H2645Parser Class Reference

#include <libmythtv/mpeg/H2645Parser.h>

Inheritance diagram for H2645Parser:

Collaboration diagram for H2645Parser:

Public Types
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
	H2645Parser (void)
	H2645Parser (const H2645Parser &rhs)
virtual	~H2645Parser (void)
virtual uint32_t	addBytes (const uint8_t *bytes, uint32_t byte_count, uint64_t stream_offset)=0
virtual void	Reset (void)
virtual QString	NAL_type_str (int8_t type)=0
bool	stateChanged (void) const
bool	onFrameStart (void) const
bool	onKeyFrameStart (void) const
uint	pictureWidth (void) const
uint	pictureHeight (void) const
virtual uint	pictureWidthCropped (void) const =0
virtual uint	pictureHeightCropped (void) const =0
uint	aspectRatio (void) const
	Computes aspect ratio from picture size and sample aspect ratio. More...
virtual MythAVRational	getFrameRate () const =0
virtual field_type	getFieldType (void) const =0
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 Attributes
static constexpr uint16_t	kMaxSliceHeaderSize { 256 }

Protected Member Functions
void	resetRBSP (void)
bool	fillRBSP (const uint8_t *byteP, uint32_t byte_count, bool found_start_code)
void	vui_parameters (BitReader &br, bool hevc)

Protected Attributes
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
static constexpr uint8_t	kExtendedSar { 255 }

Detailed Description

Definition at line 38 of file H2645Parser.h.

Member Enumeration Documentation

field_type

enum H2645Parser::field_type : std::uint8_t

Enumerator
FRAME
FIELD_TOP
FIELD_BOTTOM

Definition at line 42 of file H2645Parser.h.

NAL_unit_type

enum H2645Parser::NAL_unit_type : std::int8_t

Enumerator
UNKNOWN

Definition at line 83 of file H2645Parser.h.

SLICE_type

enum H2645Parser::SLICE_type : std::uint8_t

Enumerator
SLICE_P
SLICE_B
SLICE_I
SLICE_SP
SLICE_SI
SLICE_P_a
SLICE_B_a
SLICE_I_a
SLICE_SP_a
SLICE_SI_a
SLICE_UNDEF

Definition at line 87 of file H2645Parser.h.

Constructor & Destructor Documentation

H2645Parser() [1/2]

H2645Parser::H2645Parser

(

void

)

Definition at line 85 of file H2645Parser.cpp.

H2645Parser() [2/2]

H2645Parser::H2645Parser

(

const H2645Parser &

rhs

)

~H2645Parser()

virtual H2645Parser::~H2645Parser ( void  )

inlinevirtual

Definition at line 50 of file H2645Parser.h.

Member Function Documentation

addBytes()

virtual uint32_t H2645Parser::addBytes ( const uint8_t *  bytes, uint32_t  byte_count, uint64_t  stream_offset  )

pure virtual

Implemented in AVCParser, and HEVCParser.

Referenced by DTVRecorder::FindH2645Keyframes().

aspectRatio()

uint H2645Parser::aspectRatio

(

void

)

const

Computes aspect ratio from picture size and sample aspect ratio.

Definition at line 387 of file H2645Parser.cpp.

Referenced by DTVRecorder::FindH2645Keyframes().

fillRBSP()

bool H2645Parser::fillRBSP ( const uint8_t *  byteP, uint32_t  byte_count, bool  found_start_code  )

protected

Definition at line 133 of file H2645Parser.cpp.

Referenced by AVCParser::addBytes(), and HEVCParser::addBytes().

frameAUstreamOffset()

uint64_t H2645Parser::frameAUstreamOffset ( void  ) const

inline

Definition at line 75 of file H2645Parser.h.

getFieldType()

virtual field_type H2645Parser::getFieldType ( void  ) const

pure virtual

Implemented in AVCParser, and HEVCParser.

Referenced by DTVRecorder::FindH2645Keyframes().

getFrameRate()

virtual MythAVRational H2645Parser::getFrameRate ( ) const

pure virtual

Implemented in AVCParser, and HEVCParser.

Referenced by DTVRecorder::FindH2645Keyframes().

GetScanType()

SCAN_t H2645Parser::GetScanType ( void  ) const

inline

Definition at line 81 of file H2645Parser.h.

Referenced by DTVRecorder::FindH2645Keyframes().

GetTimeScale()

uint32_t H2645Parser::GetTimeScale ( void  ) const

inline

Definition at line 79 of file H2645Parser.h.

Referenced by DTVRecorder::FindH2645Keyframes().

GetUnitsInTick()

uint32_t H2645Parser::GetUnitsInTick ( void  ) const

inline

Definition at line 80 of file H2645Parser.h.

Referenced by DTVRecorder::FindH2645Keyframes().

keyframeAUstreamOffset()

uint64_t H2645Parser::keyframeAUstreamOffset ( void  ) const

inline

Definition at line 76 of file H2645Parser.h.

Referenced by DTVRecorder::FindH2645Keyframes(), and DTVRecorder::HandleH2645Keyframe().

NAL_type_str()

virtual QString H2645Parser::NAL_type_str ( int8_t  type )

pure virtual

Implemented in AVCParser, and HEVCParser.

onFrameStart()

bool H2645Parser::onFrameStart ( void  ) const

inline

Definition at line 61 of file H2645Parser.h.

Referenced by DTVRecorder::FindH2645Keyframes(), and AvFormatDecoder::H264PreProcessPkt().

onKeyFrameStart()

bool H2645Parser::onKeyFrameStart ( void  ) const

inline

Definition at line 62 of file H2645Parser.h.

Referenced by DTVRecorder::FindH2645Keyframes(), and AvFormatDecoder::H264PreProcessPkt().

pictureHeight()

uint H2645Parser::pictureHeight ( void  ) const

inline

Definition at line 65 of file H2645Parser.h.

Referenced by DTVRecorder::FindH2645Keyframes().

pictureHeightCropped()

virtual uint H2645Parser::pictureHeightCropped ( void  ) const

pure virtual

Implemented in AVCParser, and HEVCParser.

Referenced by aspectRatio().

pictureWidth()

uint H2645Parser::pictureWidth ( void  ) const

inline

Definition at line 64 of file H2645Parser.h.

Referenced by DTVRecorder::FindH2645Keyframes().

pictureWidthCropped()

virtual uint H2645Parser::pictureWidthCropped ( void  ) const

pure virtual

Implemented in AVCParser, and HEVCParser.

Referenced by aspectRatio().

Reset()

void H2645Parser::Reset ( void  )

virtual

Reimplemented in AVCParser, and HEVCParser.

Definition at line 92 of file H2645Parser.cpp.

Referenced by ExternalRecorder::PauseAndWait(), AVCParser::Reset(), HEVCParser::Reset(), MpegRecorder::Reset(), MpegRecorder::StartEncoding(), and V4L2encRecorder::StartEncoding().

resetRBSP()

void H2645Parser::resetRBSP ( void  )

protected

Definition at line 126 of file H2645Parser.cpp.

Referenced by AVCParser::addBytes(), HEVCParser::addBytes(), and AVCParser::Reset().

SPSstreamOffset()

uint64_t H2645Parser::SPSstreamOffset ( void  ) const

inline

Definition at line 77 of file H2645Parser.h.

stateChanged()

bool H2645Parser::stateChanged ( void  ) const

inline

Definition at line 59 of file H2645Parser.h.

Referenced by DTVRecorder::FindH2645Keyframes(), and AvFormatDecoder::H264PreProcessPkt().

vui_parameters()

void H2645Parser::vui_parameters ( BitReader &  br, bool  hevc  )

protected

Definition at line 214 of file H2645Parser.cpp.

Referenced by AVCParser::decode_SPS(), and HEVCParser::parseSPS().

Member Data Documentation

kExtendedSar

constexpr uint8_t H2645Parser::kExtendedSar { 255 }

staticconstexprprotected

Definition at line 102 of file H2645Parser.h.

Referenced by aspectRatio(), and vui_parameters().

kMaxSliceHeaderSize

constexpr uint16_t H2645Parser::kMaxSliceHeaderSize { 256 }

staticconstexpr

Definition at line 40 of file H2645Parser.h.

Referenced by AVCParser::processRBSP().

m_aspectRatioIdc

uint8_t H2645Parser::m_aspectRatioIdc {0}

protected

Definition at line 139 of file H2645Parser.h.

Referenced by aspectRatio(), Reset(), and vui_parameters().

m_auOffset

uint64_t H2645Parser::m_auOffset {0}

protected

Definition at line 114 of file H2645Parser.h.

Referenced by AVCParser::processRBSP(), HEVCParser::processRBSP(), Reset(), and AVCParser::set_AU_pending().

m_auPending

bool H2645Parser::m_auPending {false}

protected

Definition at line 143 of file H2645Parser.h.

Referenced by AVCParser::found_AU(), HEVCParser::newAU(), AVCParser::processRBSP(), HEVCParser::processRBSP(), Reset(), and AVCParser::set_AU_pending().

m_chromaFormatIdc

int8_t H2645Parser::m_chromaFormatIdc {1}

protected

Definition at line 141 of file H2645Parser.h.

Referenced by AVCParser::decode_SPS(), HEVCParser::parseSPS(), AVCParser::pictureHeightCropped(), HEVCParser::pictureHeightCropped(), AVCParser::pictureWidthCropped(), HEVCParser::pictureWidthCropped(), and Reset().

m_consecutiveZeros

uint32_t H2645Parser::m_consecutiveZeros {0}

protected

Definition at line 120 of file H2645Parser.h.

Referenced by fillRBSP(), and resetRBSP().

m_fixedRate

bool H2645Parser::m_fixedRate {false}

protected

Definition at line 144 of file H2645Parser.h.

Referenced by HEVCParser::parseVPS(), Reset(), and vui_parameters().

m_framecnt

uint64_t H2645Parser::m_framecnt {0}

protected

Definition at line 110 of file H2645Parser.h.

Referenced by HEVCParser::addBytes(), and HEVCParser::processRBSP().

m_frameCropBottomOffset

uint H2645Parser::m_frameCropBottomOffset {0}

protected

Definition at line 129 of file H2645Parser.h.

Referenced by AVCParser::decode_SPS(), HEVCParser::parseSPS(), AVCParser::pictureHeightCropped(), HEVCParser::pictureHeightCropped(), and Reset().

m_frameCropLeftOffset

uint H2645Parser::m_frameCropLeftOffset {0}

protected

Definition at line 130 of file H2645Parser.h.

Referenced by AVCParser::decode_SPS(), HEVCParser::parseSPS(), and Reset().

m_frameCropRightOffset

uint H2645Parser::m_frameCropRightOffset {0}

protected

Definition at line 131 of file H2645Parser.h.

Referenced by AVCParser::decode_SPS(), HEVCParser::parseSPS(), AVCParser::pictureWidthCropped(), HEVCParser::pictureWidthCropped(), and Reset().

m_frameCropTopOffset

uint H2645Parser::m_frameCropTopOffset {0}

protected

Definition at line 132 of file H2645Parser.h.

Referenced by AVCParser::decode_SPS(), HEVCParser::parseSPS(), and Reset().

m_frameStartOffset

uint64_t H2645Parser::m_frameStartOffset {0}

protected

Definition at line 115 of file H2645Parser.h.

Referenced by frameAUstreamOffset(), AVCParser::processRBSP(), HEVCParser::processRBSP(), and Reset().

m_haveUnfinishedNAL

bool H2645Parser::m_haveUnfinishedNAL {false}

protected

Definition at line 145 of file H2645Parser.h.

Referenced by AVCParser::addBytes(), HEVCParser::addBytes(), AVCParser::processRBSP(), HEVCParser::processRBSP(), and resetRBSP().

m_isKeyframe

bool H2645Parser::m_isKeyframe {false}

protected

Definition at line 146 of file H2645Parser.h.

Referenced by AVCParser::decode_Header(), AVCParser::processRBSP(), and Reset().

m_keyframecnt

uint64_t H2645Parser::m_keyframecnt {0}

protected

Definition at line 111 of file H2645Parser.h.

Referenced by HEVCParser::addBytes(), and HEVCParser::processRBSP().

m_keyframeStartOffset

uint64_t H2645Parser::m_keyframeStartOffset {0}

protected

Definition at line 116 of file H2645Parser.h.

Referenced by keyframeAUstreamOffset(), AVCParser::processRBSP(), HEVCParser::processRBSP(), and Reset().

m_onAU

bool H2645Parser::m_onAU {false}

protected

Definition at line 147 of file H2645Parser.h.

Referenced by HEVCParser::newAU(), and HEVCParser::processRBSP().

m_onFrame

bool H2645Parser::m_onFrame {false}

protected

Definition at line 148 of file H2645Parser.h.

Referenced by AVCParser::addBytes(), HEVCParser::addBytes(), onFrameStart(), AVCParser::processRBSP(), HEVCParser::processRBSP(), and Reset().

m_onKeyFrame

bool H2645Parser::m_onKeyFrame {false}

protected

Definition at line 149 of file H2645Parser.h.

Referenced by AVCParser::addBytes(), HEVCParser::addBytes(), onKeyFrameStart(), AVCParser::processRBSP(), HEVCParser::processRBSP(), and Reset().

m_picHeight

uint H2645Parser::m_picHeight {0}

protected

Definition at line 133 of file H2645Parser.h.

Referenced by aspectRatio(), AVCParser::decode_SPS(), HEVCParser::parseSliceSegmentHeader(), HEVCParser::parseSPS(), pictureHeight(), AVCParser::pictureHeightCropped(), HEVCParser::pictureHeightCropped(), and Reset().

m_picWidth

uint H2645Parser::m_picWidth {0}

protected

Definition at line 134 of file H2645Parser.h.

Referenced by AVCParser::decode_SPS(), HEVCParser::parseSliceSegmentHeader(), HEVCParser::parseSPS(), pictureWidth(), AVCParser::pictureWidthCropped(), HEVCParser::pictureWidthCropped(), and Reset().

m_pktOffset

uint64_t H2645Parser::m_pktOffset {0}

protected

Definition at line 117 of file H2645Parser.h.

Referenced by AVCParser::addBytes(), HEVCParser::addBytes(), AVCParser::processRBSP(), HEVCParser::processRBSP(), Reset(), and AVCParser::set_AU_pending().

m_rbspBuffer

uint8_t* H2645Parser::m_rbspBuffer {nullptr}

protected

Definition at line 138 of file H2645Parser.h.

Referenced by fillRBSP(), H2645Parser(), AVCParser::processRBSP(), HEVCParser::processRBSP(), and ~H2645Parser().

m_rbspBufferSize

uint32_t H2645Parser::m_rbspBufferSize {188 * 2}

protected

Definition at line 121 of file H2645Parser.h.

Referenced by fillRBSP(), and H2645Parser().

m_rbspIndex

uint32_t H2645Parser::m_rbspIndex {0}

protected

Definition at line 122 of file H2645Parser.h.

Referenced by fillRBSP(), AVCParser::processRBSP(), HEVCParser::processRBSP(), and resetRBSP().

m_sarHeight

uint H2645Parser::m_sarHeight {0}

protected

Definition at line 135 of file H2645Parser.h.

Referenced by aspectRatio(), HEVCParser::parseSPS(), Reset(), and vui_parameters().

m_sarWidth

uint H2645Parser::m_sarWidth {0}

protected

Definition at line 136 of file H2645Parser.h.

Referenced by aspectRatio(), HEVCParser::parseSPS(), Reset(), and vui_parameters().

m_scanType

SCAN_t H2645Parser::m_scanType {SCAN_t::UNKNOWN_SCAN}

protected

Definition at line 127 of file H2645Parser.h.

Referenced by GetScanType(), and HEVCParser::profileTierLevel().

m_seenSPS

bool H2645Parser::m_seenSPS {false}

protected

Definition at line 150 of file H2645Parser.h.

Referenced by AVCParser::decode_SPS(), HEVCParser::parseSliceSegmentLayer(), HEVCParser::parseSPS(), AVCParser::processRBSP(), HEVCParser::processRBSP(), Reset(), AVCParser::reset_SPS(), and AVCParser::seen_SPS().

m_separateColourPlaneFlag

bool H2645Parser::m_separateColourPlaneFlag {false}

protected

Definition at line 151 of file H2645Parser.h.

Referenced by AVCParser::decode_Header(), AVCParser::decode_SPS(), HEVCParser::parseSPS(), AVCParser::pictureHeightCropped(), AVCParser::pictureWidthCropped(), and Reset().

m_spsOffset

uint64_t H2645Parser::m_spsOffset {0}

protected

Definition at line 118 of file H2645Parser.h.

Referenced by AVCParser::processRBSP(), HEVCParser::processRBSP(), Reset(), and SPSstreamOffset().

m_stateChanged

bool H2645Parser::m_stateChanged {false}

protected

Definition at line 152 of file H2645Parser.h.

Referenced by AVCParser::addBytes(), HEVCParser::addBytes(), AVCParser::processRBSP(), HEVCParser::processRBSP(), Reset(), and stateChanged().

m_syncAccumulator

uint32_t H2645Parser::m_syncAccumulator {0xffffffff}

protected

Definition at line 123 of file H2645Parser.h.

Referenced by AVCParser::addBytes(), HEVCParser::addBytes(), and Reset().

m_timeScale

uint32_t H2645Parser::m_timeScale {0}

protected

Definition at line 124 of file H2645Parser.h.

Referenced by AVCParser::frameRate(), AVCParser::getFrameRate(), HEVCParser::getFrameRate(), GetTimeScale(), HEVCParser::parseVPS(), Reset(), and vui_parameters().

m_totalframecnt

uint64_t H2645Parser::m_totalframecnt {0}

protected

Definition at line 112 of file H2645Parser.h.

Referenced by HEVCParser::addBytes(), and HEVCParser::processRBSP().

m_totalkeyframecnt

uint64_t H2645Parser::m_totalkeyframecnt {0}

protected

Definition at line 113 of file H2645Parser.h.

Referenced by HEVCParser::addBytes(), and HEVCParser::processRBSP().

m_unitsInTick

uint32_t H2645Parser::m_unitsInTick {0}

protected

Definition at line 125 of file H2645Parser.h.

Referenced by AVCParser::frameRate(), AVCParser::getFrameRate(), HEVCParser::getFrameRate(), GetUnitsInTick(), HEVCParser::parseVPS(), Reset(), and vui_parameters().

---

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

• mythtv/libs/libmythtv/mpeg/H2645Parser.h
• mythtv/libs/libmythtv/mpeg/H2645Parser.cpp