output.c File Reference

Output an image and Trance support. More...

#include "contributors.h"
#include "global.h"
#include "image.h"
#include "input.h"

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Functions
void	write_out_picture (StorablePicture *p, int p_out)
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)
void	write_picture (StorablePicture *p, int p_out, int real_structure)
void	init_out_buffer ()
void	uninit_out_buffer ()
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)
void	direct_output_paff (StorablePicture *p, int p_out)
Variables
FrameStore *	out_buffer

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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.

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Function Documentation

void clear_picture

(

StorablePicture *

p

)

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

Definition at line 305 of file output.c.

References ImageParameters::bitdepth_chroma, ImageParameters::bitdepth_luma, ImageParameters::dc_pred_value_comp, 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 455 of file output.c.

References frame_store::bottom_field, dpb_combine_field_yuv(), flush_direct_output(), frame_store::frame, free_storable_picture(), frame_store::is_used, storable_picture::structure, frame_store::top_field, and write_picture().

Referenced by direct_output_paff(), and store_picture_in_dpb().

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void direct_output_paff	(	StorablePicture *	p,
		int	p_out
	)

For adaptive frame/field coding remove dangling top field from direct output frame version instead.

Parameters:

	p	Picture for output
	p_out	Output file

Definition at line 511 of file output.c.

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

Referenced by replace_top_pic_with_frame().

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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 402 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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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
	)

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 48 of file output.c.

References error(), and testEndian().

Referenced by write_out_picture().

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void init_out_buffer

(

void

)

Initialize output buffer for direct output.

Definition at line 282 of file output.c.

References alloc_frame_store().

Referenced by init_encoder().

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void uninit_out_buffer

(

void

)

Uninitialize output buffer for direct output.

Definition at line 293 of file output.c.

References free_frame_store().

Referenced by free_encoder_memory().

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void write_out_picture	(	StorablePicture *	p,
		int	p_out
	)

Writes out a storable picture.

Parameters:

	p	Picture to be written
	p_out	Output file

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 159 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 426 of file output.c.

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

Referenced by output_one_frame_from_dpb().

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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 354 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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