/************************************************************
* * EaseMob CONFIDENTIAL
* __________________
* Copyright (C) 2013-2014 EaseMob Technologies. All rights reserved.
*
* NOTICE: All information contained herein is, and remains
* the property of EaseMob Technologies.
* Dissemination of this information or reproduction of this material
* is strictly forbidden unless prior written permission is obtained
* from EaseMob Technologies.
*/
package com.fanxin.app.activity;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Collections;
import java.util.List;
import android.annotation.SuppressLint;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.graphics.Bitmap;
import android.graphics.PixelFormat;
import android.hardware.Camera;
import android.hardware.Camera.CameraInfo;
import android.hardware.Camera.Parameters;
import android.hardware.Camera.Size;
import android.media.MediaRecorder;
import android.media.MediaRecorder.OnErrorListener;
import android.media.MediaRecorder.OnInfoListener;
import android.media.MediaScannerConnection;
import android.media.MediaScannerConnection.MediaScannerConnectionClient;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.os.PowerManager;
import android.os.SystemClock;
import android.text.TextUtils;
import android.view.SurfaceHolder;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.Chronometer;
import android.widget.ImageView;
import android.widget.Toast;
import android.widget.VideoView;
import com.fanxin.app.R;
import com.fanxin.app.video.util.Utils;
import com.easemob.util.EMLog;
import com.easemob.util.PathUtil;
public class RecorderVideoActivity extends BaseActivity implements
OnClickListener, SurfaceHolder.Callback, OnErrorListener,
OnInfoListener {
private final static String CLASS_LABEL = "RecordActivity";
private PowerManager.WakeLock mWakeLock;
private ImageView btnStart;// 开始录制按钮
private ImageView btnStop;// 停止录制按钮
private MediaRecorder mediaRecorder;// 录制视频的类
private VideoView mVideoView;// 显示视频的控件
String localPath = "";// 录制的视频路径
private Camera mCamera;
// 预览的宽高
private int previewWidth = 480;
private int previewHeight = 480;
private Chronometer chronometer;
private int frontCamera = 0;// 0是后置摄像头，1是前置摄像头
private Button btn_switch;
Parameters cameraParameters = null;
private SurfaceHolder mSurfaceHolder;
int defaultVideoFrameRate = -1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);// 去掉标题栏
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);// 设置全屏
// 选择支持半透明模式，在有surfaceview的activity中使用
getWindow().setFormat(PixelFormat.TRANSLUCENT);
setContentView(R.layout.recorder_activity);
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
mWakeLock = pm.newWakeLock(PowerManager.SCREEN_BRIGHT_WAKE_LOCK,
CLASS_LABEL);
mWakeLock.acquire();
initViews();
}
private void initViews() {
btn_switch = (Button) findViewById(R.id.switch_btn);
btn_switch.setOnClickListener(this);
btn_switch.setVisibility(View.VISIBLE);
mVideoView = (VideoView) findViewById(R.id.mVideoView);
btnStart = (ImageView) findViewById(R.id.recorder_start);
btnStop = (ImageView) findViewById(R.id.recorder_stop);
btnStart.setOnClickListener(this);
btnStop.setOnClickListener(this);
mSurfaceHolder = mVideoView.getHolder();
mSurfaceHolder.addCallback(this);
mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
chronometer = (Chronometer) findViewById(R.id.chronometer);
}
public void back(View view) {
releaseRecorder();
releaseCamera();
finish();
}
@Override
protected void onResume() {
super.onResume();
if (mWakeLock == null) {
// 获取唤醒锁,保持屏幕常亮
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
mWakeLock = pm.newWakeLock(PowerManager.SCREEN_BRIGHT_WAKE_LOCK,
CLASS_LABEL);
mWakeLock.acquire();
}
if (!initCamera()) {
showFailDialog();
}
}
@SuppressLint("NewApi")
private boolean initCamera() {
try {
if (frontCamera == 0) {
mCamera = Camera.open(CameraInfo.CAMERA_FACING_BACK);
} else {
mCamera = Camera.open(CameraInfo.CAMERA_FACING_FRONT);
}
Camera.Parameters camParams = mCamera.getParameters();
mCamera.lock();
mSurfaceHolder = mVideoView.getHolder();
mSurfaceHolder.addCallback(this);
mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
mCamera.setDisplayOrientation(90);
} catch (RuntimeException ex) {
EMLog.e("video", "init Camera fail " + ex.getMessage());
return false;
}
return true;
}
private void handleSurfaceChanged() {
if (mCamera == null) {
finish();
return;
}
boolean hasSupportRate = false;
List<Integer> supportedPreviewFrameRates = mCamera.getParameters()
.getSupportedPreviewFrameRates();
if (supportedPreviewFrameRates != null
&& supportedPreviewFrameRates.size() > 0) {
Collections.sort(supportedPreviewFrameRates);
for (int i = 0; i < supportedPreviewFrameRates.size(); i++) {
int supportRate = supportedPreviewFrameRates.get(i);
if (supportRate == 15) {
hasSupportRate = true;
}
}
if (hasSupportRate) {
defaultVideoFrameRate = 15;
} else {
defaultVideoFrameRate = supportedPreviewFrameRates.get(0);
}
}
// 获取摄像头的所有支持的分辨率
List<Camera.Size> resolutionList = Utils.getResolutionList(mCamera);
if (resolutionList != null && resolutionList.size() > 0) {
Collections.sort(resolutionList, new Utils.ResolutionComparator());
Camera.Size previewSize = null;
boolean hasSize = false;
// 如果摄像头支持640*480，那么强制设为640*480
for (int i = 0; i < resolutionList.size(); i++) {
Size size = resolutionList.get(i);
if (size != null && size.width == 640 && size.height == 480) {
previewSize = size;
previewWidth = previewSize.width;
previewHeight = previewSize.height;
hasSize = true;
break;
}
}
// 如果不支持设为中间的那个
if (!hasSize) {
int mediumResolution = resolutionList.size() / 2;
if (mediumResolution >= resolutionList.size())
mediumResolution = resolutionList.size() - 1;
previewSize = resolutionList.get(mediumResolution);
previewWidth = previewSize.width;
previewHeight = previewSize.height;
}
}
}
@Override
protected void onPause() {
super.onPause();
if (mWakeLock != null) {
mWakeLock.release();
mWakeLock = null;
}
}
@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.switch_btn:
switchCamera();
break;
case R.id.recorder_start:
// start recording
startRecording();
Toast.makeText(this, "录像开始", Toast.LENGTH_SHORT).show();
btn_switch.setVisibility(View.INVISIBLE);
btnStart.setVisibility(View.INVISIBLE);
btnStop.setVisibility(View.VISIBLE);
// 重置其他
chronometer.setBase(SystemClock.elapsedRealtime());
chronometer.start();
break;
case R.id.recorder_stop:
// 停止拍摄
stopRecording();
btn_switch.setVisibility(View.VISIBLE);
chronometer.stop();
btnStart.setVisibility(View.VISIBLE);
btnStop.setVisibility(View.INVISIBLE);
new AlertDialog.Builder(this)
.setMessage("是否发送？")
.setPositiveButton(R.string.ok,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
dialog.dismiss();
sendVideo(null);
}
})
.setNegativeButton(R.string.cancel,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
dialog.dismiss();
if (mCamera == null) {
initCamera();
}
try {
mCamera.setPreviewDisplay(mSurfaceHolder);
mCamera.startPreview();
handleSurfaceChanged();
} catch (IOException e1) {
EMLog.e("video", "start preview fail "
+ e1.getMessage());
}
}
}).setCancelable(false).show();
break;
default:
break;
}
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width,
int height) {
// 将holder，这个holder为开始在oncreat里面取得的holder，将它赋给surfaceHolder
mSurfaceHolder = holder;
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
if (mCamera == null)
initCamera();
try {
mCamera.setPreviewDisplay(mSurfaceHolder);
mCamera.startPreview();
handleSurfaceChanged();
} catch (IOException e1) {
EMLog.e("video", "start preview fail " + e1.getMessage());
}
}
@Override
public void surfaceDestroyed(SurfaceHolder arg0) {
EMLog.v("video", "surfaceDestroyed");
// surfaceDestroyed的时候同时对象设置为null
releaseCamera();
}
public void startRecording() {
if (mediaRecorder == null)
initRecorder();
mediaRecorder.setOnInfoListener(this);
mediaRecorder.setOnErrorListener(this);
mediaRecorder.start();
}
@SuppressLint("NewApi")
private void initRecorder() {
if (mCamera == null) {
initCamera();
}
mVideoView.setVisibility(View.VISIBLE);
// TODO init button
mCamera.stopPreview();
mediaRecorder = new MediaRecorder();
mCamera.unlock();
mediaRecorder.setCamera(mCamera);
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
// 设置录制视频源为Camera（相机）
mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
if (frontCamera == 1) {
mediaRecorder.setOrientationHint(270);
} else {
mediaRecorder.setOrientationHint(90);
}
// 设置录制完成后视频的封装格式THREE_GPP为3gp.MPEG_4为mp4
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
// 设置录制的视频编码h263 h264
mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);
// 设置视频录制的分辨率。必须放在设置编码和格式的后面，否则报错
mediaRecorder.setVideoSize(previewWidth, previewHeight);
// 设置视频的比特率
mediaRecorder.setVideoEncodingBitRate(384 * 1024);
// // 设置录制的视频帧率。必须放在设置编码和格式的后面，否则报错
if (defaultVideoFrameRate != -1) {
mediaRecorder.setVideoFrameRate(defaultVideoFrameRate);
}
// 设置视频文件输出的路径
localPath = PathUtil.getInstance().getVideoPath() + "/"
+ System.currentTimeMillis() + ".mp4";
mediaRecorder.setOutputFile(localPath);
mediaRecorder.setMaxDuration(30000);
mediaRecorder.setPreviewDisplay(mSurfaceHolder.getSurface());
try {
mediaRecorder.prepare();
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
public void stopRecording() {
if (mediaRecorder != null) {
mediaRecorder.setOnErrorListener(null);
mediaRecorder.setOnInfoListener(null);
try {
mediaRecorder.stop();
} catch (IllegalStateException e) {
EMLog.e("video", "stopRecording error:" + e.getMessage());
}
}
releaseRecorder();
if (mCamera != null) {
mCamera.stopPreview();
releaseCamera();
}
}
private void releaseRecorder() {
if (mediaRecorder != null) {
mediaRecorder.release();
mediaRecorder = null;
}
}
protected void releaseCamera() {
try {
if (mCamera != null) {
mCamera.stopPreview();
mCamera.release();
mCamera = null;
}
} catch (Exception e) {
}
}
@SuppressLint("NewApi")
public void switchCamera() {
if (mCamera == null) {
return;
}
if (Camera.getNumberOfCameras() >= 2) {
btn_switch.setEnabled(false);
if (mCamera != null) {
mCamera.stopPreview();
mCamera.release();
mCamera = null;
}
switch (frontCamera) {
case 0:
mCamera = Camera.open(CameraInfo.CAMERA_FACING_FRONT);
frontCamera = 1;
break;
case 1:
mCamera = Camera.open(CameraInfo.CAMERA_FACING_BACK);
frontCamera = 0;
break;
}
try {
mCamera.lock();
mCamera.setDisplayOrientation(90);
mCamera.setPreviewDisplay(mVideoView.getHolder());
mCamera.startPreview();
} catch (IOException e) {
mCamera.release();
mCamera = null;
}
btn_switch.setEnabled(true);
}
}
MediaScannerConnection msc = null;
public void sendVideo(View view) {
if (TextUtils.isEmpty(localPath)) {
EMLog.e("Recorder", "recorder fail please try again!");
return;
}
msc = new MediaScannerConnection(this,
new MediaScannerConnectionClient() {
@Override
public void onScanCompleted(String path, Uri uri) {
System.out.println("scanner completed");
msc.disconnect();
setResult(RESULT_OK, getIntent().putExtra("uri", uri));
finish();
}
@Override
public void onMediaScannerConnected() {
msc.scanFile(localPath, "video/*");
}
});
msc.connect();
}
@Override
public void onInfo(MediaRecorder mr, int what, int extra) {
EMLog.v("video", "onInfo");
if (what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_DURATION_REACHED) {
EMLog.v("video", "max duration reached");
stopRecording();
btn_switch.setVisibility(View.VISIBLE);
chronometer.stop();
btnStart.setVisibility(View.VISIBLE);
btnStop.setVisibility(View.INVISIBLE);
chronometer.stop();
if (localPath == null) {
return;
}
new AlertDialog.Builder(this)
.setMessage("是否发送？")
.setPositiveButton(R.string.ok,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0,
int arg1) {
arg0.dismiss();
sendVideo(null);
}
}).setNegativeButton(R.string.cancel, null)
.setCancelable(false).show();
}
}
@Override
public void onError(MediaRecorder mr, int what, int extra) {
EMLog.e("video", "recording onError:");
stopRecording();
Toast.makeText(this,
"Recording error has occurred. Stopping the recording",
Toast.LENGTH_SHORT).show();
}
public void saveBitmapFile(Bitmap bitmap) {
File file = new File(Environment.getExternalStorageDirectory(), "a.jpg");
try {
BufferedOutputStream bos = new BufferedOutputStream(
new FileOutputStream(file));
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, bos);
bos.flush();
bos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
@Override
protected void onDestroy() {
super.onDestroy();
releaseCamera();
if (mWakeLock != null) {
mWakeLock.release();
mWakeLock = null;
}
}
@Override
public void onBackPressed() {
back(null);
}
private void showFailDialog() {
new AlertDialog.Builder(this)
.setTitle("提示")
.setMessage("打开设备失败！")
.setPositiveButton(R.string.ok,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
finish();
}
}).setCancelable(false).show();
}
}