2019-09-06 10:55:00 +00:00
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use std::fmt;
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use std::str::FromStr;
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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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2019-09-13 14:06:52 +00:00
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2020-02-24 15:16:40 +00:00
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/// Signals that all media samples in a [`MediaSegment`] can be decoded without
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/// information from other segments.
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2020-02-10 12:21:48 +00:00
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///
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/// [`MediaSegment`]: crate::MediaSegment
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2019-09-22 18:33:40 +00:00
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#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Ord, PartialOrd)]
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2020-03-25 11:18:34 +00:00
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pub(crate) struct ExtXIndependentSegments;
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2019-09-22 08:57:28 +00:00
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2019-09-06 10:55:00 +00:00
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impl ExtXIndependentSegments {
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pub(crate) const PREFIX: &'static str = "#EXT-X-INDEPENDENT-SEGMENTS";
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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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2020-02-02 12:38:11 +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 ExtXIndependentSegments {
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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 ExtXIndependentSegments {
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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 { Self::PREFIX.fmt(f) }
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2019-09-06 10:55:00 +00:00
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}
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impl FromStr for ExtXIndependentSegments {
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type Err = Error;
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2019-09-08 10:23:33 +00:00
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2019-09-13 14:06:52 +00:00
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fn from_str(input: &str) -> Result<Self, Self::Err> {
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tag(input, Self::PREFIX)?;
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2019-10-05 14:08:03 +00:00
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Ok(Self)
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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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ExtXIndependentSegments.to_string(),
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"#EXT-X-INDEPENDENT-SEGMENTS".to_string(),
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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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ExtXIndependentSegments,
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"#EXT-X-INDEPENDENT-SEGMENTS".parse().unwrap(),
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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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ExtXIndependentSegments.required_version(),
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ProtocolVersion::V1
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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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