Struct VFrameTs

pub struct VFrameTs<V> {
    pub ts: VideoTs,
    /* private fields */
}

A VideoTs timestamp wrapper with a constraint to the V: VideoFrame, implementing methods and traits for timestamp calculations.

Fields

ts: VideoTs

The current value of the timestamp.

Implementations

impl<V: VideoFrame> VFrameTs<V>

pub const EOF: VFrameTs<V>

The end-of-frame timestamp, equal to the total number of T-states per frame.

pub fn new(vc: Ts, hc: Ts) -> Self

Constructs a new VFrameTs from the given vertical and horizontal counter values.

Note: The returned VFrameTs is not normalized.

pub fn is_normalized(self) -> bool

Returns true if a video timestamp is normalized. Otherwise returns false.

pub fn normalized(self) -> Self

Normalizes self with a horizontal counter within the allowed range and a scan line counter adjusted accordingly.

Panics

Panics when an attempt to normalize leads to an overflow of the capacity of VideoTs.

pub fn saturating_normalized(self) -> Self

Returns a video timestamp with a horizontal counter within the allowed range and a scan line counter adjusted accordingly. Saturates at VFrameTs::min_value or VFrameTs::max_value.

pub fn max_value() -> Self

Returns the largest value that can be represented by a normalized timestamp.

pub fn min_value() -> Self

Returns the smallest value that can be represented by a normalized timestamp.

pub fn is_eof(self) -> bool

Returns true if the counter value is past or near the end of a frame. Otherwise returns false.

Specifically, the condition is met if the vertical counter is equal to or greater than VideoFrame::VSL_COUNT.

pub fn wrap_frame(&mut self)

Ensures the vertical counter is in the range: (-VSL_COUNT, VSL_COUNT) by calculating a remainder of the division of the vertical counter by VideoFrame::VSL_COUNT.

pub fn saturating_sub_frame(self) -> Self

Returns a video timestamp after subtracting the total number of frame video scanlines from the scan line counter.

pub fn from_tstates(ts: FTs) -> Self

Returns a normalized timestamp from the given number of T-states.

Panics

Panics when the given ts overflows the capacity of the timestamp.

pub fn try_from_tstates(ts: FTs) -> Option<Self>

On success returns a normalized timestamp from the given number of T-states.

Returns None when the given ts overflows the capacity of the timestamp.

pub fn into_tstates(self) -> FTs

Converts the timestamp to FTs.

pub fn into_frame_tstates(self, frames: u64) -> (u64, FTs)

Returns a tuple with an adjusted frame counter and with the frame-normalized timestamp as the number of T-states measured from the start of the frame.

The frame starts when the horizontal and vertical counter are both 0.

The returned timestamp value is in the range [0, VideoFrame::FRAME_TSTATES_COUNT).

Trait Implementations

impl<V: VideoFrame> Add<i32> for VFrameTs<V>

fn add(self, delta: FTs) -> Self

Returns a normalized video timestamp after adding delta T-states.

Panics

Panics when normalized timestamp after addition leads to an overflow of the capacity of VideoTs.

type Output = VFrameTs<V>

The resulting type after applying the + operator.

impl<V: VideoFrame> Add<u32> for VFrameTs<V>

fn add(self, delta: u32) -> Self

Returns a normalized video timestamp after adding a delta T-state count.

Panics

Panics when normalized timestamp after addition leads to an overflow of the capacity of VideoTs.

type Output = VFrameTs<V>

The resulting type after applying the + operator.

impl<V: VideoFrame> AddAssign<i32> for VFrameTs<V>

fn add_assign(&mut self, delta: FTs)

Performs the += operation.

impl<V: VideoFrame> AddAssign<u32> for VFrameTs<V>

fn add_assign(&mut self, delta: u32)

Performs the += operation.

impl<V> Clone for VFrameTs<V>

fn clone(&self) -> Self

Returns a duplicate of the value.

const fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<V: Debug> Debug for VFrameTs<V>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<V> Default for VFrameTs<V>

fn default() -> Self

Returns the “default value” for a type.

impl<V> Deref for VFrameTs<V>

type Target = VideoTs

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<V> DerefMut for VFrameTs<V>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl<'de, V> Deserialize<'de> for VFrameTs<V>

where V: VideoFrame,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<V: VideoFrame> From<&VideoTsData1> for VFrameTs<V>

fn from(vtsd: &VideoTsData1) -> Self

Converts to this type from the input type.

impl<V: VideoFrame> From<&VideoTsData2> for VFrameTs<V>

fn from(vtsd: &VideoTsData2) -> Self

Converts to this type from the input type.

impl<V: VideoFrame> From<&VideoTsData3> for VFrameTs<V>

fn from(vtsd: &VideoTsData3) -> Self

Converts to this type from the input type.

impl<V: VideoFrame> From<&VideoTsData6> for VFrameTs<V>

fn from(vtsd: &VideoTsData6) -> Self

Converts to this type from the input type.

impl<V> From<VFrameTs<V>> for VideoTs

fn from(vfts: VFrameTs<V>) -> VideoTs

Converts to this type from the input type.

impl<V: VideoFrame> From<VFrameTs<V>> for FTs

fn from(vfts: VFrameTs<V>) -> FTs

Converts to this type from the input type.

impl<V, C> From<VFrameTsCounter<V, C>> for VFrameTs<V>

fn from(vftsc: VFrameTsCounter<V, C>) -> VFrameTs<V>

Converts to this type from the input type.

impl<V> From<VideoTs> for VFrameTs<V>

fn from(ts: VideoTs) -> Self

Returns a VFrameTs from the given VideoTs. A returned VFrameTs is not being normalized.

Panics

Panics when the given ts overflows the capacity of VideoTs.

impl<V: VideoFrame> From<VideoTsData1> for VFrameTs<V>

fn from(vtsd: VideoTsData1) -> Self

Converts to this type from the input type.

impl<V: VideoFrame> From<VideoTsData2> for VFrameTs<V>

fn from(vtsd: VideoTsData2) -> Self

Converts to this type from the input type.

impl<V: VideoFrame> From<VideoTsData3> for VFrameTs<V>

fn from(vtsd: VideoTsData3) -> Self

Converts to this type from the input type.

impl<V: VideoFrame> From<VideoTsData6> for VFrameTs<V>

fn from(vtsd: VideoTsData6) -> Self

Converts to this type from the input type.

impl<V> Hash for VFrameTs<V>

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<V> Ord for VFrameTs<V>

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<V> PartialEq for VFrameTs<V>

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<V> PartialOrd for VFrameTs<V>

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<V> Serialize for VFrameTs<V>

where V: VideoFrame,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<V: VideoFrame> Sub<i32> for VFrameTs<V>

fn sub(self, delta: FTs) -> Self

Returns a normalized video timestamp after subtracting delta T-states.

Panics

Panics when normalized timestamp after addition leads to an overflow of the capacity of VideoTs.

type Output = VFrameTs<V>

The resulting type after applying the - operator.

impl<V: VideoFrame> Sub<u32> for VFrameTs<V>

fn sub(self, delta: u32) -> Self

Returns a normalized video timestamp after adding a delta T-state count.

Panics

Panics when normalized timestamp after addition leads to an overflow of the capacity of VideoTs.

type Output = VFrameTs<V>

The resulting type after applying the - operator.

impl<V: VideoFrame> SubAssign<i32> for VFrameTs<V>

fn sub_assign(&mut self, delta: FTs)

Performs the -= operation.

impl<V: VideoFrame> SubAssign<u32> for VFrameTs<V>

fn sub_assign(&mut self, delta: u32)

Performs the -= operation.

impl<V: VideoFrame> TimestampOps for VFrameTs<V>

fn saturating_add(self, other: Self) -> Self

Panics

May panic if self or other hasn’t been normalized.

fn saturating_sub(self, other: Self) -> Self

Panics

May panic if self or other hasn’t been normalized.

fn from_tstates(ts: FTs) -> Self

Returns a normalized timestamp from the given number of T-states.

fn into_tstates(self) -> FTs

Converts the timestamp to FTs.

fn max_value() -> Self

Returns the largest value that can be represented by a normalized timestamp.

fn min_value() -> Self

Returns the smallest value that can be represented by a normalized timestamp.

fn diff_from(self, vts_from: Self) -> FTs

Returns the difference between ts_from and self in the number of T-states.

impl<V: VideoFrame> TryFrom<i32> for VFrameTs<V>

type Error = &'static str

The type returned in the event of a conversion error.

fn try_from(ts: FTs) -> Result<Self, Self::Error>

Performs the conversion.

impl<V: Copy> Copy for VFrameTs<V>

impl<V> Eq for VFrameTs<V>