1 files changed, 48 insertions, 0 deletions
diff --git a/alc/ambdec.h b/alc/ambdec.h
new file mode 100644
index 00000000..ff7b71ee
--- /dev/null
+++ b/alc/ambdec.h
@@ -0,0 +1,48 @@
+#ifndef AMBDEC_H
+#define AMBDEC_H
+
+#include <array>
+#include <string>
+
+#include "ambidefs.h"
+#include "vector.h"
+
+/* Helpers to read .ambdec configuration files. */
+
+enum class AmbDecScale {
+    N3D,
+    SN3D,
+    FuMa,
+};
+struct AmbDecConf {
+    std::string Description;
+    int Version{0}; /* Must be 3 */
+
+    unsigned int ChanMask{0u};
+    unsigned int FreqBands{0u}; /* Must be 1 or 2 */
+    AmbDecScale CoeffScale{};
+
+    float XOverFreq{0.0f};
+    float XOverRatio{0.0f};
+
+    struct SpeakerConf {
+        std::string Name;
+        float Distance{0.0f};
+        float Azimuth{0.0f};
+        float Elevation{0.0f};
+        std::string Connection;
+    };
+    al::vector<SpeakerConf> Speakers;
+
+    using CoeffArray = std::array<float,MAX_AMBI_CHANNELS>;
+    /* Unused when FreqBands == 1 */
+    float LFOrderGain[MAX_AMBI_ORDER+1]{};
+    al::vector<CoeffArray> LFMatrix;
+
+    float HFOrderGain[MAX_AMBI_ORDER+1]{};
+    al::vector<CoeffArray> HFMatrix;
+
+    int load(const char *fname) noexcept;
+};
+
+#endif /* AMBDEC_H */