Struct TranscodeContext 

pub struct TranscodeContext {
    pub decoder: Box<dyn FrameDecoder>,
    pub filter_graph: FilterGraph,
    pub encoder: Box<dyn FrameEncoder>,
}

Wires a FrameDecoder, FilterGraph, and FrameEncoder together into a single execute loop.

Execute loop

while !decoder.eof() {
    frame = decoder.decode_next()
    filtered = filter_graph.apply(frame)
    encoded  = encoder.encode_frame(filtered)
    accumulate stats
}
encoder.flush()

Fields

decoder: Box<dyn FrameDecoder>

The frame decoder (source).

filter_graph: FilterGraph

The filter graph applied between decode and encode.

encoder: Box<dyn FrameEncoder>

The frame encoder (sink).

Implementations

impl TranscodeContext

pub fn new( decoder: Box<dyn FrameDecoder>, filter_graph: FilterGraph, encoder: Box<dyn FrameEncoder>, ) -> Self

Creates a new context.

pub fn execute(&mut self) -> Result<TranscodeStats>

Execute the full decode → filter → encode pipeline loop.

Returns TranscodeStats containing per-frame counts, byte totals, and wall-clock timing.

Errors

Returns an error if encoding or filter operations fail.