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	UpdateFramesPlayed (void) override

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

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	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)

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...

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)

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...

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

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 75 of file avformatdecoder.h.

Constructor & Destructor Documentation

◆ AvFormatDecoder() [1/2]

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

Definition at line 368 of file avformatdecoder.cpp.

◆ ~AvFormatDecoder()

AvFormatDecoder::~AvFormatDecoder ( )

override

Definition at line 398 of file avformatdecoder.cpp.

◆ AvFormatDecoder() [2/2]

AvFormatDecoder::AvFormatDecoder ( const AvFormatDecoder & )

delete

Member Function Documentation

◆ AddTextData()

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

◆ 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 4196 of file avformatdecoder.cpp.

Referenced by AutoSelectTrack(), and ProcessAudioPacket().

◆ 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 4040 of file avformatdecoder.cpp.

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

◆ autoSelectVideoTrack()

int AvFormatDecoder::autoSelectVideoTrack ( int & scanerror )

protected

Definition at line 1890 of file avformatdecoder.cpp.

Referenced by ScanStreams().

◆ av_update_stream_timings_video()

void AvFormatDecoder::av_update_stream_timings_video ( AVFormatContext * ic )

staticprotected

Definition at line 5190 of file avformatdecoder.cpp.

Referenced by OpenFile().

◆ 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 831 of file avformatdecoder.cpp.

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

◆ CloseCodecs()

void AvFormatDecoder::CloseCodecs ( )

Definition at line 434 of file avformatdecoder.cpp.

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

◆ CloseContext()

void AvFormatDecoder::CloseContext ( )

Definition at line 448 of file avformatdecoder.cpp.

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

◆ CodecMap()

MythCodecMap * AvFormatDecoder::CodecMap ( void )

Definition at line 429 of file avformatdecoder.cpp.

Referenced by MythMMALContext::GetSupportedCodec().

◆ DecodeAudio()

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

protected

◆ DecodeCCx08()

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

protected

Definition at line 2785 of file avformatdecoder.cpp.

Referenced by ProcessVideoFrame().

◆ DecoderWillDownmix()

bool AvFormatDecoder::DecoderWillDownmix ( const AVCodecContext * ctx )

inlineprotected

Definition at line 4991 of file avformatdecoder.cpp.

Referenced by ProcessAudioPacket(), and SetupAudioStream().

◆ do_av_seek()

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

protected

Definition at line 623 of file avformatdecoder.cpp.

Referenced by DoFastForward(), and DoRewind().

◆ 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 601 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 2495 of file avformatdecoder.cpp.

◆ DoPassThrough()

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

protected

Definition at line 5014 of file avformatdecoder.cpp.

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

◆ DoRewind()

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

overridevirtual

Reimplemented from DecoderBase.

Definition at line 589 of file avformatdecoder.cpp.

◆ DoRewindSeek()

bool AvFormatDecoder::DoRewindSeek ( long long desiredFrame )

overrideprotectedvirtual

Reimplemented from DecoderBase.

Reimplemented in MythDVDDecoder.

Definition at line 2490 of file avformatdecoder.cpp.

◆ 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 4078 of file avformatdecoder.cpp.

Referenced by selectBestAudioTrack().

◆ FlagIsSet()

bool AvFormatDecoder::FlagIsSet ( PlayerFlags arg )

inlineprotected

Definition at line 222 of file avformatdecoder.h.

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

◆ ForceSetupAudioStream()

void AvFormatDecoder::ForceSetupAudioStream ( void )

overridevirtual

Reimplemented from DecoderBase.

Definition at line 4985 of file avformatdecoder.cpp.

Referenced by SetDisablePassThrough().

◆ GenerateDummyVideoFrames()

bool AvFormatDecoder::GenerateDummyVideoFrames ( void )

protected

Definition at line 4928 of file avformatdecoder.cpp.

Referenced by GetFrame(), and ProcessDataPacket().

◆ get_current_AVProgram()

AVProgram * AvFormatDecoder::get_current_AVProgram ( )

protected

Definition at line 5250 of file avformatdecoder.cpp.

Referenced by HasVideo().

◆ get_current_AVStream_index()

int AvFormatDecoder::get_current_AVStream_index ( TrackType type )

protected

Definition at line 5241 of file avformatdecoder.cpp.

Referenced by get_current_AVProgram().

◆ GetAttachmentData()

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

overridevirtual

Reimplemented from DecoderBase.

Definition at line 3993 of file avformatdecoder.cpp.

◆ GetAudioLanguage()

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

virtual

Reimplemented in MythBDDecoder, and MythDVDDecoder.

Definition at line 2548 of file avformatdecoder.cpp.

Referenced by ScanStreams().

◆ GetAudioTrackType()

AudioTrackType AvFormatDecoder::GetAudioTrackType ( uint StreamIndex )

virtual

Reimplemented in MythDVDDecoder.

Definition at line 2553 of file avformatdecoder.cpp.

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

◆ GetCaptionLanguage()

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

virtual

Return ATSC Closed Caption Language.

Definition at line 2518 of file avformatdecoder.cpp.

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

◆ GetChapter()

long long AvFormatDecoder::GetChapter ( int chapter )

overridevirtual

Reimplemented from DecoderBase.

Definition at line 573 of file avformatdecoder.cpp.

◆ GetChapterTimes()

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

overridevirtual

Reimplemented from DecoderBase.

Definition at line 532 of file avformatdecoder.cpp.

◆ GetCodecDecoderName()

QString AvFormatDecoder::GetCodecDecoderName ( void ) const

overridevirtual

Implements DecoderBase.

Definition at line 4953 of file avformatdecoder.cpp.

Referenced by autoSelectVideoTrack().

◆ GetCurrentChapter()

int AvFormatDecoder::GetCurrentChapter ( long long framesPlayed )

overridevirtual

Reimplemented from DecoderBase.

Definition at line 549 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 4570 of file avformatdecoder.cpp.

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

◆ GetMaxReferenceFrames()

int AvFormatDecoder::GetMaxReferenceFrames ( AVCodecContext * Context )

static

Definition at line 1361 of file avformatdecoder.cpp.

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

◆ GetNumChapters()

int AvFormatDecoder::GetNumChapters ( void )

overridevirtual

Reimplemented from DecoderBase.

Definition at line 525 of file avformatdecoder.cpp.

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

◆ GetRawEncodingType()

QString AvFormatDecoder::GetRawEncodingType ( void )

overridevirtual

Reimplemented from DecoderBase.

Definition at line 4958 of file avformatdecoder.cpp.

◆ GetSubHeader()

QByteArray AvFormatDecoder::GetSubHeader ( uint TrackNo )

overridevirtual

Reimplemented from DecoderBase.

Definition at line 3981 of file avformatdecoder.cpp.

◆ GetSubtitleLanguage()

int AvFormatDecoder::GetSubtitleLanguage	(	uint	,
		uint	StreamIndex
	)

virtual

Returns DVD Subtitle language.

Reimplemented in MythBDDecoder.

Definition at line 2511 of file avformatdecoder.cpp.

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

◆ GetTeletextDecoderType()

int AvFormatDecoder::GetTeletextDecoderType ( void ) const

overridevirtual

Reimplemented from DecoderBase.

Definition at line 3971 of file avformatdecoder.cpp.

◆ GetTeletextLanguage()

int AvFormatDecoder::GetTeletextLanguage ( uint Index )

virtual

Returns TeleText language.

Definition at line 2501 of file avformatdecoder.cpp.

Referenced by MythCCExtractorPlayer::ProcessTeletext().

◆ GetTrackDesc()

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

overridevirtual

Reimplemented from DecoderBase.

Definition at line 3894 of file avformatdecoder.cpp.

◆ GetVideoCodecID()

MythCodecID AvFormatDecoder::GetVideoCodecID ( void ) const

inlineoverridevirtual

Implements DecoderBase.

Definition at line 110 of file avformatdecoder.h.

Referenced by MythMMALContext::GetBuffer().

◆ GetVideoFrameRate()

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

protected

Definition at line 1200 of file avformatdecoder.cpp.

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

◆ GetXDS()

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

overridevirtual

Reimplemented from DecoderBase.

Definition at line 3976 of file avformatdecoder.cpp.

◆ H264PreProcessPkt()

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

protected

Definition at line 3109 of file avformatdecoder.cpp.

Referenced by PreProcessVideoPacket().

◆ 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 2893 of file avformatdecoder.cpp.

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

◆ HasVideo()

bool AvFormatDecoder::HasVideo ( )

protected

Definition at line 4901 of file avformatdecoder.cpp.

Referenced by GetFrame().

◆ InitVideoCodec()

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

protected

Definition at line 1395 of file avformatdecoder.cpp.

Referenced by autoSelectVideoTrack().

◆ IsLastFrameKey()

bool AvFormatDecoder::IsLastFrameKey ( void ) const

inlineoverridevirtual

Implements DecoderBase.

Definition at line 106 of file avformatdecoder.h.

◆ IsValidStream()

virtual bool AvFormatDecoder::IsValidStream ( int )

inlineprotectedvirtual

Reimplemented in MythBDDecoder.

Definition at line 215 of file avformatdecoder.h.

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

◆ MpegPreProcessPkt()

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

protected

Preprocess a packet, setting the video parms if necessary.

Definition at line 3015 of file avformatdecoder.cpp.

Referenced by PreProcessVideoPacket().

◆ NormalizeVideoTimecode() [1/2]

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

virtual

Definition at line 503 of file avformatdecoder.cpp.

◆ NormalizeVideoTimecode() [2/2]

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

overridevirtual

Reimplemented from DecoderBase.

Definition at line 469 of file avformatdecoder.cpp.

Referenced by ProcessVideoFrame().

◆ OpenAVCodec()

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

protected

Definition at line 2456 of file avformatdecoder.cpp.

Referenced by autoSelectVideoTrack(), and ScanStreams().

◆ 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 898 of file avformatdecoder.cpp.

◆ operator=()

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

delete

◆ PostProcessTracks()

virtual void AvFormatDecoder::PostProcessTracks ( void )

inlineprotectedvirtual

Reimplemented in MythDVDDecoder.

Definition at line 214 of file avformatdecoder.h.

Referenced by ScanStreams().

◆ PreProcessVideoPacket()

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

protected

Definition at line 3211 of file avformatdecoder.cpp.

Referenced by GetFrame().

◆ ProcessAudioPacket()

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

protected

Definition at line 4376 of file avformatdecoder.cpp.

Referenced by GetFrame().

◆ ProcessDataPacket()

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

protectedvirtual

Reimplemented in MythDVDDecoder.

Definition at line 3854 of file avformatdecoder.cpp.

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

◆ ProcessDSMCCPacket()

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

protected

Process DSMCC object carousel packet.

Definition at line 3712 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 3655 of file avformatdecoder.cpp.

Referenced by GetFrame(), and ProcessDataPacket().

◆ ProcessRawTextPacket()

bool AvFormatDecoder::ProcessRawTextPacket ( AVPacket * Packet )

protected

Definition at line 3833 of file avformatdecoder.cpp.

Referenced by GetFrame().

◆ ProcessSubtitlePacket()

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

protected

Definition at line 3750 of file avformatdecoder.cpp.

Referenced by GetFrame().

◆ 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 3570 of file avformatdecoder.cpp.

Referenced by GetFrame().

◆ ProcessVideoFrame()

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

protectedvirtual

Reimplemented in MythDVDDecoder.

Definition at line 3383 of file avformatdecoder.cpp.

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

◆ ProcessVideoPacket()

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

protectedvirtual

Reimplemented in MythDVDDecoder.

Definition at line 3269 of file avformatdecoder.cpp.

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

◆ ReadPacket()

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

protectedvirtual

Reimplemented in MythBDDecoder, and MythDVDDecoder.

Definition at line 4893 of file avformatdecoder.cpp.

Referenced by GetFrame().

◆ remove_tracks_not_in_same_AVProgram()

void AvFormatDecoder::remove_tracks_not_in_same_AVProgram ( int stream_index )

protected

Definition at line 2075 of file avformatdecoder.cpp.

Referenced by ScanStreams().

◆ 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 2644 of file avformatdecoder.cpp.

Referenced by ScanStreams().

◆ Reset()

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

overridevirtual

Reimplemented from DecoderBase.

Reimplemented in MythDVDDecoder.

Definition at line 812 of file avformatdecoder.cpp.

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

◆ ScanATSCCaptionStreams()

void AvFormatDecoder::ScanATSCCaptionStreams ( int av_index )

protected

Definition at line 1600 of file avformatdecoder.cpp.

Referenced by autoSelectVideoTrack(), and UpdateCaptionTracksFromStreams().

◆ 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 1825 of file avformatdecoder.cpp.

Referenced by ScanStreams().

◆ ScanRawTextCaptions()

void AvFormatDecoder::ScanRawTextCaptions ( int av_stream_index )

protected

Definition at line 1802 of file avformatdecoder.cpp.

Referenced by ScanStreams().

◆ ScanStreams()

int AvFormatDecoder::ScanStreams ( bool novideo )

Definition at line 2113 of file avformatdecoder.cpp.

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

◆ ScanTeletextCaptions()

void AvFormatDecoder::ScanTeletextCaptions ( int av_index )

protected

Definition at line 1745 of file avformatdecoder.cpp.

Referenced by ScanStreams().

◆ SeekReset()

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

overridevirtual

Reimplemented from DecoderBase.

Definition at line 673 of file avformatdecoder.cpp.

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

◆ selectBestAudioTrack()

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

protected

Definition at line 4108 of file avformatdecoder.cpp.

Referenced by AutoSelectAudioTrack().

◆ SetAudioByComponentTag()

bool AvFormatDecoder::SetAudioByComponentTag ( int Tag )

overridevirtual

Reimplemented from DecoderBase.

Definition at line 4007 of file avformatdecoder.cpp.

Referenced by OpenFile().

◆ SetDisablePassThrough()

void AvFormatDecoder::SetDisablePassThrough ( bool disable )

overridevirtual

Disables AC3/DTS pass through.

Reimplemented from DecoderBase.

Definition at line 4966 of file avformatdecoder.cpp.

◆ SetEof()

void AvFormatDecoder::SetEof ( bool eof )

overridevirtual

Reimplemented from DecoderBase.

Definition at line 800 of file avformatdecoder.cpp.

Referenced by GetFrame().

◆ SetIdrOnlyKeyframes()

void AvFormatDecoder::SetIdrOnlyKeyframes ( bool value )

inlineoverridevirtual

Reimplemented from DecoderBase.

Definition at line 128 of file avformatdecoder.h.

Referenced by AvFormatDecoder().

◆ SetTrack()

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

overridevirtual

Reimplemented from DecoderBase.

Definition at line 3882 of file avformatdecoder.cpp.

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

◆ SetupAudioStream()

bool AvFormatDecoder::SetupAudioStream ( void )

protected

Reinitializes audio if it needs to be reinitialized.

Returns: true if audio changed, false otherwise

Definition at line 5041 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 2585 of file avformatdecoder.cpp.

Referenced by ProcessAudioPacket().

◆ SetVideoByComponentTag()

bool AvFormatDecoder::SetVideoByComponentTag ( int Tag )

overridevirtual

Reimplemented from DecoderBase.

Definition at line 4020 of file avformatdecoder.cpp.

Referenced by OpenFile().

◆ StreamChangeCheck()

void AvFormatDecoder::StreamChangeCheck ( void )

protectedvirtual

Reimplemented in MythBDDecoder, and MythDVDDecoder.

Definition at line 4882 of file avformatdecoder.cpp.

Referenced by GetFrame().

◆ streams_changed()

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

static

Definition at line 858 of file avformatdecoder.cpp.

Referenced by HandleStreamChange().

◆ UpdateATSCCaptionTracks()

void AvFormatDecoder::UpdateATSCCaptionTracks ( void )

protected

Definition at line 1676 of file avformatdecoder.cpp.

Referenced by autoSelectVideoTrack(), and UpdateCaptionTracksFromStreams().

◆ UpdateCaptionTracksFromStreams()

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

protected

Definition at line 2824 of file avformatdecoder.cpp.

Referenced by DecodeCCx08(), and ProcessVBIDataPacket().

◆ UpdateFramesPlayed()

void AvFormatDecoder::UpdateFramesPlayed ( void )

overridevirtual

Reimplemented from DecoderBase.

Reimplemented in MythDVDDecoder.

Definition at line 2485 of file avformatdecoder.cpp.

Friends And Related Function Documentation

◆ get_avf_buffer

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

friend

Definition at line 2686 of file avformatdecoder.cpp.

Referenced by InitVideoCodec().

Member Data Documentation

◆ m_allowedQuit

bool AvFormatDecoder::m_allowedQuit {false}

protected

Definition at line 263 of file avformatdecoder.h.

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

◆ m_audioIn

AudioInfo AvFormatDecoder::m_audioIn

protected

Definition at line 309 of file avformatdecoder.h.

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

◆ m_audioOut

AudioInfo AvFormatDecoder::m_audioOut

protected

Definition at line 310 of file avformatdecoder.h.

Referenced by ProcessAudioPacket(), and SetupAudioStream().

◆ m_audioReadAhead

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

protected

Definition at line 318 of file avformatdecoder.h.

Referenced by AvFormatDecoder(), and GetFrame().

◆ m_audioSamples

uint8_t* AvFormatDecoder::m_audioSamples {nullptr}

protected

Definition at line 306 of file avformatdecoder.h.

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

◆ m_avCodecLock

QRecursiveMutex AvFormatDecoder::m_avCodecLock

protected

Definition at line 320 of file avformatdecoder.h.

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

◆ m_avcParser

AVCParser* AvFormatDecoder::m_avcParser {nullptr}

protected

Definition at line 234 of file avformatdecoder.h.

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

◆ m_averrorCount

int AvFormatDecoder::m_averrorCount {0}

protected

Definition at line 277 of file avformatdecoder.h.

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

◆ m_avfRingBuffer

MythAVFormatBuffer* AvFormatDecoder::m_avfRingBuffer {nullptr}

protected

Definition at line 243 of file avformatdecoder.h.

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

◆ m_ccd608

CC608Decoder* AvFormatDecoder::m_ccd608 {nullptr}

protected

Definition at line 280 of file avformatdecoder.h.

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

◆ m_ccd708

CC708Decoder* AvFormatDecoder::m_ccd708 {nullptr}

protected

Definition at line 281 of file avformatdecoder.h.

Referenced by DecodeCCx08(), UpdateCaptionTracksFromStreams(), 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 286 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 290 of file avformatdecoder.h.

Referenced by UpdateATSCCaptionTracks(), and UpdateCaptionTracksFromStreams().

◆ m_codecMap

MythCodecMap AvFormatDecoder::m_codecMap

protected

Definition at line 237 of file avformatdecoder.h.

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

◆ m_decodedVideoFrame

MythVideoFrame* AvFormatDecoder::m_decodedVideoFrame {nullptr}

protected

Definition at line 242 of file avformatdecoder.h.

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

◆ m_directRendering

bool AvFormatDecoder::m_directRendering {false}

protected

Definition at line 246 of file avformatdecoder.h.

Referenced by InitVideoCodec(), and ProcessVideoFrame().

◆ m_disablePassthru

bool AvFormatDecoder::m_disablePassthru {false}

protected

Definition at line 307 of file avformatdecoder.h.

Referenced by DoPassThrough(), and SetDisablePassThrough().

◆ m_firstVPts

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

protected

Definition at line 270 of file avformatdecoder.h.

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

◆ m_firstVPtsInuse

bool AvFormatDecoder::m_firstVPtsInuse {false}

protected

Definition at line 271 of file avformatdecoder.h.

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

◆ m_frameDecoded

int AvFormatDecoder::m_frameDecoded {0}

protected

Definition at line 241 of file avformatdecoder.h.

Referenced by GetFrame().

◆ m_gopSet

bool AvFormatDecoder::m_gopSet {false}

protected

Definition at line 248 of file avformatdecoder.h.

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

◆ m_gotVideoFrame

bool AvFormatDecoder::m_gotVideoFrame {false}

protected

Definition at line 259 of file avformatdecoder.h.

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

◆ m_hasVideo

bool AvFormatDecoder::m_hasVideo {false}

protected

Definition at line 260 of file avformatdecoder.h.

Referenced by GetFrame().

◆ m_ic

AVFormatContext* AvFormatDecoder::m_ic {nullptr}

protected

Definition at line 236 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_isDbIgnored

bool AvFormatDecoder::m_isDbIgnored

protected

Definition at line 232 of file avformatdecoder.h.

Referenced by autoSelectVideoTrack(), and OpenFile().

◆ m_itv

InteractiveTV* AvFormatDecoder::m_itv {nullptr}

protected

MHEG/MHP decoder.

Definition at line 303 of file avformatdecoder.h.

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

◆ m_lastAPts

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

protected

Definition at line 268 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 269 of file avformatdecoder.h.

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

◆ m_lastVPts

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

protected

Definition at line 267 of file avformatdecoder.h.

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

◆ m_maxKeyframeDist

int AvFormatDecoder::m_maxKeyframeDist {-1}

protected

Definition at line 276 of file avformatdecoder.h.

Referenced by HandleGopStart().

◆ m_needDummyVideoFrames

bool AvFormatDecoder::m_needDummyVideoFrames {false}

protected

Definition at line 261 of file avformatdecoder.h.

Referenced by GenerateDummyVideoFrames(), and GetFrame().

◆ m_playerFlags

PlayerFlags AvFormatDecoder::m_playerFlags

protected

Definition at line 273 of file avformatdecoder.h.

Referenced by AvFormatDecoder(), and FlagIsSet().

◆ m_pmtTracks

QList<StreamInfo> AvFormatDecoder::m_pmtTracks

protected

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

Definition at line 292 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 294 of file avformatdecoder.h.

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

◆ m_prevGopPos

int AvFormatDecoder::m_prevGopPos {0}

protected

Definition at line 256 of file avformatdecoder.h.

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

◆ m_processFrames

bool AvFormatDecoder::m_processFrames {true}

protected

Definition at line 312 of file avformatdecoder.h.

Referenced by GetFrame(), and OpenFile().

◆ m_resetHardwareDecoders

bool AvFormatDecoder::m_resetHardwareDecoders { false }

protected

Definition at line 315 of file avformatdecoder.h.

Referenced by ProcessVideoPacket(), and ScanStreams().

◆ 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 250 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 252 of file avformatdecoder.h.

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

◆ m_skipAudio

bool AvFormatDecoder::m_skipAudio {false}

protected

Definition at line 262 of file avformatdecoder.h.

Referenced by GetFrame().

◆ m_startCodeState

uint32_t AvFormatDecoder::m_startCodeState {0xffffffff}

protected

Definition at line 265 of file avformatdecoder.h.

Referenced by MpegPreProcessPkt().

◆ m_storedPackets

QList<AVPacket*> AvFormatDecoder::m_storedPackets

protected

Definition at line 254 of file avformatdecoder.h.

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

◆ m_streamsChanged

bool AvFormatDecoder::m_streamsChanged { false }

protected

Definition at line 314 of file avformatdecoder.h.

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

◆ 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 297 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 300 of file avformatdecoder.h.

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

◆ m_swsCtx

struct SwsContext* AvFormatDecoder::m_swsCtx {nullptr}

protected

Definition at line 245 of file avformatdecoder.h.

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

◆ m_ttd

TeletextDecoder* AvFormatDecoder::m_ttd {nullptr}

protected

Definition at line 282 of file avformatdecoder.h.

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

◆ m_videoCodecId

MythCodecID AvFormatDecoder::m_videoCodecId {kCodec_NONE}

protected

Definition at line 274 of file avformatdecoder.h.

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

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

◆ AddTextData()

◆ AutoSelectAudioTrack()

◆ AutoSelectTrack()

◆ autoSelectVideoTrack()

◆ av_update_stream_timings_video()

◆ CanHandle()

◆ CloseCodecs()

◆ CloseContext()

◆ CodecMap()

◆ DecodeAudio()

◆ DecodeCCx08()

◆ DecoderWillDownmix()

◆ do_av_seek()

◆ DoFastForward()

◆ DoFastForwardSeek()

◆ DoPassThrough()

◆ DoRewind()

◆ DoRewindSeek()

◆ filter_max_ch()

◆ FlagIsSet()

◆ ForceSetupAudioStream()

◆ GenerateDummyVideoFrames()

◆ get_current_AVProgram()

◆ get_current_AVStream_index()

◆ GetAttachmentData()

◆ GetAudioLanguage()

◆ GetAudioTrackType()

◆ GetCaptionLanguage()

◆ GetChapter()

◆ GetChapterTimes()

◆ GetCodecDecoderName()

◆ GetCurrentChapter()

◆ GetFrame()

◆ GetMaxReferenceFrames()

◆ GetNumChapters()

◆ GetRawEncodingType()

◆ GetSubHeader()

◆ GetSubtitleLanguage()

◆ GetTeletextDecoderType()

◆ GetTeletextLanguage()

◆ GetTrackDesc()

◆ GetVideoCodecID()

◆ GetVideoFrameRate()

◆ GetXDS()

◆ H264PreProcessPkt()

◆ HandleGopStart()

◆ HasVideo()

◆ InitVideoCodec()

◆ IsLastFrameKey()

◆ IsValidStream()

◆ MpegPreProcessPkt()

◆ NormalizeVideoTimecode() [1/2]

◆ NormalizeVideoTimecode() [2/2]

◆ OpenAVCodec()

◆ OpenFile()

◆ operator=()

◆ PostProcessTracks()

◆ PreProcessVideoPacket()

◆ ProcessAudioPacket()

◆ ProcessDataPacket()

◆ ProcessDSMCCPacket()

◆ ProcessDVBDataPacket()

◆ ProcessRawTextPacket()

◆ ProcessSubtitlePacket()

◆ ProcessVBIDataPacket()

◆ ProcessVideoFrame()

◆ ProcessVideoPacket()

◆ ReadPacket()