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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(); } }} |
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<?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>有问题，欢迎交流与学习！ |
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原文地址：http://blog.csdn.net/u012374012/article/details/44222395
