Mattia Iavarone
7 years ago
parent
4481c7ad45
commit
fa9fba1f90
@ -0,0 +1,28 @@ |
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package com.flurgle.camerakit; |
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import android.support.media.ExifInterface; |
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class ExifUtils { |
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public static int getOrientationTag(int rotation, boolean flip) { |
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switch (rotation) { |
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case 90: |
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return flip ? ExifInterface.ORIENTATION_TRANSPOSE : |
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ExifInterface.ORIENTATION_ROTATE_90; |
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case 180: |
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return flip ? ExifInterface.ORIENTATION_FLIP_VERTICAL : |
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ExifInterface.ORIENTATION_ROTATE_180; |
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case 270: |
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return flip ? ExifInterface.ORIENTATION_TRANSVERSE : |
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ExifInterface.ORIENTATION_ROTATE_270; |
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case 0: |
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default: |
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return flip ? ExifInterface.ORIENTATION_FLIP_HORIZONTAL : |
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ExifInterface.ORIENTATION_NORMAL; |
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} |
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} |
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} |
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@ -1,67 +0,0 @@ |
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package com.flurgle.camerakit; |
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import android.graphics.Bitmap; |
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import android.graphics.BitmapFactory; |
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import android.graphics.BitmapRegionDecoder; |
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import android.graphics.Rect; |
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import android.graphics.YuvImage; |
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import android.util.Log; |
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import java.io.ByteArrayOutputStream; |
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import java.io.IOException; |
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public class CenterCrop { |
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private byte[] croppedJpeg; |
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public CenterCrop(YuvImage yuv, AspectRatio targetRatio, int jpegCompression) { |
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Rect crop = getCrop(yuv.getWidth(), yuv.getHeight(), targetRatio); |
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ByteArrayOutputStream out = new ByteArrayOutputStream(); |
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yuv.compressToJpeg(crop, jpegCompression, out); |
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this.croppedJpeg = out.toByteArray(); |
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} |
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public CenterCrop(byte[] jpeg, AspectRatio targetRatio, int jpegCompression) { |
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BitmapFactory.Options options = new BitmapFactory.Options(); |
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options.inJustDecodeBounds = true; |
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BitmapFactory.decodeByteArray(jpeg, 0, jpeg.length, options); |
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Rect crop = getCrop(options.outWidth, options.outHeight, targetRatio); |
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try { |
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Bitmap bitmap = BitmapRegionDecoder.newInstance( |
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jpeg, |
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0, |
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jpeg.length, |
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true |
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).decodeRegion(crop, null); |
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ByteArrayOutputStream out = new ByteArrayOutputStream(); |
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bitmap.compress(Bitmap.CompressFormat.JPEG, jpegCompression, out); |
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this.croppedJpeg = out.toByteArray(); |
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} catch (IOException e) { |
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Log.e("CameraKit", e.toString()); |
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} |
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} |
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private static Rect getCrop(int currentWidth, int currentHeight, AspectRatio targetRatio) { |
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AspectRatio currentRatio = AspectRatio.of(currentWidth, currentHeight); |
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Rect crop; |
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if (currentRatio.toFloat() > targetRatio.toFloat()) { |
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int width = (int) (currentHeight * targetRatio.toFloat()); |
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int widthOffset = (currentWidth - width) / 2; |
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crop = new Rect(widthOffset, 0, currentWidth - widthOffset, currentHeight); |
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} else { |
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int height = (int) (currentWidth * targetRatio.inverse().toFloat()); |
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int heightOffset = (currentHeight - height) / 2; |
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crop = new Rect(0, heightOffset, currentWidth, currentHeight - heightOffset); |
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} |
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return crop; |
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} |
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public byte[] getJpeg() { |
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return croppedJpeg; |
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} |
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} |
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@ -1,39 +0,0 @@ |
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package com.flurgle.camerakit; |
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import java.util.HashSet; |
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import java.util.List; |
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import java.util.Set; |
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import java.util.TreeSet; |
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public class CommonAspectRatioFilter { |
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private List<Size> mPreviewSizes; |
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private List<Size> mCaptureSizes; |
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public CommonAspectRatioFilter(List<Size> previewSizes, List<Size> captureSizes) { |
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this.mPreviewSizes = previewSizes; |
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this.mCaptureSizes = captureSizes; |
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} |
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public TreeSet<AspectRatio> filter() { |
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Set<AspectRatio> previewAspectRatios = new HashSet<>(); |
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for (Size size : mPreviewSizes) { |
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previewAspectRatios.add(AspectRatio.of(size.getWidth(), size.getHeight())); |
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} |
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Set<AspectRatio> captureAspectRatios = new HashSet<>(); |
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for (Size size : mCaptureSizes) { |
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captureAspectRatios.add(AspectRatio.of(size.getWidth(), size.getHeight())); |
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} |
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TreeSet<AspectRatio> output = new TreeSet<>(); |
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for (AspectRatio aspectRatio : previewAspectRatios) { |
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if (captureAspectRatios.contains(aspectRatio)) { |
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output.add(aspectRatio); |
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} |
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} |
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return output; |
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} |
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} |
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@ -0,0 +1,53 @@ |
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package com.flurgle.camerakit; |
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import android.graphics.Bitmap; |
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import android.graphics.BitmapRegionDecoder; |
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import android.graphics.Rect; |
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import android.graphics.YuvImage; |
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import android.util.Log; |
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import java.io.ByteArrayOutputStream; |
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import java.io.IOException; |
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public class CropHelper { |
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// TODO test this. How is YuvImage? Does it come already well rotated?
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public static byte[] cropToJpeg(YuvImage yuv, AspectRatio targetRatio, int jpegCompression) { |
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Rect crop = computeCrop(yuv.getWidth(), yuv.getHeight(), targetRatio); |
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ByteArrayOutputStream out = new ByteArrayOutputStream(); |
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yuv.compressToJpeg(crop, jpegCompression, out); |
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return out.toByteArray(); |
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} |
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// This reads a rotated Bitmap thanks to CameraUtils. Then crops and returns a byte array.
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// In doing so, EXIF data is deleted.
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public static byte[] cropToJpeg(byte[] jpeg, AspectRatio targetRatio, int jpegCompression) { |
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Bitmap image = CameraUtils.decodeBitmap(jpeg); |
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Log.e("CropHelper", "decoded image has width="+image.getWidth()+", height="+image.getHeight()); |
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Rect cropRect = computeCrop(image.getWidth(), image.getHeight(), targetRatio); |
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Bitmap crop = Bitmap.createBitmap(image, cropRect.left, cropRect.top, cropRect.width(), cropRect.height()); |
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image.recycle(); |
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ByteArrayOutputStream out = new ByteArrayOutputStream(); |
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crop.compress(Bitmap.CompressFormat.JPEG, jpegCompression, out); |
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return out.toByteArray(); |
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} |
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private static Rect computeCrop(int currentWidth, int currentHeight, AspectRatio targetRatio) { |
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AspectRatio currentRatio = AspectRatio.of(currentWidth, currentHeight); |
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int x, y, width, height; |
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if (currentRatio.toFloat() > targetRatio.toFloat()) { |
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height = currentHeight; |
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width = (int) (height * targetRatio.toFloat()); |
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y = 0; |
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x = (currentWidth - width) / 2; |
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} else { |
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width = currentWidth; |
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height = (int) (width * targetRatio.inverse().toFloat()); |
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y = (currentHeight - height) / 2; |
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x = 0; |
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} |
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return new Rect(x, y, x+width, y+height); |
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} |
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} |
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