#include <libmythtv/dummydecoder.h>

Inheritance diagram for DummyDecoder:

Collaboration diagram for DummyDecoder:

Public Member Functions
	DummyDecoder (MythPlayer *parent, const ProgramInfo &pginfo)

	~DummyDecoder () override=default

int	OpenFile (MythMediaBuffer *, bool, TestBufferVec &) override

bool	GetFrame (DecodeType, bool &) override
	Demux, preprocess and possibly decode a frame of video/audio. More...

bool	IsLastFrameKey (void) const override

QString	GetCodecDecoderName (void) const override

MythCodecID	GetVideoCodecID (void) const override

bool	SyncPositionMap (void) override
	Updates the position map used for skipping frames. More...

Public Member Functions inherited from DecoderBase
	DecoderBase (MythPlayer *parent, const ProgramInfo &pginfo)

virtual	~DecoderBase ()

void	SetRenderFormats (const VideoFrameTypes *RenderFormats)

virtual void	Reset (bool reset_video_data, bool seek_reset, bool reset_file)

virtual int	OpenFile (MythMediaBuffer *Buffer, bool novideo, TestBufferVec &testbuf)=0

virtual void	SetEofState (EofState eof)

virtual void	SetEof (bool eof)

EofState	GetEof (void)

void	SetSeekSnap (uint64_t snap)

uint64_t	GetSeekSnap (void) const

void	SetLiveTVMode (bool live)

void	SetProgramInfo (const ProgramInfo &pginfo)

virtual void	SetDisablePassThrough (bool disable)
	Disables AC3/DTS pass through. More...

virtual void	ForceSetupAudioStream (void)

virtual void	SetWatchingRecording (bool mode)

virtual bool	GetFrame (DecodeType Type, bool &Retry)=0
	Demux, preprocess and possibly decode a frame of video/audio. More...

MythPlayer *	GetPlayer ()

virtual int	GetNumChapters (void)

virtual int	GetCurrentChapter (long long)

virtual void	GetChapterTimes (QList< std::chrono::seconds > &)

virtual long long	GetChapter (int)

virtual bool	DoRewind (long long desiredFrame, bool discardFrames=true)

virtual bool	DoFastForward (long long desiredFrame, bool discardFrames=true)
	Skips ahead or rewinds to desiredFrame. More...

virtual void	SetIdrOnlyKeyframes (bool)

std::chrono::milliseconds	TranslatePositionFrameToMs (long long position, float fallback_framerate, const frm_dir_map_t &cutlist)

uint64_t	TranslatePositionMsToFrame (std::chrono::milliseconds dur_ms, float fallback_framerate, const frm_dir_map_t &cutlist)

float	GetVideoAspect (void) const

virtual std::chrono::milliseconds	NormalizeVideoTimecode (std::chrono::milliseconds timecode)

virtual bool	IsLastFrameKey (void) const =0

virtual double	GetFPS (void) const

uint	GetRawBitrate (void) const
	Returns the estimated bitrate if the video were played at normal speed. More...

virtual void	UpdateFramesPlayed (void)

long long	GetFramesRead (void) const

long long	GetFramesPlayed (void) const

void	SetFramesPlayed (long long newValue)

virtual QString	GetCodecDecoderName (void) const =0

virtual QString	GetRawEncodingType (void)

virtual MythCodecID	GetVideoCodecID (void) const =0

virtual void	ResetPosMap (void)

virtual bool	SyncPositionMap (void)
	Updates the position map used for skipping frames. More...

virtual bool	PosMapFromDb (void)

virtual bool	PosMapFromEnc (void)
	Queries encoder for position map data that has not been committed to the DB yet. More...

virtual bool	FindPosition (long long desired_value, bool search_adjusted, int &lower_bound, int &upper_bound)

uint64_t	SavePositionMapDelta (long long first_frame, long long last_frame)

virtual void	SeekReset (long long newkey, uint skipFrames, bool doFlush, bool discardFrames)

void	SetTranscoding (bool value)

bool	IsErrored () const

bool	HasPositionMap (void) const

void	SetWaitForChange (void)

bool	GetWaitForChange (void) const

void	SetReadAdjust (long long adjust)

void	SetDecodeAllSubtitles (bool DecodeAll)

virtual QStringList	GetTracks (uint Type)

virtual uint	GetTrackCount (uint Type)

virtual int	GetTrackLanguageIndex (uint Type, uint TrackNo)

virtual QString	GetTrackDesc (uint Type, uint TrackNo)

virtual int	SetTrack (uint Type, int TrackNo)

int	GetTrack (uint Type)

StreamInfo	GetTrackInfo (uint Type, uint TrackNo)

int	ChangeTrack (uint Type, int Dir)

int	NextTrack (uint Type)

virtual int	GetTeletextDecoderType (void) const

virtual QString	GetXDS (const QString &) const

virtual QByteArray	GetSubHeader (uint)

virtual void	GetAttachmentData (uint, QByteArray &, QByteArray &)

virtual bool	SetAudioByComponentTag (int)

virtual bool	SetVideoByComponentTag (int)

void	SaveTotalDuration (void)

void	ResetTotalDuration (void)

void	SaveTotalFrames (void)

void	TrackTotalDuration (bool track)

int	GetfpsMultiplier (void) const

MythCodecContext *	GetMythCodecContext (void)

Additional Inherited Members
Static Public Member Functions inherited from DecoderBase
static uint64_t	TranslatePositionAbsToRel (const frm_dir_map_t &deleteMap, uint64_t absPosition, const frm_pos_map_t &map=frm_pos_map_t(), float fallback_ratio=1.0)

static uint64_t	TranslatePositionRelToAbs (const frm_dir_map_t &deleteMap, uint64_t relPosition, const frm_pos_map_t &map=frm_pos_map_t(), float fallback_ratio=1.0)

static uint64_t	TranslatePosition (const frm_pos_map_t &map, long long key, float fallback_ratio)

static AVPixelFormat	GetBestVideoFormat (AVPixelFormat Formats, const VideoFrameTypes RenderFormats)
	Find a suitable frame format that is mutually acceptable to the decoder and render device. More...

Protected Member Functions inherited from DecoderBase
int	BestTrack (uint Type, bool forcedPreferred, int preferredLanguage=0)
	Determine the best track according to weights. More...

virtual int	AutoSelectTrack (uint Type)
	Select best track. More...

void	AutoSelectTracks (void)

void	ResetTracks (void)

void	FileChanged (void)

virtual bool	DoRewindSeek (long long desiredFrame)

virtual void	DoFastForwardSeek (long long desiredFrame, bool &needflush)
	Seeks to the keyframe just before the desiredFrame if exact seeks is enabled, or the frame just after it if exact seeks is not enabled. More...

long long	ConditionallyUpdatePosMap (long long desiredFrame)

long long	GetLastFrameInPosMap (void) const

unsigned long	GetPositionMapSize (void) const

long long	GetKey (const PosMapEntry &entry) const

Protected Attributes inherited from DecoderBase
MythPlayer *	m_parent {nullptr}

ProgramInfo *	m_playbackInfo {nullptr}

AudioPlayer *	m_audio {nullptr}

MythMediaBuffer *	m_ringBuffer {nullptr}

double	m_fps {29.97}

int	m_fpsMultiplier {1}

int	m_fpsSkip {0}

uint	m_bitrate {4000}

int	m_currentWidth {640}

int	m_currentHeight {480}

float	m_currentAspect {1.33333F}

long long	m_framesPlayed {0}

long long	m_framesRead {0}

uint64_t	m_frameCounter {0}

MythAVRational	m_totalDuration {0}

int	m_keyframeDist {-1}

long long	m_lastKey {0}

long long	m_indexOffset {0}

MythAVCopy	m_copyFrame

bool	m_nextDecodedFrameIsKeyFrame { false }

EofState	m_atEof {kEofStateNone}

bool	m_trackTotalDuration {false}

bool	m_exitAfterDecoded {false}

bool	m_transcoding {false}

bool	m_hasFullPositionMap {false}

bool	m_recordingHasPositionMap {false}

bool	m_posmapStarted {false}

MarkTypes	m_positionMapType {MARK_UNSET}

QRecursiveMutex	m_positionMapLock

std::vector< PosMapEntry >	m_positionMap

frm_pos_map_t	m_frameToDurMap

frm_pos_map_t	m_durToFrameMap

QDateTime	m_lastPositionMapUpdate

uint64_t	m_seekSnap {UINT64_MAX}

bool	m_dontSyncPositionMap {false}

bool	m_livetv {false}

bool	m_watchingRecording {false}

bool	m_hasKeyFrameAdjustTable {false}

bool	m_errored {false}

bool	m_waitingForChange {false}

bool	m_justAfterChange {false}

long long	m_readAdjust {0}

int	m_videoRotation {0}

uint	m_stereo3D {0}

QRecursiveMutex	m_trackLock

bool	m_decodeAllSubtitles { false }

std::array< int, kTrackTypeCount >	m_currentTrack {}

std::array< sinfo_vec_t, kTrackTypeCount >	m_tracks

std::array< StreamInfo, kTrackTypeCount >	m_wantedTrack

std::array< StreamInfo, kTrackTypeCount >	m_selectedTrack

std::array< StreamInfo, kTrackTypeCount >	m_selectedForcedTrack

std::vector< int >	m_languagePreference
	language preferences for auto-selection of streams More...

MythCodecContext *	m_mythCodecCtx { nullptr }

MythVideoProfile	m_videoDisplayProfile

const VideoFrameTypes *	m_renderFormats { &MythVideoFrame::kDefaultRenderFormats }

Detailed Description

Definition at line 9 of file dummydecoder.h.

Constructor & Destructor Documentation

◆ DummyDecoder()

DummyDecoder::DummyDecoder	(	MythPlayer *	parent,
		const ProgramInfo &	pginfo
	)

inline

Definition at line 12 of file dummydecoder.h.

◆ ~DummyDecoder()

DummyDecoder::~DummyDecoder ( )

overridedefault

Member Function Documentation

◆ GetCodecDecoderName()

QString DummyDecoder::GetCodecDecoderName ( void ) const

inlineoverridevirtual

Implements DecoderBase.

Definition at line 22 of file dummydecoder.h.

◆ GetFrame()

bool DummyDecoder::GetFrame	(	DecodeType	Type,
		bool &	Retry
	)

inlineoverridevirtual

Demux, preprocess and possibly decode a frame of video/audio.

Implements DecoderBase.

Definition at line 19 of file dummydecoder.h.

◆ GetVideoCodecID()

MythCodecID DummyDecoder::GetVideoCodecID ( void ) const

inlineoverridevirtual

Implements DecoderBase.

Definition at line 23 of file dummydecoder.h.

◆ IsLastFrameKey()

bool DummyDecoder::IsLastFrameKey ( void ) const

inlineoverridevirtual

Implements DecoderBase.

Definition at line 21 of file dummydecoder.h.

◆ OpenFile()

int DummyDecoder::OpenFile	(	MythMediaBuffer *	,
		bool	,
		TestBufferVec &
	)

inlineoverridevirtual

Implements DecoderBase.

Definition at line 17 of file dummydecoder.h.

◆ SyncPositionMap()

bool DummyDecoder::SyncPositionMap ( void )

inlineoverridevirtual

Updates the position map used for skipping frames.

There are different sources for position maps, depending on where we are getting the stream from.

positionmap sources: live tv:

remote encoder
stream parsing decide keyframedist based on samples from remote encoder

watching recording:

initial fill from db
incremental from remote encoder, until it finishes recording
then db again (which should be the final time)
stream parsing decide keyframedist based on which table in db

watching prerecorded:

initial fill from db is all that's needed

Reimplemented from DecoderBase.

Definition at line 24 of file dummydecoder.h.

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

mythtv/libs/libmythtv/dummydecoder.h

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ DummyDecoder()

◆ ~DummyDecoder()

Member Function Documentation

◆ GetCodecDecoderName()

◆ GetFrame()

◆ GetVideoCodecID()

◆ IsLastFrameKey()

◆ OpenFile()

◆ SyncPositionMap()