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Unified Diff: media/base/android/java/src/org/chromium/media/VideoCaptureFactory.java

Issue 1710373002: Revert Move VideoCapture* files from media/base/android/... to media/capture/video/android/java/... (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 10 months ago
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Index: media/base/android/java/src/org/chromium/media/VideoCaptureFactory.java
diff --git a/media/base/android/java/src/org/chromium/media/VideoCaptureFactory.java b/media/base/android/java/src/org/chromium/media/VideoCaptureFactory.java
new file mode 100644
index 0000000000000000000000000000000000000000..7c70c9d072be100c85f1f9c69d44951707bd1fe5
--- /dev/null
+++ b/media/base/android/java/src/org/chromium/media/VideoCaptureFactory.java
@@ -0,0 +1,172 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.media;
+
+import android.Manifest;
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.os.Build;
+
+import org.chromium.base.Log;
+import org.chromium.base.annotations.CalledByNative;
+import org.chromium.base.annotations.JNINamespace;
+
+/**
+ * This class implements a factory of Android Video Capture objects for Chrome.
+ * The static createVideoCapture() returns either a "normal" VideoCaptureAndroid
+ * or a "special" VideoCaptureTango. Cameras are identified by |id|, where Tango
+ * cameras have |id| above the standard ones. Video Capture objects allocated
+ * via createVideoCapture() are explicitly owned by the caller.
+ * ChromiumCameraInfo is an internal class with some static methods needed from
+ * the rest of the class to manipulate the |id|s of normal and special devices.
+ **/
+@JNINamespace("media")
+@SuppressWarnings("deprecation")
+class VideoCaptureFactory {
+
+ // Internal class to encapsulate camera device id manipulations.
+ static class ChromiumCameraInfo {
+ // Special devices have more cameras than usual. Those devices are
+ // identified by model & device. Currently only the Tango is supported.
+ // Note that these devices have no Camera.CameraInfo.
+ private static final String[][] SPECIAL_DEVICE_LIST = {
+ {"Peanut", "peanut"},
+ };
+ private static int sNumberOfSystemCameras = -1;
+ private static final String TAG = "cr.media";
+
+ private static boolean isSpecialDevice() {
+ for (String[] device : SPECIAL_DEVICE_LIST) {
+ if (device[0].contentEquals(android.os.Build.MODEL)
+ && device[1].contentEquals(android.os.Build.DEVICE)) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ private static boolean isSpecialCamera(int id) {
+ return id >= sNumberOfSystemCameras;
+ }
+
+ private static int toSpecialCameraId(int id) {
+ assert isSpecialCamera(id);
+ return id - sNumberOfSystemCameras;
+ }
+
+ private static int getNumberOfCameras(Context appContext) {
+ if (sNumberOfSystemCameras == -1) {
+ // getNumberOfCameras() would not fail due to lack of permission, but the
+ // following operations on camera would. "No permission" isn't a fatal
+ // error in WebView, specially for those applications which have no purpose
+ // to use a camera, but "load page" requires it. So, output a warning log
+ // and carry on pretending the system has no camera(s). This optimization
+ // applies only to pre-M on Android because that is when runtime permissions
+ // were introduced.
+ if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M
+ && appContext.getPackageManager().checkPermission(
+ Manifest.permission.CAMERA, appContext.getPackageName())
+ != PackageManager.PERMISSION_GRANTED) {
+ sNumberOfSystemCameras = 0;
+ Log.w(TAG, "Missing android.permission.CAMERA permission, "
+ + "no system camera available.");
+ } else {
+ if (isLReleaseOrLater()) {
+ sNumberOfSystemCameras =
+ VideoCaptureCamera2.getNumberOfCameras(appContext);
+ } else {
+ sNumberOfSystemCameras = VideoCaptureAndroid.getNumberOfCameras();
+ if (isSpecialDevice()) {
+ Log.d(TAG, "Special device: %s", android.os.Build.MODEL);
+ sNumberOfSystemCameras += VideoCaptureTango.numberOfCameras();
+ }
+ }
+ }
+ }
+ return sNumberOfSystemCameras;
+ }
+ }
+
+ private static boolean isLReleaseOrLater() {
+ return Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP;
+ }
+
+ // Factory methods.
+ @CalledByNative
+ static VideoCapture createVideoCapture(
+ Context context, int id, long nativeVideoCaptureDeviceAndroid) {
+ if (isLReleaseOrLater() && !VideoCaptureCamera2.isLegacyDevice(context, id)) {
+ return new VideoCaptureCamera2(context,
+ id,
+ nativeVideoCaptureDeviceAndroid);
+ }
+ if (!ChromiumCameraInfo.isSpecialCamera(id)) {
+ return new VideoCaptureAndroid(context,
+ id,
+ nativeVideoCaptureDeviceAndroid);
+ }
+ return new VideoCaptureTango(context,
+ ChromiumCameraInfo.toSpecialCameraId(id),
+ nativeVideoCaptureDeviceAndroid);
+ }
+
+ @CalledByNative
+ static int getNumberOfCameras(Context appContext) {
+ return ChromiumCameraInfo.getNumberOfCameras(appContext);
+ }
+
+ @CalledByNative
+ static int getCaptureApiType(int id, Context appContext) {
+ if (isLReleaseOrLater()) {
+ return VideoCaptureCamera2.getCaptureApiType(id, appContext);
+ } else if (ChromiumCameraInfo.isSpecialCamera(id)) {
+ return VideoCaptureTango.getCaptureApiType(
+ ChromiumCameraInfo.toSpecialCameraId(id));
+ } else {
+ return VideoCaptureAndroid.getCaptureApiType(id);
+ }
+ }
+
+ @CalledByNative
+ static String getDeviceName(int id, Context appContext) {
+ if (isLReleaseOrLater() && !VideoCaptureCamera2.isLegacyDevice(appContext, id)) {
+ return VideoCaptureCamera2.getName(id, appContext);
+ }
+ return (ChromiumCameraInfo.isSpecialCamera(id))
+ ? VideoCaptureTango.getName(ChromiumCameraInfo.toSpecialCameraId(id))
+ : VideoCaptureAndroid.getName(id);
+ }
+
+ @CalledByNative
+ static VideoCaptureFormat[] getDeviceSupportedFormats(Context appContext, int id) {
+ if (isLReleaseOrLater() && !VideoCaptureCamera2.isLegacyDevice(appContext, id)) {
+ return VideoCaptureCamera2.getDeviceSupportedFormats(appContext, id);
+ }
+ return ChromiumCameraInfo.isSpecialCamera(id)
+ ? VideoCaptureTango.getDeviceSupportedFormats(
+ ChromiumCameraInfo.toSpecialCameraId(id))
+ : VideoCaptureAndroid.getDeviceSupportedFormats(id);
+ }
+
+ @CalledByNative
+ static int getCaptureFormatWidth(VideoCaptureFormat format) {
+ return format.getWidth();
+ }
+
+ @CalledByNative
+ static int getCaptureFormatHeight(VideoCaptureFormat format) {
+ return format.getHeight();
+ }
+
+ @CalledByNative
+ static int getCaptureFormatFramerate(VideoCaptureFormat format) {
+ return format.getFramerate();
+ }
+
+ @CalledByNative
+ static int getCaptureFormatPixelFormat(VideoCaptureFormat format) {
+ return format.getPixelFormat();
+ }
+}

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