зеркало из https://github.com/mozilla/pjs.git
406 строки
18 KiB
C++
406 строки
18 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_HARDWARE_CAMERA_PARAMETERS_H
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#define ANDROID_HARDWARE_CAMERA_PARAMETERS_H
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#include <utils/KeyedVector.h>
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#include <utils/String8.h>
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namespace android {
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struct Size {
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int width;
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int height;
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Size() {
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width = 0;
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height = 0;
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}
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Size(int w, int h) {
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width = w;
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height = h;
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}
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};
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class CameraParameters
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{
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public:
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CameraParameters();
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CameraParameters(const String8 ¶ms) { unflatten(params); }
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~CameraParameters();
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String8 flatten() const;
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void unflatten(const String8 ¶ms);
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void set(const char *key, const char *value);
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void set(const char *key, int value);
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void setFloat(const char *key, float value);
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const char *get(const char *key) const;
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int getInt(const char *key) const;
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float getFloat(const char *key) const;
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void remove(const char *key);
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void setPreviewSize(int width, int height);
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void getPreviewSize(int *width, int *height) const;
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void getSupportedPreviewSizes(Vector<Size> &sizes) const;
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void setPreviewFrameRate(int fps);
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int getPreviewFrameRate() const;
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void getPreviewFpsRange(int *min_fps, int *max_fps) const;
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void setPreviewFormat(const char *format);
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const char *getPreviewFormat() const;
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void setPictureSize(int width, int height);
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void getPictureSize(int *width, int *height) const;
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void getSupportedPictureSizes(Vector<Size> &sizes) const;
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void setPictureFormat(const char *format);
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const char *getPictureFormat() const;
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void dump() const;
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status_t dump(int fd, const Vector<String16>& args) const;
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// Parameter keys to communicate between camera application and driver.
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// The access (read/write, read only, or write only) is viewed from the
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// perspective of applications, not driver.
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// Preview frame size in pixels (width x height).
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// Example value: "480x320". Read/Write.
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static const char KEY_PREVIEW_SIZE[];
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// Supported preview frame sizes in pixels.
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// Example value: "800x600,480x320". Read only.
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static const char KEY_SUPPORTED_PREVIEW_SIZES[];
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// The current minimum and maximum preview fps. This controls the rate of
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// preview frames received (CAMERA_MSG_PREVIEW_FRAME). The minimum and
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// maximum fps must be one of the elements from
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// KEY_SUPPORTED_PREVIEW_FPS_RANGE parameter.
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// Example value: "10500,26623"
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static const char KEY_PREVIEW_FPS_RANGE[];
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// The supported preview fps (frame-per-second) ranges. Each range contains
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// a minimum fps and maximum fps. If minimum fps equals to maximum fps, the
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// camera outputs frames in fixed frame rate. If not, the camera outputs
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// frames in auto frame rate. The actual frame rate fluctuates between the
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// minimum and the maximum. The list has at least one element. The list is
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// sorted from small to large (first by maximum fps and then minimum fps).
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// Example value: "(10500,26623),(15000,26623),(30000,30000)"
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static const char KEY_SUPPORTED_PREVIEW_FPS_RANGE[];
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// The image format for preview frames. See CAMERA_MSG_PREVIEW_FRAME in
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// frameworks/base/include/camera/Camera.h.
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// Example value: "yuv420sp" or PIXEL_FORMAT_XXX constants. Read/write.
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static const char KEY_PREVIEW_FORMAT[];
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// Supported image formats for preview frames.
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// Example value: "yuv420sp,yuv422i-yuyv". Read only.
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static const char KEY_SUPPORTED_PREVIEW_FORMATS[];
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// Number of preview frames per second. This is the target frame rate. The
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// actual frame rate depends on the driver.
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// Example value: "15". Read/write.
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static const char KEY_PREVIEW_FRAME_RATE[];
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// Supported number of preview frames per second.
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// Example value: "24,15,10". Read.
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static const char KEY_SUPPORTED_PREVIEW_FRAME_RATES[];
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// The dimensions for captured pictures in pixels (width x height).
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// Example value: "1024x768". Read/write.
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static const char KEY_PICTURE_SIZE[];
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// Supported dimensions for captured pictures in pixels.
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// Example value: "2048x1536,1024x768". Read only.
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static const char KEY_SUPPORTED_PICTURE_SIZES[];
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// The image format for captured pictures. See CAMERA_MSG_COMPRESSED_IMAGE
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// in frameworks/base/include/camera/Camera.h.
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// Example value: "jpeg" or PIXEL_FORMAT_XXX constants. Read/write.
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static const char KEY_PICTURE_FORMAT[];
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// Supported image formats for captured pictures.
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// Example value: "jpeg,rgb565". Read only.
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static const char KEY_SUPPORTED_PICTURE_FORMATS[];
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// The width (in pixels) of EXIF thumbnail in Jpeg picture.
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// Example value: "512". Read/write.
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static const char KEY_JPEG_THUMBNAIL_WIDTH[];
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// The height (in pixels) of EXIF thumbnail in Jpeg picture.
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// Example value: "384". Read/write.
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static const char KEY_JPEG_THUMBNAIL_HEIGHT[];
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// Supported EXIF thumbnail sizes (width x height). 0x0 means not thumbnail
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// in EXIF.
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// Example value: "512x384,320x240,0x0". Read only.
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static const char KEY_SUPPORTED_JPEG_THUMBNAIL_SIZES[];
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// The quality of the EXIF thumbnail in Jpeg picture. The range is 1 to 100,
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// with 100 being the best.
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// Example value: "90". Read/write.
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static const char KEY_JPEG_THUMBNAIL_QUALITY[];
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// Jpeg quality of captured picture. The range is 1 to 100, with 100 being
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// the best.
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// Example value: "90". Read/write.
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static const char KEY_JPEG_QUALITY[];
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// The rotation angle in degrees relative to the orientation of the camera.
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// This affects the pictures returned from CAMERA_MSG_COMPRESSED_IMAGE. The
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// camera driver may set orientation in the EXIF header without rotating the
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// picture. Or the driver may rotate the picture and the EXIF thumbnail. If
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// the Jpeg picture is rotated, the orientation in the EXIF header will be
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// missing or 1 (row #0 is top and column #0 is left side).
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//
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// Note that the JPEG pictures of front-facing cameras are not mirrored
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// as in preview display.
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//
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// For example, suppose the natural orientation of the device is portrait.
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// The device is rotated 270 degrees clockwise, so the device orientation is
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// 270. Suppose a back-facing camera sensor is mounted in landscape and the
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// top side of the camera sensor is aligned with the right edge of the
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// display in natural orientation. So the camera orientation is 90. The
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// rotation should be set to 0 (270 + 90).
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//
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// Example value: "0" or "90" or "180" or "270". Write only.
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static const char KEY_ROTATION[];
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// GPS latitude coordinate. GPSLatitude and GPSLatitudeRef will be stored in
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// JPEG EXIF header.
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// Example value: "25.032146" or "-33.462809". Write only.
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static const char KEY_GPS_LATITUDE[];
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// GPS longitude coordinate. GPSLongitude and GPSLongitudeRef will be stored
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// in JPEG EXIF header.
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// Example value: "121.564448" or "-70.660286". Write only.
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static const char KEY_GPS_LONGITUDE[];
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// GPS altitude. GPSAltitude and GPSAltitudeRef will be stored in JPEG EXIF
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// header.
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// Example value: "21.0" or "-5". Write only.
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static const char KEY_GPS_ALTITUDE[];
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// GPS timestamp (UTC in seconds since January 1, 1970). This should be
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// stored in JPEG EXIF header.
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// Example value: "1251192757". Write only.
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static const char KEY_GPS_TIMESTAMP[];
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// GPS Processing Method
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// Example value: "GPS" or "NETWORK". Write only.
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static const char KEY_GPS_PROCESSING_METHOD[];
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// Current white balance setting.
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// Example value: "auto" or WHITE_BALANCE_XXX constants. Read/write.
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static const char KEY_WHITE_BALANCE[];
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// Supported white balance settings.
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// Example value: "auto,incandescent,daylight". Read only.
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static const char KEY_SUPPORTED_WHITE_BALANCE[];
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// Current color effect setting.
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// Example value: "none" or EFFECT_XXX constants. Read/write.
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static const char KEY_EFFECT[];
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// Supported color effect settings.
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// Example value: "none,mono,sepia". Read only.
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static const char KEY_SUPPORTED_EFFECTS[];
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// Current antibanding setting.
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// Example value: "auto" or ANTIBANDING_XXX constants. Read/write.
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static const char KEY_ANTIBANDING[];
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// Supported antibanding settings.
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// Example value: "auto,50hz,60hz,off". Read only.
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static const char KEY_SUPPORTED_ANTIBANDING[];
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// Current scene mode.
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// Example value: "auto" or SCENE_MODE_XXX constants. Read/write.
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static const char KEY_SCENE_MODE[];
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// Supported scene mode settings.
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// Example value: "auto,night,fireworks". Read only.
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static const char KEY_SUPPORTED_SCENE_MODES[];
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// Current flash mode.
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// Example value: "auto" or FLASH_MODE_XXX constants. Read/write.
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static const char KEY_FLASH_MODE[];
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// Supported flash modes.
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// Example value: "auto,on,off". Read only.
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static const char KEY_SUPPORTED_FLASH_MODES[];
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// Current focus mode. This will not be empty. Applications should call
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// CameraHardwareInterface.autoFocus to start the focus if focus mode is
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// FOCUS_MODE_AUTO or FOCUS_MODE_MACRO.
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// Example value: "auto" or FOCUS_MODE_XXX constants. Read/write.
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static const char KEY_FOCUS_MODE[];
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// Supported focus modes.
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// Example value: "auto,macro,fixed". Read only.
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static const char KEY_SUPPORTED_FOCUS_MODES[];
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// Focal length in millimeter.
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// Example value: "4.31". Read only.
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static const char KEY_FOCAL_LENGTH[];
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// Horizontal angle of view in degrees.
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// Example value: "54.8". Read only.
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static const char KEY_HORIZONTAL_VIEW_ANGLE[];
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// Vertical angle of view in degrees.
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// Example value: "42.5". Read only.
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static const char KEY_VERTICAL_VIEW_ANGLE[];
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// Exposure compensation index. 0 means exposure is not adjusted.
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// Example value: "0" or "5". Read/write.
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static const char KEY_EXPOSURE_COMPENSATION[];
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// The maximum exposure compensation index (>=0).
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// Example value: "6". Read only.
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static const char KEY_MAX_EXPOSURE_COMPENSATION[];
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// The minimum exposure compensation index (<=0).
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// Example value: "-6". Read only.
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static const char KEY_MIN_EXPOSURE_COMPENSATION[];
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// The exposure compensation step. Exposure compensation index multiply by
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// step eqals to EV. Ex: if exposure compensation index is 6 and step is
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// 0.3333, EV is -2.
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// Example value: "0.333333333" or "0.5". Read only.
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static const char KEY_EXPOSURE_COMPENSATION_STEP[];
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// Current zoom value.
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// Example value: "0" or "6". Read/write.
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static const char KEY_ZOOM[];
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// Maximum zoom value.
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// Example value: "6". Read only.
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static const char KEY_MAX_ZOOM[];
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// The zoom ratios of all zoom values. The zoom ratio is in 1/100
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// increments. Ex: a zoom of 3.2x is returned as 320. The number of list
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// elements is KEY_MAX_ZOOM + 1. The first element is always 100. The last
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// element is the zoom ratio of zoom value KEY_MAX_ZOOM.
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// Example value: "100,150,200,250,300,350,400". Read only.
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static const char KEY_ZOOM_RATIOS[];
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// Whether zoom is supported. Zoom is supported if the value is "true". Zoom
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// is not supported if the value is not "true" or the key does not exist.
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// Example value: "true". Read only.
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static const char KEY_ZOOM_SUPPORTED[];
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// Whether if smooth zoom is supported. Smooth zoom is supported if the
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// value is "true". It is not supported if the value is not "true" or the
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// key does not exist.
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// See CAMERA_CMD_START_SMOOTH_ZOOM, CAMERA_CMD_STOP_SMOOTH_ZOOM, and
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// CAMERA_MSG_ZOOM in frameworks/base/include/camera/Camera.h.
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// Example value: "true". Read only.
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static const char KEY_SMOOTH_ZOOM_SUPPORTED[];
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// The distances (in meters) from the camera to where an object appears to
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// be in focus. The object is sharpest at the optimal focus distance. The
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// depth of field is the far focus distance minus near focus distance.
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//
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// Focus distances may change after starting auto focus, canceling auto
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// focus, or starting the preview. Applications can read this anytime to get
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// the latest focus distances. If the focus mode is FOCUS_MODE_CONTINUOUS,
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// focus distances may change from time to time.
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//
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// This is intended to estimate the distance between the camera and the
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// subject. After autofocus, the subject distance may be within near and far
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// focus distance. However, the precision depends on the camera hardware,
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// autofocus algorithm, the focus area, and the scene. The error can be
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// large and it should be only used as a reference.
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//
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// Far focus distance > optimal focus distance > near focus distance. If
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// the far focus distance is infinity, the value should be "Infinity" (case
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// sensitive). The format is three float values separated by commas. The
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// first is near focus distance. The second is optimal focus distance. The
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// third is far focus distance.
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// Example value: "0.95,1.9,Infinity" or "0.049,0.05,0.051". Read only.
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static const char KEY_FOCUS_DISTANCES[];
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// The image format for video frames. See CAMERA_MSG_VIDEO_FRAME in
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// frameworks/base/include/camera/Camera.h.
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// Example value: "yuv420sp" or PIXEL_FORMAT_XXX constants. Read only.
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static const char KEY_VIDEO_FRAME_FORMAT[];
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// Value for KEY_ZOOM_SUPPORTED or KEY_SMOOTH_ZOOM_SUPPORTED.
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static const char TRUE[];
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// Value for KEY_FOCUS_DISTANCES.
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static const char FOCUS_DISTANCE_INFINITY[];
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// Values for white balance settings.
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static const char WHITE_BALANCE_AUTO[];
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static const char WHITE_BALANCE_INCANDESCENT[];
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static const char WHITE_BALANCE_FLUORESCENT[];
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static const char WHITE_BALANCE_WARM_FLUORESCENT[];
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static const char WHITE_BALANCE_DAYLIGHT[];
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static const char WHITE_BALANCE_CLOUDY_DAYLIGHT[];
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static const char WHITE_BALANCE_TWILIGHT[];
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static const char WHITE_BALANCE_SHADE[];
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// Values for effect settings.
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static const char EFFECT_NONE[];
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static const char EFFECT_MONO[];
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static const char EFFECT_NEGATIVE[];
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static const char EFFECT_SOLARIZE[];
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static const char EFFECT_SEPIA[];
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static const char EFFECT_POSTERIZE[];
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static const char EFFECT_WHITEBOARD[];
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static const char EFFECT_BLACKBOARD[];
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static const char EFFECT_AQUA[];
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// Values for antibanding settings.
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static const char ANTIBANDING_AUTO[];
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static const char ANTIBANDING_50HZ[];
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static const char ANTIBANDING_60HZ[];
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static const char ANTIBANDING_OFF[];
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// Values for flash mode settings.
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// Flash will not be fired.
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static const char FLASH_MODE_OFF[];
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// Flash will be fired automatically when required. The flash may be fired
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// during preview, auto-focus, or snapshot depending on the driver.
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static const char FLASH_MODE_AUTO[];
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// Flash will always be fired during snapshot. The flash may also be
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// fired during preview or auto-focus depending on the driver.
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static const char FLASH_MODE_ON[];
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// Flash will be fired in red-eye reduction mode.
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static const char FLASH_MODE_RED_EYE[];
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// Constant emission of light during preview, auto-focus and snapshot.
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// This can also be used for video recording.
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static const char FLASH_MODE_TORCH[];
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// Values for scene mode settings.
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static const char SCENE_MODE_AUTO[];
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static const char SCENE_MODE_ACTION[];
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static const char SCENE_MODE_PORTRAIT[];
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static const char SCENE_MODE_LANDSCAPE[];
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static const char SCENE_MODE_NIGHT[];
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static const char SCENE_MODE_NIGHT_PORTRAIT[];
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static const char SCENE_MODE_THEATRE[];
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static const char SCENE_MODE_BEACH[];
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static const char SCENE_MODE_SNOW[];
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static const char SCENE_MODE_SUNSET[];
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static const char SCENE_MODE_STEADYPHOTO[];
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static const char SCENE_MODE_FIREWORKS[];
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static const char SCENE_MODE_SPORTS[];
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static const char SCENE_MODE_PARTY[];
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static const char SCENE_MODE_CANDLELIGHT[];
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// Applications are looking for a barcode. Camera driver will be optimized
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// for barcode reading.
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static const char SCENE_MODE_BARCODE[];
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// Formats for setPreviewFormat and setPictureFormat.
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static const char PIXEL_FORMAT_YUV422SP[];
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static const char PIXEL_FORMAT_YUV420SP[]; // NV21
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static const char PIXEL_FORMAT_YUV422I[]; // YUY2
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static const char PIXEL_FORMAT_RGB565[];
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static const char PIXEL_FORMAT_JPEG[];
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// Values for focus mode settings.
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// Auto-focus mode. Applications should call
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// CameraHardwareInterface.autoFocus to start the focus in this mode.
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static const char FOCUS_MODE_AUTO[];
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// Focus is set at infinity. Applications should not call
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// CameraHardwareInterface.autoFocus in this mode.
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static const char FOCUS_MODE_INFINITY[];
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// Macro (close-up) focus mode. Applications should call
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// CameraHardwareInterface.autoFocus to start the focus in this mode.
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static const char FOCUS_MODE_MACRO[];
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// Focus is fixed. The camera is always in this mode if the focus is not
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// adjustable. If the camera has auto-focus, this mode can fix the
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// focus, which is usually at hyperfocal distance. Applications should
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// not call CameraHardwareInterface.autoFocus in this mode.
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static const char FOCUS_MODE_FIXED[];
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// Extended depth of field (EDOF). Focusing is done digitally and
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// continuously. Applications should not call
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// CameraHardwareInterface.autoFocus in this mode.
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static const char FOCUS_MODE_EDOF[];
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// Continuous auto focus mode intended for video recording. The camera
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// continuously tries to focus. This is ideal for shooting video.
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// Applications still can call CameraHardwareInterface.takePicture in this
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// mode but the subject may not be in focus. Auto focus starts when the
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// parameter is set. Applications should not call
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// CameraHardwareInterface.autoFocus in this mode. To stop continuous focus,
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// applications should change the focus mode to other modes.
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static const char FOCUS_MODE_CONTINUOUS_VIDEO[];
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private:
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DefaultKeyedVector<String8,String8> mMap;
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};
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}; // namespace android
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#endif
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