T13: NativeMixer mirror server pipeline (track gain/pan constant-power + brickwall limiter tanh, wired VST2/VST3 bridge, golden test 0.0001dB)

native_host/tests/native_mixer_test.cpp

@@ -0,0 +1,84 @@
+// native_mixer_test.cpp — golden test driver cho NativeMixer (T13).
+//
+// Đọc input raw float32 interleaved stereo, áp NativeMixer (track gain/pan +
+// master limiter) theo argv, ghi output raw float32 interleaved. Python
+// (test_native_mixer_golden.py) so RMS/peak với reference server pipeline.
+//
+// Usage: native_mixer_test.exe <in.raw> <out.raw> <gainDb> <pan> <limActive> <thresholdDb>
+#include <cstdio>
+#include <cstdlib>
+#include <cstdint>
+#include <vector>
+
+#include "NativeMixer.h"
+
+using sonicforge::int32;
+
+int main (int argc, char** argv)
+{
+    if (argc < 7)
+    {
+        std::fprintf (stderr, "usage: native_mixer_test in.raw out.raw gainDb pan limActive thresholdDb\n");
+        return 2;
+    }
+    const char* inPath = argv[1];
+    const char* outPath = argv[2];
+    const float gainDb = static_cast<float> (std::atof (argv[3]));
+    const float pan = static_cast<float> (std::atof (argv[4]));
+    const int32 limActive = std::atoi (argv[5]);
+    const float thresholdDb = static_cast<float> (std::atof (argv[6]));
+
+    FILE* f = std::fopen (inPath, "rb");
+    if (!f)
+    {
+        std::fprintf (stderr, "cannot open %s\n", inPath);
+        return 2;
+    }
+    std::fseek (f, 0, SEEK_END);
+    const long nBytes = std::ftell (f);
+    std::fseek (f, 0, SEEK_SET);
+    if (nBytes <= 0 || (nBytes % 8) != 0)
+    {
+        std::fprintf (stderr, "bad input size %ld\n", nBytes);
+        std::fclose (f);
+        return 2;
+    }
+    std::vector<float> buf (static_cast<size_t> (nBytes) / sizeof (float));
+    if (std::fread (buf.data (), sizeof (float), buf.size (), f) != buf.size ())
+    {
+        std::fprintf (stderr, "short read\n");
+        std::fclose (f);
+        return 2;
+    }
+    std::fclose (f);
+
+    const int32 frames = static_cast<int32> (buf.size () / 2);
+    std::vector<float> inL (static_cast<size_t> (frames));
+    std::vector<float> inR (static_cast<size_t> (frames));
+    for (int32 i = 0; i < frames; ++i)
+    {
+        inL[static_cast<size_t> (i)] = buf[static_cast<size_t> (2 * i)];
+        inR[static_cast<size_t> (i)] = buf[static_cast<size_t> (2 * i + 1)];
+    }
+
+    sonicforge::NativeMixer mixer;
+    mixer.setTrack (sonicforge::TrackGainPan::fromDbPan (gainDb, pan));
+    mixer.setLimiter (limActive != 0, thresholdDb);
+    mixer.processInPlace (inL.data (), inR.data (), frames);
+
+    for (int32 i = 0; i < frames; ++i)
+    {
+        buf[static_cast<size_t> (2 * i)] = inL[static_cast<size_t> (i)];
+        buf[static_cast<size_t> (2 * i + 1)] = inR[static_cast<size_t> (i)];
+    }
+
+    FILE* g = std::fopen (outPath, "wb");
+    if (!g)
+    {
+        std::fprintf (stderr, "cannot write %s\n", outPath);
+        return 2;
+    }
+    std::fwrite (buf.data (), sizeof (float), buf.size (), g);
+    std::fclose (g);
+    return 0;
+}