shaka::media::Nalu Class Reference

#include <nalu_reader.h>

Public Types
enum	H264NaluType {   H264_Unspecified = 0 , H264_NonIDRSlice = 1 , H264_IDRSlice = 5 , H264_SEIMessage = 6 ,   H264_SPS = 7 , H264_PPS = 8 , H264_AUD = 9 , H264_EOSeq = 10 ,   H264_FillerData = 12 , H264_SPSExtension = 13 , H264_PrefixNALUnit = 14 , H264_SubsetSPS = 15 ,   H264_DepthParameterSet = 16 , H264_Reserved17 = 17 , H264_Reserved18 = 18 , H264_CodedSliceExtension = 20 ,   H264_Reserved22 = 22 }
enum	H265NaluType {   H265_TRAIL_N = 0 , H265_TRAIL_R = 1 , H265_TSA_N = 2 , H265_TSA_R = 3 ,   H265_STSA_N = 4 , H265_STSA_R = 5 , H265_RASL_R = 9 , H265_RSV_VCL_N10 = 10 ,   H265_RSV_VCL_R15 = 15 , H265_BLA_W_LP = 16 , H265_IDR_W_RADL = 19 , H265_IDR_N_LP = 20 ,   H265_CRA_NUT = 21 , H265_RSV_IRAP_VCL22 = 22 , H265_RSV_IRAP_VCL23 = 23 , H265_RSV_VCL31 = 31 ,   H265_VPS = 32 , H265_SPS = 33 , H265_PPS = 34 , H265_AUD = 35 ,   H265_EOS = 36 , H265_EOB = 37 , H265_FD = 38 , H265_PREFIX_SEI = 39 ,   H265_RSV_NVCL41 = 41 , H265_RSV_NVCL44 = 44 , H265_UNSPEC48 = 48 , H265_UNSPEC55 = 55 }
enum	CodecType { kH264 , kH265 }

Public Member Functions
bool	Initialize (CodecType type, const uint8_t *data, uint64_t size)
const uint8_t *	data () const
	This is the pointer to the Nalu data, pointing to the header.
uint64_t	header_size () const
	The size of the header, e.g. 1 for H.264.
uint64_t	payload_size () const
	Size of this Nalu minus header_size().
int	ref_idc () const
int	nuh_layer_id () const
int	nuh_temporal_id () const
int	type () const
bool	is_aud () const
bool	is_vcl () const
bool	is_video_slice () const
	Slice data partition NALs are not considered as slice NALs.
bool	can_start_access_unit () const

Detailed Description

For explanations of each struct and its members, see H.264 specification at http://www.itu.int/rec/T-REC-H.264.

Definition at line 27 of file nalu_reader.h.

Member Enumeration Documentation

CodecType

enum shaka::media::Nalu::CodecType

Definition at line 85 of file nalu_reader.h.

H264NaluType

enum shaka::media::Nalu::H264NaluType

Definition at line 29 of file nalu_reader.h.

H265NaluType

enum shaka::media::Nalu::H265NaluType

Definition at line 48 of file nalu_reader.h.

Member Function Documentation

can_start_access_unit()

bool shaka::media::Nalu::can_start_access_unit ( ) const

inline

Definition at line 118 of file nalu_reader.h.

data()

const uint8_t * shaka::media::Nalu::data ( ) const

inline

This is the pointer to the Nalu data, pointing to the header.

Definition at line 97 of file nalu_reader.h.

header_size()

uint64_t shaka::media::Nalu::header_size ( ) const

inline

The size of the header, e.g. 1 for H.264.

Definition at line 100 of file nalu_reader.h.

Initialize()

bool shaka::media::Nalu::Initialize	(	CodecType	type,
		const uint8_t *	data,
		uint64_t	size
	)

Definition at line 79 of file nalu_reader.cc.

is_aud()

bool shaka::media::Nalu::is_aud ( ) const

inline

Definition at line 114 of file nalu_reader.h.

is_vcl()

bool shaka::media::Nalu::is_vcl ( ) const

inline

Definition at line 115 of file nalu_reader.h.

is_video_slice()

bool shaka::media::Nalu::is_video_slice ( ) const

inline

Slice data partition NALs are not considered as slice NALs.

Definition at line 117 of file nalu_reader.h.

nuh_layer_id()

int shaka::media::Nalu::nuh_layer_id ( ) const

inline

Definition at line 108 of file nalu_reader.h.

nuh_temporal_id()

int shaka::media::Nalu::nuh_temporal_id ( ) const

inline

Definition at line 109 of file nalu_reader.h.

payload_size()

uint64_t shaka::media::Nalu::payload_size ( ) const

inline

Size of this Nalu minus header_size().

Definition at line 102 of file nalu_reader.h.

ref_idc()

int shaka::media::Nalu::ref_idc ( ) const

inline

Definition at line 105 of file nalu_reader.h.

type()

int shaka::media::Nalu::type ( ) const

inline

H264NaluType and H265NaluType enums may be used to compare against the return value.

Definition at line 113 of file nalu_reader.h.

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The documentation for this class was generated from the following files:

• packager/media/codecs/nalu_reader.h
• packager/media/codecs/nalu_reader.cc