A decoder for media files. More...

#include <libmythtv/decoders/avformatdecoder.h>

Inheritance diagram for AvFormatDecoder:

Collaboration diagram for AvFormatDecoder:

Public Member Functions
	AvFormatDecoder (MythPlayer *parent, const ProgramInfo &pginfo, PlayerFlags flags)

	~AvFormatDecoder () override

	AvFormatDecoder (const AvFormatDecoder &)=delete

AvFormatDecoder &	operator= (const AvFormatDecoder &)=delete

void	SetEof (bool eof) override

MythCodecMap *	CodecMap (void)

void	CloseCodecs ()

void	CloseContext ()

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

int	OpenFile (MythMediaBuffer *Buffer, bool novideo, TestBufferVec &testbuf) override
	Open our file and set up or audio and video parameters. More...

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

bool	IsLastFrameKey (void) const override

QString	GetCodecDecoderName (void) const override

QString	GetRawEncodingType (void) override

MythCodecID	GetVideoCodecID (void) const override

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

void	ForceSetupAudioStream (void) override

void	AddTextData (unsigned char *buf, int len, int64_t timecode, char type)

QString	GetTrackDesc (uint Type, uint TrackNo) override

int	SetTrack (uint Type, int TrackNo) override

int	ScanStreams (bool novideo)

int	GetNumChapters () override

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

int	GetCurrentChapter (long long framesPlayed) override

long long	GetChapter (int chapter) override

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

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

void	SetIdrOnlyKeyframes (bool value) override

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

virtual std::chrono::milliseconds	NormalizeVideoTimecode (AVStream *st, std::chrono::milliseconds timecode)

int	GetTeletextDecoderType (void) const override

QString	GetXDS (const QString &Key) const override

QByteArray	GetSubHeader (uint TrackNo) override

void	GetAttachmentData (uint TrackNo, QByteArray &Filename, QByteArray &Data) override

bool	SetAudioByComponentTag (int Tag) override

bool	SetVideoByComponentTag (int Tag) override

virtual int	GetTeletextLanguage (uint Index)
	Returns TeleText language. More...

virtual int	GetSubtitleLanguage (uint, uint StreamIndex)
	Returns DVD Subtitle language. More...

virtual int	GetCaptionLanguage (TrackType TrackType, int ServiceNum)
	Return ATSC Closed Caption Language. More...

virtual int	GetAudioLanguage (uint AudioIndex, uint StreamIndex)

virtual AudioTrackType	GetAudioTrackType (uint StreamIndex)

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

virtual	~DecoderBase ()

void	SetRenderFormats (const VideoFrameTypes *RenderFormats)

virtual void	SetEofState (EofState 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	SetWatchingRecording (bool mode)

MythPlayer *	GetPlayer ()

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 double	GetFPS (void) const

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

long long	GetFramesRead (void) const

long long	GetFramesPlayed (void) const

void	SetFramesPlayed (long long newValue)

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)

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)

int	GetTrack (uint Type)

StreamInfo	GetTrackInfo (uint Type, uint TrackNo)

int	ChangeTrack (uint Type, int Dir)

int	NextTrack (uint Type)

void	SaveTotalDuration (void)

void	ResetTotalDuration (void)

void	SaveTotalFrames (void)

void	TrackTotalDuration (bool track)

int	GetfpsMultiplier (void) const

MythCodecContext *	GetMythCodecContext (void)

Static Public Member Functions
static bool	CanHandle (TestBufferVec &testbuf, const QString &filename)
	Perform an av_probe_input_format on the passed data to see if we can decode it with this class. More...

static int	GetMaxReferenceFrames (AVCodecContext *Context)

static void	streams_changed (void *data, int avprogram_id)

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
int	AutoSelectTrack (uint type) override
	Select best track. More...

void	ScanATSCCaptionStreams (int av_index)

void	UpdateATSCCaptionTracks (void)

void	UpdateCaptionTracksFromStreams (bool check_608, bool check_708)

void	ScanTeletextCaptions (int av_index)

void	ScanRawTextCaptions (int av_stream_index)

void	ScanDSMCCStreams (AVBufferRef *pmt_section)
	Check to see whether there is a Network Boot Ifo sub-descriptor in the PMT which requires the MHEG application to reboot. More...

int	AutoSelectAudioTrack (void)
	Selects the best audio track. More...

int	filter_max_ch (const AVFormatContext *ic, const sinfo_vec_t &tracks, const std::vector< int > &fs, enum AVCodecID codecId=AV_CODEC_ID_NONE, int profile=-1)

int	selectBestAudioTrack (int lang_key, const std::vector< int > &ftype)

void	DecodeCCx08 (const uint8_t *buf, uint buf_size)

void	InitVideoCodec (AVStream stream, AVCodecContext codecContext, bool selectedStream=false)

void	MpegPreProcessPkt (AVCodecContext codecContext, AVStream stream, AVPacket *pkt)
	Preprocess a packet, setting the video parms if necessary. More...

int	H264PreProcessPkt (AVCodecContext codecContext, AVStream stream, AVPacket *pkt)

bool	PreProcessVideoPacket (AVCodecContext codecContext, AVStream stream, AVPacket *pkt)

virtual bool	ProcessVideoPacket (AVCodecContext codecContext, AVStream stream, AVPacket *pkt, bool &Retry)

virtual bool	ProcessVideoFrame (AVCodecContext codecContext, AVStream Stream, AVFrame *AvFrame)

bool	ProcessAudioPacket (AVCodecContext codecContext, AVStream stream, AVPacket *pkt, DecodeType decodetype)

bool	ProcessSubtitlePacket (AVCodecContext codecContext, AVStream stream, AVPacket *pkt)

bool	ProcessRawTextPacket (AVPacket *Packet)

virtual bool	ProcessDataPacket (AVStream curstream, AVPacket pkt, DecodeType decodetype)

void	ProcessVBIDataPacket (const AVStream stream, const AVPacket pkt)
	Process ivtv proprietary embedded vertical blanking interval captions. More...

void	ProcessDVBDataPacket (const AVStream stream, const AVPacket pkt)
	Process DVB Teletext. More...

void	ProcessDSMCCPacket (const AVStream stream, const AVPacket pkt)
	Process DSMCC object carousel packet. More...

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

bool	DecoderWillDownmix (const AVCodecContext *ctx)

bool	DoPassThrough (const AVCodecParameters *par, bool withProfile=true)

bool	SetupAudioStream (void)
	Reinitializes audio if it needs to be reinitialized. More...

void	SetupAudioStreamSubIndexes (int streamIndex)
	Reacts to DUAL/STEREO changes on the fly and fix streams. More...

void	RemoveAudioStreams ()
	remove audio streams from the context used by dvd code during title transitions to remove stale audio streams More...

void	HandleGopStart (AVPacket *pkt, bool can_reliably_parse_keyframes)
	Update our position map, keyframe distance, and the like. More...

bool	GenerateDummyVideoFrames (void)

bool	HasVideo ()

float	GetVideoFrameRate (AVStream Stream, AVCodecContext Context, bool Sanitise=false)

bool	OpenAVCodec (AVCodecContext avctx, const AVCodec codec)

void	UpdateFramesPlayed (void) override

bool	DoRewindSeek (long long desiredFrame) override

void	DoFastForwardSeek (long long desiredFrame, bool &needflush) override
	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...

virtual void	StreamChangeCheck (void)

virtual void	PostProcessTracks (void)

virtual bool	IsValidStream (int)

int	DecodeAudio (AVCodecContext ctx, uint8_t buffer, int &data_size, AVPacket *pkt)

virtual int	ReadPacket (AVFormatContext ctx, AVPacket pkt, bool &storePacket)

bool	FlagIsSet (PlayerFlags arg)

int	autoSelectVideoTrack (int &scanerror)

void	remove_tracks_not_in_same_AVProgram (int stream_index)

int	get_current_AVStream_index (TrackType type)

AVProgram *	get_current_AVProgram ()

bool	do_av_seek (long long desiredFrame, bool discardFrames, int flags)

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

void	AutoSelectTracks (void)

void	ResetTracks (void)

void	FileChanged (void)

long long	ConditionallyUpdatePosMap (long long desiredFrame)

long long	GetLastFrameInPosMap (void) const

unsigned long	GetPositionMapSize (void) const

long long	GetKey (const PosMapEntry &entry) const

Static Protected Member Functions
static void	av_update_stream_timings_video (AVFormatContext *ic)

Protected Attributes
bool	m_isDbIgnored

AVCParser *	m_avcParser {nullptr}

AVFormatContext *	m_ic {nullptr}

MythCodecMap	m_codecMap

int	m_frameDecoded {0}

MythVideoFrame *	m_decodedVideoFrame {nullptr}

MythAVFormatBuffer *	m_avfRingBuffer {nullptr}

struct SwsContext *	m_swsCtx {nullptr}

bool	m_directRendering {false}

bool	m_gopSet {false}

bool	m_seenGop {false}
	A flag to indicate that we've seen a GOP frame. Used in junction with seq_count. More...

int	m_seqCount {0}
	A counter used to determine if we need to force a call to HandleGopStart. More...

QList< AVPacket * >	m_storedPackets

int	m_prevGopPos {0}

bool	m_gotVideoFrame {false}

bool	m_hasVideo {false}

bool	m_needDummyVideoFrames {false}

bool	m_skipAudio {false}

bool	m_allowedQuit {false}

uint32_t	m_startCodeState {0xffffffff}

std::chrono::milliseconds	m_lastVPts {0ms}

std::chrono::milliseconds	m_lastAPts {0ms}

std::chrono::microseconds	m_lastCcPtsu {0ms}

std::chrono::milliseconds	m_firstVPts {0ms}

bool	m_firstVPtsInuse {false}

PlayerFlags	m_playerFlags

MythCodecID	m_videoCodecId {kCodec_NONE}

int	m_maxKeyframeDist {-1}

int	m_averrorCount {0}

CC608Decoder *	m_ccd608 {nullptr}

CC708Decoder *	m_ccd708 {nullptr}

TeletextDecoder *	m_ttd {nullptr}

std::array< bool, 68 >	m_ccX08InPmt {}
	Lookup table for whether a stream was seen in the PMT entries 0-3 correspond to CEA-608 CC1 through CC4, while entries 4-67 corresport to CEA-708 streams 0 through 64. More...

std::array< bool, 68 >	m_ccX08InTracks {}
	Lookup table for whether a stream is represented in the UI entries 0-3 correspond to CEA-608 CC1 through CC4, while entries 4-67 corresport to CEA-708 streams 0 through 64. More...

QList< StreamInfo >	m_pmtTracks
	StreamInfo for 608 and 708 Captions seen in the PMT descriptor. More...

QList< TrackType >	m_pmtTrackTypes
	TrackType (608 or 708) for Captions seen in the PMT descriptor. More...

QList< StreamInfo >	m_streamTracks
	StreamInfo for 608 and 708 Captions seen in the caption stream itself but not seen in the PMT. More...

QList< TrackType >	m_streamTrackTypes
	TrackType (608 or 708) for Captions seen in the caption stream itself but not seen in the PMT. More...

InteractiveTV *	m_itv {nullptr}
	MHEG/MHP decoder. More...

uint8_t *	m_audioSamples {nullptr}

bool	m_disablePassthru {false}

AudioInfo	m_audioIn

AudioInfo	m_audioOut

bool	m_processFrames {true}

bool	m_streamsChanged { false }

bool	m_resetHardwareDecoders { false }

std::chrono::milliseconds	m_audioReadAhead {100ms}

QRecursiveMutex	m_avCodecLock

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 }

Friends
int	get_avf_buffer (struct AVCodecContext c, AVFrame pic, int flags)

Detailed Description

A decoder for media files.

Definition at line 79 of file avformatdecoder.h.

Constructor & Destructor Documentation

◆ AvFormatDecoder() [1/2]

AvFormatDecoder::AvFormatDecoder	(	MythPlayer *	parent,
		const ProgramInfo &	pginfo,
		PlayerFlags	flags
	)

Definition at line 362 of file avformatdecoder.cpp.

◆ ~AvFormatDecoder()

AvFormatDecoder::~AvFormatDecoder ( )

override

Definition at line 392 of file avformatdecoder.cpp.

◆ AvFormatDecoder() [2/2]

AvFormatDecoder::AvFormatDecoder ( const AvFormatDecoder & )

delete

Member Function Documentation

◆ operator=()

AvFormatDecoder& AvFormatDecoder::operator= ( const AvFormatDecoder & )

delete

◆ SetEof()

void AvFormatDecoder::SetEof ( bool eof )

overridevirtual

Reimplemented from DecoderBase.

Definition at line 794 of file avformatdecoder.cpp.

Referenced by GetFrame().

◆ CodecMap()

MythCodecMap * AvFormatDecoder::CodecMap ( void )

Definition at line 423 of file avformatdecoder.cpp.

Referenced by MythMediaCodecContext::GetBestSupportedCodec(), and MythMMALContext::GetSupportedCodec().

◆ CloseCodecs()

void AvFormatDecoder::CloseCodecs ( )

Definition at line 428 of file avformatdecoder.cpp.

Referenced by CloseContext(), and MythBDDecoder::StreamChangeCheck().

◆ CloseContext()

void AvFormatDecoder::CloseContext ( )

Definition at line 442 of file avformatdecoder.cpp.

Referenced by OpenFile(), and ~AvFormatDecoder().

◆ Reset()

void AvFormatDecoder::Reset	(	bool	reset_video_data,
		bool	seek_reset,
		bool	reset_file
	)

overridevirtual

Reimplemented from DecoderBase.

Reimplemented in MythDVDDecoder.

Definition at line 806 of file avformatdecoder.cpp.

Referenced by OpenFile(), MythBDDecoder::Reset(), and MythDVDDecoder::Reset().

◆ CanHandle()

bool AvFormatDecoder::CanHandle	(	TestBufferVec &	testbuf,
		const QString &	filename
	)

static

Perform an av_probe_input_format on the passed data to see if we can decode it with this class.

Definition at line 825 of file avformatdecoder.cpp.

Referenced by MythBDPlayer::CreateDecoder(), MythDVDPlayer::CreateDecoder(), and MythPlayer::CreateDecoder().

◆ OpenFile()

int AvFormatDecoder::OpenFile	(	MythMediaBuffer *	Buffer,
		bool	novideo,
		TestBufferVec &	testbuf
	)

overridevirtual

Open our file and set up or audio and video parameters.

OpenFile opens a ringbuffer for playback.

OpenFile deletes any existing context then use testbuf to guess at the stream type. It then calls ScanStreams to find any valid streams to decode. If possible a position map is also built for quick skipping.

Parameters

rbuffer	pointer to a valid ringuffer.
novideo	if true then no video is sought in ScanSreams.
testbuf	Temporary buffer for probing the input.
testbufsize	The size of the test buffer. The minimum of this value or kDecoderProbeBufferSize will be used.

Implements DecoderBase.

Definition at line 892 of file avformatdecoder.cpp.

◆ GetFrame()

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

overridevirtual

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

Implements DecoderBase.

Reimplemented in MythDVDDecoder.

Definition at line 4546 of file avformatdecoder.cpp.

Referenced by MythDVDDecoder::GetFrame(), and SeekReset().

◆ IsLastFrameKey()

bool AvFormatDecoder::IsLastFrameKey ( void ) const

inlineoverridevirtual

Implements DecoderBase.

Definition at line 109 of file avformatdecoder.h.

◆ GetCodecDecoderName()

QString AvFormatDecoder::GetCodecDecoderName ( void ) const

overridevirtual

Implements DecoderBase.

Definition at line 4917 of file avformatdecoder.cpp.

Referenced by autoSelectVideoTrack().

◆ GetRawEncodingType()

QString AvFormatDecoder::GetRawEncodingType ( void )

overridevirtual

Reimplemented from DecoderBase.

Definition at line 4922 of file avformatdecoder.cpp.

◆ GetVideoCodecID()

MythCodecID AvFormatDecoder::GetVideoCodecID ( void ) const

inlineoverridevirtual

Implements DecoderBase.

Definition at line 113 of file avformatdecoder.h.

Referenced by MythMMALContext::GetBuffer().

◆ SetDisablePassThrough()

void AvFormatDecoder::SetDisablePassThrough ( bool disable )

overridevirtual

Disables AC3/DTS pass through.

Reimplemented from DecoderBase.

Definition at line 4930 of file avformatdecoder.cpp.

◆ ForceSetupAudioStream()

void AvFormatDecoder::ForceSetupAudioStream ( void )

overridevirtual

Reimplemented from DecoderBase.

Definition at line 4949 of file avformatdecoder.cpp.

Referenced by SetDisablePassThrough().

◆ AddTextData()

void AvFormatDecoder::AddTextData	(	unsigned char *	buf,
		int	len,
		int64_t	timecode,
		char	type
	)

◆ GetTrackDesc()

QString AvFormatDecoder::GetTrackDesc	(	uint	Type,
		uint	TrackNo
	)

overridevirtual

Reimplemented from DecoderBase.

Definition at line 3870 of file avformatdecoder.cpp.

◆ SetTrack()

int AvFormatDecoder::SetTrack	(	uint	Type,
		int	TrackNo
	)

overridevirtual

Reimplemented from DecoderBase.

Definition at line 3858 of file avformatdecoder.cpp.

Referenced by MythDVDDecoder::PostProcessTracks(), and SetAudioByComponentTag().

◆ ScanStreams()

int AvFormatDecoder::ScanStreams ( bool novideo )

Definition at line 2090 of file avformatdecoder.cpp.

Referenced by OpenFile(), MythBDDecoder::StreamChangeCheck(), MythDVDDecoder::StreamChangeCheck(), and StreamChangeCheck().

◆ GetNumChapters()

int AvFormatDecoder::GetNumChapters ( )

overridevirtual

Reimplemented from DecoderBase.

Definition at line 519 of file avformatdecoder.cpp.

Referenced by GetChapter(), GetChapterTimes(), and GetCurrentChapter().

◆ GetChapterTimes()

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

overridevirtual

Reimplemented from DecoderBase.

Definition at line 526 of file avformatdecoder.cpp.

◆ GetCurrentChapter()

int AvFormatDecoder::GetCurrentChapter ( long long framesPlayed )

overridevirtual

Reimplemented from DecoderBase.

Definition at line 543 of file avformatdecoder.cpp.

◆ GetChapter()

long long AvFormatDecoder::GetChapter ( int chapter )

overridevirtual

Reimplemented from DecoderBase.

Definition at line 567 of file avformatdecoder.cpp.

◆ DoRewind()

bool AvFormatDecoder::DoRewind	(	long long	desiredFrame,
		bool	discardFrames = `true`
	)

overridevirtual

Reimplemented from DecoderBase.

Definition at line 583 of file avformatdecoder.cpp.

◆ DoFastForward()

bool AvFormatDecoder::DoFastForward	(	long long	desiredFrame,
		bool	discardFrames = `true`
	)

overridevirtual

Skips ahead or rewinds to desiredFrame.

If discardFrames is true and cached frames are released and playback continues at the desiredFrame, if it is not any interviening frames between the last frame already in the buffer and the desiredFrame are released, but none of the frames decoded at the time this is called are released.

Reimplemented from DecoderBase.

Definition at line 595 of file avformatdecoder.cpp.

◆ SetIdrOnlyKeyframes()

void AvFormatDecoder::SetIdrOnlyKeyframes ( bool value )

inlineoverridevirtual

Reimplemented from DecoderBase.

Definition at line 130 of file avformatdecoder.h.

Referenced by AvFormatDecoder().

◆ NormalizeVideoTimecode() [1/2]

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

overridevirtual

Reimplemented from DecoderBase.

Definition at line 463 of file avformatdecoder.cpp.

Referenced by ProcessVideoFrame().

◆ NormalizeVideoTimecode() [2/2]

std::chrono::milliseconds AvFormatDecoder::NormalizeVideoTimecode	(	AVStream *	st,
		std::chrono::milliseconds	timecode
	)

virtual

Definition at line 497 of file avformatdecoder.cpp.

◆ GetTeletextDecoderType()

int AvFormatDecoder::GetTeletextDecoderType ( void ) const

overridevirtual

Reimplemented from DecoderBase.

Definition at line 3947 of file avformatdecoder.cpp.

◆ GetXDS()

QString AvFormatDecoder::GetXDS ( const QString & Key ) const

overridevirtual

Reimplemented from DecoderBase.

Definition at line 3952 of file avformatdecoder.cpp.

◆ GetSubHeader()

QByteArray AvFormatDecoder::GetSubHeader ( uint TrackNo )

overridevirtual

Reimplemented from DecoderBase.

Definition at line 3957 of file avformatdecoder.cpp.

◆ GetAttachmentData()

void AvFormatDecoder::GetAttachmentData	(	uint	TrackNo,
		QByteArray &	Filename,
		QByteArray &	Data
	)

overridevirtual

Reimplemented from DecoderBase.

Definition at line 3969 of file avformatdecoder.cpp.

◆ SetAudioByComponentTag()

bool AvFormatDecoder::SetAudioByComponentTag ( int Tag )

overridevirtual

Reimplemented from DecoderBase.

Definition at line 3983 of file avformatdecoder.cpp.

Referenced by OpenFile().

◆ SetVideoByComponentTag()

bool AvFormatDecoder::SetVideoByComponentTag ( int Tag )

overridevirtual

Reimplemented from DecoderBase.

Definition at line 3996 of file avformatdecoder.cpp.

Referenced by OpenFile().

◆ GetTeletextLanguage()

int AvFormatDecoder::GetTeletextLanguage ( uint Index )

virtual

Returns TeleText language.

Definition at line 2478 of file avformatdecoder.cpp.

Referenced by MythCCExtractorPlayer::ProcessTeletext().

◆ GetSubtitleLanguage()

int AvFormatDecoder::GetSubtitleLanguage	(	uint	,
		uint	StreamIndex
	)

virtual

Returns DVD Subtitle language.

Reimplemented in MythBDDecoder.

Definition at line 2488 of file avformatdecoder.cpp.

Referenced by GetAudioLanguage(), MythCCExtractorPlayer::ProcessDVBSubtitles(), and ScanStreams().

◆ GetCaptionLanguage()

int AvFormatDecoder::GetCaptionLanguage	(	TrackType	TrackType,
		int	ServiceNum
	)

virtual

Return ATSC Closed Caption Language.

Definition at line 2495 of file avformatdecoder.cpp.

Referenced by MythCCExtractorPlayer::Process608Captions(), MythCCExtractorPlayer::Process708Captions(), and UpdateCaptionTracksFromStreams().

◆ GetAudioLanguage()

int AvFormatDecoder::GetAudioLanguage	(	uint	AudioIndex,
		uint	StreamIndex
	)

virtual

Reimplemented in MythDVDDecoder, and MythBDDecoder.

Definition at line 2525 of file avformatdecoder.cpp.

Referenced by ScanStreams().

◆ GetAudioTrackType()

AudioTrackType AvFormatDecoder::GetAudioTrackType ( uint StreamIndex )

virtual

Reimplemented in MythDVDDecoder.

Definition at line 2530 of file avformatdecoder.cpp.

Referenced by MythDVDDecoder::GetAudioTrackType(), and ScanStreams().

◆ GetMaxReferenceFrames()

int AvFormatDecoder::GetMaxReferenceFrames ( AVCodecContext * Context )

static

Definition at line 1336 of file avformatdecoder.cpp.

Referenced by MythVAAPIContext::InitialiseContext(), MythVAAPIContext::InitialiseContext2(), and InitVideoCodec().

◆ streams_changed()

void AvFormatDecoder::streams_changed	(	void *	data,
		int	avprogram_id
	)

static

Definition at line 852 of file avformatdecoder.cpp.

Referenced by HandleStreamChange().

◆ AutoSelectTrack()

int AvFormatDecoder::AutoSelectTrack ( uint Type )

overrideprotectedvirtual

Select best track.

In case there's only one track available, always choose it.

If there is a user selected track we try to find it.

If we can't find the user selected track we try to picked according to the ISO639Language[0..] settings.

In case there are no ISOLanguage[0..] settings, or no preferred language is found, the first found track stream is chosen

Returns: track if a track was selected, -1 otherwise

Reimplemented from DecoderBase.

Definition at line 4016 of file avformatdecoder.cpp.

Referenced by ProcessVBIDataPacket(), ScanStreams(), and UpdateATSCCaptionTracks().

◆ ScanATSCCaptionStreams()

void AvFormatDecoder::ScanATSCCaptionStreams ( int av_index )

protected

Definition at line 1575 of file avformatdecoder.cpp.

Referenced by autoSelectVideoTrack(), and UpdateCaptionTracksFromStreams().

◆ UpdateATSCCaptionTracks()

void AvFormatDecoder::UpdateATSCCaptionTracks ( void )

protected

Definition at line 1651 of file avformatdecoder.cpp.

Referenced by autoSelectVideoTrack(), and UpdateCaptionTracksFromStreams().

◆ UpdateCaptionTracksFromStreams()

void AvFormatDecoder::UpdateCaptionTracksFromStreams	(	bool	check_608,
		bool	check_708
	)

protected

Definition at line 2799 of file avformatdecoder.cpp.

Referenced by DecodeCCx08(), and ProcessVBIDataPacket().

◆ ScanTeletextCaptions()

void AvFormatDecoder::ScanTeletextCaptions ( int av_index )

protected

Definition at line 1720 of file avformatdecoder.cpp.

Referenced by ScanStreams().

◆ ScanRawTextCaptions()

void AvFormatDecoder::ScanRawTextCaptions ( int av_stream_index )

protected

Definition at line 1777 of file avformatdecoder.cpp.

Referenced by ScanStreams().

◆ ScanDSMCCStreams()

void AvFormatDecoder::ScanDSMCCStreams ( AVBufferRef * pmt_section )

protected

Check to see whether there is a Network Boot Ifo sub-descriptor in the PMT which requires the MHEG application to reboot.

Definition at line 1800 of file avformatdecoder.cpp.

Referenced by ScanStreams().

◆ AutoSelectAudioTrack()

int AvFormatDecoder::AutoSelectAudioTrack ( void )

protected

Selects the best audio track.

It is primarily needed for DVB recordings

This function will select the best audio track available using the following criteria, in order of decreasing preference:

1) The stream last selected by the user, which is recalled as the Nth stream in the preferred language or the Nth substream when audio is in dual language format (each channel contains a different language track) If it cannot be located we attempt to find a stream in the same language.

2) If we cannot reselect the last user selected stream, then for each preferred language from most preferred to least preferred, we try to find a new stream based on the algorithm below.

3) If we cannot select a stream in a preferred language we try to select a stream irrespective of language based on the algorithm below.

When searching for a new stream (ie. options 2 and 3 above), the following search is carried out in order:

i) If DTS passthrough is enabled then the DTS track with the greatest number of audio channels is selected (the first will be chosen if there are several the same). If DTS passthrough is not enabled this step will be skipped because internal DTS decoding is not currently supported.

ii) If no DTS track is chosen, the AC3 track with the greatest number of audio channels is selected (the first will be chosen if there are several the same). Internal decoding of AC3 is supported, so this will be used irrespective of whether AC3 passthrough is enabled.

iii) Lastly the track with the greatest number of audio channels irrespective of type will be selected.

Returns: track if a track was selected, -1 otherwise

Definition at line 4172 of file avformatdecoder.cpp.

Referenced by AutoSelectTrack(), and ProcessAudioPacket().

◆ filter_max_ch()

int AvFormatDecoder::filter_max_ch	(	const AVFormatContext *	ic,
		const sinfo_vec_t &	tracks,
		const std::vector< int > &	fs,
		enum AVCodecID	codecId = `AV_CODEC_ID_NONE`,
		int	profile = `-1`
	)

protected

Definition at line 4054 of file avformatdecoder.cpp.

Referenced by selectBestAudioTrack().

◆ selectBestAudioTrack()

int AvFormatDecoder::selectBestAudioTrack	(	int	lang_key,
		const std::vector< int > &	ftype
	)

protected

Definition at line 4084 of file avformatdecoder.cpp.

Referenced by AutoSelectAudioTrack().

◆ DecodeCCx08()

void AvFormatDecoder::DecodeCCx08	(	const uint8_t *	buf,
		uint	buf_size
	)

protected

Definition at line 2758 of file avformatdecoder.cpp.

Referenced by ProcessVideoFrame().

◆ InitVideoCodec()

void AvFormatDecoder::InitVideoCodec	(	AVStream *	stream,
		AVCodecContext *	codecContext,
		bool	selectedStream = `false`
	)

protected

Definition at line 1370 of file avformatdecoder.cpp.

Referenced by autoSelectVideoTrack().

◆ MpegPreProcessPkt()

void AvFormatDecoder::MpegPreProcessPkt	(	AVCodecContext *	codecContext,
		AVStream *	stream,
		AVPacket *	pkt
	)

protected

Preprocess a packet, setting the video parms if necessary.

Definition at line 2988 of file avformatdecoder.cpp.

Referenced by PreProcessVideoPacket().

◆ H264PreProcessPkt()

int AvFormatDecoder::H264PreProcessPkt	(	AVCodecContext *	codecContext,
		AVStream *	stream,
		AVPacket *	pkt
	)

protected

Definition at line 3082 of file avformatdecoder.cpp.

Referenced by PreProcessVideoPacket().

◆ PreProcessVideoPacket()

bool AvFormatDecoder::PreProcessVideoPacket	(	AVCodecContext *	codecContext,
		AVStream *	stream,
		AVPacket *	pkt
	)

protected

Definition at line 3184 of file avformatdecoder.cpp.

Referenced by GetFrame().

◆ ProcessVideoPacket()

bool AvFormatDecoder::ProcessVideoPacket	(	AVCodecContext *	codecContext,
		AVStream *	stream,
		AVPacket *	pkt,
		bool &	Retry
	)

protectedvirtual

Reimplemented in MythDVDDecoder.

Definition at line 3242 of file avformatdecoder.cpp.

Referenced by GetFrame(), and MythDVDDecoder::ProcessVideoPacket().

◆ ProcessVideoFrame()

bool AvFormatDecoder::ProcessVideoFrame	(	AVCodecContext *	codecContext,
		AVStream *	Stream,
		AVFrame *	AvFrame
	)

protectedvirtual

Reimplemented in MythDVDDecoder.

Definition at line 3356 of file avformatdecoder.cpp.

Referenced by MythDVDDecoder::ProcessVideoFrame(), and ProcessVideoPacket().

◆ ProcessAudioPacket()

bool AvFormatDecoder::ProcessAudioPacket	(	AVCodecContext *	codecContext,
		AVStream *	stream,
		AVPacket *	pkt,
		DecodeType	decodetype
	)

protected

Definition at line 4352 of file avformatdecoder.cpp.

Referenced by GetFrame().

◆ ProcessSubtitlePacket()

bool AvFormatDecoder::ProcessSubtitlePacket	(	AVCodecContext *	codecContext,
		AVStream *	stream,
		AVPacket *	pkt
	)

protected

Definition at line 3723 of file avformatdecoder.cpp.

Referenced by GetFrame().

◆ ProcessRawTextPacket()

bool AvFormatDecoder::ProcessRawTextPacket ( AVPacket * Packet )

protected

Definition at line 3806 of file avformatdecoder.cpp.

Referenced by GetFrame().

◆ ProcessDataPacket()

bool AvFormatDecoder::ProcessDataPacket	(	AVStream *	curstream,
		AVPacket *	pkt,
		DecodeType	decodetype
	)

protectedvirtual

Reimplemented in MythDVDDecoder.

Definition at line 3827 of file avformatdecoder.cpp.

Referenced by GetFrame(), and MythDVDDecoder::ProcessDataPacket().

◆ ProcessVBIDataPacket()

void AvFormatDecoder::ProcessVBIDataPacket	(	const AVStream *	stream,
		const AVPacket *	pkt
	)

protected

Process ivtv proprietary embedded vertical blanking interval captions.

See also: CC608Decoder, TeletextDecoder

Definition at line 3543 of file avformatdecoder.cpp.

Referenced by ProcessDataPacket().

◆ ProcessDVBDataPacket()

void AvFormatDecoder::ProcessDVBDataPacket	(	const AVStream *	stream,
		const AVPacket *	pkt
	)

protected

Process DVB Teletext.

See also: TeletextDecoder

Definition at line 3628 of file avformatdecoder.cpp.

Referenced by GetFrame(), and ProcessDataPacket().

◆ ProcessDSMCCPacket()

void AvFormatDecoder::ProcessDSMCCPacket	(	const AVStream *	stream,
		const AVPacket *	pkt
	)

protected

Process DSMCC object carousel packet.

Definition at line 3685 of file avformatdecoder.cpp.

Referenced by ProcessDataPacket().

◆ SeekReset()

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

overrideprotectedvirtual

Reimplemented from DecoderBase.

Definition at line 667 of file avformatdecoder.cpp.

Referenced by do_av_seek(), DoFastForward(), MythBDDecoder::Reset(), MythDVDDecoder::Reset(), and Reset().

◆ DecoderWillDownmix()

bool AvFormatDecoder::DecoderWillDownmix ( const AVCodecContext * ctx )

inlineprotected

Definition at line 4955 of file avformatdecoder.cpp.

Referenced by ProcessAudioPacket(), and SetupAudioStream().

◆ DoPassThrough()

bool AvFormatDecoder::DoPassThrough	(	const AVCodecParameters *	par,
		bool	withProfile = `true`
	)

protected

Definition at line 4978 of file avformatdecoder.cpp.

Referenced by AutoSelectAudioTrack(), filter_max_ch(), ProcessAudioPacket(), and SetupAudioStream().

◆ SetupAudioStream()

bool AvFormatDecoder::SetupAudioStream ( void )

protected

Reinitializes audio if it needs to be reinitialized.

Returns: true if audio changed, false otherwise

Definition at line 5005 of file avformatdecoder.cpp.

Referenced by AutoSelectAudioTrack(), ForceSetupAudioStream(), and SetTrack().

◆ SetupAudioStreamSubIndexes()

void AvFormatDecoder::SetupAudioStreamSubIndexes ( int streamIndex )

protected

Reacts to DUAL/STEREO changes on the fly and fix streams.

This function should be called when a switch between dual and stereo mpeg audio is detected. Such changes can and will happen at any time.

After this method returns, a new audio stream should be selected using AvFormatDecoder::autoSelectSubtitleTrack().

Parameters

streamIndex av_stream_index of the stream that has changed

Definition at line 2562 of file avformatdecoder.cpp.

Referenced by ProcessAudioPacket().

◆ RemoveAudioStreams()

void AvFormatDecoder::RemoveAudioStreams ( )

protected

remove audio streams from the context used by dvd code during title transitions to remove stale audio streams

Definition at line 2621 of file avformatdecoder.cpp.

Referenced by ScanStreams().

◆ HandleGopStart()

void AvFormatDecoder::HandleGopStart	(	AVPacket *	pkt,
		bool	can_reliably_parse_keyframes
	)

protected

Update our position map, keyframe distance, and the like.

Called for key frame packets.

Definition at line 2868 of file avformatdecoder.cpp.

Referenced by H264PreProcessPkt(), MpegPreProcessPkt(), and PreProcessVideoPacket().

◆ GenerateDummyVideoFrames()

bool AvFormatDecoder::GenerateDummyVideoFrames ( void )

protected

Definition at line 4892 of file avformatdecoder.cpp.

Referenced by GetFrame(), and ProcessDataPacket().

◆ HasVideo()

bool AvFormatDecoder::HasVideo ( )

protected

Definition at line 4865 of file avformatdecoder.cpp.

Referenced by GetFrame().

◆ GetVideoFrameRate()

float AvFormatDecoder::GetVideoFrameRate	(	AVStream *	Stream,
		AVCodecContext *	Context,
		bool	Sanitise = `false`
	)

protected

Definition at line 1218 of file avformatdecoder.cpp.

Referenced by autoSelectVideoTrack(), H264PreProcessPkt(), InitVideoCodec(), and MpegPreProcessPkt().

◆ av_update_stream_timings_video()

void AvFormatDecoder::av_update_stream_timings_video ( AVFormatContext * ic )

staticprotected

Definition at line 5154 of file avformatdecoder.cpp.

Referenced by OpenFile().

◆ OpenAVCodec()

bool AvFormatDecoder::OpenAVCodec	(	AVCodecContext *	avctx,
		const AVCodec *	codec
	)

protected

Definition at line 2433 of file avformatdecoder.cpp.

Referenced by autoSelectVideoTrack(), and ScanStreams().

◆ UpdateFramesPlayed()

void AvFormatDecoder::UpdateFramesPlayed ( void )

overrideprotectedvirtual

Reimplemented from DecoderBase.

Reimplemented in MythDVDDecoder.

Definition at line 2462 of file avformatdecoder.cpp.

◆ DoRewindSeek()

bool AvFormatDecoder::DoRewindSeek ( long long desiredFrame )

overrideprotectedvirtual

Reimplemented from DecoderBase.

Reimplemented in MythDVDDecoder.

Definition at line 2467 of file avformatdecoder.cpp.

◆ DoFastForwardSeek()

void AvFormatDecoder::DoFastForwardSeek	(	long long	desiredFrame,
		bool &	needflush
	)

overrideprotectedvirtual

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.

The seek is not made if framesPlayed is greater than the keyframe this would jump too. This means that frame-by-frame seeking after a keyframe must be done elsewhere.

If the seek is made the needflush parameter is set.

Parameters

desiredFrame	frame we are attempting to seek to.
needflush	set to true if a seek is made.

Reimplemented from DecoderBase.

Reimplemented in MythDVDDecoder.

Definition at line 2472 of file avformatdecoder.cpp.

◆ StreamChangeCheck()

void AvFormatDecoder::StreamChangeCheck ( void )

protectedvirtual

Reimplemented in MythDVDDecoder, and MythBDDecoder.

Definition at line 4846 of file avformatdecoder.cpp.

Referenced by GetFrame().

◆ PostProcessTracks()

virtual void AvFormatDecoder::PostProcessTracks ( void )

inlineprotectedvirtual

Reimplemented in MythDVDDecoder.

Definition at line 219 of file avformatdecoder.h.

Referenced by ScanStreams().

◆ IsValidStream()

virtual bool AvFormatDecoder::IsValidStream ( int )

inlineprotectedvirtual

Reimplemented in MythBDDecoder.

Definition at line 220 of file avformatdecoder.h.

Referenced by MythBDDecoder::IsValidStream(), and ScanStreams().

◆ DecodeAudio()

int AvFormatDecoder::DecodeAudio	(	AVCodecContext *	ctx,
		uint8_t *	buffer,
		int &	data_size,
		AVPacket *	pkt
	)

protected

◆ ReadPacket()

int AvFormatDecoder::ReadPacket	(	AVFormatContext *	ctx,
		AVPacket *	pkt,
		bool &	storePacket
	)

protectedvirtual

Reimplemented in MythDVDDecoder, and MythBDDecoder.

Definition at line 4857 of file avformatdecoder.cpp.

Referenced by GetFrame().

◆ FlagIsSet()

bool AvFormatDecoder::FlagIsSet ( PlayerFlags arg )

inlineprotected

Definition at line 227 of file avformatdecoder.h.

Referenced by autoSelectVideoTrack(), InitVideoCodec(), and ProcessVideoFrame().

◆ autoSelectVideoTrack()

int AvFormatDecoder::autoSelectVideoTrack ( int & scanerror )

protected

Definition at line 1865 of file avformatdecoder.cpp.

Referenced by ScanStreams().

◆ remove_tracks_not_in_same_AVProgram()

void AvFormatDecoder::remove_tracks_not_in_same_AVProgram ( int stream_index )

protected

Definition at line 2053 of file avformatdecoder.cpp.

Referenced by ScanStreams().

◆ get_current_AVStream_index()

int AvFormatDecoder::get_current_AVStream_index ( TrackType type )

protected

Definition at line 5205 of file avformatdecoder.cpp.

Referenced by get_current_AVProgram().

◆ get_current_AVProgram()

AVProgram * AvFormatDecoder::get_current_AVProgram ( )

protected

Definition at line 5214 of file avformatdecoder.cpp.

Referenced by HasVideo().

◆ do_av_seek()

bool AvFormatDecoder::do_av_seek	(	long long	desiredFrame,
		bool	discardFrames,
		int	flags
	)

protected

Definition at line 617 of file avformatdecoder.cpp.

Referenced by DoFastForward(), and DoRewind().

Friends And Related Function Documentation

◆ get_avf_buffer

int get_avf_buffer	(	struct AVCodecContext *	c,
		AVFrame *	pic,
		int	flags
	)

friend

Definition at line 2663 of file avformatdecoder.cpp.

Referenced by InitVideoCodec().

Member Data Documentation

◆ m_isDbIgnored

bool AvFormatDecoder::m_isDbIgnored

protected

Definition at line 237 of file avformatdecoder.h.

Referenced by autoSelectVideoTrack(), and OpenFile().

◆ m_avcParser

AVCParser* AvFormatDecoder::m_avcParser {nullptr}

protected

Definition at line 239 of file avformatdecoder.h.

Referenced by autoSelectVideoTrack(), CloseContext(), H264PreProcessPkt(), SetIdrOnlyKeyframes(), and ~AvFormatDecoder().

◆ m_ic

AVFormatContext* AvFormatDecoder::m_ic {nullptr}

protected

Definition at line 241 of file avformatdecoder.h.

Referenced by AutoSelectAudioTrack(), autoSelectVideoTrack(), CloseCodecs(), CloseContext(), do_av_seek(), get_current_AVProgram(), GetAttachmentData(), MythBDDecoder::GetAudioLanguage(), MythDVDDecoder::GetAudioLanguage(), MythDVDDecoder::GetAudioTrackType(), GetAudioTrackType(), GetChapter(), GetChapterTimes(), GetCurrentChapter(), GetFrame(), GetNumChapters(), GetRawEncodingType(), GetSubHeader(), MythBDDecoder::GetSubtitleLanguage(), GetSubtitleLanguage(), GetTrackDesc(), GetVideoFrameRate(), NormalizeVideoTimecode(), OpenFile(), MythDVDDecoder::PostProcessTracks(), MythDVDDecoder::ReadPacket(), remove_tracks_not_in_same_AVProgram(), RemoveAudioStreams(), ScanATSCCaptionStreams(), ScanRawTextCaptions(), ScanStreams(), ScanTeletextCaptions(), SeekReset(), selectBestAudioTrack(), SetAudioByComponentTag(), SetEof(), SetupAudioStream(), SetVideoByComponentTag(), MythDVDDecoder::StreamChangeCheck(), and streams_changed().

◆ m_codecMap

MythCodecMap AvFormatDecoder::m_codecMap

protected

Definition at line 242 of file avformatdecoder.h.

Referenced by autoSelectVideoTrack(), CloseCodecs(), CodecMap(), GetFrame(), GetSubHeader(), GetTrackDesc(), OpenFile(), RemoveAudioStreams(), ScanStreams(), SeekReset(), and SetupAudioStream().

◆ m_frameDecoded

int AvFormatDecoder::m_frameDecoded {0}

protected

Definition at line 246 of file avformatdecoder.h.

Referenced by GetFrame().

◆ m_decodedVideoFrame

MythVideoFrame* AvFormatDecoder::m_decodedVideoFrame {nullptr}

protected

Definition at line 247 of file avformatdecoder.h.

Referenced by GenerateDummyVideoFrames(), GetFrame(), ProcessVideoFrame(), and SeekReset().

◆ m_avfRingBuffer

MythAVFormatBuffer* AvFormatDecoder::m_avfRingBuffer {nullptr}

protected

Definition at line 248 of file avformatdecoder.h.

Referenced by CloseContext(), OpenFile(), and ~AvFormatDecoder().

◆ m_swsCtx

struct SwsContext* AvFormatDecoder::m_swsCtx {nullptr}

protected

Definition at line 250 of file avformatdecoder.h.

Referenced by ProcessVideoFrame(), and ~AvFormatDecoder().

◆ m_directRendering

bool AvFormatDecoder::m_directRendering {false}

protected

Definition at line 251 of file avformatdecoder.h.

Referenced by InitVideoCodec(), and ProcessVideoFrame().

◆ m_gopSet

bool AvFormatDecoder::m_gopSet {false}

protected

Definition at line 253 of file avformatdecoder.h.

Referenced by H264PreProcessPkt(), HandleGopStart(), MpegPreProcessPkt(), OpenFile(), and SeekReset().

◆ m_seenGop

bool AvFormatDecoder::m_seenGop {false}

protected

A flag to indicate that we've seen a GOP frame. Used in junction with seq_count.

Definition at line 255 of file avformatdecoder.h.

Referenced by MpegPreProcessPkt(), PreProcessVideoPacket(), and Reset().

◆ m_seqCount

int AvFormatDecoder::m_seqCount {0}

protected

A counter used to determine if we need to force a call to HandleGopStart.

Definition at line 257 of file avformatdecoder.h.

Referenced by MpegPreProcessPkt(), PreProcessVideoPacket(), and Reset().

◆ m_storedPackets

QList<AVPacket*> AvFormatDecoder::m_storedPackets

protected

Definition at line 259 of file avformatdecoder.h.

Referenced by GetFrame(), ProcessVideoPacket(), MythDVDDecoder::ReadPacket(), SeekReset(), and ~AvFormatDecoder().

◆ m_prevGopPos

int AvFormatDecoder::m_prevGopPos {0}

protected

Definition at line 261 of file avformatdecoder.h.

Referenced by H264PreProcessPkt(), HandleGopStart(), MpegPreProcessPkt(), and SeekReset().

◆ m_gotVideoFrame

bool AvFormatDecoder::m_gotVideoFrame {false}

protected

Definition at line 264 of file avformatdecoder.h.

Referenced by GenerateDummyVideoFrames(), GetFrame(), PreProcessVideoPacket(), and ProcessVideoFrame().

◆ m_hasVideo

bool AvFormatDecoder::m_hasVideo {false}

protected

Definition at line 265 of file avformatdecoder.h.

Referenced by GetFrame().

◆ m_needDummyVideoFrames

bool AvFormatDecoder::m_needDummyVideoFrames {false}

protected

Definition at line 266 of file avformatdecoder.h.

Referenced by GenerateDummyVideoFrames(), and GetFrame().

◆ m_skipAudio

bool AvFormatDecoder::m_skipAudio {false}

protected

Definition at line 267 of file avformatdecoder.h.

Referenced by GetFrame().

◆ m_allowedQuit

bool AvFormatDecoder::m_allowedQuit {false}

protected

Definition at line 268 of file avformatdecoder.h.

Referenced by GetFrame(), ProcessAudioPacket(), and ProcessDataPacket().

◆ m_startCodeState

uint32_t AvFormatDecoder::m_startCodeState {0xffffffff}

protected

Definition at line 270 of file avformatdecoder.h.

Referenced by MpegPreProcessPkt().

◆ m_lastVPts

std::chrono::milliseconds AvFormatDecoder::m_lastVPts {0ms}

protected

Definition at line 272 of file avformatdecoder.h.

Referenced by GenerateDummyVideoFrames(), GetFrame(), H264PreProcessPkt(), MpegPreProcessPkt(), ProcessVideoFrame(), and SeekReset().

◆ m_lastAPts

std::chrono::milliseconds AvFormatDecoder::m_lastAPts {0ms}

protected

Definition at line 273 of file avformatdecoder.h.

Referenced by GetFrame(), H264PreProcessPkt(), MpegPreProcessPkt(), ProcessAudioPacket(), and SeekReset().

◆ m_lastCcPtsu

std::chrono::microseconds AvFormatDecoder::m_lastCcPtsu {0ms}

protected

Definition at line 274 of file avformatdecoder.h.

Referenced by DecodeCCx08(), GetFrame(), H264PreProcessPkt(), MpegPreProcessPkt(), ProcessVBIDataPacket(), and SeekReset().

◆ m_firstVPts

std::chrono::milliseconds AvFormatDecoder::m_firstVPts {0ms}

protected

Definition at line 275 of file avformatdecoder.h.

Referenced by H264PreProcessPkt(), MpegPreProcessPkt(), ProcessVideoFrame(), and SeekReset().

◆ m_firstVPtsInuse

bool AvFormatDecoder::m_firstVPtsInuse {false}

protected

Definition at line 276 of file avformatdecoder.h.

Referenced by H264PreProcessPkt(), MpegPreProcessPkt(), ProcessAudioPacket(), ProcessVideoFrame(), and SeekReset().

◆ m_playerFlags

PlayerFlags AvFormatDecoder::m_playerFlags

protected

Definition at line 278 of file avformatdecoder.h.

Referenced by AvFormatDecoder(), and FlagIsSet().

◆ m_videoCodecId

MythCodecID AvFormatDecoder::m_videoCodecId {kCodec_NONE}

protected

Definition at line 279 of file avformatdecoder.h.

Referenced by autoSelectVideoTrack(), GetCodecDecoderName(), GetVideoCodecID(), InitVideoCodec(), and ProcessVideoPacket().

◆ m_maxKeyframeDist

int AvFormatDecoder::m_maxKeyframeDist {-1}

protected

Definition at line 281 of file avformatdecoder.h.

Referenced by HandleGopStart().

◆ m_averrorCount

int AvFormatDecoder::m_averrorCount {0}

protected

Definition at line 282 of file avformatdecoder.h.

Referenced by autoSelectVideoTrack(), InitVideoCodec(), and ProcessVideoPacket().

◆ m_ccd608

CC608Decoder* AvFormatDecoder::m_ccd608 {nullptr}

protected

Definition at line 285 of file avformatdecoder.h.

Referenced by AvFormatDecoder(), DecodeCCx08(), GetXDS(), ProcessVBIDataPacket(), UpdateCaptionTracksFromStreams(), and ~AvFormatDecoder().

◆ m_ccd708

CC708Decoder* AvFormatDecoder::m_ccd708 {nullptr}

protected

Definition at line 286 of file avformatdecoder.h.

Referenced by DecodeCCx08(), UpdateCaptionTracksFromStreams(), and ~AvFormatDecoder().

◆ m_ttd

TeletextDecoder* AvFormatDecoder::m_ttd {nullptr}

protected

Definition at line 287 of file avformatdecoder.h.

Referenced by GetTeletextDecoderType(), ProcessDVBDataPacket(), ProcessVBIDataPacket(), and ~AvFormatDecoder().

◆ m_ccX08InPmt

std::array<bool,68> AvFormatDecoder::m_ccX08InPmt {}

protected

Lookup table for whether a stream was seen in the PMT entries 0-3 correspond to CEA-608 CC1 through CC4, while entries 4-67 corresport to CEA-708 streams 0 through 64.

Definition at line 291 of file avformatdecoder.h.

Referenced by ScanATSCCaptionStreams(), and UpdateCaptionTracksFromStreams().

◆ m_ccX08InTracks

std::array<bool,68> AvFormatDecoder::m_ccX08InTracks {}

protected

Lookup table for whether a stream is represented in the UI entries 0-3 correspond to CEA-608 CC1 through CC4, while entries 4-67 corresport to CEA-708 streams 0 through 64.

Definition at line 295 of file avformatdecoder.h.

Referenced by UpdateATSCCaptionTracks(), and UpdateCaptionTracksFromStreams().

◆ m_pmtTracks

QList<StreamInfo> AvFormatDecoder::m_pmtTracks

protected

StreamInfo for 608 and 708 Captions seen in the PMT descriptor.

Definition at line 297 of file avformatdecoder.h.

Referenced by GetCaptionLanguage(), ScanATSCCaptionStreams(), and UpdateATSCCaptionTracks().

◆ m_pmtTrackTypes

QList<TrackType> AvFormatDecoder::m_pmtTrackTypes

protected

TrackType (608 or 708) for Captions seen in the PMT descriptor.

Definition at line 299 of file avformatdecoder.h.

Referenced by GetCaptionLanguage(), ScanATSCCaptionStreams(), and UpdateATSCCaptionTracks().

◆ m_streamTracks

QList<StreamInfo> AvFormatDecoder::m_streamTracks

protected

StreamInfo for 608 and 708 Captions seen in the caption stream itself but not seen in the PMT.

Definition at line 302 of file avformatdecoder.h.

Referenced by GetCaptionLanguage(), UpdateATSCCaptionTracks(), and UpdateCaptionTracksFromStreams().

◆ m_streamTrackTypes

QList<TrackType> AvFormatDecoder::m_streamTrackTypes

protected

TrackType (608 or 708) for Captions seen in the caption stream itself but not seen in the PMT.

Definition at line 305 of file avformatdecoder.h.

Referenced by GetCaptionLanguage(), UpdateATSCCaptionTracks(), and UpdateCaptionTracksFromStreams().

◆ m_itv

InteractiveTV* AvFormatDecoder::m_itv {nullptr}

protected

MHEG/MHP decoder.

Definition at line 308 of file avformatdecoder.h.

Referenced by OpenFile(), ProcessDataPacket(), ProcessDSMCCPacket(), and ScanDSMCCStreams().

◆ m_audioSamples

uint8_t* AvFormatDecoder::m_audioSamples {nullptr}

protected

Definition at line 311 of file avformatdecoder.h.

Referenced by ProcessAudioPacket(), and ~AvFormatDecoder().

◆ m_disablePassthru

bool AvFormatDecoder::m_disablePassthru {false}

protected

Definition at line 312 of file avformatdecoder.h.

Referenced by DoPassThrough(), and SetDisablePassThrough().

◆ m_audioIn

AudioInfo AvFormatDecoder::m_audioIn

protected

Definition at line 314 of file avformatdecoder.h.

Referenced by AvFormatDecoder(), ScanStreams(), and SetupAudioStream().

◆ m_audioOut

AudioInfo AvFormatDecoder::m_audioOut

protected

Definition at line 315 of file avformatdecoder.h.

Referenced by ProcessAudioPacket(), and SetupAudioStream().

◆ m_processFrames

bool AvFormatDecoder::m_processFrames {true}

protected

Definition at line 317 of file avformatdecoder.h.

Referenced by GetFrame(), and OpenFile().

◆ m_streamsChanged

bool AvFormatDecoder::m_streamsChanged { false }

protected

Definition at line 319 of file avformatdecoder.h.

Referenced by autoSelectVideoTrack(), GetFrame(), InitVideoCodec(), ProcessVideoPacket(), MythBDDecoder::StreamChangeCheck(), MythDVDDecoder::StreamChangeCheck(), and StreamChangeCheck().

◆ m_resetHardwareDecoders

bool AvFormatDecoder::m_resetHardwareDecoders { false }

protected

Definition at line 320 of file avformatdecoder.h.

Referenced by ProcessVideoPacket(), and ScanStreams().

◆ m_audioReadAhead

std::chrono::milliseconds AvFormatDecoder::m_audioReadAhead {100ms}

protected

Definition at line 323 of file avformatdecoder.h.

Referenced by AvFormatDecoder(), and GetFrame().

◆ m_avCodecLock

QRecursiveMutex AvFormatDecoder::m_avCodecLock

protected

Definition at line 325 of file avformatdecoder.h.

Referenced by CloseCodecs(), OpenAVCodec(), OpenFile(), ProcessAudioPacket(), ProcessDSMCCPacket(), ProcessSubtitlePacket(), ProcessVideoPacket(), MythBDDecoder::ReadPacket(), MythDVDDecoder::ReadPacket(), ReadPacket(), RemoveAudioStreams(), ScanStreams(), and SeekReset().

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

mythtv/libs/libmythtv/decoders/avformatdecoder.h
mythtv/libs/libmythtv/decoders/avformatdecoder.cpp

Public Member Functions

Static Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

◆ AvFormatDecoder() [1/2]

◆ ~AvFormatDecoder()

◆ AvFormatDecoder() [2/2]

Member Function Documentation

◆ operator=()

◆ SetEof()

◆ CodecMap()

◆ CloseCodecs()

◆ CloseContext()

◆ Reset()

◆ CanHandle()

◆ OpenFile()

◆ GetFrame()

◆ IsLastFrameKey()

◆ GetCodecDecoderName()

◆ GetRawEncodingType()

◆ GetVideoCodecID()

◆ SetDisablePassThrough()

◆ ForceSetupAudioStream()

◆ AddTextData()

◆ GetTrackDesc()

◆ SetTrack()

◆ ScanStreams()

◆ GetNumChapters()

◆ GetChapterTimes()

◆ GetCurrentChapter()

◆ GetChapter()

◆ DoRewind()

◆ DoFastForward()

◆ SetIdrOnlyKeyframes()

◆ NormalizeVideoTimecode() [1/2]

◆ NormalizeVideoTimecode() [2/2]

◆ GetTeletextDecoderType()

◆ GetXDS()

◆ GetSubHeader()

◆ GetAttachmentData()

◆ SetAudioByComponentTag()

◆ SetVideoByComponentTag()

◆ GetTeletextLanguage()

◆ GetSubtitleLanguage()

◆ GetCaptionLanguage()

◆ GetAudioLanguage()

◆ GetAudioTrackType()

◆ GetMaxReferenceFrames()

◆ streams_changed()

◆ AutoSelectTrack()

◆ ScanATSCCaptionStreams()

◆ UpdateATSCCaptionTracks()

◆ UpdateCaptionTracksFromStreams()

◆ ScanTeletextCaptions()

◆ ScanRawTextCaptions()

◆ ScanDSMCCStreams()

◆ AutoSelectAudioTrack()

◆ filter_max_ch()

◆ selectBestAudioTrack()

◆ DecodeCCx08()

◆ InitVideoCodec()

◆ MpegPreProcessPkt()

◆ H264PreProcessPkt()

◆ PreProcessVideoPacket()

◆ ProcessVideoPacket()

◆ ProcessVideoFrame()

◆ ProcessAudioPacket()

◆ ProcessSubtitlePacket()

◆ ProcessRawTextPacket()

◆ ProcessDataPacket()

◆ ProcessVBIDataPacket()

◆ ProcessDVBDataPacket()

◆ ProcessDSMCCPacket()

◆ SeekReset()

◆ DecoderWillDownmix()

◆ DoPassThrough()