io_tiff.c File Reference

I/O functions related to TIFF images. More...

#include "contributors.h"
#include "global.h"
#include "report.h"
#include "io_tiff.h"

Include dependency graph for io_tiff.c:

Go to the source code of this file.

Functions
void	OpenTiffFile (VideoDataFile *input_file, InputParameters *p_Inp, int FrameNumberInFile)
int	AllocateTIFFBufferMemory (unsigned char *buf, int buffersize)
void	DeleteTiffBufferMemory (unsigned char *buf)
static int64	ReadTIFFSize (int video_file)
static void	ReadTIFFHeader (int vfile, TIFFHeader *tiff)
static void	ReadTIFFIFDEntry (int vfile, TIFFHeader *tiffHeader, uint16 *ifd_count, TIFFIFDEntry **tiffIFD)
static void	ParseTIFFIFD (uint16 ifd_count, TIFFIFDEntry *tiffIFD, FrameFormat *source)
void	ReadTIFFImage (InputParameters *p_Inp, VideoDataFile *input_file, int FrameNoInFile, FrameFormat *source, unsigned char *buf)
Variables
int64	bufferSize = 0

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Detailed Description

I/O functions related to TIFF images.

Author:

Main contributors (see contributors.h for copyright, address and affiliation details)

• Karsten Sühring <suehring@hhi.de>
• Alexis Michael Tourapis <alexismt@ieee.org>

Definition in file io_tiff.c.

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Function Documentation

int AllocateTIFFBufferMemory	(	unsigned char *	buf,
		int	buffersize
	)

Create Frame Memory buffer.

Definition at line 72 of file io_tiff.c.

Referenced by ReadTIFFImage().

void DeleteTiffBufferMemory

(

unsigned char *

buf

)

Delete Frame Memory buffer.

Definition at line 87 of file io_tiff.c.

void OpenTiffFile	(	VideoDataFile *	input_file,
		InputParameters *	p_Inp,
		int	FrameNumberInFile
	)

Open file containing a single frame.

Definition at line 30 of file io_tiff.c.

Referenced by ReadTIFFImage().

static void ParseTIFFIFD	(	uint16	ifd_count,
		TIFFIFDEntry *	tiffIFD,
		FrameFormat *	source
	)			[static]

Parse Tiff IFD entries.

Definition at line 177 of file io_tiff.c.

Referenced by ReadTIFFImage().

static void ReadTIFFHeader	(	int	vfile,
		TIFFHeader *	tiff
	)			[static]

Reads Tiff File Header.

Definition at line 121 of file io_tiff.c.

Referenced by ReadTIFFImage().

static void ReadTIFFIFDEntry	(	int	vfile,
		TIFFHeader *	tiffHeader,
		uint16 *	ifd_count,
		TIFFIFDEntry **	tiffIFD
	)			[static]

Reads Tiff IFD entry.

Definition at line 137 of file io_tiff.c.

References error().

Referenced by ReadTIFFImage().

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void ReadTIFFImage	(	InputParameters *	p_Inp,
		VideoDataFile *	input_file,
		int	FrameNoInFile,
		FrameFormat *	source,
		unsigned char *	buf
	)

Reads entire tiff file from harddrive. Any processing is done in memory, reducing I/O processing.

Parameters:

	p_Inp	Input configuration parameters
	input_file	Input file to read from
	FrameNoInFile	Frame number in the source file
	source	source file (on disk) information
	buf	memory buffer

Definition at line 259 of file io_tiff.c.

References AllocateTIFFBufferMemory(), OpenTiffFile(), ParseTIFFIFD(), ReadTIFFHeader(), ReadTIFFIFDEntry(), and ReadTIFFSize().

Referenced by ReadOneFrame().

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static int64 ReadTIFFSize

(

int

video_file

)

[static]

Reads Input File Size.

Definition at line 103 of file io_tiff.c.

Referenced by ReadTIFFImage().