A helper component class for obtaining video frames from a file using OpenCV's VideoCapture and converting them to OpenCV Mat format. More...

Public Member Functions
virtual bool	DidUpdateThisFrame ()
	Use this to check if the Mat has changed since the last frame. Since it would not make sense to do expensive video processing in each Update call, check this value before doing any processing.

virtual void	Dispose ()
	Releases all resource used by the VideoCapture2MatHelper object.

virtual Source2MatHelperColorFormat	GetBaseColorFormat ()
	Return the video base color format.

virtual string	GetDeviceName ()
	Return the active video device name.

virtual float	GetFPS ()
	Return the video framerate.

virtual int	GetFrameCount ()
	Return the number of frames in the current video content.

virtual int	GetFrameIndex ()
	Return the video frame index.

virtual float	GetFramePosRatio ()
	Return the relative position of the video file: 0=start of the film, 1=end of the film.

virtual int	GetHeight ()
	Return the video height.

virtual Mat	GetMat ()
	Get the mat of the current frame.

virtual VideoCapture	GetVideoCapture ()
	Return the VideoCapture instance.

virtual int	GetWidth ()
	Return the video width.

virtual void	Initialize (bool autoPlay=true)
	Initialize this instance.

virtual void	Initialize (string requestedVideoFilePath, bool autoPlay=true)
	Initialize this instance.

virtual bool	IsInitialized ()
	Indicate whether this instance has been initialized.

virtual bool	IsPaused ()
	Indicate whether the video is paused.

virtual bool	IsPlaying ()
	Indicate whether the video is currently playing.

virtual void	Pause ()
	Pause the video.

virtual void	Play ()
	Start the video.

virtual void	SetFrameIndex (int index)
	Set the video frame index.

virtual void	SetFramePosRatio (float ratio)
	Set the relative position of the video file: 0=start of the film, 1=end of the film.

virtual void	Stop ()
	Stop the video.

Public Member Functions inherited from OpenCVForUnity.UnityUtils.Helper.IVideoSource2MatHelper
Public Member Functions inherited from OpenCVForUnity.UnityUtils.Helper.ISource2MatHelper

Protected Member Functions
virtual IEnumerator	_Initialize ()
	Initialize this instance by coroutine.

virtual IEnumerator	_WaitForEndOfFrameCoroutine ()

virtual void	CallReadFrame ()

virtual void	CancelInitCoroutine ()
	Cancel Init Coroutine.

virtual void	CancelWaitForEndOfFrameCoroutine ()
	Cancel WaitForEndOfFrame Coroutine.

virtual void	OnDestroy ()
	Raises the destroy event.

virtual void	OnValidate ()

virtual void	ReadFrame ()

virtual void	ReleaseResources ()
	To release the resources.

virtual void	Update ()

Protected Attributes
int	_apiPreference = Videoio.CAP_ANY

Mat	_imageBufferMat

System.Object	_imageBufferMatLockObject = new System.Object()

bool	_isPlaying = false

bool	_loop = true

UnityEvent	_onDisposed

Source2MatHelperErrorUnityEvent	_onErrorOccurred

UnityEvent	_onInitialized

Source2MatHelperColorFormat	_outputColorFormat = Source2MatHelperColorFormat.BGR

string	_requestedVideoFilePath = string.Empty

System.Object	_sync = new System.Object()

int	_timeoutFrameCount = 1500

VideoCapture	_videoCapture

System.Object	_videoCaptureLockObject = new System.Object()

bool	autoPlayAfterInitialize
	If set to true play after completion of initialization.

Source2MatHelperColorFormat	baseColorFormat = Source2MatHelperColorFormat.BGR
	The base color format.

Mat	baseMat
	The base mat.

bool	didUpdateThisFrame = false
	Whether the mat that can be obtained with the GetMat method has been updated in this frame. This flag is changed after waiting until WaitForEndOfFrame in the coroutine.

Mat	frameMat
	The frame mat.

IEnumerator	getFilePathCoroutine
	The get file path coroutine.

bool	hasInitDone = false
	Indicates whether this instance has been initialized.

IEnumerator	initCoroutine
	The initialization coroutine.

bool	isInitWaiting = false
	Indicates whether this instance is waiting for initialization to complete.

IEnumerator	waitForEndOfFrameCoroutine
	The waitForEndOfFrameCoroutine.

Properties
virtual int	apiPreference `[get, set]`
	Set the apiPreference. VideoCapture API backends identifier. (Advanced Option) See ReadMe.pdf for setup instructions for using CAP_FFMPEG on Windows platforms.

Mat	imageBufferMat `[get, set]`
	The image buffer mat.

virtual bool	isPlaying `[get, set]`
	isPlaying

virtual bool	loop `[get, set]`
	Indicate whether to play this video in a loop.

UnityEvent	onDisposed `[get, set]`
	UnityEvent that is triggered when this instance is disposed.

Source2MatHelperErrorUnityEvent	onErrorOccurred `[get, set]`
	UnityEvent that is triggered when this instance is error Occurred.

UnityEvent	onInitialized `[get, set]`
	UnityEvent that is triggered when this instance is initialized.

virtual Source2MatHelperColorFormat	outputColorFormat `[get, set]`
	Select the output color format.

virtual string	requestedVideoFilePath `[get, set]`
	Set the video file path, relative to the starting point of the "StreamingAssets" folder, or absolute path.

virtual int	timeoutFrameCount `[get, set]`
	The number of frames before the initialization process times out.

VideoCapture	videoCapture `[get, set]`
	videoCapture

Properties inherited from OpenCVForUnity.UnityUtils.Helper.IVideoSource2MatHelper
Properties inherited from OpenCVForUnity.UnityUtils.Helper.ISource2MatHelper

Detailed Description

A helper component class for obtaining video frames from a file using OpenCV's VideoCapture and converting them to OpenCV Mat format.

The VideoCapture2MatHelper class uses OpenCV's VideoCapture to read frames from a specified video file and converts each frame to an OpenCV Mat object. This component automatically retrieves the appropriate frame based on the video's frame rate, ensuring smooth playback and accurate frame timing.

To ensure compatibility across platforms, it is recommended to use the MJPEG format for video files, as it is widely supported by the VideoCapture class.

This component is particularly useful for applications that require frame-by-frame processing of video files in Unity, allowing seamless integration with OpenCV-based image processing routines.

Note: By setting outputColorFormat to BGR, processing that does not include extra color conversion is performed.

Attach this component to a GameObject and call GetMat() to retrieve the latest video frame in Mat format. The helper class manages video file loading, frame retrieval, and frame updates internally based on the video's playback rate.

Member Function Documentation

◆ _Initialize()

virtual IEnumerator OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper._Initialize ( )

protectedvirtual

Initialize this instance by coroutine.

◆ _WaitForEndOfFrameCoroutine()

virtual IEnumerator OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper._WaitForEndOfFrameCoroutine ( )

protectedvirtual

◆ CallReadFrame()

virtual void OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.CallReadFrame ( )

protectedvirtual

◆ CancelInitCoroutine()

virtual void OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.CancelInitCoroutine ( )

protectedvirtual

Cancel Init Coroutine.

◆ CancelWaitForEndOfFrameCoroutine()

virtual void OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.CancelWaitForEndOfFrameCoroutine ( )

protectedvirtual

Cancel WaitForEndOfFrame Coroutine.

◆ DidUpdateThisFrame()

virtual bool OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.DidUpdateThisFrame ( )

virtual

Use this to check if the Mat has changed since the last frame. Since it would not make sense to do expensive video processing in each Update call, check this value before doing any processing.

Returns: true, if the Mat has been updated false otherwise.

Implements OpenCVForUnity.UnityUtils.Helper.ISource2MatHelper.

◆ Dispose()

virtual void OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.Dispose ( )

virtual

Releases all resource used by the VideoCapture2MatHelper object.

Call Dispose when you are finished using the VideoCapture2MatHelper. The Dispose method leaves the VideoCapture2MatHelper in an unusable state. After calling Dispose, you must release all references to the VideoCapture2MatHelper so the garbage collector can reclaim the memory that the VideoCapture2MatHelper was occupying.

Implements OpenCVForUnity.UnityUtils.Helper.ISource2MatHelper.

◆ GetBaseColorFormat()

virtual Source2MatHelperColorFormat OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.GetBaseColorFormat ( )

virtual

Return the video base color format.

Returns: The video base color format.

Implements OpenCVForUnity.UnityUtils.Helper.ISource2MatHelper.

◆ GetDeviceName()

virtual string OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.GetDeviceName ( )

virtual

Return the active video device name.

Returns: The active video device name.

Implements OpenCVForUnity.UnityUtils.Helper.ISource2MatHelper.

◆ GetFPS()

virtual float OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.GetFPS ( )

virtual

Return the video framerate.

Returns: The video framerate.

Implements OpenCVForUnity.UnityUtils.Helper.IVideoSource2MatHelper.

◆ GetFrameCount()

virtual int OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.GetFrameCount ( )

virtual

Return the number of frames in the current video content.

Returns: The number of frames in the current video content.

Implements OpenCVForUnity.UnityUtils.Helper.IVideoSource2MatHelper.

◆ GetFrameIndex()

virtual int OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.GetFrameIndex ( )

virtual

Return the video frame index.

Returns: The video frame index.

Implements OpenCVForUnity.UnityUtils.Helper.IVideoSource2MatHelper.

◆ GetFramePosRatio()

virtual float OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.GetFramePosRatio ( )

virtual

Return the relative position of the video file: 0=start of the film, 1=end of the film.

Returns: The relative position of the video file: 0=start of the film, 1=end of the film.

Implements OpenCVForUnity.UnityUtils.Helper.IVideoSource2MatHelper.

◆ GetHeight()

virtual int OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.GetHeight ( )

virtual

Return the video height.

Returns: The video height.

Implements OpenCVForUnity.UnityUtils.Helper.ISource2MatHelper.

◆ GetMat()

virtual Mat OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.GetMat ( )

virtual

Get the mat of the current frame.

The Mat object's type is 'CV_8UC4' or 'CV_8UC3' or 'CV_8UC1' (ColorFormat is determined by the outputColorFormat setting). Please do not dispose of the returned mat as it will be reused.

Returns: The mat of the current frame.

Implements OpenCVForUnity.UnityUtils.Helper.ISource2MatHelper.

◆ GetVideoCapture()

virtual VideoCapture OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.GetVideoCapture ( )

virtual

Return the VideoCapture instance.

Returns: The VideoCapture instance.

◆ GetWidth()

virtual int OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.GetWidth ( )

virtual

Return the video width.

Returns: The video width.

Implements OpenCVForUnity.UnityUtils.Helper.ISource2MatHelper.

◆ Initialize() [1/2]

virtual void OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.Initialize ( bool autoPlay = true )

virtual

Initialize this instance.

Parameters

autoPlay If set to true play after completion of initialization.

Implements OpenCVForUnity.UnityUtils.Helper.ISource2MatHelper.

◆ Initialize() [2/2]

virtual void OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.Initialize	(	string	requestedVideoFilePath,
		bool	autoPlay = true )

virtual

Initialize this instance.

Parameters

requestedVideoFilePath	Requested video file path.
autoPlay	If set to `true` play after completion of initialization.

◆ IsInitialized()

virtual bool OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.IsInitialized ( )

virtual

Indicate whether this instance has been initialized.

Returns: true, if this instance has been initialized, false otherwise.

Implements OpenCVForUnity.UnityUtils.Helper.ISource2MatHelper.

◆ IsPaused()

virtual bool OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.IsPaused ( )

virtual

Indicate whether the video is paused.

Returns: true, if the video is paused, false otherwise.

Implements OpenCVForUnity.UnityUtils.Helper.ISource2MatHelper.

◆ IsPlaying()

virtual bool OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.IsPlaying ( )

virtual

Indicate whether the video is currently playing.

Returns: true, if the video is playing, false otherwise.

Implements OpenCVForUnity.UnityUtils.Helper.ISource2MatHelper.

◆ OnDestroy()

virtual void OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.OnDestroy ( )

protectedvirtual

Raises the destroy event.

◆ OnValidate()

virtual void OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.OnValidate ( )

protectedvirtual

◆ Pause()

virtual void OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.Pause ( )

virtual

Pause the video.

Implements OpenCVForUnity.UnityUtils.Helper.ISource2MatHelper.

◆ Play()

virtual void OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.Play ( )

virtual

Start the video.

Implements OpenCVForUnity.UnityUtils.Helper.ISource2MatHelper.

◆ ReadFrame()

virtual void OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.ReadFrame ( )

protectedvirtual

◆ ReleaseResources()

virtual void OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.ReleaseResources ( )

protectedvirtual

To release the resources.

◆ SetFrameIndex()

virtual void OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.SetFrameIndex ( int index )

virtual

Set the video frame index.

Parameters

index The video frame index.

Implements OpenCVForUnity.UnityUtils.Helper.IVideoSource2MatHelper.

◆ SetFramePosRatio()

virtual void OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.SetFramePosRatio ( float ratio )

virtual

Set the relative position of the video file: 0=start of the film, 1=end of the film.

Parameters

ratio The relative position of the video file: 0=start of the film, 1=end of the film.

Implements OpenCVForUnity.UnityUtils.Helper.IVideoSource2MatHelper.

◆ Stop()

virtual void OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.Stop ( )

virtual

Stop the video.

Implements OpenCVForUnity.UnityUtils.Helper.ISource2MatHelper.

◆ Update()

virtual void OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.Update ( )

protectedvirtual

Member Data Documentation

◆ _apiPreference

int OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper._apiPreference = Videoio.CAP_ANY

protected

◆ _imageBufferMat

Mat OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper._imageBufferMat

protected

◆ _imageBufferMatLockObject

System.Object OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper._imageBufferMatLockObject = new System.Object()

protected

◆ _isPlaying

bool OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper._isPlaying = false

protected

◆ _loop

bool OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper._loop = true

protected

◆ _onDisposed

UnityEvent OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper._onDisposed

protected

◆ _onErrorOccurred

Source2MatHelperErrorUnityEvent OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper._onErrorOccurred

protected

◆ _onInitialized

UnityEvent OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper._onInitialized

protected

◆ _outputColorFormat

Source2MatHelperColorFormat OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper._outputColorFormat = Source2MatHelperColorFormat.BGR

protected

◆ _requestedVideoFilePath

string OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper._requestedVideoFilePath = string.Empty

protected

◆ _sync

System.Object OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper._sync = new System.Object()

protected

◆ _timeoutFrameCount

int OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper._timeoutFrameCount = 1500

protected

◆ _videoCapture

VideoCapture OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper._videoCapture

protected

◆ _videoCaptureLockObject

System.Object OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper._videoCaptureLockObject = new System.Object()

protected

◆ autoPlayAfterInitialize

bool OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.autoPlayAfterInitialize

protected

If set to true play after completion of initialization.

◆ baseColorFormat

Source2MatHelperColorFormat OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.baseColorFormat = Source2MatHelperColorFormat.BGR

protected

The base color format.

◆ baseMat

Mat OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.baseMat

protected

The base mat.

◆ didUpdateThisFrame

bool OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.didUpdateThisFrame = false

protected

Whether the mat that can be obtained with the GetMat method has been updated in this frame. This flag is changed after waiting until WaitForEndOfFrame in the coroutine.

◆ frameMat

Mat OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.frameMat

protected

The frame mat.

◆ getFilePathCoroutine

IEnumerator OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.getFilePathCoroutine

protected

The get file path coroutine.

◆ hasInitDone

bool OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.hasInitDone = false

protected

Indicates whether this instance has been initialized.

◆ initCoroutine

IEnumerator OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.initCoroutine

protected

The initialization coroutine.

◆ isInitWaiting

bool OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.isInitWaiting = false

protected

Indicates whether this instance is waiting for initialization to complete.

◆ waitForEndOfFrameCoroutine

IEnumerator OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.waitForEndOfFrameCoroutine

protected

The waitForEndOfFrameCoroutine.

Property Documentation

◆ apiPreference

virtual int OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.apiPreference

getset

Set the apiPreference. VideoCapture API backends identifier. (Advanced Option) See ReadMe.pdf for setup instructions for using CAP_FFMPEG on Windows platforms.

◆ imageBufferMat

Mat OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.imageBufferMat

getsetprotected

The image buffer mat.

◆ isPlaying

virtual bool OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.isPlaying

getsetprotected

isPlaying

◆ loop

virtual bool OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.loop

getset

Indicate whether to play this video in a loop.

Implements OpenCVForUnity.UnityUtils.Helper.IVideoSource2MatHelper.

◆ onDisposed

UnityEvent OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.onDisposed

getset

UnityEvent that is triggered when this instance is disposed.

Implements OpenCVForUnity.UnityUtils.Helper.ISource2MatHelper.

◆ onErrorOccurred

Source2MatHelperErrorUnityEvent OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.onErrorOccurred

getset

UnityEvent that is triggered when this instance is error Occurred.

Implements OpenCVForUnity.UnityUtils.Helper.ISource2MatHelper.

◆ onInitialized

UnityEvent OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.onInitialized

getset

UnityEvent that is triggered when this instance is initialized.

Implements OpenCVForUnity.UnityUtils.Helper.ISource2MatHelper.

◆ outputColorFormat

virtual Source2MatHelperColorFormat OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.outputColorFormat

getset

Select the output color format.

Implements OpenCVForUnity.UnityUtils.Helper.ISource2MatHelper.

◆ requestedVideoFilePath

virtual string OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.requestedVideoFilePath

getset

Set the video file path, relative to the starting point of the "StreamingAssets" folder, or absolute path.

Implements OpenCVForUnity.UnityUtils.Helper.IVideoSource2MatHelper.

◆ timeoutFrameCount

virtual int OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.timeoutFrameCount

getset

The number of frames before the initialization process times out.

Implements OpenCVForUnity.UnityUtils.Helper.ISource2MatHelper.

◆ videoCapture

VideoCapture OpenCVForUnity.UnityUtils.Helper.VideoCapture2MatHelper.videoCapture

getsetprotected

videoCapture

The documentation for this class was generated from the following file:

OpenCVForUnity/Assets/OpenCVForUnity/org/opencv/unity/Helper/Source2MatHelper/VideoCapture2MatHelper.cs

Public Member Functions

Protected Member Functions

Protected Attributes

Properties

Detailed Description

Member Function Documentation

◆ _Initialize()

◆ _WaitForEndOfFrameCoroutine()

◆ CallReadFrame()

◆ CancelInitCoroutine()

◆ CancelWaitForEndOfFrameCoroutine()

◆ DidUpdateThisFrame()

◆ Dispose()

◆ GetBaseColorFormat()

◆ GetDeviceName()

◆ GetFPS()

◆ GetFrameCount()

◆ GetFrameIndex()

◆ GetFramePosRatio()

◆ GetHeight()

◆ GetMat()

◆ GetVideoCapture()

◆ GetWidth()

◆ Initialize() [1/2]

◆ Initialize() [2/2]

◆ IsInitialized()

◆ IsPaused()

◆ IsPlaying()

◆ OnDestroy()

◆ OnValidate()

◆ Pause()

◆ Play()

◆ ReadFrame()

◆ ReleaseResources()

◆ SetFrameIndex()

◆ SetFramePosRatio()

◆ Stop()

◆ Update()

Member Data Documentation

◆ _apiPreference

◆ _imageBufferMat

◆ _imageBufferMatLockObject

◆ _isPlaying

◆ _loop

◆ _onDisposed

◆ _onErrorOccurred

◆ _onInitialized

◆ _outputColorFormat

◆ _requestedVideoFilePath

◆ _sync

◆ _timeoutFrameCount

◆ _videoCapture

◆ _videoCaptureLockObject

◆ autoPlayAfterInitialize

◆ baseColorFormat

◆ baseMat

◆ didUpdateThisFrame

◆ frameMat

◆ getFilePathCoroutine

◆ hasInitDone

◆ initCoroutine

◆ isInitWaiting

◆ waitForEndOfFrameCoroutine

Property Documentation

◆ apiPreference

◆ imageBufferMat

◆ isPlaying

◆ loop

◆ onDisposed

◆ onErrorOccurred

◆ onInitialized

◆ outputColorFormat

◆ requestedVideoFilePath

◆ timeoutFrameCount

◆ videoCapture