av::Timestamp Class Reference

The Timestamp class represents timestamp value and it timebase. More...

#include <timestamp.h>

Public Member Functions
	Timestamp () noexcept
	Timestamp (int64_t timestamp, const Rational &timebase) noexcept
template<typename Duration , typename = typename Duration::period, typename = std::enable_if_t<std::is_integral_v<typename Duration::rep>>>
constexpr	Timestamp (const Duration &duration)
	Create AvCpp/FFmpeg compatible timestamp value from the std::chrono::duration/boost::chrono::duration. More...
template<typename Duration , typename PrecisionPeriod , typename = typename Duration::period, typename = std::enable_if_t<std::is_floating_point_v<typename Duration::rep>>>
constexpr	Timestamp (const Duration &duration, PrecisionPeriod)
	Create AvCpp/FFmpeg compatible timestamp value from the floating point std::chrono::duration/boost::chrono::duration with given precision. More...
template<typename Duration , typename = typename Duration::period, typename = std::enable_if_t<std::is_floating_point_v<typename Duration::rep>>>
constexpr	Timestamp (const Duration &duration, const Rational &timebase)
	Create AvCpp/FFmpeg compatible timestamp value from the floating point std::chrono::duration/boost::chrono::duration with given precision. More...
int64_t	timestamp () const noexcept
int64_t	timestamp (const Rational &timebase) const noexcept
const Rational &	timebase () const noexcept
	operator bool () const noexcept
bool	isValid () const noexcept
bool	isNoPts () const noexcept
	operator double () const noexcept
double	seconds () const noexcept
template<typename Duration , typename = typename Duration::period, typename = typename Duration::rep>
constexpr Duration	toDuration () const
	Convert to the std::chrono::duration compatible value. More...
Timestamp &	operator+= (const Timestamp &other)
Timestamp &	operator-= (const Timestamp &other)
Timestamp &	operator*= (const Timestamp &other)
Timestamp &	operator/= (const Timestamp &other)

Detailed Description

The Timestamp class represents timestamp value and it timebase.

Timestamp class can be treated as Fixed Point time representation where timestamp itself is a value and Time Base is a multiplicator. Be careful with construct Timestamp from the std::chrono::duration with floating point rep

Constructor & Destructor Documentation

Timestamp() [1/5]

av::Timestamp::Timestamp ( )

noexcept

Timestamp() [2/5]

av::Timestamp::Timestamp ( int64_t  timestamp, const Rational &  timebase  )

noexcept

Timestamp() [3/5]

template<typename Duration , typename = typename Duration::period, typename = std::enable_if_t<std::is_integral_v<typename Duration::rep>>>

constexpr av::Timestamp::Timestamp ( const Duration &  duration )

inlineconstexpr

Create AvCpp/FFmpeg compatible timestamp value from the std::chrono::duration/boost::chrono::duration.

Duration class must not be a floating point to avoid lost precision: Timestamp in the FFmpeg internally are int64_t with integer AVRAtional as timebase that also uses int64_t internally to store numerator and denominator.

Timestamp() [4/5]

template<typename Duration , typename PrecisionPeriod , typename = typename Duration::period, typename = std::enable_if_t<std::is_floating_point_v<typename Duration::rep>>>

constexpr av::Timestamp::Timestamp ( const Duration &  duration, PrecisionPeriod    )

inlineconstexpr

Create AvCpp/FFmpeg compatible timestamp value from the floating point std::chrono::duration/boost::chrono::duration with given precision.

PrecisionPeriod defines holded TimeBase

Timestamp() [5/5]

template<typename Duration , typename = typename Duration::period, typename = std::enable_if_t<std::is_floating_point_v<typename Duration::rep>>>

constexpr av::Timestamp::Timestamp ( const Duration &  duration, const Rational &  timebase  )

inlineconstexpr

Create AvCpp/FFmpeg compatible timestamp value from the floating point std::chrono::duration/boost::chrono::duration with given precision.

Member Function Documentation

isNoPts()

bool av::Timestamp::isNoPts ( ) const

noexcept

isValid()

bool av::Timestamp::isValid ( ) const

noexcept

operator bool()

av::Timestamp::operator bool ( ) const

noexcept

operator double()

av::Timestamp::operator double ( ) const

noexcept

operator*=()

Timestamp & av::Timestamp::operator*=

(

const Timestamp &

other

)

operator+=()

Timestamp & av::Timestamp::operator+=

(

const Timestamp &

other

)

operator-=()

Timestamp & av::Timestamp::operator-=

(

const Timestamp &

other

)

operator/=()

Timestamp & av::Timestamp::operator/=

(

const Timestamp &

other

)

seconds()

double av::Timestamp::seconds ( ) const

noexcept

timebase()

const Rational & av::Timestamp::timebase ( ) const

noexcept

timestamp() [1/2]

int64_t av::Timestamp::timestamp ( ) const

noexcept

timestamp() [2/2]

int64_t av::Timestamp::timestamp ( const Rational &  timebase ) const

noexcept

toDuration()

template<typename Duration , typename = typename Duration::period, typename = typename Duration::rep>

constexpr Duration av::Timestamp::toDuration ( ) const

inlineconstexpr

Convert to the std::chrono::duration compatible value.

It possible to convert to the floating point duration without additional casts.

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

• src/avcpp/timestamp.h
• src/avcpp/timestamp.cpp