From a5f940517b97496b1607ed6f9248840d26c2b0d8 Mon Sep 17 00:00:00 2001 From: Mattia Iavarone Date: Sat, 3 Mar 2018 00:51:32 +0100 Subject: [PATCH] Move to PictureResult, rewrote takePicture and takePictureSnapshot --- MIGRATION.md | 2 + README.md | 18 ++-- .../cameraview/CameraUtilsTest.java | 6 +- .../cameraview/CameraViewCallbacksTest.java | 2 +- .../cameraview/CropHelperTest.java | 76 ----------------- .../cameraview/IntegrationTest.java | 6 +- .../cameraview/MockCameraController.java | 2 +- .../cameraview/PictureResultTest.java | 43 ++++++++++ .../cameraview/YuvHelperTest.java | 64 ++++++++++++++ .../com/otaliastudios/cameraview/Camera1.java | 68 +++++++++++---- .../com/otaliastudios/cameraview/Camera2.java | 2 +- .../cameraview/CameraController.java | 4 +- .../cameraview/CameraListener.java | 12 +-- .../otaliastudios/cameraview/CameraView.java | 70 +++------------ .../cameraview/PictureResult.java | 85 +++++++++++++++++++ .../cameraview/BitmapCallback.java | 19 +++++ .../otaliastudios/cameraview/CameraUtils.java | 60 ++++++------- .../otaliastudios/cameraview/CropHelper.java | 50 ----------- .../{RotationHelper.java => YuvHelper.java} | 31 ++++++- .../cameraview/demo/CameraActivity.java | 3 +- .../demo/PicturePreviewActivity.java | 4 +- 21 files changed, 357 insertions(+), 270 deletions(-) delete mode 100644 cameraview/src/androidTest/java/com/otaliastudios/cameraview/CropHelperTest.java create mode 100644 cameraview/src/androidTest/java/com/otaliastudios/cameraview/PictureResultTest.java create mode 100644 cameraview/src/androidTest/java/com/otaliastudios/cameraview/YuvHelperTest.java create mode 100644 cameraview/src/main/java/com/otaliastudios/cameraview/PictureResult.java create mode 100644 cameraview/src/main/utils/com/otaliastudios/cameraview/BitmapCallback.java delete mode 100644 cameraview/src/main/utils/com/otaliastudios/cameraview/CropHelper.java rename cameraview/src/main/utils/com/otaliastudios/cameraview/{RotationHelper.java => YuvHelper.java} (57%) diff --git a/MIGRATION.md b/MIGRATION.md index 96c63af0..125bb10b 100644 --- a/MIGRATION.md +++ b/MIGRATION.md @@ -12,3 +12,5 @@ - getSnapshotSize(): removed. The size of snapshots (pictures and videos) is equal to the preview size as returned by getPreviewSize(). - onVideoTaken(): now passing a VideoResult. Use VideoResult.getFile() to access the video file. +- CameraUtils.BitmapCallback: has been moved in a separate BitmapCallback class. +- isCapturingVideo(): renamed to isTakingVideo(). diff --git a/README.md b/README.md index 8e80ff07..4eb700f3 100644 --- a/README.md +++ b/README.md @@ -137,10 +137,13 @@ to handle the image callback. ```java camera.addCameraListener(new CameraListener() { @Override - public void onPictureTaken(byte[] picture) { - // Create a bitmap or a file... - // CameraUtils will read EXIF orientation for you, in a worker thread. - CameraUtils.decodeBitmap(picture, ...); + public void onPictureTaken(PictureResult result) { + // If planning to save a file, just get the jpeg array. + byte[] jpeg = result.getJpeg(); + + // If planning to show a Bitmap, we will take care of + // EXIF rotation and background threading for you... + result.asBitmap(maxWidth, maxHeight, callback); } }); @@ -218,14 +221,13 @@ camera.addCameraListener(new CameraListener() { * to decode the byte array taking care about orientation. */ @Override - public void onPictureTaken(byte[] picture) {} + public void onPictureTaken(PictureResult result) {} /** - * Notifies that a video capture has just ended. The file parameter is the one that - * was passed to takeVideo(File), or a fallback video file. + * Notifies that a video capture has just ended. */ @Override - public void onVideoTaken(File video) {} + public void onVideoTaken(VideoResult result) {} /** * Notifies that the device was tilted or the window offset changed. diff --git a/cameraview/src/androidTest/java/com/otaliastudios/cameraview/CameraUtilsTest.java b/cameraview/src/androidTest/java/com/otaliastudios/cameraview/CameraUtilsTest.java index 7961e376..5cb4b4e8 100644 --- a/cameraview/src/androidTest/java/com/otaliastudios/cameraview/CameraUtilsTest.java +++ b/cameraview/src/androidTest/java/com/otaliastudios/cameraview/CameraUtilsTest.java @@ -1,15 +1,11 @@ package com.otaliastudios.cameraview; -import android.annotation.TargetApi; -import android.app.Instrumentation; import android.content.Context; import android.content.pm.PackageManager; import android.graphics.Bitmap; import android.graphics.Color; -import android.support.test.InstrumentationRegistry; import android.support.test.filters.SmallTest; -import android.support.test.internal.runner.InstrumentationConnection; import android.support.test.runner.AndroidJUnit4; import org.junit.Test; @@ -49,7 +45,7 @@ public class CameraUtilsTest extends BaseTest { final byte[] data = os.toByteArray(); final Task decode = new Task<>(true); - final CameraUtils.BitmapCallback callback = new CameraUtils.BitmapCallback() { + final BitmapCallback callback = new BitmapCallback() { @Override public void onBitmapReady(Bitmap bitmap) { decode.end(bitmap); diff --git a/cameraview/src/androidTest/java/com/otaliastudios/cameraview/CameraViewCallbacksTest.java b/cameraview/src/androidTest/java/com/otaliastudios/cameraview/CameraViewCallbacksTest.java index 653c8968..4e3b57a6 100644 --- a/cameraview/src/androidTest/java/com/otaliastudios/cameraview/CameraViewCallbacksTest.java +++ b/cameraview/src/androidTest/java/com/otaliastudios/cameraview/CameraViewCallbacksTest.java @@ -255,7 +255,7 @@ public class CameraViewCallbacksTest extends BaseTest { jpegTask.end((byte[]) invocation.getArguments()[0]); return null; } - }).when(listener).onPictureTaken(any(byte[].class)); + }).when(listener).onPictureTaken(any(PictureResult.class)); // Fake our own dimensions. camera.setTop(0); diff --git a/cameraview/src/androidTest/java/com/otaliastudios/cameraview/CropHelperTest.java b/cameraview/src/androidTest/java/com/otaliastudios/cameraview/CropHelperTest.java deleted file mode 100644 index 3ca017b8..00000000 --- a/cameraview/src/androidTest/java/com/otaliastudios/cameraview/CropHelperTest.java +++ /dev/null @@ -1,76 +0,0 @@ -package com.otaliastudios.cameraview; - - -import android.content.Context; -import android.content.pm.PackageManager; -import android.graphics.Bitmap; -import android.graphics.BitmapFactory; -import android.graphics.Color; -import android.graphics.Rect; -import android.graphics.YuvImage; -import android.support.test.filters.SmallTest; -import android.support.test.runner.AndroidJUnit4; - -import org.junit.Test; -import org.junit.runner.RunWith; -import org.mockito.invocation.InvocationOnMock; -import org.mockito.stubbing.Answer; - -import java.io.ByteArrayOutputStream; -import java.io.OutputStream; - -import static org.junit.Assert.assertEquals; -import static org.junit.Assert.assertFalse; -import static org.junit.Assert.assertTrue; -import static org.mockito.Matchers.any; -import static org.mockito.Matchers.anyInt; -import static org.mockito.Mockito.anyString; -import static org.mockito.Mockito.mock; -import static org.mockito.Mockito.when; - -@RunWith(AndroidJUnit4.class) -@SmallTest -public class CropHelperTest extends BaseTest { - - @Test - public void testCropFromYuv() { - testCropFromYuv(1600, 1600, AspectRatio.of(16, 9)); - testCropFromYuv(1600, 1600, AspectRatio.of(9, 16)); - } - - @Test - public void testCropFromJpeg() { - testCropFromJpeg(1600, 1600, AspectRatio.of(16, 9)); - testCropFromJpeg(1600, 1600, AspectRatio.of(9, 16)); - } - - private void testCropFromYuv(final int w, final int h, final AspectRatio target) { - final boolean wider = target.toFloat() > ((float) w / (float) h); - byte[] b = CropHelper.cropToJpeg(mockYuv(w, h), target, 100); - Bitmap result = BitmapFactory.decodeByteArray(b, 0, b.length); - - // Assert. - AspectRatio ratio = AspectRatio.of(result.getWidth(), result.getHeight()); - assertEquals(target, ratio); - if (wider) { // width must match. - assertEquals(result.getWidth(), w); - } else { - assertEquals(result.getHeight(), h); - } - } - - private void testCropFromJpeg(int w, int h, AspectRatio target) { - final boolean wider = target.toFloat() > ((float) w / (float) h); - byte[] b = CropHelper.cropToJpeg(mockJpeg(w, h), target, 100); - Bitmap result = BitmapFactory.decodeByteArray(b, 0, b.length); - - // Assert. - AspectRatio ratio = AspectRatio.of(result.getWidth(), result.getHeight()); - assertEquals(target, ratio); - if (wider) { // width must match. - assertEquals(result.getWidth(), w); - } else { - assertEquals(result.getHeight(), h); - } - } -} diff --git a/cameraview/src/androidTest/java/com/otaliastudios/cameraview/IntegrationTest.java b/cameraview/src/androidTest/java/com/otaliastudios/cameraview/IntegrationTest.java index 1bba99cb..08810b89 100644 --- a/cameraview/src/androidTest/java/com/otaliastudios/cameraview/IntegrationTest.java +++ b/cameraview/src/androidTest/java/com/otaliastudios/cameraview/IntegrationTest.java @@ -137,7 +137,7 @@ public class IntegrationTest extends BaseTest { private byte[] waitForPicture(boolean expectSuccess) { final Task pic = new Task<>(true); - doEndTask(pic, 0).when(listener).onPictureTaken(any(byte[].class)); + doEndTask(pic, 0).when(listener).onPictureTaken(any(PictureResult.class)); byte[] result = pic.await(5000); if (expectSuccess) { assertNotNull("Can take picture", result); @@ -517,7 +517,7 @@ public class IntegrationTest extends BaseTest { waitForOpen(true); CountDownLatch latch = new CountDownLatch(2); - doCountDown(latch).when(listener).onPictureTaken(any(byte[].class)); + doCountDown(latch).when(listener).onPictureTaken(any(PictureResult.class)); camera.takePicture(); camera.takePicture(); @@ -553,7 +553,7 @@ public class IntegrationTest extends BaseTest { waitForOpen(true); CountDownLatch latch = new CountDownLatch(2); - doCountDown(latch).when(listener).onPictureTaken(any(byte[].class)); + doCountDown(latch).when(listener).onPictureTaken(any(PictureResult.class)); camera.takePictureSnapshot(); camera.takePictureSnapshot(); diff --git a/cameraview/src/androidTest/java/com/otaliastudios/cameraview/MockCameraController.java b/cameraview/src/androidTest/java/com/otaliastudios/cameraview/MockCameraController.java index d96ae5ac..910417db 100644 --- a/cameraview/src/androidTest/java/com/otaliastudios/cameraview/MockCameraController.java +++ b/cameraview/src/androidTest/java/com/otaliastudios/cameraview/MockCameraController.java @@ -97,7 +97,7 @@ public class MockCameraController extends CameraController { } @Override - void takePictureSnapshot() { + void takePictureSnapshot(boolean shouldCrop, AspectRatio viewAspectRatio) { } @Override diff --git a/cameraview/src/androidTest/java/com/otaliastudios/cameraview/PictureResultTest.java b/cameraview/src/androidTest/java/com/otaliastudios/cameraview/PictureResultTest.java new file mode 100644 index 00000000..086fcf88 --- /dev/null +++ b/cameraview/src/androidTest/java/com/otaliastudios/cameraview/PictureResultTest.java @@ -0,0 +1,43 @@ +package com.otaliastudios.cameraview; + + +import android.location.Location; +import android.support.test.filters.SmallTest; +import android.support.test.runner.AndroidJUnit4; + +import org.junit.Test; +import org.junit.runner.RunWith; +import org.mockito.Mockito; + +import java.io.File; + +import static org.junit.Assert.assertEquals; + + +@RunWith(AndroidJUnit4.class) +@SmallTest +public class PictureResultTest extends BaseTest { + + private PictureResult result = new PictureResult(); + + @Test + public void testResult() { + int rotation = 90; + Size size = new Size(20, 120); + byte[] jpeg = new byte[]{2, 4, 1, 5, 2}; + Location location = Mockito.mock(Location.class); + boolean isSnapshot = true; + + result.rotation = rotation; + result.size = size; + result.jpeg = jpeg; + result.location = location; + result.isSnapshot = isSnapshot; + + assertEquals(result.getRotation(), rotation); + assertEquals(result.getSize(), size); + assertEquals(result.getJpeg(), jpeg); + assertEquals(result.getLocation(), location); + assertEquals(result.isSnapshot(), isSnapshot); + } +} diff --git a/cameraview/src/androidTest/java/com/otaliastudios/cameraview/YuvHelperTest.java b/cameraview/src/androidTest/java/com/otaliastudios/cameraview/YuvHelperTest.java new file mode 100644 index 00000000..0bdc0030 --- /dev/null +++ b/cameraview/src/androidTest/java/com/otaliastudios/cameraview/YuvHelperTest.java @@ -0,0 +1,64 @@ +package com.otaliastudios.cameraview; + + +import android.content.Context; +import android.content.pm.PackageManager; +import android.graphics.Bitmap; +import android.graphics.BitmapFactory; +import android.graphics.Color; +import android.graphics.Rect; +import android.graphics.YuvImage; +import android.support.test.filters.SmallTest; +import android.support.test.runner.AndroidJUnit4; + +import org.junit.Test; +import org.junit.runner.RunWith; +import org.mockito.invocation.InvocationOnMock; +import org.mockito.stubbing.Answer; + +import java.io.ByteArrayOutputStream; +import java.io.OutputStream; + +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertFalse; +import static org.junit.Assert.assertNotEquals; +import static org.junit.Assert.assertTrue; +import static org.mockito.Matchers.any; +import static org.mockito.Matchers.anyInt; +import static org.mockito.Mockito.anyString; +import static org.mockito.Mockito.mock; +import static org.mockito.Mockito.when; + +@RunWith(AndroidJUnit4.class) +@SmallTest +public class YuvHelperTest extends BaseTest { + + @Test + public void testCrop() { + testCrop(new Size(1600, 1600), AspectRatio.of(16, 16)); + testCrop(new Size(1600, 1600), AspectRatio.of(16, 9)); + testCrop(new Size(1600, 1600), AspectRatio.of(9, 16)); + } + + private void testCrop(final Size inSize, final AspectRatio outRatio) { + AspectRatio inRatio = AspectRatio.of(inSize.getWidth(), inSize.getHeight()); + Rect out = YuvHelper.computeCrop(inSize, outRatio); + Size outSize = new Size(out.width(), out.height()); + assertTrue(outRatio.matches(outSize)); + + if (outRatio.matches(inSize)) { + // They are equal. + assertEquals(outSize.getWidth(), inSize.getWidth()); + assertEquals(outSize.getHeight(), inSize.getHeight()); + } else if (outRatio.toFloat() > inRatio.toFloat()) { + // Width must match. + assertEquals(outSize.getWidth(), inSize.getWidth()); + assertNotEquals(outSize.getHeight(), inSize.getHeight()); + } else { + // Height must match. + assertEquals(outSize.getHeight(), inSize.getHeight()); + assertNotEquals(outSize.getWidth(), inSize.getWidth()); + } + } + +} diff --git a/cameraview/src/main/java/com/otaliastudios/cameraview/Camera1.java b/cameraview/src/main/java/com/otaliastudios/cameraview/Camera1.java index ba52a938..b77cbfea 100644 --- a/cameraview/src/main/java/com/otaliastudios/cameraview/Camera1.java +++ b/cameraview/src/main/java/com/otaliastudios/cameraview/Camera1.java @@ -15,8 +15,11 @@ import android.support.annotation.NonNull; import android.support.annotation.Nullable; import android.support.annotation.WorkerThread; import android.util.Log; +import android.support.media.ExifInterface; import android.view.SurfaceHolder; +import java.io.ByteArrayInputStream; +import java.io.ByteArrayOutputStream; import java.io.File; import java.io.IOException; import java.util.ArrayList; @@ -509,9 +512,12 @@ class Camera1 extends CameraController implements Camera.PreviewCallback, Camera mIsCapturingImage = true; final int sensorToOutput = computeSensorToOutputOffset(); - final int sensorToView = computeSensorToViewOffset(); - final boolean outputMatchesView = (sensorToOutput + sensorToView + 180) % 180 == 0; - final boolean outputFlip = mFacing == Facing.FRONT; + int outputWidth = mPictureSize.getWidth(); + int outputHeight = mPictureSize.getHeight(); + //noinspection SuspiciousNameCombination + final Size outputSize = sensorToOutput % 180 == 0 ? + new Size(outputWidth, outputHeight) : + new Size(outputHeight, outputWidth); Camera.Parameters params = mCamera.getParameters(); params.setRotation(sensorToOutput); mCamera.setParameters(params); @@ -528,7 +534,21 @@ class Camera1 extends CameraController implements Camera.PreviewCallback, Camera @Override public void onPictureTaken(byte[] data, final Camera camera) { mIsCapturingImage = false; - mCameraCallbacks.processPicture(data, outputMatchesView, outputFlip); + int exifRotation; + try { + ExifInterface exif = new ExifInterface(new ByteArrayInputStream(data)); + int exifOrientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL); + exifRotation = CameraUtils.decodeExifOrientation(exifOrientation); + } catch (IOException e) { + exifRotation = 0; + } + PictureResult result = new PictureResult(); + result.jpeg = data; + result.isSnapshot = false; + result.location = mLocation; + result.rotation = exifRotation; + result.size = outputSize; + mCameraCallbacks.dispatchOnPictureTaken(result); camera.startPreview(); // This is needed, read somewhere in the docs. } } @@ -539,7 +559,7 @@ class Camera1 extends CameraController implements Camera.PreviewCallback, Camera @Override - void takePictureSnapshot() { + void takePictureSnapshot(final boolean shouldCrop, final AspectRatio viewAspectRatio) { LOG.v("takePictureSnapshot: scheduling"); schedule(null, true, new Runnable() { @Override @@ -548,6 +568,7 @@ class Camera1 extends CameraController implements Camera.PreviewCallback, Camera if (mIsCapturingImage) return; // This won't work while capturing a video. // Switch to takePicture. + // TODO v2: what to do here? if (mIsCapturingVideo) { takePicture(); return; @@ -555,7 +576,7 @@ class Camera1 extends CameraController implements Camera.PreviewCallback, Camera mIsCapturingImage = true; mCamera.setOneShotPreviewCallback(new Camera.PreviewCallback() { @Override - public void onPreviewFrame(final byte[] data, Camera camera) { + public void onPreviewFrame(final byte[] yuv, Camera camera) { mCameraCallbacks.onShutter(true); // Got to rotate the preview frame, since byte[] data here does not include @@ -564,22 +585,33 @@ class Camera1 extends CameraController implements Camera.PreviewCallback, Camera final int sensorToOutput = computeSensorToOutputOffset(); final int sensorToView = computeSensorToViewOffset(); final boolean outputMatchesView = (sensorToOutput + sensorToView + 180) % 180 == 0; - final boolean outputFlip = mFacing == Facing.FRONT; - final boolean flip = sensorToOutput % 180 != 0; - final int preWidth = mPreviewSize.getWidth(); - final int preHeight = mPreviewSize.getHeight(); - final int postWidth = flip ? preHeight : preWidth; - final int postHeight = flip ? preWidth : preHeight; + final Size originalSize = new Size(mPreviewSize.getWidth(), mPreviewSize.getHeight()); + final Size outputSize = sensorToOutput % 180 == 0 ? originalSize : originalSize.flip(); + final AspectRatio outputRatio = outputMatchesView ? viewAspectRatio : viewAspectRatio.inverse(); final int format = mPreviewFormat; WorkerHandler.run(new Runnable() { @Override public void run() { - - LOG.v("takePictureSnapshot: rotating."); - byte[] rotatedData = RotationHelper.rotate(data, preWidth, preHeight, sensorToOutput); - LOG.v("takePictureSnapshot: rotated."); - YuvImage yuv = new YuvImage(rotatedData, format, postWidth, postHeight, null); - mCameraCallbacks.processSnapshot(yuv, outputMatchesView, outputFlip); + // Rotate the picture, because no one will write EXIF data, + // then crop if needed. In both cases, transform yuv to jpeg. + LOG.v("takePictureSnapshot:", "rotating."); + byte[] data = YuvHelper.rotate(yuv, originalSize, sensorToOutput); + YuvImage yuv = new YuvImage(data, format, outputSize.getWidth(), outputSize.getHeight(), null); + + LOG.v("takePictureSnapshot:", "rotated. Cropping and transforming to jpeg."); + ByteArrayOutputStream stream = new ByteArrayOutputStream(); + Rect outputRect = YuvHelper.computeCrop(outputSize, outputRatio); + yuv.compressToJpeg(outputRect, 90, stream); + data = stream.toByteArray(); + + LOG.v("takePictureSnapshot:", "cropped. Dispatching."); + PictureResult result = new PictureResult(); + result.jpeg = data; + result.size = new Size(outputRect.width(), outputRect.height()); + result.rotation = 0; + result.location = mLocation; + result.isSnapshot = true; + mCameraCallbacks.dispatchOnPictureTaken(result); mIsCapturingImage = false; } }); diff --git a/cameraview/src/main/java/com/otaliastudios/cameraview/Camera2.java b/cameraview/src/main/java/com/otaliastudios/cameraview/Camera2.java index a34c48e0..4c43c222 100644 --- a/cameraview/src/main/java/com/otaliastudios/cameraview/Camera2.java +++ b/cameraview/src/main/java/com/otaliastudios/cameraview/Camera2.java @@ -91,7 +91,7 @@ class Camera2 extends CameraController { } @Override - void takePictureSnapshot() { + void takePictureSnapshot(boolean shouldCrop, AspectRatio viewAspectRatio) { } diff --git a/cameraview/src/main/java/com/otaliastudios/cameraview/CameraController.java b/cameraview/src/main/java/com/otaliastudios/cameraview/CameraController.java index f80dea8c..e2100028 100644 --- a/cameraview/src/main/java/com/otaliastudios/cameraview/CameraController.java +++ b/cameraview/src/main/java/com/otaliastudios/cameraview/CameraController.java @@ -326,7 +326,7 @@ abstract class CameraController implements abstract void takePicture(); - abstract void takePictureSnapshot(); + abstract void takePictureSnapshot(boolean shouldCrop, AspectRatio viewAspectRatio); abstract void takeVideo(@NonNull File file); @@ -409,7 +409,7 @@ abstract class CameraController implements return mPreviewSize; } - final boolean isCapturingVideo() { + final boolean isTakingVideo() { return mIsCapturingVideo; } diff --git a/cameraview/src/main/java/com/otaliastudios/cameraview/CameraListener.java b/cameraview/src/main/java/com/otaliastudios/cameraview/CameraListener.java index 1766b552..2ba3040f 100644 --- a/cameraview/src/main/java/com/otaliastudios/cameraview/CameraListener.java +++ b/cameraview/src/main/java/com/otaliastudios/cameraview/CameraListener.java @@ -49,16 +49,16 @@ public abstract class CameraListener { /** * Notifies that a picture previously captured with {@link CameraView#takePicture()} - * or {@link CameraView#takePictureSnapshot()} is ready to be shown or saved. + * or {@link CameraView#takePictureSnapshot()} is ready to be shown or saved to file. * - * If planning to get a bitmap, you can use {@link CameraUtils#decodeBitmap(byte[], CameraUtils.BitmapCallback)} - * to decode the byte array taking care about orientation. + * If planning to show a bitmap, you can use {@link PictureResult#asBitmap(int, int, BitmapCallback)} + * to decode the byte array taking care about orientation and threading. * - * @param jpeg captured picture + * @param result captured picture */ @UiThread - public void onPictureTaken(byte[] jpeg) { - // TODO v2: use a PictureResult. + public void onPictureTaken(PictureResult result) { + } diff --git a/cameraview/src/main/java/com/otaliastudios/cameraview/CameraView.java b/cameraview/src/main/java/com/otaliastudios/cameraview/CameraView.java index 47489a08..587e0688 100644 --- a/cameraview/src/main/java/com/otaliastudios/cameraview/CameraView.java +++ b/cameraview/src/main/java/com/otaliastudios/cameraview/CameraView.java @@ -15,8 +15,6 @@ import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.content.res.TypedArray; import android.graphics.PointF; -import android.graphics.Rect; -import android.graphics.YuvImage; import android.location.Location; import android.media.MediaActionSound; import android.os.Build; @@ -29,7 +27,6 @@ import android.view.MotionEvent; import android.view.ViewGroup; import android.widget.FrameLayout; -import java.io.ByteArrayOutputStream; import java.io.File; import java.util.ArrayList; import java.util.HashMap; @@ -1126,7 +1123,7 @@ public class CameraView extends FrameLayout implements LifecycleObserver { /** * Asks the camera to capture an image of the current scene. - * This will trigger {@link CameraListener#onPictureTaken(byte[])} if a listener + * This will trigger {@link CameraListener#onPictureTaken(PictureResult)} if a listener * was registered. * * Note that if sessionType is {@link SessionType#VIDEO}, this @@ -1141,7 +1138,7 @@ public class CameraView extends FrameLayout implements LifecycleObserver { /** * Asks the camera to capture a snapshot of the current preview. - * This eventually triggers {@link CameraListener#onPictureTaken(byte[])} if a listener + * This eventually triggers {@link CameraListener#onPictureTaken(PictureResult)} if a listener * was registered. * * The difference with {@link #takePicture()} is that this capture is faster, so it might be @@ -1150,7 +1147,9 @@ public class CameraView extends FrameLayout implements LifecycleObserver { * @see #takePicture() */ public void takePictureSnapshot() { - mCameraController.takePictureSnapshot(); + mCameraController.takePictureSnapshot( + mCameraPreview.isCropping(), + AspectRatio.of(getWidth(), getHeight())); } @@ -1374,8 +1373,8 @@ public class CameraView extends FrameLayout implements LifecycleObserver { * Returns true if the camera is currently recording a video * @return boolean indicating if the camera is recording a video */ - public boolean isCapturingVideo(){ - return mCameraController.isCapturingVideo(); + public boolean isTakingVideo(){ + return mCameraController.isTakingVideo(); } //endregion @@ -1387,9 +1386,8 @@ public class CameraView extends FrameLayout implements LifecycleObserver { void dispatchOnCameraClosed(); void onCameraPreviewSizeChanged(); void onShutter(boolean shouldPlaySound); - void processPicture(byte[] jpeg, boolean consistentWithView, boolean flipHorizontally); - void processSnapshot(YuvImage image, boolean consistentWithView, boolean flipHorizontally); void dispatchOnVideoTaken(VideoResult result); + void dispatchOnPictureTaken(PictureResult result); void dispatchOnFocusStart(@Nullable Gesture trigger, PointF where); void dispatchOnFocusEnd(@Nullable Gesture trigger, boolean success, PointF where); void dispatchOnZoomChanged(final float newValue, final PointF[] fingers); @@ -1453,62 +1451,14 @@ public class CameraView extends FrameLayout implements LifecycleObserver { } } - /** - * What would be great here is to ensure the EXIF tag in the jpeg is consistent with what we expect, - * and maybe add flipping when we have been using the front camera. - * Unfortunately this is not easy, because - * - You can't write EXIF data to a byte[] array, not with support library at least - * - You don't know what byte[] is, see {@link android.hardware.Camera.Parameters#setRotation(int)}. - * Sometimes our rotation is encoded in the byte array, sometimes a rotated byte[] is returned. - * Depends on the hardware. - * - * So for now we ignore flipping. - * - * @param consistentWithView is the final image (decoded respecting EXIF data) consistent with - * the view width and height? Or should we flip dimensions to have a - * consistent measure? - * @param flipHorizontally whether this picture should be flipped horizontally after decoding, - * because it was taken with the front camera. - */ @Override - public void processPicture(final byte[] jpeg, final boolean consistentWithView, final boolean flipHorizontally) { - mLogger.i("processPicture"); - dispatchOnPictureTaken(jpeg); - // TODO: remove. - } - - @Override - public void processSnapshot(final YuvImage yuv, final boolean consistentWithView, boolean flipHorizontally) { - mLogger.i("processSnapshot"); - mWorkerHandler.post(new Runnable() { - @Override - public void run() { - byte[] jpeg; - if (mCameraPreview.isCropping()) { - int w = consistentWithView ? getWidth() : getHeight(); - int h = consistentWithView ? getHeight() : getWidth(); - AspectRatio targetRatio = AspectRatio.of(w, h); - mLogger.i("processSnapshot", "is consistent?", consistentWithView); - mLogger.i("processSnapshot", "viewWidth?", getWidth(), "viewHeight?", getHeight()); - jpeg = CropHelper.cropToJpeg(yuv, targetRatio, 90); - } else { - ByteArrayOutputStream out = new ByteArrayOutputStream(); - yuv.compressToJpeg(new Rect(0, 0, yuv.getWidth(), yuv.getHeight()), 90, out); - jpeg = out.toByteArray(); - } - dispatchOnPictureTaken(jpeg); - } - }); - } - - private void dispatchOnPictureTaken(byte[] jpeg) { + public void dispatchOnPictureTaken(final PictureResult result) { mLogger.i("dispatchOnPictureTaken"); - final byte[] data = jpeg; mUiHandler.post(new Runnable() { @Override public void run() { for (CameraListener listener : mListeners) { - listener.onPictureTaken(data); + listener.onPictureTaken(result); } } }); diff --git a/cameraview/src/main/java/com/otaliastudios/cameraview/PictureResult.java b/cameraview/src/main/java/com/otaliastudios/cameraview/PictureResult.java new file mode 100644 index 00000000..c8c5da1c --- /dev/null +++ b/cameraview/src/main/java/com/otaliastudios/cameraview/PictureResult.java @@ -0,0 +1,85 @@ +package com.otaliastudios.cameraview; + +import android.location.Location; +import android.support.annotation.NonNull; +import android.support.annotation.Nullable; + +/** + * Wraps the picture captured by {@link CameraView#takePicture()} or + * {@link CameraView#takePictureSnapshot()}. + */ +public class PictureResult { + + boolean isSnapshot; + Location location; + int rotation; + Size size; + byte[] jpeg; + + PictureResult() {} + + /** + * Returns whether this result comes from a snapshot. + * + * @return whether this is a snapshot + */ + public boolean isSnapshot() { + return isSnapshot; + } + + /** + * Returns geographic information for this picture, if any. + * If it was set, it is also present in the file metadata. + * + * @return a nullable Location + */ + @Nullable + public Location getLocation() { + return location; + } + + /** + * Returns the clock-wise rotation that should be applied to the + * picture before displaying. If it is non-zero, it is also present + * in the jpeg EXIF metadata. + * + * @return the clock-wise rotation + */ + public int getRotation() { + return rotation; + } + + /** + * Returns the size of the picture after the rotation is applied. + * + * @return the Size of this picture + */ + @NonNull + public Size getSize() { + return size; + } + + /** + * Returns the raw jpeg, ready to be saved to file. + * + * @return the jpeg stream + */ + @NonNull + public byte[] getJpeg() { + return jpeg; + } + + + /** + * Shorthand for {@link CameraUtils#decodeBitmap(byte[], int, int, BitmapCallback)}. + * Decodes this picture on a background thread and posts the result in the UI thread using + * the given callback. + * + * @param maxWidth the max. width of final bitmap + * @param maxHeight the max. height of final bitmap + * @param callback a callback to be notified of image decoding + */ + public void asBitmap(int maxWidth, int maxHeight, BitmapCallback callback) { + CameraUtils.decodeBitmap(getJpeg(), maxWidth, maxHeight, callback); + } +} diff --git a/cameraview/src/main/utils/com/otaliastudios/cameraview/BitmapCallback.java b/cameraview/src/main/utils/com/otaliastudios/cameraview/BitmapCallback.java new file mode 100644 index 00000000..f7bc05a4 --- /dev/null +++ b/cameraview/src/main/utils/com/otaliastudios/cameraview/BitmapCallback.java @@ -0,0 +1,19 @@ +package com.otaliastudios.cameraview; + +import android.graphics.Bitmap; +import android.support.annotation.UiThread; + +/** + * Receives callbacks about a bitmap decoding operation. + */ +public interface BitmapCallback { + + /** + * Notifies that the bitmap was succesfully decoded. + * This is run on the UI thread. + * + * @param bitmap decoded bitmap + */ + @UiThread + void onBitmapReady(Bitmap bitmap); +} diff --git a/cameraview/src/main/utils/com/otaliastudios/cameraview/CameraUtils.java b/cameraview/src/main/utils/com/otaliastudios/cameraview/CameraUtils.java index cef7dadb..34bfa86f 100644 --- a/cameraview/src/main/utils/com/otaliastudios/cameraview/CameraUtils.java +++ b/cameraview/src/main/utils/com/otaliastudios/cameraview/CameraUtils.java @@ -172,27 +172,8 @@ public class CameraUtils { // http://sylvana.net/jpegcrop/exif_orientation.html stream = new ByteArrayInputStream(source); ExifInterface exif = new ExifInterface(stream); - Integer exifOrientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL); - switch (exifOrientation) { - case ExifInterface.ORIENTATION_NORMAL: - case ExifInterface.ORIENTATION_FLIP_HORIZONTAL: - orientation = 0; break; - - case ExifInterface.ORIENTATION_ROTATE_180: - case ExifInterface.ORIENTATION_FLIP_VERTICAL: - orientation = 180; break; - - case ExifInterface.ORIENTATION_ROTATE_90: - case ExifInterface.ORIENTATION_TRANSPOSE: - orientation = 90; break; - - case ExifInterface.ORIENTATION_ROTATE_270: - case ExifInterface.ORIENTATION_TRANSVERSE: - orientation = 270; break; - - default: orientation = 0; - } - + int exifOrientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL); + orientation = decodeExifOrientation(exifOrientation); flip = exifOrientation == ExifInterface.ORIENTATION_FLIP_HORIZONTAL || exifOrientation == ExifInterface.ORIENTATION_FLIP_VERTICAL || exifOrientation == ExifInterface.ORIENTATION_TRANSPOSE || @@ -238,6 +219,30 @@ public class CameraUtils { return bitmap; } + static int decodeExifOrientation(int exifOrientation) { + int orientation; + switch (exifOrientation) { + case ExifInterface.ORIENTATION_NORMAL: + case ExifInterface.ORIENTATION_FLIP_HORIZONTAL: + orientation = 0; break; + + case ExifInterface.ORIENTATION_ROTATE_180: + case ExifInterface.ORIENTATION_FLIP_VERTICAL: + orientation = 180; break; + + case ExifInterface.ORIENTATION_ROTATE_90: + case ExifInterface.ORIENTATION_TRANSPOSE: + orientation = 90; break; + + case ExifInterface.ORIENTATION_ROTATE_270: + case ExifInterface.ORIENTATION_TRANSVERSE: + orientation = 270; break; + + default: orientation = 0; + } + return orientation; + } + private static int computeSampleSize(int width, int height, int maxWidth, int maxHeight) { // https://developer.android.com/topic/performance/graphics/load-bitmap.html @@ -252,17 +257,4 @@ public class CameraUtils { } - /** - * Receives callbacks about a bitmap decoding operation. - */ - public interface BitmapCallback { - - /** - * Notifies that the bitmap was succesfully decoded. - * This is run on the UI thread. - * - * @param bitmap decoded bitmap - */ - @UiThread void onBitmapReady(Bitmap bitmap); - } } diff --git a/cameraview/src/main/utils/com/otaliastudios/cameraview/CropHelper.java b/cameraview/src/main/utils/com/otaliastudios/cameraview/CropHelper.java deleted file mode 100644 index 7273922e..00000000 --- a/cameraview/src/main/utils/com/otaliastudios/cameraview/CropHelper.java +++ /dev/null @@ -1,50 +0,0 @@ -package com.otaliastudios.cameraview; - -import android.graphics.Bitmap; -import android.graphics.Rect; -import android.graphics.YuvImage; - -import java.io.ByteArrayOutputStream; - -class CropHelper { - - - static byte[] cropToJpeg(YuvImage yuv, AspectRatio targetRatio, int jpegCompression) { - Rect crop = computeCrop(yuv.getWidth(), yuv.getHeight(), targetRatio); - ByteArrayOutputStream out = new ByteArrayOutputStream(); - yuv.compressToJpeg(crop, jpegCompression, out); - return out.toByteArray(); - } - - - // This reads a rotated Bitmap thanks to CameraUtils. Then crops and returns a byte array. - // In doing so, EXIF data is deleted. - static byte[] cropToJpeg(byte[] jpeg, AspectRatio targetRatio, int jpegCompression) { - - Bitmap image = CameraUtils.decodeBitmap(jpeg, Integer.MAX_VALUE, Integer.MAX_VALUE); - Rect cropRect = computeCrop(image.getWidth(), image.getHeight(), targetRatio); - Bitmap crop = Bitmap.createBitmap(image, cropRect.left, cropRect.top, cropRect.width(), cropRect.height()); - image.recycle(); - ByteArrayOutputStream out = new ByteArrayOutputStream(); - crop.compress(Bitmap.CompressFormat.JPEG, jpegCompression, out); - crop.recycle(); - return out.toByteArray(); - } - - private static Rect computeCrop(int currentWidth, int currentHeight, AspectRatio targetRatio) { - AspectRatio currentRatio = AspectRatio.of(currentWidth, currentHeight); - int x, y, width, height; - if (currentRatio.toFloat() > targetRatio.toFloat()) { - height = currentHeight; - width = (int) (height * targetRatio.toFloat()); - y = 0; - x = (currentWidth - width) / 2; - } else { - width = currentWidth; - height = (int) (width / targetRatio.toFloat()); - y = (currentHeight - height) / 2; - x = 0; - } - return new Rect(x, y, x + width, y + height); - } -} diff --git a/cameraview/src/main/utils/com/otaliastudios/cameraview/RotationHelper.java b/cameraview/src/main/utils/com/otaliastudios/cameraview/YuvHelper.java similarity index 57% rename from cameraview/src/main/utils/com/otaliastudios/cameraview/RotationHelper.java rename to cameraview/src/main/utils/com/otaliastudios/cameraview/YuvHelper.java index 9657c177..09c7c37e 100644 --- a/cameraview/src/main/utils/com/otaliastudios/cameraview/RotationHelper.java +++ b/cameraview/src/main/utils/com/otaliastudios/cameraview/YuvHelper.java @@ -1,13 +1,40 @@ package com.otaliastudios.cameraview; -class RotationHelper { +import android.graphics.Rect; +class YuvHelper { - static byte[] rotate(final byte[] yuv, final int width, final int height, final int rotation) { + static Rect computeCrop(Size currentSize, AspectRatio targetRatio) { + int currentWidth = currentSize.getWidth(); + int currentHeight = currentSize.getHeight(); + if (targetRatio.matches(currentSize)) { + return new Rect(0, 0, currentWidth, currentHeight); + } + + // They are not equal. Compute. + AspectRatio currentRatio = AspectRatio.of(currentWidth, currentHeight); + int x, y, width, height; + if (currentRatio.toFloat() > targetRatio.toFloat()) { + height = currentHeight; + width = (int) (height * targetRatio.toFloat()); + y = 0; + x = (currentWidth - width) / 2; + } else { + width = currentWidth; + height = (int) (width / targetRatio.toFloat()); + y = (currentHeight - height) / 2; + x = 0; + } + return new Rect(x, y, x + width, y + height); + } + + static byte[] rotate(final byte[] yuv, final Size size, final int rotation) { if (rotation == 0) return yuv; if (rotation % 90 != 0 || rotation < 0 || rotation > 270) { throw new IllegalArgumentException("0 <= rotation < 360, rotation % 90 == 0"); } + final int width = size.getWidth(); + final int height = size.getHeight(); final byte[] output = new byte[yuv.length]; final int frameSize = width * height; final boolean swap = rotation % 180 != 0; diff --git a/demo/src/main/java/com/otaliastudios/cameraview/demo/CameraActivity.java b/demo/src/main/java/com/otaliastudios/cameraview/demo/CameraActivity.java index 1384a64b..71917602 100644 --- a/demo/src/main/java/com/otaliastudios/cameraview/demo/CameraActivity.java +++ b/demo/src/main/java/com/otaliastudios/cameraview/demo/CameraActivity.java @@ -17,6 +17,7 @@ import com.otaliastudios.cameraview.CameraListener; import com.otaliastudios.cameraview.CameraLogger; import com.otaliastudios.cameraview.CameraOptions; import com.otaliastudios.cameraview.CameraView; +import com.otaliastudios.cameraview.PictureResult; import com.otaliastudios.cameraview.SessionType; import com.otaliastudios.cameraview.Size; import com.otaliastudios.cameraview.VideoResult; @@ -48,7 +49,7 @@ public class CameraActivity extends AppCompatActivity implements View.OnClickLis camera.setLifecycleOwner(this); camera.addCameraListener(new CameraListener() { public void onCameraOpened(CameraOptions options) { onOpened(); } - public void onPictureTaken(byte[] jpeg) { onPicture(jpeg); } + public void onPictureTaken(PictureResult result) { onPicture(result); } @Override public void onVideoTaken(VideoResult result) { diff --git a/demo/src/main/java/com/otaliastudios/cameraview/demo/PicturePreviewActivity.java b/demo/src/main/java/com/otaliastudios/cameraview/demo/PicturePreviewActivity.java index 906442a7..80caceb3 100644 --- a/demo/src/main/java/com/otaliastudios/cameraview/demo/PicturePreviewActivity.java +++ b/demo/src/main/java/com/otaliastudios/cameraview/demo/PicturePreviewActivity.java @@ -5,9 +5,9 @@ import android.graphics.Bitmap; import android.os.Bundle; import android.support.annotation.Nullable; import android.widget.ImageView; -import android.widget.TextView; import com.otaliastudios.cameraview.AspectRatio; +import com.otaliastudios.cameraview.BitmapCallback; import com.otaliastudios.cameraview.CameraUtils; import java.lang.ref.WeakReference; @@ -40,7 +40,7 @@ public class PicturePreviewActivity extends Activity { return; } - CameraUtils.decodeBitmap(b, 1000, 1000, new CameraUtils.BitmapCallback() { + CameraUtils.decodeBitmap(b, 1000, 1000, new BitmapCallback() { @Override public void onBitmapReady(Bitmap bitmap) { imageView.setImageBitmap(bitmap);