使用MediaRecorder和MediaPlayer实现视频的录制与播放，视频压缩没有实现；但可参考我的另外一篇博客使用FFMpeg实现视频录制与压缩
1.activity_main.xml：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<SurfaceView
android:id="@+id/surfaceview"
android:layout_width="match_parent"
android:layout_marginBottom="60dp"
android:layout_height="match_parent" />
<ImageView
android:id="@+id/imageview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="60dp"
android:scaleType="centerCrop"
android:src="@mipmap/ic_launcher_round"/>
<LinearLayout
android:layout_alignParentBottom="true"
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="horizontal">
<Button
android:id="@+id/btnStartRecord"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="开始录制"/>
<View
android:layout_width="2dp"
android:layout_height="match_parent"
android:background="#4a7ad9"/>
<Button
android:id="@+id/btnPlayVideo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="播放录像"/>
<Button
android:id="@+id/btnStopPlayVideo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="停止播放"/>
<TextView
android:id="@+id/tv_show_time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:layout_margin="5dp"
android:text="0"/>
<View
android:layout_width="2dp"
android:layout_height="match_parent"
android:background="#4a7ad9"/>
<Button
android:id="@+id/btnCompressVideo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="压缩视频"/>
</LinearLayout>
</RelativeLayout>2.MainActivity
import android.Manifest;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.PixelFormat;
import android.hardware.Camera;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaRecorder;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.provider.Settings;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import java.io.File;
import java.text.SimpleDateFormat;
import java.util.Date;
import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.OnClick;
public class MainActivity extends AppCompatActivity implements SurfaceHolder.Callback {
@BindView(R.id.surfaceview)
SurfaceView surfaceview;
@BindView(R.id.imageview)
ImageView imageview;
@BindView(R.id.btnStartRecord)
Button btnStartRecord;
@BindView(R.id.btnPlayVideo)
Button btnPlayVideo;
@BindView(R.id.btnStopPlayVideo)
Button btnStopPlayVideo;
@BindView(R.id.btnCompressVideo)
Button btnCompressVideo;
@BindView(R.id.tv_show_time)
TextView tvShowTime;
private static String[] PERMISSIONS_STORAGE = {
Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.WRITE_EXTERNAL_STORAGE,
Manifest.permission.CAMERA,
Manifest.permission.RECORD_AUDIO,
Manifest.permission.MOUNT_UNMOUNT_FILESYSTEMS};
private static final int REQUEST_EXTERNAL_STORAGE = 21;
private final static int RESULT_PERMISSION = 1001;
private final static int RESULT_SUCCESS = 3;
private File recordDir;
private File compressDir;
private boolean isPlaying = false;//是否正在播放录像
private boolean isRecording = false;//是否正在录像
private MediaPlayer mediaPlayer;//多媒体播放器
private int videoTime = 0;
private MediaRecorder mRecorder;//多媒体录音
private Camera mCamera;//相机
private String videoFilePath;//视频保存路径
private SurfaceHolder mSurfaceHolder;
private Handler handler = new Handler();
private boolean isHandlerRun = false;
private Runnable runnable = new Runnable() {
@Override
public void run() {
if (isHandlerRun) {
videoTime++;
tvShowTime.setText(videoTime + "");
handler.postDelayed(this, 1000);//休眠1秒
}
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);// 设置全屏
getWindow().setFormat(PixelFormat.TRANSLUCENT);
setContentView(R.layout.activity_main);
ButterKnife.bind(this);
SurfaceHolder holder = surfaceview.getHolder();
holder.addCallback(this);
holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);//缓冲区
verifyStoragePermissions();
recordDir = new File(getVideoRecordDir());
compressDir = new File(getVideoCompressDir());
}
@OnClick({R.id.btnStartRecord, R.id.btnPlayVideo, R.id.btnStopPlayVideo, R.id.btnCompressVideo})
public void onViewClicked(View view) {
switch (view.getId()) {
case R.id.btnStartRecord:
startStopRecord();
break;
case R.id.btnPlayVideo:
playVideo();
break;
case R.id.btnStopPlayVideo:
if (mediaPlayer != null) {
isHandlerRun = false;
handler.removeCallbacks(runnable);
tvShowTime.setText("0");
isPlaying = false;
mediaPlayer.stop();//停止媒体播放器
mediaPlayer.reset();//重置媒体播放器
mediaPlayer.release();//释放资源
mediaPlayer = null;
imageview.setVisibility(View.VISIBLE);
btnPlayVideo.setText("播放");
videoTime = 0;
}
break;
case R.id.btnCompressVideo:
String savePath = compressDir + "/" + getDate() + ".mp4";
compressVideo(videoFilePath,savePath);
break;
}
}
@Override
protected void onResume() {
super.onResume();
/* if (!mStartedFlg) {
mImageView.setVisibility(View.GONE);
}*/
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
mSurfaceHolder = holder;
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
mSurfaceHolder = holder;
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
surfaceview = null;
mSurfaceHolder = null;
handler.removeCallbacks(runnable);
if (mRecorder != null) {
mRecorder.release();
mRecorder = null;
}
if (mCamera != null) {
mCamera.release();
mCamera.release();
mCamera = null;
}
if (mediaPlayer != null) {
mediaPlayer.release();
mediaPlayer = null;
}
}
/**
* 开始/结束录制
*/
private void startStopRecord() {
if (isPlaying) {
if (mediaPlayer != null) {
isPlaying = false;
mediaPlayer.stop();//停止媒体播放器
mediaPlayer.reset();//重置媒体播放器
mediaPlayer.release();//释放资源
mediaPlayer = null;
isHandlerRun = false;
handler.removeCallbacks(runnable);
tvShowTime.setText("0");
btnPlayVideo.setText("播放");
videoTime = 0;
}
}
//如果正在录像
if (!isRecording) {
isHandlerRun = true;
videoTime = 0;
handler.postDelayed(runnable, 1000);
imageview.setVisibility(View.GONE);
if (mRecorder == null) {
mRecorder = new MediaRecorder();
}
mCamera = Camera.open(Camera.CameraInfo.CAMERA_FACING_BACK);
if (mCamera != null) {
mCamera.setDisplayOrientation(90);
mCamera.unlock();
mRecorder.setCamera(mCamera);
}
try {
// 这两项需要放在setOutputFormat之前,设置音频和视频的来源
mRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);//摄录像机
mRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);//相机
// Set output file format
mRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);//输出格式 mp4
// 这两项需要放在setOutputFormat之后 设置编码器
mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);//音频编码格式
mRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.MPEG_4_SP);//视频编码格式
mRecorder.setVideoSize(640, 480);//视频分辨率
mRecorder.setVideoFrameRate(30);//帧速率
mRecorder.setVideoEncodingBitRate(3 * 1024 * 1024);//视频清晰度
mRecorder.setOrientationHint(90);//输出视频播放的方向提示
//设置记录会话的最大持续时间（毫秒）
mRecorder.setMaxDuration(30 * 1000);
mRecorder.setPreviewDisplay(mSurfaceHolder.getSurface());//预览显示的控件
if (recordDir != null) {
videoFilePath = recordDir + "/" + getDate() + ".mp4";
mRecorder.setOutputFile(videoFilePath);//输出文件路径
mRecorder.prepare();//准备
mRecorder.start();//开始
isRecording = true;//录像开始
btnStartRecord.setText("结束录制");
}
} catch (Exception e) {
e.printStackTrace();
}
}
//停止
else {
if (isRecording) {
handler.removeCallbacks(runnable);
isHandlerRun = false;
mRecorder.stop();//停止
mRecorder.reset();//重置，设置为空闲状态
mRecorder.release();//释放
mRecorder = null;
btnStartRecord.setText("开始录制");
videoTime = 0;
//释放相机
if (mCamera != null) {
mCamera.release();
mCamera = null;
}
}
isRecording = false;
}
}
/**
* 播放录像、暂停
*/
private void playVideo() {
if (isRecording) {
Toast.makeText(MainActivity.this, "正在录制，请结束录制再播放",
Toast.LENGTH_SHORT).show();
} else {
if (!isPlaying) {
if (mediaPlayer == null) {
mediaPlayer = new MediaPlayer();
}
mediaPlayer.reset();
if (videoFilePath == null) {
Toast.makeText(MainActivity.this, "暂无视频资源", Toast.LENGTH_SHORT).show();
} else {
imageview.setVisibility(View.GONE);
Uri uri = Uri.parse(videoFilePath);
mediaPlayer = MediaPlayer.create(MainActivity.this, uri);
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mediaPlayer.setDisplay(mSurfaceHolder);//设置显示的控件
try {
mediaPlayer.prepare();
} catch (Exception e) {
e.printStackTrace();
}
/*int currentPosition = mediaPlayer.getCurrentPosition();
int duration = mediaPlayer.getDuration();*/
videoTime = 0;
isHandlerRun = true;
handler.postDelayed(runnable, 1000);
isPlaying = true;
mediaPlayer.start();
btnPlayVideo.setText("暂停");
//监听播放器是否播放结束
mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mp) {
imageview.setVisibility(View.VISIBLE);
btnPlayVideo.setText("播放");
isHandlerRun = false;
isPlaying = false;
handler.removeCallbacks(runnable);
Toast.makeText(MainActivity.this, "播放完毕",
Toast.LENGTH_SHORT).show();
}
});
}
} else {
if (mediaPlayer.isPlaying()) {
mediaPlayer.pause();
isHandlerRun = false;
btnPlayVideo.setText("继续播放");
} else {
mediaPlayer.start();
isHandlerRun = true;
btnPlayVideo.setText("暂停");
}
}
}
}
/**
* 获取系统时间-视频保存的时间
*
* @return
*/
public static String getDate() {
// Calendar mCalendar = Calendar.getInstance();
// int year = mCalendar.get(Calendar.YEAR);
// int month = mCalendar.get(Calendar.MONTH);
// int day = mCalendar.get(Calendar.DATE);
// int hour = mCalendar.get(Calendar.HOUR);
// int minute = mCalendar.get(Calendar.MINUTE);
// int second = mCalendar.get(Calendar.SECOND);
// String date = "" + year + (month + 1) + day + hour + minute + second;
SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMddHHmmss");
Date curDate = new Date(System.currentTimeMillis());
String date = formatter.format(curDate);
return date;
}
/**
* 获取SD卡路径
*
* @return
*/
public String getSDPath() {
File sdDir = null;
// 判断sd卡是否存在
boolean sdCardExist = Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED);
if (sdCardExist) {
sdDir = Environment.getExternalStorageDirectory();//获取根目录
return sdDir.toString();
}
return null;
}
public String getVideoRecordDir(){
String dirPath = getSDPath();
dirPath += "/" + "videorecordcompress";
File file = new File(dirPath);
if(!file.exists()){
file.mkdir();
}
dirPath +="/"+"videorecord";
file = new File(dirPath);
if(!file.exists()){
file.mkdir();
}
return dirPath;
}
public String getVideoCompressDir(){
String dirPath = getSDPath();
dirPath += "/" + "videorecordcompress";
File file = new File(dirPath);
if(!file.exists()){
file.mkdir();
}
dirPath +="/"+"videocompress";
file = new File(dirPath);
if(!file.exists()){
file.mkdir();
}
return dirPath;
}
/**
* 压缩视频
*/
private void compressVideo(final String filePath, final String savePath) {
final String imagePath = recordDir + "/image.png";
}
/**
* 请求权限
*/
public void verifyStoragePermissions() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
boolean isGranted = true;
for (int i = 0; i < PERMISSIONS_STORAGE.length; i++) {
int j = ContextCompat.checkSelfPermission(MainActivity.this, PERMISSIONS_STORAGE[i]);
if (j != PackageManager.PERMISSION_GRANTED) {
isGranted = false;
break;
}
}
if (!isGranted) {
//权限还没有授予，进行申请权限
startRequestPermission();
} else {
//权限授予
}
} else {
}
}
/**
* 开始提交请求权限
*/
private void startRequestPermission() {
ActivityCompat.requestPermissions(MainActivity.this, PERMISSIONS_STORAGE, REQUEST_EXTERNAL_STORAGE);
}
/**
* 用户权限 申请 的回调方法
*
* @param requestCode
* @param permissions
* @param grantResults
*/
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (requestCode == RESULT_SUCCESS) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (grantResults.length != 0) {
if (grantResults[0] != PackageManager.PERMISSION_GRANTED) {
// 判断用户是否 点击了不再提醒。(检测该权限是否还可以申请)
boolean b = shouldShowRequestPermissionRationale(permissions[0]);
if (!b) {
// 用户还是想用我的 APP 的
// 提示用户去应用设置界面手动开启权限
showDialogTipUserGoToAppSettting();
} else {
// finish();
}
} else {
// Picker.from(ActEditAgencyInfo.this).count(1).enableCamera(true).setEngine(new GlideEngine()).forResult(RESULT_LICENSE);
// Toast.makeText(this, "权限获取成功", Toast.LENGTH_SHORT).show();
}
}
}
}
}
/**
* 提示用户去应用设置界面手动开启权限
*/
private void showDialogTipUserGoToAppSettting() {
AlertDialog dialog = new AlertDialog.Builder(MainActivity.this)
.setTitle("权限不可用")
.setMessage("请在-设置-应用管理中，允许使用存储权限")
.setPositiveButton("立即开启", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// 跳转到应用设置界面
goToAppSetting();
}
})
.setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
}).setCancelable(false).show();
}
/**
* 跳转到当前应用的设置界面
*/
private void goToAppSetting() {
Intent intent = new Intent();
intent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
Uri uri = Uri.fromParts("package", getPackageName(), null);
intent.setData(uri);
startActivityForResult(intent, RESULT_PERMISSION);
}
}
3.AndroidManifest.xml
<uses-feature android:name="android.hardware.camera"/>
<uses-feature android:name="android.hardware.camera.autofocus"/>
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<!-- 在SDCard中创建与删除文件的权限 -->
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
<!-- 往SDCard写入数据的权限 -->
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<!-- 在SDCard读取数据的权限 -->
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>