H264DecoderNvCodecHelper Class Reference

#include <H264DecoderNvCodecHelper.h>

Inheritance diagram for H264DecoderNvCodecHelper:

Collaboration diagram for H264DecoderNvCodecHelper:

Public Member Functions
	H264DecoderNvCodecHelper (int mWidth, int mHieght)
	H264DecoderNvCodecHelper ()
	~H264DecoderNvCodecHelper ()
bool	init (std::function< void(frame_sp &)> send, std::function< frame_sp()> makeFrame)
void	ConvertToPlanar (uint8_t *pHostFrame, int nWidth, int nHeight, int nBitDepth)
void	process (void *inputFrameBuffer, size_t inputFrameSize, uint64_t inputFrameTS)
Public Member Functions inherited from NvDecoder
	NvDecoder (CUcontext cuContext, int nWidth, int nHeight, bool bUseDeviceFrame, cudaVideoCodec eCodec, std::mutex *pMutex=NULL, bool bLowLatency=false, bool bDeviceFramePitched=false, const Rect *pCropRect=NULL, const Dim *pResizeDim=NULL, int maxWidth=0, int maxHeight=0)
	This function is used to initialize the decoder session. Application must call this function to initialize the decoder, before starting to decode any frames.
	NvDecoder ()
	~NvDecoder ()
CUcontext	GetContext ()
	This function is used to get the current CUDA context.
int	GetWidth ()
	This function is used to get the current decode width.
int	GetHeight ()
	This function is used to get the current decode height.
int	GetFrameSize ()
	This function is used to get the current frame size based on pixel format.
int	GetDeviceFramePitch ()
	This function is used to get the pitch of the device buffer holding the decoded frame.
int	GetBitDepth ()
	This function is used to get the bit depth associated with the pixel format.
CUVIDEOFORMAT	GetVideoFormatInfo ()
	This function is used to get information about the video stream (codec, display parameters etc)
std::string	GetVideoInfo () const
	This function is used to print information about the video stream.
bool	Decode (const uint8_t *pData, int nSize, uint8_t ***pppFrame, int *pnFrameReturned, uint32_t flags=0, int64_t **ppTimestamp=NULL, int64_t timestamp=0, CUstream stream=0)
	This function decodes a frame and returns frames that are available for display. The frames should be used or buffered before making subsequent calls to the Decode function again.
bool	DecodeLockFrame (const uint8_t *pData, int nSize, uint8_t ***pppFrame, int *pnFrameReturned, uint32_t flags=0, int64_t **ppTimestamp=NULL, int64_t timestamp=0, CUstream stream=0)
	This function decodes a frame and returns the locked frame buffers This makes the buffers available for use by the application without the buffers getting overwritten, even if subsequent decode calls are made. The frame buffers remain locked, until UnlockFrame() is called.
void	UnlockFrame (uint8_t **ppFrame, int nFrame)
	This function unlocks the frame buffer and makes the frame buffers available for write again.
int	setReconfigParams (const Rect *pCropRect, const Dim *pResizeDim)
	This function allow app to set decoder reconfig params.

Public Attributes
std::function< void(frame_sp &)>	send
std::function< frame_sp()>	makeFrame

Private Attributes
boost::shared_ptr< NvDecoder >	helper
std::queue< uint64_t >	framesTimestampEntry

Constructor & Destructor Documentation

H264DecoderNvCodecHelper() [1/2]

H264DecoderNvCodecHelper::H264DecoderNvCodecHelper	(	int	mWidth,
		int	mHieght )

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H264DecoderNvCodecHelper() [2/2]

H264DecoderNvCodecHelper::H264DecoderNvCodecHelper ( )

inline

~H264DecoderNvCodecHelper()

H264DecoderNvCodecHelper::~H264DecoderNvCodecHelper ( )

inline

Member Function Documentation

ConvertToPlanar()

void H264DecoderNvCodecHelper::ConvertToPlanar	(	uint8_t *	pHostFrame,
		int	nWidth,
		int	nHeight,
		int	nBitDepth )

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init()

bool H264DecoderNvCodecHelper::init	(	std::function< void(frame_sp &)>	send,
		std::function< frame_sp()>	makeFrame )

process()

void H264DecoderNvCodecHelper::process	(	void *	inputFrameBuffer,
		size_t	inputFrameSize,
		uint64_t	inputFrameTS )

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Member Data Documentation

framesTimestampEntry

std::queue<uint64_t> H264DecoderNvCodecHelper::framesTimestampEntry

private

helper

boost::shared_ptr<NvDecoder> H264DecoderNvCodecHelper::helper

private

makeFrame

std::function<frame_sp()> H264DecoderNvCodecHelper::makeFrame

send

std::function<void( frame_sp&)> H264DecoderNvCodecHelper::send

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

• base/src/H264DecoderNvCodecHelper.h
• base/src/H264DecoderNvCodecHelper.cpp