Revert Move VideoCapture* files from media/base/android/... to media/capture/video/android/java/...

media/base/android/java/src/org/chromium/media/VideoCaptureTango.java

Index: media/base/android/java/src/org/chromium/media/VideoCaptureTango.java
diff --git a/media/base/android/java/src/org/chromium/media/VideoCaptureTango.java b/media/base/android/java/src/org/chromium/media/VideoCaptureTango.java
new file mode 100644
index 0000000000000000000000000000000000000000..c85cf0f7e32626431e93e6aa35cca0a88379e0d2
--- /dev/null
+++ b/media/base/android/java/src/org/chromium/media/VideoCaptureTango.java
@@ -0,0 +1,197 @@
+// 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.content.Context;
+import android.graphics.ImageFormat;
+
+import org.chromium.base.Log;
+
+import java.nio.ByteBuffer;
+import java.util.ArrayList;
+import java.util.Arrays;
+
+/**
+ * This class extends the VideoCapture base class for manipulating a Tango
+ * device's cameras, namely the associated Depth (z-Buffer), Fisheye and back-
+ * facing 4MP video capture devices. These devices are differentiated via the
+ * |id| passed on constructor, according to the index correspondence in
+ * |s_CAM_PARAMS|; all devices |id| are index 0 towards the parent VideoCapture.
+ **/
+@SuppressWarnings("deprecation")
+public class VideoCaptureTango extends VideoCaptureCamera {
+
+    private static class CamParams {
+        final int mId;
+        final String mName;
+        final int mWidth;
+        final int mHeight;
+
+        CamParams(int id, String name, int width, int height) {
+            mId = id;
+            mName = name;
+            mWidth = width;
+            mHeight = height;
+        }
+    }
+
+    private ByteBuffer mFrameBuffer = null;
+    private final int mTangoCameraId;
+    // The indexes must coincide with |CAM_PARAMS| defined below.
+    private static final int DEPTH_CAMERA_ID = 0;
+    private static final int FISHEYE_CAMERA_ID = 1;
+    private static final int FOURMP_CAMERA_ID = 2;
+    private static final CamParams CAM_PARAMS[] = {
+            new CamParams(DEPTH_CAMERA_ID, "depth", 320, 240),
+            new CamParams(FISHEYE_CAMERA_ID, "fisheye", 640, 480),
+            new CamParams(FOURMP_CAMERA_ID, "4MP", 1280, 720) };
+
+    // SuperFrame size definitions. Note that total size is the amount of lines
+    // multiplied by 3/2 due to Chroma components following.
+    private static final int SF_WIDTH = 1280;
+    private static final int SF_HEIGHT = 1168;
+    private static final int SF_FULL_HEIGHT = SF_HEIGHT * 3 / 2;
+    private static final int SF_LINES_HEADER = 16;
+    private static final int SF_LINES_FISHEYE = 240;
+    private static final int SF_LINES_RESERVED = 80;  // Spec says 96.
+    private static final int SF_LINES_DEPTH = 60;
+    private static final int SF_LINES_DEPTH_PADDED = 112;  // Spec says 96.
+    private static final int SF_LINES_BIGIMAGE = 720;
+    private static final int SF_OFFSET_4MP_CHROMA = 112;
+
+    private static final byte CHROMA_ZERO_LEVEL = 127;
+    private static final String TAG = "cr.media";
+
+    static int numberOfCameras() {
+        return CAM_PARAMS.length;
+    }
+
+    static int getCaptureApiType(int index) {
+        if (index >= CAM_PARAMS.length) {
+            return CaptureApiType.API1;
+        }
+        return CaptureApiType.TANGO;
+    }
+
+    static String getName(int index) {
+        if (index >= CAM_PARAMS.length) return "";
+        return CAM_PARAMS[index].mName;
+    }
+
+    static VideoCaptureFormat[] getDeviceSupportedFormats(int id) {
+        ArrayList<VideoCaptureFormat> formatList = new ArrayList<VideoCaptureFormat>();
+        if (id == DEPTH_CAMERA_ID) {
+            formatList.add(new VideoCaptureFormat(320, 180, 5, ImageFormat.YV12));
+        } else if (id == FISHEYE_CAMERA_ID) {
+            formatList.add(new VideoCaptureFormat(640, 480, 30, ImageFormat.YV12));
+        } else if (id == FOURMP_CAMERA_ID) {
+            formatList.add(new VideoCaptureFormat(1280, 720, 20, ImageFormat.YV12));
+        }
+        return formatList.toArray(new VideoCaptureFormat[formatList.size()]);
+    }
+
+    VideoCaptureTango(Context context,
+                      int id,
+                      long nativeVideoCaptureDeviceAndroid) {
+        // All Tango cameras are like the back facing one for the generic VideoCapture code.
+        super(context, 0, nativeVideoCaptureDeviceAndroid);
+        mTangoCameraId = id;
+    }
+
+    @Override
+    protected void setCaptureParameters(
+            int width,
+            int height,
+            int frameRate,
+            android.hardware.Camera.Parameters cameraParameters) {
+        mCaptureFormat = new VideoCaptureFormat(CAM_PARAMS[mTangoCameraId].mWidth,
+                                           CAM_PARAMS[mTangoCameraId].mHeight,
+                                           frameRate,
+                                           ImageFormat.YV12);
+        // Connect Tango SuperFrame mode. Available sf modes are "all",
+        // "big-rgb", "small-rgb", "depth", "ir".
+        cameraParameters.set("sf-mode", "all");
+    }
+
+    @Override
+    protected void allocateBuffers() {
+        mFrameBuffer = ByteBuffer.allocateDirect(
+                mCaptureFormat.mWidth * mCaptureFormat.mHeight * 3 / 2);
+        // Prefill Chroma to their zero-equivalent for the cameras that only
+        // provide Luma component.
+        Arrays.fill(mFrameBuffer.array(), CHROMA_ZERO_LEVEL);
+    }
+
+    @Override
+    protected void setPreviewCallback(android.hardware.Camera.PreviewCallback cb) {
+        mCamera.setPreviewCallback(cb);
+    }
+
+    @Override
+    public void onPreviewFrame(byte[] data, android.hardware.Camera camera) {
+        mPreviewBufferLock.lock();
+        try {
+            if (!mIsRunning) return;
+            if (data.length == SF_WIDTH * SF_FULL_HEIGHT) {
+                if (mTangoCameraId == DEPTH_CAMERA_ID) {
+                    int sizeY = SF_WIDTH * SF_LINES_DEPTH;
+                    int startY =
+                            SF_WIDTH * (SF_LINES_HEADER + SF_LINES_FISHEYE + SF_LINES_RESERVED);
+                    // Depth is composed of 16b samples in which only 12b are
+                    // used. Throw away lowest 4 resolution bits. Android
+                    // platforms are big endian, LSB in lowest address. In this
+                    // case Chroma components are unused. No need to write them
+                    // explicitly since they're filled to 128 on creation.
+                    byte depthsample;
+                    for (int j = startY; j < startY + 2 * sizeY; j += 2) {
+                        depthsample = (byte) ((data[j + 1] << 4) | ((data[j] & 0xF0) >> 4));
+                        mFrameBuffer.put(depthsample);
+                    }
+                    for (int j = 0; j < mCaptureFormat.mWidth * mCaptureFormat.mHeight - sizeY;
+                            ++j) {
+                        mFrameBuffer.put((byte) 0);
+                    }
+                } else if (mTangoCameraId == FISHEYE_CAMERA_ID) {
+                    int sizeY = SF_WIDTH * SF_LINES_FISHEYE;
+                    int startY = SF_WIDTH * SF_LINES_HEADER;
+                    // Fisheye is black and white so Chroma components are unused. No need to write
+                    // them explicitly since they're filled to 128 on creation.
+                    ByteBuffer.wrap(data, startY, sizeY).get(mFrameBuffer.array(), 0, sizeY);
+                } else if (mTangoCameraId == FOURMP_CAMERA_ID) {
+                    int startY = SF_WIDTH * (SF_LINES_HEADER + SF_LINES_FISHEYE
+                                    + SF_LINES_RESERVED + SF_LINES_DEPTH_PADDED);
+                    int sizeY = SF_WIDTH * SF_LINES_BIGIMAGE;
+
+                    // The spec is completely inaccurate on the location, sizes
+                    // and format of these channels.
+                    int startU = SF_WIDTH * (SF_HEIGHT + SF_OFFSET_4MP_CHROMA);
+                    int sizeU = SF_WIDTH * SF_LINES_BIGIMAGE / 4;
+                    int startV = (SF_WIDTH * SF_HEIGHT * 5 / 4) + SF_WIDTH * SF_OFFSET_4MP_CHROMA;
+                    int sizeV = SF_WIDTH * SF_LINES_BIGIMAGE / 4;
+
+                    // Equivalent to the following |for| loop but much faster:
+                    // for (int i = START; i < START + SIZE; ++i)
+                    //     mFrameBuffer.put(data[i]);
+                    ByteBuffer.wrap(data, startY, sizeY)
+                              .get(mFrameBuffer.array(), 0, sizeY);
+                    ByteBuffer.wrap(data, startU, sizeU)
+                              .get(mFrameBuffer.array(), sizeY, sizeU);
+                    ByteBuffer.wrap(data, startV, sizeV)
+                              .get(mFrameBuffer.array(), sizeY + sizeU, sizeV);
+                } else {
+                    Log.e(TAG, "Unknown camera, #id: %d", mTangoCameraId);
+                    return;
+                }
+                mFrameBuffer.rewind();  // Important!
+                nativeOnFrameAvailable(mNativeVideoCaptureDeviceAndroid,
+                                       mFrameBuffer.array(),
+                                       mFrameBuffer.capacity(),
+                                       getCameraRotation());
+            }
+        } finally {
+            mPreviewBufferLock.unlock();
+        }
+    }
+}