Struct TrackPublishOptions 

pub struct TrackPublishOptions {

    pub video_encoding: Option<VideoEncoding>,
    pub audio_encoding: Option<AudioEncoding>,
    pub video_codec: VideoCodec,
    pub dtx: bool,
    pub red: bool,
    pub simulcast: bool,
    pub simulcast_layers: Option<Vec<VideoPreset>>,
    pub source: TrackSource,
    pub stream: String,
    pub preconnect_buffer: bool,
    pub frame_metadata_features: FrameMetadataFeatures,
    pub video_encoder: VideoEncoderBackend,
    pub scalability_mode: Option<String>,
    pub degradation_preference: Option<DegradationPreference>,
}

Fields

video_encoding: Option<VideoEncoding>

audio_encoding: Option<AudioEncoding>

video_codec: VideoCodec

dtx: bool

red: bool

simulcast: bool

simulcast_layers: Option<Vec<VideoPreset>>

Custom simulcast layer presets (low, mid). When set, these override the SDK’s built-in defaults which reduce fps on lower layers.

source: TrackSource

stream: String

preconnect_buffer: bool

frame_metadata_features: FrameMetadataFeatures

video_encoder: VideoEncoderBackend

Preferred encoder backend for video tracks published with these options.

If the requested backend is unavailable, the SDK logs a warning and falls back to another compatible encoder.

scalability_mode: Option<String>

RTP scalability mode (e.g. “L3T3_KEY”). When set, a single RTP encoding is produced and that mode is forwarded to libwebrtc to enable true SVC for VP9/AV1. Has no effect for VP8/H264.

degradation_preference: Option<DegradationPreference>

Controls how the encoder trades off between resolution and framerate when bandwidth is constrained.

• MaintainFramerate: Prioritizes framerate, reduces resolution if needed
• MaintainResolution: Prioritizes resolution, drops frames if needed
• Balanced: Balances between both

If not set, the SDK uses defaults based on track source:

• Camera: MaintainFramerate (smoother video for real-time communication)
• Screen share: MaintainResolution (clarity is critical for text/UI)
• Other/unknown: Balanced

Trait Implementations

impl Clone for TrackPublishOptions

fn clone(&self) -> TrackPublishOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TrackPublishOptions

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

Formats the value using the given formatter.

impl Default for TrackPublishOptions

fn default() -> Self

Returns the “default value” for a type.