SAPI: Fix getting voice list.

Examples/C/SRALExample.c

@@ -49,6 +49,28 @@ int main(void) {
 	scanf("%s", text);
 
 	SRAL_StopSpeech(); // Stops the delay thread
+
+	// Set voice
+	if (SRAL_GetEngineFeatures(0) & SUPPORTS_SELECT_VOICE) {
+		int voice_count = *(int*)SRAL_GetEngineParameter(0, VOICE_COUNT);
+		if (voice_count > 0) {
+			const char** voices = (const char**)SRAL_GetEngineParameter(0, VOICE_LIST);
+			if (voices != NULL) {
+				printf("Enter voice index to select\nVoice list:\n");
+				for (int i = 0; i < voice_count; i++) {
+					printf("%d: %s\n", i, voices[i]);
+					free((void*)voices[i]);
+				}
+				free(voices);
+				int index = 0;
+				scanf("%d", &index);
+				if (index >= 0 && index < voice_count) {
+					SRAL_SetEngineParameter(0, VOICE_INDEX, &index);
+				}
+			}
+		}
+	}
+
 	// Speech rate
 	if (SRAL_GetEngineFeatures(0) & SUPPORTS_SPEECH_RATE) {
 

Include/SRAL.h

@@ -85,6 +85,7 @@ extern "C" {
 		SPEECH_VOLUME,
 		VOICE_INDEX,
 		VOICE_LIST,
+		VOICE_COUNT,
 		SYMBOL_LEVEL,
 		SAPI_TRIM_THRESHOLD,
 		ENABLE_SPELLING,

SRC/SAPI.cpp

@@ -4,7 +4,6 @@
 #include<string>
 #include<thread>
 
-
 static WasapiPlayer* g_player = nullptr; // Make it global to avoid multiple voices when reinitializing
 
 
@@ -209,13 +208,18 @@ void* SAPI::GetParameter(int param) {
 		blastspeak_get_voice_volume(instance, val);
 		return static_cast<void*>(val);
 	case VOICE_LIST:
-		if (!voices.empty())
-			voices.clear();
-		voices.resize(instance->voice_count);
+		if (voices)
+			delete[] voices;
+		voices = new const char*[instance->voice_count];
 		for (int i = 0; i < instance->voice_count; ++i) {
-			voices[i] = blastspeak_get_voice_description(instance, i);
+			const char* voice_desc = blastspeak_get_voice_description(instance, i);
+			voices[i] = new char[strlen(voice_desc) + 1];
+			strcpy(const_cast<char*>(voices[i]), voice_desc);
 		}
-		return static_cast<void*>(voices.data());
+		return voices;
+	case VOICE_COUNT:
+		*val = instance->voice_count;
+		return static_cast<void*>(val);
 	default:
 		return nullptr;
 	}

SRC/SAPI.h

@@ -6,7 +6,6 @@
 #include "../Dep/wasapi.h"
 #include "../Include/SRAL.h"
 #include "Engine.h"
-#include <vector>
 
 class SAPI : public Engine {
 public:
@@ -46,6 +45,6 @@ class SAPI : public Engine {
 	blastspeak* instance = nullptr;
 	WAVEFORMATEX wfx;
 	int trimThreshold = 20;
-	std::vector<const char*> voices;
+	const char** voices = nullptr;
 };
 #endif