Struct AudioPassthroughTranscoderFactory 

pub struct AudioPassthroughTranscoderFactory { /* private fields */ }

Factory that builds one AudioPassthroughTranscoder per source audio track, republishing fragments onto <source>/<rendition>/1.mp4.

Ships without the transcode feature on purpose: the factory carries no GStreamer dependency, so operators without the ladder build still get audio passthrough when the CLI wiring installs it alongside the software video encoder.

Implementations

impl AudioPassthroughTranscoderFactory

pub fn new( rendition: RenditionSpec, output_registry: FragmentBroadcasterRegistry, ) -> Self

Build a factory for rendition that republishes source audio fragments into output_registry under <source>/<rendition>/1.mp4.

pub fn skip_source_suffixes( self, suffixes: impl IntoIterator<Item = impl Into<String>>, ) -> Self

Register additional trailing-component suffixes that the factory should treat as already-transcoded outputs and skip. Appends to the built-in \d+p heuristic; the default recursion guard (an all- digits + trailing p suffix like 720p) stays in effect.

Operators running custom rendition names (ultra, low-motion, etc.) pass them here so the factory does not rebuild transcoders on its own outputs.

Trait Implementations

impl TranscoderFactory for AudioPassthroughTranscoderFactory

fn name(&self) -> &str

Stable identifier used in metric labels and logs (e.g. "passthrough", "x264", "nvenc"). Pick something short, lowercase, snake_case.

fn rendition(&self) -> &RenditionSpec

Target rendition this factory produces. Consumed by the crate::TranscodeRunner when building the TranscoderContext.

fn build(&self, ctx: &TranscoderContext) -> Option<Box<dyn Transcoder>>

Build a fresh transcoder for ctx, or return None to skip this (broadcast, track) entirely. Returning None is the correct path when the factory wants to opt out – e.g. a video transcoder returning None for an audio track, or a factory targeting only source broadcasts (not already-transcoded renditions).