1 files changed, 0 insertions, 385 deletions
diff --git a/sl4a/Common/src/com/googlecode/android_scripting/webcam/WebCamFacade.java b/sl4a/Common/src/com/googlecode/android_scripting/webcam/WebCamFacade.java
deleted file mode 100644
index b984828..0000000
--- a/sl4a/Common/src/com/googlecode/android_scripting/webcam/WebCamFacade.java
+++ /dev/null
@@ -1,385 +0,0 @@
-/*
- * Copyright (C) 2016 Google Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not
- * use this file except in compliance with the License. You may obtain a copy of
- * the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations under
- * the License.
- */
-
-package com.googlecode.android_scripting.webcam;
-
-import java.io.ByteArrayOutputStream;
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.OutputStream;
-import java.net.InetSocketAddress;
-import java.util.Collections;
-import java.util.Comparator;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.Executor;
-
-import android.app.Service;
-import android.graphics.ImageFormat;
-import android.graphics.Rect;
-import android.graphics.YuvImage;
-import android.hardware.Camera;
-import android.hardware.Camera.Parameters;
-import android.hardware.Camera.PreviewCallback;
-import android.hardware.Camera.Size;
-import android.util.Base64;
-import android.view.SurfaceHolder;
-import android.view.SurfaceView;
-import android.view.WindowManager;
-import android.view.SurfaceHolder.Callback;
-
-import com.googlecode.android_scripting.BaseApplication;
-import com.googlecode.android_scripting.FutureActivityTaskExecutor;
-import com.googlecode.android_scripting.Log;
-import com.googlecode.android_scripting.SingleThreadExecutor;
-import com.googlecode.android_scripting.SimpleServer.SimpleServerObserver;
-import com.googlecode.android_scripting.facade.EventFacade;
-import com.googlecode.android_scripting.facade.FacadeManager;
-import com.googlecode.android_scripting.future.FutureActivityTask;
-import com.googlecode.android_scripting.jsonrpc.RpcReceiver;
-import com.googlecode.android_scripting.rpc.Rpc;
-import com.googlecode.android_scripting.rpc.RpcDefault;
-import com.googlecode.android_scripting.rpc.RpcOptional;
-import com.googlecode.android_scripting.rpc.RpcParameter;
-
-/**
- * Manages access to camera streaming.
- * <br>
- * <h3>Usage Notes</h3>
- * <br><b>webCamStart</b> and <b>webCamStop</b> are used to start and stop an Mpeg stream on a given port. <b>webcamAdjustQuality</b> is used to ajust the quality of the streaming video.
- * <br><b>cameraStartPreview</b> is used to get access to the camera preview screen. It will generate "preview" events as images become available.
- * <br>The preview has two modes: data or file. If you pass a non-blank, writable file path to the <b>cameraStartPreview</b> it will store jpg images in that folder.
- * It is up to the caller to clean up these files after the fact. If no file element is provided,
- * the event will include the image data as a base64 encoded string.
- * <h3>Event details</h3>
- * <br>The data element of the preview event will be a map, with the following elements defined.
- * <ul>
- * <li><b>format</b> - currently always "jpeg"
- * <li><b>width</b> - image width (in pixels)
- * <li><b>height</b> - image height (in pixels)
- * <li><b>quality</b> - JPEG quality. Number from 1-100
- * <li><b>filename</b> - Name of file where image was saved. Only relevant if filepath defined.
- * <li><b>error</b> - included if there was an IOException saving file, ie, disk full or path write protected.
- * <li><b>encoding</b> - Data encoding. If filepath defined, will be "file" otherwise "base64"
- * <li><b>data</b> - Base64 encoded image data.
- * </ul>
- *<br>Note that "filename", "error" and "data" are mutual exclusive.
- *<br>
- *<br>The webcam and preview modes use the same resources, so you can't use them both at the same time. Stop one mode before starting the other.
- *
- * @author Damon Kohler (damonkohler@gmail.com) (probably)
- * @author Robbie Matthews (rjmatthews62@gmail.com)
- *
- */
-public class WebCamFacade extends RpcReceiver {
-
-  private final Service mService;
-  private final Executor mJpegCompressionExecutor = new SingleThreadExecutor();
-  private final ByteArrayOutputStream mJpegCompressionBuffer = new ByteArrayOutputStream();
-
-  private volatile byte[] mJpegData;
-
-  private CountDownLatch mJpegDataReady;
-  private boolean mStreaming;
-  private int mPreviewHeight;
-  private int mPreviewWidth;
-  private int mJpegQuality;
-
-  private MjpegServer mJpegServer;
-  private FutureActivityTask<SurfaceHolder> mPreviewTask;
-  private Camera mCamera;
-  private Parameters mParameters;
-  private final EventFacade mEventFacade;
-  private boolean mPreview;
-  private File mDest;
-
-  private final PreviewCallback mPreviewCallback = new PreviewCallback() {
-    @Override
-    public void onPreviewFrame(final byte[] data, final Camera camera) {
-      mJpegCompressionExecutor.execute(new Runnable() {
-        @Override
-        public void run() {
-          mJpegData = compressYuvToJpeg(data);
-          mJpegDataReady.countDown();
-          if (mStreaming) {
-            camera.setOneShotPreviewCallback(mPreviewCallback);
-          }
-        }
-      });
-    }
-  };
-
-  private final PreviewCallback mPreviewEvent = new PreviewCallback() {
-    @Override
-    public void onPreviewFrame(final byte[] data, final Camera camera) {
-      mJpegCompressionExecutor.execute(new Runnable() {
-        @Override
-        public void run() {
-          mJpegData = compressYuvToJpeg(data);
-          Map<String,Object> map = new HashMap<String, Object>();
-          map.put("format", "jpeg");
-          map.put("width", mPreviewWidth);
-          map.put("height", mPreviewHeight);
-          map.put("quality", mJpegQuality);
-          if (mDest!=null) {
-            try {
-              File dest=File.createTempFile("prv",".jpg",mDest);
-              OutputStream output = new FileOutputStream(dest);
-              output.write(mJpegData);
-              output.close();
-              map.put("encoding","file");
-              map.put("filename",dest.toString());
-            } catch (IOException e) {
-              map.put("error", e.toString());
-            }
-          }
-          else {
-            map.put("encoding","Base64");
-            map.put("data", Base64.encodeToString(mJpegData, Base64.DEFAULT));
-          }
-          mEventFacade.postEvent("preview", map);
-          if (mPreview) {
-            camera.setOneShotPreviewCallback(mPreviewEvent);
-          }
-        }
-      });
-    }
-  };
-
-  public WebCamFacade(FacadeManager manager) {
-    super(manager);
-    mService = manager.getService();
-    mJpegDataReady = new CountDownLatch(1);
-    mEventFacade = manager.getReceiver(EventFacade.class);
-  }
-
-  private byte[] compressYuvToJpeg(final byte[] yuvData) {
-    mJpegCompressionBuffer.reset();
-    YuvImage yuvImage =
-        new YuvImage(yuvData, ImageFormat.NV21, mPreviewWidth, mPreviewHeight, null);
-    yuvImage.compressToJpeg(new Rect(0, 0, mPreviewWidth, mPreviewHeight), mJpegQuality,
-        mJpegCompressionBuffer);
-    return mJpegCompressionBuffer.toByteArray();
-  }
-
-  @Rpc(description = "Starts an MJPEG stream and returns a Tuple of address and port for the stream.")
-  public InetSocketAddress webcamStart(
-      @RpcParameter(name = "resolutionLevel", description = "increasing this number provides higher resolution") @RpcDefault("0") Integer resolutionLevel,
-      @RpcParameter(name = "jpegQuality", description = "a number from 0-100") @RpcDefault("20") Integer jpegQuality,
-      @RpcParameter(name = "port", description = "If port is specified, the webcam service will bind to port, otherwise it will pick any available port.") @RpcDefault("0") Integer port)
-      throws Exception {
-    try {
-      openCamera(resolutionLevel, jpegQuality);
-      return startServer(port);
-    } catch (Exception e) {
-      webcamStop();
-      throw e;
-    }
-  }
-
-  private InetSocketAddress startServer(Integer port) {
-    mJpegServer = new MjpegServer(new JpegProvider() {
-      @Override
-      public byte[] getJpeg() {
-        try {
-          mJpegDataReady.await();
-        } catch (InterruptedException e) {
-          Log.e(e);
-        }
-        return mJpegData;
-      }
-    });
-    mJpegServer.addObserver(new SimpleServerObserver() {
-      @Override
-      public void onDisconnect() {
-        if (mJpegServer.getNumberOfConnections() == 0 && mStreaming) {
-          stopStream();
-        }
-      }
-
-      @Override
-      public void onConnect() {
-        if (!mStreaming) {
-          startStream();
-        }
-      }
-    });
-    return mJpegServer.startPublic(port);
-  }
-
-  private void stopServer() {
-    if (mJpegServer != null) {
-      mJpegServer.shutdown();
-      mJpegServer = null;
-    }
-  }
-
-  @Rpc(description = "Adjusts the quality of the webcam stream while it is running.")
-  public void webcamAdjustQuality(
-      @RpcParameter(name = "resolutionLevel", description = "increasing this number provides higher resolution") @RpcDefault("0") Integer resolutionLevel,
-      @RpcParameter(name = "jpegQuality", description = "a number from 0-100") @RpcDefault("20") Integer jpegQuality)
-      throws Exception {
-    if (mStreaming == false) {
-      throw new IllegalStateException("Webcam not streaming.");
-    }
-    stopStream();
-    releaseCamera();
-    openCamera(resolutionLevel, jpegQuality);
-    startStream();
-  }
-
-  private void openCamera(Integer resolutionLevel, Integer jpegQuality) throws IOException,
-      InterruptedException {
-    mCamera = Camera.open();
-    mParameters = mCamera.getParameters();
-    mParameters.setPictureFormat(ImageFormat.JPEG);
-    mParameters.setPreviewFormat(ImageFormat.JPEG);
-    List<Size> supportedPreviewSizes = mParameters.getSupportedPreviewSizes();
-    Collections.sort(supportedPreviewSizes, new Comparator<Size>() {
-      @Override
-      public int compare(Size o1, Size o2) {
-        return o1.width - o2.width;
-      }
-    });
-    Size previewSize =
-        supportedPreviewSizes.get(Math.min(resolutionLevel, supportedPreviewSizes.size() - 1));
-    mPreviewHeight = previewSize.height;
-    mPreviewWidth = previewSize.width;
-    mParameters.setPreviewSize(mPreviewWidth, mPreviewHeight);
-    mJpegQuality = Math.min(Math.max(jpegQuality, 0), 100);
-    mCamera.setParameters(mParameters);
-    // TODO(damonkohler): Rotate image based on orientation.
-    mPreviewTask = createPreviewTask();
-    mCamera.startPreview();
-  }
-
-  private void startStream() {
-    mStreaming = true;
-    mCamera.setOneShotPreviewCallback(mPreviewCallback);
-  }
-
-  private void stopStream() {
-    mJpegDataReady = new CountDownLatch(1);
-    mStreaming = false;
-    if (mPreviewTask != null) {
-      mPreviewTask.finish();
-      mPreviewTask = null;
-    }
-  }
-
-  private void releaseCamera() {
-    if (mCamera != null) {
-      mCamera.release();
-      mCamera = null;
-    }
-    mParameters = null;
-  }
-
-  @Rpc(description = "Stops the webcam stream.")
-  public void webcamStop() {
-    stopServer();
-    stopStream();
-    releaseCamera();
-  }
-
-  private FutureActivityTask<SurfaceHolder> createPreviewTask() throws IOException,
-      InterruptedException {
-    FutureActivityTask<SurfaceHolder> task = new FutureActivityTask<SurfaceHolder>() {
-      @Override
-      public void onCreate() {
-        super.onCreate();
-        final SurfaceView view = new SurfaceView(getActivity());
-        getActivity().setContentView(view);
-        getActivity().getWindow().setSoftInputMode(
-            WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN);
-        //view.getHolder().setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
-        view.getHolder().addCallback(new Callback() {
-          @Override
-          public void surfaceDestroyed(SurfaceHolder holder) {
-          }
-
-          @Override
-          public void surfaceCreated(SurfaceHolder holder) {
-            setResult(view.getHolder());
-          }
-
-          @Override
-          public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
-          }
-        });
-      }
-    };
-    FutureActivityTaskExecutor taskExecutor =
-        ((BaseApplication) mService.getApplication()).getTaskExecutor();
-    taskExecutor.execute(task);
-    mCamera.setPreviewDisplay(task.getResult());
-    return task;
-  }
-
-  @Rpc(description = "Start Preview Mode. Throws 'preview' events.",returns="True if successful")
-  public boolean cameraStartPreview(
-          @RpcParameter(name = "resolutionLevel", description = "increasing this number provides higher resolution") @RpcDefault("0") Integer resolutionLevel,
-          @RpcParameter(name = "jpegQuality", description = "a number from 0-100") @RpcDefault("20") Integer jpegQuality,
-          @RpcParameter(name = "filepath", description = "Path to store jpeg files.") @RpcOptional String filepath)
-      throws InterruptedException {
-    mDest=null;
-    if (filepath!=null && (filepath.length()>0)) {
-      mDest = new File(filepath);
-      if (!mDest.exists()) mDest.mkdirs();
-      if (!(mDest.isDirectory() && mDest.canWrite())) {
-        return false;
-      }
-    }
-
-    try {
-      openCamera(resolutionLevel, jpegQuality);
-    } catch (IOException e) {
-      Log.e(e);
-      return false;
-    }
-    startPreview();
-    return true;
-  }
-
-  @Rpc(description = "Stop the preview mode.")
-  public void cameraStopPreview() {
-    stopPreview();
-  }
-
-  private void startPreview() {
-    mPreview = true;
-    mCamera.setOneShotPreviewCallback(mPreviewEvent);
-  }
-
-  private void stopPreview() {
-    mPreview = false;
-    if (mPreviewTask!=null)
-    {
-      mPreviewTask.finish();
-      mPreviewTask=null;
-    }
-    releaseCamera();
-  }
-
-  @Override
-  public void shutdown() {
-    mPreview=false;
-    webcamStop();
-  }
-}