| /* |
| * Copyright (C) 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. |
| */ |
| |
| #ifndef ANDROID_HARDWARE_CAMERA_PARAMETERS_H |
| #define ANDROID_HARDWARE_CAMERA_PARAMETERS_H |
| |
| #include <utils/KeyedVector.h> |
| #include <utils/String8.h> |
| |
| namespace android { |
| |
| struct Size { |
| int width; |
| int height; |
| |
| Size() { |
| width = 0; |
| height = 0; |
| } |
| |
| Size(int w, int h) { |
| width = w; |
| height = h; |
| } |
| }; |
| |
| class CameraParameters |
| { |
| public: |
| CameraParameters(); |
| CameraParameters(const String8 ¶ms) { unflatten(params); } |
| ~CameraParameters(); |
| |
| String8 flatten() const; |
| void unflatten(const String8 ¶ms); |
| |
| void set(const char *key, const char *value); |
| void set(const char *key, int value); |
| void setFloat(const char *key, float value); |
| const char *get(const char *key) const; |
| int getInt(const char *key) const; |
| float getFloat(const char *key) const; |
| |
| void remove(const char *key); |
| |
| void setPreviewSize(int width, int height); |
| void getPreviewSize(int *width, int *height) const; |
| void getSupportedPreviewSizes(Vector<Size> &sizes) const; |
| |
| // Set the dimensions in pixels to the given width and height |
| // for video frames. The given width and height must be one |
| // of the supported dimensions returned from |
| // getSupportedVideoSizes(). Must not be called if |
| // getSupportedVideoSizes() returns an empty Vector of Size. |
| void setVideoSize(int width, int height); |
| // Retrieve the current dimensions (width and height) |
| // in pixels for video frames, which must be one of the |
| // supported dimensions returned from getSupportedVideoSizes(). |
| // Must not be called if getSupportedVideoSizes() returns an |
| // empty Vector of Size. |
| void getVideoSize(int *width, int *height) const; |
| // Retrieve a Vector of supported dimensions (width and height) |
| // in pixels for video frames. If sizes returned from the method |
| // is empty, the camera does not support calls to setVideoSize() |
| // or getVideoSize(). In adddition, it also indicates that |
| // the camera only has a single output, and does not have |
| // separate output for video frames and preview frame. |
| void getSupportedVideoSizes(Vector<Size> &sizes) const; |
| // Retrieve the preferred preview size (width and height) in pixels |
| // for video recording. The given width and height must be one of |
| // supported preview sizes returned from getSupportedPreviewSizes(). |
| // Must not be called if getSupportedVideoSizes() returns an empty |
| // Vector of Size. If getSupportedVideoSizes() returns an empty |
| // Vector of Size, the width and height returned from this method |
| // is invalid, and is "-1x-1". |
| void getPreferredPreviewSizeForVideo(int *width, int *height) const; |
| |
| void setPreviewFrameRate(int fps); |
| int getPreviewFrameRate() const; |
| void getPreviewFpsRange(int *min_fps, int *max_fps) const; |
| void setPreviewFormat(const char *format); |
| const char *getPreviewFormat() const; |
| void setPictureSize(int width, int height); |
| void getPictureSize(int *width, int *height) const; |
| void getSupportedPictureSizes(Vector<Size> &sizes) const; |
| void setPictureFormat(const char *format); |
| const char *getPictureFormat() const; |
| |
| void dump() const; |
| status_t dump(int fd, const Vector<String16>& args) const; |
| |
| // Parameter keys to communicate between camera application and driver. |
| // The access (read/write, read only, or write only) is viewed from the |
| // perspective of applications, not driver. |
| |
| // Preview frame size in pixels (width x height). |
| // Example value: "480x320". Read/Write. |
| static const char KEY_PREVIEW_SIZE[]; |
| // Supported preview frame sizes in pixels. |
| // Example value: "800x600,480x320". Read only. |
| static const char KEY_SUPPORTED_PREVIEW_SIZES[]; |
| // The current minimum and maximum preview fps. This controls the rate of |
| // preview frames received (CAMERA_MSG_PREVIEW_FRAME). The minimum and |
| // maximum fps must be one of the elements from |
| // KEY_SUPPORTED_PREVIEW_FPS_RANGE parameter. |
| // Example value: "10500,26623" |
| static const char KEY_PREVIEW_FPS_RANGE[]; |
| // The supported preview fps (frame-per-second) ranges. Each range contains |
| // a minimum fps and maximum fps. If minimum fps equals to maximum fps, the |
| // camera outputs frames in fixed frame rate. If not, the camera outputs |
| // frames in auto frame rate. The actual frame rate fluctuates between the |
| // minimum and the maximum. The list has at least one element. The list is |
| // sorted from small to large (first by maximum fps and then minimum fps). |
| // Example value: "(10500,26623),(15000,26623),(30000,30000)" |
| static const char KEY_SUPPORTED_PREVIEW_FPS_RANGE[]; |
| // The image format for preview frames. See CAMERA_MSG_PREVIEW_FRAME in |
| // frameworks/av/include/camera/Camera.h. The default is |
| // PIXEL_FORMAT_YUV420SP. Example value: "yuv420sp" or PIXEL_FORMAT_XXX |
| // constants. Read/write. |
| static const char KEY_PREVIEW_FORMAT[]; |
| // Supported image formats for preview frames. |
| // Example value: "yuv420sp,yuv422i-yuyv". Read only. |
| static const char KEY_SUPPORTED_PREVIEW_FORMATS[]; |
| // Number of preview frames per second. This is the target frame rate. The |
| // actual frame rate depends on the driver. |
| // Example value: "15". Read/write. |
| static const char KEY_PREVIEW_FRAME_RATE[]; |
| // Supported number of preview frames per second. |
| // Example value: "24,15,10". Read. |
| static const char KEY_SUPPORTED_PREVIEW_FRAME_RATES[]; |
| // The dimensions for captured pictures in pixels (width x height). |
| // Example value: "1024x768". Read/write. |
| static const char KEY_PICTURE_SIZE[]; |
| // Supported dimensions for captured pictures in pixels. |
| // Example value: "2048x1536,1024x768". Read only. |
| static const char KEY_SUPPORTED_PICTURE_SIZES[]; |
| // The image format for captured pictures. See CAMERA_MSG_COMPRESSED_IMAGE |
| // in frameworks/base/include/camera/Camera.h. |
| // Example value: "jpeg" or PIXEL_FORMAT_XXX constants. Read/write. |
| static const char KEY_PICTURE_FORMAT[]; |
| // Supported image formats for captured pictures. |
| // Example value: "jpeg,rgb565". Read only. |
| static const char KEY_SUPPORTED_PICTURE_FORMATS[]; |
| // The width (in pixels) of EXIF thumbnail in Jpeg picture. |
| // Example value: "512". Read/write. |
| static const char KEY_JPEG_THUMBNAIL_WIDTH[]; |
| // The height (in pixels) of EXIF thumbnail in Jpeg picture. |
| // Example value: "384". Read/write. |
| static const char KEY_JPEG_THUMBNAIL_HEIGHT[]; |
| // Supported EXIF thumbnail sizes (width x height). 0x0 means not thumbnail |
| // in EXIF. |
| // Example value: "512x384,320x240,0x0". Read only. |
| static const char KEY_SUPPORTED_JPEG_THUMBNAIL_SIZES[]; |
| // The quality of the EXIF thumbnail in Jpeg picture. The range is 1 to 100, |
| // with 100 being the best. |
| // Example value: "90". Read/write. |
| static const char KEY_JPEG_THUMBNAIL_QUALITY[]; |
| // Jpeg quality of captured picture. The range is 1 to 100, with 100 being |
| // the best. |
| // Example value: "90". Read/write. |
| static const char KEY_JPEG_QUALITY[]; |
| // The rotation angle in degrees relative to the orientation of the camera. |
| // This affects the pictures returned from CAMERA_MSG_COMPRESSED_IMAGE. The |
| // camera driver may set orientation in the EXIF header without rotating the |
| // picture. Or the driver may rotate the picture and the EXIF thumbnail. If |
| // the Jpeg picture is rotated, the orientation in the EXIF header will be |
| // missing or 1 (row #0 is top and column #0 is left side). |
| // |
| // Note that the JPEG pictures of front-facing cameras are not mirrored |
| // as in preview display. |
| // |
| // For example, suppose the natural orientation of the device is portrait. |
| // The device is rotated 270 degrees clockwise, so the device orientation is |
| // 270. Suppose a back-facing camera sensor is mounted in landscape and the |
| // top side of the camera sensor is aligned with the right edge of the |
| // display in natural orientation. So the camera orientation is 90. The |
| // rotation should be set to 0 (270 + 90). |
| // |
| // Example value: "0" or "90" or "180" or "270". Write only. |
| static const char KEY_ROTATION[]; |
| // GPS latitude coordinate. GPSLatitude and GPSLatitudeRef will be stored in |
| // JPEG EXIF header. |
| // Example value: "25.032146" or "-33.462809". Write only. |
| static const char KEY_GPS_LATITUDE[]; |
| // GPS longitude coordinate. GPSLongitude and GPSLongitudeRef will be stored |
| // in JPEG EXIF header. |
| // Example value: "121.564448" or "-70.660286". Write only. |
| static const char KEY_GPS_LONGITUDE[]; |
| // GPS altitude. GPSAltitude and GPSAltitudeRef will be stored in JPEG EXIF |
| // header. |
| // Example value: "21.0" or "-5". Write only. |
| static const char KEY_GPS_ALTITUDE[]; |
| // GPS timestamp (UTC in seconds since January 1, 1970). This should be |
| // stored in JPEG EXIF header. |
| // Example value: "1251192757". Write only. |
| static const char KEY_GPS_TIMESTAMP[]; |
| // GPS Processing Method |
| // Example value: "GPS" or "NETWORK". Write only. |
| static const char KEY_GPS_PROCESSING_METHOD[]; |
| // Current white balance setting. |
| // Example value: "auto" or WHITE_BALANCE_XXX constants. Read/write. |
| static const char KEY_WHITE_BALANCE[]; |
| // Supported white balance settings. |
| // Example value: "auto,incandescent,daylight". Read only. |
| static const char KEY_SUPPORTED_WHITE_BALANCE[]; |
| // Current color effect setting. |
| // Example value: "none" or EFFECT_XXX constants. Read/write. |
| static const char KEY_EFFECT[]; |
| // Supported color effect settings. |
| // Example value: "none,mono,sepia". Read only. |
| static const char KEY_SUPPORTED_EFFECTS[]; |
| // Current antibanding setting. |
| // Example value: "auto" or ANTIBANDING_XXX constants. Read/write. |
| static const char KEY_ANTIBANDING[]; |
| // Supported antibanding settings. |
| // Example value: "auto,50hz,60hz,off". Read only. |
| static const char KEY_SUPPORTED_ANTIBANDING[]; |
| // Current scene mode. |
| // Example value: "auto" or SCENE_MODE_XXX constants. Read/write. |
| static const char KEY_SCENE_MODE[]; |
| // Supported scene mode settings. |
| // Example value: "auto,night,fireworks". Read only. |
| static const char KEY_SUPPORTED_SCENE_MODES[]; |
| // Current flash mode. |
| // Example value: "auto" or FLASH_MODE_XXX constants. Read/write. |
| static const char KEY_FLASH_MODE[]; |
| // Supported flash modes. |
| // Example value: "auto,on,off". Read only. |
| static const char KEY_SUPPORTED_FLASH_MODES[]; |
| // Current focus mode. This will not be empty. Applications should call |
| // CameraHardwareInterface.autoFocus to start the focus if focus mode is |
| // FOCUS_MODE_AUTO or FOCUS_MODE_MACRO. |
| // Example value: "auto" or FOCUS_MODE_XXX constants. Read/write. |
| static const char KEY_FOCUS_MODE[]; |
| // Supported focus modes. |
| // Example value: "auto,macro,fixed". Read only. |
| static const char KEY_SUPPORTED_FOCUS_MODES[]; |
| // The maximum number of focus areas supported. This is the maximum length |
| // of KEY_FOCUS_AREAS. |
| // Example value: "0" or "2". Read only. |
| static const char KEY_MAX_NUM_FOCUS_AREAS[]; |
| // Current focus areas. |
| // |
| // Before accessing this parameter, apps should check |
| // KEY_MAX_NUM_FOCUS_AREAS first to know the maximum number of focus areas |
| // first. If the value is 0, focus area is not supported. |
| // |
| // Each focus area is a five-element int array. The first four elements are |
| // the rectangle of the area (left, top, right, bottom). The direction is |
| // relative to the sensor orientation, that is, what the sensor sees. The |
| // direction is not affected by the rotation or mirroring of |
| // CAMERA_CMD_SET_DISPLAY_ORIENTATION. Coordinates range from -1000 to 1000. |
| // (-1000,-1000) is the upper left point. (1000, 1000) is the lower right |
| // point. The width and height of focus areas cannot be 0 or negative. |
| // |
| // The fifth element is the weight. Values for weight must range from 1 to |
| // 1000. The weight should be interpreted as a per-pixel weight - all |
| // pixels in the area have the specified weight. This means a small area |
| // with the same weight as a larger area will have less influence on the |
| // focusing than the larger area. Focus areas can partially overlap and the |
| // driver will add the weights in the overlap region. |
| // |
| // A special case of single focus area (0,0,0,0,0) means driver to decide |
| // the focus area. For example, the driver may use more signals to decide |
| // focus areas and change them dynamically. Apps can set (0,0,0,0,0) if they |
| // want the driver to decide focus areas. |
| // |
| // Focus areas are relative to the current field of view (KEY_ZOOM). No |
| // matter what the zoom level is, (-1000,-1000) represents the top of the |
| // currently visible camera frame. The focus area cannot be set to be |
| // outside the current field of view, even when using zoom. |
| // |
| // Focus area only has effect if the current focus mode is FOCUS_MODE_AUTO, |
| // FOCUS_MODE_MACRO, FOCUS_MODE_CONTINUOUS_VIDEO, or |
| // FOCUS_MODE_CONTINUOUS_PICTURE. |
| // Example value: "(-10,-10,0,0,300),(0,0,10,10,700)". Read/write. |
| static const char KEY_FOCUS_AREAS[]; |
| // Focal length in millimeter. |
| // Example value: "4.31". Read only. |
| static const char KEY_FOCAL_LENGTH[]; |
| // Horizontal angle of view in degrees. |
| // Example value: "54.8". Read only. |
| static const char KEY_HORIZONTAL_VIEW_ANGLE[]; |
| // Vertical angle of view in degrees. |
| // Example value: "42.5". Read only. |
| static const char KEY_VERTICAL_VIEW_ANGLE[]; |
| // Exposure compensation index. 0 means exposure is not adjusted. |
| // Example value: "-5" or "5". Read/write. |
| static const char KEY_EXPOSURE_COMPENSATION[]; |
| // The maximum exposure compensation index (>=0). |
| // Example value: "6". Read only. |
| static const char KEY_MAX_EXPOSURE_COMPENSATION[]; |
| // The minimum exposure compensation index (<=0). |
| // Example value: "-6". Read only. |
| static const char KEY_MIN_EXPOSURE_COMPENSATION[]; |
| // The exposure compensation step. Exposure compensation index multiply by |
| // step eqals to EV. Ex: if exposure compensation index is -6 and step is |
| // 0.3333, EV is -2. |
| // Example value: "0.333333333" or "0.5". Read only. |
| static const char KEY_EXPOSURE_COMPENSATION_STEP[]; |
| // The state of the auto-exposure lock. "true" means that |
| // auto-exposure is locked to its current value and will not |
| // change. "false" means the auto-exposure routine is free to |
| // change exposure values. If auto-exposure is already locked, |
| // setting this to true again has no effect (the driver will not |
| // recalculate exposure values). Changing exposure compensation |
| // settings will still affect the exposure settings while |
| // auto-exposure is locked. Stopping preview or taking a still |
| // image will not change the lock. In conjunction with |
| // exposure compensation, this allows for capturing multi-exposure |
| // brackets with known relative exposure values. Locking |
| // auto-exposure after open but before the first call to |
| // startPreview may result in severely over- or under-exposed |
| // images. The driver will not change the AE lock after |
| // auto-focus completes. |
| static const char KEY_AUTO_EXPOSURE_LOCK[]; |
| // Whether locking the auto-exposure is supported. "true" means it is, and |
| // "false" or this key not existing means it is not supported. |
| static const char KEY_AUTO_EXPOSURE_LOCK_SUPPORTED[]; |
| // The state of the auto-white balance lock. "true" means that |
| // auto-white balance is locked to its current value and will not |
| // change. "false" means the auto-white balance routine is free to |
| // change white balance values. If auto-white balance is already |
| // locked, setting this to true again has no effect (the driver |
| // will not recalculate white balance values). Stopping preview or |
| // taking a still image will not change the lock. In conjunction |
| // with exposure compensation, this allows for capturing |
| // multi-exposure brackets with fixed white balance. Locking |
| // auto-white balance after open but before the first call to |
| // startPreview may result in severely incorrect color. The |
| // driver will not change the AWB lock after auto-focus |
| // completes. |
| static const char KEY_AUTO_WHITEBALANCE_LOCK[]; |
| // Whether locking the auto-white balance is supported. "true" |
| // means it is, and "false" or this key not existing means it is |
| // not supported. |
| static const char KEY_AUTO_WHITEBALANCE_LOCK_SUPPORTED[]; |
| |
| // The maximum number of metering areas supported. This is the maximum |
| // length of KEY_METERING_AREAS. |
| // Example value: "0" or "2". Read only. |
| static const char KEY_MAX_NUM_METERING_AREAS[]; |
| // Current metering areas. Camera driver uses these areas to decide |
| // exposure. |
| // |
| // Before accessing this parameter, apps should check |
| // KEY_MAX_NUM_METERING_AREAS first to know the maximum number of metering |
| // areas first. If the value is 0, metering area is not supported. |
| // |
| // Each metering area is a rectangle with specified weight. The direction is |
| // relative to the sensor orientation, that is, what the sensor sees. The |
| // direction is not affected by the rotation or mirroring of |
| // CAMERA_CMD_SET_DISPLAY_ORIENTATION. Coordinates of the rectangle range |
| // from -1000 to 1000. (-1000, -1000) is the upper left point. (1000, 1000) |
| // is the lower right point. The width and height of metering areas cannot |
| // be 0 or negative. |
| // |
| // The fifth element is the weight. Values for weight must range from 1 to |
| // 1000. The weight should be interpreted as a per-pixel weight - all |
| // pixels in the area have the specified weight. This means a small area |
| // with the same weight as a larger area will have less influence on the |
| // metering than the larger area. Metering areas can partially overlap and |
| // the driver will add the weights in the overlap region. |
| // |
| // A special case of all-zero single metering area means driver to decide |
| // the metering area. For example, the driver may use more signals to decide |
| // metering areas and change them dynamically. Apps can set all-zero if they |
| // want the driver to decide metering areas. |
| // |
| // Metering areas are relative to the current field of view (KEY_ZOOM). |
| // No matter what the zoom level is, (-1000,-1000) represents the top of the |
| // currently visible camera frame. The metering area cannot be set to be |
| // outside the current field of view, even when using zoom. |
| // |
| // No matter what metering areas are, the final exposure are compensated |
| // by KEY_EXPOSURE_COMPENSATION. |
| // Example value: "(-10,-10,0,0,300),(0,0,10,10,700)". Read/write. |
| static const char KEY_METERING_AREAS[]; |
| // Current zoom value. |
| // Example value: "0" or "6". Read/write. |
| static const char KEY_ZOOM[]; |
| // Maximum zoom value. |
| // Example value: "6". Read only. |
| static const char KEY_MAX_ZOOM[]; |
| // The zoom ratios of all zoom values. The zoom ratio is in 1/100 |
| // increments. Ex: a zoom of 3.2x is returned as 320. The number of list |
| // elements is KEY_MAX_ZOOM + 1. The first element is always 100. The last |
| // element is the zoom ratio of zoom value KEY_MAX_ZOOM. |
| // Example value: "100,150,200,250,300,350,400". Read only. |
| static const char KEY_ZOOM_RATIOS[]; |
| // Whether zoom is supported. Zoom is supported if the value is "true". Zoom |
| // is not supported if the value is not "true" or the key does not exist. |
| // Example value: "true". Read only. |
| static const char KEY_ZOOM_SUPPORTED[]; |
| // Whether if smooth zoom is supported. Smooth zoom is supported if the |
| // value is "true". It is not supported if the value is not "true" or the |
| // key does not exist. |
| // See CAMERA_CMD_START_SMOOTH_ZOOM, CAMERA_CMD_STOP_SMOOTH_ZOOM, and |
| // CAMERA_MSG_ZOOM in frameworks/base/include/camera/Camera.h. |
| // Example value: "true". Read only. |
| static const char KEY_SMOOTH_ZOOM_SUPPORTED[]; |
| |
| // The distances (in meters) from the camera to where an object appears to |
| // be in focus. The object is sharpest at the optimal focus distance. The |
| // depth of field is the far focus distance minus near focus distance. |
| // |
| // Focus distances may change after starting auto focus, canceling auto |
| // focus, or starting the preview. Applications can read this anytime to get |
| // the latest focus distances. If the focus mode is FOCUS_MODE_CONTINUOUS, |
| // focus distances may change from time to time. |
| // |
| // This is intended to estimate the distance between the camera and the |
| // subject. After autofocus, the subject distance may be within near and far |
| // focus distance. However, the precision depends on the camera hardware, |
| // autofocus algorithm, the focus area, and the scene. The error can be |
| // large and it should be only used as a reference. |
| // |
| // Far focus distance > optimal focus distance > near focus distance. If |
| // the far focus distance is infinity, the value should be "Infinity" (case |
| // sensitive). The format is three float values separated by commas. The |
| // first is near focus distance. The second is optimal focus distance. The |
| // third is far focus distance. |
| // Example value: "0.95,1.9,Infinity" or "0.049,0.05,0.051". Read only. |
| static const char KEY_FOCUS_DISTANCES[]; |
| |
| // The current dimensions in pixels (width x height) for video frames. |
| // The width and height must be one of the supported sizes retrieved |
| // via KEY_SUPPORTED_VIDEO_SIZES. |
| // Example value: "1280x720". Read/write. |
| static const char KEY_VIDEO_SIZE[]; |
| // A list of the supported dimensions in pixels (width x height) |
| // for video frames. See CAMERA_MSG_VIDEO_FRAME for details in |
| // frameworks/base/include/camera/Camera.h. |
| // Example: "176x144,1280x720". Read only. |
| static const char KEY_SUPPORTED_VIDEO_SIZES[]; |
| |
| // The maximum number of detected faces supported by hardware face |
| // detection. If the value is 0, hardware face detection is not supported. |
| // Example: "5". Read only |
| static const char KEY_MAX_NUM_DETECTED_FACES_HW[]; |
| |
| // The maximum number of detected faces supported by software face |
| // detection. If the value is 0, software face detection is not supported. |
| // Example: "5". Read only |
| static const char KEY_MAX_NUM_DETECTED_FACES_SW[]; |
| |
| // Preferred preview frame size in pixels for video recording. |
| // The width and height must be one of the supported sizes retrieved |
| // via KEY_SUPPORTED_PREVIEW_SIZES. This key can be used only when |
| // getSupportedVideoSizes() does not return an empty Vector of Size. |
| // Camcorder applications are recommended to set the preview size |
| // to a value that is not larger than the preferred preview size. |
| // In other words, the product of the width and height of the |
| // preview size should not be larger than that of the preferred |
| // preview size. In addition, we recommend to choos a preview size |
| // that has the same aspect ratio as the resolution of video to be |
| // recorded. |
| // Example value: "800x600". Read only. |
| static const char KEY_PREFERRED_PREVIEW_SIZE_FOR_VIDEO[]; |
| |
| // The image format for video frames. See CAMERA_MSG_VIDEO_FRAME in |
| // frameworks/base/include/camera/Camera.h. |
| // Example value: "yuv420sp" or PIXEL_FORMAT_XXX constants. Read only. |
| static const char KEY_VIDEO_FRAME_FORMAT[]; |
| |
| // Sets the hint of the recording mode. If this is true, MediaRecorder.start |
| // may be faster or has less glitches. This should be called before starting |
| // the preview for the best result. But it is allowed to change the hint |
| // while the preview is active. The default value is false. |
| // |
| // The apps can still call Camera.takePicture when the hint is true. The |
| // apps can call MediaRecorder.start when the hint is false. But the |
| // performance may be worse. |
| // Example value: "true" or "false". Read/write. |
| static const char KEY_RECORDING_HINT[]; |
| |
| // Returns true if video snapshot is supported. That is, applications |
| // can call Camera.takePicture during recording. Applications do not need to |
| // call Camera.startPreview after taking a picture. The preview will be |
| // still active. Other than that, taking a picture during recording is |
| // identical to taking a picture normally. All settings and methods related |
| // to takePicture work identically. Ex: KEY_PICTURE_SIZE, |
| // KEY_SUPPORTED_PICTURE_SIZES, KEY_JPEG_QUALITY, KEY_ROTATION, and etc. |
| // The picture will have an EXIF header. FLASH_MODE_AUTO and FLASH_MODE_ON |
| // also still work, but the video will record the flash. |
| // |
| // Applications can set shutter callback as null to avoid the shutter |
| // sound. It is also recommended to set raw picture and post view callbacks |
| // to null to avoid the interrupt of preview display. |
| // |
| // Field-of-view of the recorded video may be different from that of the |
| // captured pictures. |
| // Example value: "true" or "false". Read only. |
| static const char KEY_VIDEO_SNAPSHOT_SUPPORTED[]; |
| |
| // The state of the video stabilization. If set to true, both the |
| // preview stream and the recorded video stream are stabilized by |
| // the camera. Only valid to set if KEY_VIDEO_STABILIZATION_SUPPORTED is |
| // set to true. |
| // |
| // The value of this key can be changed any time the camera is |
| // open. If preview or recording is active, it is acceptable for |
| // there to be a slight video glitch when video stabilization is |
| // toggled on and off. |
| // |
| // This only stabilizes video streams (between-frames stabilization), and |
| // has no effect on still image capture. |
| static const char KEY_VIDEO_STABILIZATION[]; |
| |
| // Returns true if video stabilization is supported. That is, applications |
| // can set KEY_VIDEO_STABILIZATION to true and have a stabilized preview |
| // stream and record stabilized videos. |
| static const char KEY_VIDEO_STABILIZATION_SUPPORTED[]; |
| |
| // Supported modes for special effects with light. |
| // Example values: "lowlight,hdr". |
| static const char KEY_LIGHTFX[]; |
| |
| // Value for KEY_ZOOM_SUPPORTED or KEY_SMOOTH_ZOOM_SUPPORTED. |
| static const char TRUE[]; |
| static const char FALSE[]; |
| |
| // Value for KEY_FOCUS_DISTANCES. |
| static const char FOCUS_DISTANCE_INFINITY[]; |
| |
| // Values for white balance settings. |
| static const char WHITE_BALANCE_AUTO[]; |
| static const char WHITE_BALANCE_INCANDESCENT[]; |
| static const char WHITE_BALANCE_FLUORESCENT[]; |
| static const char WHITE_BALANCE_WARM_FLUORESCENT[]; |
| static const char WHITE_BALANCE_DAYLIGHT[]; |
| static const char WHITE_BALANCE_CLOUDY_DAYLIGHT[]; |
| static const char WHITE_BALANCE_TWILIGHT[]; |
| static const char WHITE_BALANCE_SHADE[]; |
| |
| // Values for effect settings. |
| static const char EFFECT_NONE[]; |
| static const char EFFECT_MONO[]; |
| static const char EFFECT_NEGATIVE[]; |
| static const char EFFECT_SOLARIZE[]; |
| static const char EFFECT_SEPIA[]; |
| static const char EFFECT_POSTERIZE[]; |
| static const char EFFECT_WHITEBOARD[]; |
| static const char EFFECT_BLACKBOARD[]; |
| static const char EFFECT_AQUA[]; |
| |
| // Values for antibanding settings. |
| static const char ANTIBANDING_AUTO[]; |
| static const char ANTIBANDING_50HZ[]; |
| static const char ANTIBANDING_60HZ[]; |
| static const char ANTIBANDING_OFF[]; |
| |
| // Values for flash mode settings. |
| // Flash will not be fired. |
| static const char FLASH_MODE_OFF[]; |
| // Flash will be fired automatically when required. The flash may be fired |
| // during preview, auto-focus, or snapshot depending on the driver. |
| static const char FLASH_MODE_AUTO[]; |
| // Flash will always be fired during snapshot. The flash may also be |
| // fired during preview or auto-focus depending on the driver. |
| static const char FLASH_MODE_ON[]; |
| // Flash will be fired in red-eye reduction mode. |
| static const char FLASH_MODE_RED_EYE[]; |
| // Constant emission of light during preview, auto-focus and snapshot. |
| // This can also be used for video recording. |
| static const char FLASH_MODE_TORCH[]; |
| |
| // Values for scene mode settings. |
| static const char SCENE_MODE_AUTO[]; |
| static const char SCENE_MODE_ACTION[]; |
| static const char SCENE_MODE_PORTRAIT[]; |
| static const char SCENE_MODE_LANDSCAPE[]; |
| static const char SCENE_MODE_NIGHT[]; |
| static const char SCENE_MODE_NIGHT_PORTRAIT[]; |
| static const char SCENE_MODE_THEATRE[]; |
| static const char SCENE_MODE_BEACH[]; |
| static const char SCENE_MODE_SNOW[]; |
| static const char SCENE_MODE_SUNSET[]; |
| static const char SCENE_MODE_STEADYPHOTO[]; |
| static const char SCENE_MODE_FIREWORKS[]; |
| static const char SCENE_MODE_SPORTS[]; |
| static const char SCENE_MODE_PARTY[]; |
| static const char SCENE_MODE_CANDLELIGHT[]; |
| // Applications are looking for a barcode. Camera driver will be optimized |
| // for barcode reading. |
| static const char SCENE_MODE_BARCODE[]; |
| // A high-dynamic range mode. In this mode, the HAL module will use a |
| // capture strategy that extends the dynamic range of the captured |
| // image in some fashion. Only the final image is returned. |
| static const char SCENE_MODE_HDR[]; |
| |
| // Pixel color formats for KEY_PREVIEW_FORMAT, KEY_PICTURE_FORMAT, |
| // and KEY_VIDEO_FRAME_FORMAT |
| static const char PIXEL_FORMAT_YUV422SP[]; |
| static const char PIXEL_FORMAT_YUV420SP[]; // NV21 |
| static const char PIXEL_FORMAT_YUV422I[]; // YUY2 |
| static const char PIXEL_FORMAT_YUV420P[]; // YV12 |
| static const char PIXEL_FORMAT_RGB565[]; |
| static const char PIXEL_FORMAT_RGBA8888[]; |
| static const char PIXEL_FORMAT_JPEG[]; |
| // Raw bayer format used for images, which is 10 bit precision samples |
| // stored in 16 bit words. The filter pattern is RGGB. |
| static const char PIXEL_FORMAT_BAYER_RGGB[]; |
| // Pixel format is not known to the framework |
| static const char PIXEL_FORMAT_ANDROID_OPAQUE[]; |
| |
| // Values for focus mode settings. |
| // Auto-focus mode. Applications should call |
| // CameraHardwareInterface.autoFocus to start the focus in this mode. |
| static const char FOCUS_MODE_AUTO[]; |
| // Focus is set at infinity. Applications should not call |
| // CameraHardwareInterface.autoFocus in this mode. |
| static const char FOCUS_MODE_INFINITY[]; |
| // Macro (close-up) focus mode. Applications should call |
| // CameraHardwareInterface.autoFocus to start the focus in this mode. |
| static const char FOCUS_MODE_MACRO[]; |
| // Focus is fixed. The camera is always in this mode if the focus is not |
| // adjustable. If the camera has auto-focus, this mode can fix the |
| // focus, which is usually at hyperfocal distance. Applications should |
| // not call CameraHardwareInterface.autoFocus in this mode. |
| static const char FOCUS_MODE_FIXED[]; |
| // Extended depth of field (EDOF). Focusing is done digitally and |
| // continuously. Applications should not call |
| // CameraHardwareInterface.autoFocus in this mode. |
| static const char FOCUS_MODE_EDOF[]; |
| // Continuous auto focus mode intended for video recording. The camera |
| // continuously tries to focus. This is the best choice for video |
| // recording because the focus changes smoothly . Applications still can |
| // call CameraHardwareInterface.takePicture in this mode but the subject may |
| // not be in focus. Auto focus starts when the parameter is set. |
| // |
| // Applications can call CameraHardwareInterface.autoFocus in this mode. The |
| // focus callback will immediately return with a boolean that indicates |
| // whether the focus is sharp or not. The focus position is locked after |
| // autoFocus call. If applications want to resume the continuous focus, |
| // cancelAutoFocus must be called. Restarting the preview will not resume |
| // the continuous autofocus. To stop continuous focus, applications should |
| // change the focus mode to other modes. |
| static const char FOCUS_MODE_CONTINUOUS_VIDEO[]; |
| // Continuous auto focus mode intended for taking pictures. The camera |
| // continuously tries to focus. The speed of focus change is more aggressive |
| // than FOCUS_MODE_CONTINUOUS_VIDEO. Auto focus starts when the parameter is |
| // set. |
| // |
| // Applications can call CameraHardwareInterface.autoFocus in this mode. If |
| // the autofocus is in the middle of scanning, the focus callback will |
| // return when it completes. If the autofocus is not scanning, focus |
| // callback will immediately return with a boolean that indicates whether |
| // the focus is sharp or not. The apps can then decide if they want to take |
| // a picture immediately or to change the focus mode to auto, and run a full |
| // autofocus cycle. The focus position is locked after autoFocus call. If |
| // applications want to resume the continuous focus, cancelAutoFocus must be |
| // called. Restarting the preview will not resume the continuous autofocus. |
| // To stop continuous focus, applications should change the focus mode to |
| // other modes. |
| static const char FOCUS_MODE_CONTINUOUS_PICTURE[]; |
| |
| // Values for light special effects |
| // Low-light enhancement mode |
| static const char LIGHTFX_LOWLIGHT[]; |
| // High-dynamic range mode |
| static const char LIGHTFX_HDR[]; |
| |
| private: |
| DefaultKeyedVector<String8,String8> mMap; |
| }; |
| |
| }; // namespace android |
| |
| #endif |
