diff --git a/src/whisper_state.rs b/src/whisper_state.rs
index 4a9c254..22418ee 100644
--- a/src/whisper_state.rs
+++ b/src/whisper_state.rs
@@ -346,25 +346,43 @@ impl WhisperState {
         Ok(unsafe { whisper_rs_sys::whisper_full_get_segment_t1_from_state(self.ptr, segment) })
     }
 
+    fn full_get_segment_raw(&self, segment: c_int) -> Result<&CStr, WhisperError> {
+        let ret =
+            unsafe { whisper_rs_sys::whisper_full_get_segment_text_from_state(self.ptr, segment) };
+        if ret.is_null() {
+            return Err(WhisperError::NullPointer);
+        }
+        unsafe { Ok(CStr::from_ptr(ret)) }
+    }
+
+    /// Get the raw bytes of the specified segment.
+    ///
+    /// # Arguments
+    /// * segment: Segment index.
+    ///
+    /// # Returns
+    /// `Ok(Vec<u8>)` on success, with the returned bytes or
+    /// `Err(WhisperError::NullPointer)` on failure (this is the only possible error)
+    ///
+    /// # C++ equivalent
+    /// `const char * whisper_full_get_segment_text(struct whisper_context * ctx, int i_segment)`
+    pub fn full_get_segment_bytes(&self, segment: c_int) -> Result<Vec<u8>, WhisperError> {
+        Ok(self.full_get_segment_raw(segment)?.to_bytes().to_vec())
+    }
+
     /// Get the text of the specified segment.
     ///
     /// # Arguments
     /// * segment: Segment index.
     ///
     /// # Returns
-    /// Ok(String) on success, Err(WhisperError) on failure.
+    /// `Ok(String)` on success, with the UTF-8 validated string, or
+    /// `Err(WhisperError)` on failure (either `NullPointer` or `InvalidUtf8`)
     ///
     /// # C++ equivalent
     /// `const char * whisper_full_get_segment_text(struct whisper_context * ctx, int i_segment)`
     pub fn full_get_segment_text(&self, segment: c_int) -> Result<String, WhisperError> {
-        let ret =
-            unsafe { whisper_rs_sys::whisper_full_get_segment_text_from_state(self.ptr, segment) };
-        if ret.is_null() {
-            return Err(WhisperError::NullPointer);
-        }
-        let c_str = unsafe { CStr::from_ptr(ret) };
-        let r_str = c_str.to_str()?;
-        Ok(r_str.to_string())
+        Ok(self.full_get_segment_raw(segment)?.to_str()?.to_string())
     }
 
     /// Get the text of the specified segment.
@@ -376,38 +394,16 @@ impl WhisperState {
     /// * segment: Segment index.
     ///
     /// # Returns
-    /// Ok(String) on success, Err(WhisperError) on failure.
+    /// `Ok(String)` on success, or
+    /// `Err(WhisperError::NullPointer)` on failure (this is the only possible error)
     ///
     /// # C++ equivalent
     /// `const char * whisper_full_get_segment_text(struct whisper_context * ctx, int i_segment)`
     pub fn full_get_segment_text_lossy(&self, segment: c_int) -> Result<String, WhisperError> {
-        let ret =
-            unsafe { whisper_rs_sys::whisper_full_get_segment_text_from_state(self.ptr, segment) };
-        if ret.is_null() {
-            return Err(WhisperError::NullPointer);
-        }
-        let c_str = unsafe { CStr::from_ptr(ret) };
-        Ok(c_str.to_string_lossy().to_string())
-    }
-
-    /// Get the bytes of the specified segment.
-    ///
-    /// # Arguments
-    /// * segment: Segment index.
-    ///
-    /// # Returns
-    /// `Ok(Vec<u8>)` on success, `Err(WhisperError)` on failure.
-    ///
-    /// # C++ equivalent
-    /// `const char * whisper_full_get_segment_text(struct whisper_context * ctx, int i_segment)`
-    pub fn full_get_segment_bytes(&self, segment: c_int) -> Result<Vec<u8>, WhisperError> {
-        let ret =
-            unsafe { whisper_rs_sys::whisper_full_get_segment_text_from_state(self.ptr, segment) };
-        if ret.is_null() {
-            return Err(WhisperError::NullPointer);
-        }
-        let c_str = unsafe { CStr::from_ptr(ret) };
-        Ok(c_str.to_bytes().to_vec())
+        Ok(self
+            .full_get_segment_raw(segment)?
+            .to_string_lossy()
+            .to_string())
     }
 
     /// Get number of tokens in the specified segment.