Camera2视频录制工具类

Android通过Camera2录制视频，写了个工具类，需要时直接拿来用

import android.Manifest;
import android.annotation.SuppressLint;
import android.content.pm.PackageManager;
import android.graphics.SurfaceTexture;
import android.hardware.camera2.CameraAccessException;
import android.hardware.camera2.CameraCaptureSession;
import android.hardware.camera2.CameraDevice;
import android.hardware.camera2.CameraManager;
import android.hardware.camera2.CaptureFailure;
import android.hardware.camera2.CaptureRequest;
import android.hardware.camera2.CaptureResult;
import android.hardware.camera2.TotalCaptureResult;
import android.media.MediaRecorder;
import android.os.Handler;
import android.util.Log;
import android.util.Size;
import android.view.Surface;import androidx.annotation.NonNull;import java.io.IOException;
import java.util.ArrayList;
import java.util.List;public class RecordUtil {private static final String TAG = "RecordUtil";private MediaRecorder mMediaRecorder;private CameraManager cameraManager;private CameraDevice cameraDevice;private CameraCaptureSession mPreviewSession;private CaptureRequest.Builder mPreviewBuilder;private CameraCaptureSession.StateCallback mSessionStateCallback;private CameraCaptureSession.CaptureCallback mSessionCaptureCallback;private Handler mChildHandler;private SurfaceTexture surfaceTexture;private String mCameraId;private String fileName;private Size previewSize = new Size(1920, 1080);;public RecordUtil(CameraManager cameraManager, SurfaceTexture surfaceTexture, String mCameraId, Size previewSize) {this.cameraManager = cameraManager;this.surfaceTexture = surfaceTexture;this.mCameraId = mCameraId;this.previewSize = previewSize;initSessionCaptureCallback();initSessionStateCallback();}@SuppressLint("MissingPermission")public void initCamera(String fileName) {this.fileName = fileName;try {cameraManager.openCamera(mCameraId, new CameraDevice.StateCallback() {@Overridepublic void onOpened(@NonNull CameraDevice camera) {cameraDevice = camera;createBuild();}@Overridepublic void onDisconnected(@NonNull CameraDevice camera) {Log.i(TAG, "onDisconnected");}@Overridepublic void onError(@NonNull CameraDevice camera, int error) {Log.i(TAG, "onError = " + error);}}, null);} catch (CameraAccessException e) {e.printStackTrace();}}private void createBuild() {setUpMediaRecorder();try {mPreviewBuilder = cameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_RECORD);List<Surface> surfaces = new ArrayList<>();Surface previewSurface = new Surface(surfaceTexture);Surface recorderSurface = mMediaRecorder.getSurface();surfaces.add(recorderSurface);surfaces.add(previewSurface);mPreviewBuilder.addTarget(recorderSurface);mPreviewBuilder.addTarget(previewSurface);cameraDevice.createCaptureSession(surfaces, mSessionStateCallback, mChildHandler);mMediaRecorder.start();} catch (CameraAccessException e) {e.printStackTrace();}}private void setUpMediaRecorder() {mMediaRecorder = new MediaRecorder();mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.SURFACE);mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);mMediaRecorder.setOutputFile(fileName);mMediaRecorder.setVideoEncodingBitRate(10000000);mMediaRecorder.setVideoFrameRate(25);mMediaRecorder.setVideoSize(previewSize.getWidth(), previewSize.getHeight());mMediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);try {mMediaRecorder.prepare();} catch (IOException e) {e.printStackTrace();}}private void initSessionStateCallback() {mSessionStateCallback = new CameraCaptureSession.StateCallback() {@Overridepublic void onConfigured(@NonNull CameraCaptureSession session) {mPreviewSession = session;try {mPreviewSession.setRepeatingRequest(mPreviewBuilder.build(), mSessionCaptureCallback,mChildHandler);} catch (CameraAccessException e) {e.printStackTrace();}}@Overridepublic void onConfigureFailed(@NonNull CameraCaptureSession session) {}};}private void initSessionCaptureCallback() {mSessionCaptureCallback = new CameraCaptureSession.CaptureCallback() {@Overridepublic void onCaptureStarted(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request,long timestamp, long frameNumber) {super.onCaptureStarted(session, request, timestamp, frameNumber);}@Overridepublic void onCaptureProgressed(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request,@NonNull CaptureResult partialResult) {super.onCaptureProgressed(session, request, partialResult);}@Overridepublic void onCaptureCompleted(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request,@NonNull TotalCaptureResult result) {super.onCaptureCompleted(session, request, result);}@Overridepublic void onCaptureFailed(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request,@NonNull CaptureFailure failure) {super.onCaptureFailed(session, request, failure);}};}public void stopRecord() {if (mMediaRecorder != null) {mMediaRecorder.setOnInfoListener(null);mMediaRecorder.setPreviewDisplay(null);mMediaRecorder.setOnErrorListener(null);mMediaRecorder.reset();mMediaRecorder.release();mMediaRecorder = null;}if (mPreviewSession != null) {mPreviewSession.close();}if (cameraDevice != null) {cameraDevice.close();cameraDevice = null;}}
}

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Camera2视频录制工具类

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