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use super::{decoder, encoder}; use codec::{Audio, Id, Video}; use Codec; pub trait Decoder { fn decoder(self) -> Option<Codec>; } impl<'a> Decoder for &'a str { fn decoder(self) -> Option<Codec> { decoder::find_by_name(self) } } impl Decoder for Id { fn decoder(self) -> Option<Codec> { decoder::find(self) } } impl Decoder for Codec { fn decoder(self) -> Option<Codec> { if self.is_decoder() { Some(self) } else { None } } } impl Decoder for Option<Codec> { fn decoder(self) -> Option<Codec> { self.and_then(|c| c.decoder()) } } impl Decoder for Audio { fn decoder(self) -> Option<Codec> { if self.is_decoder() { Some(*self) } else { None } } } impl Decoder for Video { fn decoder(self) -> Option<Codec> { if self.is_decoder() { Some(*self) } else { None } } } pub trait Encoder { fn encoder(self) -> Option<Codec>; } impl<'a> Encoder for &'a str { fn encoder(self) -> Option<Codec> { encoder::find_by_name(self) } } impl Encoder for Id { fn encoder(self) -> Option<Codec> { encoder::find(self) } } impl Encoder for Codec { fn encoder(self) -> Option<Codec> { if self.is_encoder() { Some(self) } else { None } } } impl Encoder for Option<Codec> { fn encoder(self) -> Option<Codec> { self.and_then(|c| c.encoder()) } } impl Encoder for Audio { fn encoder(self) -> Option<Codec> { if self.is_encoder() { Some(*self) } else { None } } } impl Encoder for Video { fn encoder(self) -> Option<Codec> { if self.is_encoder() { Some(*self) } else { None } } }