cVideoStream - Video stream class More...

#include <videostream.h>

Collaboration diagram for cVideoStream:

[legend]

Public Member Functions
	cVideoStream (cVideoRender , cQueue< cDrmBuffer > , cSoftHdConfig , const char , std::function< void(AVFrame *)>)
	cVideoStream constructor More...

virtual	~cVideoStream (void)
	cVideoStream destructor More...

void	DecodeInput (void)
	Decodes a reassembled codec packet. More...

bool	IsInterlaced (void)

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

void	Exit (void)
	Exit video stream. More...

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

void	FlushDecoder (void)
	Flush the decoder. More...

void	CloseDecoder (void)
	Close the decoder. More...

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

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

cVideoDecoder *	Decoder (void)

void	StartDecoder ()
	Start the decoder. More...

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

void	ExitDecodingThread (void)
	Stop decoding thread. More...

void	DecodingThreadHalt (void)

void	DecodingThreadResume (void)

void	CancelFilterThread (void)
	Stop filter thread. More...

void	ResetFilterThreadNeededCheck ()

void	SetDeinterlacerDeactivated (bool deactivate)

bool	IsDeinterlacerDeactivated (void)

int	HardwareQuirks (void)

void	DisableDeint (bool disable)

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

Private Attributes
cVideoDecoder *	m_pDecoder
	video decoder More...

cVideoRender *	m_pRender
	video renderer More...

cFilterThread *	m_pFilterThread
	pointer to deinterlace filter thread More...

const char *	m_identifier
	identifier string for logging More...

std::string	m_filterThreadName
	filter thread name string (persists for object lifetime) More...

std::string	m_decodingThreadName
	decoding thread name string (persists for object lifetime) More...

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

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

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

int	m_hardwareQuirks
	hardware specific quirks More...

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

bool	m_deinterlacerDeactivated = false
	set, if the deinterlacer shall be deactivated temporarily (used for trick speed and still picture) More...

cQueue< AVPacket >	m_packets {VIDEO_PACKET_MAX}
	AVPackets queue. More...

enum AVCodecID	m_codecId = AV_CODEC_ID_NONE
	current codec id More...

AVCodecParameters *	m_pPar = nullptr
	current codec parameters More...

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

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

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

volatile bool	m_newStream
	flag for new stream More...

bool	m_interlaced
	flag for interlaced stream More...

cDecodingThread *	m_pDecodingThread
	pointer to decoding thread More...

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

Detailed Description

cVideoStream - Video stream class

Definition at line 50 of file videostream.h.

Constructor & Destructor Documentation

◆ cVideoStream()

cVideoStream::cVideoStream	(	cVideoRender *	render,
		cQueue< cDrmBuffer > *	drmBufferQueue,
		cSoftHdConfig *	config,
		const char *	identifier,
		std::function< void(AVFrame *)>	frameOutput
	)

cVideoStream constructor

Definition at line 169 of file videostream.cpp.

References cSoftHdConfig::ConfigDisableDeint, LOGDEBUG, m_codecId, m_filterThreadName, m_frameOutput, m_hardwareQuirks, m_identifier, m_newStream, m_pDecoder, m_pDrmBufferQueue, m_pFilterThread, m_pPar, m_pRender, m_userDisabledDeinterlacer, and ReadHWPlatform().

◆ ~cVideoStream()

cVideoStream::~cVideoStream ( void )

virtual

cVideoStream destructor

Definition at line 193 of file videostream.cpp.

References LOGDEBUG, and m_pFilterThread.

Member Function Documentation

◆ CancelFilterThread()

void cVideoStream::CancelFilterThread ( void )

Stop filter thread.

Definition at line 438 of file videostream.cpp.

References m_checkFilterThreadNeeded, m_pFilterThread, and cFilterThread::Stop().

Referenced by cSoftHdDevice::Clear(), cSoftHdDevice::DelPip(), cSoftHdDevice::OnEnteringState(), and cSoftHdDevice::OnLeavingState().

◆ ClearVdrCoreToDecoderQueue()

void cVideoStream::ClearVdrCoreToDecoderQueue ( void )

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

Definition at line 256 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::DelPip(), Exit(), and cSoftHdDevice::OnEnteringState().

◆ CloseDecoder()

void cVideoStream::CloseDecoder ( void )

Close the decoder.

Definition at line 284 of file videostream.cpp.

References cVideoDecoder::Close(), L_CODEC, LOGDEBUG2, m_codecId, m_identifier, m_pDecoder, and m_pPar.

Referenced by cSoftHdDevice::DelPip(), and cSoftHdDevice::OnEnteringState().

◆ DecodeInput()

void cVideoStream::DecodeInput ( void )

Decodes a reassembled codec packet.

Definition at line 314 of file videostream.cpp.

References FlushDecoder(), cH264Parser::GetDimensions(), cVideoRender::GetTrickForward(), cVideoRender::GetTrickSpeed(), cQueue< T >::IsEmpty(), cQueue< T >::IsFull(), cFilterThread::IsInputBufferFull(), L_CODEC, LOGDEBUG2, LOGFATAL, m_codecId, m_hardwareQuirks, m_identifier, m_interlaced, m_newStream, m_packets, m_pDecoder, m_pDrmBufferQueue, m_pFilterThread, m_pPar, m_pRender, m_sentTrickPkts, m_timebase, m_trickpkts, cVideoDecoder::Open(), cQueue< T >::Peek(), cQueue< T >::Pop(), QUIRK_CODEC_NEEDS_EXT_INIT, cVideoDecoder::ReceiveFrame(), RenderFrame(), and cVideoDecoder::SendPacket().

Referenced by cDecodingThread::Action().

◆ Decoder()

cVideoDecoder * cVideoStream::Decoder ( void )

inline

Definition at line 68 of file videostream.h.

References m_pDecoder.

◆ DecodingThreadHalt()

void cVideoStream::DecodingThreadHalt ( void )

inline

Definition at line 81 of file videostream.h.

References cDecodingThread::Halt(), and m_pDecodingThread.

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

◆ DecodingThreadResume()

void cVideoStream::DecodingThreadResume ( void )

inline

Definition at line 82 of file videostream.h.

References m_pDecodingThread, and cDecodingThread::Resume().

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

◆ DisableDeint()

void cVideoStream::DisableDeint ( bool disable )

inline

Definition at line 91 of file videostream.h.

References m_userDisabledDeinterlacer.

Referenced by cSoftHdDevice::SetDisableDeint().

◆ Exit()

void cVideoStream::Exit ( void )

Exit video stream.

Definition at line 238 of file videostream.cpp.

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

Referenced by cSoftHdDevice::OnEnteringState().

◆ ExitDecodingThread()

void cVideoStream::ExitDecodingThread ( void )

Stop decoding thread.

Definition at line 424 of file videostream.cpp.

References LOGDEBUG, m_identifier, m_pDecodingThread, and cDecodingThread::Stop().

Referenced by Exit().

◆ Flush()

void cVideoStream::Flush ( void )

Flushes 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 207 of file videostream.cpp.

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

Referenced by cSoftHdDevice::HandleStillPicture().

◆ 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 299 of file videostream.cpp.

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

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

◆ GetAvPacketsFilled()

size_t cVideoStream::GetAvPacketsFilled ( void )

inline

Definition at line 70 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 72 of file videostream.h.

References m_codecId.

Referenced by cSoftHdDevice::PlayVideoInternal().

◆ GetInputPts()

int64_t cVideoStream::GetInputPts ( void )

inline

Definition at line 76 of file videostream.h.

References m_inputPts.

◆ GetInputPtsMs()

int64_t cVideoStream::GetInputPtsMs ( void )

Definition at line 230 of file videostream.cpp.

References m_inputPts, and m_timebase.

Referenced by cSoftHdDevice::IsBufferingThresholdReached().

◆ 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 387 of file videostream.cpp.

References cVideoDecoder::GetContext(), and m_pDecoder.

Referenced by cSoftHdDevice::GetVideoSize().

◆ HardwareQuirks()

int cVideoStream::HardwareQuirks ( void )

inline

Definition at line 90 of file videostream.h.

References m_hardwareQuirks.

◆ HasInputPts()

bool cVideoStream::HasInputPts ( void )

inline

Definition at line 74 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 89 of file videostream.h.

References m_deinterlacerDeactivated.

◆ IsInputBufferFull()

bool cVideoStream::IsInputBufferFull ( void )

inline

Definition at line 71 of file videostream.h.

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

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

◆ IsInterlaced()

bool cVideoStream::IsInterlaced ( void )

inline

Definition at line 57 of file videostream.h.

Referenced by cVideoRender::GetTrickSpeed().

◆ Open()

void cVideoStream::Open	(	AVCodecID	codecId,
		AVCodecParameters *	par = `nullptr`,
		AVRational	timebase = `{ .num = 1, .den = 90000 }`
	)

Open a video codec.

Parameters

codecId	video codec id
par	video codec parameters
timebase	timebase

Definition at line 409 of file videostream.cpp.

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

Referenced by cSoftHdDevice::PlayVideoInternal(), and cSoftHdDevice::SetVideoCodec().

◆ 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 222 of file videostream.cpp.

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

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

◆ 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 453 of file videostream.cpp.

References cVideoDecoder::GetContext(), cFilterThread::GetNumFramesToFilter(), cFilterThread::InitAndStart(), isInterlacedFrame(), LOGDEBUG, LOGWARNING, m_checkFilterThreadNeeded, m_deinterlacerDeactivated, m_frameOutput, m_hardwareQuirks, m_identifier, m_interlaced, m_pDecoder, m_pFilterThread, m_timebase, m_userDisabledDeinterlacer, cFilterThread::PushFrame(), and QUIRK_NO_HW_DEINT.

Referenced by DecodeInput().

◆ ResetFilterThreadNeededCheck()

void cVideoStream::ResetFilterThreadNeededCheck ( )

inline

Definition at line 86 of file videostream.h.

References m_checkFilterThreadNeeded.

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

◆ ResetTrickSpeedFramesSentCounter()

void cVideoStream::ResetTrickSpeedFramesSentCounter ( void )

inline

Definition at line 73 of file videostream.h.

References m_sentTrickPkts.

Referenced by cSoftHdDevice::OnLeavingState().

◆ SetDeinterlacerDeactivated()

void cVideoStream::SetDeinterlacerDeactivated ( bool deactivate )

inline

Definition at line 88 of file videostream.h.

References m_deinterlacerDeactivated.

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

◆ StartDecoder()

void cVideoStream::StartDecoder ( )

Start the decoder.

Definition at line 271 of file videostream.cpp.

References L_CODEC, LOGDEBUG2, m_decodingThreadName, m_hardwareQuirks, m_identifier, m_pDecoder, and m_pDecodingThread.

Referenced by cSoftHdDevice::OnLeavingState().

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 103 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 110 of file videostream.h.

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

◆ m_decodingThreadName

std::string cVideoStream::m_decodingThreadName

private

decoding thread name string (persists for object lifetime)

Definition at line 99 of file videostream.h.

Referenced by StartDecoder().

◆ m_deinterlacerDeactivated

bool cVideoStream::m_deinterlacerDeactivated = false

private

set, if the deinterlacer shall be deactivated temporarily (used for trick speed and still picture)

Definition at line 106 of file videostream.h.

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

◆ m_filterThreadName

std::string cVideoStream::m_filterThreadName

private

filter thread name string (persists for object lifetime)

Definition at line 98 of file videostream.h.

Referenced by cVideoStream().

◆ 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 cVideoStream(), and RenderFrame().

◆ m_hardwareQuirks

int cVideoStream::m_hardwareQuirks

private

hardware specific quirks

Definition at line 104 of file videostream.h.

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

◆ m_identifier

const char* cVideoStream::m_identifier

private

identifier string for logging

Definition at line 97 of file videostream.h.

Referenced by ClearVdrCoreToDecoderQueue(), CloseDecoder(), cVideoStream(), DecodeInput(), Exit(), ExitDecodingThread(), FlushDecoder(), 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 119 of file videostream.h.

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

◆ m_interlaced

bool cVideoStream::m_interlaced

private

flag for interlaced stream

Definition at line 116 of file videostream.h.

Referenced by DecodeInput(), and RenderFrame().

◆ m_newStream

volatile bool cVideoStream::m_newStream

private

flag for new stream

Definition at line 115 of file videostream.h.

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

◆ m_packets

cQueue<AVPacket> cVideoStream::m_packets {VIDEO_PACKET_MAX}

private

AVPackets queue.

Definition at line 108 of file videostream.h.

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

◆ m_pDecoder

cVideoDecoder* cVideoStream::m_pDecoder

private

video decoder

Definition at line 94 of file videostream.h.

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

◆ m_pDecodingThread

cDecodingThread* cVideoStream::m_pDecodingThread

private

pointer to decoding thread

Definition at line 118 of file videostream.h.

Referenced by DecodingThreadHalt(), DecodingThreadResume(), ExitDecodingThread(), 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 cVideoStream(), and DecodeInput().

◆ m_pFilterThread

cFilterThread* cVideoStream::m_pFilterThread

private

pointer to deinterlace filter thread

Definition at line 96 of file videostream.h.

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

◆ m_pPar

AVCodecParameters* cVideoStream::m_pPar = nullptr

private

current codec parameters

Definition at line 111 of file videostream.h.

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

◆ m_pRender

cVideoRender* cVideoStream::m_pRender

private

video renderer

Definition at line 95 of file videostream.h.

Referenced by cVideoStream(), 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 114 of file videostream.h.

Referenced by DecodeInput(), and ResetTrickSpeedFramesSentCounter().

◆ m_timebase

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

private

current codec timebase

Definition at line 112 of file videostream.h.

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

◆ m_trickpkts

int cVideoStream::m_trickpkts

private

how many avpkt does the decoder need in trickspeed mode?

Definition at line 113 of file videostream.h.

Referenced by DecodeInput(), and Open().

◆ m_userDisabledDeinterlacer

bool cVideoStream::m_userDisabledDeinterlacer = false

private

set, if the user configured the deinterlace to be disabled

Definition at line 105 of file videostream.h.

Referenced by cVideoStream(), DisableDeint(), and RenderFrame().

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

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ cVideoStream()

◆ ~cVideoStream()

Member Function Documentation

◆ CancelFilterThread()

◆ ClearVdrCoreToDecoderQueue()

◆ CloseDecoder()

◆ DecodeInput()

◆ Decoder()

◆ DecodingThreadHalt()

◆ DecodingThreadResume()

◆ DisableDeint()

◆ Exit()

◆ ExitDecodingThread()

◆ Flush()

◆ FlushDecoder()

◆ GetAvPacketsFilled()

◆ GetCodecId()

◆ GetInputPts()

◆ GetInputPtsMs()

◆ GetVideoSize()

◆ HardwareQuirks()

◆ HasInputPts()

◆ IsDeinterlacerDeactivated()

◆ IsInputBufferFull()

◆ IsInterlaced()

◆ Open()

◆ PushAvPacket()

◆ RenderFrame()

◆ ResetFilterThreadNeededCheck()

◆ ResetTrickSpeedFramesSentCounter()

◆ SetDeinterlacerDeactivated()

◆ StartDecoder()

Member Data Documentation

◆ m_checkFilterThreadNeeded

◆ m_codecId

◆ m_decodingThreadName

◆ m_deinterlacerDeactivated

◆ m_filterThreadName

◆ m_frameOutput

◆ m_hardwareQuirks

◆ m_identifier

◆ m_inputPts

◆ m_interlaced

◆ m_newStream

◆ m_packets

◆ m_pDecoder

◆ m_pDecodingThread

◆ m_pDrmBufferQueue

◆ m_pFilterThread

◆ m_pPar

◆ m_pRender

◆ m_sentTrickPkts

◆ m_timebase

◆ m_trickpkts

◆ m_userDisabledDeinterlacer