DecoderBase Class Reference

#include <decoderbase.h>

Inheritance diagram for DecoderBase:

Detailed Description

Definition at line 57 of file decoderbase.h.


Public Member Functions
	DecoderBase (NuppelVideoPlayer parent, ProgramInfo pginfo)
virtual	~DecoderBase ()
virtual void	Reset (void)
virtual int	OpenFile (RingBuffer *rbuffer, bool novideo, char testbuf[kDecoderProbeBufferSize], int testbufsize=kDecoderProbeBufferSize)=0
void	setExactSeeks (bool exact)
void	setLiveTVMode (bool live)
void	setRecorder (RemoteEncoder *recorder)
void	SetProgramInfo (ProgramInfo *pginfo)
void	SetLowBuffers (bool low)
virtual void	SetDisablePassThrough (bool disable)
	Disables AC3/DTS pass through.
virtual void	setWatchingRecording (bool mode)
virtual bool	GetFrame (int onlyvideo)=0
	Decode a frame of video/audio.
NuppelVideoPlayer *	GetNVP ()
virtual bool	DoRewind (long long desiredFrame, bool doflush=true)
virtual bool	DoFastForward (long long desiredFrame, bool doflush=true)
	Skips ahead or rewinds to desiredFrame.
virtual bool	isLastFrameKey ()=0
virtual void	WriteStoredData (RingBuffer *rb, bool storevid, long timecodeOffset)=0
virtual void	ClearStoredData (void)
virtual void	SetRawAudioState (bool state)
virtual bool	GetRawAudioState (void) const
virtual void	SetRawVideoState (bool state)
virtual bool	GetRawVideoState (void) const
virtual long	UpdateStoredFrameNum (long frame)=0
virtual double	GetFPS (void) const
uint	GetRawBitrate (void) const
	Returns the estimated bitrate if the video were played at normal speed.
virtual void	UpdateFramesPlayed (void)
long long	GetFramesRead (void) const
virtual QString	GetCodecDecoderName (void) const =0
virtual MythCodecID	GetVideoCodecID (void) const =0
virtual void *	GetVideoCodecPrivate (void)
virtual bool	SyncPositionMap (void)
	Updates the position map used for skipping frames.
virtual bool	PosMapFromDb (void)
virtual bool	PosMapFromEnc (void)
virtual bool	FindPosition (long long desired_value, bool search_adjusted, int &lower_bound, int &upper_bound)
virtual void	SetPositionMap (void)
virtual void	SeekReset (long long newkey, uint skipFrames, bool doFlush, bool discardFrames)
void	setTranscoding (bool value)
bool	IsErrored ()
void	SetWaitForChange (void)
bool	GetWaitForChange (void)
void	SetReadAdjust (long long adjust)
void	ChangeDVDTrack (bool ffw)
long long	DVDFindPosition (long long desiredFrame)
void	UpdateDVDFramesPlayed (void)
virtual QStringList	GetTracks (uint type) const
virtual uint	GetTrackCount (uint type) const
virtual int	GetTrackLanguageIndex (uint type, uint trackNo) const
virtual QString	GetTrackDesc (uint type, uint trackNo) const
virtual int	SetTrack (uint type, int trackNo)
int	GetTrack (uint type) const
StreamInfo	GetTrackInfo (uint type, uint trackNo) const
int	IncrementTrack (uint type)
int	DecrementTrack (uint type)
int	ChangeTrack (uint type, int dir)
virtual bool	InsertTrack (uint type, const StreamInfo &)
virtual int	GetTeletextDecoderType (void) const
virtual void	SetTeletextDecoderViewer (TeletextViewer *)
virtual QString	GetXDS (const QString &) const
virtual bool	SetAudioByComponentTag (int)
virtual bool	SetVideoByComponentTag (int)
Protected Types
typedef struct DecoderBase::posmapentry	PosMapEntry
Protected Member Functions
virtual int	AutoSelectTrack (uint type)
	Select best track.
void	AutoSelectTracks (void)
void	ResetTracks (void)
void	FileChanged (void)
bool	DoRewindSeek (long long desiredFrame)
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.
long long	GetLastFrameInPosMap (long long desiredFrame)
long long	GetKey (PosMapEntry &entry) const
Protected Attributes
NuppelVideoPlayer *	m_parent
ProgramInfo *	m_playbackinfo
RingBuffer *	ringBuffer
RemoteEncoder *	nvr_enc
int	current_width
int	current_height
float	current_aspect
double	fps
uint	bitrate
long long	framesPlayed
long long	framesRead
long long	lastKey
int	keyframedist
long long	indexOffset
bool	ateof
bool	exitafterdecoded
bool	transcoding
bool	hasFullPositionMap
bool	recordingHasPositionMap
bool	posmapStarted
MarkTypes	positionMapType
QValueVector< PosMapEntry >	m_positionMap
bool	dontSyncPositionMap
bool	exactseeks
bool	livetv
bool	watchingrecording
bool	hasKeyFrameAdjustTable
bool	lowbuffers
bool	getrawframes
bool	getrawvideo
bool	errored
bool	waitingForChange
long long	readAdjust
bool	justAfterChange
int	currentTrack [kTrackTypeCount]
sinfo_vec_t	tracks [kTrackTypeCount]
StreamInfo	wantedTrack [kTrackTypeCount]
StreamInfo	selectedTrack [(uint) kTrackTypeCount]
vector< int >	languagePreference
	language preferences for auto-selection of streams
Classes
struct	posmapentry

Member Typedef Documentation

typedef struct DecoderBase::posmapentry DecoderBase::PosMapEntry [protected]

Constructor & Destructor Documentation

DecoderBase::DecoderBase	(	NuppelVideoPlayer *	parent,
		ProgramInfo *	pginfo
	)

Definition at line 20 of file decoderbase.cpp.

DecoderBase::~DecoderBase ( ) [virtual]

Definition at line 56 of file decoderbase.cpp.

Member Function Documentation

void DecoderBase::Reset ( void ) [virtual]

Reimplemented in AvFormatDecoder.

Definition at line 72 of file decoderbase.cpp.

Referenced by AvFormatDecoder::Reset(), and NuppelVideoPlayer::ResetPlaying().

virtual int DecoderBase::OpenFile	(	RingBuffer *	rbuffer,
		bool	novideo,
		char	testbuf[kDecoderProbeBufferSize],
		int	testbufsize = `kDecoderProbeBufferSize`
	)			`[pure virtual]`

Implemented in AvFormatDecoder, IvtvDecoder, and NuppelDecoder.

Referenced by NuppelVideoPlayer::OpenFile().

void DecoderBase::setExactSeeks ( bool exact ) [inline]

Definition at line 69 of file decoderbase.h.

Referenced by NuppelVideoPlayer::DoFastForward(), NuppelVideoPlayer::DoKeypress(), NuppelVideoPlayer::DoPause(), NuppelVideoPlayer::DoPlay(), NuppelVideoPlayer::DoRewind(), NuppelVideoPlayer::HandleArbSeek(), NuppelVideoPlayer::InitForTranscode(), NuppelVideoPlayer::JumpToFrame(), NuppelVideoPlayer::JumpToProgram(), NuppelVideoPlayer::OpenFile(), and NuppelVideoPlayer::StartPlaying().

void DecoderBase::setLiveTVMode ( bool live ) [inline]

Definition at line 70 of file decoderbase.h.

Referenced by NuppelVideoPlayer::OpenFile().

void DecoderBase::setRecorder ( RemoteEncoder * recorder ) [inline]

Definition at line 71 of file decoderbase.h.

Referenced by NuppelVideoPlayer::OpenFile(), and NuppelVideoPlayer::SetRecorder().

void DecoderBase::SetProgramInfo ( ProgramInfo * pginfo )

Definition at line 62 of file decoderbase.cpp.

Referenced by NuppelVideoPlayer::FileChangedCallback(), NuppelVideoPlayer::JumpToProgram(), and NuppelVideoPlayer::SwitchToProgram().

void DecoderBase::SetLowBuffers ( bool low ) [inline]

Definition at line 76 of file decoderbase.h.

Referenced by NuppelVideoPlayer::InitForTranscode(), NuppelVideoPlayer::InitVideo(), AvFormatDecoder::InitVideoCodec(), and NuppelVideoPlayer::OpenFile().

virtual void DecoderBase::SetDisablePassThrough ( bool disable ) [inline, virtual]

Disables AC3/DTS pass through.

Reimplemented in AvFormatDecoder.

Definition at line 78 of file decoderbase.h.

Referenced by NuppelVideoPlayer::DoPlay().

void DecoderBase::setWatchingRecording ( bool mode ) [virtual]

Definition at line 88 of file decoderbase.cpp.

Referenced by NuppelVideoPlayer::OpenFile(), and NuppelVideoPlayer::SetWatchingRecording().

virtual bool DecoderBase::GetFrame ( int onlyvideo ) [pure virtual]

Decode a frame of video/audio.

If onlyvideo is +1, decodes the video portion, if it is -1 only decodes the audio portion, if it is 0 it decodes audio and video

Implemented in AvFormatDecoder, DummyDecoder, IvtvDecoder, and NuppelDecoder.

Referenced by DoFastForward(), NuppelVideoPlayer::GetFrameFFREW(), and NuppelVideoPlayer::TranscodeGetNextFrame().

NuppelVideoPlayer* DecoderBase::GetNVP ( ) [inline]

Definition at line 85 of file decoderbase.h.

bool DecoderBase::DoRewind	(	long long	desiredFrame,
		bool	doflush = `true`
	)			`[virtual]`

Reimplemented in AvFormatDecoder.

Definition at line 432 of file decoderbase.cpp.

Referenced by DoFastForward(), NuppelVideoPlayer::DoPlay(), NuppelVideoPlayer::DoRewind(), AvFormatDecoder::DoRewind(), and NuppelVideoPlayer::GetFrameFFREW().

bool DecoderBase::DoFastForward	(	long long	desiredFrame,
		bool	doflush = `true`
	)			`[virtual]`

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 in AvFormatDecoder, and IvtvDecoder.

Definition at line 545 of file decoderbase.cpp.

Referenced by NuppelVideoPlayer::DoFastForward(), IvtvDecoder::DoFastForward(), AvFormatDecoder::DoFastForward(), NuppelVideoPlayer::DoPause(), NuppelVideoPlayer::GetFrameFFREW(), and NuppelVideoPlayer::TranscodeGetNextFrame().

virtual bool DecoderBase::isLastFrameKey ( ) [pure virtual]

Implemented in AvFormatDecoder, DummyDecoder, IvtvDecoder, and NuppelDecoder.

Referenced by NuppelVideoPlayer::TranscodeGetNextFrame().

virtual void DecoderBase::WriteStoredData	(	RingBuffer *	rb,
		bool	storevid,
		long	timecodeOffset
	)			`[pure virtual]`

Implemented in AvFormatDecoder, DummyDecoder, IvtvDecoder, and NuppelDecoder.

Referenced by NuppelVideoPlayer::WriteStoredData().

virtual void DecoderBase::ClearStoredData ( void ) [inline, virtual]

Reimplemented in NuppelDecoder.

Definition at line 93 of file decoderbase.h.

Referenced by NuppelVideoPlayer::TranscodeGetNextFrame().

virtual void DecoderBase::SetRawAudioState ( bool state ) [inline, virtual]

Reimplemented in AvFormatDecoder, and IvtvDecoder.

Definition at line 94 of file decoderbase.h.

Referenced by NuppelVideoPlayer::InitForTranscode().

virtual bool DecoderBase::GetRawAudioState ( void ) const [inline, virtual]

Reimplemented in AvFormatDecoder, and IvtvDecoder.

Definition at line 95 of file decoderbase.h.

Referenced by NuppelVideoPlayer::GetRawAudioState().

virtual void DecoderBase::SetRawVideoState ( bool state ) [inline, virtual]

Reimplemented in AvFormatDecoder, and IvtvDecoder.

Definition at line 96 of file decoderbase.h.

Referenced by NuppelVideoPlayer::InitForTranscode().

virtual bool DecoderBase::GetRawVideoState ( void ) const [inline, virtual]

Reimplemented in AvFormatDecoder, and IvtvDecoder.

Definition at line 97 of file decoderbase.h.

virtual long DecoderBase::UpdateStoredFrameNum ( long frame ) [pure virtual]

Implemented in AvFormatDecoder, DummyDecoder, IvtvDecoder, and NuppelDecoder.

Referenced by NuppelVideoPlayer::UpdateStoredFrameNum().

virtual double DecoderBase::GetFPS ( void ) const [inline, virtual]

Definition at line 101 of file decoderbase.h.

Referenced by NuppelVideoPlayer::IsReallyNearEnd().

uint DecoderBase::GetRawBitrate ( void ) const [inline]

Returns the estimated bitrate if the video were played at normal speed.

Definition at line 103 of file decoderbase.h.

Referenced by NuppelDecoder::GetFrame(), NuppelDecoder::OpenFile(), and IvtvDecoder::OpenFile().

void DecoderBase::UpdateFramesPlayed ( void ) [virtual]

Reimplemented in IvtvDecoder.

Definition at line 671 of file decoderbase.cpp.

Referenced by NuppelVideoPlayer::Pause(), and NuppelVideoPlayer::StartPlaying().

long long DecoderBase::GetFramesRead ( void ) const [inline]

Definition at line 106 of file decoderbase.h.

Referenced by NuppelVideoPlayer::GetFrameFFREW(), and NuppelVideoPlayer::IsNearEnd().

virtual QString DecoderBase::GetCodecDecoderName ( void ) const [pure virtual]

Implemented in AvFormatDecoder, DummyDecoder, IvtvDecoder, and NuppelDecoder.

Referenced by NuppelVideoPlayer::SetDecoder().

virtual MythCodecID DecoderBase::GetVideoCodecID ( void ) const [pure virtual]

Implemented in AvFormatDecoder, DummyDecoder, IvtvDecoder, and NuppelDecoder.

Referenced by NuppelVideoPlayer::GetEncodingType().

virtual void* DecoderBase::GetVideoCodecPrivate ( void ) [inline, virtual]

Reimplemented in AvFormatDecoder.

Definition at line 110 of file decoderbase.h.

bool DecoderBase::SyncPositionMap ( void ) [virtual]

Updates the position map used for skipping frames.

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

positionmap sources: live tv: 1. remote encoder 2. stream parsing decide keyframedist based on samples from remote encoder

watching recording: 1. initial fill from db 2. incremental from remote encoder, until it finishes recording 3. then db again (which should be the final time) 4. stream parsing decide keyframedist based on which table in db

watching prerecorded: 1. initial fill from db is all that's needed

Reimplemented in DummyDecoder.

Definition at line 282 of file decoderbase.cpp.

Referenced by NuppelVideoPlayer::FileChangedCallback(), AvFormatDecoder::GetFrame(), GetLastFrameInPosMap(), AvFormatDecoder::HandleGopStart(), NuppelVideoPlayer::JumpToProgram(), NuppelDecoder::OpenFile(), IvtvDecoder::OpenFile(), AvFormatDecoder::OpenFile(), AvFormatDecoder::Reset(), setWatchingRecording(), NuppelVideoPlayer::StartPlaying(), and NuppelVideoPlayer::SwitchToProgram().

bool DecoderBase::PosMapFromDb ( void ) [virtual]

Definition at line 101 of file decoderbase.cpp.

Referenced by SyncPositionMap().

bool DecoderBase::PosMapFromEnc ( void ) [virtual]

Definition at line 182 of file decoderbase.cpp.

Referenced by SyncPositionMap().

bool DecoderBase::FindPosition	(	long long	desired_value,
		bool	search_adjusted,
		int &	lower_bound,
		int &	upper_bound
	)			`[virtual]`

Definition at line 362 of file decoderbase.cpp.

Referenced by DoFastForwardSeek(), and DoRewindSeek().

void DecoderBase::SetPositionMap ( void ) [virtual]

Definition at line 420 of file decoderbase.cpp.

Referenced by NuppelVideoPlayer::RebuildSeekTable().

void DecoderBase::SeekReset	(	long long	newkey,
		uint	skipFrames,
		bool	doFlush,
		bool	discardFrames
	)			`[virtual]`

Reimplemented in AvFormatDecoder, IvtvDecoder, and NuppelDecoder.

Definition at line 83 of file decoderbase.cpp.

Referenced by ChangeDVDTrack(), DoFastForward(), DoRewind(), Reset(), NuppelDecoder::SeekReset(), IvtvDecoder::SeekReset(), and AvFormatDecoder::SeekReset().

void DecoderBase::setTranscoding ( bool value ) [inline]

Definition at line 123 of file decoderbase.h.

Referenced by NuppelVideoPlayer::OpenFile(), and NuppelVideoPlayer::SetTranscoding().

bool DecoderBase::IsErrored ( ) [inline]

Definition at line 125 of file decoderbase.h.

Referenced by AvFormatDecoder::GetFrame(), NuppelVideoPlayer::ResetPlaying(), and AvFormatDecoder::ScanStreams().

void DecoderBase::SetWaitForChange ( void )

Definition at line 693 of file decoderbase.cpp.

Referenced by NuppelVideoPlayer::SwitchToProgram().

bool DecoderBase::GetWaitForChange ( void )

Definition at line 698 of file decoderbase.cpp.

Referenced by NuppelVideoPlayer::StartPlaying().

void DecoderBase::SetReadAdjust ( long long adjust )

Definition at line 688 of file decoderbase.cpp.

Referenced by NuppelVideoPlayer::SwitchToProgram().

void DecoderBase::ChangeDVDTrack ( bool ffw )

Definition at line 703 of file decoderbase.cpp.

Referenced by NuppelVideoPlayer::DoChangeDVDTrack().

long long DecoderBase::DVDFindPosition ( long long desiredFrame )

Definition at line 726 of file decoderbase.cpp.

Referenced by DoFastForwardSeek(), and DoRewindSeek().

void DecoderBase::UpdateDVDFramesPlayed ( void )

Definition at line 758 of file decoderbase.cpp.

Referenced by ChangeDVDTrack(), NuppelVideoPlayer::DoPlay(), NuppelVideoPlayer::FastForward(), AvFormatDecoder::GetFrame(), NuppelVideoPlayer::GetFrameFFREW(), and NuppelVideoPlayer::Rewind().

QStringList DecoderBase::GetTracks ( uint type ) const [virtual]

Definition at line 768 of file decoderbase.cpp.

Referenced by NuppelVideoPlayer::GetTracks().

virtual uint DecoderBase::GetTrackCount ( uint type ) const [inline, virtual]

Definition at line 138 of file decoderbase.h.

Referenced by NuppelVideoPlayer::ChangeCaptionTrack(), AvFormatDecoder::ScanStreams(), and NuppelVideoPlayer::SetCaptionsEnabled().

int DecoderBase::GetTrackLanguageIndex	(	uint	type,
		uint	trackNo
	)			const `[virtual]`

Definition at line 780 of file decoderbase.cpp.

Referenced by NuppelVideoPlayer::EnableCaptions().

QString DecoderBase::GetTrackDesc	(	uint	type,
		uint	trackNo
	)			const `[virtual]`

Reimplemented in AvFormatDecoder.

Definition at line 788 of file decoderbase.cpp.

Referenced by NuppelVideoPlayer::ChangeTrack(), NuppelVideoPlayer::DisableCaptions(), NuppelVideoPlayer::EnableCaptions(), AvFormatDecoder::GetTrackDesc(), GetTracks(), and NuppelVideoPlayer::SetTrack().

int DecoderBase::SetTrack	(	uint	type,
		int	trackNo
	)			`[virtual]`

Reimplemented in AvFormatDecoder.

Definition at line 810 of file decoderbase.cpp.

Referenced by DecrementTrack(), IncrementTrack(), NuppelVideoPlayer::SetTrack(), and AvFormatDecoder::SetTrack().

int DecoderBase::GetTrack ( uint type ) const [inline]

Definition at line 144 of file decoderbase.h.

Referenced by NuppelVideoPlayer::GetTrack().

StreamInfo DecoderBase::GetTrackInfo	(	uint	type,
		uint	trackNo
	)			const

Definition at line 830 of file decoderbase.cpp.

Referenced by NuppelVideoPlayer::SetTrack().

int DecoderBase::IncrementTrack ( uint type ) [inline]

Definition at line 236 of file decoderbase.h.

Referenced by ChangeTrack().

int DecoderBase::DecrementTrack ( uint type ) [inline]

Definition at line 245 of file decoderbase.h.

Referenced by ChangeTrack().

int DecoderBase::ChangeTrack	(	uint	type,
		int	dir
	)			`[inline]`

Definition at line 254 of file decoderbase.h.

bool DecoderBase::InsertTrack	(	uint	type,
		const StreamInfo &	info
	)			`[virtual]`

Definition at line 843 of file decoderbase.cpp.

Referenced by NuppelVideoPlayer::DefineWindow().

virtual int DecoderBase::GetTeletextDecoderType ( void ) const [inline, virtual]

Reimplemented in AvFormatDecoder.

Definition at line 151 of file decoderbase.h.

virtual void DecoderBase::SetTeletextDecoderViewer ( TeletextViewer * ) [inline, virtual]

Reimplemented in AvFormatDecoder.

Definition at line 152 of file decoderbase.h.

Referenced by NuppelVideoPlayer::EnableTeletext(), and NuppelVideoPlayer::StartPlaying().

virtual QString DecoderBase::GetXDS ( const QString & ) const [inline, virtual]

Reimplemented in AvFormatDecoder.

Definition at line 154 of file decoderbase.h.

Referenced by NuppelVideoPlayer::GetXDS().

virtual bool DecoderBase::SetAudioByComponentTag ( int ) [inline, virtual]

Reimplemented in AvFormatDecoder.

Definition at line 157 of file decoderbase.h.

Referenced by NuppelVideoPlayer::SetAudioByComponentTag().

virtual bool DecoderBase::SetVideoByComponentTag ( int ) [inline, virtual]

Reimplemented in AvFormatDecoder.

Definition at line 158 of file decoderbase.h.

Referenced by NuppelVideoPlayer::SetVideoByComponentTag().

int DecoderBase::AutoSelectTrack ( uint type ) [protected, virtual]

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 in AvFormatDecoder.

Definition at line 874 of file decoderbase.cpp.

Referenced by AvFormatDecoder::AutoSelectTrack(), and AutoSelectTracks().

void DecoderBase::AutoSelectTracks ( void ) [inline, protected]

Definition at line 262 of file decoderbase.h.

Referenced by AvFormatDecoder::GetFrame(), and AvFormatDecoder::OpenFile().

void DecoderBase::ResetTracks ( void ) [inline, protected]

Definition at line 268 of file decoderbase.h.

Referenced by DecoderBase(), and AvFormatDecoder::ScanStreams().

void DecoderBase::FileChanged ( void ) [protected]

Definition at line 676 of file decoderbase.cpp.

Referenced by NuppelDecoder::GetFrame(), AvFormatDecoder::GetFrame(), and IvtvDecoder::ReadWrite().

bool DecoderBase::DoRewindSeek ( long long desiredFrame ) [protected]

Definition at line 470 of file decoderbase.cpp.

Referenced by DoRewind().

void DecoderBase::DoFastForwardSeek	(	long long	desiredFrame,
		bool &	needflush
	)			`[protected]`

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: