OpalRFC4175Decoder Class Reference

#include <rfc4175.h>

Inheritance diagram for OpalRFC4175Decoder:


Public Member Functions
	OpalRFC4175Decoder (const OpalMediaFormat &inputMediaFormat, const OpalMediaFormat &outputMediaFormat)
	~OpalRFC4175Decoder ()
virtual PINDEX	PixelsToBytes (PINDEX pixels) const =0
virtual PINDEX	BytesToPixels (PINDEX pixels) const =0
BOOL	ConvertFrames (const RTP_DataFrame &input, RTP_DataFrameList &output)
Protected Member Functions
BOOL	Initialise ()
virtual BOOL	DecodeFrames (RTP_DataFrameList &output)=0
Protected Attributes
RTP_DataFrameList	inputFrames
std::vector< PINDEX >	scanlineCounts
PINDEX	frameWidth
PINDEX	frameHeight
BOOL	first
DWORD	lastSequenceNumber
DWORD	lastTimeStamp

Constructor & Destructor Documentation

OpalRFC4175Decoder::OpalRFC4175Decoder	(	const OpalMediaFormat &	inputMediaFormat,
		const OpalMediaFormat &	outputMediaFormat
	)

Parameters:

inputMediaFormat	Input media format
outputMediaFormat	Output media format

OpalRFC4175Decoder::~OpalRFC4175Decoder ( )

Member Function Documentation

virtual PINDEX OpalRFC4175Decoder::PixelsToBytes ( PINDEX pixels ) const [pure virtual]

Implements OpalRFC4175Transcoder.

Implemented in Opal_RFC4175YCbCr420_to_YUV420P, and Opal_RFC4175RGB_to_RGB24.

virtual PINDEX OpalRFC4175Decoder::BytesToPixels ( PINDEX pixels ) const [pure virtual]

Implemented in Opal_RFC4175YCbCr420_to_YUV420P, and Opal_RFC4175RGB_to_RGB24.

BOOL OpalRFC4175Decoder::ConvertFrames	(	const RTP_DataFrame &	input,
		RTP_DataFrameList &	output
	)			`[virtual]`

Convert the data from one format to another. This function takes the input data as a RTP_DataFrame and converts it to its output format, placing it (possibly) into multiple RTP_DataFrame objects.

The default behaviour makes sure the output list has only one element in it and calls the Convert() function.

Returns FALSE if the conversion fails.

Reimplemented from OpalUncompVideoTranscoder.

BOOL OpalRFC4175Decoder::Initialise ( ) [protected]