fmo.h File Reference

Support for Flexible Macroblock Ordering. More...

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Defines
#define	MAXSLICEGROUPIDS   8
Functions
int	FmoInit (ImageParameters *img, pic_parameter_set_rbsp_t *pps, seq_parameter_set_rbsp_t *sps)
void	FmoUninit (void)
int	FmoFinit (seq_parameter_set_rbsp_t *sps)
int	FmoMB2SliceGroup (int mb)
int	FmoGetFirstMBOfSliceGroup (int SliceGroupID)
int	FmoGetFirstMacroblockInSlice (int SliceGroup)
int	FmoGetNextMBNr (int CurrentMbNr)
int	FmoGetLastCodedMBOfSliceGroup (int SliceGroupID)
int	FmoStartPicture (void)
int	FmoEndPicture (void)
int	FmoSliceGroupCompletelyCoded (int SliceGroupID)
void	FmoSetLastMacroblockInSlice (int mb)
int	FmoGetPreviousMBNr (int CurrentMbNr)
Variables
byte *	MBAmap

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Detailed Description

Support for Flexible Macroblock Ordering.

Date:

16 June 2002

Author:

Stephan Wenger stewe@cs.tu-berlin.de

Definition in file fmo.h.

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Function Documentation

int FmoEndPicture

(

void

)

FmoEndPicture: Ends the Scattered Slices Module (called once per picture).

Input:

None

Definition at line 575 of file fmo.c.

Referenced by code_a_plane().

int FmoGetFirstMBOfSliceGroup

(

int

SliceGroupID

)

FmoGetFirstMBOfSliceGroup: Returns the MB-Nr (in scan order) of the next first MB of the Slice group, -1 if no such MB exists.

Input:

SliceGroupID: Id of SliceGroup

Definition at line 658 of file fmo.c.

References FmoMB2SliceGroup(), and ImageParameters::PicSizeInMbs.

Referenced by FmoStartPicture().

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int FmoGetLastCodedMBOfSliceGroup

(

int

SliceGroupID

)

FmoGetLastCodedMBOfSlice: Returns the MB-Nr (in scan order) of the last MB of the slice group.

Input:

SliceGroupID

Return

MB Nr in case of success (is always >= 0) -1 if the SliceGroup doesn't exist

Definition at line 684 of file fmo.c.

References FmoMB2SliceGroup(), and ImageParameters::PicSizeInMbs.

Referenced by encode_one_slice_MBAFF(), and end_macroblock().

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int FmoGetNextMBNr

(

int

CurrentMbNr

)

FmoGetNextMBBr: Returns the MB-Nr (in scan order) of the next MB in the (FMO) Slice, -1 if the SliceGroup is finished.

Input:

CurrentMbNr

Definition at line 608 of file fmo.c.

References FmoMB2SliceGroup(), and ImageParameters::PicSizeInMbs.

Referenced by encode_one_slice(), encode_one_slice_MBAFF(), and writeMBLayer().

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int FmoGetPreviousMBNr

(

int

CurrentMbNr

)

FmoGetNextMBBr: Returns the MB-Nr (in scan order) of the next MB in the (FMO) Slice, -1 if the SliceGroup is finished.

Input:

CurrentMbNr

Definition at line 633 of file fmo.c.

References FmoMB2SliceGroup().

Referenced by encode_one_slice(), encode_one_slice_MBAFF(), start_macroblock(), and writeMBLayer().

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int FmoInit	(	ImageParameters *	img,
		pic_parameter_set_rbsp_t *	pps,
		seq_parameter_set_rbsp_t *	sps
	)

FMO initialization: Generates MapUnitToSliceGroupMap and MBAmap.

Parameters:

	img	Image Parameter to be used for map generation
	pps	Picture Parameter set to be used for map generation
	sps	Sequence Parameter set to be used for map generation

Definition at line 216 of file fmo.c.

References FirstMBInSlice, FmoGenerateMapUnitToSliceGroupMap(), FmoGenerateMBAmap(), ImageParameters::PicHeightInMapUnits, ImageParameters::PicSizeInMbs, and ImageParameters::PicWidthInMbs.

Referenced by code_a_plane().

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int FmoMB2SliceGroup

(

int

mb

)

FmoMB2Slice: Returns SliceID for a given MB.

Input:

Macroblock Nr (in scan order)

Definition at line 591 of file fmo.c.

References ImageParameters::PicSizeInMbs.

Referenced by encode_one_slice_MBAFF(), end_macroblock(), FmoGetFirstMBOfSliceGroup(), FmoGetLastCodedMBOfSliceGroup(), FmoGetNextMBNr(), and FmoGetPreviousMBNr().

int FmoStartPicture

(

void

)

FmoStartPicture: initializes FMO at the begin of each new picture.

Input:

None

Definition at line 552 of file fmo.c.

References FirstMBInSlice, and FmoGetFirstMBOfSliceGroup().

Referenced by code_a_plane().

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void FmoUninit

(

void

)

Free memory if allocated by FMO functions.

Definition at line 289 of file fmo.c.

Referenced by free_encoder_memory().