From 0429af667865f748f277cc1436fe91620115780c Mon Sep 17 00:00:00 2001
From: Beingpax <prakashjoshipaxtek@gmail.com>
Date: Fri, 12 Sep 2025 14:13:31 +0545
Subject: [PATCH] Use whisper module in VoiceActivityDetector to resolve
 calling-convention conflict with whisper_vad_default_params; no functional
 changes

---
 VoiceInk/Services/VoiceActivityDetector.swift | 67 +++----------------
 1 file changed, 11 insertions(+), 56 deletions(-)

diff --git a/VoiceInk/Services/VoiceActivityDetector.swift b/VoiceInk/Services/VoiceActivityDetector.swift
index 4937c2d..67cd0f3 100644
--- a/VoiceInk/Services/VoiceActivityDetector.swift
+++ b/VoiceInk/Services/VoiceActivityDetector.swift
@@ -1,6 +1,11 @@
 import Foundation
 import AVFoundation
 import os.log
+#if canImport(whisper)
+import whisper
+#else
+#error("Unable to import whisper module. Please check your project configuration.")
+#endif
 
 // MARK: - C API Bridge
 
@@ -8,60 +13,6 @@ import os.log
 fileprivate typealias WhisperVADContext = OpaquePointer
 fileprivate typealias WhisperVADSegments = OpaquePointer
 
-// Define the C function signatures for Swift, scoped to this file
-
-@_silgen_name("whisper_vad_default_params")
-fileprivate func whisper_vad_default_params() -> whisper_vad_params
-
-@_silgen_name("whisper_vad_default_context_params")
-fileprivate func whisper_vad_default_context_params() -> whisper_vad_context_params
-
-@_silgen_name("whisper_vad_init_from_file_with_params")
-fileprivate func whisper_vad_init_from_file_with_params(_ path_model: UnsafePointer<CChar>, _ params: whisper_vad_context_params) -> WhisperVADContext?
-
-@_silgen_name("whisper_vad_detect_speech")
-fileprivate func whisper_vad_detect_speech(_ vctx: WhisperVADContext, _ samples: UnsafePointer<Float>, _ n_samples: Int32) -> Bool
-
-@_silgen_name("whisper_vad_n_probs")
-fileprivate func whisper_vad_n_probs(_ vctx: WhisperVADContext) -> Int32
-
-@_silgen_name("whisper_vad_probs")
-fileprivate func whisper_vad_probs(_ vctx: WhisperVADContext) -> UnsafeMutablePointer<Float>
-
-@_silgen_name("whisper_vad_segments_from_probs")
-fileprivate func whisper_vad_segments_from_probs(_ vctx: WhisperVADContext, _ params: whisper_vad_params) -> WhisperVADSegments?
-
-@_silgen_name("whisper_vad_segments_n_segments")
-fileprivate func whisper_vad_segments_n_segments(_ segments: WhisperVADSegments) -> Int32
-
-@_silgen_name("whisper_vad_segments_get_segment_t0")
-fileprivate func whisper_vad_segments_get_segment_t0(_ segments: WhisperVADSegments, _ i_segment: Int32) -> Float
-
-@_silgen_name("whisper_vad_segments_get_segment_t1")
-fileprivate func whisper_vad_segments_get_segment_t1(_ segments: WhisperVADSegments, _ i_segment: Int32) -> Float
-
-@_silgen_name("whisper_vad_free_segments")
-fileprivate func whisper_vad_free_segments(_ segments: WhisperVADSegments)
-
-@_silgen_name("whisper_vad_free")
-fileprivate func whisper_vad_free(_ ctx: WhisperVADContext)
-
-// Structs matching whisper.h, scoped to this file
-fileprivate struct whisper_vad_params {
-    var threshold: Float
-    var min_speech_duration_ms: Int32
-    var min_silence_duration_ms: Int32
-    var max_speech_duration_s: Float
-    var speech_pad_ms: Int32
-    var samples_overlap: Float
-}
-
-fileprivate struct whisper_vad_context_params {
-    var n_threads: Int32
-    var use_gpu: Bool
-    var gpu_device: Int32
-}
-
 
 // MARK: - VoiceActivityDetector Class
 
@@ -72,8 +23,12 @@ class VoiceActivityDetector {
     init?(modelPath: String) {
         var contextParams = whisper_vad_default_context_params()
         contextParams.n_threads = max(1, min(8, Int32(ProcessInfo.processInfo.processorCount) - 2))
-        
-        guard let context = whisper_vad_init_from_file_with_params(modelPath, contextParams) else {
+
+        let contextOpt: WhisperVADContext? = modelPath.withCString { cPath in
+            whisper_vad_init_from_file_with_params(cPath, contextParams)
+        }
+
+        guard let context = contextOpt else {
             logger.error("Failed to initialize VAD context.")
             return nil
         }