output.c File Reference

Output an image and Trance support. More...

#include "contributors.h"
#include "global.h"
#include "mbuffer.h"
#include "image.h"
#include "memalloc.h"
#include "sei.h"

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Functions

static void write_out_picture (StorablePicture *p, int p_out)

static void img2buf_byte (imgpel **imgX, unsigned char *buf, int size_x, int size_y, int symbol_size_in_bytes, int crop_left, int crop_right, int crop_top, int crop_bottom)

static void img2buf_normal (imgpel **imgX, unsigned char *buf, int size_x, int size_y, int symbol_size_in_bytes, int crop_left, int crop_right, int crop_top, int crop_bottom)

static void img2buf_endian (imgpel **imgX, unsigned char *buf, int size_x, int size_y, int symbol_size_in_bytes, int crop_left, int crop_right, int crop_top, int crop_bottom)

int testEndian (void)

static void initOutput (int symbol_size_in_bytes)

void write_picture (StorablePicture *p, int p_out, int real_structure)

void init_out_buffer (void)

void uninit_out_buffer (void)

void clear_picture (StorablePicture *p)

void write_unpaired_field (FrameStore *fs, int p_out)

void flush_direct_output (int p_out)

void write_stored_frame (FrameStore *fs, int p_out)

void direct_output (StorablePicture *p, int p_out)

Variables

FrameStore * out_buffer

StorablePicture * pending_output = NULL

int pending_output_state = FRAME

int recovery_flag = 0

int non_conforming_stream

static void(* img2buf )(imgpel **imgX, unsigned char *buf, int size_x, int size_y, int symbol_size_in_bytes, int crop_left, int crop_right, int crop_top, int crop_bottom)

Detailed Description

Output an image and Trance support.

Author:

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

Karsten Suehring <suehring@hhi.de>

Definition in file output.c.

Function Documentation

void clear_picture ( StorablePicture * p )

Initialize picture memory with (Y:0,U:128,V:128).

Definition at line 637 of file output.c.

References img, storable_picture::imgUV, storable_picture::imgY, storable_picture::size_x, storable_picture::size_x_cr, storable_picture::size_y, and storable_picture::size_y_cr.

Referenced by write_unpaired_field().

void direct_output	(	StorablePicture *	p,
		int	p_out
	)

Directly output a picture without storing it in the DPB. Fields are buffered before they are written to the file.

Parameters:

	p	Picture for output
	p_out	Output file

Definition at line 773 of file output.c.

References frame_store::bottom_field, calculate_frame_no(), dpb_combine_field_yuv(), find_snr(), flush_direct_output(), frame_store::frame, free_storable_picture(), frame_store::is_used, p_ref, params, snr, storable_picture::structure, frame_store::top_field, and write_picture().

Referenced by store_picture_in_dpb().

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void flush_direct_output ( int p_out )

Write out unpaired fields from output buffer.

Parameters:

p_out

Output file

Definition at line 718 of file output.c.

References frame_store::bottom_field, frame_store::frame, free_storable_picture(), frame_store::is_used, frame_store::top_field, and write_unpaired_field().

Referenced by direct_output(), and write_stored_frame().

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static void img2buf_byte	(	imgpel **	imgX,
		unsigned char *	buf,
		int	size_x,
		int	size_y,
		int	symbol_size_in_bytes,
		int	crop_left,
		int	crop_right,
		int	crop_top,
		int	crop_bottom
	)			`[static]`

Convert image plane to temporary buffer for file writing.

Parameters:

	imgX	Pointer to image plane
	buf	Buffer for file output
	size_x	horizontal size
	size_y	vertical size
	symbol_size_in_bytes	number of bytes used per pel
	crop_left	pixels to crop from left
	crop_right	pixels to crop from right
	crop_top	pixels to crop from top
	crop_bottom	pixels to crop from bottom

Definition at line 181 of file output.c.

Referenced by initOutput().

static void img2buf_endian	(	imgpel **	imgX,
		unsigned char *	buf,
		int	size_x,
		int	size_y,
		int	symbol_size_in_bytes,
		int	crop_left,
		int	crop_right,
		int	crop_top,
		int	crop_bottom
	)			`[static]`

Convert image plane to temporary buffer for file writing.

Parameters:

	imgX	Pointer to image plane
	buf	Buffer for file output
	size_x	horizontal size
	size_y	vertical size
	symbol_size_in_bytes	number of bytes used per pel
	crop_left	pixels to crop from left
	crop_right	pixels to crop from right
	crop_top	pixels to crop from top
	crop_bottom	pixels to crop from bottom

Definition at line 221 of file output.c.

References error().

Referenced by initOutput().

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static void img2buf_normal	(	imgpel **	imgX,
		unsigned char *	buf,
		int	size_x,
		int	size_y,
		int	symbol_size_in_bytes,
		int	crop_left,
		int	crop_right,
		int	crop_top,
		int	crop_bottom
	)			`[static]`

Convert image plane to temporary buffer for file writing.

Parameters:

	imgX	Pointer to image plane
	buf	Buffer for file output
	size_x	horizontal size
	size_y	vertical size
	symbol_size_in_bytes	number of bytes used per pel
	crop_left	pixels to crop from left
	crop_right	pixels to crop from right
	crop_top	pixels to crop from top
	crop_bottom	pixels to crop from bottom

Definition at line 106 of file output.c.

Referenced by initOutput().

void init_out_buffer ( void )

Initialize output buffer for direct output.

Definition at line 603 of file output.c.

References alloc_frame_store(), storable_picture::imgUV, storable_picture::imgY, and no_mem_exit().

Referenced by main().

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static void initOutput ( int symbol_size_in_bytes ) [static]

selects appropriate output function given system arch. and data

Returns:

Definition at line 67 of file output.c.

References img2buf_byte(), img2buf_endian(), img2buf_normal(), and testEndian().

Referenced by write_out_picture().

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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 46 of file output.c.

Referenced by buf2img(), and initOutput().

void uninit_out_buffer ( void )

Uninitialize output buffer for direct output.

Definition at line 621 of file output.c.

References free_frame_store().

Referenced by main().

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static void write_out_picture	(	StorablePicture *	p,
		int	p_out
	)			`[static]`

Writes out a storable picture.

Parameters:

	p	Picture to be written
	p_out	Output file

Definition at line 455 of file output.c.

Referenced by write_picture().

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void write_picture	(	StorablePicture *	p,
		int	p_out,
		int	real_structure
	)

Writes out a storable picture without doing any output modifications.

Parameters:

	p	Picture to be written
	p_out	Output file
	real_structure	real picture structure

Definition at line 437 of file output.c.

References write_out_picture().

Referenced by direct_output(), write_stored_frame(), and write_unpaired_field().

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void write_stored_frame	(	FrameStore *	fs,
		int	p_out
	)

Write a frame (from FrameStore).

Parameters:

	fs	FrameStore containing the frame
	p_out	Output file

Definition at line 742 of file output.c.

References flush_direct_output(), frame_store::frame, frame_store::is_output, frame_store::is_used, frame_store::recovery_frame, write_picture(), and write_unpaired_field().

Referenced by output_one_frame_from_dpb(), and write_lost_non_ref_pic().

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void write_unpaired_field	(	FrameStore *	fs,
		int	p_out
	)

Write out not paired direct output fields. A second empty field is generated and combined into the frame buffer.

Parameters:

	fs	FrameStore that contains a single field
	p_out	Output file

Definition at line 670 of file output.c.

References alloc_storable_picture(), frame_store::bottom_field, storable_picture::chroma_format_idc, clear_picture(), dpb_combine_field_yuv(), frame_store::frame, storable_picture::frame_cropping_flag, storable_picture::frame_cropping_rect_bottom_offset, storable_picture::frame_cropping_rect_left_offset, storable_picture::frame_cropping_rect_right_offset, storable_picture::frame_cropping_rect_top_offset, frame_store::is_used, storable_picture::size_x, storable_picture::size_x_cr, storable_picture::size_y, storable_picture::size_y_cr, frame_store::top_field, and write_picture().

Referenced by flush_direct_output(), and write_stored_frame().

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Functions
static void	write_out_picture (StorablePicture *p, int p_out)
static void	img2buf_byte (imgpel *imgX, unsigned char buf, int size_x, int size_y, int symbol_size_in_bytes, int crop_left, int crop_right, int crop_top, int crop_bottom)
static void	img2buf_normal (imgpel *imgX, unsigned char buf, int size_x, int size_y, int symbol_size_in_bytes, int crop_left, int crop_right, int crop_top, int crop_bottom)
static void	img2buf_endian (imgpel *imgX, unsigned char buf, int size_x, int size_y, int symbol_size_in_bytes, int crop_left, int crop_right, int crop_top, int crop_bottom)
int	testEndian (void)
static void	initOutput (int symbol_size_in_bytes)
void	write_picture (StorablePicture *p, int p_out, int real_structure)
void	init_out_buffer (void)
void	uninit_out_buffer (void)
void	clear_picture (StorablePicture *p)
void	write_unpaired_field (FrameStore *fs, int p_out)
void	flush_direct_output (int p_out)
void	write_stored_frame (FrameStore *fs, int p_out)
void	direct_output (StorablePicture *p, int p_out)
Variables
FrameStore *	out_buffer
StorablePicture *	pending_output = NULL
int	pending_output_state = FRAME
int	recovery_flag = 0
int	non_conforming_stream
static void(*	img2buf )(imgpel *imgX, unsigned char buf, int size_x, int size_y, int symbol_size_in_bytes, int crop_left, int crop_right, int crop_top, int crop_bottom)