diff --git a/crates/_types/enums/src/by_table/media_files/media_file_animation_type.rs b/crates/_types/enums/src/by_table/media_files/media_file_animation_type.rs
new file mode 100644
index 0000000000..c7372b4297
--- /dev/null
+++ b/crates/_types/enums/src/by_table/media_files/media_file_animation_type.rs
@@ -0,0 +1,142 @@
+use std::collections::BTreeSet;
+
+use serde::Deserialize;
+use serde::Serialize;
+#[cfg(test)]
+use strum::EnumCount;
+#[cfg(test)]
+use strum::EnumIter;
+use utoipa::ToSchema;
+
+/// Used in the `media_files` table in a `VARCHAR` field.
+///
+/// DO NOT CHANGE VALUES WITHOUT A MIGRATION STRATEGY.
+#[cfg_attr(test, derive(EnumIter, EnumCount))]
+#[derive(Clone, Copy, Eq, PartialEq, Hash, Ord, PartialOrd, Deserialize, Serialize, ToSchema)]
+#[serde(rename_all = "snake_case")]
+pub enum MediaFileAnimationType {
+  /// Animation or rig for MikuMikuDance (MMD).
+  MikuMikuDance,
+
+  /// Animation or rig for Mixamo
+  Mixamo,
+
+  /// Animation generated by MocapNet
+  MocapNet,
+
+  /// Animation or rig for Rigify.
+  Rigify,
+}
+
+// TODO(bt, 2022-12-21): This desperately needs MySQL integration tests!
+impl_enum_display_and_debug_using_to_str!(MediaFileAnimationType);
+impl_mysql_enum_coders!(MediaFileAnimationType);
+impl_mysql_from_row!(MediaFileAnimationType);
+
+/// NB: Legacy API for older code.
+impl MediaFileAnimationType {
+  pub fn to_str(&self) -> &'static str {
+    match self {
+      Self::MikuMikuDance => "miku_miku_dance",
+      Self::Mixamo => "mixamo",
+      Self::MocapNet => "mocap_net",
+      Self::Rigify => "rigify",
+    }
+  }
+
+  pub fn from_str(value: &str) -> Result<Self, String> {
+    match value {
+      "miku_miku_dance" => Ok(Self::MikuMikuDance),
+      "mixamo" => Ok(Self::Mixamo),
+      "mocap_net" => Ok(Self::MocapNet),
+      "rigify" => Ok(Self::Rigify),
+      _ => Err(format!("invalid value: {:?}", value)),
+    }
+  }
+
+  pub fn all_variants() -> BTreeSet<Self> {
+    // NB: BTreeSet is sorted
+    // NB: BTreeSet::from() isn't const, but not worth using LazyStatic, etc.
+    BTreeSet::from([
+      Self::MikuMikuDance,
+      Self::Mixamo,
+      Self::MocapNet,
+      Self::Rigify,
+    ])
+  }
+}
+
+#[cfg(test)]
+mod tests {
+  use crate::by_table::media_files::media_file_animation_type::MediaFileAnimationType;
+  use crate::test_helpers::assert_serialization;
+
+  mod explicit_checks {
+    use super::*;
+
+    #[test]
+    fn test_serialization() {
+      assert_serialization(MediaFileAnimationType::MikuMikuDance, "miku_miku_dance");
+      assert_serialization(MediaFileAnimationType::Mixamo, "mixamo");
+      assert_serialization(MediaFileAnimationType::MocapNet, "mocap_net");
+      assert_serialization(MediaFileAnimationType::Rigify, "rigify");
+    }
+
+    #[test]
+    fn test_to_str() {
+      assert_eq!(MediaFileAnimationType::MikuMikuDance.to_str(), "miku_miku_dance");
+      assert_eq!(MediaFileAnimationType::Mixamo.to_str(), "mixamo");
+      assert_eq!(MediaFileAnimationType::MocapNet.to_str(), "mocap_net");
+      assert_eq!(MediaFileAnimationType::Rigify.to_str(), "rigify");
+    }
+
+    #[test]
+    fn test_from_str() {
+      assert_eq!(MediaFileAnimationType::from_str("miku_miku_dance").unwrap(), MediaFileAnimationType::MikuMikuDance);
+      assert_eq!(MediaFileAnimationType::from_str("mixamo").unwrap(), MediaFileAnimationType::Mixamo);
+      assert_eq!(MediaFileAnimationType::from_str("mocap_net").unwrap(), MediaFileAnimationType::MocapNet);
+      assert_eq!(MediaFileAnimationType::from_str("rigify").unwrap(), MediaFileAnimationType::Rigify);
+      assert!(MediaFileAnimationType::from_str("foo").is_err());
+    }
+
+    #[test]
+    fn all_variants() {
+      let mut variants = MediaFileAnimationType::all_variants();
+      assert_eq!(variants.len(), 4);
+      assert_eq!(variants.pop_first(), Some(MediaFileAnimationType::MikuMikuDance));
+      assert_eq!(variants.pop_first(), Some(MediaFileAnimationType::Mixamo));
+      assert_eq!(variants.pop_first(), Some(MediaFileAnimationType::MocapNet));
+      assert_eq!(variants.pop_first(), Some(MediaFileAnimationType::Rigify));
+      assert_eq!(variants.pop_first(), None);
+    }
+  }
+
+  mod mechanical_checks {
+    use super::*;
+
+    #[test]
+    fn variant_length() {
+      use strum::IntoEnumIterator;
+      assert_eq!(MediaFileAnimationType::all_variants().len(), MediaFileAnimationType::iter().len());
+    }
+
+    #[test]
+    fn round_trip() {
+      for variant in MediaFileAnimationType::all_variants() {
+        assert_eq!(variant, MediaFileAnimationType::from_str(variant.to_str()).unwrap());
+        assert_eq!(variant, MediaFileAnimationType::from_str(&format!("{}", variant)).unwrap());
+        assert_eq!(variant, MediaFileAnimationType::from_str(&format!("{:?}", variant)).unwrap());
+      }
+    }
+
+    #[test]
+    fn serialized_length_ok_for_database() {
+      const MAX_LENGTH : usize = 32;
+      for variant in MediaFileAnimationType::all_variants() {
+        let serialized = variant.to_str();
+        assert!(serialized.len() > 0, "variant {:?} is too short", variant);
+        assert!(serialized.len() <= MAX_LENGTH, "variant {:?} is too long", variant);
+      }
+    }
+  }
+}
diff --git a/crates/_types/enums/src/by_table/media_files/mod.rs b/crates/_types/enums/src/by_table/media_files/mod.rs
index 84869955e4..827ef8cb12 100644
--- a/crates/_types/enums/src/by_table/media_files/mod.rs
+++ b/crates/_types/enums/src/by_table/media_files/mod.rs
@@ -1,3 +1,4 @@
+pub mod media_file_animation_type;
 pub mod media_file_class;
 pub mod media_file_origin_category;
 pub mod media_file_origin_model_type;