Struct symphonia_core::formats::Packet

pub struct Packet {
    pub ts: u64,
    pub dur: u64,
    pub trim_start: u32,
    pub trim_end: u32,
    pub data: Box<[u8]>,
    /* private fields */
}

A Packet contains a discrete amount of encoded data for a single codec bitstream. The exact amount of data is bounded, but not defined, and is dependant on the container and/or the encapsulated codec.

Fields

ts: u64

The timestamp of the packet. When gapless support is enabled, this timestamp is relative to the end of the encoder delay.

This timestamp is in TimeBase units.

dur: u64

The duration of the packet. When gapless support is enabled, the duration does not include the encoder delay or padding.

The duration is in TimeBase units.

trim_start: u32

When gapless support is enabled, this is the number of decoded frames that should be trimmed from the start of the packet to remove the encoder delay. Must be 0 in all other cases.

trim_end: u32

When gapless support is enabled, this is the number of decoded frames that should be trimmed from the end of the packet to remove the encoder padding. Must be 0 in all other cases.

data: Box<[u8]>

The packet buffer.

Implementations

impl Packet

pub fn new_from_slice(track_id: u32, ts: u64, dur: u64, buf: &[u8]) -> Self

Create a new Packet from a slice.

pub fn new_from_boxed_slice( track_id: u32, ts: u64, dur: u64, data: Box<[u8]>, ) -> Self

Create a new Packet from a boxed slice.

pub fn new_trimmed_from_slice( track_id: u32, ts: u64, dur: u64, trim_start: u32, trim_end: u32, buf: &[u8], ) -> Self

Create a new Packet with trimming information from a slice.

pub fn new_trimmed_from_boxed_slice( track_id: u32, ts: u64, dur: u64, trim_start: u32, trim_end: u32, data: Box<[u8]>, ) -> Self

Create a new Packet with trimming information from a boxed slice.

pub fn track_id(&self) -> u32

The track identifier of the track this packet belongs to.

pub fn ts(&self) -> u64

Get the timestamp of the packet in TimeBase units.

If gapless support is enabled, then this timestamp is relative to the end of the encoder delay.

pub fn dur(&self) -> u64

Get the duration of the packet in TimeBase units.

If gapless support is enabled, then this is the duration after the encoder delay and padding is trimmed.

pub fn block_dur(&self) -> u64

Get the duration of the packet in TimeBase units if no decoded frames are trimmed.

If gapless support is disabled, then this is the same as the duration.

pub fn trim_start(&self) -> u32

Get the number of frames to trim from the start of the decoded packet.

pub fn trim_end(&self) -> u32

Get the number of frames to trim from the end of the decoded packet.

pub fn buf(&self) -> &[u8]

Get an immutable slice to the packet buffer.

pub fn as_buf_reader(&self) -> BufReader<'_>

Get a BufStream to read the packet data buffer sequentially.

Trait Implementations

impl Clone for Packet

fn clone(&self) -> Packet

Returns a copy of the value.

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

Performs copy-assignment from source.