Struct Pcm 

pub struct Pcm {
    pub samples: Vec<i16>,
    pub channels: u16,
    pub frame_rate: u32,
}

Interleaved i16 samples plus the format they were decoded at.

Fields

samples: Vec<i16>

channels: u16

frame_rate: u32

Implementations

impl Pcm

pub fn new(samples: Vec<i16>, channels: u16, frame_rate: u32) -> Pcm

pub fn from_s16le(bytes: &[u8], channels: u16, frame_rate: u32) -> Pcm

Decode raw little-endian s16le bytes. A trailing odd byte is dropped, as reading 16-bit frames necessarily does.

pub fn frame_count(&self) -> usize

Frames, i.e. samples divided by channels (len(_data) // frame_width).

pub fn len_ms(&self) -> i64

len(segment) — duration in whole milliseconds, rounded.

pub fn rms(&self) -> i64

audioop.rms — int(sqrt(sum(v²)/n)), accumulated in f64 and truncated toward zero.

pub fn max_abs(&self) -> i64

audioop.max — the largest absolute sample. -32768 yields 32768, which is why this is not an i16.

pub fn dbfs(&self) -> f64

segment.dBFS — RMS relative to full scale. -inf for silence.

pub fn max_dbfs(&self) -> f64

segment.max_dBFS — peak sample relative to full scale.

pub fn slice_ms(&self, start_ms: i64, end_ms: i64) -> Pcm

segment[start_ms:end_ms]. Both ends clamp to the segment length, and the frame index is int(ms * rate / 1000).

pydub pads a short tail with silence so the slice is the length the caller asked for; that only happens mid-buffer, never at the end, so slicing the final partial chunk returns what is actually there.

fn frame_for_ms(&self, ms: i64) -> usize

_parse_position — int(ms * frame_rate / 1000.0).

Trait Implementations

impl Clone for Pcm

fn clone(&self) -> Pcm

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Pcm

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

Formats the value using the given formatter.

impl PartialEq for Pcm

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Pcm