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hls_m3u8/src/tags/media_segment/discontinuity.rs
2019-09-06 12:55:00 +02:00

44 lines
1.2 KiB
Rust

use crate::types::ProtocolVersion;
use crate::{Error, ErrorKind, Result};
use std::fmt;
use std::str::FromStr;
/// [4.3.2.3. EXT-X-DISCONTINUITY]
///
/// [4.3.2.3. EXT-X-DISCONTINUITY]: https://tools.ietf.org/html/rfc8216#section-4.3.2.3
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub struct ExtXDiscontinuity;
impl ExtXDiscontinuity {
pub(crate) const PREFIX: &'static str = "#EXT-X-DISCONTINUITY";
/// Returns the protocol compatibility version that this tag requires.
pub fn requires_version(self) -> ProtocolVersion {
ProtocolVersion::V1
}
}
impl fmt::Display for ExtXDiscontinuity {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
Self::PREFIX.fmt(f)
}
}
impl FromStr for ExtXDiscontinuity {
type Err = Error;
fn from_str(s: &str) -> Result<Self> {
track_assert_eq!(s, Self::PREFIX, ErrorKind::InvalidInput);
Ok(ExtXDiscontinuity)
}
}
#[cfg(test)]
mod test {
use super::*;
#[test]
fn ext_x_discontinuity() {
let tag = ExtXDiscontinuity;
assert_eq!("#EXT-X-DISCONTINUITY".parse().ok(), Some(tag));
assert_eq!(tag.to_string(), "#EXT-X-DISCONTINUITY");
assert_eq!(tag.requires_version(), ProtocolVersion::V1);
}
}