--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/foosdk/sdk/foobar2000/SDK/dsp_manager.h	Mon Jan 05 02:15:46 2026 -0500
@@ -0,0 +1,109 @@
+#pragma once
+
+#ifdef FOOBAR2000_HAVE_DSP
+#include "dsp.h"
+
+//! Helper class for running audio data through a DSP chain.
+class dsp_manager {
+public:
+    //! @param creationFlags See dsp_entry::flag_*
+	dsp_manager(unsigned creationFlags = 0) : m_creationFlags(creationFlags) {}
+
+	//! Alters the DSP chain configuration. Should be called before the first run() to set the configuration but can be also called anytime later between run() calls.
+	void set_config( const dsp_chain_config & p_data );
+	//! Runs DSP on the specified chunk list.
+	//! @returns Current DSP latency in seconds.
+	double run(dsp_chunk_list * p_list,dsp_track_t const & p_cur_file,unsigned p_flags,abort_callback & p_abort);
+	//! Flushes the DSP (e.g. when seeking).
+	void flush();
+
+	//! Equivalent to set_config() with empty configuration.
+	void close();
+
+	//! Returns whether there's at least one active DSP in the configuration.
+	bool is_active() const;
+	bool need_track_change_mark() const;
+
+private:
+    const unsigned m_creationFlags;
+	struct t_dsp_chain_entry {
+		service_ptr_t<dsp> m_dsp;
+		dsp_preset_impl m_preset;
+		bool m_recycle_flag;
+	};
+	typedef pfc::chain_list_v2_t<t_dsp_chain_entry> t_dsp_chain;
+
+	t_dsp_chain m_chain;
+	dsp_chain_config_impl m_config;
+	bool m_config_changed = false;
+	
+	void dsp_run(t_dsp_chain::const_iterator p_iter,dsp_chunk_list * list,const dsp_track_t & cur_file,unsigned flags,double & latency,abort_callback&);
+
+	dsp_manager(const dsp_manager &) = delete;
+	const dsp_manager & operator=(const dsp_manager&) = delete;
+};
+
+//! Core API for accessing core playback DSP settings as well as spawning DSP configuration dialogs. \n
+//! Use dsp_config_manager::get() to obtain an instance.
+class dsp_config_manager : public service_base {
+	FB2K_MAKE_SERVICE_COREAPI(dsp_config_manager);
+public:
+	//! Retrieves current core playback DSP settings.
+	virtual void get_core_settings(dsp_chain_config & p_out) = 0;
+	//! Changes current core playback DSP settings.
+	virtual void set_core_settings(const dsp_chain_config & p_data) = 0;
+	
+#ifdef _WIN32
+	//! Runs a modal DSP settings dialog.
+	//! @param p_data DSP chain configuration to edit - contains initial configuration to put in the dialog when called, receives the new configuration on successful edit.
+	//! @returns True when user approved DSP configuration changes (pressed the "OK" button), false when the user cancelled them ("Cancel" button).
+	virtual bool configure_popup(dsp_chain_config & p_data,fb2k::hwnd_t p_parent,const char * p_title) = 0;
+
+	//! Spawns an embedded DSP settings dialog. 
+	//! @param p_initdata Initial DSP chain configuration to put in the dialog.
+	//! @param p_parent Parent window to contain the embedded dialog.
+	//! @param p_id Control ID of the embedded dialog. The parent window will receive a WM_COMMAND with BN_CLICKED and this identifier when user changes settings in the embedded dialog.
+	//! @param p_from_modal Must be set to true when the parent window is a modal dialog, false otherwise.
+	virtual fb2k::hwnd_t configure_embedded(const dsp_chain_config & p_initdata,fb2k::hwnd_t p_parent,unsigned p_id,bool p_from_modal) = 0;
+	//! Retrieves current settings from an embedded DSP settings dialog. See also: configure_embedded().
+	virtual void configure_embedded_retrieve(fb2k::hwnd_t wnd,dsp_chain_config & p_data) = 0;
+	//! Changes current settings in an embedded DSP settings dialog. See also: configure_embedded().
+	virtual void configure_embedded_change(fb2k::hwnd_t wnd,const dsp_chain_config & p_data) = 0;
+#endif
+
+	enum default_insert_t {
+		default_insert_last,
+		default_insert_first,
+	};
+	//! Helper - enables a DSP in core playback settings.
+	void core_enable_dsp(const dsp_preset & preset, default_insert_t insertWhere = default_insert_first );
+	//! Helper - disables a DSP in core playback settings.
+	void core_disable_dsp(const GUID & id);
+	//! Helper - if a DSP with the specified identifier is present in playback settings, retrieves its configuration and returns true, otherwise returns false.
+	bool core_query_dsp(const GUID & id, dsp_preset & out);
+};
+
+//! \since 1.4
+//! Allows manipulation of DSP presets saved by user. \n
+//! Note that there's no multi thread safety implemented, all methods are valid from main thread only.
+class dsp_config_manager_v2 : public dsp_config_manager {
+	FB2K_MAKE_SERVICE_COREAPI_EXTENSION(dsp_config_manager_v2, dsp_config_manager)
+public:
+	virtual size_t get_preset_count() = 0;
+	virtual void get_preset_name( size_t index, pfc::string_base & out ) = 0;
+	virtual void get_preset_data( size_t index, dsp_chain_config & out ) = 0;
+	virtual void select_preset( size_t which ) = 0;
+	virtual size_t get_selected_preset() = 0;
+};
+
+//! Callback class for getting notified about core playback DSP settings getting altered. \n
+//! Register your implementations with static service_factory_single_t<myclass> g_myclass_factory;
+class NOVTABLE dsp_config_callback : public service_base {
+	FB2K_MAKE_SERVICE_INTERFACE_ENTRYPOINT(dsp_config_callback);
+public:
+	//! Called when core playback DSP settings change. \n
+	//! Note: you must not try to alter core playback DSP settings inside this callback, or call anything else that possibly alters core playback DSP settings.
+	virtual void on_core_settings_change(const dsp_chain_config & p_newdata) = 0;
+};
+
+#endif // FOOBAR2000_HAVE_DSP