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Unified Diff: talk/app/webrtc/java/android/org/webrtc/CameraEnumerationAndroid.java

Issue 1610243002: Move talk/app/webrtc to webrtc/api (Closed) Base URL: https://chromium.googlesource.com/external/webrtc.git@master
Patch Set: Removed processing of api.gyp for Chromium builds Created 4 years, 10 months ago
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Index: talk/app/webrtc/java/android/org/webrtc/CameraEnumerationAndroid.java
diff --git a/talk/app/webrtc/java/android/org/webrtc/CameraEnumerationAndroid.java b/talk/app/webrtc/java/android/org/webrtc/CameraEnumerationAndroid.java
deleted file mode 100644
index 5f68c3759eb2e9c7f2632e7d622402355ca568ca..0000000000000000000000000000000000000000
--- a/talk/app/webrtc/java/android/org/webrtc/CameraEnumerationAndroid.java
+++ /dev/null
@@ -1,227 +0,0 @@
-/*
- * libjingle
- * Copyright 2015 Google Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-package org.webrtc;
-
-import static java.lang.Math.abs;
-import static java.lang.Math.ceil;
-import android.graphics.ImageFormat;
-
-import org.json.JSONArray;
-import org.json.JSONException;
-import org.json.JSONObject;
-
-import org.webrtc.Logging;
-
-import java.util.Collections;
-import java.util.Comparator;
-import java.util.List;
-
-@SuppressWarnings("deprecation")
-public class CameraEnumerationAndroid {
- private final static String TAG = "CameraEnumerationAndroid";
- // Synchronized on |CameraEnumerationAndroid.this|.
- private static Enumerator enumerator = new CameraEnumerator();
-
- public interface Enumerator {
- /**
- * Returns a list of supported CaptureFormats for the camera with index |cameraId|.
- */
- List<CaptureFormat> getSupportedFormats(int cameraId);
- }
-
- public static synchronized void setEnumerator(Enumerator enumerator) {
- CameraEnumerationAndroid.enumerator = enumerator;
- }
-
- public static synchronized List<CaptureFormat> getSupportedFormats(int cameraId) {
- return enumerator.getSupportedFormats(cameraId);
- }
-
- public static class CaptureFormat {
- public final int width;
- public final int height;
- public final int maxFramerate;
- public final int minFramerate;
- // TODO(hbos): If VideoCapturerAndroid.startCapture is updated to support
- // other image formats then this needs to be updated and
- // VideoCapturerAndroid.getSupportedFormats need to return CaptureFormats of
- // all imageFormats.
- public final int imageFormat = ImageFormat.NV21;
-
- public CaptureFormat(int width, int height, int minFramerate,
- int maxFramerate) {
- this.width = width;
- this.height = height;
- this.minFramerate = minFramerate;
- this.maxFramerate = maxFramerate;
- }
-
- // Calculates the frame size of this capture format.
- public int frameSize() {
- return frameSize(width, height, imageFormat);
- }
-
- // Calculates the frame size of the specified image format. Currently only
- // supporting ImageFormat.NV21.
- // The size is width * height * number of bytes per pixel.
- // http://developer.android.com/reference/android/hardware/Camera.html#addCallbackBuffer(byte[])
- public static int frameSize(int width, int height, int imageFormat) {
- if (imageFormat != ImageFormat.NV21) {
- throw new UnsupportedOperationException("Don't know how to calculate "
- + "the frame size of non-NV21 image formats.");
- }
- return (width * height * ImageFormat.getBitsPerPixel(imageFormat)) / 8;
- }
-
- @Override
- public String toString() {
- return width + "x" + height + "@[" + minFramerate + ":" + maxFramerate + "]";
- }
-
- public boolean isSameFormat(final CaptureFormat that) {
- if (that == null) {
- return false;
- }
- return width == that.width && height == that.height && maxFramerate == that.maxFramerate
- && minFramerate == that.minFramerate;
- }
- }
-
- // Returns device names that can be used to create a new VideoCapturerAndroid.
- public static String[] getDeviceNames() {
- String[] names = new String[android.hardware.Camera.getNumberOfCameras()];
- for (int i = 0; i < android.hardware.Camera.getNumberOfCameras(); ++i) {
- names[i] = getDeviceName(i);
- }
- return names;
- }
-
- // Returns number of cameras on device.
- public static int getDeviceCount() {
- return android.hardware.Camera.getNumberOfCameras();
- }
-
- // Returns the name of the camera with camera index. Returns null if the
- // camera can not be used.
- public static String getDeviceName(int index) {
- android.hardware.Camera.CameraInfo info = new android.hardware.Camera.CameraInfo();
- try {
- android.hardware.Camera.getCameraInfo(index, info);
- } catch (Exception e) {
- Logging.e(TAG, "getCameraInfo failed on index " + index,e);
- return null;
- }
-
- String facing =
- (info.facing == android.hardware.Camera.CameraInfo.CAMERA_FACING_FRONT) ? "front" : "back";
- return "Camera " + index + ", Facing " + facing
- + ", Orientation " + info.orientation;
- }
-
- // Returns the name of the front facing camera. Returns null if the
- // camera can not be used or does not exist.
- public static String getNameOfFrontFacingDevice() {
- return getNameOfDevice(android.hardware.Camera.CameraInfo.CAMERA_FACING_FRONT);
- }
-
- // Returns the name of the back facing camera. Returns null if the
- // camera can not be used or does not exist.
- public static String getNameOfBackFacingDevice() {
- return getNameOfDevice(android.hardware.Camera.CameraInfo.CAMERA_FACING_BACK);
- }
-
- public static String getSupportedFormatsAsJson(int id) throws JSONException {
- List<CaptureFormat> formats = getSupportedFormats(id);
- JSONArray json_formats = new JSONArray();
- for (CaptureFormat format : formats) {
- JSONObject json_format = new JSONObject();
- json_format.put("width", format.width);
- json_format.put("height", format.height);
- json_format.put("framerate", (format.maxFramerate + 999) / 1000);
- json_formats.put(json_format);
- }
- Logging.d(TAG, "Supported formats for camera " + id + ": "
- + json_formats.toString(2));
- return json_formats.toString();
- }
-
- // Helper class for finding the closest supported format for the two functions below.
- private static abstract class ClosestComparator<T> implements Comparator<T> {
- // Difference between supported and requested parameter.
- abstract int diff(T supportedParameter);
-
- @Override
- public int compare(T t1, T t2) {
- return diff(t1) - diff(t2);
- }
- }
-
- public static int[] getFramerateRange(android.hardware.Camera.Parameters parameters,
- final int framerate) {
- List<int[]> listFpsRange = parameters.getSupportedPreviewFpsRange();
- if (listFpsRange.isEmpty()) {
- Logging.w(TAG, "No supported preview fps range");
- return new int[]{0, 0};
- }
- return Collections.min(listFpsRange,
- new ClosestComparator<int[]>() {
- @Override int diff(int[] range) {
- final int maxFpsWeight = 10;
- return range[android.hardware.Camera.Parameters.PREVIEW_FPS_MIN_INDEX]
- + maxFpsWeight * abs(framerate
- - range[android.hardware.Camera.Parameters.PREVIEW_FPS_MAX_INDEX]);
- }
- });
- }
-
- public static android.hardware.Camera.Size getClosestSupportedSize(
- List<android.hardware.Camera.Size> supportedSizes, final int requestedWidth,
- final int requestedHeight) {
- return Collections.min(supportedSizes,
- new ClosestComparator<android.hardware.Camera.Size>() {
- @Override int diff(android.hardware.Camera.Size size) {
- return abs(requestedWidth - size.width) + abs(requestedHeight - size.height);
- }
- });
- }
-
- private static String getNameOfDevice(int facing) {
- final android.hardware.Camera.CameraInfo info = new android.hardware.Camera.CameraInfo();
- for (int i = 0; i < android.hardware.Camera.getNumberOfCameras(); ++i) {
- try {
- android.hardware.Camera.getCameraInfo(i, info);
- if (info.facing == facing) {
- return getDeviceName(i);
- }
- } catch (Exception e) {
- Logging.e(TAG, "getCameraInfo() failed on index " + i, e);
- }
- }
- return null;
- }
-}

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