Struct libpulse_binding::sample::Spec

#[repr(C)]
pub struct Spec {
    pub format: Format,
    pub rate: u32,
    pub channels: u8,
}

A sample format and attribute specification

Fields

format: Format

The sample format.

rate: u32

The sample rate. (e.g. 44100).

channels: u8

Audio channels. (1 for mono, 2 for stereo, ...).

Methods

impl Spec

pub fn init(&mut self)

Initialize the specified sample spec. The sample spec will have a defined state but is_valid will fail for it.

pub fn is_valid(&self) -> bool

Returns true when the sample type specification is valid

pub fn equal_to(&self, to: &Self) -> bool

Returns true when the two sample type specifications match

pub fn bytes_per_second(&self) -> usize

Returns the amount of bytes that constitute playback of one second of audio, with the specified sample type.

pub fn frame_size(&self) -> usize

Returns the size of a frame

pub fn sample_size(&self) -> usize

Returns the size of a sample

pub fn bytes_to_usec(&self, length: u64) -> MicroSeconds

Calculate the time it would take to play a buffer of the specified size. The return value will always be rounded down for non-integral return values.

pub fn usec_to_bytes(&self, t: MicroSeconds) -> usize

Calculates the size of a buffer required, for playback duration of the time specified. The return value will always be rounded down for non-integral return values.

pub fn print(&self) -> String

Pretty print a sample type specification to a string

Trait Implementations

impl Debug for Spec

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

Formats the value using the given formatter.

impl Copy for Spec

impl Clone for Spec

fn clone(&self) -> Spec

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq for Spec

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Eq for Spec