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hls_m3u8/src/tags/media_playlist/i_frames_only.rs
2019-09-22 10:57:28 +02:00

61 lines
1.3 KiB
Rust

use std::fmt;
use std::str::FromStr;
use crate::types::{ProtocolVersion, RequiredVersion};
use crate::utils::tag;
use crate::Error;
/// [4.3.3.6. EXT-X-I-FRAMES-ONLY]
///
/// [4.3.3.6. EXT-X-I-FRAMES-ONLY]: https://tools.ietf.org/html/rfc8216#section-4.3.3.6
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub struct ExtXIFramesOnly;
impl ExtXIFramesOnly {
pub(crate) const PREFIX: &'static str = "#EXT-X-I-FRAMES-ONLY";
}
impl RequiredVersion for ExtXIFramesOnly {
fn required_version(&self) -> ProtocolVersion {
ProtocolVersion::V4
}
}
impl fmt::Display for ExtXIFramesOnly {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
Self::PREFIX.fmt(f)
}
}
impl FromStr for ExtXIFramesOnly {
type Err = Error;
fn from_str(input: &str) -> Result<Self, Self::Err> {
tag(input, Self::PREFIX)?;
Ok(ExtXIFramesOnly)
}
}
#[cfg(test)]
mod test {
use super::*;
#[test]
fn test_display() {
assert_eq!(
ExtXIFramesOnly.to_string(),
"#EXT-X-I-FRAMES-ONLY".to_string(),
)
}
#[test]
fn test_parser() {
assert_eq!(ExtXIFramesOnly, "#EXT-X-I-FRAMES-ONLY".parse().unwrap(),)
}
#[test]
fn test_required_version() {
assert_eq!(ExtXIFramesOnly.required_version(), ProtocolVersion::V4)
}
}