nalu.c File Reference

Common NALU support functions. More...

#include "global.h"
#include "nalu.h"
#include "nal.h"

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Functions
int	RBSPtoNALU (unsigned char *rbsp, NALU_t *nalu, int rbsp_size, int nal_unit_type, int nal_reference_idc, int min_num_bytes, int UseAnnexbLongStartcode)
int	Write_AUD_NALU (void)

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Detailed Description

Common NALU support functions.

Author:

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

• Stephan Wenger <stewe@cs.tu-berlin.de>

Definition in file nalu.c.

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Function Documentation

int RBSPtoNALU	(	unsigned char *	rbsp,
		NALU_t *	nalu,
		int	rbsp_size,
		int	nal_unit_type,
		int	nal_reference_idc,
		int	min_num_bytes,
		int	UseAnnexbLongStartcode
	)

Converts an RBSP to a NALU.

Parameters:

	rbsp	byte buffer with the rbsp
	nalu	nalu structure to be filled
	rbsp_size	size of the rbsp in bytes
	nal_unit_type	as in JVT doc
	nal_reference_idc	as in JVT doc
	min_num_bytes	some incomprehensible CABAC stuff
	UseAnnexbLongStartcode	when 1 and when using AnnexB bytestreams, then use a long startcode prefix

Returns:

length of the NALU in bytes

Definition at line 44 of file nalu.c.

References NALU_t::buf, NALU_t::forbidden_bit, NALU_t::len, NALU_t::nal_reference_idc, NALU_t::nal_unit_type, RBSPtoEBSP(), and NALU_t::startcodeprefix_len.

Referenced by GeneratePic_parameter_set_NALU(), GenerateSEImessage_NALU(), GenerateSeq_parameter_set_NALU(), and Write_AUD_NALU().

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int Write_AUD_NALU

(

void

)

write AUD NALU

Hides the write function in Annex B or RTP.

Definition at line 72 of file nalu.c.

References AllocNALU(), FreeNALU(), ImageParameters::primary_pic_type, RBSPtoNALU(), and ImageParameters::type.

Referenced by rewrite_paramsets(), start_sequence(), and write_non_vcl_nalu().

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