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improve ExtXSessionKey
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1 changed files with 5 additions and 3 deletions
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@ -9,13 +9,15 @@ use crate::types::{EncryptionMethod, ProtocolVersion};
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use crate::utils::tag;
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use crate::{Error, RequiredVersion};
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/// # [4.3.4.5. EXT-X-SESSION-KEY]
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///
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/// The [`ExtXSessionKey`] tag allows encryption keys from [`MediaPlaylist`]s
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/// to be specified in a [`MasterPlaylist`]. This allows the client to
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/// preload these keys without having to read the [`MediaPlaylist`]s
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/// first.
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///
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/// If an [`ExtXSessionKey`] is used, the values of [`ExtXKey::method`],
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/// [`ExtXKey::key_format`] and [`ExtXKey::key_format_versions`] must match any
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/// [`ExtXKey`] with the same uri field.
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///
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/// [`MediaPlaylist`]: crate::MediaPlaylist
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/// [`MasterPlaylist`]: crate::MasterPlaylist
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/// [4.3.4.5. EXT-X-SESSION-KEY]: https://tools.ietf.org/html/rfc8216#section-4.3.4.5
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@ -70,7 +72,7 @@ impl TryFrom<ExtXKey> for ExtXSessionKey {
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}
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/// This tag requires the same [`ProtocolVersion`] that is returned by
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/// `DecryptionKey::required_version`.
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/// `ExtXKey::required_version`.
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impl RequiredVersion for ExtXSessionKey {
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fn required_version(&self) -> ProtocolVersion { self.0.required_version() }
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}
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