diff --git a/camera/CameraParameters2.cpp b/camera/CameraParameters2.cpp
new file mode 100644
index 0000000..378afeb
--- /dev/null
+++ b/camera/CameraParameters2.cpp
@@ -0,0 +1,382 @@
+/*
+**
+** Copyright 2008, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+#define LOG_TAG "CameraParams2"
+// #define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <string.h>
+#include <stdlib.h>
+#include <camera/CameraParameters2.h>
+
+namespace android {
+
+CameraParameters2::CameraParameters2()
+                : mMap()
+{
+}
+
+CameraParameters2::~CameraParameters2()
+{
+}
+
+String8 CameraParameters2::flatten() const
+{
+    String8 flattened("");
+    size_t size = mMap.size();
+
+    for (size_t i = 0; i < size; i++) {
+        String8 k, v;
+        k = mMap.keyAt(i);
+        v = mMap.valueAt(i);
+
+        flattened += k;
+        flattened += "=";
+        flattened += v;
+        if (i != size-1)
+            flattened += ";";
+    }
+
+    ALOGV("%s: Flattened params = %s", __FUNCTION__, flattened.string());
+
+    return flattened;
+}
+
+void CameraParameters2::unflatten(const String8 &params)
+{
+    const char *a = params.string();
+    const char *b;
+
+    mMap.clear();
+
+    for (;;) {
+        // Find the bounds of the key name.
+        b = strchr(a, '=');
+        if (b == 0)
+            break;
+
+        // Create the key string.
+        String8 k(a, (size_t)(b-a));
+
+        // Find the value.
+        a = b+1;
+        b = strchr(a, ';');
+        if (b == 0) {
+            // If there's no semicolon, this is the last item.
+            String8 v(a);
+            mMap.add(k, v);
+            break;
+        }
+
+        String8 v(a, (size_t)(b-a));
+        mMap.add(k, v);
+        a = b+1;
+    }
+}
+
+
+void CameraParameters2::set(const char *key, const char *value)
+{
+    // XXX i think i can do this with strspn()
+    if (strchr(key, '=') || strchr(key, ';')) {
+        //XXX ALOGE("Key \"%s\"contains invalid character (= or ;)", key);
+        return;
+    }
+
+    if (strchr(value, '=') || strchr(value, ';')) {
+        //XXX ALOGE("Value \"%s\"contains invalid character (= or ;)", value);
+        return;
+    }
+
+    // Replacing a value updates the key's order to be the new largest order
+    ssize_t res = mMap.replaceValueFor(String8(key), String8(value));
+    LOG_ALWAYS_FATAL_IF(res < 0, "replaceValueFor(%s,%s) failed", key, value);
+}
+
+void CameraParameters2::set(const char *key, int value)
+{
+    char str[16];
+    sprintf(str, "%d", value);
+    set(key, str);
+}
+
+void CameraParameters2::setFloat(const char *key, float value)
+{
+    char str[16];  // 14 should be enough. We overestimate to be safe.
+    snprintf(str, sizeof(str), "%g", value);
+    set(key, str);
+}
+
+const char *CameraParameters2::get(const char *key) const
+{
+    ssize_t idx = mMap.indexOfKey(String8(key));
+    if (idx < 0) {
+        return NULL;
+    } else {
+        return mMap.valueAt(idx).string();
+    }
+}
+
+int CameraParameters2::getInt(const char *key) const
+{
+    const char *v = get(key);
+    if (v == 0)
+        return -1;
+    return strtol(v, 0, 0);
+}
+
+float CameraParameters2::getFloat(const char *key) const
+{
+    const char *v = get(key);
+    if (v == 0) return -1;
+    return strtof(v, 0);
+}
+
+status_t CameraParameters2::compareSetOrder(const char *key1, const char *key2,
+        int *order) const {
+    if (key1 == NULL) {
+        ALOGE("%s: key1 must not be NULL", __FUNCTION__);
+        return BAD_VALUE;
+    } else if (key2 == NULL) {
+        ALOGE("%s: key2 must not be NULL", __FUNCTION__);
+        return BAD_VALUE;
+    } else if (order == NULL) {
+        ALOGE("%s: order must not be NULL", __FUNCTION__);
+        return BAD_VALUE;
+    }
+
+    ssize_t index1 = mMap.indexOfKey(String8(key1));
+    ssize_t index2 = mMap.indexOfKey(String8(key2));
+    if (index1 < 0) {
+        ALOGW("%s: Key1 (%s) was not set", __FUNCTION__, key1);
+        return NAME_NOT_FOUND;
+    } else if (index2 < 0) {
+        ALOGW("%s: Key2 (%s) was not set", __FUNCTION__, key2);
+        return NAME_NOT_FOUND;
+    }
+
+    *order = (index1 == index2) ? 0  :
+             (index1 < index2)  ? -1 :
+             1;
+
+    return OK;
+}
+
+void CameraParameters2::remove(const char *key)
+{
+    mMap.removeItem(String8(key));
+}
+
+// Parse string like "640x480" or "10000,20000"
+static int parse_pair(const char *str, int *first, int *second, char delim,
+                      char **endptr = NULL)
+{
+    // Find the first integer.
+    char *end;
+    int w = (int)strtol(str, &end, 10);
+    // If a delimeter does not immediately follow, give up.
+    if (*end != delim) {
+        ALOGE("Cannot find delimeter (%c) in str=%s", delim, str);
+        return -1;
+    }
+
+    // Find the second integer, immediately after the delimeter.
+    int h = (int)strtol(end+1, &end, 10);
+
+    *first = w;
+    *second = h;
+
+    if (endptr) {
+        *endptr = end;
+    }
+
+    return 0;
+}
+
+static void parseSizesList(const char *sizesStr, Vector<Size> &sizes)
+{
+    if (sizesStr == 0) {
+        return;
+    }
+
+    char *sizeStartPtr = (char *)sizesStr;
+
+    while (true) {
+        int width, height;
+        int success = parse_pair(sizeStartPtr, &width, &height, 'x',
+                                 &sizeStartPtr);
+        if (success == -1 || (*sizeStartPtr != ',' && *sizeStartPtr != '\0')) {
+            ALOGE("Picture sizes string \"%s\" contains invalid character.", sizesStr);
+            return;
+        }
+        sizes.push(Size(width, height));
+
+        if (*sizeStartPtr == '\0') {
+            return;
+        }
+        sizeStartPtr++;
+    }
+}
+
+void CameraParameters2::setPreviewSize(int width, int height)
+{
+    char str[32];
+    sprintf(str, "%dx%d", width, height);
+    set(CameraParameters::KEY_PREVIEW_SIZE, str);
+}
+
+void CameraParameters2::getPreviewSize(int *width, int *height) const
+{
+    *width = *height = -1;
+    // Get the current string, if it doesn't exist, leave the -1x-1
+    const char *p = get(CameraParameters::KEY_PREVIEW_SIZE);
+    if (p == 0)  return;
+    parse_pair(p, width, height, 'x');
+}
+
+void CameraParameters2::getPreferredPreviewSizeForVideo(int *width, int *height) const
+{
+    *width = *height = -1;
+    const char *p = get(CameraParameters::KEY_PREFERRED_PREVIEW_SIZE_FOR_VIDEO);
+    if (p == 0)  return;
+    parse_pair(p, width, height, 'x');
+}
+
+void CameraParameters2::getSupportedPreviewSizes(Vector<Size> &sizes) const
+{
+    const char *previewSizesStr = get(CameraParameters::KEY_SUPPORTED_PREVIEW_SIZES);
+    parseSizesList(previewSizesStr, sizes);
+}
+
+void CameraParameters2::setVideoSize(int width, int height)
+{
+    char str[32];
+    sprintf(str, "%dx%d", width, height);
+    set(CameraParameters::KEY_VIDEO_SIZE, str);
+}
+
+void CameraParameters2::getVideoSize(int *width, int *height) const
+{
+    *width = *height = -1;
+    const char *p = get(CameraParameters::KEY_VIDEO_SIZE);
+    if (p == 0) return;
+    parse_pair(p, width, height, 'x');
+}
+
+void CameraParameters2::getSupportedVideoSizes(Vector<Size> &sizes) const
+{
+    const char *videoSizesStr = get(CameraParameters::KEY_SUPPORTED_VIDEO_SIZES);
+    parseSizesList(videoSizesStr, sizes);
+}
+
+void CameraParameters2::setPreviewFrameRate(int fps)
+{
+    set(CameraParameters::KEY_PREVIEW_FRAME_RATE, fps);
+}
+
+int CameraParameters2::getPreviewFrameRate() const
+{
+    return getInt(CameraParameters::KEY_PREVIEW_FRAME_RATE);
+}
+
+void CameraParameters2::getPreviewFpsRange(int *min_fps, int *max_fps) const
+{
+    *min_fps = *max_fps = -1;
+    const char *p = get(CameraParameters::KEY_PREVIEW_FPS_RANGE);
+    if (p == 0) return;
+    parse_pair(p, min_fps, max_fps, ',');
+}
+
+void CameraParameters2::setPreviewFpsRange(int min_fps, int max_fps)
+{
+    String8 str = String8::format("%d,%d", min_fps, max_fps);
+    set(CameraParameters::KEY_PREVIEW_FPS_RANGE, str.string());
+}
+
+void CameraParameters2::setPreviewFormat(const char *format)
+{
+    set(CameraParameters::KEY_PREVIEW_FORMAT, format);
+}
+
+const char *CameraParameters2::getPreviewFormat() const
+{
+    return get(CameraParameters::KEY_PREVIEW_FORMAT);
+}
+
+void CameraParameters2::setPictureSize(int width, int height)
+{
+    char str[32];
+    sprintf(str, "%dx%d", width, height);
+    set(CameraParameters::KEY_PICTURE_SIZE, str);
+}
+
+void CameraParameters2::getPictureSize(int *width, int *height) const
+{
+    *width = *height = -1;
+    // Get the current string, if it doesn't exist, leave the -1x-1
+    const char *p = get(CameraParameters::KEY_PICTURE_SIZE);
+    if (p == 0) return;
+    parse_pair(p, width, height, 'x');
+}
+
+void CameraParameters2::getSupportedPictureSizes(Vector<Size> &sizes) const
+{
+    const char *pictureSizesStr = get(CameraParameters::KEY_SUPPORTED_PICTURE_SIZES);
+    parseSizesList(pictureSizesStr, sizes);
+}
+
+void CameraParameters2::setPictureFormat(const char *format)
+{
+    set(CameraParameters::KEY_PICTURE_FORMAT, format);
+}
+
+const char *CameraParameters2::getPictureFormat() const
+{
+    return get(CameraParameters::KEY_PICTURE_FORMAT);
+}
+
+void CameraParameters2::dump() const
+{
+    ALOGD("dump: mMap.size = %d", mMap.size());
+    for (size_t i = 0; i < mMap.size(); i++) {
+        String8 k, v;
+        k = mMap.keyAt(i);
+        v = mMap.valueAt(i);
+        ALOGD("%s: %s\n", k.string(), v.string());
+    }
+}
+
+status_t CameraParameters2::dump(int fd, const Vector<String16>& args) const
+{
+    (void)args;
+    const size_t SIZE = 256;
+    char buffer[SIZE];
+    String8 result;
+    snprintf(buffer, 255, "CameraParameters2::dump: mMap.size = %zu\n", mMap.size());
+    result.append(buffer);
+    for (size_t i = 0; i < mMap.size(); i++) {
+        String8 k, v;
+        k = mMap.keyAt(i);
+        v = mMap.valueAt(i);
+        snprintf(buffer, 255, "\t%s: %s\n", k.string(), v.string());
+        result.append(buffer);
+    }
+    write(fd, result.string(), result.size());
+    return NO_ERROR;
+}
+
+}; // namespace android