Struct AudioConcatenator 

pub struct AudioConcatenator { /* private fields */ }

Concatenates multiple audio clips into a single seamless output stream.

Each clip is loaded via an amovie= source node. When output_format is set, an aresample and/or aformat filter is inserted per clip to normalise the sample rate and channel layout before concatenation. A single clip skips the concat filter entirely.

Examples

use ff_filter::AudioConcatenator;
use ff_format::ChannelLayout;

let mut graph = AudioConcatenator::new(vec!["clip_a.mp3", "clip_b.mp3"])
    .output_format(48_000, ChannelLayout::Stereo)
    .build()?;

while let Some(frame) = graph.pull_audio()? {
    // encode or play `frame`
}

Implementations

impl AudioConcatenator

pub fn new(clips: Vec<impl AsRef<Path>>) -> Self

Creates a new concatenator for the given clip paths.

pub fn output_format(self, sample_rate: u32, layout: ChannelLayout) -> Self

Sets the output sample rate and channel layout.

When set, an aresample filter is inserted for each clip whose sample rate differs from sample_rate, and an aformat filter is inserted for each clip whose channel layout differs from layout.

pub fn build(self) -> Result<FilterGraph, FilterError>

Builds a source-only FilterGraph that concatenates all clips.

Errors

• FilterError::CompositionFailed — no clips were provided, or an underlying FFmpeg graph-construction call failed.