--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/foosdk/sdk/foobar2000/helpers/packet_decoder_aac_common.h	Mon Jan 05 02:15:46 2026 -0500
@@ -0,0 +1,46 @@
+#pragma once
+#include "../SDK/packet_decoder.h"
+
+/*
+Helper code with common AAC packet_decoder functionality. Primarily meant for foo_input_std-internal use.
+*/
+
+class packet_decoder_aac_common : public packet_decoder {
+public:
+    static pfc::array_t<uint8_t> parseDecoderSetup( const GUID & p_owner,t_size p_param1,const void * p_param2,t_size p_param2size);
+    static bool testDecoderSetup( const GUID & p_owner, t_size p_param1, const void * p_param2, t_size p_param2size );
+    static size_t skipADTSHeader( const uint8_t * data,size_t size );
+    
+	static unsigned get_max_frame_dependency_()
+	{
+		return 2;
+	}
+	static double get_max_frame_dependency_time_()
+	{
+		return 1024.0 / 8000.0;
+	}
+    
+    static void make_ESDS( pfc::array_t<uint8_t> & outESDS, const void * inCodecPrivate, size_t inCodecPrivateSize );
+	static const char * objectTypeStr( unsigned ot );
+	struct audioSpecificConfig_t {
+		unsigned m_objectType;
+		unsigned m_sampleRate;
+        unsigned m_channels;
+		unsigned m_sbrRate;
+		bool m_shortWindow;
+		bool m_explicitSBR, m_explicitPS;
+        
+        bool isUSAC() const { return m_objectType == 42 || m_objectType == 45; }
+        const char * objectTypeStr() const;
+	};
+
+	static audioSpecificConfig_t parseASC(const void *, size_t);
+
+	static unsigned get_ASC_object_type(const void *, size_t);
+
+	static pfc::array_t<uint8_t> buildASC(audioSpecificConfig_t const&);
+
+	// If no sane ASC was provided by container, make something up to initialize decoder and attempt decoding.
+	static pfc::array_t<uint8_t> buildSafeASC(unsigned rate = 0);
+
+};