#include <libmythtv/mpeg/AVCParser.h>

Inheritance diagram for AVCParser:

Collaboration diagram for AVCParser:

Public Types
enum	NAL_unit_type : std::int8_t { UNKOWN = -1, SLICE = 1, SLICE_DPA = 2, SLICE_DPB = 3, SLICE_DPC = 4, SLICE_IDR = 5, SEI = 6, SPS = 7, PPS = 8, AU_DELIMITER = 9, END_SEQUENCE = 10, END_STREAM = 11, FILLER_DATA = 12, SPS_EXT = 13, NALU_prefix = 14, SPS_subset = 15, AUXILIARY_SLICE = 19, SLICE_EXTENSION = 20 }

enum	SEI_type : std::uint8_t { SEI_TYPE_PIC_TIMING = 1, SEI_FILLER_PAYLOAD = 3, SEI_TYPE_USER_DATA_UNREGISTERED = 5, SEI_TYPE_RECOVERY_POINT = 6 }

Public Types inherited from H2645Parser
enum	field_type : std::uint8_t { FRAME = 'F', FIELD_TOP = 'T', FIELD_BOTTOM = 'B' }

enum	NAL_unit_type : std::int8_t { UNKNOWN = -1 }

enum	SLICE_type : std::uint8_t { SLICE_P = 0, SLICE_B = 1, SLICE_I = 2, SLICE_SP = 3, SLICE_SI = 4, SLICE_P_a = 5, SLICE_B_a = 6, SLICE_I_a = 7, SLICE_SP_a = 8, SLICE_SI_a = 9, SLICE_UNDEF = 10 }

Public Member Functions
field_type	getFieldType (void) const override

	AVCParser (void)

	AVCParser (const AVCParser &rhs)

	~AVCParser (void) override

uint32_t	addBytes (const uint8_t *bytes, uint32_t byte_count, uint64_t stream_offset) override

void	Reset (void) override

QString	NAL_type_str (int8_t type) override

void	use_I_forKeyframes (bool val)

bool	using_I_forKeyframes (void) const

void	parse_SPS (uint8_t *sps, uint32_t sps_size, bool &interlaced, int32_t &max_ref_frames)

void	reset_SPS (void)

bool	seen_SPS (void) const

bool	found_AU (void) const

uint8_t	lastNALtype (void) const

uint	getRefFrames (void) const

uint	pictureWidthCropped (void) const override

uint	pictureHeightCropped (void) const override

double	frameRate (void) const

MythAVRational	getFrameRate () const override

void	set_AU_pending (void)

Public Member Functions inherited from H2645Parser
	H2645Parser (void)

	H2645Parser (const H2645Parser &rhs)

virtual	~H2645Parser (void)

bool	stateChanged (void) const

bool	onFrameStart (void) const

bool	onKeyFrameStart (void) const

uint	pictureWidth (void) const

uint	pictureHeight (void) const

uint	aspectRatio (void) const
	Computes aspect ratio from picture size and sample aspect ratio. More...

uint64_t	frameAUstreamOffset (void) const

uint64_t	keyframeAUstreamOffset (void) const

uint64_t	SPSstreamOffset (void) const

uint32_t	GetTimeScale (void) const

uint32_t	GetUnitsInTick (void) const

SCAN_t	GetScanType (void) const

Static Public Member Functions
static bool	isKeySlice (uint slice_type)

static bool	NALisSlice (int8_t nal_type)

Protected Member Functions
bool	new_AU (void)

void	processRBSP (bool rbsp_complete)

Protected Member Functions inherited from H2645Parser
void	resetRBSP (void)

bool	fillRBSP (const uint8_t *byteP, uint32_t byte_count, bool found_start_code)

void	vui_parameters (BitReader &br, bool hevc)

Private Member Functions
bool	decode_Header (BitReader &br)

void	decode_SPS (BitReader &br)

void	decode_PPS (BitReader &br)

void	decode_SEI (BitReader &br)

Private Attributes
int	m_deltaPicOrderCntBottom {0}

std::array< int, 2 >	m_deltaPicOrderCnt {0}

int	m_frameNum {-1}

int	m_picOrderCntLsb {0}

int	m_picParameterSetId {-1}

int	m_prevDeltaPicOrderCntBottom {0}

std::array< int, 2 >	m_prevDeltaPicOrderCnt {0}

int	m_prevFrameNum {-1}

int	m_prevPicOrderCntLsb {0}

int	m_prevPicParameterSetId {-1}

uint	m_idrPicId {65536}

uint	m_log2MaxFrameNum {0}

uint	m_log2MaxPicOrderCntLsb {0}

uint	m_numRefFrames {0}

uint	m_prevIdrPicId {65536}

uint	m_redundantPicCnt {0}

uint	m_seqParameterSetId {0}

uint	m_sliceType {SLICE_UNDEF}

int8_t	m_bottomFieldFlag {-1}

int8_t	m_fieldPicFlag {-1}

int8_t	m_frameMbsOnlyFlag {-1}

int8_t	m_nalUnitType {UNKNOWN}

int8_t	m_picOrderPresentFlag {-1}

int8_t	m_prevBottomFieldFlag {-1}

int8_t	m_prevFieldPicFlag {-1}

int8_t	m_prevNalUnitType {UNKNOWN}

int8_t	m_redundantPicCntPresentFlag {0}

uint8_t	m_deltaPicOrderAlwaysZeroFlag {0}

uint8_t	m_nalRefIdc {111}

uint8_t	m_picOrderCntType {0}

uint8_t	m_prevNALRefIdc {111}

uint8_t	m_prevPicOrderCntType {0}

bool	m_auContainsKeyframeMessage {false}

bool	m_iIsKeyframe {true}

Additional Inherited Members
Static Public Attributes inherited from H2645Parser
static constexpr uint16_t	kMaxSliceHeaderSize { 256 }

Protected Attributes inherited from H2645Parser
uint64_t	m_framecnt {0}

uint64_t	m_keyframecnt {0}

uint64_t	m_totalframecnt {0}

uint64_t	m_totalkeyframecnt {0}

uint64_t	m_auOffset {0}

uint64_t	m_frameStartOffset {0}

uint64_t	m_keyframeStartOffset {0}

uint64_t	m_pktOffset {0}

uint64_t	m_spsOffset {0}

uint32_t	m_consecutiveZeros {0}

uint32_t	m_rbspBufferSize {188 * 2}

uint32_t	m_rbspIndex {0}

uint32_t	m_syncAccumulator {0xffffffff}

uint32_t	m_timeScale {0}

uint32_t	m_unitsInTick {0}

SCAN_t	m_scanType {SCAN_t::UNKNOWN_SCAN}

uint	m_frameCropBottomOffset {0}

uint	m_frameCropLeftOffset {0}

uint	m_frameCropRightOffset {0}

uint	m_frameCropTopOffset {0}

uint	m_picHeight {0}

uint	m_picWidth {0}

uint	m_sarHeight {0}

uint	m_sarWidth {0}

uint8_t *	m_rbspBuffer {nullptr}

uint8_t	m_aspectRatioIdc {0}

int8_t	m_chromaFormatIdc {1}

bool	m_auPending {false}

bool	m_fixedRate {false}

bool	m_haveUnfinishedNAL {false}

bool	m_isKeyframe {false}

bool	m_onAU {false}

bool	m_onFrame {false}

bool	m_onKeyFrame {false}

bool	m_seenSPS {false}

bool	m_separateColourPlaneFlag {false}

bool	m_stateChanged {false}

Static Protected Attributes inherited from H2645Parser
static constexpr uint8_t	kExtendedSar { 255 }

Detailed Description

Definition at line 30 of file AVCParser.h.

Member Enumeration Documentation

◆ NAL_unit_type

enum AVCParser::NAL_unit_type : std::int8_t

Enumerator
UNKOWN
SLICE
SLICE_DPA
SLICE_DPB
SLICE_DPC
SLICE_IDR
SEI
SPS
PPS
AU_DELIMITER
END_SEQUENCE
END_STREAM
FILLER_DATA
SPS_EXT
NALU_prefix
SPS_subset
AUXILIARY_SLICE
SLICE_EXTENSION

Definition at line 54 of file AVCParser.h.

◆ SEI_type

enum AVCParser::SEI_type : std::uint8_t

Enumerator
SEI_TYPE_PIC_TIMING
SEI_FILLER_PAYLOAD
SEI_TYPE_USER_DATA_UNREGISTERED
SEI_TYPE_RECOVERY_POINT

Definition at line 75 of file AVCParser.h.

Constructor & Destructor Documentation

◆ AVCParser() [1/2]

AVCParser::AVCParser ( void )

inline

Definition at line 91 of file AVCParser.h.

◆ AVCParser() [2/2]

AVCParser::AVCParser ( const AVCParser & rhs )

◆ ~AVCParser()

AVCParser::~AVCParser ( void )

inlineoverride

Definition at line 93 of file AVCParser.h.

Member Function Documentation

◆ getFieldType()

H2645Parser::field_type AVCParser::getFieldType ( void ) const

overridevirtual

Implements H2645Parser.

Definition at line 1050 of file AVCParser.cpp.

Referenced by AvFormatDecoder::H264PreProcessPkt().

◆ addBytes()

uint32_t AVCParser::addBytes	(	const uint8_t *	bytes,
		uint32_t	byte_count,
		uint64_t	stream_offset
	)

overridevirtual

Implements H2645Parser.

Definition at line 285 of file AVCParser.cpp.

Referenced by AvFormatDecoder::H264PreProcessPkt().

◆ Reset()

void AVCParser::Reset ( void )

overridevirtual

Reimplemented from H2645Parser.

Definition at line 88 of file AVCParser.cpp.

Referenced by AvFormatDecoder::autoSelectVideoTrack(), and AvFormatDecoder::CloseContext().

◆ NAL_type_str()

QString AVCParser::NAL_type_str ( int8_t type )

overridevirtual

Implements H2645Parser.

Definition at line 130 of file AVCParser.cpp.

◆ isKeySlice()

static bool AVCParser::isKeySlice ( uint slice_type )

inlinestatic

Definition at line 103 of file AVCParser.h.

Referenced by decode_Header().

◆ NALisSlice()

static bool AVCParser::NALisSlice ( int8_t nal_type )

inlinestatic

Definition at line 111 of file AVCParser.h.

Referenced by addBytes(), and processRBSP().

◆ use_I_forKeyframes()

void AVCParser::use_I_forKeyframes ( bool val )

inline

Definition at line 118 of file AVCParser.h.

Referenced by AvFormatDecoder::SetIdrOnlyKeyframes().

◆ using_I_forKeyframes()

bool AVCParser::using_I_forKeyframes ( void ) const

inline

Definition at line 119 of file AVCParser.h.

◆ parse_SPS()

void AVCParser::parse_SPS	(	uint8_t *	sps,
		uint32_t	sps_size,
		bool &	interlaced,
		int32_t &	max_ref_frames
	)

Definition at line 893 of file AVCParser.cpp.

◆ reset_SPS()

void AVCParser::reset_SPS ( void )

inline

Definition at line 124 of file AVCParser.h.

◆ seen_SPS()

bool AVCParser::seen_SPS ( void ) const

inline

Definition at line 125 of file AVCParser.h.

◆ found_AU()

bool AVCParser::found_AU ( void ) const

inline

Definition at line 127 of file AVCParser.h.

◆ lastNALtype()

uint8_t AVCParser::lastNALtype ( void ) const

inline

Definition at line 129 of file AVCParser.h.

◆ getRefFrames()

uint AVCParser::getRefFrames ( void ) const

inline

Definition at line 131 of file AVCParser.h.

Referenced by AvFormatDecoder::H264PreProcessPkt().

◆ pictureWidthCropped()

uint AVCParser::pictureWidthCropped ( void ) const

overridevirtual

Implements H2645Parser.

Definition at line 1027 of file AVCParser.cpp.

Referenced by AvFormatDecoder::H264PreProcessPkt().

◆ pictureHeightCropped()

uint AVCParser::pictureHeightCropped ( void ) const

overridevirtual

Implements H2645Parser.

Definition at line 1039 of file AVCParser.cpp.

Referenced by AvFormatDecoder::H264PreProcessPkt().

◆ frameRate()

double AVCParser::frameRate ( void ) const

Definition at line 1069 of file AVCParser.cpp.

Referenced by AvFormatDecoder::H264PreProcessPkt().

◆ getFrameRate()

MythAVRational AVCParser::getFrameRate ( ) const

overridevirtual

Implements H2645Parser.

Definition at line 1077 of file AVCParser.cpp.

◆ set_AU_pending()

void AVCParser::set_AU_pending ( void )

inline

Definition at line 139 of file AVCParser.h.

Referenced by addBytes(), and processRBSP().

◆ new_AU()

bool AVCParser::new_AU ( void )

protected

Definition at line 166 of file AVCParser.cpp.

Referenced by processRBSP().

◆ processRBSP()

void AVCParser::processRBSP ( bool rbsp_complete )

protected

Definition at line 416 of file AVCParser.cpp.

Referenced by addBytes().

◆ decode_Header()

bool AVCParser::decode_Header ( BitReader & br )

private

Definition at line 495 of file AVCParser.cpp.

Referenced by processRBSP().

◆ decode_SPS()

void AVCParser::decode_SPS ( BitReader & br )

private

Definition at line 695 of file AVCParser.cpp.

Referenced by parse_SPS(), and processRBSP().

◆ decode_PPS()

void AVCParser::decode_PPS ( BitReader & br )

private

Definition at line 902 of file AVCParser.cpp.

Referenced by processRBSP().

◆ decode_SEI()

void AVCParser::decode_SEI ( BitReader & br )

private

Definition at line 980 of file AVCParser.cpp.

Referenced by processRBSP().

Member Data Documentation

◆ m_deltaPicOrderCntBottom

int AVCParser::m_deltaPicOrderCntBottom {0}

private

Definition at line 160 of file AVCParser.h.

Referenced by decode_Header(), new_AU(), and Reset().

◆ m_deltaPicOrderCnt

std::array<int,2> AVCParser::m_deltaPicOrderCnt {0}

private

Definition at line 161 of file AVCParser.h.

Referenced by decode_Header(), new_AU(), and Reset().

◆ m_frameNum

int AVCParser::m_frameNum {-1}

private

Definition at line 162 of file AVCParser.h.

Referenced by decode_Header(), new_AU(), and Reset().

◆ m_picOrderCntLsb

int AVCParser::m_picOrderCntLsb {0}

private

Definition at line 163 of file AVCParser.h.

Referenced by decode_Header(), new_AU(), and Reset().

◆ m_picParameterSetId

int AVCParser::m_picParameterSetId {-1}

private

Definition at line 164 of file AVCParser.h.

Referenced by decode_Header(), decode_PPS(), new_AU(), and Reset().

◆ m_prevDeltaPicOrderCntBottom

int AVCParser::m_prevDeltaPicOrderCntBottom {0}

private

Definition at line 165 of file AVCParser.h.

Referenced by new_AU(), and Reset().

◆ m_prevDeltaPicOrderCnt

std::array<int,2> AVCParser::m_prevDeltaPicOrderCnt {0}

private

Definition at line 166 of file AVCParser.h.

Referenced by new_AU(), and Reset().

◆ m_prevFrameNum

int AVCParser::m_prevFrameNum {-1}

private

Definition at line 167 of file AVCParser.h.

Referenced by new_AU(), and Reset().

◆ m_prevPicOrderCntLsb

int AVCParser::m_prevPicOrderCntLsb {0}

private

Definition at line 168 of file AVCParser.h.

Referenced by new_AU(), and Reset().

◆ m_prevPicParameterSetId

int AVCParser::m_prevPicParameterSetId {-1}

private

Definition at line 169 of file AVCParser.h.

Referenced by new_AU(), and Reset().

◆ m_idrPicId

uint AVCParser::m_idrPicId {65536}

private

Definition at line 171 of file AVCParser.h.

Referenced by decode_Header(), new_AU(), and Reset().

◆ m_log2MaxFrameNum

uint AVCParser::m_log2MaxFrameNum {0}

private

Definition at line 172 of file AVCParser.h.

Referenced by decode_Header(), decode_SPS(), and Reset().

◆ m_log2MaxPicOrderCntLsb

uint AVCParser::m_log2MaxPicOrderCntLsb {0}

private

Definition at line 173 of file AVCParser.h.

Referenced by decode_Header(), decode_SPS(), and Reset().

◆ m_numRefFrames

uint AVCParser::m_numRefFrames {0}

private

Definition at line 174 of file AVCParser.h.

Referenced by decode_SPS(), NALisSlice(), parse_SPS(), and Reset().

◆ m_prevIdrPicId

uint AVCParser::m_prevIdrPicId {65536}

private

Definition at line 175 of file AVCParser.h.

Referenced by new_AU(), and Reset().

◆ m_redundantPicCnt

uint AVCParser::m_redundantPicCnt {0}

private

Definition at line 176 of file AVCParser.h.

Referenced by decode_Header(), and Reset().

◆ m_seqParameterSetId

uint AVCParser::m_seqParameterSetId {0}

private

Definition at line 177 of file AVCParser.h.

Referenced by decode_PPS(), and Reset().

◆ m_sliceType

uint AVCParser::m_sliceType {SLICE_UNDEF}

private

Definition at line 178 of file AVCParser.h.

Referenced by decode_Header(), and Reset().

◆ m_bottomFieldFlag

int8_t AVCParser::m_bottomFieldFlag {-1}

private

Definition at line 180 of file AVCParser.h.

Referenced by decode_Header(), getFieldType(), new_AU(), and Reset().

◆ m_fieldPicFlag

int8_t AVCParser::m_fieldPicFlag {-1}

private

Definition at line 181 of file AVCParser.h.

Referenced by decode_Header(), new_AU(), and Reset().

◆ m_frameMbsOnlyFlag

int8_t AVCParser::m_frameMbsOnlyFlag {-1}

private

Definition at line 182 of file AVCParser.h.

Referenced by decode_Header(), decode_SPS(), parse_SPS(), pictureHeightCropped(), and Reset().

◆ m_nalUnitType

int8_t AVCParser::m_nalUnitType {UNKNOWN}

private

Definition at line 183 of file AVCParser.h.

Referenced by addBytes(), decode_Header(), new_AU(), processRBSP(), and Reset().

◆ m_picOrderPresentFlag

int8_t AVCParser::m_picOrderPresentFlag {-1}

private

Definition at line 184 of file AVCParser.h.

Referenced by decode_Header(), decode_PPS(), and Reset().

◆ m_prevBottomFieldFlag

int8_t AVCParser::m_prevBottomFieldFlag {-1}

private

Definition at line 185 of file AVCParser.h.

Referenced by new_AU(), and Reset().

◆ m_prevFieldPicFlag

int8_t AVCParser::m_prevFieldPicFlag {-1}

private

Definition at line 186 of file AVCParser.h.

Referenced by new_AU(), and Reset().

◆ m_prevNalUnitType

int8_t AVCParser::m_prevNalUnitType {UNKNOWN}

private

Definition at line 187 of file AVCParser.h.

Referenced by new_AU(), and Reset().

◆ m_redundantPicCntPresentFlag

int8_t AVCParser::m_redundantPicCntPresentFlag {0}

private

Definition at line 188 of file AVCParser.h.

Referenced by decode_Header(), decode_PPS(), and Reset().

◆ m_deltaPicOrderAlwaysZeroFlag

uint8_t AVCParser::m_deltaPicOrderAlwaysZeroFlag {0}

private

Definition at line 190 of file AVCParser.h.

Referenced by decode_Header(), decode_SPS(), and Reset().

◆ m_nalRefIdc

uint8_t AVCParser::m_nalRefIdc {111}

private

Definition at line 191 of file AVCParser.h.

Referenced by addBytes(), new_AU(), and Reset().

◆ m_picOrderCntType

uint8_t AVCParser::m_picOrderCntType {0}

private

Definition at line 192 of file AVCParser.h.

Referenced by decode_Header(), decode_SPS(), new_AU(), and Reset().

◆ m_prevNALRefIdc

uint8_t AVCParser::m_prevNALRefIdc {111}

private

Definition at line 193 of file AVCParser.h.

Referenced by new_AU(), and Reset().

◆ m_prevPicOrderCntType

uint8_t AVCParser::m_prevPicOrderCntType {0}

private

Definition at line 194 of file AVCParser.h.

Referenced by new_AU(), and Reset().

◆ m_auContainsKeyframeMessage

bool AVCParser::m_auContainsKeyframeMessage {false}

private

Definition at line 196 of file AVCParser.h.

Referenced by decode_SEI(), and processRBSP().

◆ m_iIsKeyframe

bool AVCParser::m_iIsKeyframe {true}

private

Definition at line 197 of file AVCParser.h.

Referenced by decode_Header().

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

mythtv/libs/libmythtv/mpeg/AVCParser.h
mythtv/libs/libmythtv/mpeg/AVCParser.cpp

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ NAL_unit_type

◆ SEI_type

Constructor & Destructor Documentation

◆ AVCParser() [1/2]

◆ AVCParser() [2/2]

◆ ~AVCParser()

Member Function Documentation

◆ getFieldType()

◆ addBytes()

◆ Reset()

◆ NAL_type_str()

◆ isKeySlice()

◆ NALisSlice()

◆ use_I_forKeyframes()

◆ using_I_forKeyframes()

◆ parse_SPS()

◆ reset_SPS()

◆ seen_SPS()

◆ found_AU()

◆ lastNALtype()

◆ getRefFrames()

◆ pictureWidthCropped()

◆ pictureHeightCropped()

◆ frameRate()

◆ getFrameRate()

◆ set_AU_pending()

◆ new_AU()

◆ processRBSP()

◆ decode_Header()

◆ decode_SPS()

◆ decode_PPS()

◆ decode_SEI()

Member Data Documentation

◆ m_deltaPicOrderCntBottom

◆ m_deltaPicOrderCnt

◆ m_frameNum

◆ m_picOrderCntLsb

◆ m_picParameterSetId

◆ m_prevDeltaPicOrderCntBottom

◆ m_prevDeltaPicOrderCnt

◆ m_prevFrameNum

◆ m_prevPicOrderCntLsb

◆ m_prevPicParameterSetId

◆ m_idrPicId

◆ m_log2MaxFrameNum

◆ m_log2MaxPicOrderCntLsb

◆ m_numRefFrames

◆ m_prevIdrPicId

◆ m_redundantPicCnt

◆ m_seqParameterSetId

◆ m_sliceType

◆ m_bottomFieldFlag

◆ m_fieldPicFlag

◆ m_frameMbsOnlyFlag

◆ m_nalUnitType

◆ m_picOrderPresentFlag

◆ m_prevBottomFieldFlag

◆ m_prevFieldPicFlag

◆ m_prevNalUnitType

◆ m_redundantPicCntPresentFlag

◆ m_deltaPicOrderAlwaysZeroFlag

◆ m_nalRefIdc

◆ m_picOrderCntType

◆ m_prevNALRefIdc

◆ m_prevPicOrderCntType

◆ m_auContainsKeyframeMessage

◆ m_iIsKeyframe