add wildcard branches for matches on enums

src/software/resampling/dither.rs

@@ -34,6 +34,8 @@ impl From<SwrDitherType> for Dither {
             SWR_DITHER_NS_LOW_SHIBATA => Dither::NoiseShapingLowShibata,
             SWR_DITHER_NS_HIGH_SHIBATA => Dither::NoiseShapingHighShibata,
             SWR_DITHER_NB => Dither::None,
+
+            _ => unimplemented!(),
         }
     }
 }

src/software/resampling/engine.rs

@@ -13,6 +13,8 @@ impl From<SwrEngine> for Engine {
             SWR_ENGINE_SWR => Engine::Software,
             SWR_ENGINE_SOXR => Engine::SoundExchange,
             SWR_ENGINE_NB => Engine::Software,
+
+            _ => unimplemented!(),
         }
     }
 }

src/software/resampling/filter.rs

@@ -14,6 +14,8 @@ impl From<SwrFilterType> for Filter {
             SWR_FILTER_TYPE_CUBIC => Filter::Cubic,
             SWR_FILTER_TYPE_BLACKMAN_NUTTALL => Filter::BlackmanNuttall,
             SWR_FILTER_TYPE_KAISER => Filter::Kaiser,
+
+            _ => unimplemented!(),
         }
     }
 }