Enum png::AdaptiveFilterType

#[repr(u8)]
pub enum AdaptiveFilterType {
    Adaptive = 0,
    NonAdaptive = 1,
}

Adaptive filtering tries every possible filter for each row and uses a heuristic to select the best one. This improves compression ratio, but makes encoding slightly slower.

It is recommended to use Adaptive whenever you care about compression ratio. Filtering is quite cheap compared to other parts of encoding, but can contribute to the compression ratio significantly.

NonAdaptive filtering is the default.

Variants

Adaptive = 0

NonAdaptive = 1

Trait Implementations

impl Clone for AdaptiveFilterType

fn clone(&self) -> AdaptiveFilterType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for AdaptiveFilterType

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

Formats the value using the given formatter.

impl Default for AdaptiveFilterType

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for AdaptiveFilterType

fn eq(&self, other: &AdaptiveFilterType) -> 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 AdaptiveFilterType

impl Eq for AdaptiveFilterType

impl StructuralPartialEq for AdaptiveFilterType