Struct AncContent 

pub struct AncContent {
    pub did: u16,
    pub sdid: u16,
    pub data_count: u16,
    pub user_data_words: Vec<u16>,
    pub checksum: u16,
}

One ST 291-1 ANC data packet’s content: DID/SDID/Data_Count/ User_Data_Words/Checksum_Word, every value the raw 10-bit wire word (including the ST 291-1 parity bits) stored verbatim — parity/checksum are not computed or validated here (docs/anc_packet_291.md scope note).

Identical across ST 2038 (MPEG-2 TS/PES) and RFC 8331 (RTP) carriage; see the module doc for why this type is always compiled.

Fields

did: u16

DID (10-bit raw, incl. ST 291-1 parity bits).

sdid: u16

SDID (10-bit raw). For a “Type 1” ANC packet this word actually carries the data block number (DBN).

data_count: u16

Data_Count (10-bit raw). The User_Data_Words loop counter uses only the low 8 bits (data_count & 0xFF).

user_data_words: Vec<u16>

User_Data_Words (each 10-bit raw). Length is data_count & 0xFF.

checksum: u16

Checksum_Word (10-bit raw, ST 291-1 checksum — not validated here).

Implementations

impl AncContent

pub fn udw_loop_count(&self) -> usize

The User_Data_Words loop count actually used on the wire: the low 8 bits of data_count, independent of the stored Vec’s length.

Trait Implementations

impl Clone for AncContent

fn clone(&self) -> AncContent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AncContent

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

Formats the value using the given formatter.

impl Eq for AncContent

impl PartialEq for AncContent

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for AncContent

Available on crate feature serde only.

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 AncContent