Add safe bindings for speaker diarization

src/whisper_ctx.rs

@@ -517,6 +517,20 @@ impl WhisperContext {
     pub fn token_transcribe(&self) -> WhisperToken {
         unsafe { whisper_rs_sys::whisper_token_transcribe(self.ctx) }
     }
+
+    /// Get whether the next segment is predicted as a speaker turn
+    ///
+    /// # Arguments
+    /// * i_segment: Segment index.
+    ///
+    /// # Returns
+    /// bool
+    ///
+    /// # C++ equivalent
+    /// `bool whisper_full_get_segment_speaker_turn_next(struct whisper_context * ctx, int i_segment)`
+    pub fn full_get_segment_speaker_turn_next(&mut self, i_segment: c_int) -> bool {
+        unsafe { whisper_rs_sys::whisper_full_get_segment_speaker_turn_next(self.ctx, i_segment) }
+    }
 }
 
 impl Drop for WhisperContext {

src/whisper_state.rs

@@ -544,4 +544,20 @@ impl<'a> WhisperState<'a> {
             },
         )
     }
+
+    /// Get whether the next segment is predicted as a speaker turn.
+    ///
+    /// # Arguments
+    /// * i_segment: Segment index.
+    ///
+    /// # Returns
+    /// bool
+    ///
+    /// # C++ equivalent
+    /// `bool whisper_full_get_segment_speaker_turn_next_from_state(struct whisper_state * state, int i_segment)`
+    pub fn full_get_segment_speaker_turn_next(&mut self, i_segment: c_int) -> bool {
+        unsafe {
+            whisper_rs_sys::whisper_full_get_segment_speaker_turn_next_from_state(self.ptr, i_segment)
+        }
+    }
 }