Android录制视频,仿微信小视频录制(一)
2016-08-02 18:49
801 查看
Android录制视频,第一部分自定义控件
简述
公司有一个录制视频并上传的功能,录制视频具体使用类如下:硬件控制使用Camera,视频录制的格式音频等具体配置与录制使用MediaRecorder,预览使用SurfaceView。在网上找了一个项目,后来经过自己加工完善,可以比较稳定的使用。内容较多分为几个篇幅来说吧,第一篇先说一下封装的录制控件,第二篇有具体的使用,第三篇讲一下其他一些扩展延伸。具体实现
自定义了一个控件MovieRecorderView,封装了包括视频的录制、视频的预览、视频的保存、与录制进度监听等功能。具体可以参考代码,注释也是比较详细的。代码
控件代码部分 MovieRecorderView.java
import android.annotation.TargetApi; import android.app.Activity; 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.os.Build; import android.os.Environment; import android.util.AttributeSet; import android.util.Log; import android.view.LayoutInflater; import android.view.SurfaceHolder; import android.view.SurfaceHolder.Callback; import android.view.SurfaceView; import android.widget.LinearLayout; import java.io.File; import java.io.IOException; import java.util.Collections; import java.util.Comparator; import java.util.List; import java.util.Timer; import java.util.TimerTask; /** * 视频播放控件 * Created by Wood on 2016/4/6. */ public class MovieRecorderView extends LinearLayout implements OnErrorListener { private static final String LOG_TAG = "MovieRecorderView"; private Context context; private SurfaceView surfaceView; private SurfaceHolder surfaceHolder; //private ProgressBar progressBar; private MediaRecorder mediaRecorder; private Camera camera; private Timer timer;//计时器 private int mWidth;//视频录制分辨率宽度 private int mHeight;//视频录制分辨率高度 private boolean isOpenCamera;//是否一开始就打开摄像头 private int recordMaxTime;//最长拍摄时间 private int timeCount;//时间计数 private File recordFile = null;//视频文件 private long sizePicture = 0; public MovieRecorderView(Context context) { this(context, null); } public MovieRecorderView(Context context, AttributeSet attrs) { this(context, attrs, 0); } @TargetApi(Build.VERSION_CODES.HONEYCOMB) public MovieRecorderView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); this.context = context; TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.MovieRecorderView, defStyle, 0); mWidth = a.getInteger(R.styleable.MovieRecorderView_record_width, 640);//默认640 mHeight = a.getInteger(R.styleable.MovieRecorderView_record_height, 360);//默认360 isOpenCamera = a.getBoolean(R.styleable.MovieRecorderView_is_open_camera, true);//默认打开摄像头 recordMaxTime = a.getInteger(R.styleable.MovieRecorderView_record_max_time, 10);//默认最大拍摄时间为10s LayoutInflater.from(context).inflate(R.layout.movie_recorder_view, this); surfaceView = (SurfaceView) findViewById(R.id.surface_view); //TODO 需要用到进度条,打开此处,也可以自己定义自己需要的进度条,提供了拍摄进度的接口 //progressBar = (ProgressBar) findViewById(R.id.progress_bar); //progressBar.setMax(recordMaxTime);//设置进度条最大量 surfaceHolder = surfaceView.getHolder(); surfaceHolder.addCallback(new CustomCallBack()); surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); a.recycle(); } /** 4000 * SurfaceHolder回调 */ private class CustomCallBack implements Callback { @Override public void surfaceCreated(SurfaceHolder holder) { if (!isOpenCamera) return; try { initCamera(); } catch (IOException e) { 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 */ public void initCamera() throws IOException { if (camera != null) { freeCameraResource(); } try { if (checkCameraFacing(Camera.CameraInfo.CAMERA_FACING_FRONT)) { camera = Camera.open(Camera.CameraInfo.CAMERA_FACING_FRONT);//TODO 默认打开前置摄像头 } else if (checkCameraFacing(Camera.CameraInfo.CAMERA_FACING_BACK)) { camera = Camera.open(Camera.CameraInfo.CAMERA_FACING_BACK); } } catch (Exception e) { e.printStackTrace(); freeCameraResource(); ((Activity) context).finish(); } if (camera == null) return; setCameraParams(); camera.setDisplayOrientation(90); camera.setPreviewDisplay(surfaceHolder); camera.startPreview(); camera.unlock(); } /** * 检查是否有摄像头 * * @param facing 前置还是后置 * @return */ private boolean checkCameraFacing(int facing) { int cameraCount = Camera.getNumberOfCameras(); Camera.CameraInfo info = new Camera.CameraInfo(); for (int i = 0; i < cameraCount; i++) { Camera.getCameraInfo(i, info); if (facing == info.facing) { return true; } } return false; } /** * 设置摄像头为竖屏 */ private void setCameraParams() { if (camera != null) { Parameters params = camera.getParameters(); params.set("orientation", "portrait"); List<Camera.Size> supportedPictureSizes = params.getSupportedPictureSizes(); for (Camera.Size size : supportedPictureSizes) { sizePicture = (size.height * size.width) > sizePicture ? size.height * size.width : sizePicture; } // LogUtil.e(LOG_TAG,"手机支持的最大像素supportedPictureSizes===="+sizePicture); setPreviewSize(params); camera.setParameters(params); } } /** * 根据手机支持的视频分辨率,设置预览尺寸 * * @param params */ private void setPreviewSize(Parameters params) { if (camera == null) { return; } //获取手机支持的分辨率集合,并以宽度为基准降序排序 List<Camera.Size> previewSizes = params.getSupportedPreviewSizes(); Collections.sort(previewSizes, new Comparator<Camera.Size>() { @Override public int compare(Camera.Size lhs, Camera.Size rhs) { if (lhs.width > rhs.width) { return -1; } else if (lhs.width == rhs.width) { return 0; } else { return 1; } } }); float tmp = 0f; float minDiff = 100f; float ratio = 3.0f / 4.0f;//TODO 高宽比率3:4,且最接近屏幕宽度的分辨率,可以自己选择合适的想要的分辨率 Camera.Size best = null; for (Camera.Size s : previewSizes) { tmp = Math.abs(((float) s.height / (float) s.width) - ratio); Log.e(LOG_TAG, "setPreviewSize: width:" + s.width + "...height:" + s.height); // LogUtil.e(LOG_TAG,"tmp:" + tmp); if (tmp < minDiff) { minDiff = tmp; best = s; } } // LogUtil.e(LOG_TAG, "BestSize: width:" + best.width + "...height:" + best.height); // List<int[]> range = params.getSupportedPreviewFpsRange(); // int[] fps = range.get(0); // LogUtil.e(LOG_TAG,"min="+fps[0]+",max="+fps[1]); // params.setPreviewFpsRange(3,7); params.setPreviewSize(best.width, best.height);//预览比率 // params.setPictureSize(480, 720);//拍照保存比率 Log.e(LOG_TAG, "setPreviewSize BestSize: width:" + best.width + "...height:" + best.height); //TODO 大部分手机支持的预览尺寸和录制尺寸是一样的,也有特例,有些手机获取不到,那就把设置录制尺寸放到设置预览的方法里面 if (params.getSupportedVideoSizes() == null || params.getSupportedVideoSizes().size() == 0) { mWidth = best.width; mHeight = best.height; } else { setVideoSize(params); } } /** * 根据手机支持的视频分辨率,设置录制尺寸 * * @param params */ private void setVideoSize(Parameters params) { if (camera == null) { return; } //获取手机支持的分辨率集合,并以宽度为基准降序排序 List<Camera.Size> previewSizes = params.getSupportedVideoSizes(); Collections.sort(previewSizes, new Comparator<Camera.Size>() { @Override public int compare(Camera.Size lhs, Camera.Size rhs) { if (lhs.width > rhs.width) { return -1; } else if (lhs.width == rhs.width) { return 0; } else { return 1; } } }); float tmp = 0f; float minDiff = 100f; float ratio = 3.0f / 4.0f;//高宽比率3:4,且最接近屏幕宽度的分辨率 Camera.Size best = null; for (Camera.Size s : previewSizes) { tmp = Math.abs(((float) s.height / (float) s.width) - ratio); Log.e(LOG_TAG, "setVideoSize: width:" + s.width + "...height:" + s.height); if (tmp < minDiff) { minDiff = tmp; best = s; } } Log.e(LOG_TAG, "setVideoSize BestSize: width:" + best.width + "...height:" + best.height); //设置录制尺寸 mWidth = best.width; mHeight = best.height; } /** * 释放摄像头资源 */ private void freeCameraResource() { try { if (camera != null) { camera.setPreviewCallback(null); camera.stopPreview(); camera.lock(); camera.release(); camera = null; } } catch (Exception e) { e.printStackTrace(); } finally { camera = null; } } /** * 创建视频文件 */ private void createRecordDir() { File sampleDir = new File(Environment.getExternalStorageDirectory() + File.separator + "SampleVideo/video/"); if (!sampleDir.exists()) { sampleDir.mkdirs(); } try { //TODO 文件名用的时间戳,可根据需要自己设置,格式也可以选择3gp,在初始化设置里也需要修改 recordFile = new File(sampleDir, System.currentTimeMillis() + ".mp4"); // recordFile = new File(sampleDir, System.currentTimeMillis() + ".mp4"); // File.createTempFile(AccountInfo.userId, ".mp4", sampleDir); // LogUtil.e(LOG_TAG, recordFile.getAbsolutePath()); } catch (Exception e) { e.printStackTrace(); } } /** * 录制视频初始化 */ private void initRecord() throws Exception { mediaRecorder = new MediaRecorder(); mediaRecorder.reset(); if (camera != null) mediaRecorder.setCamera(camera); mediaRecorder.setOnErrorListener(this); mediaRecorder.setPreviewDisplay(surfaceHolder.getSurface()); mediaRecorder.setVideoSource(VideoSource.CAMERA);//视频源 mediaRecorder.setAudioSource(AudioSource.MIC);//音频源 mediaRecorder.setOutputFormat(OutputFormat.MPEG_4);//TODO 视频输出格式 也可设为3gp等其他格式 mediaRecorder.setAudioEncoder(AudioEncoder.AMR_NB);//音频格式 mediaRecorder.setVideoSize(mWidth, mHeight);//设置分辨率 // mediaRecorder.setVideoFrameRate(25);//TODO 设置每秒帧数 这个设置有可能会出问题,有的手机不支持这种帧率就会录制失败,这里使用默认的帧率,当然视频的大小肯定会受影响 // LogUtil.e(LOG_TAG,"手机支持的最大像素supportedPictureSizes===="+sizePicture); if (sizePicture < 3000000) {//这里设置可以调整清晰度 mediaRecorder.setVideoEncodingBitRate(3 * 1024 * 512); } else if (sizePicture <= 5000000) { mediaRecorder.setVideoEncodingBitRate(2 * 1024 * 512); } else { mediaRecorder.setVideoEncodingBitRate(1 * 1024 * 512); } mediaRecorder.setOrientationHint(270);//输出旋转90度,保持竖屏录制 mediaRecorder.setVideoEncoder(VideoEncoder.H264);//视频录制格式 //mediaRecorder.setMaxDuration(Constant.MAXVEDIOTIME * 1000); mediaRecorder.setOutputFile(recordFile.getAbsolutePath()); mediaRecorder.prepare(); mediaRecorder.start(); } /** * 开始录制视频 * * @param onRecordFinishListener 达到指定时间之后回调接口 */ public void record(final OnRecordFinishListener onRecordFinishListener) { this.onRecordFinishListener = onRecordFinishListener; createRecordDir(); try { //如果未打开摄像头,则打开 if (!isOpenCamera) initCamera(); initRecord(); timeCount = 0;//时间计数器重新赋值 timer = new Timer(); timer.schedule(new TimerTask() { @Override public void run() { timeCount++; //progressBar.setProgress(timeCount);//设置进度条 if (onRecordProgressListener != null) { onRecordProgressListener.onProgressChanged(recordMaxTime, timeCount); } //达到指定时间,停止拍摄 if (timeCount == recordMaxTime) { stop(); if (MovieRecorderView.this.onRecordFinishListener != null) MovieRecorderView.this.onRecordFinishListener.onRecordFinish(); } } }, 0, 1000); } catch (Exception e) { e.printStackTrace(); if (mediaRecorder != null) { mediaRecorder.release(); } freeCameraResource(); } } /** * 停止拍摄 */ public void stop() { stopRecord(); releaseRecord(); freeCameraResource(); } /** * 停止录制 */ public void stopRecord() { //progressBar.setProgress(0); if (timer != null) timer.cancel(); if (mediaRecorder != null) { mediaRecorder.setOnErrorListener(null);//设置后防止崩溃 mediaRecorder.setPreviewDisplay(null); try { mediaRecorder.stop(); } catch (Exception e) { e.printStackTrace(); } } } /** * 释放资源 */ private void releaseRecord() { if (mediaRecorder != null) { mediaRecorder.setOnErrorListener(null); try { mediaRecorder.release(); } catch (Exception e) { e.printStackTrace(); } } mediaRecorder = null; } /** * 获取当前录像时间 * * @return timeCount */ public int getTimeCount() { return timeCount; } /** * 设置最大录像时间 * * @param recordMaxTime */ public void setRecordMaxTime(int recordMaxTime) { this.recordMaxTime = recordMaxTime; } /** * 返回录像文件 * * @return recordFile */ public File getRecordFile() { return recordFile; } /** * 录制完成监听 */ private OnRecordFinishListener onRecordFinishListener; /** * 录制完成接口 */ public interface OnRecordFinishListener { void onRecordFinish(); } /** * 录制进度监听 */ private OnRecordProgressListener onRecordProgressListener; /** * 设置录制进度监听 * * @param onRecordProgressListener */ public void setOnRecordProgressListener(OnRecordProgressListener onRecordProgressListener) { this.onRecordProgressListener = onRecordProgressListener; } /** * 录制进度接口 */ public interface OnRecordProgressListener { /** * 进度变化 * * @param maxTime 最大时间,单位秒 * @param currentTime 当前进度 */ void onProgressChanged(int maxTime, int currentTime); } @Override public void onError(MediaRecorder mr, int what, int extra) { try { if (mr != null) mr.reset(); } catch (Exception e) { e.printStackTrace(); } } }
xml布局部分 movie_recorder_view.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@android:color/background_dark" android:orientation="vertical"> <SurfaceView android:id="@+id/surface_view" android:layout_width="fill_parent" android:layout_height="0dp" android:layout_weight="1" /> <!--下方提供进度条,已经隐藏,需要可以打开。Used to display progress,hidden by default --> <ProgressBar android:id="@+id/progress_bar" style="?android:attr/progressBarStyleHorizontal" android:layout_width="match_parent" android:layout_height="2dp" android:visibility="gone" /> </LinearLayout>
其他资源链接
Android录制视频,仿微信小视频录制(二)Android录制视频,仿微信小视频录制(三)
项目Demo地址
相关文章推荐
- Android 仿秒拍,微信录制短视频
- Android仿微信小视频录制功能
- Android仿微信小视频录制功能
- Android自定义view之仿微信录制视频按钮
- Android仿微信录制小视频
- Android录制微信小视频
- Android录制小视频(仿微信小视频)
- Android仿微信录制短视频
- android仿微信录制短视频并播放
- Android录制视频,仿微信小视频录制(二)
- Android 微信小视频录制功能实现详细介绍
- Android之---高仿微信录制小视频(拍摄和查看)
- Android 自定义View---仿微信视频录制按钮 长按录制 点击拍照
- Android 微信小视频录制功能实现
- Android 仿微信小视频录制
- Android仿微信小视频录制功能(二)
- Android实现微信录制小视频的计时动画
- android仿微信录制短视频,拍照,自动聚焦,手动聚焦,滑动缩放功能(Camera+TextureView+rxjava实现)
- android仿微信录制短视频并播放视频
- Android开发之视频录制