Struct SdpCodec 

pub struct SdpCodec { /* private fields */ }

A codec derived from an SDP m= section.

Fields are private and read-only from outside the crate: a codec is what the offer said. Build one with new plus the with_* methods.

Implementations

impl SdpCodec

pub fn new( media: SdpMediaType, payload_type: u8, name: impl Into<String>, clock_rate: u32, ) -> Self

Create a codec from the fields an m= line and its rtpmap always supply.

The direction defaults to SdpDirection::SendRecv, which is what a section carrying no direction attribute means, and has_rtpmap to false — set it with with_rtpmap when the name and clock rate came off an a=rtpmap line rather than the RFC 3551 static table.

pub fn with_channels(self, channels: u32) -> Self

Set the channel count from a=rtpmap.

pub fn with_fmtp(self, fmtp: impl Into<String>) -> Self

Set the format parameters from a=fmtp.

pub fn with_ptime(self, ptime: u32) -> Self

Set the packetization time in milliseconds.

pub fn with_maxptime(self, maxptime: u32) -> Self

Set the maximum packetization time in milliseconds.

pub fn with_bitrate(self, bitrate: u32) -> Self

Set the bitrate in bits per second.

pub fn with_direction(self, direction: SdpDirection) -> Self

Set the media direction of the section this codec came from.

pub fn with_rtpmap(self) -> Self

Record that the encoding name and clock rate came from an a=rtpmap line.

pub fn media(&self) -> &SdpMediaType

The SDP media type this codec belongs to.

pub fn payload_type(&self) -> u8

The session-local RTP payload type.

This value is assigned by the offerer for the duration of this session only. It is never emitted into a FreeSWITCH codec string — codec strings identify codecs by name, not by payload type number.

pub fn name(&self) -> &str

The codec encoding name (e.g. "opus", "PCMU", "AMR-WB").

pub fn clock_rate(&self) -> u32

The RTP clock rate in Hz.

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

The channel count, or None when not applicable (video) or stream-defined.

pub fn fmtp(&self) -> Option<&str>

The format parameters from a=fmtp, if any.

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

The packetization time in milliseconds, or None if not specified.

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

The offered a=maxptime in milliseconds, or None if not specified.

Retained for offer fidelity: nothing in this crate reads it, and the switch derives no codec-string qualifier from it.

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

The bitrate in bits per second, or None if not known.

pub fn direction(&self) -> SdpDirection

The media direction for this codec’s stream.

pub fn has_rtpmap(&self) -> bool

Whether the encoding name and clock rate came from an a=rtpmap line.

false means they were filled in from the RFC 3551 static table.

Trait Implementations

impl Clone for SdpCodec

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SdpCodec

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

Formats the value using the given formatter.