本文为用 MediaRecorder 录制小视频的控件，可以设置视频录制的时间、空间大小、初始时是否打开摄像头等。 此控件为组合控件，继承自 LinearLayout ,为防止出错，需实现 android.media.MediaRecorder.OnErrorListener 接口。
小视频录制界面
MovieRecorderView.java
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
|
import java.io.File;import java.io.IOException;import java.util.Timer;import java.util.TimerTask; import android.content.Context;import android.content.res.TypedArray;import android.hardware.Camera;import android.hardware.Camera.Parameters;import android.media.MediaRecorder;import android.media.MediaRecorder.AudioEncoder;import android.media.MediaRecorder.AudioSource;import android.media.MediaRecorder.OnErrorListener;import android.media.MediaRecorder.OutputFormat;import android.media.MediaRecorder.VideoEncoder;import android.media.MediaRecorder.VideoSource;import android.util.AttributeSet;import android.view.LayoutInflater;import android.view.SurfaceHolder;import android.view.SurfaceHolder.Callback;import android.view.SurfaceView;import android.widget.LinearLayout;import android.widget.ProgressBar; import com.contron.dgyj.R;import com.contron.dgyj.common.Globals;import com.contron.dgyj.im.ImGlobal;import com.lidroid.xutils.util.LogUtils; /** * 视频播放控件 * * @author liuyinjun * * @date 2015-2-5 */public class MovieRecorderView extends LinearLayout implements OnErrorListener { private SurfaceView mSurfaceView; private SurfaceHolder mSurfaceHolder; private ProgressBar mProgressBar; private MediaRecorder mMediaRecorder; private Camera mCamera; private Timer mTimer;// 计时器 private OnRecordFinishListener mOnRecordFinishListener;// 录制完成回调接口 private int mWidth;// 视频分辨率宽度 private int mHeight;// 视频分辨率高度 private boolean isOpenCamera;// 是否一开始就打开摄像头 private int mRecordMaxTime;// 一次拍摄最长时间 private int mTimeCount;// 时间计数 private File mVecordFile = null;// 文件 public MovieRecorderView(Context context) { this(context, null); } public MovieRecorderView(Context context, AttributeSet attrs) { this(context, attrs, 0); } public MovieRecorderView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.MovieRecorderView, defStyle, 0); mWidth = a.getInteger(R.styleable.MovieRecorderView_width, 320);// 默认320 mHeight = a.getInteger(R.styleable.MovieRecorderView_height, 240);// 默认240 isOpenCamera = a.getBoolean(R.styleable.MovieRecorderView_is_open_camera, true);// 默认打开 mRecordMaxTime = a.getInteger(R.styleable.MovieRecorderView_record_max_time, 10);// 默认为10 LayoutInflater.from(context).inflate(R.layout.movie_recorder_view, this); mSurfaceView = (SurfaceView) findViewById(R.id.surfaceview); mProgressBar = (ProgressBar) findViewById(R.id.progressBar); mProgressBar.setMax(mRecordMaxTime);// 设置进度条最大量 mSurfaceHolder = mSurfaceView.getHolder(); mSurfaceHolder.addCallback(new CustomCallBack()); mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); a.recycle(); } /** * * @author liuyinjun * * @date 2015-2-5 */ private class CustomCallBack implements Callback { @Override public void surfaceCreated(SurfaceHolder holder) { if (!isOpenCamera) return; try { initCamera(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } @Override public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { } @Override public void surfaceDestroyed(SurfaceHolder holder) { if (!isOpenCamera) return; freeCameraResource(); } } /** * 初始化摄像头 * * @author liuyinjun * @date 2015-2-5 * @throws IOException */ private void initCamera() throws IOException { if (mCamera != null) { freeCameraResource(); } try { mCamera = Camera.open(); } catch (Exception e) { e.printStackTrace(); freeCameraResource(); } if (mCamera == null) return; setCameraParams(); mCamera.setDisplayOrientation(90); mCamera.setPreviewDisplay(mSurfaceHolder); mCamera.startPreview(); mCamera.unlock(); } /** * 设置摄像头为竖屏 * * @author liuyinjun * @date 2015-2-5 */ private void setCameraParams() { if (mCamera != null) { Parameters params = mCamera.getParameters(); params.set("orientation", "portrait"); mCamera.setParameters(params); } } /** * 释放摄像头资源 * * @author liuyinjun * @date 2015-2-5 */ private void freeCameraResource() { if (mCamera != null) { mCamera.setPreviewCallback(null); mCamera.stopPreview(); mCamera.lock(); mCamera.release(); mCamera = null; } } private void createRecordDir() { File sampleDir = new File(Environment.getExternalStorageDirectory() + File.separator + "im/video/"); if (!sampleDir.exists()) { sampleDir.mkdirs(); } File vecordDir = sampleDir; // 创建文件 try { mVecordFile = File.createTempFile("recording", ".mp4", vecordDir);//mp4格式 LogUtils.i(mVecordFile.getAbsolutePath()); } catch (IOException e) { } } /** * 初始化 * * @author liuyinjun * @date 2015-2-5 * @throws IOException */ private void initRecord() throws IOException { mMediaRecorder = new MediaRecorder(); mMediaRecorder.reset(); if (mCamera != null) mMediaRecorder.setCamera(mCamera); mMediaRecorder.setOnErrorListener(this); mMediaRecorder.setPreviewDisplay(mSurfaceHolder.getSurface()); mMediaRecorder.setVideoSource(VideoSource.CAMERA);// 视频源 mMediaRecorder.setAudioSource(AudioSource.MIC);// 音频源 mMediaRecorder.setOutputFormat(OutputFormat.MPEG_4);// 视频输出格式 mMediaRecorder.setAudioEncoder(AudioEncoder.AMR_NB);// 音频格式 mMediaRecorder.setVideoSize(mWidth, mHeight);// 设置分辨率： // mMediaRecorder.setVideoFrameRate(16);// 这个我把它去掉了，感觉没什么用 mMediaRecorder.setVideoEncodingBitRate(1 * 1024 * 512);// 设置帧频率，然后就清晰了 mMediaRecorder.setOrientationHint(90);// 输出旋转90度，保持竖屏录制 mMediaRecorder.setVideoEncoder(VideoEncoder.MPEG_4_SP);// 视频录制格式 // mediaRecorder.setMaxDuration(Constant.MAXVEDIOTIME * 1000); mMediaRecorder.setOutputFile(mVecordFile.getAbsolutePath()); mMediaRecorder.prepare(); try { mMediaRecorder.start(); } catch (IllegalStateException e) { e.printStackTrace(); } catch (RuntimeException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } } /** * 开始录制视频 * * @author liuyinjun * @date 2015-2-5 * @param fileName * 视频储存位置 * @param onRecordFinishListener * 达到指定时间之后回调接口 */ public void record(final OnRecordFinishListener onRecordFinishListener) { this.mOnRecordFinishListener = onRecordFinishListener; createRecordDir(); try { if (!isOpenCamera)// 如果未打开摄像头，则打开 initCamera(); initRecord(); mTimeCount = 0;// 时间计数器重新赋值 mTimer = new Timer(); mTimer.schedule(new TimerTask() { @Override public void run() { // TODO Auto-generated method stub mTimeCount++; mProgressBar.setProgress(mTimeCount);// 设置进度条 if (mTimeCount == mRecordMaxTime) {// 达到指定时间，停止拍摄 stop(); if (mOnRecordFinishListener != null) mOnRecordFinishListener.onRecordFinish(); } } }, 0, 1000); } catch (IOException e) { e.printStackTrace(); } } /** * 停止拍摄 * * @author liuyinjun * @date 2015-2-5 */ public void stop() { stopRecord(); releaseRecord(); freeCameraResource(); } /** * 停止录制 * * @author liuyinjun * @date 2015-2-5 */ public void stopRecord() { mProgressBar.setProgress(0); if (mTimer != null) mTimer.cancel(); if (mMediaRecorder != null) { // 设置后不会崩 mMediaRecorder.setOnErrorListener(null); mMediaRecorder.setPreviewDisplay(null); try { mMediaRecorder.stop(); } catch (IllegalStateException e) { e.printStackTrace(); } catch (RuntimeException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } } } /** * 释放资源 * * @author liuyinjun * @date 2015-2-5 */ private void releaseRecord() { if (mMediaRecorder != null) { mMediaRecorder.setOnErrorListener(null); try { mMediaRecorder.release(); } catch (IllegalStateException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } } mMediaRecorder = null; } public int getTimeCount() { return mTimeCount; } /** * @return the mVecordFile */ public File getmVecordFile() { return mVecordFile; } /** * 录制完成回调接口 * * @author liuyinjun * * @date 2015-2-5 */ public interface OnRecordFinishListener { public void onRecordFinish(); } @Override public void onError(MediaRecorder mr, int what, int extra) { try { if (mr != null) mr.reset(); } catch (IllegalStateException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } }} |
movie_recorder_view.xml
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@android:color/background_dark" android:orientation="vertical"> <SurfaceView android:id="@+id/surfaceview" android:layout_width="fill_parent" android:layout_height="0dp" android:layout_weight="1" /> <ProgressBar android:id="@+id/progressBar" style="?android:attr/progressBarStyleHorizontal" android:layout_width="match_parent" android:layout_height="2dp" /> </LinearLayout> |
attrs.xml
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@android:color/background_dark" android:orientation="vertical"> <SurfaceView android:id="@+id/surfaceview" android:layout_width="fill_parent" android:layout_height="0dp" android:layout_weight="1" /> <ProgressBar android:id="@+id/progressBar" style="?android:attr/progressBarStyleHorizontal" android:layout_width="match_parent" android:layout_height="2dp" /> </LinearLayout> |
以上所述就是本文的全部内容了，希望大家能够喜欢。
