EBML: Rename TagType::Ebml -> TagType::Matroska

lofty/src/ebml/mod.rs

@@ -19,8 +19,8 @@ pub use vint::*;
 #[lofty(internal_write_module_do_not_use_anywhere_else)]
 pub struct EbmlFile {
 	/// An EBML tag
-	#[lofty(tag_type = "Ebml")]
-	pub(crate) ebml_tag: Option<EbmlTag>,
+	#[lofty(tag_type = "Matroska")]
+	pub(crate) ebml_tag: Option<MatroskaTag>,
 	/// The file's audio properties
 	pub(crate) properties: EbmlProperties,
 }

lofty/src/ebml/read/segment.rs

@@ -2,7 +2,7 @@ use super::{segment_attachments, segment_info, segment_tags, segment_tracks};
 use crate::config::ParseOptions;
 use crate::ebml::element_reader::{ElementHeader, ElementIdent, ElementReader, ElementReaderYield};
 use crate::ebml::properties::EbmlProperties;
-use crate::ebml::tag::EbmlTag;
+use crate::ebml::tag::MatroskaTag;
 use crate::ebml::ElementId;
 use crate::error::Result;
 
@@ -12,7 +12,7 @@ pub(super) fn read_from<R>(
 	element_reader: &mut ElementReader<R>,
 	parse_options: ParseOptions,
 	properties: &mut EbmlProperties,
-) -> Result<Option<EbmlTag>>
+) -> Result<Option<MatroskaTag>>
 where
 	R: Read + Seek,
 {

lofty/src/ebml/read/segment_attachments.rs

@@ -2,7 +2,7 @@ use crate::config::ParseOptions;
 use crate::ebml::element_reader::{
 	ElementChildIterator, ElementIdent, ElementReader, ElementReaderYield,
 };
-use crate::ebml::{AttachedFile, EbmlTag};
+use crate::ebml::{AttachedFile, MatroskaTag};
 use crate::error::Result;
 use crate::macros::decode_err;
 use crate::picture::MimeType;
@@ -13,7 +13,7 @@ use std::io::{Read, Seek};
 pub(super) fn read_from<R>(
 	children_reader: &mut ElementChildIterator<'_, R>,
 	_parse_options: ParseOptions,
-	tag: &mut EbmlTag,
+	tag: &mut MatroskaTag,
 ) -> Result<()>
 where
 	R: Read + Seek,

lofty/src/ebml/read/segment_chapters.rs

@@ -1,6 +1,6 @@
 use crate::config::ParseOptions;
 use crate::ebml::element_reader::ElementChildIterator;
-use crate::ebml::EbmlTag;
+use crate::ebml::MatroskaTag;
 use crate::error::Result;
 
 use std::io::{Read, Seek};
@@ -9,7 +9,7 @@ use std::io::{Read, Seek};
 pub(super) fn read_from<R>(
 	_children_reader: &mut ElementChildIterator<'_, R>,
 	_parse_options: ParseOptions,
-	_tag: &mut EbmlTag,
+	_tag: &mut MatroskaTag,
 ) -> Result<()>
 where
 	R: Read + Seek,

lofty/src/ebml/read/segment_tags.rs

@@ -1,6 +1,6 @@
 use crate::config::ParseOptions;
 use crate::ebml::element_reader::{ElementChildIterator, ElementIdent, ElementReaderYield};
-use crate::ebml::{EbmlTag, Language, SimpleTag, Tag, TagValue, Target, TargetType};
+use crate::ebml::{Language, MatroskaTag, SimpleTag, Tag, TagValue, Target, TargetType};
 use crate::error::Result;
 use crate::macros::decode_err;
 
@@ -9,7 +9,7 @@ use std::io::{Read, Seek};
 pub(super) fn read_from<R>(
 	children_reader: &mut ElementChildIterator<'_, R>,
 	_parse_options: ParseOptions,
-	tag: &mut EbmlTag,
+	tag: &mut MatroskaTag,
 ) -> Result<()>
 where
 	R: Read + Seek,

lofty/src/ebml/tag/generic.rs

@@ -2,7 +2,7 @@
 //!
 //! NOTE: We can **ONLY** convert `SimpleTags` that come from a target with **NO** uids
 
-use super::{EbmlTag, Language, SimpleTag, TargetType, TOMBSTONE_SIMPLE_TAG};
+use super::{Language, MatroskaTag, SimpleTag, TargetType, TOMBSTONE_SIMPLE_TAG};
 use crate::tag::items::Lang;
 use crate::tag::{ItemKey, Tag, TagItem, TagType};
 
@@ -135,8 +135,8 @@ matroska_mapping_tables!(
 const TAG_RETAINED: bool = true;
 const TAG_CONSUMED: bool = false;
 
-pub(super) fn split_tag(mut ebml_tag: EbmlTag) -> (EbmlTag, Tag) {
-	let mut tag = Tag::new(TagType::Ebml);
+pub(super) fn split_tag(mut ebml_tag: MatroskaTag) -> (MatroskaTag, Tag) {
+	let mut tag = Tag::new(TagType::Matroska);
 
 	// TODO: Pictures, can they be handled in a generic way?
 	//       What about the uid and referral?

lofty/src/ebml/tag/mod.rs

@@ -31,7 +31,7 @@ macro_rules! impl_accessor {
 		paste::paste! {
 			$(
 				fn $method(&self) -> Option<Cow<'_, str>> {
-					self.get_str(EbmlTagKey(TargetType::$target, Cow::Borrowed($name)))
+					self.get_str(MatroskaTagKey(TargetType::$target, Cow::Borrowed($name)))
 				}
 
 				fn [<set_ $method>](&mut self, value: String) {
@@ -57,18 +57,18 @@ macro_rules! impl_accessor {
 /// * [`Target`]
 /// * [`AttachedFile`]
 #[derive(Default, Debug, PartialEq, Eq, Clone)]
-#[tag(description = "An `EBML` \"tag\"", supported_formats(Ebml))]
-pub struct EbmlTag {
+#[tag(description = "A Matroska/WebM \"tag\"", supported_formats(Ebml))]
+pub struct MatroskaTag {
 	pub(crate) tags: Vec<Tag<'static>>,
 	pub(crate) attached_files: Vec<AttachedFile<'static>>,
 }
 
 // TODO
 #[allow(missing_docs)]
-pub struct EbmlTagKey<'a>(TargetType, Cow<'a, str>);
+pub struct MatroskaTagKey<'a>(TargetType, Cow<'a, str>);
 
-impl EbmlTag {
-	fn get(&self, key: EbmlTagKey<'_>) -> Option<&SimpleTag<'_>> {
+impl MatroskaTag {
+	fn get(&self, key: MatroskaTagKey<'_>) -> Option<&SimpleTag<'_>> {
 		fn tag_matches_target(tag: &Tag<'_>, target_type: TargetType) -> bool {
 			let Some(target) = &tag.target else {
 				// An empty target is implicitly `Album`
@@ -78,7 +78,7 @@ impl EbmlTag {
 			target.is_candidate_for_type(target_type)
 		}
 
-		let EbmlTagKey(target, key) = key;
+		let MatroskaTagKey(target, key) = key;
 
 		let applicable_tags = self
 			.tags
@@ -98,7 +98,7 @@ impl EbmlTag {
 		None
 	}
 
-	fn get_str(&self, key: EbmlTagKey<'_>) -> Option<Cow<'_, str>> {
+	fn get_str(&self, key: MatroskaTagKey<'_>) -> Option<Cow<'_, str>> {
 		let simple_tag = self.get(key)?;
 		simple_tag.get_str().map(Cow::from)
 	}
@@ -131,11 +131,11 @@ impl EbmlTag {
 	/// # Examples
 	///
 	/// ```rust,no_run
-	/// use lofty::ebml::EbmlTag;
+	/// use lofty::ebml::MatroskaTag;
 	/// use lofty::picture::Picture;
 	///
 	/// # fn main() -> lofty::error::Result<()> {
-	/// let mut tag = EbmlTag::default();
+	/// let mut tag = MatroskaTag::default();
 	///
 	/// let mut picture = std::fs::read("something.png")?;
 	/// let mut picture2 = std::fs::read("something_else.png")?;
@@ -153,14 +153,14 @@ impl EbmlTag {
 
 	/// Inserts a new [`Picture`]
 	///
-	/// Note: See [`EbmlTag::insert_attached_file`]
+	/// Note: See [`MatroskaTag::insert_attached_file`]
 	///
 	/// ```rust,no_run
-	/// use lofty::ebml::EbmlTag;
+	/// use lofty::ebml::MatroskaTag;
 	/// use lofty::picture::Picture;
 	///
 	/// # fn main() -> lofty::error::Result<()> {
-	/// let mut tag = EbmlTag::default();
+	/// let mut tag = MatroskaTag::default();
 	///
 	/// let mut picture_file = std::fs::read("something.png")?;
 	/// tag.insert_picture(Picture::from_reader(&mut &picture_file[..])?);
@@ -219,7 +219,7 @@ impl EbmlTag {
 	}
 }
 
-impl Accessor for EbmlTag {
+impl Accessor for MatroskaTag {
 	impl_accessor!(
 		artist => (Track, "ARTIST"),
 		title => (Track, "TITLE"),
@@ -267,21 +267,21 @@ impl Accessor for EbmlTag {
 	}
 }
 
-impl TagExt for EbmlTag {
+impl TagExt for MatroskaTag {
 	type Err = LoftyError;
-	type RefKey<'a> = EbmlTagKey<'a>;
+	type RefKey<'a> = MatroskaTagKey<'a>;
 
 	#[inline]
 	fn tag_type(&self) -> TagType {
-		TagType::Ebml
+		TagType::Matroska
 	}
 
 	fn len(&self) -> usize {
 		self.tags.iter().map(Tag::len).sum::<usize>() + self.attached_files.len()
 	}
 
 	fn contains<'a>(&'a self, key: Self::RefKey<'a>) -> bool {
-		let EbmlTagKey(target_type, key) = key;
+		let MatroskaTagKey(target_type, key) = key;
 		self.tags.iter().any(|tag| {
 			if let Some(target) = &tag.target {
 				return target.target_type == target_type
@@ -338,23 +338,23 @@ impl TagExt for EbmlTag {
 
 #[doc(hidden)]
 #[derive(Debug, Clone, Default)]
-pub struct SplitTagRemainder(EbmlTag);
+pub struct SplitTagRemainder(MatroskaTag);
 
-impl From<SplitTagRemainder> for EbmlTag {
+impl From<SplitTagRemainder> for MatroskaTag {
 	fn from(from: SplitTagRemainder) -> Self {
 		from.0
 	}
 }
 
 impl Deref for SplitTagRemainder {
-	type Target = EbmlTag;
+	type Target = MatroskaTag;
 
 	fn deref(&self) -> &Self::Target {
 		&self.0
 	}
 }
 
-impl SplitTag for EbmlTag {
+impl SplitTag for MatroskaTag {
 	type Remainder = SplitTagRemainder;
 
 	fn split_tag(mut self) -> (Self::Remainder, crate::tag::Tag) {
@@ -364,20 +364,20 @@ impl SplitTag for EbmlTag {
 }
 
 impl MergeTag for SplitTagRemainder {
-	type Merged = EbmlTag;
+	type Merged = MatroskaTag;
 
 	fn merge_tag(self, _tag: crate::tag::Tag) -> Self::Merged {
 		todo!()
 	}
 }
 
-impl From<EbmlTag> for crate::tag::Tag {
-	fn from(input: EbmlTag) -> Self {
+impl From<MatroskaTag> for crate::tag::Tag {
+	fn from(input: MatroskaTag) -> Self {
 		input.split_tag().1
 	}
 }
 
-impl From<crate::tag::Tag> for EbmlTag {
+impl From<crate::tag::Tag> for MatroskaTag {
 	fn from(input: crate::tag::Tag) -> Self {
 		SplitTagRemainder::default().merge_tag(input)
 	}

lofty/src/file/file_type.rs

@@ -35,6 +35,7 @@ impl FileType {
 	/// | `Ape` , `Mpc`, `WavPack`          | `Ape`            |
 	/// | `Flac`, `Opus`, `Vorbis`, `Speex` | `VorbisComments` |
 	/// | `Mp4`                             | `Mp4Ilst`        |
+	/// | `Ebml`                            | `Matroska`       |
 	///
 	/// # Panics
 	///
@@ -53,7 +54,7 @@ impl FileType {
 		match self {
 			FileType::Aac | FileType::Aiff | FileType::Mpeg | FileType::Wav => TagType::Id3v2,
 			FileType::Ape | FileType::Mpc | FileType::WavPack => TagType::Ape,
-			FileType::Ebml => TagType::Ebml,
+			FileType::Ebml => TagType::Matroska,
 			FileType::Flac | FileType::Opus | FileType::Vorbis | FileType::Speex => {
 				TagType::VorbisComments
 			},
@@ -92,7 +93,7 @@ impl FileType {
 
 		match tag_type {
 			TagType::Ape => crate::ape::ApeTag::SUPPORTED_FORMATS.contains(self),
-			TagType::Ebml => crate::ebml::EbmlTag::SUPPORTED_FORMATS.contains(self),
+			TagType::Matroska => crate::ebml::MatroskaTag::SUPPORTED_FORMATS.contains(self),
 			TagType::Id3v1 => crate::id3::v1::Id3v1Tag::SUPPORTED_FORMATS.contains(self),
 			TagType::Id3v2 => crate::id3::v2::Id3v2Tag::SUPPORTED_FORMATS.contains(self),
 			TagType::Mp4Ilst => crate::mp4::Ilst::SUPPORTED_FORMATS.contains(self),

lofty/src/tag/companion_tag.rs

@@ -1,10 +1,12 @@
+use crate::ebml::MatroskaTag;
 use crate::id3::v2::Id3v2Tag;
 use crate::mp4::Ilst;
 
 #[derive(Debug, Clone)]
 pub(crate) enum CompanionTag {
 	Id3v2(Id3v2Tag),
 	Ilst(Ilst),
+	Matroska(MatroskaTag),
 }
 
 impl CompanionTag {
@@ -21,4 +23,11 @@ impl CompanionTag {
 			_ => None,
 		}
 	}
+
+	pub(crate) fn matroska(self) -> Option<MatroskaTag> {
+		match self {
+			CompanionTag::Matroska(tag) => Some(tag),
+			_ => None,
+		}
+	}
 }

lofty/src/tag/item.rs

@@ -902,7 +902,7 @@ impl TagItem {
 			return VALID_ITEMKEYS.contains(&self.item_key);
 		}
 
-		if tag_type == TagType::Ebml {
+		if tag_type == TagType::Matroska {
 			use crate::ebml::tag::SUPPORTED_ITEMKEYS;
 
 			return SUPPORTED_ITEMKEYS.contains(&self.item_key);

lofty/src/tag/split_merge_tag.rs

@@ -70,7 +70,7 @@ pub trait MergeTag: private::Sealed {
 // https://rust-lang.github.io/api-guidelines/future-proofing.html#c-sealed
 mod private {
 	use crate::ape::ApeTag;
-	use crate::ebml::EbmlTag;
+	use crate::ebml::MatroskaTag;
 	use crate::id3::v1::Id3v1Tag;
 	use crate::id3::v2::Id3v2Tag;
 	use crate::iff::aiff::AiffTextChunks;
@@ -86,7 +86,7 @@ mod private {
 	impl Sealed for ApeTag {}
 	impl Sealed for crate::ape::tag::SplitTagRemainder {}
 
-	impl Sealed for EbmlTag {}
+	impl Sealed for MatroskaTag {}
 	impl Sealed for crate::ebml::tag::SplitTagRemainder {}
 
 	impl Sealed for Id3v1Tag {}

lofty/src/tag/tag_ext.rs

@@ -153,7 +153,7 @@ pub trait TagExt: Accessor + Into<Tag> + Sized + private::Sealed {
 // https://rust-lang.github.io/api-guidelines/future-proofing.html#c-sealed
 mod private {
 	use crate::ape::ApeTag;
-	use crate::ebml::EbmlTag;
+	use crate::ebml::MatroskaTag;
 	use crate::id3::v1::Id3v1Tag;
 	use crate::id3::v2::Id3v2Tag;
 	use crate::iff::aiff::AiffTextChunks;
@@ -166,7 +166,7 @@ mod private {
 
 	impl Sealed for AiffTextChunks {}
 	impl Sealed for ApeTag {}
-	impl Sealed for EbmlTag {}
+	impl Sealed for MatroskaTag {}
 	impl Sealed for Id3v1Tag {}
 	impl Sealed for Id3v2Tag {}
 	impl Sealed for Ilst {}

lofty/src/tag/tag_type.rs

@@ -15,8 +15,8 @@ use std::path::Path;
 pub enum TagType {
 	/// This covers both APEv1 and APEv2 as it doesn't matter much
 	Ape,
-	/// Represents an EBML tag element
-	Ebml,
+	/// Represents a `\Segment\Tags` element in Matroska/WebM
+	Matroska,
 	/// Represents an ID3v1 tag
 	Id3v1,
 	/// This covers all ID3v2 versions since they all get upgraded to ID3v2.4

lofty/src/tag/utils.rs

@@ -34,6 +34,7 @@ where
 		FileType::Aac => aac::write::write_to(file, tag, write_options),
 		FileType::Aiff => iff::aiff::write::write_to(file, tag, write_options),
 		FileType::Ape => ape::write::write_to(file, tag, write_options),
+		FileType::Ebml => todo!("write EBML tags"),
 		FileType::Flac => flac::write::write_to(file, tag, write_options),
 		FileType::Opus | FileType::Speex | FileType::Vorbis => {
 			crate::ogg::write::write_to(file, tag, file_type, write_options)
@@ -98,6 +99,9 @@ pub(crate) fn dump_tag<W: Write>(
 			}
 		}
 		.dump_to(writer, write_options),
+		TagType::Matroska => {
+			todo!("Dump EBML tags")
+		},
 		_ => Ok(()),
 	}
 }