dirac::FrameDecompressor Class Reference

Compress a single image frame. More...

#include <frame_decompress.h>

List of all members.

Public Member Functions
	FrameDecompressor (DecoderParams &decp, ChromaFormat cf)
	Constructor.
	~FrameDecompressor ()
	Destructor.
bool	Decompress (FrameBuffer &my_buffer)
	Decompress the next frame into the buffer.
bool	ReadFrameHeader (const FrameBuffer &my_buffer)
	Reads the header data.
const FrameParams &	GetFrameParams () const
	Returns the frame parameters of the current frame being decoded.

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Detailed Description

Compress a single image frame.

This class decompresses a single frame at a time, using parameters supplied at its construction. FrameDecompressor is used by SequenceDecompressor.

Definition at line 56 of file frame_decompress.h.

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Constructor & Destructor Documentation

FrameDecompressor::FrameDecompressor (  DecoderParams &  decp, ChromaFormat  cf )

Constructor. Creates a FrameDecompressor with specific set of parameters the control the decompression process. It decodes motion data before decoding each component of the frame. Parameters: decp  decoder parameters cf  the chroma format of the frame being decompressed Definition at line 57 of file frame_decompress.cpp.

FrameDecompressor::~FrameDecompressor (   )

Destructor. Releases resources. Definition at line 63 of file frame_decompress.cpp.

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Member Function Documentation

bool FrameDecompressor::Decompress (  FrameBuffer &  my_buffer  )

Decompress the next frame into the buffer. Decompresses the next frame from the stream and place at the end of a frame buffer. Returns true if able to decode successfully, false otherwise Parameters: my_buffer  picture buffer into which the frame is placed Definition at line 76 of file frame_decompress.cpp. References dirac::DecoderParams::BitsIn(), dirac::FrameParams::CFormat(), dirac::Frame::Clip(), dirac::MotionCompensator::CompensateFrame(), dirac::BitInputManager::End(), dirac::BitInputManager::FlushInput(), dirac::FrameParams::FrameNum(), dirac::FrameParams::FSort(), dirac::FrameBuffer::GetComponent(), dirac::Frame::GetFparams(), dirac::FrameBuffer::GetFParams(), dirac::FrameBuffer::GetFrame(), dirac::GolombDecode(), dirac::BitInputManager::InputBit(), dirac::BitInputManager::InputByte(), dirac::FrameBuffer::PushFrame(), ReadFrameHeader(), dirac::FrameParams::Refs(), dirac::FrameParams::SetExpiryTime(), dirac::FrameParams::SetFrameNum(), dirac::FrameParams::SetFSort(), dirac::UnsignedGolombDecode(), dirac::CodecParams::Verbose(), dirac::FrameParams::Xl(), dirac::CodecParams::XNumMB(), dirac::FrameParams::Yl(), and dirac::CodecParams::YNumMB(). Referenced by dirac::SequenceDecompressor::DecompressNextFrame().

bool FrameDecompressor::ReadFrameHeader (  const FrameBuffer &  my_buffer  )

Reads the header data. Reads the header data associated with decompressing the frame Parameters: my_buffer  picture buffer from which frame dimensions are obtained Definition at line 67 of file frame_decompress.cpp. References dirac::FrameBuffer::GetFParams(), dirac::FrameParams::Xl(), and dirac::FrameParams::Yl(). Referenced by Decompress(), and dirac::SequenceDecompressor::ReadNextFrameHeader().

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

• C:/guliverkli/src/filters/parser/diracsplitter/libdirac/libdirac_decoder/frame_decompress.h
• C:/guliverkli/src/filters/parser/diracsplitter/libdirac/libdirac_decoder/frame_decompress.cpp

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