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use std::fmt; use nom::{ IResult, branch::alt, combinator::map, bytes::complete::tag }; #[derive(Debug, PartialEq, Clone)] pub enum SdpMediaType { Audio, Video, Application } pub fn parse_media_type(input: &[u8]) -> IResult<&[u8], SdpMediaType> { alt(( map(tag("audio"), |_| SdpMediaType::Audio), map(tag("video"), |_| SdpMediaType::Video), map(tag("application"), |_| SdpMediaType::Application) ))(input) } impl fmt::Display for SdpMediaType { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { match self { SdpMediaType::Audio => write!(f, "audio"), SdpMediaType::Video => write!(f, "video"), SdpMediaType::Application => write!(f, "application") } } }