Package fi.helsinki.cs.ohtu.mpeg2.video

Provides classes for MPEG-2 video encoding.

See:
Description

Interface Summary

Block	This is the common interface for all types of blocks.
DiscreteCosineTransform	This is an interface for implementations of the forward discrete cosine transform.
InverseDiscreteCosineTransform	This is an interface for implementations of the inverse discrete cosine transform.

Class Summary

ChromaSubsampler	Performs chromacity subsampling on byte values.
DiscreteCosineTransformUtils	This class contains simple auxiliary functions used in the process of encoding blocks.
IntraBlock	Represents a block in an intra type macroblock.
IntraBlock.Predictors	Encapsulates the predictors used in the encoding of intra blocks.
IntraMacroblock	IntraMacroblock A macroblock contains a section of the luminance component and the spatially corresponding chrominance components.
MacroblockHeader	Represents the continuous purely header fields in a MPEG-2 macroblock.
MotionVector	Represents a motion vector.
MotionVector.Predictors	Preserves that context of previously written motion vectors to determine correct binary encoding when writing motion vectors.
NonIntraBlock	Represents a block in a P- or B-type macroblock.
PictureCodingExtensionHeader	Represents the picture coding extension header.
PictureHeader	Represents the baseline picture header.
Quantizer	Contains the quantization functionality used in MPEG-2.
RGBToYCbCrConverter	A converter from RGB ro YCbCr colour space.
SequenceExtensionHeader	Represents extension part of the mandatory headers in a MPEG-2 video sequence.
SequenceHeader	Represents the first part of the headers in a MPEG-2 video sequence.
SimpleDiscreteCosineTransform	The algorithms in this class are the trivial algorithms directly based on the definitions of the transforms.
SliceHeader	Represents the slice header.
VLC	VLC contains methods for writing to a BitOutputStream the various variable length codes used in MPEG-2 encoding.
VLCTables	The tables in this class are from T-REC-H.262-200002-I annex B.
YCbCrToRGBConverter	A converter from YCbCr to RGB.
ZigZagScanner	The zig-zag scanning pattern for run-length coding of the quantized DCT coefficients.

Enum Summary

ExtensionHeaderIdentifier	Identifies an MPEG extension header.
IntraBlock.ColourComponent	The possible types of intra blocks.
PictureCodingExtensionHeader.Flag	Represents the different non-frame-structure flags possibly specified by this header.
PictureCodingExtensionHeader.FrameStructure	Represents the allowed combinations of values for the picture structure, top field first, repeat first field and progressive frame fields.
PictureHeader.CodingType	Represents the allowed values for the coding type field.
Quantizer.ScaleType	This enumeration contains the two quantizer scale mappings used in MPEG-2.
SequenceExtensionHeader.ChromaFormat	Represents the allowed values for the chroma format field.
SequenceExtensionHeader.Level	Represents the allowed values for the level field.
SequenceExtensionHeader.Profile	Represents the allowed values for the profile field.
SequenceExtensionHeader.SpecialProfileAndLevel	Represents the allowed values for the special profile and level field.
SequenceHeader.AspectRatioInformation	Represents the allowed values for the aspect ratio information field.
SequenceHeader.FrameRateCode	Represents the allowed values for the frame rate code field.
VLC.DCTCoefficientTable	These are the two variable length code tables used for coding DCT coefficients.
VLC.IntraVLCFormat	These are the two intra VLC format options.

Package fi.helsinki.cs.ohtu.mpeg2.video Description

Provides classes for MPEG-2 video encoding.

MPEG-2 video encoding

The package does not contain a ready, 'out-of-box' video encoder. However, it provides essential parts to build a fully working encoder. See for examples in the package examples.