClient::setCamera(const sp<ICamera>& camera,
61                                        const sp<ICameraRecordingProxy>& proxy)
62{
63    LOGV("setCamera");
64    Mutex::Autolock lock(mLock);
65    if (mRecorder == NULL) {
66        LOGE("recorder is not initialized");
67        return NO_INIT;
68    }
69    return mRecorder->setCamera(camera, proxy);
70}
71
72status_t MediaRecorderClient::setPreviewSurface(const sp<Surface>& surface)
73{
74    LOGV("setPreviewSurface");
75    Mutex::Autolock lock(mLock);
76    if (mRecorder == NULL) {
77        LOGE("recorder is not initialized");
78        return NO_INIT;
79    }
80    return mRecorder->setPreviewSurface(surface);
81}
82
83status_t MediaRecorderClient::setVideoSource(int vs)
84{
85    LOGV("setVideoSource(%d)", vs);
86    if (!checkPermission(cameraPermission)) {
87        return PERMISSION_DENIED;
88    }
89    Mutex::Autolock lock(mLock);
90    if (mRecorder == NULL)	{
91        LOGE("recorder is not initialized");
92        return NO_INIT;
93    }
94    return mRecorder->setVideoSource((video_source)vs);
95}
96
97status_t MediaRecorderClient::setAudioSource(int as)
98{
99    LOGV("setAudioSource(%d)", as);
100    if (!checkPermission(recordAudioPermission)) {
101        return PERMISSION_DENIED;
102    }
103    Mutex::Autolock lock(mLock);
104    if (mRecorder == NULL)  {
105        LOGE("recorder is not initialized");
106        return NO_INIT;
107    }
108    return mRecorder->setAudioSource((audio_source_t)as);
109}
110
111status_t MediaRecorderClient::setOutputFormat(int of)
112{
113    LOGV("setOutputFormat(%d)", of);
114    Mutex::Autolock lock(mLock);
115    if (mRecorder == NULL) {
116        LOGE("recorder is not initialized");
117        return NO_INIT;
118    }
119    return mRecorder->setOutputFormat((output_format)of);
120}
121
122status_t MediaRecorderClient::setVideoEncoder(int ve)
123{
124    LOGV("setVideoEncoder(%d)", ve);
125    Mutex::Autolock lock(mLock);
126    if (mRecorder == NULL) {
127        LOGE("recorder is not initialized");
128        return NO_INIT;
129    }
130    return mRecorder->setVideoEncoder((video_encoder)ve);
131}
132
133status_t MediaRecorderClient::setAudioEncoder(int ae)
134{
135    LOGV("setAudioEncoder(%d)", ae);
136    Mutex::Autolock lock(mLock);
137    if (mRecorder == NULL) {
138        LOGE("recorder is not initialized");
139        return NO_INIT;
140    }
141    return mRecorder->setAudioEncoder((audio_encoder)ae);
142}
143
144status_t MediaRecorderClient::setOutputFile(const char* path)
145{
146    LOGV("setOutputFile(%s)", path);
147    Mutex::Autolock lock(mLock);
148    if (mRecorder == NULL) {
149        LOGE("recorder is not initialized");
150        return NO_INIT;
151    }
152    return mRecorder->setOutputFile(path);
153}
154
155status_t MediaRecorderClient::setOutputFile(int fd, int64_t offset, int64_t length)
156{
157    LOGV("setOutputFile(%d, %lld, %lld)", fd, offset, length);
158    Mutex::Autolock lock(mLock);
159    if (mRecorder == NULL) {
160        LOGE("recorder is not initialized");
161        return NO_INIT;
162    }
163    return mRecorder->setOutputFile(fd, offset, length);
164}
165
166status_t MediaRecorderClient::setOutputFileAuxiliary(int fd)
167{
168    LOGV("setOutputFileAuxiliary(%d)", fd);
169    Mutex::Autolock lock(mLock);
170    if (mRecorder == NULL) {
171        LOGE("recorder is not initialized");
172        return NO_INIT;
173    }
174    return mRecorder->setOutputFileAuxiliary(fd);
175}
176
177status_t MediaRecorderClient::setVideoSize(int width, int height)
178{
179    LOGV("setVideoSize(%dx%d)", width, height);
180    Mutex::Autolock lock(mLock);
181    if (mRecorder == NULL) {
182        LOGE("recorder is not initialized");
183        return NO_INIT;
184    }
185    return mRecorder->setVideoSize(width, height);
186}
187
188status_t MediaRecorderClient::setVideoFrameRate(int frames_per_second)
189{
190    LOGV("setVideoFrameRate(%d)", frames_per_second);
191    Mutex::Autolock lock(mLock);
192    if (mRecorder == NULL) {
193        LOGE("recorder is not initialized");
194        return NO_INIT;
195    }
196    return mRecorder->setVideoFrameRate(frames_per_second);
197}
198
199status_t MediaRecorderClient::setParameters(const String8& params) {
200    LOGV("setParameters(%s)", params.string());
201    Mutex::Autolock lock(mLock);
202    if (mRecorder == NULL) {
203        LOGE("recorder is not initialized");
204        return NO_INIT;
205    }
206    return mRecorder->setParameters(params);
207}
208
209status_t MediaRecorderClient::prepare()
210{
211    LOGV("prepare");
212    Mutex::Autolock lock(mLock);
213    if (mRecorder == NULL) {
214        LOGE("recorder is not initialized");
215        return NO_INIT;
216    }
217    return mRecorder->prepare();
218}
219
220
221status_t MediaRecorderClient::getMaxAmplitude(int* max)
222{
223    LOGV("getMaxAmplitude");
224    Mutex::Autolock lock(mLock);
225    if (mRecorder == NULL) {
226        LOGE("recorder is not initialized");
227        return NO_INIT;
228    }
229    return mRecorder->getMaxAmplitude(max);
230}
231
232status_t MediaRecorderClient::start()
233{
234    LOGV("start");
235    Mutex::Autolock lock(mLock);
236    if (mRecorder == NULL) {
237        LOGE("recorder is not initialized");
238        return NO_INIT;
239    }
240    return mRecorder->start();
241
242}
243
244status_t MediaRecorderClient::stop()
245{
246    LOGV("stop");
247    Mutex::Autolock lock(mLock);
248    if (mRecorder == NULL) {
249        LOGE("recorder is not initialized");
250        return NO_INIT;
251    }
252    return mRecorder->stop();
253}
254
255status_t MediaRecorderClient::init()
256{
257    LOGV("init");
258    Mutex::Autolock lock(mLock);
259    if (mRecorder == NULL) {
260        LOGE("recorder is not initialized");
261        return NO_INIT;
262    }
263    return mRecorder->init();
264}
265
266status_t MediaRecorderClient::close()
267{
268    LOGV("close");
269    Mutex::Autolock lock(mLock);
270    if (mRecorder == NULL) {
271        LOGE("recorder is not initialized");
272        return NO_INIT;
273    }
274    return mRecorder->close();
275}
276
277
278status_t MediaRecorderClient::reset()
279{
280    LOGV("reset");
281    Mutex::Autolock lock(mLock);
282    if (mRecorder == NULL) {
283        LOGE("recorder is not initialized");
284        return NO_INIT;
285    }
286    return mRecorder->reset();
287}
288
289status_t MediaRecorderClient::release()
290{
291    LOGV("release");
292    Mutex::Autolock lock(mLock);
293    if (mRecorder != NULL) {
294        delete mRecorder;
295        mRecorder = NULL;
296        wp<MediaRecorderClient> client(this);
297        mMediaPlayerService->removeMediaRecorderClient(client);
298    }
299    return NO_ERROR;
300}
301
302MediaRecorderClient::MediaRecorderClient(const sp<MediaPlayerService>& service, pid_t pid)
303{
304    LOGV("Client constructor");
305    mPid = pid;
306    mRecorder = new StagefrightRecorder;
307    mMediaPlayerService = service;
308}
309
310MediaRecorderClient::~MediaRecorderClient()
311{
312    LOGV("Client destructor");
313    release();
314}
315
316status_t MediaRecorderClient::setListener(const sp<IMediaRecorderClient>& listener)
317{
318    LOGV("setListener");
319    Mutex::Autolock lock(mLock);
320    if (mRecorder == NULL) {
321        LOGE("recorder is not initialized");
322        return NO_INIT;
323    }
324    return mRecorder->setListener(listener);
325}
326
327status_t MediaRecorderClient::dump(int fd, const Vector<String16>& args) const {
328    if (mRecorder != NULL) {
329        return mRecorder->dump(fd, args);
330    }
331    return OK;
332}
333
334}; // namespace android
335