前言
项目中有个需求是在边录制视频的时候实时分析视频中的人脸情况，在camera1中预览时有个回调PreviewCallback的onPreviewFrame方法中能获取每一帧的数据，但是一旦开始录制视频，就不会走onPreviewFrame方法。查阅资料看到很多人说使用camera2能实现上述需求，但是也没找到现成的，所以自己琢磨了一番之后总算是实现了，特此记录。
new Camera.PreviewCallback() {
@Override
public void onPreviewFrame(byte[] data, Camera camera)
{
//TODO对帧数据进行处理
}
}
正文
话不多说，进入正题，实现上述需求主要就是使用ImageReader对象
mImageReader = ImageReader.newInstance(mPreviewSize.getWidth(), mPreviewSize.getHeight(),
ImageFormat.YUV_420_888, 2);
创建ImageReader对像
ImageReader ir = ImageReader.newInstance(int width, int height, int format, int maxImages);
参数：
width:默认图像的宽度像素
height:默认图像的高度像素
format:图像的格式
maxImages:用户想要读图像的最大数量
ImageReader类的主要操作:
- getSurface() //得到一个表面,可用于生产这个ImageReader图像
- acquireLatestImage() //从ImageReader的队列获得最新的图像,放弃旧的图像。
- acquireNextImage() //从ImageReader的队列获取下一个图像
- getMaxImages() //最大数量的图像
- getWidth() //每个图像的宽度,以像素为单位。
- getHeight() //每个图像的高度,以像素为单位。
- getImageFormat() //图像格式。
- close() //释放与此ImageReader相关的所有资源。用完记得关
设置监听
mImageReader.setOnImageAvailableListener(
new OnImageAvailableListenerImpl(), mBackgroundHandler);
我这里使用的是usb单目摄像头，所以图像格式我使用的是ImageFormat.YUV_420_888，而且我最后需要得到nv21来识别图像中的人脸，下面的方法就是处理Image 得到一个nv21的数据
private class OnImageAvailableListenerImpl implements ImageReader.OnImageAvailableListener {
private byte[] y;
private byte[] u;
private byte[] v;
private byte[] nv21;
private ReentrantLock lock = new ReentrantLock();
private Object mImageReaderLock = 1;//1 available,0 unAvailable
@Override
public void onImageAvailable(ImageReader reader) {
Image image = reader.acquireNextImage();
if (image == null) {
return;
}
synchronized (mImageReaderLock) {
if (!mImageReaderLock.equals(1)) {
Logger.v(TAG, "--- image not available,just return!!!");
image.close();
return;
}
if (ImageFormat.YUV_420_888 == image.getFormat()) {
Image.Plane[] planes = image.getPlanes();
lock.lock();
if (y == null) {
y = new byte[planes[0].getBuffer().limit() - planes[0].getBuffer().position()];
u = new byte[planes[1].getBuffer().limit() - planes[1].getBuffer().position()];
v = new byte[planes[2].getBuffer().limit() - planes[2].getBuffer().position()];
}
if (image.getPlanes()[0].getBuffer().remaining() == y.length) {
planes[0].getBuffer().get(y);
planes[1].getBuffer().get(u);
planes[2].getBuffer().get(v);
if (nv21 == null) {
nv21 = new byte[planes[0].getRowStride() * mPreviewSize.getHeight() * 3 / 2];
}
if (nv21 != null && (nv21.length != planes[0].getRowStride() * mPreviewSize.getHeight() * 3 / 2)) {
return;
}
// 回传数据是YUV422
if (y.length / u.length == 2) {
ImageUtil.yuv422ToYuv420sp(y, u, v, nv21, planes[0].getRowStride(), mPreviewSize.getHeight());
}
// 回传数据是YUV420
else if (y.length / u.length == 4) {
ImageUtil.yuv420ToYuv420sp(y, u, v, nv21, planes[0].getRowStride(), mPreviewSize.getHeight());
}
//调用人脸分析算法,绘制人脸信息
dealWithFace(nv21);
}
lock.unlock();
}
}
image.close(); //一定不能掉了
}
}
实现上述需求相当于有三个操作，预览，录像，分析图片，所以需要给mPreviewBuilder添加三个surface，然后开启录制，刷新预览就可以了
mPreviewBuilder = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_RECORD);
List<Surface> surfaces = new ArrayList<>();
// Set up Surface for the camera preview
Surface previewSurface = new Surface(texture);
surfaces.add(previewSurface);
mPreviewBuilder.addTarget(previewSurface);
// Set up Surface for the MediaRecorder
Surface recorderSurface = mMediaRecorder.getSurface();
surfaces.add(recorderSurface);
mPreviewBuilder.addTarget(recorderSurface);
//分析图片
Surface imageSurface = mImageReader.getSurface();
surfaces.add(imageSurface);
mPreviewBuilder.addTarget(imageSurface);
先写到这里吧，文末会放出源码
未完待续......
源码
public class MonitorActivity extends BaseActivity implements ViewTreeObserver.OnGlobalLayoutListener {
private static final int SENSOR_ORIENTATION_DEFAULT_DEGREES = 90;
private static final int SENSOR_ORIENTATION_INVERSE_DEGREES = 180;
private static final SparseIntArray DEFAULT_ORIENTATIONS = new SparseIntArray();
private static final SparseIntArray INVERSE_ORIENTATIONS = new SparseIntArray();
private static final String TAG = "MonitorActivity";
static {
DEFAULT_ORIENTATIONS.append(Surface.ROTATION_0, 90);
DEFAULT_ORIENTATIONS.append(Surface.ROTATION_90, 0);
DEFAULT_ORIENTATIONS.append(Surface.ROTATION_180, 270);
DEFAULT_ORIENTATIONS.append(Surface.ROTATION_270, 180);
}
static {
INVERSE_ORIENTATIONS.append(Surface.ROTATION_0, 270);
INVERSE_ORIENTATIONS.append(Surface.ROTATION_90, 180);
INVERSE_ORIENTATIONS.append(Surface.ROTATION_180, 90);
INVERSE_ORIENTATIONS.append(Surface.ROTATION_270, 0);
}
private AutoFitTextureView mTextureView;
private TextView mButtonVideo;
private CameraDevice mCameraDevice;
private CameraCaptureSession mPreviewSession;
private TextureView.SurfaceTextureListener mSurfaceTextureListener
= new TextureView.SurfaceTextureListener() {
@Override
public void onSurfaceTextureAvailable(SurfaceTexture surfaceTexture,
int width, int height) {
openCamera(width, height);
}
@Override
public void onSurfaceTextureSizeChanged(SurfaceTexture surfaceTexture,
int width, int height) {
configureTransform(width, height);
}
@Override
public boolean onSurfaceTextureDestroyed(SurfaceTexture surfaceTexture) {
return true;
}
@Override
public void onSurfaceTextureUpdated(SurfaceTexture surfaceTexture) {
}
};
private Size mPreviewSize;
private Size mVideoSize;
private MediaRecorder mMediaRecorder;
private boolean mIsRecordingVideo;
/**
* 图片分析
*/
private ImageReader mImageReader;
private HandlerThread mBackgroundThread;
private Handler mBackgroundHandler;
private Semaphore mCameraOpenCloseLock = new Semaphore(1);
private TextView textRecordTick;
private RelativeLayout timeRl;
private ImageView ivClose;
public static long mRecordingBegin;
public static boolean mRecording;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_video);
mButtonVideo = findViewById(R.id.iv_start_stop);
textRecordTick = findViewById(R.id.tv_time);
timeRl = findViewById(R.id.rl_time);
ivClose = findViewById(R.id.iv_close);
mTextureView = findViewById(R.id.textureView);
mButtonVideo.setText("开启监控");
mButtonVideo.setCompoundDrawablesWithIntrinsicBounds(null, null, null, getResources().getDrawable(R.drawable.icon_start));
mButtonVideo.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (mIsRecordingVideo) {
stopRecordingVideo();
onStopRecord();
} else {
startRecordingVideo();
ivClose.setVisibility(View.GONE);
timeRl.setVisibility(View.VISIBLE);
mButtonVideo.setText("");
onStartRecord();
}
}
});
ivClose.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
finish();
}
});
startBackgroundThread();
if (mTextureView.isAvailable()) {
openCamera(mTextureView.getWidth(), mTextureView.getHeight());
} else {
mTextureView.setSurfaceTextureListener(mSurfaceTextureListener);
}
// Activity启动后就锁定为启动时的方向
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LOCKED);
}
private void onStartRecord() {
// 开始录像的通知，记下当前时间
mRecording = true;
mRecordingBegin = System.currentTimeMillis();
runOnUiThread(new Runnable() {
@Override
public void run() {
textRecordTick.setVisibility(View.VISIBLE);
textRecordTick.removeCallbacks(mRecordTickRunnable);
textRecordTick.post(mRecordTickRunnable);
}
});
}
private void onStopRecord() {
mRecording = false;
mRecordingBegin = 0;
runOnUiThread(new Runnable() {
@Override
public void run() {
textRecordTick.setVisibility(View.INVISIBLE);
textRecordTick.removeCallbacks(mRecordTickRunnable);
}
});
}
private long exceptionTime = 0;
private List<Long> exceptionList = new ArrayList<>();
// 录像时的线程
private Runnable mRecordTickRunnable = new Runnable() {
@Override
public void run() {
long duration = System.currentTimeMillis() - mRecordingBegin;
duration /= 1000;
exceptionTime = duration;
textRecordTick.setText(String.format("%02d:%02d:%02d", duration / 3600, duration % 3600 / 60, duration % 60));
textRecordTick.removeCallbacks(this);
textRecordTick.postDelayed(this, 1000);
}
};
@Override
public void onResume() {
super.onResume();
}
@Override
public void onPause() {
super.onPause();
}
@Override
protected void onDestroy() {
super.onDestroy();
closeCamera();
stopBackgroundThread();
}
private CameraDevice.StateCallback mStateCallback = new CameraDevice.StateCallback() {
@Override
public void onOpened(@NonNull CameraDevice cameraDevice) {
mCameraDevice = cameraDevice;
startPreview();
mCameraOpenCloseLock.release();
if (null != mTextureView) {
configureTransform(mTextureView.getWidth(), mTextureView.getHeight());
}
}
@Override
public void onDisconnected(@NonNull CameraDevice cameraDevice) {
mCameraOpenCloseLock.release();
cameraDevice.close();
mCameraDevice = null;
}
@Override
public void onError(@NonNull CameraDevice cameraDevice, int error) {
mCameraOpenCloseLock.release();
cameraDevice.close();
mCameraDevice = null;
Activity activity = MonitorActivity.this;
if (null != activity) {
activity.finish();
}
}
};
private Integer mSensorOrientation;
private String mNextVideoAbsolutePath;
private CaptureRequest.Builder mPreviewBuilder;
private static Size chooseVideoSize(Size[] choices) {
for (Size size : choices) {
if (size.getWidth() == size.getHeight() * 4 / 3 && size.getWidth() <= 1080) {
return size;
}
}
Logger.e(TAG, "Couldn't find any suitable video size");
return choices[choices.length - 1];
}
private static Size chooseOptimalSize(Size[] choices, int width, int height, Size aspectRatio) {
// Collect the supported resolutions that are at least as big as the preview Surface
List<Size> bigEnough = new ArrayList<>();
int w = aspectRatio.getWidth();
int h = aspectRatio.getHeight();
for (Size option : choices) {
if (option.getHeight() == option.getWidth() * h / w &&
option.getWidth() >= width && option.getHeight() >= height) {
bigEnough.add(option);
}
}
// Pick the smallest of those, assuming we found any
if (bigEnough.size() > 0) {
return Collections.min(bigEnough, new CompareSizesByArea());
} else {
Logger.e(TAG, "Couldn't find any suitable preview size");
return choices[0];
}
}
private void startBackgroundThread() {
mBackgroundThread = new HandlerThread("CameraBackground");
mBackgroundThread.start();
mBackgroundHandler = new Handler(mBackgroundThread.getLooper());
}
private void stopBackgroundThread() {
mBackgroundThread.quitSafely();
try {
mBackgroundThread.join();
mBackgroundThread = null;
mBackgroundHandler = null;
} catch (InterruptedException e) {
e.printStackTrace();
}
}
@SuppressWarnings("MissingPermission")
private void openCamera(int width, int height) {
final Activity activity = MonitorActivity.this;
if (null == activity || activity.isFinishing()) {
return;
}
CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE);
try {
Logger.d(TAG, "tryAcquire");
if (!mCameraOpenCloseLock.tryAcquire(2500, TimeUnit.MILLISECONDS)) {
throw new RuntimeException("Time out waiting to lock camera opening.");
}
String cameraId = manager.getCameraIdList()[0];
// Choose the sizes for camera preview and video recording
CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);
StreamConfigurationMap map = characteristics
.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
mSensorOrientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION);
if (map == null) {
throw new RuntimeException("Cannot get available preview/video sizes");
}
mVideoSize = chooseVideoSize(map.getOutputSizes(MediaRecorder.class));
mPreviewSize = chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class),
width, height, mVideoSize);
mImageReader = ImageReader.newInstance(mPreviewSize.getWidth(), mPreviewSize.getHeight(),
ImageFormat.YUV_420_888, 2);
mImageReader.setOnImageAvailableListener(
new OnImageAvailableListenerImpl(), mBackgroundHandler);
int orientation = getResources().getConfiguration().orientation;
if (orientation == Configuration.ORIENTATION_LANDSCAPE) {
mTextureView.setAspectRatio(1920, 1200);
} else {
mTextureView.setAspectRatio(mPreviewSize.getHeight(), mPreviewSize.getWidth());
}
configureTransform(width, height);
mMediaRecorder = new MediaRecorder();
manager.openCamera(cameraId, mStateCallback, null);
} catch (CameraAccessException e) {
Toast.makeText(activity, "Cannot access the camera.", Toast.LENGTH_SHORT).show();
activity.finish();
} catch (NullPointerException e) {
// Currently an NPE is thrown when the Camera2API is used but not supported on the
// device this code runs.
e.printStackTrace();
} catch (InterruptedException e) {
throw new RuntimeException("Interrupted while trying to lock camera opening.");
}
}
private void closeCamera() {
try {
mCameraOpenCloseLock.acquire();
closePreviewSession();
if (null != mCameraDevice) {
mCameraDevice.close();
mCameraDevice = null;
}
if (null != mMediaRecorder) {
mMediaRecorder.release();
mMediaRecorder = null;
}
} catch (InterruptedException e) {
throw new RuntimeException("Interrupted while trying to lock camera closing.");
} finally {
mCameraOpenCloseLock.release();
}
}
/**
* Start the camera preview.
*/
private void startPreview() {
if (null == mCameraDevice || !mTextureView.isAvailable() || null == mPreviewSize) {
return;
}
try {
closePreviewSession();
SurfaceTexture texture = mTextureView.getSurfaceTexture();
assert texture != null;
texture.setDefaultBufferSize(mPreviewSize.getWidth(), mPreviewSize.getHeight());
mPreviewBuilder = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
Surface previewSurface = new Surface(texture);
mPreviewBuilder.addTarget(previewSurface);
// mPreviewBuilder.addTarget(mImageReader.getSurface()); 预览时也实时分析
mCameraDevice.createCaptureSession(Arrays.asList(previewSurface),
new CameraCaptureSession.StateCallback() {
@Override
public void onConfigured(@NonNull CameraCaptureSession session) {
mPreviewSession = session;
updatePreview();
}
@Override
public void onConfigureFailed(@NonNull CameraCaptureSession session) {
Activity activity = MonitorActivity.this;
if (null != activity) {
Toast.makeText(activity, "Failed", Toast.LENGTH_SHORT).show();
}
}
}, mBackgroundHandler);
} catch (CameraAccessException e) {
e.printStackTrace();
}
}
/**
* Update the camera preview. {@link #startPreview()} needs to be called in advance.
*/
private void updatePreview() {
if (null == mCameraDevice) {
return;
}
try {
setUpCaptureRequestBuilder(mPreviewBuilder);
HandlerThread thread = new HandlerThread("CameraPreview");
thread.start();
mPreviewSession.setRepeatingRequest(mPreviewBuilder.build(), null, mBackgroundHandler);
} catch (CameraAccessException e) {
e.printStackTrace();
}
}
private void setUpCaptureRequestBuilder(CaptureRequest.Builder builder) {
builder.set(CaptureRequest.CONTROL_MODE, CameraMetadata.CONTROL_MODE_AUTO);
}
private void configureTransform(int viewWidth, int viewHeight) {
Activity activity = MonitorActivity.this;
if (null == mTextureView || null == mPreviewSize || null == activity) {
return;
}
int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
Matrix matrix = new Matrix();
RectF viewRect = new RectF(0, 0, viewWidth, viewHeight);
RectF bufferRect = new RectF(0, 0, mPreviewSize.getHeight(), mPreviewSize.getWidth());
float centerX = viewRect.centerX();
float centerY = viewRect.centerY();
if (Surface.ROTATION_90 == rotation || Surface.ROTATION_270 == rotation) {
bufferRect.offset(centerX - bufferRect.centerX(), centerY - bufferRect.centerY());
matrix.setRectToRect(viewRect, bufferRect, Matrix.ScaleToFit.FILL);
float scale = Math.max(
(float) viewHeight / mPreviewSize.getHeight(),
(float) viewWidth / mPreviewSize.getWidth());
matrix.postScale(scale, scale, centerX, centerY);
matrix.postRotate(90 * (rotation - 2), centerX, centerY);
}
mTextureView.setTransform(matrix);
}
private void setUpMediaRecorder() throws IOException {
final Activity activity = MonitorActivity.this;
if (null == activity) {
return;
}
mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.SURFACE);
mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
if (mNextVideoAbsolutePath == null || mNextVideoAbsolutePath.isEmpty()) {
mNextVideoAbsolutePath = getSystemFilePath(MonitorActivity.this);
}
mMediaRecorder.setOutputFile(mNextVideoAbsolutePath);
mMediaRecorder.setVideoEncodingBitRate(10000000);
mMediaRecorder.setVideoFrameRate(30);
mMediaRecorder.setVideoSize(mVideoSize.getWidth(), mVideoSize.getHeight());
mMediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);
mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
switch (mSensorOrientation) {
case SENSOR_ORIENTATION_DEFAULT_DEGREES:
mMediaRecorder.setOrientationHint(DEFAULT_ORIENTATIONS.get(rotation));
break;
case SENSOR_ORIENTATION_INVERSE_DEGREES:
mMediaRecorder.setOrientationHint(INVERSE_ORIENTATIONS.get(rotation));
break;
}
mMediaRecorder.prepare();
}
private void startRecordingVideo() {
if (null == mCameraDevice || !mTextureView.isAvailable() || null == mPreviewSize) {
return;
}
try {
closePreviewSession();
setUpMediaRecorder();
SurfaceTexture texture = mTextureView.getSurfaceTexture();
assert texture != null;
texture.setDefaultBufferSize(mPreviewSize.getWidth(), mPreviewSize.getHeight());
mPreviewBuilder = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_RECORD);
List<Surface> surfaces = new ArrayList<>();
// Set up Surface for the camera preview
Surface previewSurface = new Surface(texture);
surfaces.add(previewSurface);
mPreviewBuilder.addTarget(previewSurface);
// Set up Surface for the MediaRecorder
Surface recorderSurface = mMediaRecorder.getSurface();
surfaces.add(recorderSurface);
mPreviewBuilder.addTarget(recorderSurface);
//分析图片
Surface imageSurface = mImageReader.getSurface();
surfaces.add(imageSurface);
mPreviewBuilder.addTarget(imageSurface);
// Start a capture session
// Once the session starts, we can update the UI and start recording
mCameraDevice.createCaptureSession(surfaces, new CameraCaptureSession.StateCallback() {
@Override
public void onConfigured(@NonNull CameraCaptureSession cameraCaptureSession) {
mPreviewSession = cameraCaptureSession;
updatePreview();
MonitorActivity.this.runOnUiThread(new Runnable() {
@Override
public void run() {
// UI
mButtonVideo.setCompoundDrawablesWithIntrinsicBounds(null, null, null, getResources().getDrawable(R.drawable.icon_stop));
mIsRecordingVideo = true;
// Start recording
mMediaRecorder.start();
}
});
}
@Override
public void onConfigureFailed(@NonNull CameraCaptureSession cameraCaptureSession) {
Activity activity = MonitorActivity.this;
if (null != activity) {
Toast.makeText(activity, "Failed", Toast.LENGTH_SHORT).show();
}
}
}, mBackgroundHandler);
} catch (CameraAccessException | IOException e) {
e.printStackTrace();
}
}
private void closePreviewSession() {
if (mPreviewSession != null) {
mPreviewSession.close();
mPreviewSession = null;
}
}
private void stopRecordingVideo() {
// UI
mIsRecordingVideo = false;
mButtonVideo.setCompoundDrawablesWithIntrinsicBounds(null, getResources().getDrawable(R.drawable.icon_start), null, null);
// startPreview();
// Stop recording
mMediaRecorder.stop();
mMediaRecorder.reset();
Activity activity = this;
if (null != activity) {
// Toast.makeText(activity, "Video saved: " + mNextVideoAbsolutePath,
// Toast.LENGTH_SHORT).show();
Logger.d(TAG, "Video saved: " + mNextVideoAbsolutePath);
}
}
/**
* Compares two {@code Size}s based on their areas.
*/
static class CompareSizesByArea implements Comparator<Size> {
@Override
public int compare(Size lhs, Size rhs) {
// We cast here to ensure the multiplications won't overflow
return Long.signum((long) lhs.getWidth() * lhs.getHeight() -
(long) rhs.getWidth() * rhs.getHeight());
}
}
private class OnImageAvailableListenerImpl implements ImageReader.OnImageAvailableListener {
private byte[] y;
private byte[] u;
private byte[] v;
private byte[] nv21;
private ReentrantLock lock = new ReentrantLock();
private Object mImageReaderLock = 1;//1 available,0 unAvailable
@Override
public void onImageAvailable(ImageReader reader) {
Image image = reader.acquireNextImage();
// if (image == null) {
// return;
// }
// byte[] data = TengineKitSdk.getInstance().yuv2nv21camera2(image);
// detect(data);
if (image == null) {
return;
}
synchronized (mImageReaderLock) {
if (!mImageReaderLock.equals(1)) {
Logger.v(TAG, "--- image not available,just return!!!");
image.close();
return;
}
if (ImageFormat.YUV_420_888 == image.getFormat()) {
Image.Plane[] planes = image.getPlanes();
lock.lock();
if (y == null) {
y = new byte[planes[0].getBuffer().limit() - planes[0].getBuffer().position()];
u = new byte[planes[1].getBuffer().limit() - planes[1].getBuffer().position()];
v = new byte[planes[2].getBuffer().limit() - planes[2].getBuffer().position()];
}
if (image.getPlanes()[0].getBuffer().remaining() == y.length) {
planes[0].getBuffer().get(y);
planes[1].getBuffer().get(u);
planes[2].getBuffer().get(v);
if (nv21 == null) {
nv21 = new byte[planes[0].getRowStride() * mPreviewSize.getHeight() * 3 / 2];
}
if (nv21 != null && (nv21.length != planes[0].getRowStride() * mPreviewSize.getHeight() * 3 / 2)) {
return;
}
// 回传数据是YUV422
if (y.length / u.length == 2) {
ImageUtil.yuv422ToYuv420sp(y, u, v, nv21, planes[0].getRowStride(), mPreviewSize.getHeight());
}
// 回传数据是YUV420
else if (y.length / u.length == 4) {
ImageUtil.yuv420ToYuv420sp(y, u, v, nv21, planes[0].getRowStride(), mPreviewSize.getHeight());
}
//调用Arcsoft算法,绘制人脸信息
dealWithFace(nv21);
}
lock.unlock();
}
}
// image.close();
// dealWithFace(data);
image.close();
}
}
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