Enum Ac3AudioCodingMode 

pub enum Ac3AudioCodingMode {
    DualMono,
    Mono,
    Stereo,
    ThreeZero,
    TwoOne,
    ThreeOne,
    TwoTwo,
    ThreeTwo,
}

Audio coding mode carried in the 3-bit acmod field.

The enum names the speaker layout in the spec’s front/surround notation; Self::channel_count returns nfchans (the count of full-bandwidth channels, excluding the optional LFE channel).

Variants

DualMono

000 — 1+1 (two independent mono channels, Ch1 + Ch2).

Mono

001 — 1/0 (centre only).

Stereo

010 — 2/0 (left + right stereo).

ThreeZero

011 — 3/0 (left, centre, right).

TwoOne

100 — 2/1 (left, right, mono surround).

ThreeOne

101 — 3/1 (left, centre, right, mono surround).

TwoTwo

110 — 2/2 (left, right, left-surround, right-surround).

ThreeTwo

111 — 3/2 (left, centre, right, left-surround, right-surround).

Implementations

impl Ac3AudioCodingMode

pub fn code(self) -> u8

The raw 3-bit acmod code.

pub fn channel_count(self) -> u8

nfchans — the number of full-bandwidth channels, excluding any LFE. (Add 1 to this for the total channel count when Ac3Header::lfe_on is true.)

pub fn has_center_mix_level(self) -> bool

true for the three modes (3/0, 3/1, 3/2) that carry a centre channel and therefore a cmixlev field — per the (acmod & 0x1) && (acmod != 0x1) rule in the BSI layout.

pub fn has_surround_mix_level(self) -> bool

true for the four modes (2/1, 3/1, 2/2, 3/2) that carry a surround channel and therefore a surmixlev field — per the acmod & 0x4 rule in the BSI layout.

pub fn has_dolby_surround_mode(self) -> bool

true only for the 2/0 stereo mode, which carries the dsurmod Dolby Surround flag — per the acmod == 0x2 rule.

Trait Implementations

impl Clone for Ac3AudioCodingMode

fn clone(&self) -> Ac3AudioCodingMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Ac3AudioCodingMode

impl Debug for Ac3AudioCodingMode

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

Formats the value using the given formatter.

impl Eq for Ac3AudioCodingMode

impl PartialEq for Ac3AudioCodingMode

fn eq(&self, other: &Ac3AudioCodingMode) -> 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 StructuralPartialEq for Ac3AudioCodingMode