translate CameraHelper into English

translate CameraHelper into English
pull/166/head
xufulong 5 years ago
parent dfcea829a3
commit bdc39a62b0
  1. 11
      Live/src/main/java/com/frank/live/stream/CameraHelper.java
  2. 9
      Live/src/main/java/com/frank/live/stream/VideoStreamNew.java

@ -41,11 +41,8 @@ public class CameraHelper implements SurfaceHolder.Callback, Camera.PreviewCallb
private void stopPreview() { private void stopPreview() {
if (mCamera != null) { if (mCamera != null) {
//预览数据回调接口
mCamera.setPreviewCallback(null); mCamera.setPreviewCallback(null);
//停止预览
mCamera.stopPreview(); mCamera.stopPreview();
//释放摄像头
mCamera.release(); mCamera.release();
mCamera = null; mCamera = null;
} }
@ -102,7 +99,7 @@ public class CameraHelper implements SurfaceHolder.Callback, Camera.PreviewCallb
private void setPreviewSize(Camera.Parameters parameters) { private void setPreviewSize(Camera.Parameters parameters) {
List<Camera.Size> supportedPreviewSizes = parameters.getSupportedPreviewSizes(); List<Camera.Size> supportedPreviewSizes = parameters.getSupportedPreviewSizes();
Camera.Size size = supportedPreviewSizes.get(0); Camera.Size size = supportedPreviewSizes.get(0);
//选择最合适的camera支持分辨率 //select the best resolution of camera
int m = Math.abs(size.height * size.width - mWidth * mHeight); int m = Math.abs(size.height * size.width - mWidth * mHeight);
supportedPreviewSizes.remove(0); supportedPreviewSizes.remove(0);
for (Camera.Size next : supportedPreviewSizes) { for (Camera.Size next : supportedPreviewSizes) {
@ -151,8 +148,8 @@ public class CameraHelper implements SurfaceHolder.Callback, Camera.PreviewCallb
rotation90(data); rotation90(data);
break; break;
case Surface.ROTATION_90: case Surface.ROTATION_90:
break;
case Surface.ROTATION_270: case Surface.ROTATION_270:
default:
break; break;
} }
mPreviewCallback.onPreviewFrame(bytes, camera); mPreviewCallback.onPreviewFrame(bytes, camera);
@ -163,7 +160,7 @@ public class CameraHelper implements SurfaceHolder.Callback, Camera.PreviewCallb
int index = 0; int index = 0;
int ySize = mWidth * mHeight; int ySize = mWidth * mHeight;
int uvHeight = mHeight / 2; int uvHeight = mHeight / 2;
//后置摄像头顺时针旋转90度 //back camera rotate 90 deree
if (mCameraId == Camera.CameraInfo.CAMERA_FACING_BACK) { if (mCameraId == Camera.CameraInfo.CAMERA_FACING_BACK) {
for (int i = 0; i < mWidth; i++) { for (int i = 0; i < mWidth; i++) {
@ -181,7 +178,7 @@ public class CameraHelper implements SurfaceHolder.Callback, Camera.PreviewCallb
} }
} }
} else { } else {
//逆时针旋转90度 //rotate 90 degree
for (int i = 0; i < mWidth; i++) { for (int i = 0; i < mWidth; i++) {
int nPos = mWidth - 1; int nPos = mWidth - 1;
for (int j = 0; j < mHeight; j++) { for (int j = 0; j < mHeight; j++) {

@ -15,7 +15,7 @@ import com.frank.live.camera2.Camera2Listener;
import com.frank.live.param.VideoParam; import com.frank.live.param.VideoParam;
/** /**
* 视频推流:使用Camera2 * Pushing video stream: using Camera2
* Created by frank on 2020/02/12. * Created by frank on 2020/02/12.
*/ */
public class VideoStreamNew implements TextureView.SurfaceTextureListener, Camera2Listener { public class VideoStreamNew implements TextureView.SurfaceTextureListener, Camera2Listener {
@ -42,7 +42,7 @@ public class VideoStreamNew implements TextureView.SurfaceTextureListener, Camer
} }
/** /**
* 开始预览 * start previewing
*/ */
private void startPreview() { private void startPreview() {
int rotateDegree = 0; int rotateDegree = 0;
@ -85,7 +85,7 @@ public class VideoStreamNew implements TextureView.SurfaceTextureListener, Camer
} }
/** /**
* 停止预览 * stop previewing
*/ */
private void stopPreview() { private void stopPreview() {
if (camera2Helper != null) { if (camera2Helper != null) {
@ -117,7 +117,8 @@ public class VideoStreamNew implements TextureView.SurfaceTextureListener, Camer
} }
/** /**
* nv21摄像头数据 * camere preview frame data
*
* @param y plane of y * @param y plane of y
* @param u plane of u * @param u plane of u
* @param v plane of v * @param v plane of v

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