Struct View 

pub struct View {
    pub channels: Vec<usize>,
    pub start: u64,
    pub end: u64,
    pub width: usize,
}

A window of a recording drawn width columns wide.

Fields

channels: Vec<usize>

start: u64

First sample.

end: u64

One past the last sample.

width: usize

Pixel columns.

Implementations

impl View

pub fn samples(&self) -> u64

Samples in the window.

pub fn columns(&self) -> Columns

The window split evenly into width columns.

pub fn validate(&self, channels: usize, samples: u64) -> DspResult<()>

Checks the view against a recording of channels × samples.

pub fn read( &self, source: &dyn RecordingSource, pyramid: Option<&Pyramid>, ) -> DspResult<Envelope>

The view’s contents, as cheaply as is exact (see Self::read_into).

pub fn read_into( &self, source: &dyn RecordingSource, pyramid: Option<&Pyramid>, out: &mut Envelope, ) -> DspResult<()>

The view’s contents into out, reusing its buffer, as cheaply as is exact:

• fewer samples than columns: the samples, read from source;
• columns of at least the pyramid’s base: from pyramid (no samples read);
• otherwise (finer columns, or no pyramid): the samples read from source and folded into columns, streamed in blocks of at most RAW_BLOCK_VALUES values aligned to the source’s storage chunks (each chunk decoded once), the next block read while the current one is folded. Memory stays bounded however long the window.

Trait Implementations

impl Clone for View

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for View

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

Formats the value using the given formatter.

impl Eq for View

impl PartialEq for View

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for View