Struct Cea708Decoder 

pub struct Cea708Decoder { /* private fields */ }

Available on crate feature decode only.

CEA-708 (DTVCC) caption decoder.

Feed it CcTriplets (or raw cc_data byte pairs) from the DTVCC stream (cc_type 2/3); read decoded window text per service via service_text / windows.

use dvb_cc::decode::Cea708Decoder;
let mut dec = Cea708Decoder::new();
// A CCP (header + service-1 block) carrying the DefineWindow worked example
// for window 2: 0x9A 38 4A D1 8B 0F 11.
dec.push_packet(&[0x05, 0x27, 0x9A, 0x38, 0x4A, 0xD1, 0x8B, 0x0F, 0x11]);
let w = &dec.windows(1)[2];
assert!(w.is_some());

Implementations

impl Cea708Decoder

pub fn new() -> Self

A new decoder with no services defined.

pub fn reset(&mut self)

Reset every service (§8.9.5 packet-loss recovery / RST).

pub fn push_triplets<'a, I>(&mut self, triplets: I)

where I: IntoIterator<Item = &'a CcTriplet>,

Feed the decoder the 708 (DTVCC) triplets of a crate::CcData.

A cc_type == Dtvcc708Start triplet begins a new Caption Channel Packet; Dtvcc708Data triplets continue it. Invalid triplets are skipped.

pub fn push_packet(&mut self, ccp: &[u8])

Feed one complete Caption Channel Packet (the CCP header byte followed by its data bytes). Useful for testing / when packets are pre-assembled.

pub fn windows(&self, service_number: usize) -> &[Option<Window>; 8]

Read the windows of a service (1–6). Returns an empty array view for an out-of-range service number.

pub fn service_text(&self, service_number: usize) -> String

All decoded text for a service (1–6), visible-window text joined with \n in window-priority order (0 = highest first), then by window ID.

Trait Implementations

impl Clone for Cea708Decoder

fn clone(&self) -> Cea708Decoder

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Cea708Decoder

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

Formats the value using the given formatter.

impl Default for Cea708Decoder

fn default() -> Self

Returns the “default value” for a type.

impl Eq for Cea708Decoder

impl PartialEq for Cea708Decoder

fn eq(&self, other: &Cea708Decoder) -> 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 Serialize for Cea708Decoder

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Cea708Decoder