Struct FfmpegSubtitleStreamDecoder 

pub struct FfmpegSubtitleStreamDecoder { /* private fields */ }

mediadecode::SubtitleDecoder impl wrapping ffmpeg::decoder::Subtitle.

Subtitle decoders are stateless from FFmpeg’s perspective — each decode() call consumes one packet and produces zero-or-one AVSubtitle. The pending-frame buffer here is a one-slot queue so the trait’s send_packet / receive_frame split works.

Implementations

impl FfmpegSubtitleStreamDecoder

pub fn open( parameters: Parameters, time_base: Timebase, ) -> Result<Self, SubtitleDecodeError>

Opens a subtitle decoder for the given codec parameters.

pub const fn time_base(&self) -> Timebase

Returns the time base associated with the source stream.

pub const fn inner(&self) -> &Subtitle

Borrow the wrapped ffmpeg::decoder::Subtitle.

Trait Implementations

impl SubtitleDecoder for FfmpegSubtitleStreamDecoder

type Adapter = Ffmpeg

Backend vocabulary.

type Buffer = FfmpegBuffer

Buffer type.

type Error = SubtitleDecodeError

Decoder-specific error.

fn send_packet( &mut self, packet: &SubtitlePacket<SubtitlePacketExtra, Self::Buffer>, ) -> Result<(), Self::Error>

Submits a compressed subtitle packet.

fn receive_frame( &mut self, dst: &mut SubtitleFrame<SubtitleFrameExtra, Self::Buffer>, ) -> Result<(), Self::Error>

Drains a decoded subtitle frame.

fn send_eof(&mut self) -> Result<(), Self::Error>

Signals EOF.

fn flush(&mut self) -> Result<(), Self::Error>

Flushes internal state.