nal.h File Reference

NAL related headers. More...

#include "nalucommon.h"
#include "enc_statistics.h"

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Functions
int	addCabacZeroWords (ImageParameters *p_Img, NALU_t *nalu, StatParameters *cur_stats)
void	SODBtoRBSP (Bitstream *currStream)
int	RBSPtoEBSP (byte *NaluBuffer, unsigned char *rbsp, int rbsp_size)

---

Detailed Description

NAL related headers.

nal.h

Date:

4 Agust 2008

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 nal.h.

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Function Documentation

int addCabacZeroWords	(	ImageParameters *	p_Img,
		NALU_t *	nalu,
		StatParameters *	cur_stats
	)

This function adds cabac_zero_word syntax elements at the end of the NAL unit to.

Parameters:

	p_Img	ImageParameters structure
	nalu	target NAL unit
	cur_stats	currently used statistics parameters

Returns:

number of added bytes

Definition at line 114 of file nal.c.

References nalu_t::buf, and nalu_t::len.

Referenced by terminate_slice().

int RBSPtoEBSP	(	byte *	NaluBuffer,
		unsigned char *	rbsp,
		int	rbsp_size
	)

This function add emulation_prevention_three_byte for all occurrences of the following byte sequences in the stream 0x000000 -> 0x00000300 0x000001 -> 0x00000301 0x000002 -> 0x00000302 0x000003 -> 0x00000303.

Parameters:

	NaluBuffer	pointer to target buffer
	rbsp	pointer to source buffer
	rbsp_size	Size of source

Returns:

Size target buffer after emulation prevention.

Definition at line 73 of file nal.c.

Referenced by RBSPtoNALU(), and terminate_slice().

void SODBtoRBSP

(

Bitstream *

currStream

)

Converts String Of Data Bits (SODB) to Raw Byte Sequence Packet (RBSP).

Parameters:

currStream

Bitstream which contains data bits.

Returns:

None

Note:

currStream is byte-aligned at the end of this function

Definition at line 39 of file nal.c.

References Bitstream::bits_to_go, Bitstream::byte_buf, Bitstream::byte_pos, and Bitstream::streamBuffer.

Referenced by GeneratePic_parameter_set_rbsp(), GenerateSEImessage_rbsp(), GenerateSeq_parameter_set_rbsp(), and terminate_slice().