input.h File Reference

Input related definitions. More...

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Functions
int	testEndian (void)
void	initInput (ImageParameters *p_Img, FrameFormat *source, FrameFormat *output)
void	AllocateFrameMemory (ImageParameters *p_Img, InputParameters *p_Inp, FrameFormat *source)
void	DeleteFrameMemory (ImageParameters *p_Img)
int	ReadOneFrame (ImageParameters *p_Img, InputParameters *p_Inp, VideoDataFile *input_file, int FrameNoInFile, int HeaderSize, FrameFormat *source, FrameFormat *output, imgpel **pImage[3])
void	PaddAutoCropBorders (FrameFormat output, int img_size_x, int img_size_y, int img_size_x_cr, int img_size_y_cr, imgpel **pImage[3])

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Detailed Description

Input related definitions.

Author:

Definition in file input.h.

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Function Documentation

void AllocateFrameMemory	(	ImageParameters *	p_Img,
		InputParameters *	p_Inp,
		FrameFormat *	source
	)

Create Frame Memory buffer.

Definition at line 545 of file input.c.

References inp_par_enc::input_file1, and no_mem_exit().

Referenced by init_img().

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void DeleteFrameMemory

(

ImageParameters *

p_Img

)

Delete Frame Memory buffer.

Definition at line 563 of file input.c.

Referenced by free_img().

void initInput	(	ImageParameters *	p_Img,
		FrameFormat *	source,
		FrameFormat *	output
	)

checks if the System is big- or little-endian

Returns:

0, little-endian (e.g. Intel architectures) 1, big-endian (e.g. SPARC, MIPS, PowerPC)

Definition at line 41 of file input.c.

References buf2img_basic(), buf2img_bitshift(), buf2img_endian(), and testEndian().

Referenced by init_img().

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void PaddAutoCropBorders	(	FrameFormat	output,
		int	img_size_x,
		int	img_size_y,
		int	img_size_x_cr,
		int	img_size_y_cr,
		imgpel **	pImage[3]
	)

Padding of automatically added border for picture sizes that are not multiples of macroblock/macroblock pair size.

Parameters:

	output	Image dimensions
	img_size_x	coded image horizontal size (luma)
	img_size_y	code image vertical size (luma)
	img_size_x_cr	coded image horizontal size (chroma)
	img_size_y_cr	code image vertical size (chroma)
	pImage	image planes

Definition at line 679 of file input.c.

References YUV400.

Referenced by encode_one_frame().

int ReadOneFrame	(	ImageParameters *	p_Img,
		InputParameters *	p_Inp,
		VideoDataFile *	input_file,
		int	FrameNoInFile,
		int	HeaderSize,
		FrameFormat *	source,
		FrameFormat *	output,
		imgpel **	pImage[3]
	)

Reads one new frame from file.

Parameters:

	p_Img	image encoding parameters for current picture
	p_Inp	Input configuration parameters
	input_file	structure containing information (filename, format) about the source file
	FrameNoInFile	Frame number in the source file
	HeaderSize	Number of bytes in the source file to be skipped
	source	source file (on disk) information
	output	output file (for encoding) information
	pImage	Image planes

Definition at line 594 of file input.c.

References deinterleave(), inp_par_enc::grayscale, ReadFrameConcatenated(), ReadFrameSeparate(), ReadTIFFImage(), YUV400, and YUV444.

Referenced by encode_one_frame().

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int testEndian

(

void

)

checks if the System is big- or little-endian

Returns:

0, little-endian (e.g. Intel architectures) 1, big-endian (e.g. SPARC, MIPS, PowerPC)

Definition at line 64 of file input.c.

Referenced by buf2img_bitshift(), img2buf(), and initInput().