| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * 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.android.mediaframeworktest.functional; |
| |
| import com.android.mediaframeworktest.MediaFrameworkTest; |
| import com.android.mediaframeworktest.MediaNames; |
| |
| import android.content.Context; |
| import android.hardware.Camera; |
| import android.hardware.Camera.PictureCallback; |
| import android.hardware.Camera.PreviewCallback; |
| import android.hardware.Camera.ShutterCallback; |
| import android.os.ConditionVariable; |
| import android.os.Environment; |
| import android.os.Looper; |
| import android.test.ActivityInstrumentationTestCase; |
| import android.test.suitebuilder.annotation.LargeTest; |
| import android.util.Log; |
| import android.view.SurfaceHolder; |
| |
| import java.io.*; |
| |
| /** |
| * Junit / Instrumentation test case for the camera api |
| |
| */ |
| public class CameraTest extends ActivityInstrumentationTestCase<MediaFrameworkTest> { |
| private String TAG = "CameraTest"; |
| |
| private boolean rawPreviewCallbackResult = false; |
| private boolean shutterCallbackResult = false; |
| private boolean rawPictureCallbackResult = false; |
| private boolean jpegPictureCallbackResult = false; |
| |
| private static int WAIT_FOR_COMMAND_TO_COMPLETE = 10000; // Milliseconds. |
| |
| private RawPreviewCallback mRawPreviewCallback = new RawPreviewCallback(); |
| private TestShutterCallback mShutterCallback = new TestShutterCallback(); |
| private RawPictureCallback mRawPictureCallback = new RawPictureCallback(); |
| private JpegPictureCallback mJpegPictureCallback = new JpegPictureCallback(); |
| |
| private boolean mInitialized = false; |
| private Looper mLooper = null; |
| private final ConditionVariable mPreviewDone = new ConditionVariable(); |
| private final ConditionVariable mSnapshotDone = new ConditionVariable(); |
| |
| Camera mCamera; |
| Context mContext; |
| |
| public CameraTest() { |
| super("com.android.mediaframeworktest", MediaFrameworkTest.class); |
| } |
| |
| protected void setUp() throws Exception { |
| super.setUp(); |
| } |
| |
| /* |
| * Initializes the message looper so that the Camera object can |
| * receive the callback messages. |
| */ |
| private void initializeMessageLooper() { |
| final ConditionVariable startDone = new ConditionVariable(); |
| Log.v(TAG, "start looper"); |
| new Thread() { |
| @Override |
| public void run() { |
| // Set up a looper to be used by camera. |
| Looper.prepare(); |
| Log.v(TAG, "start loopRun"); |
| // Save the looper so that we can terminate this thread |
| // after we are done with it. |
| mLooper = Looper.myLooper(); |
| mCamera = Camera.open(); |
| startDone.open(); |
| Looper.loop(); // Blocks forever until Looper.quit() is called. |
| Log.v(TAG, "initializeMessageLooper: quit."); |
| } |
| }.start(); |
| |
| if (!startDone.block(WAIT_FOR_COMMAND_TO_COMPLETE)) { |
| fail("initializeMessageLooper: start timeout"); |
| } |
| } |
| |
| /* |
| * Terminates the message looper thread. |
| */ |
| private void terminateMessageLooper() throws Exception { |
| mLooper.quit(); |
| // Looper.quit() is asynchronous. The looper may still has some |
| // preview callbacks in the queue after quit is called. The preview |
| // callback still uses the camera object (setHasPreviewCallback). |
| // After camera is released, RuntimeException will be thrown from |
| // the method. So we need to join the looper thread here. |
| mLooper.getThread().join(); |
| mCamera.release(); |
| } |
| |
| //Implement the previewCallback |
| private final class RawPreviewCallback implements PreviewCallback { |
| public void onPreviewFrame(byte [] rawData, Camera camera) { |
| Log.v(TAG, "Preview callback start"); |
| int rawDataLength = 0; |
| if (rawData != null) { |
| rawDataLength = rawData.length; |
| } |
| if (rawDataLength > 0) { |
| rawPreviewCallbackResult = true; |
| } else { |
| rawPreviewCallbackResult = false; |
| } |
| mPreviewDone.open(); |
| Log.v(TAG, "Preview callback stop"); |
| } |
| }; |
| |
| //Implement the shutterCallback |
| private final class TestShutterCallback implements ShutterCallback { |
| public void onShutter() { |
| shutterCallbackResult = true; |
| Log.v(TAG, "onShutter called"); |
| } |
| }; |
| |
| //Implement the RawPictureCallback |
| private final class RawPictureCallback implements PictureCallback { |
| public void onPictureTaken(byte [] rawData, Camera camera) { |
| // no support for raw data - success if we get the callback |
| rawPictureCallbackResult = true; |
| Log.v(TAG, "RawPictureCallback callback"); |
| } |
| }; |
| |
| //Implement the JpegPictureCallback |
| private final class JpegPictureCallback implements PictureCallback { |
| public void onPictureTaken(byte [] rawData, Camera camera) { |
| try { |
| if (rawData != null) { |
| int rawDataLength = rawData.length; |
| File rawoutput = new File( |
| Environment.getExternalStorageDirectory().toString(), "/test.bmp"); |
| FileOutputStream outstream = new FileOutputStream(rawoutput); |
| outstream.write(rawData); |
| Log.v(TAG, "JpegPictureCallback rawDataLength = " + rawDataLength); |
| jpegPictureCallbackResult = true; |
| } else { |
| jpegPictureCallbackResult = false; |
| } |
| mSnapshotDone.open(); |
| Log.v(TAG, "Jpeg Picture callback"); |
| } catch (Exception e) { |
| Log.v(TAG, e.toString()); |
| } |
| } |
| }; |
| |
| private void waitForPreviewDone() { |
| if (!mPreviewDone.block(WAIT_FOR_COMMAND_TO_COMPLETE)) { |
| Log.v(TAG, "waitForPreviewDone: timeout"); |
| } |
| mPreviewDone.close(); |
| } |
| |
| private void waitForSnapshotDone() { |
| if (!mSnapshotDone.block(MediaNames.WAIT_SNAPSHOT_TIME)) { |
| // timeout could be expected or unexpected. The caller will decide. |
| Log.v(TAG, "waitForSnapshotDone: timeout"); |
| } |
| mSnapshotDone.close(); |
| } |
| |
| |
| private void checkTakePicture() { |
| SurfaceHolder mSurfaceHolder; |
| try { |
| mSurfaceHolder = MediaFrameworkTest.mSurfaceView.getHolder(); |
| mCamera.setPreviewDisplay(mSurfaceHolder); |
| Log.v(TAG, "Start preview"); |
| mCamera.startPreview(); |
| waitForPreviewDone(); |
| mCamera.setPreviewCallback(null); |
| mCamera.takePicture(mShutterCallback, mRawPictureCallback, mJpegPictureCallback); |
| waitForSnapshotDone(); |
| } catch (Exception e) { |
| Log.v(TAG, e.toString()); |
| } |
| } |
| |
| private void checkPreviewCallback() { |
| SurfaceHolder mSurfaceHolder; |
| try { |
| mSurfaceHolder = MediaFrameworkTest.mSurfaceView.getHolder(); |
| mCamera.setPreviewDisplay(mSurfaceHolder); |
| Log.v(TAG, "start preview"); |
| mCamera.startPreview(); |
| waitForPreviewDone(); |
| mCamera.setPreviewCallback(null); |
| } catch (Exception e) { |
| Log.v(TAG, e.toString()); |
| } |
| } |
| |
| /* |
| * TODO(yslau): Need to setup the golden rawData and compare the |
| * the new captured rawData with the golden one. |
| * |
| * Test case 1: Take a picture and verify all the callback |
| * functions are called properly. |
| */ |
| @LargeTest |
| public void testTakePicture() throws Exception { |
| initializeMessageLooper(); |
| mCamera.setPreviewCallback(mRawPreviewCallback); |
| checkTakePicture(); |
| terminateMessageLooper(); |
| assertTrue("shutterCallbackResult", shutterCallbackResult); |
| assertTrue("rawPictureCallbackResult", rawPictureCallbackResult); |
| assertTrue("jpegPictureCallbackResult", jpegPictureCallbackResult); |
| } |
| |
| /* |
| * Test case 2: Set the preview and |
| * verify the RawPreviewCallback is called |
| */ |
| @LargeTest |
| public void testCheckPreview() throws Exception { |
| initializeMessageLooper(); |
| mCamera.setPreviewCallback(mRawPreviewCallback); |
| checkPreviewCallback(); |
| terminateMessageLooper(); |
| assertTrue("RawPreviewCallbackResult", rawPreviewCallbackResult); |
| } |
| |
| } |
| |