musikr: add wav files

musikr/src/main/jni/src/taglib/bridge.rs

@@ -132,6 +132,8 @@ mod bridge_impl {
         #[namespace = "TagLib::RIFF::WAV"]
         #[cxx_name = "File"]
         type CPPWAVFile;
+        #[cxx_name = "ID3v2Tag"]
+        fn WAVID3v2Tag(self: &CPPWAVFile) -> *mut CPPID3v2Tag;
 
         #[namespace = "TagLib::FLAC"]
         #[cxx_name = "Picture"]

musikr/src/main/jni/src/taglib/mod.rs

@@ -12,3 +12,4 @@ pub mod tk;
 pub mod id3v2;
 pub mod id3v1;
 pub mod mp4;
+pub mod riff;

musikr/src/main/jni/src/taglib/riff.rs

@@ -0,0 +1,21 @@
+use super::bridge::{self, CPPWAVFile};
+use super::id3v2::ID3v2Tag;
+use super::this::{RefThisMut, This, ThisMut};
+use std::pin::Pin;
+
+pub struct WAVFile<'file_ref> {
+    this: RefThisMut<'file_ref, CPPWAVFile>,
+}
+
+impl<'file_ref> WAVFile<'file_ref> {
+    pub(super) fn new(this: RefThisMut<'file_ref, CPPWAVFile>) -> Self {
+        Self { this }
+    }
+
+    pub fn id3v2_tag(&mut self) -> Option<ID3v2Tag<'file_ref>> {
+        let tag = self.this.as_ref().WAVID3v2Tag();
+        let tag_ref = unsafe { tag.as_mut() };
+        let tag_this = tag_ref.map(|tag| unsafe { RefThisMut::new(tag) });
+        tag_this.map(|this| ID3v2Tag::new(this))
+    }
+}