Video Input Stream. More...

#include <videostream.h>

Public Member Functions
virtual	~cVideoStream (void)

void	DecodeInput (void)
	Decodes a reassembled codec packet.

bool	IsInterlaced (void)

void	Open (AVCodecID, AVCodecParameters *=nullptr, AVRational={ .num=1,.den=90000 })
	Open a video codec.

void	Exit (void)
	Exit video stream.

void	ClearVdrCoreToDecoderQueue (void)
	Clears all video stream data, which is buffered to be decoded.

void	FlushDecoder (void)
	Flush the decoder.

void	CloseDecoder (void)
	Close the decoder.

bool	PushAvPacket (AVPacket *avpkt)
	Pushes a pre-assembled AVPacket directly to the processing queue.

void	Flush (void)
	Flushes the video stream by finalizing any pending data.

void	Stop (void)
	Stop the decoding thread.

void	Halt (void)

void	Resume (void)

cVideoDecoder *	Decoder (void)

void	StartDecoder ()
	Start the decoder.

size_t	GetAvPacketsFilled (void)

bool	IsInputBufferFull (void)

enum AVCodecID	GetCodecId (void)

void	ResetTrickSpeedFramesSentCounter (void)

bool	HasInputPts (void)

int64_t	GetInputPtsMs (void)

int64_t	GetInputPts (void)

void	ResetInputPts (void)

void	GetVideoSize (int , int , double *)
	Get video size and aspect ratio.

int	GetVideoPacketMax (void)

void	CancelFilterThread (void)
	Stop filter thread.

void	ResetFilterThreadNeededCheck ()

virtual void	SetDeinterlacerDeactivated (bool deactivate)

bool	IsDeinterlacerDeactivated (void)

int	HardwareQuirks (void)

void	DisableDeint (bool disable)

void	SetStartDecodingWithIFrame (bool enable)

void	SetParseH264Dimensions (bool enable)

void	SetDecoderFallbackToSwNumPkts (int numPackets)

Protected Member Functions
	cVideoStream (cVideoRender , cQueue< cDrmBuffer > , cSoftHdConfig , bool, std::function< void(AVFrame )>)
	Create a video stream.

virtual void	Action (void)
	Decoding thread loop, which periodically tries to decode input.

Private Member Functions
void	RenderFrame (AVFrame *)
	Render a frame.

void	CheckForcingFrameDecode (void)
	Check, if we need to force the decoder to decode the frame (force a decoder drain)

void	OpenDecoder (void)
	Open the decoder including an H.264 parsing if needed.

bool	ParseH264Packet (AVPacket *)
	Parse an H.264 packet.

Private Attributes
cSoftHdConfig *	m_pConfig
	plugin config

cVideoDecoder *	m_pDecoder
	video decoder

cVideoRender *	m_pRender
	video renderer

const char *	m_identifier
	identifier string for logging

std::function< void(AVFrame *)>	m_frameOutput
	function to output the frame

cQueue< cDrmBuffer > *	m_pDrmBufferQueue
	pointer to renderer's DRM buffer queue

cVideoFilter	m_videoFilter
	pointer to deinterlace/scaling video filter thread

std::mutex	m_mutex
	mutex for decoding thread control

bool	m_checkFilterThreadNeeded
	set, if we have to check, if filter thread is needed at start of playback

int	m_hardwareQuirks
	hardware specific quirks

bool	m_userDisabledDeinterlacer = false
	set, if the user configured the deinterlace to be disabled

bool	m_deinterlacerDeactivated
	set, if the deinterlacer should be disabled temporarily (trickspeed, stillpicture, pip)

bool	m_startDecodingWithIFrame = false
	wait for an I-Frame to start h264 decoding

bool	m_parseH264Dimensions = false
	parse width and height when starting an h264 stream

int	m_decoderFallbackToSwNumPkts = 22
	fallback to sw decoder if hw decoder fails after the given number of packets sent

cQueue< AVPacket >	m_packets {VIDEO_PACKET_MAX}
	AVPackets queue.

enum AVCodecID	m_codecId = AV_CODEC_ID_NONE
	current codec id

AVCodecParameters *	m_pPar = nullptr
	current codec parameters

std::atomic< struct AVRational >	m_timebase
	current codec timebase

int	m_trickpkts
	how many avpkt does the decoder need in trickspeed mode?

int	m_sentTrickPkts = 0
	how many avpkt have been sent to the decoder in trickspeed mode?

volatile bool	m_newStream = false
	flag for new stream

bool	m_interlaced
	flag for interlaced stream

int64_t	m_inputPts = AV_NOPTS_VALUE
	PTS of the first packet in the input buffer.

std::vector< std::string >	m_naluTypesAtStart
	array of strings to log the H.264 frames at stream start

int	m_numIFrames = 0
	counter for the arriving I-Frames at H.264 stream start

int	m_logPackets = 0
	parse and log all frames until the number of given I-Frames arrived

int	m_dropInvalidPackets = 0
	drop P-Frames with invalid references until the given number of I-Frames arrived

std::set< int >	m_dpbFrames
	private set of reference frames (internal short-time decoded picture buffer)

int	m_maxFrameNum = 1
	= 1 << Log2MaxFrameNumMinus4 + 4

int	m_log2MaxFrameNumMinus4 = -4
	cache Log2MaxFrameNumMinus4 from a previous SPS parsing

int	m_ppsNumRefIdxL0DefaultActiveMinus1 = -1
	cache NumRefIdxL0DefaultActiveMinuns1 from a previous PPS parsing

int	m_ppsNumRefIdxL1DefaultActiveMinus1 = -1
	cache NumRefIdxL1DefaultActiveMinuns1 from a previous PPS parsing

bool	m_isResend = false
	track, if we already tried to send the AVPacket to the decoder if so, skip the parsing

Static Private Attributes
static constexpr int	VIDEO_PACKET_MAX = 192
	max number of video packets held in the buffer

Detailed Description

Video Input Stream.

Definition at line 57 of file videostream.h.

Member Function Documentation

◆ Decoder()

cVideoDecoder * cVideoStream::Decoder ( void )

inline

Definition at line 78 of file videostream.h.

References m_pDecoder.

◆ DisableDeint()

void cVideoStream::DisableDeint ( bool disable )

inline

Definition at line 98 of file videostream.h.

References m_userDisabledDeinterlacer.

Referenced by cSoftHdDevice::SetDisableDeint().

◆ GetAvPacketsFilled()

size_t cVideoStream::GetAvPacketsFilled ( void )

inline

Definition at line 80 of file videostream.h.

References m_packets, and cQueue< T >::Size().

Referenced by cVideoRender::DisplayFrame(), cSoftHdDevice::Flush(), cVideoRender::LogDroppedDuped(), and cSoftHdDevice::PlayVideoPkts().

◆ GetCodecId()

enum AVCodecID cVideoStream::GetCodecId ( void )

inline

Definition at line 82 of file videostream.h.

References m_codecId.

◆ GetInputPts()

int64_t cVideoStream::GetInputPts ( void )

inline

Definition at line 86 of file videostream.h.

References m_inputPts.

◆ GetVideoPacketMax()

int cVideoStream::GetVideoPacketMax ( void )

inline

Definition at line 89 of file videostream.h.

References VIDEO_PACKET_MAX.

Referenced by cSoftHdDevice::PlayVideoPkts().

◆ Halt()

void cVideoStream::Halt ( void )

inline

Definition at line 74 of file videostream.h.

References m_mutex.

Referenced by cSoftHdDevice::Clear(), cSoftHdDevice::OnEventReceived(), and cSoftHdDevice::ResetPipStream().

◆ HardwareQuirks()

int cVideoStream::HardwareQuirks ( void )

inline

Definition at line 97 of file videostream.h.

References m_hardwareQuirks.

◆ HasInputPts()

bool cVideoStream::HasInputPts ( void )

inline

Definition at line 84 of file videostream.h.

References AV_NOPTS_VALUE, and m_inputPts.

Referenced by cSoftHdDevice::IsBufferingThresholdReached(), and cSoftHdDevice::OnEventReceived().

◆ IsDeinterlacerDeactivated()

bool cVideoStream::IsDeinterlacerDeactivated ( void )

inline

Definition at line 96 of file videostream.h.

References m_deinterlacerDeactivated.

◆ IsInputBufferFull()

bool cVideoStream::IsInputBufferFull ( void )

inline

Definition at line 81 of file videostream.h.

References m_packets, cQueue< T >::Size(), and VIDEO_PACKET_MAX.

Referenced by cSoftHdDevice::PlayPipVideo(), and cSoftHdDevice::Poll().

◆ IsInterlaced()

bool cVideoStream::IsInterlaced ( void )

inline

Definition at line 62 of file videostream.h.

◆ ResetFilterThreadNeededCheck()

void cVideoStream::ResetFilterThreadNeededCheck ( )

inline

Definition at line 93 of file videostream.h.

References m_checkFilterThreadNeeded.

Referenced by cSoftHdDevice::OnEventReceived(), and cSoftHdDevice::OnLeavingState().

◆ ResetInputPts()

void cVideoStream::ResetInputPts ( void )

inline

Definition at line 87 of file videostream.h.

References AV_NOPTS_VALUE, and m_inputPts.

Referenced by cSoftHdDevice::HandleStillPicture().

◆ ResetTrickSpeedFramesSentCounter()

void cVideoStream::ResetTrickSpeedFramesSentCounter ( void )

inline

Definition at line 83 of file videostream.h.

References m_sentTrickPkts.

Referenced by cSoftHdDevice::OnLeavingState().

◆ Resume()

void cVideoStream::Resume ( void )

inline

Definition at line 75 of file videostream.h.

References m_mutex.

Referenced by cSoftHdDevice::Clear(), cSoftHdDevice::OnEnteringState(), cSoftHdDevice::OnEventReceived(), and cSoftHdDevice::ResetPipStream().

◆ SetDecoderFallbackToSwNumPkts()

void cVideoStream::SetDecoderFallbackToSwNumPkts ( int numPackets )

inline

Definition at line 101 of file videostream.h.

References m_decoderFallbackToSwNumPkts.

Referenced by cSoftHdDevice::SetDecoderFallbackToSw().

◆ SetDeinterlacerDeactivated()

virtual void cVideoStream::SetDeinterlacerDeactivated ( bool deactivate )

inlinevirtual

Reimplemented in cPipVideoStream.

Definition at line 95 of file videostream.h.

References m_deinterlacerDeactivated.

Referenced by CancelFilterThread(), cSoftHdDevice::HandleStillPicture(), cSoftHdDevice::OnEnteringState(), and cSoftHdDevice::OnLeavingState().

◆ SetParseH264Dimensions()

void cVideoStream::SetParseH264Dimensions ( bool enable )

inline

Definition at line 100 of file videostream.h.

References m_parseH264Dimensions.

Referenced by cSoftHdDevice::SetParseH264Dimensions().

◆ SetStartDecodingWithIFrame()

void cVideoStream::SetStartDecodingWithIFrame ( bool enable )

inline

Definition at line 99 of file videostream.h.

References m_startDecodingWithIFrame.

Referenced by cSoftHdDevice::SetDecoderNeedsIFrame().

Member Data Documentation

◆ m_checkFilterThreadNeeded

bool cVideoStream::m_checkFilterThreadNeeded

private

set, if we have to check, if filter thread is needed at start of playback

Definition at line 117 of file videostream.h.

Referenced by CancelFilterThread(), RenderFrame(), and ResetFilterThreadNeededCheck().

◆ m_codecId

enum AVCodecID cVideoStream::m_codecId = AV_CODEC_ID_NONE

private

current codec id

Definition at line 128 of file videostream.h.

Referenced by CloseDecoder(), DecodeInput(), FlushDecoder(), GetCodecId(), Open(), and OpenDecoder().

◆ m_decoderFallbackToSwNumPkts

int cVideoStream::m_decoderFallbackToSwNumPkts = 22

private

fallback to sw decoder if hw decoder fails after the given number of packets sent

Definition at line 123 of file videostream.h.

Referenced by cVideoStream(), DecodeInput(), and SetDecoderFallbackToSwNumPkts().

◆ m_deinterlacerDeactivated

bool cVideoStream::m_deinterlacerDeactivated

private

set, if the deinterlacer should be disabled temporarily (trickspeed, stillpicture, pip)

Definition at line 120 of file videostream.h.

Referenced by IsDeinterlacerDeactivated(), RenderFrame(), and SetDeinterlacerDeactivated().

◆ m_dpbFrames

std::set<int> cVideoStream::m_dpbFrames

private

private set of reference frames (internal short-time decoded picture buffer)

Definition at line 143 of file videostream.h.

Referenced by CloseDecoder(), and ParseH264Packet().

◆ m_dropInvalidPackets

int cVideoStream::m_dropInvalidPackets = 0

private

drop P-Frames with invalid references until the given number of I-Frames arrived

Definition at line 142 of file videostream.h.

Referenced by DecodeInput(), OpenDecoder(), and ParseH264Packet().

◆ m_frameOutput

std::function<void(AVFrame *)> cVideoStream::m_frameOutput

private

function to output the frame

Definition at line 112 of file videostream.h.

Referenced by RenderFrame().

◆ m_hardwareQuirks

int cVideoStream::m_hardwareQuirks

private

hardware specific quirks

Definition at line 118 of file videostream.h.

Referenced by cVideoStream(), FlushDecoder(), HardwareQuirks(), OpenDecoder(), RenderFrame(), and StartDecoder().

◆ m_identifier

const char* cVideoStream::m_identifier

private

identifier string for logging

Definition at line 111 of file videostream.h.

Referenced by ClearVdrCoreToDecoderQueue(), CloseDecoder(), cVideoStream(), DecodeInput(), Exit(), FlushDecoder(), OpenDecoder(), ParseH264Packet(), RenderFrame(), and StartDecoder().

◆ m_inputPts

int64_t cVideoStream::m_inputPts = AV_NOPTS_VALUE

private

PTS of the first packet in the input buffer.

Definition at line 136 of file videostream.h.

Referenced by ClearVdrCoreToDecoderQueue(), GetInputPts(), GetInputPtsMs(), HasInputPts(), PushAvPacket(), and ResetInputPts().

◆ m_interlaced

bool cVideoStream::m_interlaced

private

flag for interlaced stream

Definition at line 134 of file videostream.h.

Referenced by CheckForcingFrameDecode(), and RenderFrame().

◆ m_isResend

bool cVideoStream::m_isResend = false

private

track, if we already tried to send the AVPacket to the decoder if so, skip the parsing

Definition at line 148 of file videostream.h.

Referenced by DecodeInput().

◆ m_log2MaxFrameNumMinus4

int cVideoStream::m_log2MaxFrameNumMinus4 = -4

private

cache Log2MaxFrameNumMinus4 from a previous SPS parsing

Definition at line 145 of file videostream.h.

Referenced by OpenDecoder(), and ParseH264Packet().

◆ m_logPackets

int cVideoStream::m_logPackets = 0

private

parse and log all frames until the number of given I-Frames arrived

Definition at line 141 of file videostream.h.

Referenced by DecodeInput(), and OpenDecoder().

◆ m_maxFrameNum

int cVideoStream::m_maxFrameNum = 1

private

= 1 << Log2MaxFrameNumMinus4 + 4

Definition at line 144 of file videostream.h.

Referenced by CloseDecoder(), and ParseH264Packet().

◆ m_mutex

std::mutex cVideoStream::m_mutex

private

mutex for decoding thread control

Definition at line 115 of file videostream.h.

Referenced by Action(), Halt(), and Resume().

◆ m_naluTypesAtStart

std::vector<std::string> cVideoStream::m_naluTypesAtStart

private

array of strings to log the H.264 frames at stream start

Definition at line 139 of file videostream.h.

Referenced by CloseDecoder(), DecodeInput(), and ParseH264Packet().

◆ m_newStream

volatile bool cVideoStream::m_newStream = false

private

flag for new stream

Definition at line 133 of file videostream.h.

Referenced by DecodeInput(), Open(), and OpenDecoder().

◆ m_numIFrames

int cVideoStream::m_numIFrames = 0

private

counter for the arriving I-Frames at H.264 stream start

Definition at line 140 of file videostream.h.

Referenced by CloseDecoder(), DecodeInput(), and ParseH264Packet().

◆ m_packets

cQueue<AVPacket> cVideoStream::m_packets {VIDEO_PACKET_MAX}

private

AVPackets queue.

Definition at line 126 of file videostream.h.

Referenced by ClearVdrCoreToDecoderQueue(), DecodeInput(), Flush(), GetAvPacketsFilled(), IsInputBufferFull(), OpenDecoder(), and PushAvPacket().

◆ m_parseH264Dimensions

bool cVideoStream::m_parseH264Dimensions = false

private

parse width and height when starting an h264 stream

Definition at line 122 of file videostream.h.

Referenced by OpenDecoder(), and SetParseH264Dimensions().

◆ m_pConfig

cSoftHdConfig* cVideoStream::m_pConfig

private

plugin config

Definition at line 108 of file videostream.h.

Referenced by DecodeInput(), and OpenDecoder().

◆ m_pDecoder

cVideoDecoder* cVideoStream::m_pDecoder

private

video decoder

Definition at line 109 of file videostream.h.

Referenced by CheckForcingFrameDecode(), CloseDecoder(), DecodeInput(), Decoder(), Exit(), FlushDecoder(), GetVideoSize(), OpenDecoder(), RenderFrame(), and StartDecoder().

◆ m_pDrmBufferQueue

cQueue<cDrmBuffer>* cVideoStream::m_pDrmBufferQueue

private

pointer to renderer's DRM buffer queue

Definition at line 113 of file videostream.h.

Referenced by DecodeInput().

◆ m_pPar

AVCodecParameters* cVideoStream::m_pPar = nullptr

private

current codec parameters

Definition at line 129 of file videostream.h.

Referenced by CloseDecoder(), DecodeInput(), FlushDecoder(), Open(), and OpenDecoder().

◆ m_ppsNumRefIdxL0DefaultActiveMinus1

int cVideoStream::m_ppsNumRefIdxL0DefaultActiveMinus1 = -1

private

cache NumRefIdxL0DefaultActiveMinuns1 from a previous PPS parsing

Definition at line 146 of file videostream.h.

Referenced by OpenDecoder(), and ParseH264Packet().

◆ m_ppsNumRefIdxL1DefaultActiveMinus1

int cVideoStream::m_ppsNumRefIdxL1DefaultActiveMinus1 = -1

private

cache NumRefIdxL1DefaultActiveMinuns1 from a previous PPS parsing

Definition at line 147 of file videostream.h.

Referenced by OpenDecoder(), and ParseH264Packet().

◆ m_pRender

cVideoRender* cVideoStream::m_pRender

private

video renderer

Definition at line 110 of file videostream.h.

Referenced by CheckForcingFrameDecode(), and DecodeInput().

◆ m_sentTrickPkts

int cVideoStream::m_sentTrickPkts = 0

private

how many avpkt have been sent to the decoder in trickspeed mode?

Definition at line 132 of file videostream.h.

Referenced by CheckForcingFrameDecode(), DecodeInput(), and ResetTrickSpeedFramesSentCounter().

◆ m_startDecodingWithIFrame

bool cVideoStream::m_startDecodingWithIFrame = false

private

wait for an I-Frame to start h264 decoding

Definition at line 121 of file videostream.h.

Referenced by OpenDecoder(), and SetStartDecodingWithIFrame().

◆ m_timebase

std::atomic<struct AVRational> cVideoStream::m_timebase

private

current codec timebase

Definition at line 130 of file videostream.h.

Referenced by DecodeInput(), FlushDecoder(), GetInputPtsMs(), Open(), OpenDecoder(), and RenderFrame().

◆ m_trickpkts

int cVideoStream::m_trickpkts

private

how many avpkt does the decoder need in trickspeed mode?

Definition at line 131 of file videostream.h.

Referenced by CheckForcingFrameDecode(), and Open().

◆ m_userDisabledDeinterlacer

bool cVideoStream::m_userDisabledDeinterlacer = false

private

set, if the user configured the deinterlace to be disabled

Definition at line 119 of file videostream.h.

Referenced by DisableDeint(), and RenderFrame().

◆ m_videoFilter

cVideoFilter cVideoStream::m_videoFilter

private

pointer to deinterlace/scaling video filter thread

Definition at line 114 of file videostream.h.

Referenced by CancelFilterThread(), DecodeInput(), and RenderFrame().

◆ VIDEO_PACKET_MAX

constexpr int cVideoStream::VIDEO_PACKET_MAX = 192

staticconstexprprivate

max number of video packets held in the buffer

Definition at line 125 of file videostream.h.

Referenced by GetVideoPacketMax(), and IsInputBufferFull().

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

Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Static Private Attributes

Detailed Description

Member Function Documentation

◆ Decoder()

◆ DisableDeint()

◆ GetAvPacketsFilled()

◆ GetCodecId()

◆ GetInputPts()

◆ GetVideoPacketMax()

◆ Halt()

◆ HardwareQuirks()

◆ HasInputPts()

◆ IsDeinterlacerDeactivated()

◆ IsInputBufferFull()

◆ IsInterlaced()

◆ ResetFilterThreadNeededCheck()

◆ ResetInputPts()

◆ ResetTrickSpeedFramesSentCounter()

◆ Resume()

◆ SetDecoderFallbackToSwNumPkts()

◆ SetDeinterlacerDeactivated()

◆ SetParseH264Dimensions()

◆ SetStartDecodingWithIFrame()

Member Data Documentation

◆ m_checkFilterThreadNeeded

◆ m_codecId

◆ m_decoderFallbackToSwNumPkts

◆ m_deinterlacerDeactivated

◆ m_dpbFrames

◆ m_dropInvalidPackets

◆ m_frameOutput

◆ m_hardwareQuirks

◆ m_identifier

◆ m_inputPts

◆ m_interlaced

◆ m_isResend

◆ m_log2MaxFrameNumMinus4

◆ m_logPackets

◆ m_maxFrameNum

◆ m_mutex

◆ m_naluTypesAtStart

◆ m_newStream

◆ m_numIFrames

◆ m_packets

◆ m_parseH264Dimensions

◆ m_pConfig

◆ m_pDecoder

◆ m_pDrmBufferQueue

◆ m_pPar

◆ m_ppsNumRefIdxL0DefaultActiveMinus1

◆ m_ppsNumRefIdxL1DefaultActiveMinus1

◆ m_pRender

◆ m_sentTrickPkts

◆ m_startDecodingWithIFrame

◆ m_timebase

◆ m_trickpkts

◆ m_userDisabledDeinterlacer

◆ m_videoFilter

◆ VIDEO_PACKET_MAX