cv::cudacodec::RawVideoSource Class Reference

Interface for video demultiplexing. : More...

#include <opencv2/cudacodec.hpp>

Public Member Functions
virtual	~RawVideoSource ()
virtual FormatInfo	format () const =0
	Returns information about video file format. More...
virtual bool	get (const int propertyId, double &propertyVal) const =0
	Retrieves the specified property used by the VideoSource. More...
virtual void	getExtraData (cv::Mat &extraData) const =0
	Returns any extra data associated with the video source. More...
virtual int	getFirstFrameIdx () const =0
	Retrieve the index of the first frame that will returned after construction. More...
virtual bool	getNextPacket (unsigned char **data, size_t *size)=0
	Returns next packet with RAW video frame. More...
virtual bool	lastPacketContainsKeyFrame () const
	Returns true if the last packet contained a key frame. More...
virtual void	updateFormat (const FormatInfo &videoFormat)=0
	Updates the coded width and height inside format. More...

Detailed Description

Interface for video demultiplexing. :

User can implement own demultiplexing by implementing this interface.

Constructor & Destructor Documentation

~RawVideoSource()

virtual cv::cudacodec::RawVideoSource::~RawVideoSource ( )

inlinevirtual

Member Function Documentation

format()

virtual FormatInfo cv::cudacodec::RawVideoSource::format ( ) const

pure virtual

Returns information about video file format.

get()

virtual bool cv::cudacodec::RawVideoSource::get ( const int  propertyId, double &  propertyVal  ) const

pure virtual

Retrieves the specified property used by the VideoSource.

Parameters

propertyId	Property identifier from cv::VideoCaptureProperties (eg. cv::CAP_PROP_POS_MSEC, cv::CAP_PROP_POS_FRAMES, ...) or one from Additional flags for video I/O API backends.
propertyVal	Value for the specified property.

Returns

true unless the property is unset set or not supported.

getExtraData()

virtual void cv::cudacodec::RawVideoSource::getExtraData ( cv::Mat &  extraData ) const

pure virtual

Returns any extra data associated with the video source.

Parameters

extraData

1D cv::Mat containing the extra data if it exists.

getFirstFrameIdx()

virtual int cv::cudacodec::RawVideoSource::getFirstFrameIdx ( ) const

pure virtual

Retrieve the index of the first frame that will returned after construction.

Returns

index of the index of the first frame that will returned after construction.

Note

To reduce the decoding overhead when initializing VideoReader to start its decoding from frame N, RawVideoSource should seek to the first valid key frame less than or equal to N and return that index here.

getNextPacket()

virtual bool cv::cudacodec::RawVideoSource::getNextPacket ( unsigned char **  data, size_t *  size  )

pure virtual

Returns next packet with RAW video frame.

Parameters

data	Pointer to frame data.
size	Size in bytes of current frame.

lastPacketContainsKeyFrame()

virtual bool cv::cudacodec::RawVideoSource::lastPacketContainsKeyFrame ( ) const

inlinevirtual

Returns true if the last packet contained a key frame.

updateFormat()

virtual void cv::cudacodec::RawVideoSource::updateFormat ( const FormatInfo &  videoFormat )

pure virtual

Updates the coded width and height inside format.

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

• opencv2/cudacodec.hpp