C# 클래스 CSJ2K.j2k.entropy.encoder.PostCompRateAllocator

This is the abstract class from which post-compression rate allocators which generate layers should inherit. The source of data is a 'CodedCBlkDataSrcEnc' which delivers entropy coded blocks with rate-distortion statistics.

The post compression rate allocator implementation should create the layers, according to a rate allocation policy, and send the packets to a CodestreamWriter. Since the rate allocator sends the packets to the bit stream then it should output the packets to the bit stream in the order imposed by the bit stream profiles.

상속: CSJ2K.j2k.image.ImgDataAdapter

파일 보기 프로젝트 열기: cureos/csj2k 1 사용 예제들

보호된 프로퍼티들

프로퍼티	타입	설명
encSpec	CSJ2K.j2k.encoder.EncoderSpecs
num_Layers	int
src	CodedCBlkDataSrcEnc

공개 메소드들

메소드	설명
PostCompRateAllocator ( CodedCBlkDataSrcEnc src, int nl, CSJ2K.j2k.codestream.writer.CodestreamWriter bw, CSJ2K.j2k.encoder.EncoderSpecs encSpec ) : System	Initializes the source of entropy coded data.
createInstance ( CodedCBlkDataSrcEnc src, CSJ2K.j2k.util.ParameterList pl, float rate, CSJ2K.j2k.codestream.writer.CodestreamWriter bw, CSJ2K.j2k.encoder.EncoderSpecs encSpec ) : PostCompRateAllocator	Creates a PostCompRateAllocator object for the appropriate rate allocation parameters in the parameter list 'pl', having 'src' as the source of entropy coded data, 'rate' as the target bitrate and 'bw' as the bit stream writer object.
initialize ( ) : void	Initializes the rate allocation points, taking into account header overhead and such. This method must be called after the header has been simulated but before calling the runAndWrite() one. The header must be rewritten after a call to this method since the number of layers may change.
runAndWrite ( ) : void	Runs the rate allocation algorithm and writes the data to the bit stream. This must be called after the initialize() method.

비공개 메소드들

메소드	설명
parseAlayers ( System params_Renamed, float rate ) : CSJ2K.j2k.entropy.encoder.LayersInfo	Convenience method that parses the 'Alayers' option.

메소드 상세

PostCompRateAllocator() 공개 메소드

Initializes the source of entropy coded data.

public PostCompRateAllocator ( CodedCBlkDataSrcEnc src, int nl, CSJ2K.j2k.codestream.writer.CodestreamWriter bw, CSJ2K.j2k.encoder.EncoderSpecs encSpec ) : System
src	CodedCBlkDataSrcEnc	The source of entropy coded data. /// ///
nl	int
bw	CSJ2K.j2k.codestream.writer.CodestreamWriter	The packet bit stream writer. /// ///
encSpec	CSJ2K.j2k.encoder.EncoderSpecs
리턴	System

createInstance() 공개 정적인 메소드

Creates a PostCompRateAllocator object for the appropriate rate allocation parameters in the parameter list 'pl', having 'src' as the source of entropy coded data, 'rate' as the target bitrate and 'bw' as the bit stream writer object.

public static createInstance ( CodedCBlkDataSrcEnc src, CSJ2K.j2k.util.ParameterList pl, float rate, CSJ2K.j2k.codestream.writer.CodestreamWriter bw, CSJ2K.j2k.encoder.EncoderSpecs encSpec ) : PostCompRateAllocator
src	CodedCBlkDataSrcEnc	The source of entropy coded data. /// ///
pl	CSJ2K.j2k.util.ParameterList	The parameter lis (or options). /// ///
rate	float	The target bitrate for the rate allocation /// ///
bw	CSJ2K.j2k.codestream.writer.CodestreamWriter	The bit stream writer object, where the bit stream data will /// be written. /// ///
encSpec	CSJ2K.j2k.encoder.EncoderSpecs
리턴	PostCompRateAllocator

initialize() 공개 추상적인 메소드

Initializes the rate allocation points, taking into account header overhead and such. This method must be called after the header has been simulated but before calling the runAndWrite() one. The header must be rewritten after a call to this method since the number of layers may change.

public abstract initialize ( ) : void
리턴	void

runAndWrite() 공개 추상적인 메소드

Runs the rate allocation algorithm and writes the data to the bit stream. This must be called after the initialize() method.

public abstract runAndWrite ( ) : void
리턴	void

프로퍼티 상세

encSpec 보호되어 있는 프로퍼티

The source of entropy coded data

protected EncoderSpecs,CSJ2K.j2k.encoder encSpec
리턴	CSJ2K.j2k.encoder.EncoderSpecs

num_Layers 보호되어 있는 프로퍼티

The number of layers.

protected int num_Layers
리턴	int

src 보호되어 있는 프로퍼티

The source of entropy coded data

protected CodedCBlkDataSrcEnc src
리턴	CodedCBlkDataSrcEnc