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Unified Diff: webrtc/api/android/java/src/org/webrtc/Camera2Enumerator.java

Issue 2547483003: Move /webrtc/api/android files to /webrtc/sdk/android (Closed)
Patch Set: Move to api folder under Android instead of src Created 4 years ago
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Index: webrtc/api/android/java/src/org/webrtc/Camera2Enumerator.java
diff --git a/webrtc/api/android/java/src/org/webrtc/Camera2Enumerator.java b/webrtc/api/android/java/src/org/webrtc/Camera2Enumerator.java
deleted file mode 100644
index fa5c55df8aa3dacae5689c1f685b8b90269cc102..0000000000000000000000000000000000000000
--- a/webrtc/api/android/java/src/org/webrtc/Camera2Enumerator.java
+++ /dev/null
@@ -1,248 +0,0 @@
-/*
- * Copyright 2015 The WebRTC project authors. All Rights Reserved.
- *
- * Use of this source code is governed by a BSD-style license
- * that can be found in the LICENSE file in the root of the source
- * tree. An additional intellectual property rights grant can be found
- * in the file PATENTS. All contributing project authors may
- * be found in the AUTHORS file in the root of the source tree.
- */
-
-package org.webrtc;
-
-import org.webrtc.CameraEnumerationAndroid.CaptureFormat;
-
-import android.annotation.TargetApi;
-import android.content.Context;
-import android.graphics.Rect;
-import android.graphics.SurfaceTexture;
-import android.hardware.camera2.CameraCharacteristics;
-import android.hardware.camera2.CameraManager;
-import android.hardware.camera2.CameraMetadata;
-import android.hardware.camera2.params.StreamConfigurationMap;
-import android.os.Build;
-import android.os.SystemClock;
-import android.util.AndroidException;
-import android.util.Range;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
-@TargetApi(21)
-public class Camera2Enumerator implements CameraEnumerator {
- private final static String TAG = "Camera2Enumerator";
- private final static double NANO_SECONDS_PER_SECOND = 1.0e9;
-
- // Each entry contains the supported formats for a given camera index. The formats are enumerated
- // lazily in getSupportedFormats(), and cached for future reference.
- private static final Map<String, List<CaptureFormat>> cachedSupportedFormats =
- new HashMap<String, List<CaptureFormat>>();
-
- final Context context;
- final CameraManager cameraManager;
-
- public Camera2Enumerator(Context context) {
- this.context = context;
- this.cameraManager = (CameraManager) context.getSystemService(Context.CAMERA_SERVICE);
- }
-
- @Override
- public String[] getDeviceNames() {
- try {
- return cameraManager.getCameraIdList();
- // On Android OS pre 4.4.2, a class will not load because of VerifyError if it contains a
- // catch statement with an Exception from a newer API, even if the code is never executed.
- // https://code.google.com/p/android/issues/detail?id=209129
- } catch (/* CameraAccessException */ AndroidException e) {
- Logging.e(TAG, "Camera access exception: " + e);
- return new String[] {};
- }
- }
-
- @Override
- public boolean isFrontFacing(String deviceName) {
- CameraCharacteristics characteristics = getCameraCharacteristics(deviceName);
-
- return characteristics != null
- && characteristics.get(CameraCharacteristics.LENS_FACING)
- == CameraMetadata.LENS_FACING_FRONT;
- }
-
- @Override
- public boolean isBackFacing(String deviceName) {
- CameraCharacteristics characteristics = getCameraCharacteristics(deviceName);
-
- return characteristics != null
- && characteristics.get(CameraCharacteristics.LENS_FACING)
- == CameraMetadata.LENS_FACING_BACK;
- }
-
- @Override
- public List<CaptureFormat> getSupportedFormats(String deviceName) {
- return getSupportedFormats(context, deviceName);
- }
-
- @Override
- public CameraVideoCapturer createCapturer(
- String deviceName, CameraVideoCapturer.CameraEventsHandler eventsHandler) {
- return new Camera2Capturer(context, deviceName, eventsHandler);
- }
-
- private CameraCharacteristics getCameraCharacteristics(String deviceName) {
- try {
- return cameraManager.getCameraCharacteristics(deviceName);
- // On Android OS pre 4.4.2, a class will not load because of VerifyError if it contains a
- // catch statement with an Exception from a newer API, even if the code is never executed.
- // https://code.google.com/p/android/issues/detail?id=209129
- } catch (/* CameraAccessException */ AndroidException e) {
- Logging.e(TAG, "Camera access exception: " + e);
- return null;
- }
- }
-
- /**
- * Checks if API is supported and all cameras have better than legacy support.
- */
- public static boolean isSupported(Context context) {
- if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
- return false;
- }
-
- CameraManager cameraManager = (CameraManager) context.getSystemService(Context.CAMERA_SERVICE);
- try {
- String[] cameraIds = cameraManager.getCameraIdList();
- for (String id : cameraIds) {
- CameraCharacteristics characteristics = cameraManager.getCameraCharacteristics(id);
- if (characteristics.get(CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL)
- == CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY) {
- return false;
- }
- }
- // On Android OS pre 4.4.2, a class will not load because of VerifyError if it contains a
- // catch statement with an Exception from a newer API, even if the code is never executed.
- // https://code.google.com/p/android/issues/detail?id=209129
- } catch (/* CameraAccessException */ AndroidException e) {
- Logging.e(TAG, "Camera access exception: " + e);
- return false;
- }
- return true;
- }
-
- static int getFpsUnitFactor(Range<Integer>[] fpsRanges) {
- if (fpsRanges.length == 0) {
- return 1000;
- }
- return fpsRanges[0].getUpper() < 1000 ? 1000 : 1;
- }
-
- static List<Size> getSupportedSizes(CameraCharacteristics cameraCharacteristics) {
- final StreamConfigurationMap streamMap =
- cameraCharacteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
- final int supportLevel =
- cameraCharacteristics.get(CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL);
-
- final android.util.Size[] nativeSizes = streamMap.getOutputSizes(SurfaceTexture.class);
- final List<Size> sizes = convertSizes(nativeSizes);
-
- // Video may be stretched pre LMR1 on legacy implementations.
- // Filter out formats that have different aspect ratio than the sensor array.
- if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP_MR1
- && supportLevel == CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY) {
- final Rect activeArraySize =
- cameraCharacteristics.get(CameraCharacteristics.SENSOR_INFO_ACTIVE_ARRAY_SIZE);
- final ArrayList<Size> filteredSizes = new ArrayList<Size>();
-
- for (Size size : sizes) {
- if (activeArraySize.width() * size.height == activeArraySize.height() * size.width) {
- filteredSizes.add(size);
- }
- }
-
- return filteredSizes;
- } else {
- return sizes;
- }
- }
-
- static List<CaptureFormat> getSupportedFormats(Context context, String cameraId) {
- return getSupportedFormats(
- (CameraManager) context.getSystemService(Context.CAMERA_SERVICE), cameraId);
- }
-
- static List<CaptureFormat> getSupportedFormats(CameraManager cameraManager, String cameraId) {
- synchronized (cachedSupportedFormats) {
- if (cachedSupportedFormats.containsKey(cameraId)) {
- return cachedSupportedFormats.get(cameraId);
- }
-
- Logging.d(TAG, "Get supported formats for camera index " + cameraId + ".");
- final long startTimeMs = SystemClock.elapsedRealtime();
-
- final CameraCharacteristics cameraCharacteristics;
- try {
- cameraCharacteristics = cameraManager.getCameraCharacteristics(cameraId);
- } catch (Exception ex) {
- Logging.e(TAG, "getCameraCharacteristics(): " + ex);
- return new ArrayList<CaptureFormat>();
- }
-
- final StreamConfigurationMap streamMap =
- cameraCharacteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
-
- Range<Integer>[] fpsRanges =
- cameraCharacteristics.get(CameraCharacteristics.CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES);
- List<CaptureFormat.FramerateRange> framerateRanges =
- convertFramerates(fpsRanges, getFpsUnitFactor(fpsRanges));
- List<Size> sizes = getSupportedSizes(cameraCharacteristics);
-
- int defaultMaxFps = 0;
- for (CaptureFormat.FramerateRange framerateRange : framerateRanges) {
- defaultMaxFps = Math.max(defaultMaxFps, framerateRange.max);
- }
-
- final List<CaptureFormat> formatList = new ArrayList<CaptureFormat>();
- for (Size size : sizes) {
- long minFrameDurationNs = 0;
- try {
- minFrameDurationNs = streamMap.getOutputMinFrameDuration(
- SurfaceTexture.class, new android.util.Size(size.width, size.height));
- } catch (Exception e) {
- // getOutputMinFrameDuration() is not supported on all devices. Ignore silently.
- }
- final int maxFps = (minFrameDurationNs == 0)
- ? defaultMaxFps
- : (int) Math.round(NANO_SECONDS_PER_SECOND / minFrameDurationNs) * 1000;
- formatList.add(new CaptureFormat(size.width, size.height, 0, maxFps));
- Logging.d(TAG, "Format: " + size.width + "x" + size.height + "@" + maxFps);
- }
-
- cachedSupportedFormats.put(cameraId, formatList);
- final long endTimeMs = SystemClock.elapsedRealtime();
- Logging.d(TAG, "Get supported formats for camera index " + cameraId + " done."
- + " Time spent: " + (endTimeMs - startTimeMs) + " ms.");
- return formatList;
- }
- }
-
- // Convert from android.util.Size to Size.
- private static List<Size> convertSizes(android.util.Size[] cameraSizes) {
- final List<Size> sizes = new ArrayList<Size>();
- for (android.util.Size size : cameraSizes) {
- sizes.add(new Size(size.getWidth(), size.getHeight()));
- }
- return sizes;
- }
-
- // Convert from android.util.Range<Integer> to CaptureFormat.FramerateRange.
- static List<CaptureFormat.FramerateRange> convertFramerates(
- Range<Integer>[] arrayRanges, int unitFactor) {
- final List<CaptureFormat.FramerateRange> ranges = new ArrayList<CaptureFormat.FramerateRange>();
- for (Range<Integer> range : arrayRanges) {
- ranges.add(new CaptureFormat.FramerateRange(
- range.getLower() * unitFactor, range.getUpper() * unitFactor));
- }
- return ranges;
- }
-}

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