2020-04-22 07:54:48 +00:00
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use std::convert::TryFrom;
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2019-09-06 10:55:00 +00:00
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use std::fmt;
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use std::time::Duration;
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2019-09-13 14:06:52 +00:00
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2019-10-04 09:02:21 +00:00
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use crate::types::ProtocolVersion;
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2019-09-13 14:06:52 +00:00
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use crate::utils::tag;
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2019-10-04 09:02:21 +00:00
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use crate::{Error, RequiredVersion};
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2019-09-06 10:55:00 +00:00
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2020-03-25 12:37:47 +00:00
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/// Specifies the maximum `MediaSegment` duration.
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#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Default, PartialOrd, Ord)]
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pub(crate) struct ExtXTargetDuration(pub Duration);
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2019-09-06 10:55:00 +00:00
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impl ExtXTargetDuration {
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pub(crate) const PREFIX: &'static str = "#EXT-X-TARGETDURATION:";
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2019-09-22 08:57:28 +00:00
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}
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2019-09-06 10:55:00 +00:00
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2019-10-03 14:23:27 +00:00
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/// This tag requires [`ProtocolVersion::V1`].
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2019-09-22 08:57:28 +00:00
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impl RequiredVersion for ExtXTargetDuration {
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2019-10-03 15:01:15 +00:00
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fn required_version(&self) -> ProtocolVersion { ProtocolVersion::V1 }
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2019-09-06 10:55:00 +00:00
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}
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impl fmt::Display for ExtXTargetDuration {
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2020-04-09 06:43:13 +00:00
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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2019-09-22 08:57:28 +00:00
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write!(f, "{}{}", Self::PREFIX, self.0.as_secs())
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2019-09-06 10:55:00 +00:00
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}
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}
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2020-04-22 07:54:48 +00:00
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impl TryFrom<&str> for ExtXTargetDuration {
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type Error = Error;
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2019-09-13 14:06:52 +00:00
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2020-04-22 07:54:48 +00:00
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fn try_from(input: &str) -> Result<Self, Self::Error> {
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2020-03-25 12:37:47 +00:00
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let input = tag(input, Self::PREFIX)?
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.parse()
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.map_err(|e| Error::parse_int(input, e))?;
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2020-02-14 12:01:42 +00:00
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2020-03-25 12:37:47 +00:00
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Ok(Self(Duration::from_secs(input)))
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2019-09-06 10:55:00 +00:00
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}
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}
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#[cfg(test)]
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mod test {
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use super::*;
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2019-10-08 13:42:33 +00:00
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use pretty_assertions::assert_eq;
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2019-09-06 10:55:00 +00:00
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#[test]
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2019-09-22 08:57:28 +00:00
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fn test_display() {
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assert_eq!(
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2020-03-25 12:37:47 +00:00
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ExtXTargetDuration(Duration::from_secs(5)).to_string(),
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2019-09-22 08:57:28 +00:00
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"#EXT-X-TARGETDURATION:5".to_string()
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);
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}
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#[test]
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fn test_required_version() {
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assert_eq!(
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2020-03-25 12:37:47 +00:00
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ExtXTargetDuration(Duration::from_secs(5)).required_version(),
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2019-09-22 08:57:28 +00:00
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ProtocolVersion::V1
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);
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}
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#[test]
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fn test_parser() {
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assert_eq!(
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2020-03-25 12:37:47 +00:00
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ExtXTargetDuration(Duration::from_secs(5)),
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2020-04-22 07:54:48 +00:00
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ExtXTargetDuration::try_from("#EXT-X-TARGETDURATION:5").unwrap()
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2019-09-22 08:57:28 +00:00
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);
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2019-09-06 10:55:00 +00:00
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}
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}
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