Enum AVChromaLocation

#[non_exhaustive]
#[repr(u32)]
pub enum AVChromaLocation {
    AVCHROMA_LOC_UNSPECIFIED = 0,
    AVCHROMA_LOC_LEFT = 1,
    AVCHROMA_LOC_CENTER = 2,
    AVCHROMA_LOC_TOPLEFT = 3,
    AVCHROMA_LOC_TOP = 4,
    AVCHROMA_LOC_BOTTOMLEFT = 5,
    AVCHROMA_LOC_BOTTOM = 6,
    AVCHROMA_LOC_NB = 7,
}

Available on crate feature dep_ffmpeg only.

Location of chroma samples.

Illustration showing the location of the first (top left) chroma sample of the image, the left shows only luma, the right shows the location of the chroma sample, the 2 could be imagined to overlay each other but are drawn separately due to limitations of ASCII

            1st 2nd       1st 2nd horizontal luma sample positions
             v   v         v   v
             ______        ______

1st luma line > |X X … |3 4 X … X are luma samples, | |1 2 1-6 are possible chroma positions 2nd luma line > |X X … |5 6 X … 0 is undefined/unknown position

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

AVCHROMA_LOC_UNSPECIFIED = 0

AVCHROMA_LOC_LEFT = 1

< MPEG-2/4 4:2:0, H.264 default for 4:2:0

AVCHROMA_LOC_CENTER = 2

< MPEG-1 4:2:0, JPEG 4:2:0, H.263 4:2:0

AVCHROMA_LOC_TOPLEFT = 3

< ITU-R 601, SMPTE 274M 296M S314M(DV 4:1:1), mpeg2 4:2:2

AVCHROMA_LOC_TOP = 4

AVCHROMA_LOC_BOTTOMLEFT = 5

AVCHROMA_LOC_BOTTOM = 6

AVCHROMA_LOC_NB = 7

< Not part of ABI

Implementations

impl AVChromaLocation

pub fn from_c_int(n: i32) -> Option<AVChromaLocation>

Trait Implementations

impl Clone for AVChromaLocation

fn clone(&self) -> AVChromaLocation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AVChromaLocation

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

Formats the value using the given formatter.

impl From<AVChromaLocation> for Location

fn from(value: AVChromaLocation) -> Location

Converts to this type from the input type.

impl From<Location> for AVChromaLocation

fn from(value: Location) -> AVChromaLocation

Converts to this type from the input type.

impl Hash for AVChromaLocation

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

where __H: Hasher,

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 PartialEq for AVChromaLocation

fn eq(&self, other: &AVChromaLocation) -> 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 Copy for AVChromaLocation

impl Eq for AVChromaLocation

impl StructuralPartialEq for AVChromaLocation