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MythPlayerAudioUI Class Reference

Acts as the interface between the UI and the underlying AudioPlayer object. More...

#include <mythplayeraudioui.h>

Inheritance diagram for MythPlayerAudioUI:
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Collaboration diagram for MythPlayerAudioUI:
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Public Slots

void RefreshAudioState ()
 
- Public Slots inherited from MythPlayerOverlayUI
void BrowsingChanged (bool Browsing)
 
void EditingChanged (bool Editing)
 

Signals

void AudioStateChanged (MythAudioState State)
 
- Signals inherited from MythPlayerOverlayUI
void OverlayStateChanged (MythOverlayState OverlayState)
 
- Signals inherited from MythPlayer
void CheckCallbacks ()
 
void SeekingSlow (int Count)
 
void SeekingComplete ()
 
void PauseChanged (bool Paused)
 
void RequestResetCaptions ()
 
void SignalTracksChanged (uint Type)
 

Public Member Functions

 MythPlayerAudioUI (MythMainWindow *MainWindow, TV *Tv, PlayerContext *Context, PlayerFlags Flags)
 
const AudioOutputGraphGetAudioGraph () const
 
void SetupAudioGraph (double VideoFrameRate)
 
void ClearAudioGraph ()
 
- Public Member Functions inherited from MythPlayerOverlayUI
 MythPlayerOverlayUI (MythMainWindow *MainWindow, TV *Tv, PlayerContext *Context, PlayerFlags Flags)
 
 ~MythPlayerOverlayUI () override=default
 
virtual void UpdateSliderInfo (osdInfo &Info, bool PaddedFields=false)
 
OSDGetOSD ()
 
void LockOSD ()
 
void UnlockOSD ()
 
- Public Member Functions inherited from MythPlayerUIBase
 MythPlayerUIBase (MythMainWindow *MainWindow, TV *Tv, PlayerContext *Context, PlayerFlags Flags)
 
- Public Member Functions inherited from MythPlayer
 MythPlayer (PlayerContext *Context, PlayerFlags Flags=kNoFlags)
 
 ~MythPlayer () override
 
virtual int OpenFile (int Retries=4)
 
virtual bool InitVideo (void)
 
virtual void ReinitVideo (bool ForceUpdate)
 
virtual void InitFrameInterval ()
 
void SetLength (int len)
 
void SetFramesPlayed (uint64_t played)
 
void SetEof (EofState eof)
 
void SetWatchingRecording (bool mode)
 
void SetKeyframeDistance (int keyframedistance)
 
virtual void SetVideoParams (int w, int h, double fps, float aspect, bool ForceUpdate, int ReferenceFrames, FrameScanType=kScan_Ignore, const QString &codecName=QString())
 
void SetFileLength (int total, int frames)
 
void SetDuration (int duration)
 
void SetFrameRate (double fps)
 
QSize GetVideoBufferSize (void) const
 
QSize GetVideoSize (void) const
 
float GetVideoAspect (void) const
 
float GetFrameRate (void) const
 
bool IsAudioNeeded (void)
 
int GetFreeVideoFrames (void) const
 Returns the number of frames available for decoding onto. More...
 
int GetFFRewSkip (void) const
 
float GetPlaySpeed (void) const
 
AudioPlayerGetAudio (void)
 
float GetNextPlaySpeed (void) const
 
int GetLength (void) const
 
uint64_t GetTotalFrameCount (void) const
 
uint64_t GetCurrentFrameCount (void) const
 
uint64_t GetFramesPlayed (void) const
 
virtual uint64_t GetBookmark (void)
 
QString GetError (void) const
 
QString GetEncodingType (void) const
 
QString GetXDS (const QString &key) const
 
bool IsPaused (void) const
 
bool GetRawAudioState (void) const
 
bool GetLimitKeyRepeat (void) const
 
EofState GetEof (void) const
 
bool IsErrored (void) const
 
bool IsPlaying (uint wait_in_msec=0, bool wait_for=true) const
 
bool AtNormalSpeed (void) const
 
bool IsReallyNearEnd (void) const
 Returns true iff really near end of recording. More...
 
bool IsNearEnd (void)
 Returns true iff near end of recording. More...
 
bool HasTVChainNext (void) const
 
bool IsWatchingInprogress (void) const
 
virtual InteractiveTVGetInteractiveTV ()
 
MythVideoOutputGetVideoOutput (void)
 
virtual bool SwitchTitle (int)
 
virtual bool NextTitle (void)
 
virtual bool PrevTitle (void)
 
virtual bool SwitchAngle (int)
 
virtual bool NextAngle (void)
 
virtual bool PrevAngle (void)
 
const VideoFrameTypesDirectRenderFormats (void)
 Return a list of frame types that can be rendered directly. More...
 
MythVideoFrameGetNextVideoFrame (void)
 Removes a frame from the available queue for decoding onto. More...
 
void DeLimboFrame (MythVideoFrame *frame)
 
virtual void ReleaseNextVideoFrame (MythVideoFrame *buffer, int64_t timecode, bool wrap=true)
 Places frame on the queue of frames ready for display. More...
 
void DiscardVideoFrame (MythVideoFrame *buffer)
 Places frame in the available frames queue. More...
 
void DiscardVideoFrames (bool KeyFrame, bool Flushed)
 Places frames in the available frames queue. More...
 
DecoderBaseGetDecoder (void)
 Returns the stream decoder currently in use. More...
 
virtual bool HasReachedEof (void) const
 
void SetDisablePassThrough (bool disabled)
 
void ForceSetupAudioStream (void)
 
virtual bool PrepareAudioSample (int64_t &timecode)
 
virtual uint GetCaptionMode () const
 
virtual CC708ReaderGetCC708Reader (uint=0)
 
virtual CC608ReaderGetCC608Reader (uint=0)
 
virtual SubtitleReaderGetSubReader (uint=0)
 
virtual TeletextReaderGetTeletextReader (uint=0)
 
void EnableSubtitles (bool enable)
 
void EnableForcedSubtitles (bool enable)
 
bool ForcedSubtitlesFavored (void) const
 
bool GetAllowForcedSubtitles (void) const
 
void CheckTVChain ()
 
void FileChangedCallback ()
 
virtual int GetNumChapters (void)
 
virtual int GetCurrentChapter (void)
 
virtual void GetChapterTimes (QList< long long > &times)
 
virtual int GetNumTitles (void) const
 
virtual int GetCurrentTitle (void) const
 
virtual int GetTitleDuration (int) const
 
virtual QString GetTitleName (int) const
 
virtual int GetNumAngles (void) const
 
virtual int GetCurrentAngle (void) const
 
virtual QString GetAngleName (int) const
 
virtual bool GoToMenu (const QString &)
 
virtual void GoToDVDProgram (bool direction)
 
virtual bool IsInStillFrame () const
 
bool PosMapFromEnc (uint64_t start, frm_pos_map_t &posMap, frm_pos_map_t &durMap)
 
void SaveTotalDuration (void)
 
void ResetTotalDuration (void)
 
void SaveTotalFrames (void)
 
void SetErrored (const QString &reason)
 

Protected Slots

void InitialiseState () override
 Initialise audio and signal initial state. More...
 
void ChangeMuteState (bool CycleChannels)
 
void ChangeVolume (bool Direction, int Volume)
 
void ResetAudio ()
 
void ReinitAudio ()
 
void EnableUpmix (bool Enable, bool Toggle=false)
 
void PauseAudioUntilBuffered ()
 
void AdjustAudioTimecodeOffset (int64_t Delta, int Value)
 
- Protected Slots inherited from MythPlayerOverlayUI
void UpdateOSDMessage (const QString &Message)
 
void UpdateOSDMessage (const QString &Message, OSDTimeout Timeout)
 
void SetOSDStatus (const QString &Title, OSDTimeout Timeout)
 
void UpdateOSDStatus (osdInfo &Info, int Type, enum OSDTimeout Timeout)
 
void UpdateOSDStatus (const QString &Title, const QString &Desc, const QString &Value, int Type, const QString &Units, int Position, OSDTimeout Timeout)
 
void ChangeOSDPositionUpdates (bool Enable)
 
void UpdateOSDPosition ()
 Update the OSD status/position window. More...
 
- Protected Slots inherited from MythPlayerUIBase
virtual void InitialiseState ()
 

Private Member Functions

void SetupAudioOutput (float TimeStretch)
 

Private Attributes

AudioOutputGraph m_audioGraph
 

Additional Inherited Members

- Public Attributes inherited from MythPlayerUIBase
MythMainWindowm_mainWindow { nullptr }
 
TVm_tv { nullptr }
 
MythRenderm_render { nullptr }
 
MythPainterm_painter { nullptr }
 
MythDisplaym_display { nullptr }
 
- Static Public Attributes inherited from MythPlayer
static const int kNightModeBrightenssAdjustment = 10
 
static const int kNightModeContrastAdjustment = 10
 
static const double kInaccuracyNone = 0
 
static const double kInaccuracyDefault = 0.1
 
static const double kInaccuracyEditor = 0.5
 
static const double kInaccuracyFull = -1.0
 
- Protected Member Functions inherited from MythPlayerOverlayUI
virtual int64_t GetSecondsPlayed (bool HonorCutList, int Divisor=1000)
 
virtual int64_t GetTotalSeconds (bool HonorCutList, int Divisor=1000) const
 
- Protected Member Functions inherited from MythPlayer
void OpenDummy (void)
 
virtual long long CalcMaxFFTime (long long ff, bool setjump=true) const
 CalcMaxFFTime(ffframes): forward ffframes forward. More...
 
long long CalcRWTime (long long rw) const
 CalcRWTime(rw): rewind rw frames back. More...
 
uint64_t TranslatePositionFrameToMs (uint64_t position, bool use_cutlist) const
 
uint64_t TranslatePositionMsToFrame (uint64_t position, bool use_cutlist) const
 
uint64_t TranslatePositionAbsToRel (uint64_t position) const
 
uint64_t TranslatePositionRelToAbs (uint64_t position) const
 
float ComputeSecs (uint64_t position, bool use_cutlist) const
 
uint64_t FindFrame (float offset, bool use_cutlist) const
 
void SetAutoCommercialSkip (CommSkipMode autoskip)
 
void SkipCommercials (int direction)
 
void SetCommBreakMap (frm_dir_map_t &newMap)
 
CommSkipMode GetAutoCommercialSkip (void)
 
virtual void ResetPlaying (bool resetframes=true)
 
virtual void StopPlaying (void)
 
bool PauseDecoder (void)
 
void UnpauseDecoder (void)
 
bool Pause (void)
 
bool Play (float speed=1.0, bool normal=true, bool unpauseaudio=true)
 
virtual bool FastForward (float seconds)
 
virtual bool Rewind (float seconds)
 
virtual bool JumpToFrame (uint64_t frame)
 
void JumpChapter (int chapter)
 
virtual bool PrebufferEnoughFrames (int min_buffers=0)
 
void SetBuffering (bool new_buffering)
 
virtual void VideoEnd (void)
 
virtual void DecoderStart (bool start_paused)
 
virtual void DecoderLoop (bool pause)
 
virtual void DecoderEnd (void)
 
virtual void DecoderPauseCheck (void)
 
virtual void AudioEnd (void)
 
bool GetEditMode (void) const
 
bool IsInDelete (uint64_t frame)
 
void SetPlayingInfo (const ProgramInfo &pginfo)
 
void SetPlaying (bool is_playing)
 
void ResetErrored (void)
 
void PauseVideo (void)
 
void UnpauseVideo (void)
 
void PauseBuffer (void)
 
void UnpauseBuffer (void)
 
virtual void CreateDecoder (TestBufferVec &TestBuffer)
 
void SetDecoder (DecoderBase *dec)
 Sets the stream decoder, deleting any existing recorder. More...
 
const DecoderBaseGetDecoder (void) const
 Returns the stream decoder currently in use. More...
 
virtual bool DecoderGetFrameFFREW (void)
 
virtual bool DecoderGetFrameREW (void)
 
bool DecoderGetFrame (DecodeType decodetype, bool unsafe=false)
 
bool DoGetFrame (DecodeType DecodeType)
 Get one frame from the decoder. More...
 
bool UpdateFFRewSkip (void)
 
virtual void ChangeSpeed (void)
 
bool DoFastForward (uint64_t frames, double inaccuracy)
 
bool DoRewind (uint64_t frames, double inaccuracy)
 
void DoJumpToFrame (uint64_t frame, double inaccuracy)
 
void WaitForSeek (uint64_t frame, uint64_t seeksnap_wanted)
 
void ClearAfterSeek (bool clearvideobuffers=true)
 This is to support seeking... More...
 
void ClearBeforeSeek (uint64_t Frames)
 Discard video frames prior to seeking. More...
 
virtual bool DoJumpChapter (int chapter)
 
virtual int64_t GetChapter (int chapter)
 
void WrapTimecode (int64_t &timecode, TCTypes tc_type)
 
void SetFrameInterval (FrameScanType scan, double frame_period)
 
- Protected Attributes inherited from MythPlayerOverlayUI
OSD m_osd
 
QMutex m_osdLock { QMutex::Recursive }
 
bool m_browsing { false }
 
bool m_editing { false }
 
bool m_reinitOsd { false }
 
- Protected Attributes inherited from MythPlayer
DecoderBasem_decoder {nullptr}
 
QMutex m_decoderChangeLock {QMutex::Recursive}
 
MythVideoOutputm_videoOutput {nullptr}
 
PlayerContextm_playerCtx {nullptr}
 
MythDecoderThreadm_decoderThread {nullptr}
 
QThread * m_playerThread {nullptr}
 
PlayerFlags m_playerFlags
 
QWaitCondition m_decoderThreadPause
 
QWaitCondition m_decoderThreadUnpause
 
QMutex m_decoderPauseLock
 
QMutex m_decoderSeekLock
 
QMutex m_bufferPauseLock
 
QMutex m_videoPauseLock
 
QMutex m_pauseLock
 
int64_t m_decoderSeek {-1}
 
bool m_totalDecoderPause {false}
 
bool m_decoderPaused {false}
 
bool m_inJumpToProgramPause {false}
 
bool m_pauseDecoder {false}
 
bool m_unpauseDecoder {false}
 
bool volatile m_killDecoder {false}
 
bool m_decodeOneFrame {false}
 
bool m_needNewPauseFrame {false}
 
bool m_bufferPaused {false}
 
bool m_videoPaused {false}
 
bool m_allPaused {false}
 
bool m_playing {false}
 
QWaitCondition m_playingWaitCond
 
QMutex m_vidExitLock
 
QMutex m_playingLock
 
QMutex m_errorLock
 
QString m_errorMsg
 Reason why NVP exited with a error. More...
 
int m_errorType {kError_None}
 
bool m_liveTV {false}
 
bool m_watchingRecording {false}
 
bool m_transcoding {false}
 
bool m_hasFullPositionMap {false}
 
bool m_limitKeyRepeat {false}
 
int m_jumpChapter {0}
 
uint64_t m_bookmarkSeek {0}
 
int m_clearSavedPosition {1}
 
int m_endExitPrompt
 
long long m_ffTime {0}
 If m_ffTime>0, number of frames to seek forward. More...
 
int m_videobufRetries {0}
 How often we have tried to wait for a video output buffer and failed. More...
 
uint64_t m_framesPlayed {0}
 
uint64_t m_totalFrames {0}
 
long long m_totalLength {0}
 
int64_t m_totalDuration {0}
 
long long m_rewindTime {0}
 
int64_t m_latestVideoTimecode {-1}
 
MythPlayerAVSync m_avSync
 
double m_videoFrameRate {29.97}
 Video (input) Frame Rate (often inaccurate) More...
 
QString m_codecName
 Codec Name - used by playback profile. More...
 
QSize m_videoDispDim {0,0}
 Video (input) width & height. More...
 
QSize m_videoDim {0,0}
 Video (input) buffer width & height. More...
 
int m_maxReferenceFrames {0}
 Number of reference frames used in the video stream. More...
 
float m_videoAspect {4.0F / 3.0F}
 Video (input) Apect Ratio. More...
 
float m_forcedVideoAspect {-1}
 
uint m_keyframeDist {30}
 Video (input) Number of frames between key frames (often inaccurate) More...
 
bool m_buffering {false}
 
QTime m_bufferingStart
 
QTime m_bufferingLastMsg
 
uint m_vbiMode {VBIMode::None}
 VBI decoder to use. More...
 
int m_ttPageNum {0x888}
 VBI page to display when in PAL vbimode. More...
 
SubtitleReader m_subReader
 
TeletextReader m_ttxReader
 
bool m_captionsEnabledbyDefault {false}
 This allows us to enable captions/subtitles later if the streams are not immediately available when the video starts playing. More...
 
bool m_enableCaptions {false}
 
bool m_disableCaptions {false}
 
bool m_enableForcedSubtitles {false}
 
bool m_disableForcedSubtitles {false}
 
bool m_allowForcedSubtitles {true}
 
CC608Reader m_cc608
 
CC708Reader m_cc708
 
AudioPlayer m_audio
 
CommBreakMap m_commBreakMap
 
bool m_forcePositionMapSync {false}
 
DeleteMap m_deleteMap
 
QMutex m_decoderLock {QMutex::Recursive}
 Lock for next_play_speed and next_normal_speed. More...
 
float m_nextPlaySpeed {1.0F}
 
float m_playSpeed {1.0F}
 
int m_frameInterval {static_cast<int>((1000000.0F / 30))}
 always adjusted for play_speed More...
 
int m_fpsMultiplier {1}
 used to detect changes More...
 
int m_ffrewSkip {1}
 
int m_ffrewAdjust {0}
 
bool m_fileChanged {false}
 
bool m_nextNormalSpeed {true}
 
bool m_normalSpeed {true}
 
tctype_arr m_tcWrap {}
 
int64_t m_savedAudioTimecodeOffset {0}
 
bool m_isDummy {false}
 
int m_bufferingCounter {0}
 

Detailed Description

Acts as the interface between the UI and the underlying AudioPlayer object.

Changes to the audio state (e.g. volume changes) are signalled from the parent TV object. Any subsequent change in state is signalled back via the AudioStateChanged signal.

As such, the public API is limited and is largely restricted to access to the AudioGraph, as required by the OSD/Edit mode.

Any other objects that are interested in the audio state should connect to the AudioStateChanged signal and retrieve the initial state via GetAudioState.

Note
This could/should be extended to include track data and current source/output metadata.
Upmixing status (MythAudioState::m_canUpmix and MythAudioState::m_isUpmixing) appears to be working as expected but is not extensively tested. As far as I can tell, upmixing state/support only changes when the underlying audio object is reconfigured - which is restricted to ToggleUpmix and ReinitAudio - both of which are captured.

Definition at line 9 of file mythplayeraudioui.h.

Constructor & Destructor Documentation

◆ MythPlayerAudioUI()

MythPlayerAudioUI::MythPlayerAudioUI ( MythMainWindow MainWindow,
TV Tv,
PlayerContext Context,
PlayerFlags  Flags 
)

Definition at line 30 of file mythplayeraudioui.cpp.

Member Function Documentation

◆ AudioStateChanged

void MythPlayerAudioUI::AudioStateChanged ( MythAudioState  State)
signal

◆ RefreshAudioState

void MythPlayerAudioUI::RefreshAudioState ( )
slot

Definition at line 67 of file mythplayeraudioui.cpp.

Referenced by MythNavigationOverlay::Create().

◆ InitialiseState

void MythPlayerAudioUI::InitialiseState ( )
overrideprotectedslot

Initialise audio and signal initial state.

Definition at line 60 of file mythplayeraudioui.cpp.

Referenced by MythPlayerCaptionsUI::InitialiseState().

◆ ChangeMuteState

void MythPlayerAudioUI::ChangeMuteState ( bool  CycleChannels)
protectedslot

Definition at line 125 of file mythplayeraudioui.cpp.

Referenced by MythPlayerAudioUI().

◆ ChangeVolume

void MythPlayerAudioUI::ChangeVolume ( bool  Direction,
int  Volume 
)
protectedslot

Definition at line 103 of file mythplayeraudioui.cpp.

Referenced by MythPlayerAudioUI().

◆ ResetAudio

void MythPlayerAudioUI::ResetAudio ( void  )
protectedslot

Definition at line 72 of file mythplayeraudioui.cpp.

Referenced by MythPlayerAudioUI().

◆ ReinitAudio

void MythPlayerAudioUI::ReinitAudio ( void  )
protectedslot

Definition at line 78 of file mythplayeraudioui.cpp.

Referenced by InitialiseState(), and MythPlayerAudioUI().

◆ EnableUpmix

void MythPlayerAudioUI::EnableUpmix ( bool  Enable,
bool  Toggle = false 
)
protectedslot

Definition at line 153 of file mythplayeraudioui.cpp.

Referenced by MythPlayerAudioUI().

◆ PauseAudioUntilBuffered

void MythPlayerAudioUI::PauseAudioUntilBuffered ( void  )
protectedslot

Definition at line 169 of file mythplayeraudioui.cpp.

Referenced by MythPlayerAudioUI().

◆ AdjustAudioTimecodeOffset

void MythPlayerAudioUI::AdjustAudioTimecodeOffset ( int64_t  Delta,
int  Value 
)
protectedslot

Definition at line 183 of file mythplayeraudioui.cpp.

Referenced by MythPlayerAudioUI().

◆ GetAudioGraph()

const AudioOutputGraph & MythPlayerAudioUI::GetAudioGraph ( ) const

Definition at line 84 of file mythplayeraudioui.cpp.

Referenced by OSD::SetGraph().

◆ SetupAudioGraph()

void MythPlayerAudioUI::SetupAudioGraph ( double  VideoFrameRate)

Definition at line 89 of file mythplayeraudioui.cpp.

Referenced by MythPlayerUI::EnableEdit().

◆ ClearAudioGraph()

void MythPlayerAudioUI::ClearAudioGraph ( )

Definition at line 97 of file mythplayeraudioui.cpp.

Referenced by MythPlayerUI::DisableEdit().

◆ SetupAudioOutput()

void MythPlayerAudioUI::SetupAudioOutput ( float  TimeStretch)
private

Definition at line 174 of file mythplayeraudioui.cpp.

Referenced by MythPlayerAudioUI().

Member Data Documentation

◆ m_audioGraph

AudioOutputGraph MythPlayerAudioUI::m_audioGraph
private

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