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FilterChain

codec::filter

Struct FilterChain 

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pub struct FilterChain { /* private fields */ }
Expand description

A filter chain with its resources prepared (overlay PNGs loaded + converted). Build once with prepare, then apply per frame.

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impl FilterChain

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pub fn prepare(filters: &[VideoFilter]) -> Result<Self>

Prepare a chain: load + convert every overlay image (the rest pass through). Fails if an overlay image can’t be read or decoded.

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pub fn apply(&self, frame: VideoFrame) -> Result<VideoFrame>

Apply the whole chain to a frame, in order.

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pub fn is_empty(&self) -> bool

No filters → applying is a no-op.

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