Struct AnimatedRenderedDecoder 

pub struct AnimatedRenderedDecoder {
    pub default_color: [u8; 4],
    pub font_size_px: f32,
    pub side_margin_px: u32,
    pub bottom_margin_px: u32,
    /* private fields */
}

Animated subtitle decoder. See module docs.

Fields

default_color: [u8; 4]

Default text colour when no \c override is active.

font_size_px: f32

Nominal font size in pixels passed to the shaper.

side_margin_px: u32

Pixel margin between the canvas edge and the text bounding box.

bottom_margin_px: u32

Pixel margin between the canvas bottom and the lowest baseline.

Implementations

impl AnimatedRenderedDecoder

pub fn new( inner: Box<dyn Decoder>, width: u32, height: u32, face: FaceChain, ) -> Self

Build a new AnimatedRenderedDecoder wrapping inner and rendering at width × height using face.

pub fn set_offset_ms(&mut self, offset_ms: i32)

Set the cue-relative time at which the next receive_frame call will sample the animation. Subsequent calls keep this offset until it’s changed.

pub fn offset_ms(&self) -> i32

Current sampling offset in cue-relative milliseconds.

Trait Implementations

impl Decoder for AnimatedRenderedDecoder

fn codec_id(&self) -> &CodecId

fn send_packet(&mut self, packet: &Packet) -> Result<()>

Feed one compressed packet. May or may not produce a frame immediately — call receive_frame in a loop afterwards.

fn receive_frame(&mut self) -> Result<Frame>

Pull the next decoded frame, if any. Returns Error::NeedMore when the decoder needs another packet.

fn flush(&mut self) -> Result<()>

Signal end-of-stream. After this, receive_frame will drain buffered frames and eventually return Error::Eof.

fn reset(&mut self) -> Result<()>

Discard all carry-over state so the decoder can resume from a new bitstream position without producing stale output. Called by the player after a container seek.

fn receive_arena_frame(&mut self) -> Result<Arc<FrameInner>, Error>

Pull the next decoded frame as an arena-backed arena::sync::Frame.

fn set_execution_context(&mut self, _ctx: &ExecutionContext)

Advisory: announce the runtime environment (today: a thread budget for codec-internal parallelism). Called at most once, before the first send_packet. Default no-op; codecs that want to run slice-/GOP-/tile-parallel override this to capture the budget. Ignoring the hint is always safe — callers must still work with a decoder that runs serial.