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=PTSTICKS })
	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.

bool	Drain (void)
	Drains 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)

bool	BuffersEmpty (void)
	Return true, if the input AVPacket, videofilter and drm output buffer queues are empty.

enum AVCodecID	GetCodecId (void)

void	ResetTrickSpeedFramesSentCounter (void)

bool	HasInputPts (void)

int64_t	GetInputPtsMs (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)

void	DisableDeint (bool disable)

void	SetDecoderFallbackToSwNumPkts (int numPackets)

Protected Member Functions
	cVideoStream (cVideoRender , int, 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	SendPacket (AVPacket *)
	Send a packet to the decoder.

int	ReceiveFrame (AVFrame **)
	Receive a decoded frame from the decoder.

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 and test, if the packet is a P-Slice with invalid backward references.

bool	PacketDropNeeded (AVPacket *)
	Test if the packet should be dropped and parse it if needed (see cVideoStream::ParseH264())

int64_t	PtsToMs (int64_t pts)

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_useDeinterlacer = false
	set, if the deinterlacer is used

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?

std::atomic< bool >	m_newStream = false
	flag for new stream

bool	m_interlaced
	flag for interlaced stream

double	m_framerate = 0.0
	current stream framerate

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

int64_t	m_ptsForFramerateDetection = AV_NOPTS_VALUE
	helper PTS to calculate a framerate at stream start

int64_t	m_lastDecodedPts = AV_NOPTS_VALUE
	PTS of the latest packet, which was sent to the decoder in order to detect stream discontinuity.

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

static constexpr int	AV_SYNC_BORDER_MS = 5000
	absolute max a/v difference which should trigger a decoder flush

Detailed Description

Video Input Stream.

Definition at line 48 of file videostream.h.

Constructor & Destructor Documentation

◆ ~cVideoStream()

cVideoStream::~cVideoStream ( void )

virtual

Definition at line 68 of file videostream.cpp.

References LOGDEBUG, and m_identifier.

◆ cVideoStream()

cVideoStream::cVideoStream	(	cVideoRender *	render,
		int	hardwareQuirks,
		cQueue< cDrmBuffer > *	drmBufferQueue,
		cSoftHdConfig *	config,
		bool	isPipStream,
		std::function< void(AVFrame *)>	frameOutput
	)

protected

Create a video stream.

Definition at line 48 of file videostream.cpp.

References cSoftHdConfig::ConfigDecoderFallbackToSw, cSoftHdConfig::ConfigDecoderFallbackToSwNumPkts, L_CODEC, LOGDEBUG, LOGDEBUG2, m_decoderFallbackToSwNumPkts, and m_identifier.

Member Function Documentation

◆ Action()

void cVideoStream::Action ( void )

protectedvirtual

Decoding thread loop, which periodically tries to decode input.

Definition at line 501 of file videostream.cpp.

References DecodeInput(), LOGDEBUG, and m_mutex.

◆ BuffersEmpty()

bool cVideoStream::BuffersEmpty ( void )

Return true, if the input AVPacket, videofilter and drm output buffer queues are empty.

Definition at line 657 of file videostream.cpp.

References cQueue< T >::IsEmpty(), cVideoFilter::IsInputBufferEmpty(), m_packets, m_pRender, m_videoFilter, and cVideoRender::PresentationPending().

Referenced by cSoftHdDevice::Flush().

◆ CancelFilterThread()

void cVideoStream::CancelFilterThread ( void )

Stop filter thread.

Definition at line 531 of file videostream.cpp.

References m_checkFilterThreadNeeded, m_useDeinterlacer, m_videoFilter, SetDeinterlacerDeactivated(), and cVideoFilter::Stop().

Referenced by cSoftHdDevice::Clear(), cSoftHdDevice::EnterState(), cSoftHdDevice::LeaveState(), and cSoftHdDevice::ResetPipStream().

◆ CheckForcingFrameDecode()

void cVideoStream::CheckForcingFrameDecode ( void )

private

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

Get the number of packets we need to have in the buffer while in interlaced trickspeed mode, in order to get a decoded frameout of the decoder.

In a normal interlaced h264 stream we need to force decoding after sending 2 packets in backwards trickspeed to get a decoded frame, in an mpeg2 stream 1 packet is enough.

This minPkts magic guarantees, that we don't drain the decoder too early, but exactly after the right amount of packets was sent in trickspeed mode.

Definition at line 199 of file videostream.cpp.

References cVideoRender::IsForwardTrickspeed(), m_interlaced, m_pDecoder, m_pRender, m_sentTrickPkts, m_trickpkts, and cVideoDecoder::SendPacket().

Referenced by SendPacket().

◆ ClearVdrCoreToDecoderQueue()

void cVideoStream::ClearVdrCoreToDecoderQueue ( void )

Clears all video stream data, which is buffered to be decoded.

Definition at line 125 of file videostream.cpp.

References AV_NOPTS_VALUE, cQueue< T >::IsEmpty(), LOGDEBUG, m_identifier, m_inputPts, m_packets, cQueue< T >::Pop(), and cQueue< T >::Size().

Referenced by cSoftHdDevice::Clear(), cSoftHdDevice::EnterState(), Exit(), and cSoftHdDevice::ResetPipStream().

◆ CloseDecoder()

void cVideoStream::CloseDecoder ( void )

Close the decoder.

Definition at line 152 of file videostream.cpp.

References AV_NOPTS_VALUE, cVideoDecoder::Close(), L_CODEC, LOGDEBUG2, m_codecId, m_dpbFrames, m_framerate, m_identifier, m_lastDecodedPts, m_maxFrameNum, m_naluTypesAtStart, m_numIFrames, m_pDecoder, m_pPar, and m_ptsForFramerateDetection.

Referenced by cSoftHdDevice::EnterState(), and cSoftHdDevice::ResetPipStream().

◆ DecodeInput()

void cVideoStream::DecodeInput ( void )

Decodes a reassembled codec packet.

Definition at line 421 of file videostream.cpp.

References cSoftHdConfig::GetDecoderNeedsMaxPackets(), cVideoDecoder::GetFramesReceived(), cVideoDecoder::GetPacketsSent(), cQueue< T >::IsEmpty(), cQueue< T >::IsFull(), cVideoDecoder::IsHardwareDecoder(), cVideoFilter::IsInputBufferFull(), LOGFATAL, LOGWARNING, m_codecId, m_decoderFallbackToSwNumPkts, m_identifier, m_newStream, m_packets, m_pConfig, m_pDecoder, m_pDrmBufferQueue, m_pPar, m_timebase, m_videoFilter, OpenDecoder(), cQueue< T >::Peek(), ReceiveFrame(), RenderFrame(), cVideoDecoder::ReopenCodec(), SendPacket(), and cSoftHdConfig::SetDecoderNeedsMaxPackets().

Referenced by Action().

◆ Decoder()

cVideoDecoder * cVideoStream::Decoder ( void )

inline

Definition at line 69 of file videostream.h.

References m_pDecoder.

◆ DisableDeint()

void cVideoStream::DisableDeint ( bool disable )

inline

Definition at line 88 of file videostream.h.

References m_userDisabledDeinterlacer.

Referenced by cSoftHdDevice::SetDisableDeint().

◆ Drain()

bool cVideoStream::Drain ( void )

Drains the video stream by finalizing any pending data.

This function completes processing of any remaining PES fragments in the fragmentation buffer, then pushes a nullptr packet to the queue to signal a flush operation to the decoder.

Definition at line 79 of file videostream.cpp.

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

Referenced by cSoftHdDevice::HandleStillPicture().

◆ Exit()

void cVideoStream::Exit ( void )

Exit video stream.

Definition at line 107 of file videostream.cpp.

References ClearVdrCoreToDecoderQueue(), cVideoDecoder::Close(), LOGDEBUG, m_identifier, m_pDecoder, and Stop().

Referenced by cSoftHdDevice::EnterState().

◆ FlushDecoder()

void cVideoStream::FlushDecoder ( void )

Flush the decoder.

Some hardware (RPI) needs a reopen workaround (close/open) here, because hardware doesn't do the hardware flush right.

Definition at line 174 of file videostream.cpp.

References AV_NOPTS_VALUE, cVideoDecoder::FlushBuffers(), cVideoDecoder::IsHardwareDecoder(), L_CODEC, LOGDEBUG2, LOGFATAL, m_codecId, m_hardwareQuirks, m_identifier, m_lastDecodedPts, m_pDecoder, m_pPar, m_timebase, QUIRK_CODEC_FLUSH_WORKAROUND, and cVideoDecoder::ReopenCodec().

Referenced by cSoftHdDevice::Clear(), and ReceiveFrame().

◆ GetAvPacketsFilled()

size_t cVideoStream::GetAvPacketsFilled ( void )

inline

Definition at line 71 of file videostream.h.

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

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

◆ GetCodecId()

enum AVCodecID cVideoStream::GetCodecId ( void )

inline

Definition at line 74 of file videostream.h.

References m_codecId.

◆ GetInputPtsMs()

int64_t cVideoStream::GetInputPtsMs ( void )

inline

Definition at line 77 of file videostream.h.

References m_inputPts, and m_timebase.

Referenced by cSoftHdDevice::CheckPlaybackStartConditions().

◆ GetVideoPacketMax()

int cVideoStream::GetVideoPacketMax ( void )

inline

Definition at line 80 of file videostream.h.

References VIDEO_PACKET_MAX.

Referenced by cSoftHdDevice::PlayVideoPkts().

◆ GetVideoSize()

void cVideoStream::GetVideoSize	(	int *	width,
		int *	height,
		double *	aspect_ratio
	)

Get video size and aspect ratio.

Parameters

[out]	width	video stream width
[out]	height	video stream height
[out]	aspect_ratio	video stream aspect ratio (is currently width/ height)

Definition at line 463 of file videostream.cpp.

References cVideoDecoder::GetContext(), and m_pDecoder.

Referenced by cSoftHdDevice::GetVideoSize().

◆ Halt()

void cVideoStream::Halt ( void )

inline

Definition at line 65 of file videostream.h.

References m_mutex.

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

◆ HasInputPts()

bool cVideoStream::HasInputPts ( void )

inline

Definition at line 76 of file videostream.h.

References AV_NOPTS_VALUE, and m_inputPts.

Referenced by cSoftHdDevice::CheckAudioPlaybackStartConditions(), cSoftHdDevice::CheckPlaybackStartConditions(), and cSoftHdDevice::SchedulePlaybackStart().

◆ IsDeinterlacerDeactivated()

bool cVideoStream::IsDeinterlacerDeactivated ( void )

inline

Definition at line 87 of file videostream.h.

References m_deinterlacerDeactivated.

◆ IsInputBufferFull()

bool cVideoStream::IsInputBufferFull ( void )

inline

Definition at line 72 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 53 of file videostream.h.

◆ Open()

void cVideoStream::Open	(	AVCodecID	codecId,
		AVCodecParameters *	par = `nullptr`,
		AVRational	timebase = `{ .num = 1, .den = PTSTICKS }`
	)

Open a video codec.

Parameters

codecId	video codec id
par	video codec parameters
timebase	timebase

Definition at line 485 of file videostream.cpp.

References m_codecId, m_newStream, m_pPar, m_timebase, and m_trickpkts.

Referenced by cSoftHdDevice::SetVideoCodec().

◆ OpenDecoder()

void cVideoStream::OpenDecoder ( void )

private

Open the decoder including an H.264 parsing if needed.

Definition at line 215 of file videostream.cpp.

References cSoftHdConfig::ConfigDropInvalidH264PFrames, cSoftHdConfig::ConfigParseH264StreamStart, cSoftHdConfig::CurrentDecoderName, cSoftHdConfig::CurrentDecoderType, cVideoDecoder::IsHardwareDecoder(), LOGFATAL, m_codecId, m_dropInvalidPackets, m_identifier, m_logPackets, m_newStream, m_pConfig, m_pDecoder, m_pPar, m_timebase, cVideoDecoder::Name(), and cVideoDecoder::Open().

Referenced by DecodeInput().

◆ PacketDropNeeded()

bool cVideoStream::PacketDropNeeded ( AVPacket * avpkt )

private

Test if the packet should be dropped and parse it if needed (see cVideoStream::ParseH264())

Parameters

avpkt AVPacket to test

Returns: true, if the packet should be dropped, false otherwise

Definition at line 319 of file videostream.cpp.

References LOGDEBUG, m_codecId, m_dropInvalidPackets, m_identifier, m_isResend, m_logPackets, m_naluTypesAtStart, m_numIFrames, and ParseH264Packet().

Referenced by SendPacket().

◆ ParseH264Packet()

bool cVideoStream::ParseH264Packet ( AVPacket * avpkt )

private

Parse an H.264 packet and test, if the packet is a P-Slice with invalid backward references.

Parameters

avpkt AVPacket to parse

Returns

true, if

the packet is a P-Slice and
the packet has invalid backward references and
dropping P-Slices is configured in the setup.conf and
the P-Slice arrived before the number of configured I-Frames false, otherwise

Definition at line 239 of file videostream.cpp.

References L_CODEC, LOGDEBUG2, m_dpbFrames, m_dropInvalidPackets, m_identifier, m_log2MaxFrameNumMinus4, m_maxFrameNum, m_naluTypesAtStart, m_numIFrames, m_ppsNumRefIdxL0DefaultActiveMinus1, and m_ppsNumRefIdxL1DefaultActiveMinus1.

Referenced by PacketDropNeeded().

◆ PtsToMs()

int64_t cVideoStream::PtsToMs ( int64_t pts )

inlineprivate

Definition at line 149 of file videostream.h.

References m_timebase.

Referenced by SendPacket().

◆ PushAvPacket()

bool cVideoStream::PushAvPacket ( AVPacket * avpkt )

Pushes a pre-assembled AVPacket directly to the processing queue.

This function bypasses the PES fragmentation/reassembly mechanism and directly pushes an already-complete AVPacket to the m_packets queue for decoding. Used when packets are received from sources that don't require fragmentation handling.

Parameters

avpkt The AVPacket to push to the queue

Returns: true if the packet was successfully pushed, false otherwise

Definition at line 94 of file videostream.cpp.

References AV_NOPTS_VALUE, L_PACKET, LOGDEBUG2, m_inputPts, m_packets, cQueue< T >::Push(), and Timestamp2StringPts().

Referenced by cSoftHdDevice::HandleStillPicture(), and cSoftHdDevice::PlayVideoPkts().

◆ ReceiveFrame()

int cVideoStream::ReceiveFrame ( AVFrame ** frame )

private

Receive a decoded frame from the decoder.

Parameters

[out] frame Decoded AVFrame

Returns: 0 if frame was decoded, an AVERROR otherwise

Definition at line 403 of file videostream.cpp.

References FlushDecoder(), m_pDecoder, m_sentTrickPkts, and cVideoDecoder::ReceiveFrame().

Referenced by DecodeInput().

◆ RenderFrame()

void cVideoStream::RenderFrame ( AVFrame * frame )

private

Render a frame.

Frames either go through the filter thread or directly into the render buffer.

Parameters

videoCtx	ffmpeg video codec context
frame	frame to render

Definition at line 548 of file videostream.cpp.

References AV_NOPTS_VALUE, cVideoRender::CanHandleMode(), CONFIG_DISPLAY_MODE_FOLLOW_VIDEO_INTERLACED, cSoftHdConfig::ConfigVideoDisplayMode, cSoftHdConfig::CurrentVideoDrmMode, cVideoDecoder::GetContext(), cVideoFilter::GetNumFramesToFilter(), sDrmMode::height, cVideoFilter::InitAndStart(), sDrmMode::interlaced, isInterlacedFrame(), LOGDEBUG, LOGWARNING, m_checkFilterThreadNeeded, m_deinterlacerDeactivated, m_frameOutput, m_framerate, m_identifier, m_interlaced, m_pConfig, m_pDecoder, m_pRender, m_ptsForFramerateDetection, m_timebase, m_useDeinterlacer, m_userDisabledDeinterlacer, m_videoFilter, cVideoFilter::PushFrame(), sDrmMode::refreshRateHz, cVideoRender::SetDisplayMode(), and sDrmMode::width.

Referenced by DecodeInput().

◆ ResetFilterThreadNeededCheck()

void cVideoStream::ResetFilterThreadNeededCheck ( )

inline

Definition at line 84 of file videostream.h.

References m_checkFilterThreadNeeded, and m_useDeinterlacer.

Referenced by cSoftHdDevice::LeaveState(), and cSoftHdDevice::ResetVideoFilter().

◆ ResetInputPts()

void cVideoStream::ResetInputPts ( void )

inline

Definition at line 78 of file videostream.h.

References AV_NOPTS_VALUE, and m_inputPts.

Referenced by cSoftHdDevice::HandleStillPicture().

◆ ResetTrickSpeedFramesSentCounter()

void cVideoStream::ResetTrickSpeedFramesSentCounter ( void )

inline

Definition at line 75 of file videostream.h.

References m_sentTrickPkts.

Referenced by cSoftHdDevice::LeaveState().

◆ Resume()

void cVideoStream::Resume ( void )

inline

Definition at line 66 of file videostream.h.

References m_mutex.

Referenced by cSoftHdDevice::Clear(), cSoftHdDevice::EnterState(), cSoftHdDevice::ResetPipStream(), and cSoftHdDevice::ResumeVideoThreads().

◆ SendPacket()

void cVideoStream::SendPacket ( AVPacket * avpkt )

private

Send a packet to the decoder.

Parameters

avpkt AVPacket to be decoded (can be a nullptr from cVideoStream::Flush())

Note: We may not dereference avpkt without nullptr-check!

Definition at line 347 of file videostream.cpp.

References AV_NOPTS_VALUE, AV_SYNC_BORDER_MS, CheckForcingFrameDecode(), cVideoRender::IsTrickSpeed(), L_CODEC, LOGDEBUG2, m_isResend, m_lastDecodedPts, m_packets, m_pDecoder, m_pRender, PacketDropNeeded(), cQueue< T >::Pop(), PtsToMs(), cVideoDecoder::SendPacket(), and Timestamp2StringPts().

Referenced by DecodeInput().

◆ SetDecoderFallbackToSwNumPkts()

void cVideoStream::SetDecoderFallbackToSwNumPkts ( int numPackets )

inline

Definition at line 89 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 86 of file videostream.h.

References m_deinterlacerDeactivated.

Referenced by CancelFilterThread(), cSoftHdDevice::EnterState(), cSoftHdDevice::HandleStillPicture(), and cSoftHdDevice::LeaveState().

◆ StartDecoder()

void cVideoStream::StartDecoder ( )

Start the decoder.

Definition at line 140 of file videostream.cpp.

References L_CODEC, LOGDEBUG2, m_identifier, and m_pDecoder.

Referenced by cSoftHdDevice::LeaveState().

◆ Stop()

void cVideoStream::Stop ( void )

Stop the decoding thread.

Definition at line 519 of file videostream.cpp.

References LOGDEBUG.

Referenced by Exit().

Member Data Documentation

◆ AV_SYNC_BORDER_MS

constexpr int cVideoStream::AV_SYNC_BORDER_MS = 5000

staticconstexprprivate

absolute max a/v difference which should trigger a decoder flush

Definition at line 114 of file videostream.h.

Referenced by SendPacket().

◆ 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 105 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 116 of file videostream.h.

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

◆ 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 110 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 108 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 134 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 133 of file videostream.h.

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

◆ m_frameOutput

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

private

function to output the frame

Definition at line 100 of file videostream.h.

Referenced by RenderFrame().

◆ m_framerate

double cVideoStream::m_framerate = 0.0

private

current stream framerate

Definition at line 123 of file videostream.h.

Referenced by CloseDecoder(), and RenderFrame().

◆ m_hardwareQuirks

int cVideoStream::m_hardwareQuirks

private

hardware specific quirks

Definition at line 106 of file videostream.h.

Referenced by FlushDecoder().

◆ m_identifier

const char* cVideoStream::m_identifier

private

identifier string for logging

Definition at line 99 of file videostream.h.

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

◆ m_inputPts

int64_t cVideoStream::m_inputPts = AV_NOPTS_VALUE

private

PTS of the first packet in the input buffer.

Definition at line 125 of file videostream.h.

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

◆ m_interlaced

bool cVideoStream::m_interlaced

private

flag for interlaced stream

Definition at line 122 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 139 of file videostream.h.

Referenced by PacketDropNeeded(), and SendPacket().

◆ m_lastDecodedPts

int64_t cVideoStream::m_lastDecodedPts = AV_NOPTS_VALUE

private

PTS of the latest packet, which was sent to the decoder in order to detect stream discontinuity.

Definition at line 127 of file videostream.h.

Referenced by CloseDecoder(), FlushDecoder(), and SendPacket().

◆ m_log2MaxFrameNumMinus4

int cVideoStream::m_log2MaxFrameNumMinus4 = -4

private

cache Log2MaxFrameNumMinus4 from a previous SPS parsing

Definition at line 136 of file videostream.h.

Referenced by 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 132 of file videostream.h.

Referenced by OpenDecoder(), and PacketDropNeeded().

◆ m_maxFrameNum

int cVideoStream::m_maxFrameNum = 1

private

= 1 << Log2MaxFrameNumMinus4 + 4

Definition at line 135 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 103 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 130 of file videostream.h.

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

◆ m_newStream

std::atomic<bool> cVideoStream::m_newStream = false

private

flag for new stream

Definition at line 121 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 131 of file videostream.h.

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

◆ m_packets

cQueue<AVPacket> cVideoStream::m_packets {VIDEO_PACKET_MAX}

private

AVPackets queue.

Definition at line 113 of file videostream.h.

Referenced by BuffersEmpty(), ClearVdrCoreToDecoderQueue(), DecodeInput(), Drain(), GetAvPacketsFilled(), IsInputBufferFull(), PushAvPacket(), and SendPacket().

◆ m_pConfig

cSoftHdConfig* cVideoStream::m_pConfig

private

plugin config

Definition at line 96 of file videostream.h.

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

◆ m_pDecoder

cVideoDecoder* cVideoStream::m_pDecoder

private

video decoder

Definition at line 97 of file videostream.h.

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

◆ m_pDrmBufferQueue

cQueue<cDrmBuffer>* cVideoStream::m_pDrmBufferQueue

private

pointer to renderer's DRM buffer queue

Definition at line 101 of file videostream.h.

Referenced by DecodeInput().

◆ m_pPar

AVCodecParameters* cVideoStream::m_pPar = nullptr

private

current codec parameters

Definition at line 117 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 137 of file videostream.h.

Referenced by ParseH264Packet().

◆ m_ppsNumRefIdxL1DefaultActiveMinus1

int cVideoStream::m_ppsNumRefIdxL1DefaultActiveMinus1 = -1

private

cache NumRefIdxL1DefaultActiveMinuns1 from a previous PPS parsing

Definition at line 138 of file videostream.h.

Referenced by ParseH264Packet().

◆ m_pRender

cVideoRender* cVideoStream::m_pRender

private

video renderer

Definition at line 98 of file videostream.h.

Referenced by BuffersEmpty(), CheckForcingFrameDecode(), RenderFrame(), and SendPacket().

◆ m_ptsForFramerateDetection

int64_t cVideoStream::m_ptsForFramerateDetection = AV_NOPTS_VALUE

private

helper PTS to calculate a framerate at stream start

Definition at line 126 of file videostream.h.

Referenced by CloseDecoder(), and RenderFrame().

◆ m_sentTrickPkts

int cVideoStream::m_sentTrickPkts = 0

private

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

Definition at line 120 of file videostream.h.

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

◆ m_timebase

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

private

current codec timebase

Definition at line 118 of file videostream.h.

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

◆ m_trickpkts

int cVideoStream::m_trickpkts

private

how many avpkt does the decoder need in trickspeed mode?

Definition at line 119 of file videostream.h.

Referenced by CheckForcingFrameDecode(), and Open().

◆ m_useDeinterlacer

bool cVideoStream::m_useDeinterlacer = false

private

set, if the deinterlacer is used

Definition at line 109 of file videostream.h.

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

◆ m_userDisabledDeinterlacer

bool cVideoStream::m_userDisabledDeinterlacer = false

private

set, if the user configured the deinterlace to be disabled

Definition at line 107 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 102 of file videostream.h.

Referenced by BuffersEmpty(), 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 112 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

Constructor & Destructor Documentation

◆ ~cVideoStream()

◆ cVideoStream()

Member Function Documentation

◆ Action()

◆ BuffersEmpty()

◆ CancelFilterThread()

◆ CheckForcingFrameDecode()

◆ ClearVdrCoreToDecoderQueue()

◆ CloseDecoder()

◆ DecodeInput()

◆ Decoder()

◆ DisableDeint()

◆ Drain()

◆ Exit()

◆ FlushDecoder()

◆ GetAvPacketsFilled()

◆ GetCodecId()

◆ GetInputPtsMs()

◆ GetVideoPacketMax()

◆ GetVideoSize()

◆ Halt()

◆ HasInputPts()

◆ IsDeinterlacerDeactivated()

◆ IsInputBufferFull()

◆ IsInterlaced()

◆ Open()

◆ OpenDecoder()

◆ PacketDropNeeded()

◆ ParseH264Packet()

◆ PtsToMs()

◆ PushAvPacket()

◆ ReceiveFrame()

◆ RenderFrame()

◆ ResetFilterThreadNeededCheck()

◆ ResetInputPts()

◆ ResetTrickSpeedFramesSentCounter()

◆ Resume()

◆ SendPacket()

◆ SetDecoderFallbackToSwNumPkts()

◆ SetDeinterlacerDeactivated()

◆ StartDecoder()

◆ Stop()

Member Data Documentation

◆ AV_SYNC_BORDER_MS

◆ m_checkFilterThreadNeeded

◆ m_codecId

◆ m_decoderFallbackToSwNumPkts

◆ m_deinterlacerDeactivated

◆ m_dpbFrames

◆ m_dropInvalidPackets

◆ m_frameOutput

◆ m_framerate

◆ m_hardwareQuirks

◆ m_identifier

◆ m_inputPts

◆ m_interlaced

◆ m_isResend

◆ m_lastDecodedPts

◆ m_log2MaxFrameNumMinus4

◆ m_logPackets

◆ m_maxFrameNum

◆ m_mutex

◆ m_naluTypesAtStart

◆ m_newStream

◆ m_numIFrames

◆ m_packets

◆ m_pConfig

◆ m_pDecoder

◆ m_pDrmBufferQueue

◆ m_pPar

◆ m_ppsNumRefIdxL0DefaultActiveMinus1

◆ m_ppsNumRefIdxL1DefaultActiveMinus1

◆ m_pRender