Dirty implementation of atrac3 encoder:

 - no JS mode
 - constant quantiser for tonal components
 - gain controll implemented but produces some artifacts with real signals.
 - etc...

1 files changed, 36 insertions, 0 deletions

diff --git a/src/transient_detector_ut.cpp b/src/transient_detector_ut.cpp
new file mode 100644
index 0000000..5c018c3
--- /dev/null
+++ b/src/transient_detector_ut.cpp
@@ -0,0 +1,36 @@
+#include "transient_detector.h"
+#include <gtest/gtest.h>
+
+#include <vector>
+#include <cmath>
+
+using std::vector;
+using namespace NAtracDEnc;
+TEST(AnalyzeGain, AnalyzeGainSimple) {
+
+    TFloat in[256];
+    for (int i = 0; i < 256; ++i) {
+        if (i <= 24) {
+            in[i] = 1.0;
+        } else if ( i > 24 && i <= 32) {
+            in[i] = 8.0;
+        } else if ( i > 32 && i <= 66) {
+            in[i] = 128.0;
+        } else {
+            in[i] = 0.5;
+        }
+    }
+    vector<TFloat> res = AnalyzeGain(in, 256, 32, false);
+    EXPECT_EQ(res.size(), 32);    
+
+//    for (TFloat v : res)
+//        std::cout << v << std::endl;
+    for (int i = 0; i < 3; ++i)
+        EXPECT_EQ(res[i], 1.0);
+    for (int i = 3; i < 4; ++i)
+        EXPECT_EQ(res[i], 8.0);
+    for (int i = 4; i < 9; ++i)
+        EXPECT_EQ(res[i], 128.0);
+    for (int i = 9; i < 32; ++i)
+        EXPECT_EQ(res[i], 0.5);
+}