新增获取支持的分辨率，自动对焦功能

app/src/main/java/com/jiangdg/usbcamera/view/USBCameraActivity.java

@@ -16,6 +16,7 @@ import com.jiangdg.usbcamera.FileUtils;
 import com.jiangdg.usbcamera.R;
 import com.jiangdg.usbcamera.USBCameraManager;
 import com.serenegiant.usb.CameraDialog;
+import com.serenegiant.usb.Size;
 import com.serenegiant.usb.USBMonitor;
 import com.serenegiant.usb.common.AbstractUVCCameraHandler;
 import com.serenegiant.usb.encoder.RecordParams;
@@ -26,6 +27,7 @@ import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
 import java.io.IOException;
+import java.util.List;
 
 import butterknife.BindView;
 import butterknife.ButterKnife;
@@ -147,16 +149,19 @@ public class USBCameraActivity extends AppCompatActivity implements CameraDialog
                     }
                 });
                 break;
-            // 开启或关闭Camera
+            // 点击后自动对焦
             case R.id.camera_view:
-//                if(mUSBManager != null){
-//                    boolean isOpened = mUSBManager.isCameraOpened();
-//                    if(! isOpened){
-//                        CameraDialog.showDialog(USBCameraActivity.this);
-//                    }else {
-//                        mUSBManager.closeCamera();
-//                    }
-//                }
+                if(mUSBManager == null)
+                    return;
+//                mUSBManager.startCameraFoucs();
+//                showShortMsg("对焦相机");
+                List<Size> list = mUSBManager.getSupportedPreviewSizes();
+                StringBuilder sb = new StringBuilder();
+                for(Size size:list){
+                    sb.append(size.width+"x"+size.height);
+                    sb.append("\n");
+                }
+                showShortMsg(sb.toString());
                 break;
             case R.id.btn_capture_pic:
                 if(mUSBManager == null || ! mUSBManager.isCameraOpened()){

libusbcamera/src/main/java/com/jiangdg/usbcamera/USBCameraManager.java

@@ -8,6 +8,7 @@ import android.os.Environment;
 
 import com.jiangdg.libusbcamera.R;
 import com.serenegiant.usb.DeviceFilter;
+import com.serenegiant.usb.Size;
 import com.serenegiant.usb.USBMonitor;
 import com.serenegiant.usb.common.AbstractUVCCameraHandler;
 import com.serenegiant.usb.common.UVCCameraHandler;
@@ -194,9 +195,7 @@ public class USBCameraManager{
         }
     }
 
-    /**
-     * 返回
-     * */
+    // 返回USB设备列表数量
     public int getUsbDeviceCount(){
         List<UsbDevice> devList = getUsbDeviceList();
         if(devList==null || devList.size() ==0){
@@ -205,6 +204,7 @@ public class USBCameraManager{
         return devList.size();
     }
 
+    // 返回USB设备列表
     private List<UsbDevice> getUsbDeviceList(){
         List<DeviceFilter> deviceFilters = DeviceFilter.getDeviceFilters(mContext, R.xml.device_filter);
         if(mUSBMonitor == null || deviceFilters == null)
@@ -212,28 +212,28 @@ public class USBCameraManager{
         return mUSBMonitor.getDeviceList(deviceFilters.get(0));
     }
 
-    /**
-     * 抓拍照片
-     * */
+    // 拍照
     public void capturePicture(String savePath){
         if(mCameraHandler != null && mCameraHandler.isOpened()){
             mCameraHandler.captureStill(savePath);
         }
     }
 
+    // 开始录像
     public void startRecording(RecordParams params, AbstractUVCCameraHandler.OnEncodeResultListener listener){
         if(mCameraHandler != null && ! isRecording()){
             mCameraHandler.startRecording(params,listener);
         }
     }
 
-
+    // 停止录像
     public void stopRecording(){
         if(mCameraHandler != null && isRecording()){
             mCameraHandler.stopRecording();
         }
     }
 
+    // 是否正在录像
     public boolean isRecording(){
         if(mCameraHandler != null){
             return mCameraHandler.isRecording();
@@ -241,6 +241,7 @@ public class USBCameraManager{
         return false;
     }
 
+    // 是否打开Camera
     public boolean isCameraOpened(){
         if(mCameraHandler != null){
             return mCameraHandler.isOpened();
@@ -248,11 +249,7 @@ public class USBCameraManager{
         return false;
     }
 
-
-
-    /**
-     * 释放资源
-     * */
+    // 释放资源
     public void release(){
         // 关闭摄像头
         closeCamera();
@@ -272,23 +269,39 @@ public class USBCameraManager{
         return mUSBMonitor;
     }
 
-
+    // 关闭Camera
     public void closeCamera() {
         if(mCameraHandler != null){
             mCameraHandler.close();
         }
     }
 
+    // 打开Camera
     private void openCamera(USBMonitor.UsbControlBlock ctrlBlock) {
         if(mCameraHandler != null){
             mCameraHandler.open(ctrlBlock);
         }
     }
 
+    // 开始预览
     public void startPreview(CameraViewInterface cameraView,AbstractUVCCameraHandler.OnPreViewResultListener mPreviewListener) {
         SurfaceTexture st = cameraView.getSurfaceTexture();
         if(mCameraHandler != null){
             mCameraHandler.startPreview(st,mPreviewListener);
         }
     }
+
+    // Camera对焦
+    public void startCameraFoucs(){
+        if(mCameraHandler != null){
+            mCameraHandler.startCameraFoucs();
+        }
+    }
+
+    // 获取Camera支持的所有分辨率参数
+    public List<Size> getSupportedPreviewSizes(){
+        if(mCameraHandler == null)
+            return null;
+        return mCameraHandler.getSupportedPreviewSizes();
+    }
 }

libusbcamera/src/main/java/com/serenegiant/usb/common/AbstractUVCCameraHandler.java

@@ -18,6 +18,7 @@ import android.view.SurfaceHolder;
 
 import com.jiangdg.usbcamera.FileUtils;
 import com.serenegiant.usb.IFrameCallback;
+import com.serenegiant.usb.Size;
 import com.serenegiant.usb.USBMonitor;
 import com.serenegiant.usb.UVCCamera;
 import com.serenegiant.usb.encoder.MediaAudioEncoder;
@@ -42,6 +43,7 @@ import java.lang.reflect.InvocationTargetException;
 import java.nio.ByteBuffer;
 import java.text.SimpleDateFormat;
 import java.util.Date;
+import java.util.List;
 import java.util.Set;
 import java.util.concurrent.CopyOnWriteArraySet;
 
@@ -54,6 +56,7 @@ public  abstract class AbstractUVCCameraHandler extends Handler {
 	private static final boolean DEBUG = true;	// TODO set false on release
 	private static final String TAG = "AbsUVCCameraHandler";
 
+
 	// 对外回调接口
 	public interface CameraCallback {
 		public void onOpen();
@@ -85,6 +88,7 @@ public  abstract class AbstractUVCCameraHandler extends Handler {
 	private static final int MSG_CAPTURE_STOP = 6;
 	private static final int MSG_MEDIA_UPDATE = 7;
 	private static final int MSG_RELEASE = 9;
+	private static final int MSG_CAMERA_FOUCS = 10;
 	// 音频线程
 //	private static final int MSG_AUDIO_START = 10;
 //	private static final int MSG_AUDIO_STOP = 11;
@@ -225,6 +229,14 @@ public  abstract class AbstractUVCCameraHandler extends Handler {
 		sendEmptyMessage(MSG_CAPTURE_STOP);
 	}
 
+	public void startCameraFoucs(){
+		sendEmptyMessage(MSG_CAMERA_FOUCS);
+	}
+
+	public List<Size> getSupportedPreviewSizes(){
+		return mWeakThread.get().getSupportedSizes();
+	}
+
 //	// 启动音频线程
 //	public void startAudioThread(){
 //		sendEmptyMessage(MSG_AUDIO_START);
@@ -350,6 +362,10 @@ public  abstract class AbstractUVCCameraHandler extends Handler {
 			case MSG_RELEASE:
 				thread.handleRelease();
 				break;
+			// 自动对焦
+			case MSG_CAMERA_FOUCS:
+				thread.handleCameraFoucs();
+				break;
 			// 音频线程
 //			case MSG_AUDIO_START:
 //				thread.startAudioRecord();
@@ -820,6 +836,21 @@ public  abstract class AbstractUVCCameraHandler extends Handler {
 			if (DEBUG) Log.v(TAG_THREAD, "handleRelease:finished");
 		}
 
+		// 自动对焦
+		public void handleCameraFoucs() {
+			if (DEBUG) Log.v(TAG_THREAD, "handleStartPreview:");
+			if ((mUVCCamera == null) || !mIsPreviewing)
+				return;
+			mUVCCamera.setAutoFocus(true);
+		}
+
+		// 获取支持的分辨率
+		public List<Size> getSupportedSizes() {
+			if ((mUVCCamera == null) || !mIsPreviewing)
+				return null;
+			return mUVCCamera.getSupportedSizeList();
+		}
+
 		private final MediaEncoder.MediaEncoderListener mMediaEncoderListener = new MediaEncoder.MediaEncoderListener() {
 			@Override
 			public void onPrepared(final MediaEncoder encoder) {

libusbcamera/src/main/java/com/serenegiant/usb/common/UVCCameraHandler.java

@@ -132,4 +132,9 @@ public class UVCCameraHandler extends AbstractUVCCameraHandler {
 	public void captureStill(final String path) {
 		super.captureStill(path);
 	}
+
+	@Override
+	public void startCameraFoucs() {
+		super.startCameraFoucs();
+	}
 }