Enum symphonia_core::meta::Limit

pub enum Limit {
    None,
    Default,
    Maximum(usize),
}

Limit defines an upper-bound on how much of a resource should be allocated when the amount to be allocated is specified by the media stream, which is untrusted. A limit will place an upper-bound on this allocation at the risk of breaking potentially valid streams. Limits are used to prevent denial-of-service attacks.

All limits can be defaulted to a reasonable value specific to the situation. These defaults will generally not break any normal streams.

Variants

None

Do not impose any limit.

Default

Use the a reasonable default specified by the FormatReader or Decoder implementation.

Maximum(usize)

Specify the upper limit of the resource. Units are case specific.

Implementations

impl Limit

pub fn limit_or_default(&self, default: usize) -> Option<usize>

Gets the numeric limit of the limit, or default value. If there is no limit, None is returned.

Trait Implementations

impl Clone for Limit

fn clone(&self) -> Limit

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Limit

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

Formats the value using the given formatter.

impl Default for Limit

fn default() -> Self

Returns the “default value” for a type.

impl Copy for Limit