Struct SpliceInfoSection 

pub struct SpliceInfoSection<'a> {
    pub sap_type: u8,
    pub protocol_version: u8,
    pub encrypted_packet: bool,
    pub encryption_algorithm: u8,
    pub pts_adjustment: u64,
    pub cw_index: u8,
    pub tier: u16,
    pub clear: Option<ClearPayload<'a>>,
    pub encrypted_payload: Option<&'a [u8]>,
}

splice_info_section() — §9.6, Table 5.

Fields

sap_type: u8

2-bit sap_type (§9.6.1, Table 6); 0x3 = SAP type not specified.

protocol_version: u8

8-bit protocol_version (0 is the only valid value at present).

encrypted_packet: bool

encrypted_packet flag (§9.6.1).

encryption_algorithm: u8

6-bit encryption_algorithm (§11.3, Table 29). Undefined when not encrypted.

pts_adjustment: u64

33-bit pts_adjustment (90 kHz ticks), added (wrapping) to every pts_time in the message.

cw_index: u8

8-bit cw_index. Undefined when not encrypted.

tier: u16

12-bit tier (§9.6.1); 0xFFF shall be ignored downstream.

clear: Option<ClearPayload<'a>>

The clear command + descriptor loop, present when encrypted_packet is false.

encrypted_payload: Option<&'a [u8]>

The raw encrypted region (splice_command_type through E_CRC_32), present when encrypted_packet is true. Not decrypted by this crate.

Implementations

impl<'a> SpliceInfoSection<'a>

pub fn new_clear(command: AnyCommand<'a>, descriptor_loop: &'a [u8]) -> Self

Build a clear (unencrypted) section from a command and a raw descriptor loop, with pts_adjustment/tier defaulted to zero / 0x3 sap_type.

pub fn descriptors(&self) -> SpliceDescriptorIter<'a>

Walk the splice descriptor loop, yielding typed AnySpliceDescriptors. Empty when the section is encrypted.

pub fn pts_adjustment_duration(&self) -> Duration

The pts_adjustment decoded to a Duration.

pub fn set_pts_adjustment_duration(&mut self, d: Duration) -> Result<()>

Set pts_adjustment from a Duration (truncating to 90 kHz ticks). Errors if it exceeds the 33-bit range.

pub fn tier_is_ignored(&self) -> bool

True if tier == 0xFFF, which downstream equipment shall ignore.

Trait Implementations

impl<'a> Clone for SpliceInfoSection<'a>

fn clone(&self) -> SpliceInfoSection<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for SpliceInfoSection<'a>

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

Formats the value using the given formatter.

impl<'a> Eq for SpliceInfoSection<'a>

impl<'a> Parse<'a> for SpliceInfoSection<'a>

type Error = Error

The error type this implementer returns. Typically the enclosing crate’s Error enum.

fn parse(bytes: &'a [u8]) -> Result<Self>

Parse bytes as Self. Returns Err(Self::Error) on any protocol violation or buffer underrun.

impl<'a> PartialEq for SpliceInfoSection<'a>

fn eq(&self, other: &SpliceInfoSection<'a>) -> 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<'a> Serialize for SpliceInfoSection<'a>

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Serialize for SpliceInfoSection<'_>

type Error = Error

The error type this implementer returns (usually the same as the corresponding Parse impl, but need not be).

fn serialized_len(&self) -> usize

Number of bytes serialize_into will write.

fn serialize_into(&self, buf: &mut [u8]) -> Result<usize>

Write the serialised form into buf. Returns the number of bytes written (always equal to serialized_len()).

fn to_bytes(&self) -> Vec<u8>

where Self::Error: Debug,

Convenience: allocate a Vec and serialise into it.

impl<'a> StructuralPartialEq for SpliceInfoSection<'a>