Merge pull request seasalt-ai#6 from dschnabel/patch-1

C++ demo for use with SoX

.gitignore

@@ -20,6 +20,7 @@ Snowboy.pm
 /examples/C++/portaudio
 /examples/C++/demo
 /examples/C++/demo2
+/examples/C++/demo3
 /examples/Java/Demo.class
 /examples/Perl/data/
 /examples/iOS/Obj-C/Pods/Pods.xcodeproj/xcuserdata/

examples/C++/Makefile

@@ -1,6 +1,6 @@
 include demo.mk
 
-BINFILES = demo demo2
+BINFILES = demo demo2 demo3
 
 all: $(BINFILES)
 

examples/C++/demo3.cc

@@ -0,0 +1,39 @@
+#include "include/snowboy-detect.h"
+#include <iostream>
+#include <string.h>
+
+using namespace std;
+
+#define BUFFER_SIZE 2000
+
+/**
+ * run like this:
+ * rec -q -r 16000 -c 1 -b 16 -e signed-integer -t wav - | ./demo3
+ */
+int main(int argc, char* argv[]) {
+  snowboy::SnowboyDetect detector("resources/common.res", "resources/models/snowboy.umdl");
+  detector.SetSensitivity("0.5");
+  detector.SetAudioGain(1.0);
+  detector.ApplyFrontend(false);
+
+  short data_buffer[BUFFER_SIZE];
+
+  int mode = 0;
+  while (1) {
+    cin.read((char*)&data_buffer[0], BUFFER_SIZE*2);
+
+    int newMode = detector.RunDetection(&data_buffer[0], BUFFER_SIZE);
+    if (newMode != mode) {
+      string str;
+      switch (newMode) {
+        case -2: str = "silence"; break;
+        case -1: str = "error"; break;
+        case  0: str = "noise"; break;
+        default: str = "hotword"; break;
+      }
+
+      mode = newMode;
+      cout << str << endl;
+    }
+  }
+}