StormByte::Multimedia::FFmpeg::AVSubtitle Class Reference

RAII wrapper for AVSubtitle (avsubtitle_free). More...

#include <StormByte/multimedia/ffmpeg/AVSubtitle.hxx>

Public Member Functions
	AVSubtitle () noexcept
	Empty subtitle.
	AVSubtitle (const AVSubtitle &)=delete
	Copy constructor (deleted).
	AVSubtitle (AVSubtitle &&other) noexcept
	Move constructor.
	~AVSubtitle () noexcept
	Destructor.
AVSubtitle &	operator= (const AVSubtitle &)=delete
	Copy assignment (deleted).
AVSubtitle &	operator= (AVSubtitle &&other) noexcept
	Move assignment.
std::int64_t	Pts () const noexcept
	Presentation timestamp in AV_TIME_BASE.
std::uint32_t	DisplayDurationMs () const noexcept
	Display duration in milliseconds.
std::string	Text () const noexcept
	Concatenated text / ASS from rects.
void	FillText (std::string text, std::int64_t pts, std::uint32_t duration_ms, bool ass) noexcept
	Builds one text or ASS rectangle for encoding.
void	Free () noexcept
	Releases rects (avsubtitle_free).

Friends
class	AVDecoder
class	AVEncoder
std::optional< StormByte::Multimedia::OCR::GrayBitmap >	StormByte::Multimedia::OCR::GrayFromSubtitle (const AVSubtitle &sub) noexcept

Detailed Description

RAII wrapper for AVSubtitle (avsubtitle_free).

Constructor & Destructor Documentation

AVSubtitle() [1/3]

StormByte::Multimedia::FFmpeg::AVSubtitle::AVSubtitle ( )

noexcept

Empty subtitle.

AVSubtitle() [2/3]

StormByte::Multimedia::FFmpeg::AVSubtitle::AVSubtitle ( const AVSubtitle &  )

delete

Copy constructor (deleted).

AVSubtitle() [3/3]

StormByte::Multimedia::FFmpeg::AVSubtitle::AVSubtitle ( AVSubtitle &&  other )

noexcept

Move constructor.

Parameters

other

Source subtitle.

~AVSubtitle()

StormByte::Multimedia::FFmpeg::AVSubtitle::~AVSubtitle ( )

noexcept

Destructor.

Member Function Documentation

DisplayDurationMs()

std::uint32_t StormByte::Multimedia::FFmpeg::AVSubtitle::DisplayDurationMs ( ) const

noexcept

Display duration in milliseconds.

Returns

end_display_time - start_display_time, or 0.

FillText()

void StormByte::Multimedia::FFmpeg::AVSubtitle::FillText ( std::string  text, std::int64_t  pts, std::uint32_t  duration_ms, bool  ass  )

noexcept

Builds one text or ASS rectangle for encoding.

Parameters

text	Cue body.
pts	Timestamp in AV_TIME_BASE.
duration_ms	Display window in milliseconds.
ass	true writes SUBTITLE_ASS, false writes SUBTITLE_TEXT.

Free()

void StormByte::Multimedia::FFmpeg::AVSubtitle::Free ( )

noexcept

Releases rects (avsubtitle_free).

operator=() [1/2]

AVSubtitle & StormByte::Multimedia::FFmpeg::AVSubtitle::operator= ( AVSubtitle &&  other )

noexcept

Move assignment.

Parameters

other

Source subtitle.

Returns

*this.

operator=() [2/2]

AVSubtitle & StormByte::Multimedia::FFmpeg::AVSubtitle::operator= ( const AVSubtitle &  )

delete

Copy assignment (deleted).

Returns

*this.

Pts()

std::int64_t StormByte::Multimedia::FFmpeg::AVSubtitle::Pts ( ) const

noexcept

Presentation timestamp in AV_TIME_BASE.

Returns

PTS, or AV_NOPTS_VALUE.

Text()

std::string StormByte::Multimedia::FFmpeg::AVSubtitle::Text ( ) const

noexcept

Concatenated text / ASS from rects.

Returns

UTF-8 text, or empty.

Friends And Related Symbol Documentation

AVDecoder

friend class AVDecoder

friend

AVEncoder

friend class AVEncoder

friend

StormByte::Multimedia::OCR::GrayFromSubtitle

std::optional< StormByte::Multimedia::OCR::GrayBitmap > StormByte::Multimedia::OCR::GrayFromSubtitle ( const AVSubtitle &  sub )

friend

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

• lib/public/StormByte/multimedia/ffmpeg/AVSubtitle.hxx