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/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
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// Third party copyrights are property of their respective owners.
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//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
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// This software is provided by the copyright holders and contributors "as is" and
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//M*/
#ifndef OPENCV_VIDEOIO_HPP
#define OPENCV_VIDEOIO_HPP
#include "opencv2/core.hpp"
/**
@defgroup videoio Video I/O
@brief Read and write video or images sequence with OpenCV
### See also:
- @ref videoio_overview
- Tutorials: @ref tutorial_table_of_content_videoio
@{
@defgroup videoio_flags_base Flags for video I/O
@defgroup videoio_flags_others Additional flags for video I/O API backends
@defgroup videoio_c C API for video I/O
@defgroup videoio_ios iOS glue for video I/O
@defgroup videoio_winrt WinRT glue for video I/O
@defgroup videoio_registry Query I/O API backends registry
@}
*/
////////////////////////////////// video io /////////////////////////////////
typedef struct CvCapture CvCapture;
typedef struct CvVideoWriter CvVideoWriter;
namespace cv
{
//! @addtogroup videoio
//! @{
//! @addtogroup videoio_flags_base
//! @{
/** @brief %VideoCapture API backends identifier.
Select preferred API for a capture object.
To be used in the VideoCapture::VideoCapture() constructor or VideoCapture::open()
@note Backends are available only if they have been built with your OpenCV binaries.
See @ref videoio_overview for more information.
*/
enum VideoCaptureAPIs {
CAP_ANY = 0, //!< Auto detect == 0
CAP_VFW = 200, //!< Video For Windows (obsolete, removed)
CAP_V4L = 200, //!< V4L/V4L2 capturing support
CAP_V4L2 = CAP_V4L, //!< Same as CAP_V4L
CAP_FIREWIRE = 300, //!< IEEE 1394 drivers
CAP_FIREWARE = CAP_FIREWIRE, //!< Same value as CAP_FIREWIRE
CAP_IEEE1394 = CAP_FIREWIRE, //!< Same value as CAP_FIREWIRE
CAP_DC1394 = CAP_FIREWIRE, //!< Same value as CAP_FIREWIRE
CAP_CMU1394 = CAP_FIREWIRE, //!< Same value as CAP_FIREWIRE
CAP_QT = 500, //!< QuickTime (obsolete, removed)
CAP_UNICAP = 600, //!< Unicap drivers (obsolete, removed)
CAP_DSHOW = 700, //!< DirectShow (via videoInput)
CAP_PVAPI = 800, //!< PvAPI, Prosilica GigE SDK
CAP_OPENNI = 900, //!< OpenNI (for Kinect)
CAP_OPENNI_ASUS = 910, //!< OpenNI (for Asus Xtion)
CAP_ANDROID = 1000, //!< Android - not used
CAP_XIAPI = 1100, //!< XIMEA Camera API
CAP_AVFOUNDATION = 1200, //!< AVFoundation framework for iOS (OS X Lion will have the same API)
CAP_GIGANETIX = 1300, //!< Smartek Giganetix GigEVisionSDK
CAP_MSMF = 1400, //!< Microsoft Media Foundation (via videoInput)
CAP_WINRT = 1410, //!< Microsoft Windows Runtime using Media Foundation
CAP_INTELPERC = 1500, //!< RealSense (former Intel Perceptual Computing SDK)
CAP_REALSENSE = 1500, //!< Synonym for CAP_INTELPERC
CAP_OPENNI2 = 1600, //!< OpenNI2 (for Kinect)
CAP_OPENNI2_ASUS = 1610, //!< OpenNI2 (for Asus Xtion and Occipital Structure sensors)
CAP_GPHOTO2 = 1700, //!< gPhoto2 connection
CAP_GSTREAMER = 1800, //!< GStreamer
CAP_FFMPEG = 1900, //!< Open and record video file or stream using the FFMPEG library
CAP_IMAGES = 2000, //!< OpenCV Image Sequence (e.g. img_%02d.jpg)
CAP_ARAVIS = 2100, //!< Aravis SDK
CAP_OPENCV_MJPEG = 2200, //!< Built-in OpenCV MotionJPEG codec
CAP_INTEL_MFX = 2300, //!< Intel MediaSDK
CAP_XINE = 2400, //!< XINE engine (Linux)
};
/** @brief %VideoCapture generic properties identifier.
Reading / writing properties involves many layers. Some unexpected result might happens along this chain.
Effective behaviour depends from device hardware, driver and API Backend.
@sa videoio_flags_others, VideoCapture::get(), VideoCapture::set()
*/
enum VideoCaptureProperties {
CAP_PROP_POS_MSEC =0, //!< Current position of the video file in milliseconds.
CAP_PROP_POS_FRAMES =1, //!< 0-based index of the frame to be decoded/captured next.
CAP_PROP_POS_AVI_RATIO =2, //!< Relative position of the video file: 0=start of the film, 1=end of the film.
CAP_PROP_FRAME_WIDTH =3, //!< Width of the frames in the video stream.
CAP_PROP_FRAME_HEIGHT =4, //!< Height of the frames in the video stream.
CAP_PROP_FPS =5, //!< Frame rate.
CAP_PROP_FOURCC =6, //!< 4-character code of codec. see VideoWriter::fourcc .
CAP_PROP_FRAME_COUNT =7, //!< Number of frames in the video file.
CAP_PROP_FORMAT =8, //!< Format of the %Mat objects (see Mat::type()) returned by VideoCapture::retrieve().
//!< Set value -1 to fetch undecoded RAW video streams (as Mat 8UC1).
CAP_PROP_MODE =9, //!< Backend-specific value indicating the current capture mode.
CAP_PROP_BRIGHTNESS =10, //!< Brightness of the image (only for those cameras that support).
CAP_PROP_CONTRAST =11, //!< Contrast of the image (only for cameras).
CAP_PROP_SATURATION =12, //!< Saturation of the image (only for cameras).
CAP_PROP_HUE =13, //!< Hue of the image (only for cameras).
CAP_PROP_GAIN =14, //!< Gain of the image (only for those cameras that support).
CAP_PROP_EXPOSURE =15, //!< Exposure (only for those cameras that support).
CAP_PROP_CONVERT_RGB =16, //!< Boolean flags indicating whether images should be converted to RGB.
CAP_PROP_WHITE_BALANCE_BLUE_U =17, //!< Currently unsupported.
CAP_PROP_RECTIFICATION =18, //!< Rectification flag for stereo cameras (note: only supported by DC1394 v 2.x backend currently).
CAP_PROP_MONOCHROME =19,
CAP_PROP_SHARPNESS =20,
CAP_PROP_AUTO_EXPOSURE =21, //!< DC1394: exposure control done by camera, user can adjust reference level using this feature.
CAP_PROP_GAMMA =22,
CAP_PROP_TEMPERATURE =23,
CAP_PROP_TRIGGER =24,
CAP_PROP_TRIGGER_DELAY =25,
CAP_PROP_WHITE_BALANCE_RED_V =26,
CAP_PROP_ZOOM =27,
CAP_PROP_FOCUS =28,
CAP_PROP_GUID =29,
CAP_PROP_ISO_SPEED =30,
CAP_PROP_BACKLIGHT =32,
CAP_PROP_PAN =33,
CAP_PROP_TILT =34,
CAP_PROP_ROLL =35,
CAP_PROP_IRIS =36,
CAP_PROP_SETTINGS =37, //!< Pop up video/camera filter dialog (note: only supported by DSHOW backend currently. The property value is ignored)
CAP_PROP_BUFFERSIZE =38,
CAP_PROP_AUTOFOCUS =39,
CAP_PROP_SAR_NUM =40, //!< Sample aspect ratio: num/den (num)
CAP_PROP_SAR_DEN =41, //!< Sample aspect ratio: num/den (den)
CAP_PROP_BACKEND =42, //!< Current backend (enum VideoCaptureAPIs). Read-only property
CAP_PROP_CHANNEL =43, //!< Video input or Channel Number (only for those cameras that support)
CAP_PROP_AUTO_WB =44, //!< enable/ disable auto white-balance
CAP_PROP_WB_TEMPERATURE=45, //!< white-balance color temperature
CAP_PROP_CODEC_PIXEL_FORMAT =46, //!< (read-only) codec's pixel format. 4-character code - see VideoWriter::fourcc . Subset of [AV_PIX_FMT_*](https://github.com/FFmpeg/FFmpeg/blob/master/libavcodec/raw.c) or -1 if unknown
#ifndef CV_DOXYGEN
CV__CAP_PROP_LATEST
#endif
};
/** @brief %VideoWriter generic properties identifier.
@sa VideoWriter::get(), VideoWriter::set()
*/
enum VideoWriterProperties {
VIDEOWRITER_PROP_QUALITY = 1, //!< Current quality (0..100%) of the encoded videostream. Can be adjusted dynamically in some codecs.
VIDEOWRITER_PROP_FRAMEBYTES = 2, //!< (Read-only): Size of just encoded video frame. Note that the encoding order may be different from representation order.
VIDEOWRITER_PROP_NSTRIPES = 3 //!< Number of stripes for parallel encoding. -1 for auto detection.
};
//! @} videoio_flags_base
//! @addtogroup videoio_flags_others
//! @{
/** @name IEEE 1394 drivers
@{
*/
/** @brief Modes of the IEEE 1394 controlling registers
(can be: auto, manual, auto single push, absolute Latter allowed with any other mode)
every feature can have only one mode turned on at a time
*/
enum { CAP_PROP_DC1394_OFF = -4, //!< turn the feature off (not controlled manually nor automatically).
CAP_PROP_DC1394_MODE_MANUAL = -3, //!< set automatically when a value of the feature is set by the user.
CAP_PROP_DC1394_MODE_AUTO = -2,
CAP_PROP_DC1394_MODE_ONE_PUSH_AUTO = -1,
CAP_PROP_DC1394_MAX = 31
};
//! @} IEEE 1394 drivers
/** @name OpenNI (for Kinect)
@{
*/
//! OpenNI map generators
enum { CAP_OPENNI_DEPTH_GENERATOR = 1 << 31,
CAP_OPENNI_IMAGE_GENERATOR = 1 << 30,
CAP_OPENNI_IR_GENERATOR = 1 << 29,
CAP_OPENNI_GENERATORS_MASK = CAP_OPENNI_DEPTH_GENERATOR + CAP_OPENNI_IMAGE_GENERATOR + CAP_OPENNI_IR_GENERATOR
};
//! Properties of cameras available through OpenNI backend
enum { CAP_PROP_OPENNI_OUTPUT_MODE = 100,
CAP_PROP_OPENNI_FRAME_MAX_DEPTH = 101, //!< In mm
CAP_PROP_OPENNI_BASELINE = 102, //!< In mm
CAP_PROP_OPENNI_FOCAL_LENGTH = 103, //!< In pixels
CAP_PROP_OPENNI_REGISTRATION = 104, //!< Flag that synchronizes the remapping depth map to image map
//!< by changing depth generator's view point (if the flag is "on") or
//!< sets this view point to its normal one (if the flag is "off").
CAP_PROP_OPENNI_REGISTRATION_ON = CAP_PROP_OPENNI_REGISTRATION,
CAP_PROP_OPENNI_APPROX_FRAME_SYNC = 105,
CAP_PROP_OPENNI_MAX_BUFFER_SIZE = 106,
CAP_PROP_OPENNI_CIRCLE_BUFFER = 107,
CAP_PROP_OPENNI_MAX_TIME_DURATION = 108,
CAP_PROP_OPENNI_GENERATOR_PRESENT = 109,
CAP_PROP_OPENNI2_SYNC = 110,
CAP_PROP_OPENNI2_MIRROR = 111
};
//! OpenNI shortcuts
enum { CAP_OPENNI_IMAGE_GENERATOR_PRESENT = CAP_OPENNI_IMAGE_GENERATOR + CAP_PROP_OPENNI_GENERATOR_PRESENT,
CAP_OPENNI_IMAGE_GENERATOR_OUTPUT_MODE = CAP_OPENNI_IMAGE_GENERATOR + CAP_PROP_OPENNI_OUTPUT_MODE,
CAP_OPENNI_DEPTH_GENERATOR_PRESENT = CAP_OPENNI_DEPTH_GENERATOR + CAP_PROP_OPENNI_GENERATOR_PRESENT,
CAP_OPENNI_DEPTH_GENERATOR_BASELINE = CAP_OPENNI_DEPTH_GENERATOR + CAP_PROP_OPENNI_BASELINE,
CAP_OPENNI_DEPTH_GENERATOR_FOCAL_LENGTH = CAP_OPENNI_DEPTH_GENERATOR + CAP_PROP_OPENNI_FOCAL_LENGTH,
CAP_OPENNI_DEPTH_GENERATOR_REGISTRATION = CAP_OPENNI_DEPTH_GENERATOR + CAP_PROP_OPENNI_REGISTRATION,
CAP_OPENNI_DEPTH_GENERATOR_REGISTRATION_ON = CAP_OPENNI_DEPTH_GENERATOR_REGISTRATION,
CAP_OPENNI_IR_GENERATOR_PRESENT = CAP_OPENNI_IR_GENERATOR + CAP_PROP_OPENNI_GENERATOR_PRESENT,
};
//! OpenNI data given from depth generator
enum { CAP_OPENNI_DEPTH_MAP = 0, //!< Depth values in mm (CV_16UC1)
CAP_OPENNI_POINT_CLOUD_MAP = 1, //!< XYZ in meters (CV_32FC3)
CAP_OPENNI_DISPARITY_MAP = 2, //!< Disparity in pixels (CV_8UC1)
CAP_OPENNI_DISPARITY_MAP_32F = 3, //!< Disparity in pixels (CV_32FC1)
CAP_OPENNI_VALID_DEPTH_MASK = 4, //!< CV_8UC1
CAP_OPENNI_BGR_IMAGE = 5, //!< Data given from RGB image generator
CAP_OPENNI_GRAY_IMAGE = 6, //!< Data given from RGB image generator
CAP_OPENNI_IR_IMAGE = 7 //!< Data given from IR image generator
};
//! Supported output modes of OpenNI image generator
enum { CAP_OPENNI_VGA_30HZ = 0,
CAP_OPENNI_SXGA_15HZ = 1,
CAP_OPENNI_SXGA_30HZ = 2,
CAP_OPENNI_QVGA_30HZ = 3,
CAP_OPENNI_QVGA_60HZ = 4
};
//! @} OpenNI
/** @name GStreamer
@{
*/
enum { CAP_PROP_GSTREAMER_QUEUE_LENGTH = 200 //!< Default is 1
};
//! @} GStreamer
/** @name PvAPI, Prosilica GigE SDK
@{
*/
//! PVAPI
enum { CAP_PROP_PVAPI_MULTICASTIP = 300, //!< IP for enable multicast master mode. 0 for disable multicast.
CAP_PROP_PVAPI_FRAMESTARTTRIGGERMODE = 301, //!< FrameStartTriggerMode: Determines how a frame is initiated.
CAP_PROP_PVAPI_DECIMATIONHORIZONTAL = 302, //!< Horizontal sub-sampling of the image.
CAP_PROP_PVAPI_DECIMATIONVERTICAL = 303, //!< Vertical sub-sampling of the image.
CAP_PROP_PVAPI_BINNINGX = 304, //!< Horizontal binning factor.
CAP_PROP_PVAPI_BINNINGY = 305, //!< Vertical binning factor.
CAP_PROP_PVAPI_PIXELFORMAT = 306 //!< Pixel format.
};
//! PVAPI: FrameStartTriggerMode
enum { CAP_PVAPI_FSTRIGMODE_FREERUN = 0, //!< Freerun
CAP_PVAPI_FSTRIGMODE_SYNCIN1 = 1, //!< SyncIn1
CAP_PVAPI_FSTRIGMODE_SYNCIN2 = 2, //!< SyncIn2
CAP_PVAPI_FSTRIGMODE_FIXEDRATE = 3, //!< FixedRate
CAP_PVAPI_FSTRIGMODE_SOFTWARE = 4 //!< Software
};
//! PVAPI: DecimationHorizontal, DecimationVertical
enum { CAP_PVAPI_DECIMATION_OFF = 1, //!< Off
CAP_PVAPI_DECIMATION_2OUTOF4 = 2, //!< 2 out of 4 decimation
CAP_PVAPI_DECIMATION_2OUTOF8 = 4, //!< 2 out of 8 decimation
CAP_PVAPI_DECIMATION_2OUTOF16 = 8 //!< 2 out of 16 decimation
};
//! PVAPI: PixelFormat
enum { CAP_PVAPI_PIXELFORMAT_MONO8 = 1, //!< Mono8
CAP_PVAPI_PIXELFORMAT_MONO16 = 2, //!< Mono16
CAP_PVAPI_PIXELFORMAT_BAYER8 = 3, //!< Bayer8
CAP_PVAPI_PIXELFORMAT_BAYER16 = 4, //!< Bayer16
CAP_PVAPI_PIXELFORMAT_RGB24 = 5, //!< Rgb24
CAP_PVAPI_PIXELFORMAT_BGR24 = 6, //!< Bgr24
CAP_PVAPI_PIXELFORMAT_RGBA32 = 7, //!< Rgba32
CAP_PVAPI_PIXELFORMAT_BGRA32 = 8, //!< Bgra32
};
//! @} PvAPI
/** @name XIMEA Camera API
@{
*/
//! Properties of cameras available through XIMEA SDK backend
enum { CAP_PROP_XI_DOWNSAMPLING = 400, //!< Change image resolution by binning or skipping.
CAP_PROP_XI_DATA_FORMAT = 401, //!< Output data format.
CAP_PROP_XI_OFFSET_X = 402, //!< Horizontal offset from the origin to the area of interest (in pixels).
CAP_PROP_XI_OFFSET_Y = 403, //!< Vertical offset from the origin to the area of interest (in pixels).
CAP_PROP_XI_TRG_SOURCE = 404, //!< Defines source of trigger.
CAP_PROP_XI_TRG_SOFTWARE = 405, //!< Generates an internal trigger. PRM_TRG_SOURCE must be set to TRG_SOFTWARE.
CAP_PROP_XI_GPI_SELECTOR = 406, //!< Selects general purpose input.
CAP_PROP_XI_GPI_MODE = 407, //!< Set general purpose input mode.
CAP_PROP_XI_GPI_LEVEL = 408, //!< Get general purpose level.
CAP_PROP_XI_GPO_SELECTOR = 409, //!< Selects general purpose output.
CAP_PROP_XI_GPO_MODE = 410, //!< Set general purpose output mode.
CAP_PROP_XI_LED_SELECTOR = 411, //!< Selects camera signalling LED.
CAP_PROP_XI_LED_MODE = 412, //!< Define camera signalling LED functionality.
CAP_PROP_XI_MANUAL_WB = 413, //!< Calculates White Balance(must be called during acquisition).
CAP_PROP_XI_AUTO_WB = 414, //!< Automatic white balance.
CAP_PROP_XI_AEAG = 415, //!< Automatic exposure/gain.
CAP_PROP_XI_EXP_PRIORITY = 416, //!< Exposure priority (0.5 - exposure 50%, gain 50%).
CAP_PROP_XI_AE_MAX_LIMIT = 417, //!< Maximum limit of exposure in AEAG procedure.
CAP_PROP_XI_AG_MAX_LIMIT = 418, //!< Maximum limit of gain in AEAG procedure.
CAP_PROP_XI_AEAG_LEVEL = 419, //!< Average intensity of output signal AEAG should achieve(in %).
CAP_PROP_XI_TIMEOUT = 420, //!< Image capture timeout in milliseconds.
CAP_PROP_XI_EXPOSURE = 421, //!< Exposure time in microseconds.
CAP_PROP_XI_EXPOSURE_BURST_COUNT = 422, //!< Sets the number of times of exposure in one frame.
CAP_PROP_XI_GAIN_SELECTOR = 423, //!< Gain selector for parameter Gain allows to select different type of gains.
CAP_PROP_XI_GAIN = 424, //!< Gain in dB.
CAP_PROP_XI_DOWNSAMPLING_TYPE = 426, //!< Change image downsampling type.
CAP_PROP_XI_BINNING_SELECTOR = 427, //!< Binning engine selector.
CAP_PROP_XI_BINNING_VERTICAL = 428, //!< Vertical Binning - number of vertical photo-sensitive cells to combine together.
CAP_PROP_XI_BINNING_HORIZONTAL = 429, //!< Horizontal Binning - number of horizontal photo-sensitive cells to combine together.
CAP_PROP_XI_BINNING_PATTERN = 430, //!< Binning pattern type.
CAP_PROP_XI_DECIMATION_SELECTOR = 431, //!< Decimation engine selector.
CAP_PROP_XI_DECIMATION_VERTICAL = 432, //!< Vertical Decimation - vertical sub-sampling of the image - reduces the vertical resolution of the image by the specified vertical decimation factor.
CAP_PROP_XI_DECIMATION_HORIZONTAL = 433, //!< Horizontal Decimation - horizontal sub-sampling of the image - reduces the horizontal resolution of the image by the specified vertical decimation factor.
CAP_PROP_XI_DECIMATION_PATTERN = 434, //!< Decimation pattern type.
CAP_PROP_XI_TEST_PATTERN_GENERATOR_SELECTOR = 587, //!< Selects which test pattern generator is controlled by the TestPattern feature.
CAP_PROP_XI_TEST_PATTERN = 588, //!< Selects which test pattern type is generated by the selected generator.
CAP_PROP_XI_IMAGE_DATA_FORMAT = 435, //!< Output data format.
CAP_PROP_XI_SHUTTER_TYPE = 436, //!< Change sensor shutter type(CMOS sensor).
CAP_PROP_XI_SENSOR_TAPS = 437, //!< Number of taps.
CAP_PROP_XI_AEAG_ROI_OFFSET_X = 439, //!< Automatic exposure/gain ROI offset X.
CAP_PROP_XI_AEAG_ROI_OFFSET_Y = 440, //!< Automatic exposure/gain ROI offset Y.
CAP_PROP_XI_AEAG_ROI_WIDTH = 441, //!< Automatic exposure/gain ROI Width.
CAP_PROP_XI_AEAG_ROI_HEIGHT = 442, //!< Automatic exposure/gain ROI Height.
CAP_PROP_XI_BPC = 445, //!< Correction of bad pixels.
CAP_PROP_XI_WB_KR = 448, //!< White balance red coefficient.
CAP_PROP_XI_WB_KG = 449, //!< White balance green coefficient.
CAP_PROP_XI_WB_KB = 450, //!< White balance blue coefficient.
CAP_PROP_XI_WIDTH = 451, //!< Width of the Image provided by the device (in pixels).
CAP_PROP_XI_HEIGHT = 452, //!< Height of the Image provided by the device (in pixels).
CAP_PROP_XI_REGION_SELECTOR = 589, //!< Selects Region in Multiple ROI which parameters are set by width, height, ... ,region mode.
CAP_PROP_XI_REGION_MODE = 595, //!< Activates/deactivates Region selected by Region Selector.
CAP_PROP_XI_LIMIT_BANDWIDTH = 459, //!< Set/get bandwidth(datarate)(in Megabits).
CAP_PROP_XI_SENSOR_DATA_BIT_DEPTH = 460, //!< Sensor output data bit depth.
CAP_PROP_XI_OUTPUT_DATA_BIT_DEPTH = 461, //!< Device output data bit depth.
CAP_PROP_XI_IMAGE_DATA_BIT_DEPTH = 462, //!< bitdepth of data returned by function xiGetImage.
CAP_PROP_XI_OUTPUT_DATA_PACKING = 463, //!< Device output data packing (or grouping) enabled. Packing could be enabled if output_data_bit_depth > 8 and packing capability is available.
CAP_PROP_XI_OUTPUT_DATA_PACKING_TYPE = 464, //!< Data packing type. Some cameras supports only specific packing type.
CAP_PROP_XI_IS_COOLED = 465, //!< Returns 1 for cameras that support cooling.
CAP_PROP_XI_COOLING = 466, //!< Start camera cooling.
CAP_PROP_XI_TARGET_TEMP = 467, //!< Set sensor target temperature for cooling.
CAP_PROP_XI_CHIP_TEMP = 468, //!< Camera sensor temperature.
CAP_PROP_XI_HOUS_TEMP = 469, //!< Camera housing temperature.
CAP_PROP_XI_HOUS_BACK_SIDE_TEMP = 590, //!< Camera housing back side temperature.
CAP_PROP_XI_SENSOR_BOARD_TEMP = 596, //!< Camera sensor board temperature.
CAP_PROP_XI_CMS = 470, //!< Mode of color management system.
CAP_PROP_XI_APPLY_CMS = 471, //!< Enable applying of CMS profiles to xiGetImage (see XI_PRM_INPUT_CMS_PROFILE, XI_PRM_OUTPUT_CMS_PROFILE).
CAP_PROP_XI_IMAGE_IS_COLOR = 474, //!< Returns 1 for color cameras.
CAP_PROP_XI_COLOR_FILTER_ARRAY = 475, //!< Returns color filter array type of RAW data.
CAP_PROP_XI_GAMMAY = 476, //!< Luminosity gamma.
CAP_PROP_XI_GAMMAC = 477, //!< Chromaticity gamma.
CAP_PROP_XI_SHARPNESS = 478, //!< Sharpness Strength.
CAP_PROP_XI_CC_MATRIX_00 = 479, //!< Color Correction Matrix element [0][0].
CAP_PROP_XI_CC_MATRIX_01 = 480, //!< Color Correction Matrix element [0][1].
CAP_PROP_XI_CC_MATRIX_02 = 481, //!< Color Correction Matrix element [0][2].
CAP_PROP_XI_CC_MATRIX_03 = 482, //!< Color Correction Matrix element [0][3].
CAP_PROP_XI_CC_MATRIX_10 = 483, //!< Color Correction Matrix element [1][0].
CAP_PROP_XI_CC_MATRIX_11 = 484, //!< Color Correction Matrix element [1][1].
CAP_PROP_XI_CC_MATRIX_12 = 485, //!< Color Correction Matrix element [1][2].
CAP_PROP_XI_CC_MATRIX_13 = 486, //!< Color Correction Matrix element [1][3].
CAP_PROP_XI_CC_MATRIX_20 = 487, //!< Color Correction Matrix element [2][0].
CAP_PROP_XI_CC_MATRIX_21 = 488, //!< Color Correction Matrix element [2][1].
CAP_PROP_XI_CC_MATRIX_22 = 489, //!< Color Correction Matrix element [2][2].
CAP_PROP_XI_CC_MATRIX_23 = 490, //!< Color Correction Matrix element [2][3].
CAP_PROP_XI_CC_MATRIX_30 = 491, //!< Color Correction Matrix element [3][0].
CAP_PROP_XI_CC_MATRIX_31 = 492, //!< Color Correction Matrix element [3][1].
CAP_PROP_XI_CC_MATRIX_32 = 493, //!< Color Correction Matrix element [3][2].
CAP_PROP_XI_CC_MATRIX_33 = 494, //!< Color Correction Matrix element [3][3].
CAP_PROP_XI_DEFAULT_CC_MATRIX = 495, //!< Set default Color Correction Matrix.
CAP_PROP_XI_TRG_SELECTOR = 498, //!< Selects the type of trigger.
CAP_PROP_XI_ACQ_FRAME_BURST_COUNT = 499, //!< Sets number of frames acquired by burst. This burst is used only if trigger is set to FrameBurstStart.
CAP_PROP_XI_DEBOUNCE_EN = 507, //!< Enable/Disable debounce to selected GPI.
CAP_PROP_XI_DEBOUNCE_T0 = 508, //!< Debounce time (x * 10us).
CAP_PROP_XI_DEBOUNCE_T1 = 509, //!< Debounce time (x * 10us).
CAP_PROP_XI_DEBOUNCE_POL = 510, //!< Debounce polarity (pol = 1 t0 - falling edge, t1 - rising edge).
CAP_PROP_XI_LENS_MODE = 511, //!< Status of lens control interface. This shall be set to XI_ON before any Lens operations.
CAP_PROP_XI_LENS_APERTURE_VALUE = 512, //!< Current lens aperture value in stops. Examples: 2.8, 4, 5.6, 8, 11.
CAP_PROP_XI_LENS_FOCUS_MOVEMENT_VALUE = 513, //!< Lens current focus movement value to be used by XI_PRM_LENS_FOCUS_MOVE in motor steps.
CAP_PROP_XI_LENS_FOCUS_MOVE = 514, //!< Moves lens focus motor by steps set in XI_PRM_LENS_FOCUS_MOVEMENT_VALUE.
CAP_PROP_XI_LENS_FOCUS_DISTANCE = 515, //!< Lens focus distance in cm.
CAP_PROP_XI_LENS_FOCAL_LENGTH = 516, //!< Lens focal distance in mm.
CAP_PROP_XI_LENS_FEATURE_SELECTOR = 517, //!< Selects the current feature which is accessible by XI_PRM_LENS_FEATURE.
CAP_PROP_XI_LENS_FEATURE = 518, //!< Allows access to lens feature value currently selected by XI_PRM_LENS_FEATURE_SELECTOR.
CAP_PROP_XI_DEVICE_MODEL_ID = 521, //!< Returns device model id.
CAP_PROP_XI_DEVICE_SN = 522, //!< Returns device serial number.
CAP_PROP_XI_IMAGE_DATA_FORMAT_RGB32_ALPHA = 529, //!< The alpha channel of RGB32 output image format.
CAP_PROP_XI_IMAGE_PAYLOAD_SIZE = 530, //!< Buffer size in bytes sufficient for output image returned by xiGetImage.
CAP_PROP_XI_TRANSPORT_PIXEL_FORMAT = 531, //!< Current format of pixels on transport layer.
CAP_PROP_XI_SENSOR_CLOCK_FREQ_HZ = 532, //!< Sensor clock frequency in Hz.
CAP_PROP_XI_SENSOR_CLOCK_FREQ_INDEX = 533, //!< Sensor clock frequency index. Sensor with selected frequencies have possibility to set the frequency only by this index.
CAP_PROP_XI_SENSOR_OUTPUT_CHANNEL_COUNT = 534, //!< Number of output channels from sensor used for data transfer.
CAP_PROP_XI_FRAMERATE = 535, //!< Define framerate in Hz.
CAP_PROP_XI_COUNTER_SELECTOR = 536, //!< Select counter.
CAP_PROP_XI_COUNTER_VALUE = 537, //!< Counter status.
CAP_PROP_XI_ACQ_TIMING_MODE = 538, //!< Type of sensor frames timing.
CAP_PROP_XI_AVAILABLE_BANDWIDTH = 539, //!< Calculate and returns available interface bandwidth(int Megabits).
CAP_PROP_XI_BUFFER_POLICY = 540, //!< Data move policy.
CAP_PROP_XI_LUT_EN = 541, //!< Activates LUT.
CAP_PROP_XI_LUT_INDEX = 542, //!< Control the index (offset) of the coefficient to access in the LUT.
CAP_PROP_XI_LUT_VALUE = 543, //!< Value at entry LUTIndex of the LUT.
CAP_PROP_XI_TRG_DELAY = 544, //!< Specifies the delay in microseconds (us) to apply after the trigger reception before activating it.
CAP_PROP_XI_TS_RST_MODE = 545, //!< Defines how time stamp reset engine will be armed.
CAP_PROP_XI_TS_RST_SOURCE = 546, //!< Defines which source will be used for timestamp reset. Writing this parameter will trigger settings of engine (arming).
CAP_PROP_XI_IS_DEVICE_EXIST = 547, //!< Returns 1 if camera connected and works properly.
CAP_PROP_XI_ACQ_BUFFER_SIZE = 548, //!< Acquisition buffer size in buffer_size_unit. Default bytes.
CAP_PROP_XI_ACQ_BUFFER_SIZE_UNIT = 549, //!< Acquisition buffer size unit in bytes. Default 1. E.g. Value 1024 means that buffer_size is in KiBytes.
CAP_PROP_XI_ACQ_TRANSPORT_BUFFER_SIZE = 550, //!< Acquisition transport buffer size in bytes.
CAP_PROP_XI_BUFFERS_QUEUE_SIZE = 551, //!< Queue of field/frame buffers.
CAP_PROP_XI_ACQ_TRANSPORT_BUFFER_COMMIT = 552, //!< Number of buffers to commit to low level.
CAP_PROP_XI_RECENT_FRAME = 553, //!< GetImage returns most recent frame.
CAP_PROP_XI_DEVICE_RESET = 554, //!< Resets the camera to default state.
CAP_PROP_XI_COLUMN_FPN_CORRECTION = 555, //!< Correction of column FPN.
CAP_PROP_XI_ROW_FPN_CORRECTION = 591, //!< Correction of row FPN.
CAP_PROP_XI_SENSOR_MODE = 558, //!< Current sensor mode. Allows to select sensor mode by one integer. Setting of this parameter affects: image dimensions and downsampling.
CAP_PROP_XI_HDR = 559, //!< Enable High Dynamic Range feature.
CAP_PROP_XI_HDR_KNEEPOINT_COUNT = 560, //!< The number of kneepoints in the PWLR.
CAP_PROP_XI_HDR_T1 = 561, //!< Position of first kneepoint(in % of XI_PRM_EXPOSURE).
CAP_PROP_XI_HDR_T2 = 562, //!< Position of second kneepoint (in % of XI_PRM_EXPOSURE).
CAP_PROP_XI_KNEEPOINT1 = 563, //!< Value of first kneepoint (% of sensor saturation).
CAP_PROP_XI_KNEEPOINT2 = 564, //!< Value of second kneepoint (% of sensor saturation).
CAP_PROP_XI_IMAGE_BLACK_LEVEL = 565, //!< Last image black level counts. Can be used for Offline processing to recall it.
CAP_PROP_XI_HW_REVISION = 571, //!< Returns hardware revision number.
CAP_PROP_XI_DEBUG_LEVEL = 572, //!< Set debug level.
CAP_PROP_XI_AUTO_BANDWIDTH_CALCULATION = 573, //!< Automatic bandwidth calculation.
CAP_PROP_XI_FFS_FILE_ID = 594, //!< File number.
CAP_PROP_XI_FFS_FILE_SIZE = 580, //!< Size of file.
CAP_PROP_XI_FREE_FFS_SIZE = 581, //!< Size of free camera FFS.
CAP_PROP_XI_USED_FFS_SIZE = 582, //!< Size of used camera FFS.
CAP_PROP_XI_FFS_ACCESS_KEY = 583, //!< Setting of key enables file operations on some cameras.
CAP_PROP_XI_SENSOR_FEATURE_SELECTOR = 585, //!< Selects the current feature which is accessible by XI_PRM_SENSOR_FEATURE_VALUE.
CAP_PROP_XI_SENSOR_FEATURE_VALUE = 586, //!< Allows access to sensor feature value currently selected by XI_PRM_SENSOR_FEATURE_SELECTOR.
};
//! @} XIMEA
/** @name AVFoundation framework for iOS
OS X Lion will have the same API
@{
*/
//! Properties of cameras available through AVFOUNDATION backend
enum { CAP_PROP_IOS_DEVICE_FOCUS = 9001,
CAP_PROP_IOS_DEVICE_EXPOSURE = 9002,
CAP_PROP_IOS_DEVICE_FLASH = 9003,
CAP_PROP_IOS_DEVICE_WHITEBALANCE = 9004,
CAP_PROP_IOS_DEVICE_TORCH = 9005
};
/** @name Smartek Giganetix GigEVisionSDK
@{
*/
//! Properties of cameras available through Smartek Giganetix Ethernet Vision backend
/* --- Vladimir Litvinenko (litvinenko.vladimir@gmail.com) --- */
enum { CAP_PROP_GIGA_FRAME_OFFSET_X = 10001,
CAP_PROP_GIGA_FRAME_OFFSET_Y = 10002,
CAP_PROP_GIGA_FRAME_WIDTH_MAX = 10003,
CAP_PROP_GIGA_FRAME_HEIGH_MAX = 10004,
CAP_PROP_GIGA_FRAME_SENS_WIDTH = 10005,
CAP_PROP_GIGA_FRAME_SENS_HEIGH = 10006
};
//! @} Smartek
/** @name Intel Perceptual Computing SDK
@{
*/
enum { CAP_PROP_INTELPERC_PROFILE_COUNT = 11001,
CAP_PROP_INTELPERC_PROFILE_IDX = 11002,
CAP_PROP_INTELPERC_DEPTH_LOW_CONFIDENCE_VALUE = 11003,
CAP_PROP_INTELPERC_DEPTH_SATURATION_VALUE = 11004,
CAP_PROP_INTELPERC_DEPTH_CONFIDENCE_THRESHOLD = 11005,
CAP_PROP_INTELPERC_DEPTH_FOCAL_LENGTH_HORZ = 11006,
CAP_PROP_INTELPERC_DEPTH_FOCAL_LENGTH_VERT = 11007
};
//! Intel Perceptual Streams
enum { CAP_INTELPERC_DEPTH_GENERATOR = 1 << 29,
CAP_INTELPERC_IMAGE_GENERATOR = 1 << 28,
CAP_INTELPERC_IR_GENERATOR = 1 << 27,
CAP_INTELPERC_GENERATORS_MASK = CAP_INTELPERC_DEPTH_GENERATOR + CAP_INTELPERC_IMAGE_GENERATOR + CAP_INTELPERC_IR_GENERATOR
};
enum { CAP_INTELPERC_DEPTH_MAP = 0, //!< Each pixel is a 16-bit integer. The value indicates the distance from an object to the camera's XY plane or the Cartesian depth.
CAP_INTELPERC_UVDEPTH_MAP = 1, //!< Each pixel contains two 32-bit floating point values in the range of 0-1, representing the mapping of depth coordinates to the color coordinates.
CAP_INTELPERC_IR_MAP = 2, //!< Each pixel is a 16-bit integer. The value indicates the intensity of the reflected laser beam.
CAP_INTELPERC_IMAGE = 3
};
//! @} Intel Perceptual
/** @name gPhoto2 connection
@{
*/
/** @brief gPhoto2 properties
If `propertyId` is less than 0 then work on widget with that __additive inversed__ camera setting ID
Get IDs by using CAP_PROP_GPHOTO2_WIDGET_ENUMERATE.
@see CvCaptureCAM_GPHOTO2 for more info
*/
enum { CAP_PROP_GPHOTO2_PREVIEW = 17001, //!< Capture only preview from liveview mode.
CAP_PROP_GPHOTO2_WIDGET_ENUMERATE = 17002, //!< Readonly, returns (const char *).
CAP_PROP_GPHOTO2_RELOAD_CONFIG = 17003, //!< Trigger, only by set. Reload camera settings.
CAP_PROP_GPHOTO2_RELOAD_ON_CHANGE = 17004, //!< Reload all settings on set.
CAP_PROP_GPHOTO2_COLLECT_MSGS = 17005, //!< Collect messages with details.
CAP_PROP_GPHOTO2_FLUSH_MSGS = 17006, //!< Readonly, returns (const char *).
CAP_PROP_SPEED = 17007, //!< Exposure speed. Can be readonly, depends on camera program.
CAP_PROP_APERTURE = 17008, //!< Aperture. Can be readonly, depends on camera program.
CAP_PROP_EXPOSUREPROGRAM = 17009, //!< Camera exposure program.
CAP_PROP_VIEWFINDER = 17010 //!< Enter liveview mode.
};
//! @} gPhoto2
/** @name Images backend
@{
*/
/** @brief Images backend properties
*/
enum { CAP_PROP_IMAGES_BASE = 18000,
CAP_PROP_IMAGES_LAST = 19000 // excluding
};
//! @} Images
//! @} videoio_flags_others
class IVideoCapture;
//! @cond IGNORED
namespace internal { class VideoCapturePrivateAccessor; }
//! @endcond IGNORED
/** @brief Class for video capturing from video files, image sequences or cameras.
The class provides C++ API for capturing video from cameras or for reading video files and image sequences.
Here is how the class can be used:
@include samples/cpp/videocapture_basic.cpp
@note In @ref videoio_c "C API" the black-box structure `CvCapture` is used instead of %VideoCapture.
@note
- (C++) A basic sample on using the %VideoCapture interface can be found at
`OPENCV_SOURCE_CODE/samples/cpp/videocapture_starter.cpp`
- (Python) A basic sample on using the %VideoCapture interface can be found at
`OPENCV_SOURCE_CODE/samples/python/video.py`
- (Python) A multi threaded video processing sample can be found at
`OPENCV_SOURCE_CODE/samples/python/video_threaded.py`
- (Python) %VideoCapture sample showcasing some features of the Video4Linux2 backend
`OPENCV_SOURCE_CODE/samples/python/video_v4l2.py`
*/
class CV_EXPORTS_W VideoCapture
{
public:
/** @brief Default constructor
@note In @ref videoio_c "C API", when you finished working with video, release CvCapture structure with
cvReleaseCapture(), or use Ptr\<CvCapture\> that calls cvReleaseCapture() automatically in the
destructor.
*/
CV_WRAP VideoCapture();
/** @overload
@brief Opens a video file or a capturing device or an IP video stream for video capturing with API Preference
@param filename it can be:
- name of video file (eg. `video.avi`)
- or image sequence (eg. `img_%02d.jpg`, which will read samples like `img_00.jpg, img_01.jpg, img_02.jpg, ...`)
- or URL of video stream (eg. `protocol://host:port/script_name?script_params|auth`).
Note that each video stream or IP camera feed has its own URL scheme. Please refer to the
documentation of source stream to know the right URL.
@param apiPreference preferred Capture API backends to use. Can be used to enforce a specific reader
implementation if multiple are available: e.g. cv::CAP_FFMPEG or cv::CAP_IMAGES or cv::CAP_DSHOW.
@sa The list of supported API backends cv::VideoCaptureAPIs
*/
CV_WRAP VideoCapture(const String& filename, int apiPreference = CAP_ANY);
/** @overload
@brief Opens a camera for video capturing
@param index id of the video capturing device to open. To open default camera using default backend just pass 0.
(to backward compatibility usage of camera_id + domain_offset (CAP_*) is valid when apiPreference is CAP_ANY)
@param apiPreference preferred Capture API backends to use. Can be used to enforce a specific reader
implementation if multiple are available: e.g. cv::CAP_DSHOW or cv::CAP_MSMF or cv::CAP_V4L.
@sa The list of supported API backends cv::VideoCaptureAPIs
*/
CV_WRAP VideoCapture(int index, int apiPreference = CAP_ANY);
/** @brief Default destructor
The method first calls VideoCapture::release to close the already opened file or camera.
*/
virtual ~VideoCapture();
/** @brief Opens a video file or a capturing device or an IP video stream for video capturing.
@overload
Parameters are same as the constructor VideoCapture(const String& filename, int apiPreference = CAP_ANY)
@return `true` if the file has been successfully opened
The method first calls VideoCapture::release to close the already opened file or camera.
*/
CV_WRAP virtual bool open(const String& filename, int apiPreference = CAP_ANY);
/** @brief Opens a camera for video capturing
@overload
Parameters are same as the constructor VideoCapture(int index, int apiPreference = CAP_ANY)
@return `true` if the camera has been successfully opened.
The method first calls VideoCapture::release to close the already opened file or camera.
*/
CV_WRAP virtual bool open(int index, int apiPreference = CAP_ANY);
/** @brief Returns true if video capturing has been initialized already.
If the previous call to VideoCapture constructor or VideoCapture::open() succeeded, the method returns
true.
*/
CV_WRAP virtual bool isOpened() const;
/** @brief Closes video file or capturing device.
The method is automatically called by subsequent VideoCapture::open and by VideoCapture
destructor.
The C function also deallocates memory and clears \*capture pointer.
*/
CV_WRAP virtual void release();
/** @brief Grabs the next frame from video file or capturing device.
@return `true` (non-zero) in the case of success.
The method/function grabs the next frame from video file or camera and returns true (non-zero) in
the case of success.
The primary use of the function is in multi-camera environments, especially when the cameras do not
have hardware synchronization. That is, you call VideoCapture::grab() for each camera and after that
call the slower method VideoCapture::retrieve() to decode and get frame from each camera. This way
the overhead on demosaicing or motion jpeg decompression etc. is eliminated and the retrieved frames
from different cameras will be closer in time.
Also, when a connected camera is multi-head (for example, a stereo camera or a Kinect device), the
correct way of retrieving data from it is to call VideoCapture::grab() first and then call
VideoCapture::retrieve() one or more times with different values of the channel parameter.
@ref tutorial_kinect_openni
*/
CV_WRAP virtual bool grab();
/** @brief Decodes and returns the grabbed video frame.
@param [out] image the video frame is returned here. If no frames has been grabbed the image will be empty.
@param flag it could be a frame index or a driver specific flag
@return `false` if no frames has been grabbed
The method decodes and returns the just grabbed frame. If no frames has been grabbed
(camera has been disconnected, or there are no more frames in video file), the method returns false
and the function returns an empty image (with %cv::Mat, test it with Mat::empty()).
@sa read()
@note In @ref videoio_c "C API", functions cvRetrieveFrame() and cv.RetrieveFrame() return image stored inside the video
capturing structure. It is not allowed to modify or release the image! You can copy the frame using
cvCloneImage and then do whatever you want with the copy.
*/
CV_WRAP virtual bool retrieve(OutputArray image, int flag = 0);
/** @brief Stream operator to read the next video frame.
@sa read()
*/
virtual VideoCapture& operator >> (CV_OUT Mat& image);
/** @overload
@sa read()
*/
virtual VideoCapture& operator >> (CV_OUT UMat& image);
/** @brief Grabs, decodes and returns the next video frame.
@param [out] image the video frame is returned here. If no frames has been grabbed the image will be empty.
@return `false` if no frames has been grabbed
The method/function combines VideoCapture::grab() and VideoCapture::retrieve() in one call. This is the
most convenient method for reading video files or capturing data from decode and returns the just
grabbed frame. If no frames has been grabbed (camera has been disconnected, or there are no more
frames in video file), the method returns false and the function returns empty image (with %cv::Mat, test it with Mat::empty()).
@note In @ref videoio_c "C API", functions cvRetrieveFrame() and cv.RetrieveFrame() return image stored inside the video
capturing structure. It is not allowed to modify or release the image! You can copy the frame using
cvCloneImage and then do whatever you want with the copy.
*/
CV_WRAP virtual bool read(OutputArray image);
/** @brief Sets a property in the VideoCapture.
@param propId Property identifier from cv::VideoCaptureProperties (eg. cv::CAP_PROP_POS_MSEC, cv::CAP_PROP_POS_FRAMES, ...)
or one from @ref videoio_flags_others
@param value Value of the property.
@return `true` if the property is supported by backend used by the VideoCapture instance.
@note Even if it returns `true` this doesn't ensure that the property
value has been accepted by the capture device. See note in VideoCapture::get()
*/
CV_WRAP virtual bool set(int propId, double value);
/** @brief Returns the specified VideoCapture property
@param propId Property identifier from cv::VideoCaptureProperties (eg. cv::CAP_PROP_POS_MSEC, cv::CAP_PROP_POS_FRAMES, ...)
or one from @ref videoio_flags_others
@return Value for the specified property. Value 0 is returned when querying a property that is
not supported by the backend used by the VideoCapture instance.
@note Reading / writing properties involves many layers. Some unexpected result might happens
along this chain.
@code{.txt}
VideoCapture -> API Backend -> Operating System -> Device Driver -> Device Hardware
@endcode
The returned value might be different from what really used by the device or it could be encoded
using device dependent rules (eg. steps or percentage). Effective behaviour depends from device
driver and API Backend
*/
CV_WRAP virtual double get(int propId) const;
/** @brief Returns used backend API name
@note Stream should be opened.
*/
CV_WRAP String getBackendName() const;
/** Switches exceptions mode
*
* methods raise exceptions if not successful instead of returning an error code
*/
CV_WRAP void setExceptionMode(bool enable) { throwOnFail = enable; }
/// query if exception mode is active
CV_WRAP bool getExceptionMode() { return throwOnFail; }
/** @brief Wait for ready frames from VideoCapture.
@param streams input video streams
@param readyIndex stream indexes with grabbed frames (ready to use .retrieve() to fetch actual frame)
@param timeoutNs number of nanoseconds (0 - infinite)
@return `true` if streamReady is not empty
@throws Exception %Exception on stream errors (check .isOpened() to filter out malformed streams) or VideoCapture type is not supported
The primary use of the function is in multi-camera environments.
The method fills the ready state vector, grabbs video frame, if camera is ready.
After this call use VideoCapture::retrieve() to decode and fetch frame data.
*/
static /*CV_WRAP*/
bool waitAny(
const std::vector<VideoCapture>& streams,
CV_OUT std::vector<int>& readyIndex,
int64 timeoutNs = 0);
protected:
Ptr<CvCapture> cap;
Ptr<IVideoCapture> icap;
bool throwOnFail;
friend class internal::VideoCapturePrivateAccessor;
};
class IVideoWriter;
/** @example samples/cpp/tutorial_code/videoio/video-write/video-write.cpp
Check @ref tutorial_video_write "the corresponding tutorial" for more details
*/
/** @example samples/cpp/videowriter_basic.cpp
An example using VideoCapture and VideoWriter class
*/
/** @brief Video writer class.
The class provides C++ API for writing video files or image sequences.
*/
class CV_EXPORTS_W VideoWriter
{
public:
/** @brief Default constructors
The constructors/functions initialize video writers.
- On Linux FFMPEG is used to write videos;
- On Windows FFMPEG or MSWF or DSHOW is used;
- On MacOSX AVFoundation is used.
*/
CV_WRAP VideoWriter();
/** @overload
@param filename Name of the output video file.
@param fourcc 4-character code of codec used to compress the frames. For example,
VideoWriter::fourcc('P','I','M','1') is a MPEG-1 codec, VideoWriter::fourcc('M','J','P','G') is a
motion-jpeg codec etc. List of codes can be obtained at [Video Codecs by
FOURCC](http://www.fourcc.org/codecs.php) page. FFMPEG backend with MP4 container natively uses
other values as fourcc code: see [ObjectType](http://www.mp4ra.org/codecs.html),
so you may receive a warning message from OpenCV about fourcc code conversion.
@param fps Framerate of the created video stream.
@param frameSize Size of the video frames.
@param isColor If it is not zero, the encoder will expect and encode color frames, otherwise it
will work with grayscale frames (the flag is currently supported on Windows only).
@b Tips:
- With some backends `fourcc=-1` pops up the codec selection dialog from the system.
- To save image sequence use a proper filename (eg. `img_%02d.jpg`) and `fourcc=0`
OR `fps=0`. Use uncompressed image format (eg. `img_%02d.BMP`) to save raw frames.
- Most codecs are lossy. If you want lossless video file you need to use a lossless codecs
(eg. FFMPEG FFV1, Huffman HFYU, Lagarith LAGS, etc...)
- If FFMPEG is enabled, using `codec=0; fps=0;` you can create an uncompressed (raw) video file.
*/
CV_WRAP VideoWriter(const String& filename, int fourcc, double fps,
Size frameSize, bool isColor = true);
/** @overload
The `apiPreference` parameter allows to specify API backends to use. Can be used to enforce a specific reader implementation
if multiple are available: e.g. cv::CAP_FFMPEG or cv::CAP_GSTREAMER.
*/
CV_WRAP VideoWriter(const String& filename, int apiPreference, int fourcc, double fps,
Size frameSize, bool isColor = true);
/** @brief Default destructor
The method first calls VideoWriter::release to close the already opened file.
*/
virtual ~VideoWriter();
/** @brief Initializes or reinitializes video writer.
The method opens video writer. Parameters are the same as in the constructor
VideoWriter::VideoWriter.
@return `true` if video writer has been successfully initialized
The method first calls VideoWriter::release to close the already opened file.
*/
CV_WRAP virtual bool open(const String& filename, int fourcc, double fps,
Size frameSize, bool isColor = true);
/** @overload
*/
CV_WRAP bool open(const String& filename, int apiPreference, int fourcc, double fps,
Size frameSize, bool isColor = true);
/** @brief Returns true if video writer has been successfully initialized.
*/
CV_WRAP virtual bool isOpened() const;
/** @brief Closes the video writer.
The method is automatically called by subsequent VideoWriter::open and by the VideoWriter
destructor.
*/
CV_WRAP virtual void release();
/** @brief Stream operator to write the next video frame.
@sa write
*/
virtual VideoWriter& operator << (const Mat& image);
/** @overload
@sa write
*/
virtual VideoWriter& operator << (const UMat& image);
/** @brief Writes the next video frame
@param image The written frame. In general, color images are expected in BGR format.
The function/method writes the specified image to video file. It must have the same size as has
been specified when opening the video writer.
*/
CV_WRAP virtual void write(InputArray image);
/** @brief Sets a property in the VideoWriter.
@param propId Property identifier from cv::VideoWriterProperties (eg. cv::VIDEOWRITER_PROP_QUALITY)
or one of @ref videoio_flags_others
@param value Value of the property.
@return `true` if the property is supported by the backend used by the VideoWriter instance.
*/
CV_WRAP virtual bool set(int propId, double value);
/** @brief Returns the specified VideoWriter property
@param propId Property identifier from cv::VideoWriterProperties (eg. cv::VIDEOWRITER_PROP_QUALITY)
or one of @ref videoio_flags_others
@return Value for the specified property. Value 0 is returned when querying a property that is
not supported by the backend used by the VideoWriter instance.
*/
CV_WRAP virtual double get(int propId) const;
/** @brief Concatenates 4 chars to a fourcc code
@return a fourcc code
This static method constructs the fourcc code of the codec to be used in the constructor
VideoWriter::VideoWriter or VideoWriter::open.
*/
CV_WRAP static int fourcc(char c1, char c2, char c3, char c4);
/** @brief Returns used backend API name
@note Stream should be opened.
*/
CV_WRAP String getBackendName() const;
protected:
Ptr<CvVideoWriter> writer;
Ptr<IVideoWriter> iwriter;
static Ptr<IVideoWriter> create(const String& filename, int fourcc, double fps,
Size frameSize, bool isColor = true);
};
template<> struct DefaultDeleter<CvCapture>{ CV_EXPORTS void operator ()(CvCapture* obj) const; };
template<> struct DefaultDeleter<CvVideoWriter>{ CV_EXPORTS void operator ()(CvVideoWriter* obj) const; };
//! @} videoio
} // cv
#endif //OPENCV_VIDEOIO_HPP

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/* For iOS video I/O
* by Eduard Feicho on 29/07/12
* Copyright 2012. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#import <UIKit/UIKit.h>
#import <Accelerate/Accelerate.h>
#import <AVFoundation/AVFoundation.h>
#import <ImageIO/ImageIO.h>
#include "opencv2/core.hpp"
//! @addtogroup videoio_ios
//! @{
/////////////////////////////////////// CvAbstractCamera /////////////////////////////////////
@class CvAbstractCamera;
CV_EXPORTS @interface CvAbstractCamera : NSObject
{
UIDeviceOrientation currentDeviceOrientation;
BOOL cameraAvailable;
}
@property (nonatomic, strong) AVCaptureSession* captureSession;
@property (nonatomic, strong) AVCaptureConnection* videoCaptureConnection;
@property (nonatomic, readonly) BOOL running;
@property (nonatomic, readonly) BOOL captureSessionLoaded;
@property (nonatomic, assign) int defaultFPS;
@property (nonatomic, readonly) AVCaptureVideoPreviewLayer *captureVideoPreviewLayer;
@property (nonatomic, assign) AVCaptureDevicePosition defaultAVCaptureDevicePosition;
@property (nonatomic, assign) AVCaptureVideoOrientation defaultAVCaptureVideoOrientation;
@property (nonatomic, assign) BOOL useAVCaptureVideoPreviewLayer;
@property (nonatomic, strong) NSString *const defaultAVCaptureSessionPreset;
@property (nonatomic, assign) int imageWidth;
@property (nonatomic, assign) int imageHeight;
@property (nonatomic, strong) UIView* parentView;
- CV_UNUSED(start);
- CV_UNUSED(stop);
- CV_UNUSED(switchCameras);
- (id)initWithParentView:(UIView*)parent;
- CV_UNUSED(createCaptureOutput);
- CV_UNUSED(createVideoPreviewLayer);
- CV_UNUSED(updateOrientation);
- CV_UNUSED(lockFocus);
- CV_UNUSED(unlockFocus);
- CV_UNUSED(lockExposure);
- CV_UNUSED(unlockExposure);
- CV_UNUSED(lockBalance);
- CV_UNUSED(unlockBalance);
@end
///////////////////////////////// CvVideoCamera ///////////////////////////////////////////
@class CvVideoCamera;
CV_EXPORTS @protocol CvVideoCameraDelegate <NSObject>
#ifdef __cplusplus
// delegate method for processing image frames
- (void)processImage:(cv::Mat&)image;
#endif
@end
CV_EXPORTS @interface CvVideoCamera : CvAbstractCamera<AVCaptureVideoDataOutputSampleBufferDelegate>
{
AVCaptureVideoDataOutput *videoDataOutput;
dispatch_queue_t videoDataOutputQueue;
CALayer *customPreviewLayer;
CMTime lastSampleTime;
}
@property (nonatomic, weak) id<CvVideoCameraDelegate> delegate;
@property (nonatomic, assign) BOOL grayscaleMode;
@property (nonatomic, assign) BOOL recordVideo;
@property (nonatomic, assign) BOOL rotateVideo;
@property (nonatomic, strong) AVAssetWriterInput* recordAssetWriterInput;
@property (nonatomic, strong) AVAssetWriterInputPixelBufferAdaptor* recordPixelBufferAdaptor;
@property (nonatomic, strong) AVAssetWriter* recordAssetWriter;
- (void)adjustLayoutToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation;
- CV_UNUSED(layoutPreviewLayer);
- CV_UNUSED(saveVideo);
- (NSURL *)videoFileURL;
- (NSString *)videoFileString;
@end
///////////////////////////////// CvPhotoCamera ///////////////////////////////////////////
@class CvPhotoCamera;
CV_EXPORTS @protocol CvPhotoCameraDelegate <NSObject>
- (void)photoCamera:(CvPhotoCamera*)photoCamera capturedImage:(UIImage *)image;
- (void)photoCameraCancel:(CvPhotoCamera*)photoCamera;
@end
CV_EXPORTS @interface CvPhotoCamera : CvAbstractCamera
{
AVCaptureStillImageOutput *stillImageOutput;
}
@property (nonatomic, weak) id<CvPhotoCameraDelegate> delegate;
- CV_UNUSED(takePicture);
@end
//! @} videoio_ios

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// Video support for Windows Runtime
// Copyright (c) Microsoft Open Technologies, Inc.
// All rights reserved.
//
// (3 - clause BSD License)
//
// Redistribution and use in source and binary forms, with or without modification, are permitted provided that
// the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the
// following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
// following disclaimer in the documentation and/or other materials provided with the distribution.
// 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or
// promote products derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
// PARTICULAR PURPOSE ARE DISCLAIMED.IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT(INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
#include <ppl.h>
#include <functional>
#include <concrt.h>
#include <agile.h>
#include "opencv2/core/cvdef.h"
namespace cv
{
//! @addtogroup videoio_winrt
//! @{
enum {
OPEN_CAMERA = 300,
CLOSE_CAMERA,
UPDATE_IMAGE_ELEMENT,
SHOW_TRACKBAR
};
/********************************** WinRT API ************************************************/
template <typename ...Args>
CV_EXPORTS void winrt_startMessageLoop(std::function<void(Args...)>&& callback, Args... args);
template <typename ...Args>
CV_EXPORTS void winrt_startMessageLoop(void callback(Args...), Args... args);
/** @brief
@note
Starts (1) frame-grabbing loop and (2) message loop
1. Function passed as an argument must implement common OCV reading frames
pattern (see cv::VideoCapture documentation) AND call cv::winrt_imgshow().
2. Message processing loop required to overcome WinRT container and type
conversion restrictions. OCV provides default implementation
Here is how the class can be used:
@code
void cvMain()
{
Mat frame;
VideoCapture cam;
cam.open(0);
while (1)
{
cam >> frame;
// don't reprocess the same frame again
if (!cam.grab()) continue;
// your processing logic goes here
// obligatory step to get XAML image component updated
winrt_imshow();
}
}
MainPage::MainPage()
{
InitializeComponent();
cv::winrt_setFrameContainer(cvImage);
cv::winrt_startMessageLoop(cvMain);
}
@endcode
*/
template
CV_EXPORTS void winrt_startMessageLoop(void callback(void));
/** @brief
@note
Must be called from WinRT specific callback to handle image grabber state.
Here is how the class can be used:
@code
MainPage::MainPage()
{
// ...
Window::Current->VisibilityChanged += ref new Windows::UI::Xaml::WindowVisibilityChangedEventHandler(this, &Application::MainPage::OnVisibilityChanged);
// ...
}
void Application::MainPage::OnVisibilityChanged(Platform::Object ^sender,
Windows::UI::Core::VisibilityChangedEventArgs ^e)
{
cv::winrt_onVisibilityChanged(e->Visible);
}
@endcode
*/
CV_EXPORTS void winrt_onVisibilityChanged(bool visible);
/** @brief
@note
Must be called to assign WinRT control holding image you're working with.
Code sample is available for winrt_startMessageLoop().
*/
CV_EXPORTS void winrt_setFrameContainer(::Windows::UI::Xaml::Controls::Image^ image);
/** @brief
@note
Must be called to update attached image source.
Code sample is available for winrt_startMessageLoop().
*/
CV_EXPORTS void winrt_imshow();
//! @} videoio_winrt
} // cv

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// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html.
#ifndef CONTAINER_AVI_HPP
#define CONTAINER_AVI_HPP
#ifndef __OPENCV_BUILD
# error this is a private header which should not be used from outside of the OpenCV library
#endif
#include "opencv2/core/cvdef.h"
#include "opencv2/videoio/videoio_c.h"
#include <deque>
namespace cv
{
/*
AVI struct:
RIFF ('AVI '
LIST ('hdrl'
'avih'(<Main AVI Header>)
LIST ('strl'
'strh'(<Stream header>)
'strf'(<Stream format>)
[ 'strd'(<Additional header data>) ]
[ 'strn'(<Stream name>) ]
[ 'indx'(<Odml index data>) ]
...
)
[LIST ('strl' ...)]
[LIST ('strl' ...)]
...
[LIST ('odml'
'dmlh'(<ODML header data>)
...
)
]
...
)
[LIST ('INFO' ...)]
[JUNK]
LIST ('movi'
{{xxdb|xxdc|xxpc|xxwb}(<Data>) | LIST ('rec '
{xxdb|xxdc|xxpc|xxwb}(<Data>)
{xxdb|xxdc|xxpc|xxwb}(<Data>)
...
)
...
}
...
)
['idx1' (<AVI Index>) ]
)
{xxdb|xxdc|xxpc|xxwb}
xx - stream number: 00, 01, 02, ...
db - uncompressed video frame
dc - compressed video frame
pc - palette change
wb - audio frame
JUNK section may pad any data section and must be ignored
*/
typedef std::deque< std::pair<uint64_t, uint32_t> > frame_list;
typedef frame_list::iterator frame_iterator;
struct RiffChunk;
struct RiffList;
class VideoInputStream;
enum Codecs { MJPEG };
//Represents single MJPEG video stream within single AVI/AVIX entry
//Multiple video streams within single AVI/AVIX entry are not supported
//ODML index is not supported
class CV_EXPORTS AVIReadContainer
{
public:
AVIReadContainer();
void initStream(const String& filename);
void initStream(Ptr<VideoInputStream> m_file_stream_);
void close();
//stores founded frames in m_frame_list which can be accessed via getFrames
bool parseAvi(Codecs codec_) { return parseAviWithFrameList(m_frame_list, codec_); }
//stores founded frames in in_frame_list. getFrames() would return empty list
bool parseAvi(frame_list& in_frame_list, Codecs codec_) { return parseAviWithFrameList(in_frame_list, codec_); }
size_t getFramesCount() { return m_frame_list.size(); }
frame_list& getFrames() { return m_frame_list; }
unsigned int getWidth() { return m_width; }
unsigned int getHeight() { return m_height; }
double getFps() { return m_fps; }
std::vector<char> readFrame(frame_iterator it);
bool parseRiff(frame_list &m_mjpeg_frames);
protected:
bool parseAviWithFrameList(frame_list& in_frame_list, Codecs codec_);
void skipJunk(RiffChunk& chunk);
void skipJunk(RiffList& list);
bool parseHdrlList(Codecs codec_);
bool parseIndex(unsigned int index_size, frame_list& in_frame_list);
bool parseMovi(frame_list& in_frame_list)
{
//not implemented
CV_UNUSED(in_frame_list);
// FIXIT: in_frame_list.empty();
return true;
}
bool parseStrl(char stream_id, Codecs codec_);
bool parseInfo()
{
//not implemented
return true;
}
void printError(RiffList& list, unsigned int expected_fourcc);
void printError(RiffChunk& chunk, unsigned int expected_fourcc);
Ptr<VideoInputStream> m_file_stream;
unsigned int m_stream_id;
unsigned long long int m_movi_start;
unsigned long long int m_movi_end;
frame_list m_frame_list;
unsigned int m_width;
unsigned int m_height;
double m_fps;
bool m_is_indx_present;
};
enum { COLORSPACE_GRAY=0, COLORSPACE_RGBA=1, COLORSPACE_BGR=2, COLORSPACE_YUV444P=3 };
enum StreamType { db, dc, pc, wb };
class BitStream;
// {xxdb|xxdc|xxpc|xxwb}
// xx - stream number: 00, 01, 02, ...
// db - uncompressed video frame
// dc - compressed video frame
// pc - palette change
// wb - audio frame
class CV_EXPORTS AVIWriteContainer
{
public:
AVIWriteContainer();
~AVIWriteContainer();
bool initContainer(const String& filename, double fps, Size size, bool iscolor);
void startWriteAVI(int stream_count);
void writeStreamHeader(Codecs codec_);
void startWriteChunk(uint32_t fourcc);
void endWriteChunk();
int getAVIIndex(int stream_number, StreamType strm_type);
void writeIndex(int stream_number, StreamType strm_type);
void finishWriteAVI();
bool isOpenedStream() const;
bool isEmptyFrameOffset() const { return frameOffset.empty(); }
int getWidth() const { return width; }
int getHeight() const { return height; }
int getChannels() const { return channels; }
size_t getMoviPointer() const { return moviPointer; }
size_t getStreamPos() const;
void pushFrameOffset(size_t elem) { frameOffset.push_back(elem); }
void pushFrameSize(size_t elem) { frameSize.push_back(elem); }
bool isEmptyFrameSize() const { return frameSize.empty(); }
size_t atFrameSize(size_t i) const { return frameSize[i]; }
size_t countFrameSize() const { return frameSize.size(); }
void jputStreamShort(int val);
void putStreamBytes(const uchar* buf, int count);
void putStreamByte(int val);
void jputStream(unsigned currval);
void jflushStream(unsigned currval, int bitIdx);
private:
Ptr<BitStream> strm;
int outfps;
int width, height, channels;
size_t moviPointer;
std::vector<size_t> frameOffset, frameSize, AVIChunkSizeIndex, frameNumIndexes;
};
}
#endif //CONTAINER_AVI_HPP

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// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html.
#ifndef OPENCV_VIDEOIO_LEGACY_CONSTANTS_H
#define OPENCV_VIDEOIO_LEGACY_CONSTANTS_H
enum
{
CV_CAP_ANY =0, // autodetect
CV_CAP_MIL =100, // MIL proprietary drivers
CV_CAP_VFW =200, // platform native
CV_CAP_V4L =200,
CV_CAP_V4L2 =200,
CV_CAP_FIREWARE =300, // IEEE 1394 drivers
CV_CAP_FIREWIRE =300,
CV_CAP_IEEE1394 =300,
CV_CAP_DC1394 =300,
CV_CAP_CMU1394 =300,
CV_CAP_STEREO =400, // TYZX proprietary drivers
CV_CAP_TYZX =400,
CV_TYZX_LEFT =400,
CV_TYZX_RIGHT =401,
CV_TYZX_COLOR =402,
CV_TYZX_Z =403,
CV_CAP_QT =500, // QuickTime
CV_CAP_UNICAP =600, // Unicap drivers
CV_CAP_DSHOW =700, // DirectShow (via videoInput)
CV_CAP_MSMF =1400, // Microsoft Media Foundation (via videoInput)
CV_CAP_PVAPI =800, // PvAPI, Prosilica GigE SDK
CV_CAP_OPENNI =900, // OpenNI (for Kinect)
CV_CAP_OPENNI_ASUS =910, // OpenNI (for Asus Xtion)
CV_CAP_ANDROID =1000, // Android - not used
CV_CAP_ANDROID_BACK =CV_CAP_ANDROID+99, // Android back camera - not used
CV_CAP_ANDROID_FRONT =CV_CAP_ANDROID+98, // Android front camera - not used
CV_CAP_XIAPI =1100, // XIMEA Camera API
CV_CAP_AVFOUNDATION = 1200, // AVFoundation framework for iOS (OS X Lion will have the same API)
CV_CAP_GIGANETIX = 1300, // Smartek Giganetix GigEVisionSDK
CV_CAP_INTELPERC = 1500, // Intel Perceptual Computing
CV_CAP_OPENNI2 = 1600, // OpenNI2 (for Kinect)
CV_CAP_GPHOTO2 = 1700,
CV_CAP_GSTREAMER = 1800, // GStreamer
CV_CAP_FFMPEG = 1900, // FFMPEG
CV_CAP_IMAGES = 2000, // OpenCV Image Sequence (e.g. img_%02d.jpg)
CV_CAP_ARAVIS = 2100 // Aravis GigE SDK
};
enum
{
// modes of the controlling registers (can be: auto, manual, auto single push, absolute Latter allowed with any other mode)
// every feature can have only one mode turned on at a time
CV_CAP_PROP_DC1394_OFF = -4, //turn the feature off (not controlled manually nor automatically)
CV_CAP_PROP_DC1394_MODE_MANUAL = -3, //set automatically when a value of the feature is set by the user
CV_CAP_PROP_DC1394_MODE_AUTO = -2,
CV_CAP_PROP_DC1394_MODE_ONE_PUSH_AUTO = -1,
CV_CAP_PROP_POS_MSEC =0,
CV_CAP_PROP_POS_FRAMES =1,
CV_CAP_PROP_POS_AVI_RATIO =2,
CV_CAP_PROP_FRAME_WIDTH =3,
CV_CAP_PROP_FRAME_HEIGHT =4,
CV_CAP_PROP_FPS =5,
CV_CAP_PROP_FOURCC =6,
CV_CAP_PROP_FRAME_COUNT =7,
CV_CAP_PROP_FORMAT =8,
CV_CAP_PROP_MODE =9,
CV_CAP_PROP_BRIGHTNESS =10,
CV_CAP_PROP_CONTRAST =11,
CV_CAP_PROP_SATURATION =12,
CV_CAP_PROP_HUE =13,
CV_CAP_PROP_GAIN =14,
CV_CAP_PROP_EXPOSURE =15,
CV_CAP_PROP_CONVERT_RGB =16,
CV_CAP_PROP_WHITE_BALANCE_BLUE_U =17,
CV_CAP_PROP_RECTIFICATION =18,
CV_CAP_PROP_MONOCHROME =19,
CV_CAP_PROP_SHARPNESS =20,
CV_CAP_PROP_AUTO_EXPOSURE =21, // exposure control done by camera,
// user can adjust reference level
// using this feature
CV_CAP_PROP_GAMMA =22,
CV_CAP_PROP_TEMPERATURE =23,
CV_CAP_PROP_TRIGGER =24,
CV_CAP_PROP_TRIGGER_DELAY =25,
CV_CAP_PROP_WHITE_BALANCE_RED_V =26,
CV_CAP_PROP_ZOOM =27,
CV_CAP_PROP_FOCUS =28,
CV_CAP_PROP_GUID =29,
CV_CAP_PROP_ISO_SPEED =30,
CV_CAP_PROP_MAX_DC1394 =31,
CV_CAP_PROP_BACKLIGHT =32,
CV_CAP_PROP_PAN =33,
CV_CAP_PROP_TILT =34,
CV_CAP_PROP_ROLL =35,
CV_CAP_PROP_IRIS =36,
CV_CAP_PROP_SETTINGS =37,
CV_CAP_PROP_BUFFERSIZE =38,
CV_CAP_PROP_AUTOFOCUS =39,
CV_CAP_PROP_SAR_NUM =40,
CV_CAP_PROP_SAR_DEN =41,
CV_CAP_PROP_AUTOGRAB =1024, // property for videoio class CvCapture_Android only
CV_CAP_PROP_SUPPORTED_PREVIEW_SIZES_STRING=1025, // readonly, tricky property, returns cpnst char* indeed
CV_CAP_PROP_PREVIEW_FORMAT=1026, // readonly, tricky property, returns cpnst char* indeed
// OpenNI map generators
CV_CAP_OPENNI_DEPTH_GENERATOR = 1 << 31,
CV_CAP_OPENNI_IMAGE_GENERATOR = 1 << 30,
CV_CAP_OPENNI_IR_GENERATOR = 1 << 29,
CV_CAP_OPENNI_GENERATORS_MASK = CV_CAP_OPENNI_DEPTH_GENERATOR + CV_CAP_OPENNI_IMAGE_GENERATOR + CV_CAP_OPENNI_IR_GENERATOR,
// Properties of cameras available through OpenNI interfaces
CV_CAP_PROP_OPENNI_OUTPUT_MODE = 100,
CV_CAP_PROP_OPENNI_FRAME_MAX_DEPTH = 101, // in mm
CV_CAP_PROP_OPENNI_BASELINE = 102, // in mm
CV_CAP_PROP_OPENNI_FOCAL_LENGTH = 103, // in pixels
CV_CAP_PROP_OPENNI_REGISTRATION = 104, // flag
CV_CAP_PROP_OPENNI_REGISTRATION_ON = CV_CAP_PROP_OPENNI_REGISTRATION, // flag that synchronizes the remapping depth map to image map
// by changing depth generator's view point (if the flag is "on") or
// sets this view point to its normal one (if the flag is "off").
CV_CAP_PROP_OPENNI_APPROX_FRAME_SYNC = 105,
CV_CAP_PROP_OPENNI_MAX_BUFFER_SIZE = 106,
CV_CAP_PROP_OPENNI_CIRCLE_BUFFER = 107,
CV_CAP_PROP_OPENNI_MAX_TIME_DURATION = 108,
CV_CAP_PROP_OPENNI_GENERATOR_PRESENT = 109,
CV_CAP_PROP_OPENNI2_SYNC = 110,
CV_CAP_PROP_OPENNI2_MIRROR = 111,
CV_CAP_OPENNI_IMAGE_GENERATOR_PRESENT = CV_CAP_OPENNI_IMAGE_GENERATOR + CV_CAP_PROP_OPENNI_GENERATOR_PRESENT,
CV_CAP_OPENNI_IMAGE_GENERATOR_OUTPUT_MODE = CV_CAP_OPENNI_IMAGE_GENERATOR + CV_CAP_PROP_OPENNI_OUTPUT_MODE,
CV_CAP_OPENNI_DEPTH_GENERATOR_PRESENT = CV_CAP_OPENNI_DEPTH_GENERATOR + CV_CAP_PROP_OPENNI_GENERATOR_PRESENT,
CV_CAP_OPENNI_DEPTH_GENERATOR_BASELINE = CV_CAP_OPENNI_DEPTH_GENERATOR + CV_CAP_PROP_OPENNI_BASELINE,
CV_CAP_OPENNI_DEPTH_GENERATOR_FOCAL_LENGTH = CV_CAP_OPENNI_DEPTH_GENERATOR + CV_CAP_PROP_OPENNI_FOCAL_LENGTH,
CV_CAP_OPENNI_DEPTH_GENERATOR_REGISTRATION = CV_CAP_OPENNI_DEPTH_GENERATOR + CV_CAP_PROP_OPENNI_REGISTRATION,
CV_CAP_OPENNI_DEPTH_GENERATOR_REGISTRATION_ON = CV_CAP_OPENNI_DEPTH_GENERATOR_REGISTRATION,
CV_CAP_OPENNI_IR_GENERATOR_PRESENT = CV_CAP_OPENNI_IR_GENERATOR + CV_CAP_PROP_OPENNI_GENERATOR_PRESENT,
// Properties of cameras available through GStreamer interface
CV_CAP_GSTREAMER_QUEUE_LENGTH = 200, // default is 1
// PVAPI
CV_CAP_PROP_PVAPI_MULTICASTIP = 300, // ip for anable multicast master mode. 0 for disable multicast
CV_CAP_PROP_PVAPI_FRAMESTARTTRIGGERMODE = 301, // FrameStartTriggerMode: Determines how a frame is initiated
CV_CAP_PROP_PVAPI_DECIMATIONHORIZONTAL = 302, // Horizontal sub-sampling of the image
CV_CAP_PROP_PVAPI_DECIMATIONVERTICAL = 303, // Vertical sub-sampling of the image
CV_CAP_PROP_PVAPI_BINNINGX = 304, // Horizontal binning factor
CV_CAP_PROP_PVAPI_BINNINGY = 305, // Vertical binning factor
CV_CAP_PROP_PVAPI_PIXELFORMAT = 306, // Pixel format
// Properties of cameras available through XIMEA SDK interface
CV_CAP_PROP_XI_DOWNSAMPLING = 400, // Change image resolution by binning or skipping.
CV_CAP_PROP_XI_DATA_FORMAT = 401, // Output data format.
CV_CAP_PROP_XI_OFFSET_X = 402, // Horizontal offset from the origin to the area of interest (in pixels).
CV_CAP_PROP_XI_OFFSET_Y = 403, // Vertical offset from the origin to the area of interest (in pixels).
CV_CAP_PROP_XI_TRG_SOURCE = 404, // Defines source of trigger.
CV_CAP_PROP_XI_TRG_SOFTWARE = 405, // Generates an internal trigger. PRM_TRG_SOURCE must be set to TRG_SOFTWARE.
CV_CAP_PROP_XI_GPI_SELECTOR = 406, // Selects general purpose input
CV_CAP_PROP_XI_GPI_MODE = 407, // Set general purpose input mode
CV_CAP_PROP_XI_GPI_LEVEL = 408, // Get general purpose level
CV_CAP_PROP_XI_GPO_SELECTOR = 409, // Selects general purpose output
CV_CAP_PROP_XI_GPO_MODE = 410, // Set general purpose output mode
CV_CAP_PROP_XI_LED_SELECTOR = 411, // Selects camera signalling LED
CV_CAP_PROP_XI_LED_MODE = 412, // Define camera signalling LED functionality
CV_CAP_PROP_XI_MANUAL_WB = 413, // Calculates White Balance(must be called during acquisition)
CV_CAP_PROP_XI_AUTO_WB = 414, // Automatic white balance
CV_CAP_PROP_XI_AEAG = 415, // Automatic exposure/gain
CV_CAP_PROP_XI_EXP_PRIORITY = 416, // Exposure priority (0.5 - exposure 50%, gain 50%).
CV_CAP_PROP_XI_AE_MAX_LIMIT = 417, // Maximum limit of exposure in AEAG procedure
CV_CAP_PROP_XI_AG_MAX_LIMIT = 418, // Maximum limit of gain in AEAG procedure
CV_CAP_PROP_XI_AEAG_LEVEL = 419, // Average intensity of output signal AEAG should achieve(in %)
CV_CAP_PROP_XI_TIMEOUT = 420, // Image capture timeout in milliseconds
CV_CAP_PROP_XI_EXPOSURE = 421, // Exposure time in microseconds
CV_CAP_PROP_XI_EXPOSURE_BURST_COUNT = 422, // Sets the number of times of exposure in one frame.
CV_CAP_PROP_XI_GAIN_SELECTOR = 423, // Gain selector for parameter Gain allows to select different type of gains.
CV_CAP_PROP_XI_GAIN = 424, // Gain in dB
CV_CAP_PROP_XI_DOWNSAMPLING_TYPE = 426, // Change image downsampling type.
CV_CAP_PROP_XI_BINNING_SELECTOR = 427, // Binning engine selector.
CV_CAP_PROP_XI_BINNING_VERTICAL = 428, // Vertical Binning - number of vertical photo-sensitive cells to combine together.
CV_CAP_PROP_XI_BINNING_HORIZONTAL = 429, // Horizontal Binning - number of horizontal photo-sensitive cells to combine together.
CV_CAP_PROP_XI_BINNING_PATTERN = 430, // Binning pattern type.
CV_CAP_PROP_XI_DECIMATION_SELECTOR = 431, // Decimation engine selector.
CV_CAP_PROP_XI_DECIMATION_VERTICAL = 432, // Vertical Decimation - vertical sub-sampling of the image - reduces the vertical resolution of the image by the specified vertical decimation factor.
CV_CAP_PROP_XI_DECIMATION_HORIZONTAL = 433, // Horizontal Decimation - horizontal sub-sampling of the image - reduces the horizontal resolution of the image by the specified vertical decimation factor.
CV_CAP_PROP_XI_DECIMATION_PATTERN = 434, // Decimation pattern type.
CV_CAP_PROP_XI_TEST_PATTERN_GENERATOR_SELECTOR = 587, // Selects which test pattern generator is controlled by the TestPattern feature.
CV_CAP_PROP_XI_TEST_PATTERN = 588, // Selects which test pattern type is generated by the selected generator.
CV_CAP_PROP_XI_IMAGE_DATA_FORMAT = 435, // Output data format.
CV_CAP_PROP_XI_SHUTTER_TYPE = 436, // Change sensor shutter type(CMOS sensor).
CV_CAP_PROP_XI_SENSOR_TAPS = 437, // Number of taps
CV_CAP_PROP_XI_AEAG_ROI_OFFSET_X = 439, // Automatic exposure/gain ROI offset X
CV_CAP_PROP_XI_AEAG_ROI_OFFSET_Y = 440, // Automatic exposure/gain ROI offset Y
CV_CAP_PROP_XI_AEAG_ROI_WIDTH = 441, // Automatic exposure/gain ROI Width
CV_CAP_PROP_XI_AEAG_ROI_HEIGHT = 442, // Automatic exposure/gain ROI Height
CV_CAP_PROP_XI_BPC = 445, // Correction of bad pixels
CV_CAP_PROP_XI_WB_KR = 448, // White balance red coefficient
CV_CAP_PROP_XI_WB_KG = 449, // White balance green coefficient
CV_CAP_PROP_XI_WB_KB = 450, // White balance blue coefficient
CV_CAP_PROP_XI_WIDTH = 451, // Width of the Image provided by the device (in pixels).
CV_CAP_PROP_XI_HEIGHT = 452, // Height of the Image provided by the device (in pixels).
CV_CAP_PROP_XI_REGION_SELECTOR = 589, // Selects Region in Multiple ROI which parameters are set by width, height, ... ,region mode
CV_CAP_PROP_XI_REGION_MODE = 595, // Activates/deactivates Region selected by Region Selector
CV_CAP_PROP_XI_LIMIT_BANDWIDTH = 459, // Set/get bandwidth(datarate)(in Megabits)
CV_CAP_PROP_XI_SENSOR_DATA_BIT_DEPTH = 460, // Sensor output data bit depth.
CV_CAP_PROP_XI_OUTPUT_DATA_BIT_DEPTH = 461, // Device output data bit depth.
CV_CAP_PROP_XI_IMAGE_DATA_BIT_DEPTH = 462, // bitdepth of data returned by function xiGetImage
CV_CAP_PROP_XI_OUTPUT_DATA_PACKING = 463, // Device output data packing (or grouping) enabled. Packing could be enabled if output_data_bit_depth > 8 and packing capability is available.
CV_CAP_PROP_XI_OUTPUT_DATA_PACKING_TYPE = 464, // Data packing type. Some cameras supports only specific packing type.
CV_CAP_PROP_XI_IS_COOLED = 465, // Returns 1 for cameras that support cooling.
CV_CAP_PROP_XI_COOLING = 466, // Start camera cooling.
CV_CAP_PROP_XI_TARGET_TEMP = 467, // Set sensor target temperature for cooling.
CV_CAP_PROP_XI_CHIP_TEMP = 468, // Camera sensor temperature
CV_CAP_PROP_XI_HOUS_TEMP = 469, // Camera housing tepmerature
CV_CAP_PROP_XI_HOUS_BACK_SIDE_TEMP = 590, // Camera housing back side tepmerature
CV_CAP_PROP_XI_SENSOR_BOARD_TEMP = 596, // Camera sensor board temperature
CV_CAP_PROP_XI_CMS = 470, // Mode of color management system.
CV_CAP_PROP_XI_APPLY_CMS = 471, // Enable applying of CMS profiles to xiGetImage (see XI_PRM_INPUT_CMS_PROFILE, XI_PRM_OUTPUT_CMS_PROFILE).
CV_CAP_PROP_XI_IMAGE_IS_COLOR = 474, // Returns 1 for color cameras.
CV_CAP_PROP_XI_COLOR_FILTER_ARRAY = 475, // Returns color filter array type of RAW data.
CV_CAP_PROP_XI_GAMMAY = 476, // Luminosity gamma
CV_CAP_PROP_XI_GAMMAC = 477, // Chromaticity gamma
CV_CAP_PROP_XI_SHARPNESS = 478, // Sharpness Strength
CV_CAP_PROP_XI_CC_MATRIX_00 = 479, // Color Correction Matrix element [0][0]
CV_CAP_PROP_XI_CC_MATRIX_01 = 480, // Color Correction Matrix element [0][1]
CV_CAP_PROP_XI_CC_MATRIX_02 = 481, // Color Correction Matrix element [0][2]
CV_CAP_PROP_XI_CC_MATRIX_03 = 482, // Color Correction Matrix element [0][3]
CV_CAP_PROP_XI_CC_MATRIX_10 = 483, // Color Correction Matrix element [1][0]
CV_CAP_PROP_XI_CC_MATRIX_11 = 484, // Color Correction Matrix element [1][1]
CV_CAP_PROP_XI_CC_MATRIX_12 = 485, // Color Correction Matrix element [1][2]
CV_CAP_PROP_XI_CC_MATRIX_13 = 486, // Color Correction Matrix element [1][3]
CV_CAP_PROP_XI_CC_MATRIX_20 = 487, // Color Correction Matrix element [2][0]
CV_CAP_PROP_XI_CC_MATRIX_21 = 488, // Color Correction Matrix element [2][1]
CV_CAP_PROP_XI_CC_MATRIX_22 = 489, // Color Correction Matrix element [2][2]
CV_CAP_PROP_XI_CC_MATRIX_23 = 490, // Color Correction Matrix element [2][3]
CV_CAP_PROP_XI_CC_MATRIX_30 = 491, // Color Correction Matrix element [3][0]
CV_CAP_PROP_XI_CC_MATRIX_31 = 492, // Color Correction Matrix element [3][1]
CV_CAP_PROP_XI_CC_MATRIX_32 = 493, // Color Correction Matrix element [3][2]
CV_CAP_PROP_XI_CC_MATRIX_33 = 494, // Color Correction Matrix element [3][3]
CV_CAP_PROP_XI_DEFAULT_CC_MATRIX = 495, // Set default Color Correction Matrix
CV_CAP_PROP_XI_TRG_SELECTOR = 498, // Selects the type of trigger.
CV_CAP_PROP_XI_ACQ_FRAME_BURST_COUNT = 499, // Sets number of frames acquired by burst. This burst is used only if trigger is set to FrameBurstStart
CV_CAP_PROP_XI_DEBOUNCE_EN = 507, // Enable/Disable debounce to selected GPI
CV_CAP_PROP_XI_DEBOUNCE_T0 = 508, // Debounce time (x * 10us)
CV_CAP_PROP_XI_DEBOUNCE_T1 = 509, // Debounce time (x * 10us)
CV_CAP_PROP_XI_DEBOUNCE_POL = 510, // Debounce polarity (pol = 1 t0 - falling edge, t1 - rising edge)
CV_CAP_PROP_XI_LENS_MODE = 511, // Status of lens control interface. This shall be set to XI_ON before any Lens operations.
CV_CAP_PROP_XI_LENS_APERTURE_VALUE = 512, // Current lens aperture value in stops. Examples: 2.8, 4, 5.6, 8, 11
CV_CAP_PROP_XI_LENS_FOCUS_MOVEMENT_VALUE = 513, // Lens current focus movement value to be used by XI_PRM_LENS_FOCUS_MOVE in motor steps.
CV_CAP_PROP_XI_LENS_FOCUS_MOVE = 514, // Moves lens focus motor by steps set in XI_PRM_LENS_FOCUS_MOVEMENT_VALUE.
CV_CAP_PROP_XI_LENS_FOCUS_DISTANCE = 515, // Lens focus distance in cm.
CV_CAP_PROP_XI_LENS_FOCAL_LENGTH = 516, // Lens focal distance in mm.
CV_CAP_PROP_XI_LENS_FEATURE_SELECTOR = 517, // Selects the current feature which is accessible by XI_PRM_LENS_FEATURE.
CV_CAP_PROP_XI_LENS_FEATURE = 518, // Allows access to lens feature value currently selected by XI_PRM_LENS_FEATURE_SELECTOR.
CV_CAP_PROP_XI_DEVICE_MODEL_ID = 521, // Return device model id
CV_CAP_PROP_XI_DEVICE_SN = 522, // Return device serial number
CV_CAP_PROP_XI_IMAGE_DATA_FORMAT_RGB32_ALPHA = 529, // The alpha channel of RGB32 output image format.
CV_CAP_PROP_XI_IMAGE_PAYLOAD_SIZE = 530, // Buffer size in bytes sufficient for output image returned by xiGetImage
CV_CAP_PROP_XI_TRANSPORT_PIXEL_FORMAT = 531, // Current format of pixels on transport layer.
CV_CAP_PROP_XI_SENSOR_CLOCK_FREQ_HZ = 532, // Sensor clock frequency in Hz.
CV_CAP_PROP_XI_SENSOR_CLOCK_FREQ_INDEX = 533, // Sensor clock frequency index. Sensor with selected frequencies have possibility to set the frequency only by this index.
CV_CAP_PROP_XI_SENSOR_OUTPUT_CHANNEL_COUNT = 534, // Number of output channels from sensor used for data transfer.
CV_CAP_PROP_XI_FRAMERATE = 535, // Define framerate in Hz
CV_CAP_PROP_XI_COUNTER_SELECTOR = 536, // Select counter
CV_CAP_PROP_XI_COUNTER_VALUE = 537, // Counter status
CV_CAP_PROP_XI_ACQ_TIMING_MODE = 538, // Type of sensor frames timing.
CV_CAP_PROP_XI_AVAILABLE_BANDWIDTH = 539, // Calculate and return available interface bandwidth(int Megabits)
CV_CAP_PROP_XI_BUFFER_POLICY = 540, // Data move policy
CV_CAP_PROP_XI_LUT_EN = 541, // Activates LUT.
CV_CAP_PROP_XI_LUT_INDEX = 542, // Control the index (offset) of the coefficient to access in the LUT.
CV_CAP_PROP_XI_LUT_VALUE = 543, // Value at entry LUTIndex of the LUT
CV_CAP_PROP_XI_TRG_DELAY = 544, // Specifies the delay in microseconds (us) to apply after the trigger reception before activating it.
CV_CAP_PROP_XI_TS_RST_MODE = 545, // Defines how time stamp reset engine will be armed
CV_CAP_PROP_XI_TS_RST_SOURCE = 546, // Defines which source will be used for timestamp reset. Writing this parameter will trigger settings of engine (arming)
CV_CAP_PROP_XI_IS_DEVICE_EXIST = 547, // Returns 1 if camera connected and works properly.
CV_CAP_PROP_XI_ACQ_BUFFER_SIZE = 548, // Acquisition buffer size in buffer_size_unit. Default bytes.
CV_CAP_PROP_XI_ACQ_BUFFER_SIZE_UNIT = 549, // Acquisition buffer size unit in bytes. Default 1. E.g. Value 1024 means that buffer_size is in KiBytes
CV_CAP_PROP_XI_ACQ_TRANSPORT_BUFFER_SIZE = 550, // Acquisition transport buffer size in bytes
CV_CAP_PROP_XI_BUFFERS_QUEUE_SIZE = 551, // Queue of field/frame buffers
CV_CAP_PROP_XI_ACQ_TRANSPORT_BUFFER_COMMIT = 552, // Number of buffers to commit to low level
CV_CAP_PROP_XI_RECENT_FRAME = 553, // GetImage returns most recent frame
CV_CAP_PROP_XI_DEVICE_RESET = 554, // Resets the camera to default state.
CV_CAP_PROP_XI_COLUMN_FPN_CORRECTION = 555, // Correction of column FPN
CV_CAP_PROP_XI_ROW_FPN_CORRECTION = 591, // Correction of row FPN
CV_CAP_PROP_XI_SENSOR_MODE = 558, // Current sensor mode. Allows to select sensor mode by one integer. Setting of this parameter affects: image dimensions and downsampling.
CV_CAP_PROP_XI_HDR = 559, // Enable High Dynamic Range feature.
CV_CAP_PROP_XI_HDR_KNEEPOINT_COUNT = 560, // The number of kneepoints in the PWLR.
CV_CAP_PROP_XI_HDR_T1 = 561, // position of first kneepoint(in % of XI_PRM_EXPOSURE)
CV_CAP_PROP_XI_HDR_T2 = 562, // position of second kneepoint (in % of XI_PRM_EXPOSURE)
CV_CAP_PROP_XI_KNEEPOINT1 = 563, // value of first kneepoint (% of sensor saturation)
CV_CAP_PROP_XI_KNEEPOINT2 = 564, // value of second kneepoint (% of sensor saturation)
CV_CAP_PROP_XI_IMAGE_BLACK_LEVEL = 565, // Last image black level counts. Can be used for Offline processing to recall it.
CV_CAP_PROP_XI_HW_REVISION = 571, // Returns hardware revision number.
CV_CAP_PROP_XI_DEBUG_LEVEL = 572, // Set debug level
CV_CAP_PROP_XI_AUTO_BANDWIDTH_CALCULATION = 573, // Automatic bandwidth calculation,
CV_CAP_PROP_XI_FFS_FILE_ID = 594, // File number.
CV_CAP_PROP_XI_FFS_FILE_SIZE = 580, // Size of file.
CV_CAP_PROP_XI_FREE_FFS_SIZE = 581, // Size of free camera FFS.
CV_CAP_PROP_XI_USED_FFS_SIZE = 582, // Size of used camera FFS.
CV_CAP_PROP_XI_FFS_ACCESS_KEY = 583, // Setting of key enables file operations on some cameras.
CV_CAP_PROP_XI_SENSOR_FEATURE_SELECTOR = 585, // Selects the current feature which is accessible by XI_PRM_SENSOR_FEATURE_VALUE.
CV_CAP_PROP_XI_SENSOR_FEATURE_VALUE = 586, // Allows access to sensor feature value currently selected by XI_PRM_SENSOR_FEATURE_SELECTOR.
// Properties for Android cameras
CV_CAP_PROP_ANDROID_FLASH_MODE = 8001,
CV_CAP_PROP_ANDROID_FOCUS_MODE = 8002,
CV_CAP_PROP_ANDROID_WHITE_BALANCE = 8003,
CV_CAP_PROP_ANDROID_ANTIBANDING = 8004,
CV_CAP_PROP_ANDROID_FOCAL_LENGTH = 8005,
CV_CAP_PROP_ANDROID_FOCUS_DISTANCE_NEAR = 8006,
CV_CAP_PROP_ANDROID_FOCUS_DISTANCE_OPTIMAL = 8007,
CV_CAP_PROP_ANDROID_FOCUS_DISTANCE_FAR = 8008,
CV_CAP_PROP_ANDROID_EXPOSE_LOCK = 8009,
CV_CAP_PROP_ANDROID_WHITEBALANCE_LOCK = 8010,
// Properties of cameras available through AVFOUNDATION interface
CV_CAP_PROP_IOS_DEVICE_FOCUS = 9001,
CV_CAP_PROP_IOS_DEVICE_EXPOSURE = 9002,
CV_CAP_PROP_IOS_DEVICE_FLASH = 9003,
CV_CAP_PROP_IOS_DEVICE_WHITEBALANCE = 9004,
CV_CAP_PROP_IOS_DEVICE_TORCH = 9005,
// Properties of cameras available through Smartek Giganetix Ethernet Vision interface
/* --- Vladimir Litvinenko (litvinenko.vladimir@gmail.com) --- */
CV_CAP_PROP_GIGA_FRAME_OFFSET_X = 10001,
CV_CAP_PROP_GIGA_FRAME_OFFSET_Y = 10002,
CV_CAP_PROP_GIGA_FRAME_WIDTH_MAX = 10003,
CV_CAP_PROP_GIGA_FRAME_HEIGH_MAX = 10004,
CV_CAP_PROP_GIGA_FRAME_SENS_WIDTH = 10005,
CV_CAP_PROP_GIGA_FRAME_SENS_HEIGH = 10006,
CV_CAP_PROP_INTELPERC_PROFILE_COUNT = 11001,
CV_CAP_PROP_INTELPERC_PROFILE_IDX = 11002,
CV_CAP_PROP_INTELPERC_DEPTH_LOW_CONFIDENCE_VALUE = 11003,
CV_CAP_PROP_INTELPERC_DEPTH_SATURATION_VALUE = 11004,
CV_CAP_PROP_INTELPERC_DEPTH_CONFIDENCE_THRESHOLD = 11005,
CV_CAP_PROP_INTELPERC_DEPTH_FOCAL_LENGTH_HORZ = 11006,
CV_CAP_PROP_INTELPERC_DEPTH_FOCAL_LENGTH_VERT = 11007,
// Intel PerC streams
CV_CAP_INTELPERC_DEPTH_GENERATOR = 1 << 29,
CV_CAP_INTELPERC_IMAGE_GENERATOR = 1 << 28,
CV_CAP_INTELPERC_GENERATORS_MASK = CV_CAP_INTELPERC_DEPTH_GENERATOR + CV_CAP_INTELPERC_IMAGE_GENERATOR
};
enum
{
// Data given from depth generator.
CV_CAP_OPENNI_DEPTH_MAP = 0, // Depth values in mm (CV_16UC1)
CV_CAP_OPENNI_POINT_CLOUD_MAP = 1, // XYZ in meters (CV_32FC3)
CV_CAP_OPENNI_DISPARITY_MAP = 2, // Disparity in pixels (CV_8UC1)
CV_CAP_OPENNI_DISPARITY_MAP_32F = 3, // Disparity in pixels (CV_32FC1)
CV_CAP_OPENNI_VALID_DEPTH_MASK = 4, // CV_8UC1
// Data given from RGB image generator.
CV_CAP_OPENNI_BGR_IMAGE = 5,
CV_CAP_OPENNI_GRAY_IMAGE = 6,
// Data given from IR image generator.
CV_CAP_OPENNI_IR_IMAGE = 7
};
// Supported output modes of OpenNI image generator
enum
{
CV_CAP_OPENNI_VGA_30HZ = 0,
CV_CAP_OPENNI_SXGA_15HZ = 1,
CV_CAP_OPENNI_SXGA_30HZ = 2,
CV_CAP_OPENNI_QVGA_30HZ = 3,
CV_CAP_OPENNI_QVGA_60HZ = 4
};
enum
{
CV_CAP_INTELPERC_DEPTH_MAP = 0, // Each pixel is a 16-bit integer. The value indicates the distance from an object to the camera's XY plane or the Cartesian depth.
CV_CAP_INTELPERC_UVDEPTH_MAP = 1, // Each pixel contains two 32-bit floating point values in the range of 0-1, representing the mapping of depth coordinates to the color coordinates.
CV_CAP_INTELPERC_IR_MAP = 2, // Each pixel is a 16-bit integer. The value indicates the intensity of the reflected laser beam.
CV_CAP_INTELPERC_IMAGE = 3
};
// gPhoto2 properties, if propertyId is less than 0 then work on widget with that __additive inversed__ camera setting ID
// Get IDs by using CAP_PROP_GPHOTO2_WIDGET_ENUMERATE.
// @see CvCaptureCAM_GPHOTO2 for more info
enum
{
CV_CAP_PROP_GPHOTO2_PREVIEW = 17001, // Capture only preview from liveview mode.
CV_CAP_PROP_GPHOTO2_WIDGET_ENUMERATE = 17002, // Readonly, returns (const char *).
CV_CAP_PROP_GPHOTO2_RELOAD_CONFIG = 17003, // Trigger, only by set. Reload camera settings.
CV_CAP_PROP_GPHOTO2_RELOAD_ON_CHANGE = 17004, // Reload all settings on set.
CV_CAP_PROP_GPHOTO2_COLLECT_MSGS = 17005, // Collect messages with details.
CV_CAP_PROP_GPHOTO2_FLUSH_MSGS = 17006, // Readonly, returns (const char *).
CV_CAP_PROP_SPEED = 17007, // Exposure speed. Can be readonly, depends on camera program.
CV_CAP_PROP_APERTURE = 17008, // Aperture. Can be readonly, depends on camera program.
CV_CAP_PROP_EXPOSUREPROGRAM = 17009, // Camera exposure program.
CV_CAP_PROP_VIEWFINDER = 17010 // Enter liveview mode.
};
//! Macro to construct the fourcc code of the codec. Same as CV_FOURCC()
#define CV_FOURCC_MACRO(c1, c2, c3, c4) (((c1) & 255) + (((c2) & 255) << 8) + (((c3) & 255) << 16) + (((c4) & 255) << 24))
/** @brief Constructs the fourcc code of the codec function
Simply call it with 4 chars fourcc code like `CV_FOURCC('I', 'Y', 'U', 'V')`
List of codes can be obtained at [Video Codecs by FOURCC](http://www.fourcc.org/codecs.php) page.
FFMPEG backend with MP4 container natively uses other values as fourcc code:
see [ObjectType](http://www.mp4ra.org/codecs.html).
*/
CV_INLINE int CV_FOURCC(char c1, char c2, char c3, char c4)
{
return CV_FOURCC_MACRO(c1, c2, c3, c4);
}
//! (Windows only) Open Codec Selection Dialog
#define CV_FOURCC_PROMPT -1
//! (Linux only) Use default codec for specified filename
#define CV_FOURCC_DEFAULT CV_FOURCC('I', 'Y', 'U', 'V')
#endif // OPENCV_VIDEOIO_LEGACY_CONSTANTS_H

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// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html.
#ifndef OPENCV_VIDEOIO_REGISTRY_HPP
#define OPENCV_VIDEOIO_REGISTRY_HPP
#include <opencv2/videoio.hpp>
namespace cv { namespace videoio_registry {
/** @addtogroup videoio_registry
This section contains API description how to query/configure available Video I/O backends.
Runtime configuration options:
- enable debug mode: `OPENCV_VIDEOIO_DEBUG=1`
- change backend priority: `OPENCV_VIDEOIO_PRIORITY_<backend>=9999`
- disable backend: `OPENCV_VIDEOIO_PRIORITY_<backend>=0`
- specify list of backends with high priority (>100000): `OPENCV_VIDEOIO_PRIORITY_LIST=FFMPEG,GSTREAMER`
@{
*/
/** @brief Returns backend API name or "UnknownVideoAPI(xxx)"
@param api backend ID (#VideoCaptureAPIs)
*/
CV_EXPORTS_W cv::String getBackendName(VideoCaptureAPIs api);
/** @brief Returns list of all available backends */
CV_EXPORTS_W std::vector<VideoCaptureAPIs> getBackends();
/** @brief Returns list of available backends which works via `cv::VideoCapture(int index)` */
CV_EXPORTS_W std::vector<VideoCaptureAPIs> getCameraBackends();
/** @brief Returns list of available backends which works via `cv::VideoCapture(filename)` */
CV_EXPORTS_W std::vector<VideoCaptureAPIs> getStreamBackends();
/** @brief Returns list of available backends which works via `cv::VideoWriter()` */
CV_EXPORTS_W std::vector<VideoCaptureAPIs> getWriterBackends();
/** @brief Returns true if backend is available */
CV_EXPORTS bool hasBackend(VideoCaptureAPIs api);
//! @}
}} // namespace
#endif // OPENCV_VIDEOIO_REGISTRY_HPP

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/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Copyright (C) 2013, OpenCV Foundation, all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
#ifdef __OPENCV_BUILD
#error this is a compatibility header which should not be used inside the OpenCV library
#endif
#include "opencv2/videoio.hpp"

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/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// Intel License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000, Intel Corporation, all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of Intel Corporation may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
#ifndef OPENCV_VIDEOIO_H
#define OPENCV_VIDEOIO_H
#include "opencv2/core/core_c.h"
#include "opencv2/videoio/legacy/constants_c.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/**
@addtogroup videoio_c
@{
*/
/****************************************************************************************\
* Working with Video Files and Cameras *
\****************************************************************************************/
/** @brief "black box" capture structure
In C++ use cv::VideoCapture
*/
typedef struct CvCapture CvCapture;
/** @brief start capturing frames from video file
*/
CVAPI(CvCapture*) cvCreateFileCapture( const char* filename );
/** @brief start capturing frames from video file. allows specifying a preferred API to use
*/
CVAPI(CvCapture*) cvCreateFileCaptureWithPreference( const char* filename , int apiPreference);
/** @brief start capturing frames from camera: index = camera_index + domain_offset (CV_CAP_*)
*/
CVAPI(CvCapture*) cvCreateCameraCapture( int index );
/** @brief grab a frame, return 1 on success, 0 on fail.
this function is thought to be fast
*/
CVAPI(int) cvGrabFrame( CvCapture* capture );
/** @brief get the frame grabbed with cvGrabFrame(..)
This function may apply some frame processing like
frame decompression, flipping etc.
@warning !!!DO NOT RELEASE or MODIFY the retrieved frame!!!
*/
CVAPI(IplImage*) cvRetrieveFrame( CvCapture* capture, int streamIdx CV_DEFAULT(0) );
/** @brief Just a combination of cvGrabFrame and cvRetrieveFrame
@warning !!!DO NOT RELEASE or MODIFY the retrieved frame!!!
*/
CVAPI(IplImage*) cvQueryFrame( CvCapture* capture );
/** @brief stop capturing/reading and free resources
*/
CVAPI(void) cvReleaseCapture( CvCapture** capture );
/** @brief retrieve capture properties
*/
CVAPI(double) cvGetCaptureProperty( CvCapture* capture, int property_id );
/** @brief set capture properties
*/
CVAPI(int) cvSetCaptureProperty( CvCapture* capture, int property_id, double value );
/** @brief Return the type of the capturer (eg, ::CV_CAP_VFW, ::CV_CAP_UNICAP)
It is unknown if created with ::CV_CAP_ANY
*/
CVAPI(int) cvGetCaptureDomain( CvCapture* capture);
/** @brief "black box" video file writer structure
In C++ use cv::VideoWriter
*/
typedef struct CvVideoWriter CvVideoWriter;
/** @brief initialize video file writer
*/
CVAPI(CvVideoWriter*) cvCreateVideoWriter( const char* filename, int fourcc,
double fps, CvSize frame_size,
int is_color CV_DEFAULT(1));
/** @brief write frame to video file
*/
CVAPI(int) cvWriteFrame( CvVideoWriter* writer, const IplImage* image );
/** @brief close video file writer
*/
CVAPI(void) cvReleaseVideoWriter( CvVideoWriter** writer );
// ***************************************************************************************
//! @name Obsolete functions/synonyms
//! @{
#define cvCaptureFromCAM cvCreateCameraCapture //!< @deprecated use cvCreateCameraCapture() instead
#define cvCaptureFromFile cvCreateFileCapture //!< @deprecated use cvCreateFileCapture() instead
#define cvCaptureFromAVI cvCaptureFromFile //!< @deprecated use cvCreateFileCapture() instead
#define cvCreateAVIWriter cvCreateVideoWriter //!< @deprecated use cvCreateVideoWriter() instead
#define cvWriteToAVI cvWriteFrame //!< @deprecated use cvWriteFrame() instead
//! @} Obsolete...
//! @} videoio_c
#ifdef __cplusplus
}
#endif
#endif //OPENCV_VIDEOIO_H