Struct ModEx 

pub struct ModEx {
    pub mod_ex_type: u8,
    pub data: Vec<u8>,
}

One entry in the Enhanced RTMP v2 ModEx prelude chain (enhanced-rtmp-v2.pdf §“ExVideoTagHeader” / §“ExAudioTagHeader”).

On the wire each entry is modExDataSize (1-byte UI8 + 1, or a 16-bit UI16 + 1 escape when the 8-bit form would be 256), followed by modExDataSize bytes of modExData, then a single byte whose high nibble is the mod_ex_type (UB[4]) and whose low nibble is the next PacketType (UB[4]). The decoded struct keeps only the per-entry payload; the trailing nibble byte is reconstructed from the chain order + the tag’s real packet type when re-encoding.

Fields

mod_ex_type: u8

AudioPacketModExType / VideoPacketModExType — the high nibble of the byte that follows the data. One of MOD_EX_TYPE_* (only TimestampOffsetNano = 0 defined today).

data: Vec<u8>

Raw modExData bytes (1..=65536 bytes). For TimestampOffsetNano this is at least 3 bytes whose first three big-endian bytes are the UI24 nanosecond offset.

Implementations

impl ModEx

pub fn timestamp_offset_nano(&self) -> Option<u32>

Decode the TimestampOffsetNano value (bytesToUI24 of the first three data bytes) when this entry is that subtype. Returns None for any other mod_ex_type or if data is shorter than the spec-mandated three bytes.

pub fn timestamp_offset_nano_entry(nano: u32) -> ModEx

Build a TimestampOffsetNano ModEx entry from a nanosecond offset (0..=999_999 ns per spec) encoded as a bytesToUI24 3-byte big-endian payload.

Trait Implementations

impl Clone for ModEx

fn clone(&self) -> ModEx

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ModEx

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

Formats the value using the given formatter.

impl Eq for ModEx

impl PartialEq for ModEx

fn eq(&self, other: &ModEx) -> 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 ModEx