Struct Transcoder 

pub struct Transcoder<'a> { /* private fields */ }

Builder for audio transcoding operations.

Obtained via Transcoder::new. Configure the target format, bitrate, and optional time range, then call run to produce the output file.

Implementations

impl<'a> Transcoder<'a>

pub fn new(unbundler: &'a mut MediaFile) -> Self

Create a new transcoder for the given unbundler.

The default output format is WAV.

pub fn format(self, format: AudioFormat) -> Self

Set the target audio format.

pub fn with_format(self, format: AudioFormat) -> Self

Set the target audio format.

Alias for format.

pub fn start(self, start: Duration) -> Self

Set an optional start time for the transcoded range.

pub fn with_start(self, start: Duration) -> Self

Set an optional start time for the transcoded range.

Alias for start.

pub fn end(self, end: Duration) -> Self

Set an optional end time for the transcoded range.

pub fn with_end(self, end: Duration) -> Self

Set an optional end time for the transcoded range.

Alias for end.

pub fn bitrate(self, bitrate: usize) -> Self

Set the target bitrate in bits per second. If not set, the encoder default is used.

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

Set the target bitrate in bits per second.

Alias for bitrate.

pub fn run<P: AsRef<Path>>(self, path: P) -> Result<(), UnbundleError>

Run the transcode and write the output to path.

This delegates to AudioHandle::save_range (or save) under the hood: the audio is decoded and re-encoded to the target format.

Errors

• UnbundleError::NoAudioStream if no audio stream exists.
• UnbundleError::TranscodeError if encoding fails.

pub fn run_to_memory(self) -> Result<Vec<u8>, UnbundleError>

Run the transcode and return the encoded bytes in memory.

Errors

Same as run.