rawspeed::PanasonicV8Decompressor Class Reference

#include "decompressors/PanasonicV8Decompressor.h"

Inheritance diagram for rawspeed::PanasonicV8Decompressor:

Collaboration diagram for rawspeed::PanasonicV8Decompressor:

Classes
struct	DecoderLUTEntry
struct	DecompressorParams
struct	DecompressorParamsBuilder
class	InternalDecoder
	Utility class for Panasonic V8 entropy decoding. More...

Public Types
using	Bayer2x2 = std::array<uint16_t, 4>
	Four values, one for each component of the sensor's color filter array.

Public Member Functions
	PanasonicV8Decompressor (RawImage outputImg, DecompressorParams mParams_)
void	decompress () const
	Run the decompressor on the provided raw image.

Private Member Functions
void	decompressStrip (Array2DRef< uint16_t > out, InternalDecoder decoder) const

Private Attributes
RawImage	mRawOutput
const DecompressorParams	mParams

Detailed Description

Decompressor for Panasonic's RW2 version 8 format.

V8 is similar to lossless JPEG compression from the JPEG 92 spec and DNG Each raw file is broken up into a number of separate strips, each of which was separately encoded, and which can be decoded independently. For each strip, an initial predicted value is provided. The strip's data buffer is then decoded using the decoding table provided in metadata. Each value decoded from the strip is a difference between the predicted value and actual value, allowing the actual value to be reconstructed.

Definition at line 48 of file PanasonicV8Decompressor.h.

Member Typedef Documentation

Bayer2x2

using rawspeed::PanasonicV8Decompressor::Bayer2x2 = std::array<uint16_t, 4>

Four values, one for each component of the sensor's color filter array.

Definition at line 54 of file PanasonicV8Decompressor.h.

Constructor & Destructor Documentation

PanasonicV8Decompressor()

rawspeed::PanasonicV8Decompressor::PanasonicV8Decompressor	(	RawImage	outputImg,
		DecompressorParams	mParams_ )

Definition at line 342 of file PanasonicV8Decompressor.cpp.

References mParams, mRawOutput, ThrowRDE, and rawspeed::UINT16.

Member Function Documentation

decompress()

void rawspeed::PanasonicV8Decompressor::decompress

(

)

const

Run the decompressor on the provided raw image.

Definition at line 366 of file PanasonicV8Decompressor.cpp.

References rawspeed::CroppedArray2DRef(), decompressStrip(), mParams, mRawOutput, and rawspeed_get_number_of_processor_cores().

Referenced by rawspeed::Rw2Decoder::decodeRawV8().

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decompressStrip()

void rawspeed::PanasonicV8Decompressor::decompressStrip ( Array2DRef< uint16_t > out, InternalDecoder decoder ) const

private

Thread safe function for decompressing a single data-stripstrip within a Rw2V8 raw image.

Definition at line 401 of file PanasonicV8Decompressor.cpp.

References rawspeed::Array2DRef(), rawspeed::PanasonicV8Decompressor::InternalDecoder::decodeNextDiffValue(), rawspeed::Array2DRef< T >::height(), invariant, mParams, rawspeed::TiledArray2DRef(), and rawspeed::Array2DRef< T >::width().

Referenced by decompress().

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Member Data Documentation

mParams

const DecompressorParams rawspeed::PanasonicV8Decompressor::mParams

private

Definition at line 134 of file PanasonicV8Decompressor.h.

Referenced by PanasonicV8Decompressor(), decompress(), and decompressStrip().

mRawOutput

RawImage rawspeed::PanasonicV8Decompressor::mRawOutput

mutableprivate

Definition at line 50 of file PanasonicV8Decompressor.h.

Referenced by PanasonicV8Decompressor(), and decompress().

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

• librawspeed/decompressors/PanasonicV8Decompressor.h
• librawspeed/decompressors/PanasonicV8Decompressor.cpp