Struct AspectRatioIdc

#[repr(transparent)]
pub struct AspectRatioIdc(pub u8);

The AspectRatioIdc is a nutype enum for aspect_ratio_idc as defined in ISO/IEC-14496-10-2022 - E.2.1 Table E-1.

Values 17..=254** are reserved (should be ignored if encountered) Value 255 (ExtendedSar) indicates that the aspect ratio is specified by additional fields (sar_width and sar_height) in the bitstream.

Examples of aspect_ratio_idc values:

• 1 => 1:1 (“square”)
• 4 => 16:11
• 14 => 4:3
• 15 => 3:2
• 16 => 2:1

Tuple Fields

0: u8

Implementations

impl AspectRatioIdc

pub const Unspecified: Self

0: Unspecified (not used in decoding)

pub const Square: Self

1: 1:1 (square)

Examples

• 7680 x 4320 16:9 w/o horizontal overscan
• 3840 x 2160 16:9 w/o horizontal overscan
• 1280 x 720 16:9 w/o horizontal overscan
• 1920 x 1080 16:9 w/o horizontal overscan (cropped from 1920x1088)
• 640 x 480 4:3 w/o horizontal overscan

pub const Aspect12_11: Self

2: 12:11

Examples

• 720 x 576 4:3 with horizontal overscan
• 352 x 288 4:3 w/o horizontal overscan

pub const Aspect10_11: Self

3: 10:11

Examples

• 720 x 480 4:3 with horizontal overscan
• 352 x 240 4:3 w/o horizontal overscan

pub const Aspect16_11: Self

4: 16:11

Examples

• 720 x 576 16:9 with horizontal overscan
• 528 x 576 4:3 w/o horizontal overscan

pub const Aspect40_33: Self

5: 40:33

Examples

• 720 x 480 16:9 with horizontal overscan
• 528 x 480 4:3 w/o horizontal overscan

pub const Aspect24_11: Self

6: 24:11

Examples

• 352 x 576 4:3 w/o horizontal overscan
• 480 x 576 16:9 with horizontal overscan

pub const Aspect20_11: Self

7: 20:11

Examples

• 352 x 480 4:3 w/o horizontal overscan
• 480 x 480 16:9 with horizontal overscan

pub const Aspect32_11: Self

8: 32:11

Example

• 352 x 576 16:9 w/o horizontal overscan

pub const Aspect80_33: Self

9: 80:33

Example

• 352 x 480 16:9 w/o horizontal overscan

pub const Aspect18_11: Self

10: 18:11

Example

• 480 x 576 16:9 with horizontal overscan

pub const Aspect15_11: Self

11: 15:11

Example

• 480 x 480 4:3 with horizontal overscan

pub const Aspect64_33: Self

12: 64:33

Example

• 528 x 576 16:9 w/o horizontal overscan

pub const Aspect160_99: Self

13: 160:99

Example

• 528 x 480 16:9 w/o horizontal overscan

pub const Aspect4_3: Self

14: 4:3

Example

• 1440 x 1080 16:9 w/o horizontal overscan

pub const Aspect3_2: Self

15: 3:2

Example

• 1280 x 1080 16:9 w/o horizontal overscan

pub const Aspect2_1: Self

16: 2:1

Example

• 960 x 1080 16:9 w/o horizontal overscan

pub const Reserved: Self

17..=254: Reserved (should be ignored)

pub const ExtendedSar: Self

255: Extended SAR (use sar_width & sar_height from bitstream)

Trait Implementations

impl Clone for AspectRatioIdc

fn clone(&self) -> AspectRatioIdc

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for AspectRatioIdc

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

Formats the value using the given formatter.

impl From<AspectRatioIdc> for u8

fn from(value: AspectRatioIdc) -> Self

Converts to this type from the input type.

impl From<u8> for AspectRatioIdc

fn from(value: u8) -> Self

Converts to this type from the input type.

impl Hash for AspectRatioIdc

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 Ord for AspectRatioIdc

fn cmp(&self, other: &AspectRatioIdc) -> 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 PartialEq for AspectRatioIdc

fn eq(&self, other: &AspectRatioIdc) -> 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 PartialOrd for AspectRatioIdc

fn partial_cmp(&self, other: &AspectRatioIdc) -> 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 Copy for AspectRatioIdc

impl Eq for AspectRatioIdc

impl StructuralPartialEq for AspectRatioIdc