--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/foosdk/sdk/foobar2000/SDK/album_art.h	Mon Jan 05 02:15:46 2026 -0500
@@ -0,0 +1,272 @@
+#pragma once
+
+#include <functional>
+#include "commonObjects.h"
+#include "exception_io.h"
+#include "filesystem.h"
+#include "metadb.h"
+
+namespace fb2k {
+    class image;
+}
+//! Namespace containing identifiers of album art types.
+namespace album_art_ids {
+	//! Front cover.
+	static constexpr GUID cover_front = { 0xf1e66f4e, 0xfe09, 0x4b94, { 0x91, 0xa3, 0x67, 0xc2, 0x3e, 0xd1, 0x44, 0x5e } };
+	//! Back cover.
+	static constexpr GUID cover_back = { 0xcb552d19, 0x86d5, 0x434c, { 0xac, 0x77, 0xbb, 0x24, 0xed, 0x56, 0x7e, 0xe4 } };
+	//! Picture of a disc or other storage media.
+	static constexpr GUID disc = { 0x3dba9f36, 0xf928, 0x4fa4, { 0x87, 0x9c, 0xd3, 0x40, 0x47, 0x59, 0x58, 0x7e } };
+	//! Album-specific icon (NOT a file type icon).
+	static constexpr GUID icon = { 0x74cdf5b4, 0x7053, 0x4b3d, { 0x9a, 0x3c, 0x54, 0x69, 0xf5, 0x82, 0x6e, 0xec } };
+	//! Artist picture.
+	static constexpr GUID artist = { 0x9a654042, 0xacd1, 0x43f7, { 0xbf, 0xcf, 0xd3, 0xec, 0xf, 0xfe, 0x40, 0xfa } };
+
+	size_t num_types();
+	GUID query_type( size_t );
+	// returns lowercase name
+	const char * query_name( size_t );
+	const char * name_of( const GUID & );
+	const char * name_of_ex( const GUID &, const char * def = "undefined");
+	// returns Capitalized name
+	const char * query_capitalized_name( size_t );
+	const char * capitalized_name_of( const GUID & );
+
+	GUID by_name(const char*);
+};
+
+PFC_DECLARE_EXCEPTION(exception_album_art_not_found,exception_io_not_found,"Attached picture not found");
+PFC_DECLARE_EXCEPTION(exception_album_art_unsupported_entry,exception_io_data,"Unsupported attached picture entry");
+
+PFC_DECLARE_EXCEPTION(exception_album_art_unsupported_format,exception_io_data,"Attached picture operations not supported for this file format");
+
+//! Class encapsulating access to album art stored in a media file. Use album_art_extractor class obtain album_art_extractor_instance referring to specified media file.
+class NOVTABLE album_art_extractor_instance : public service_base {
+	FB2K_MAKE_SERVICE_INTERFACE(album_art_extractor_instance,service_base);
+public:
+	//! Throws exception_album_art_not_found when the requested album art entry could not be found in the referenced media file.
+	virtual album_art_data_ptr query(const GUID & p_what,abort_callback & p_abort) = 0;
+
+	bool have_entry( const GUID & what, abort_callback & abort );
+	bool query(const GUID & what, album_art_data::ptr & out, abort_callback & abort);
+    
+    //! Future compatiblity, load directly to fb2k::image
+    //! Might be eventually specialized for operating system supported formats
+    service_ptr_t<fb2k::image> query_image_(const GUID &, abort_callback&);
+};
+
+//! Class encapsulating access to album art stored in a media file. Use album_art_editor class to obtain album_art_editor_instance referring to specified media file.
+class NOVTABLE album_art_editor_instance : public album_art_extractor_instance {
+	FB2K_MAKE_SERVICE_INTERFACE(album_art_editor_instance,album_art_extractor_instance);
+public:
+	//! Throws exception_album_art_unsupported_entry when the file format we're dealing with does not support specific entry.
+	virtual void set(const GUID & p_what,album_art_data_ptr p_data,abort_callback & p_abort) = 0;
+
+	//! Removes the requested entry. Fails silently when the entry doesn't exist.
+	virtual void remove(const GUID & p_what) = 0;
+
+	//! Finalizes file tag update operation.
+	virtual void commit(abort_callback & p_abort) = 0;
+
+	//! Helper; see album_art_editor_instance_v2::remove_all();
+	void remove_all_();
+};
+
+//! Extension to album_art_editor_instance, adds remove_all().
+class NOVTABLE album_art_editor_instance_v2 : public album_art_editor_instance {
+	FB2K_MAKE_SERVICE_INTERFACE(album_art_editor_instance_v2, album_art_editor_instance);
+public:
+	//! Tells the editor to remove all entries, including unsupported picture types that do not translate to fb2k ids.
+	virtual void remove_all() = 0;
+};
+
+typedef service_ptr_t<album_art_extractor_instance> album_art_extractor_instance_ptr;
+typedef service_ptr_t<album_art_editor_instance> album_art_editor_instance_ptr;
+
+//! Entrypoint class for accessing album art extraction functionality. Register your own implementation to allow album art extraction from your media file format. \n
+//! If you want to extract album art from a media file, it's recommended that you use album_art_manager API instead of calling album_art_extractor directly.
+class NOVTABLE album_art_extractor : public service_base {
+	FB2K_MAKE_SERVICE_INTERFACE_ENTRYPOINT(album_art_extractor);
+public:
+	//! Returns whether the specified file is one of formats supported by our album_art_extractor implementation.
+	//! @param p_path Path to file being queried.
+	//! @param p_extension Extension of file being queried (also present in p_path parameter) - provided as a separate parameter for performance reasons.
+	virtual bool is_our_path(const char * p_path,const char * p_extension) = 0;
+	
+	//! Instantiates album_art_extractor_instance providing access to album art stored in a specified media file. \n
+	//! Throws one of I/O exceptions on failure; exception_album_art_not_found when the file has no album art record at all.
+	//! @param p_filehint Optional; specifies a file interface to use for accessing the specified file; can be null - in that case, the implementation will open and close the file internally.
+	virtual album_art_extractor_instance_ptr open(file_ptr p_filehint,const char * p_path,abort_callback & p_abort) = 0;
+
+	static bool g_get_interface(service_ptr_t<album_art_extractor> & out,const char * path);
+	static bool g_is_supported_path(const char * path);
+	static album_art_extractor_instance_ptr g_open(file_ptr p_filehint,const char * p_path,abort_callback & p_abort);
+	static album_art_extractor_instance_ptr g_open_allowempty(file_ptr p_filehint,const char * p_path,abort_callback & p_abort);
+
+	//! Returns GUID of the corresponding input class. Null GUID if none.
+	GUID get_guid(); 
+};
+
+//! \since 1.5
+class NOVTABLE album_art_extractor_v2 : public album_art_extractor {
+	FB2K_MAKE_SERVICE_INTERFACE(album_art_extractor_v2 , album_art_extractor);
+public:
+	//! Returns GUID of the corresponding input class. Null GUID if none.
+	virtual GUID get_guid() = 0;
+};
+
+//! Entrypoint class for accessing album art editing functionality. Register your own implementation to allow album art editing on your media file format.
+class NOVTABLE album_art_editor : public service_base {
+	FB2K_MAKE_SERVICE_INTERFACE_ENTRYPOINT(album_art_editor);
+public:
+	//! Returns whether the specified file is one of formats supported by our album_art_editor implementation.
+	//! @param p_path Path to file being queried.
+	//! @param p_extension Extension of file being queried (also present in p_path parameter) - provided as a separate parameter for performance reasons.
+	virtual bool is_our_path(const char * p_path,const char * p_extension) = 0;
+
+	//! Instantiates album_art_editor_instance providing access to album art stored in a specified media file. \n
+	//! @param p_filehint Optional; specifies a file interface to use for accessing the specified file; can be null - in that case, the implementation will open and close the file internally.
+	virtual album_art_editor_instance_ptr open(file_ptr p_filehint,const char * p_path,abort_callback & p_abort) = 0;
+
+	//! Helper; attempts to retrieve an album_art_editor service pointer that supports the specified file.
+	//! @returns True on success, false on failure (no registered album_art_editor supports this file type).
+	static bool g_get_interface(service_ptr_t<album_art_editor> & out,const char * path);
+	//! Helper; returns whether one of registered album_art_editor implementations is capable of opening the specified file.
+	static bool g_is_supported_path(const char * path);
+
+	static album_art_editor_instance_ptr g_open(file_ptr p_filehint,const char * p_path,abort_callback & p_abort);
+
+	//! Returns GUID of the corresponding input class. Null GUID if none.
+	GUID get_guid();
+};
+
+//! \since 1.5
+class NOVTABLE album_art_editor_v2 : public album_art_editor {
+	FB2K_MAKE_SERVICE_INTERFACE( album_art_editor_v2, album_art_editor )
+public:
+	//! Returns GUID of the corresponding input class. Null GUID if none.
+	virtual GUID get_guid() = 0;
+};
+
+//! \since 0.9.5
+//! Helper API for extracting album art from APEv2 tags.
+class NOVTABLE tag_processor_album_art_utils : public service_base {
+	FB2K_MAKE_SERVICE_COREAPI(tag_processor_album_art_utils)
+public:
+
+	//! Throws one of I/O exceptions on failure; exception_album_art_not_found when the file has no album art record at all.
+	virtual album_art_extractor_instance_ptr open(file_ptr p_file,abort_callback & p_abort) = 0;
+
+	//! \since 1.1.6
+	//! Throws exception_not_implemented on earlier than 1.1.6.
+	virtual album_art_editor_instance_ptr edit(file_ptr p_file,abort_callback & p_abort) = 0;
+};
+
+
+//! Album art path list - see album_art_extractor_instance_v2
+class NOVTABLE album_art_path_list : public service_base {
+	FB2K_MAKE_SERVICE_INTERFACE(album_art_path_list, service_base)
+public:
+	virtual const char * get_path(t_size index) const = 0;
+	virtual t_size get_count() const = 0;
+
+	static bool equals(album_art_path_list const& v1, album_art_path_list const& v2);
+	static bool equals(ptr const& v1, ptr const& v2);
+};
+
+//! album_art_extractor_instance extension; lets the frontend query referenced file paths (eg. when using external album art).
+class NOVTABLE album_art_extractor_instance_v2 : public album_art_extractor_instance {
+	FB2K_MAKE_SERVICE_INTERFACE(album_art_extractor_instance_v2, album_art_extractor_instance)
+public:
+	virtual album_art_path_list::ptr query_paths(const GUID & p_what, abort_callback & p_abort) = 0;
+};
+
+
+//! \since 1.0
+//! Provides methods for interfacing with the foobar2000 core album art loader. \n
+//! Use this when you need to load album art for a specific group of tracks.
+class NOVTABLE album_art_manager_v2 : public service_base {
+	FB2K_MAKE_SERVICE_COREAPI(album_art_manager_v2)
+public:
+	//! Instantiates an album art extractor object for the specified group of items.
+	virtual album_art_extractor_instance_v2::ptr open(metadb_handle_list_cref items, pfc::list_base_const_t<GUID> const & ids, abort_callback & abort) = 0;
+	
+	//! Instantiates an album art extractor object that retrieves stub images.
+	virtual album_art_extractor_instance_v2::ptr open_stub(abort_callback & abort) = 0;
+};
+
+
+//! \since 1.0
+//! Called when no other album art source (internal, external, other registered fallbacks) returns relevant data for the specified items. \n
+//! Can be used to implement online lookup and such.
+class NOVTABLE album_art_fallback : public service_base {
+	FB2K_MAKE_SERVICE_INTERFACE_ENTRYPOINT(album_art_fallback)
+public:
+	virtual album_art_extractor_instance_v2::ptr open(metadb_handle_list_cref items, pfc::list_base_const_t<GUID> const & ids, abort_callback & abort) = 0;
+};
+
+//! \since 1.1.7
+class NOVTABLE album_art_manager_config : public service_base {
+	FB2K_MAKE_SERVICE_INTERFACE(album_art_manager_config, service_base)
+public:
+	virtual bool get_external_pattern(pfc::string_base & out, const GUID & type) = 0;
+	virtual bool use_embedded_pictures() = 0;
+	virtual bool use_fallbacks() = 0;
+};
+
+//! \since 1.1.7
+class NOVTABLE album_art_manager_v3 : public album_art_manager_v2 {
+	FB2K_MAKE_SERVICE_COREAPI_EXTENSION(album_art_manager_v3, album_art_manager_v2)
+public:
+	//! @param config An optional album_art_manager_config object to override global settings. Pass null to use global settings.
+	virtual album_art_extractor_instance_v2::ptr open_v3(metadb_handle_list_cref items, pfc::list_base_const_t<GUID> const & ids, album_art_manager_config::ptr config, abort_callback & abort) = 0;
+};
+
+//! \since 1.4
+//! A notification about a newly loaded album art being ready to display. \n
+//! See: now_playing_album_art_notify_manager.
+class NOVTABLE now_playing_album_art_notify {
+public:
+	//! Called when album art has finished loading for the now playing track.
+	//! @param data The newly loaded album art. Never a null object - the callbacks are simply not called when there is nothing to show.
+	virtual void on_album_art( album_art_data::ptr data ) = 0;
+};
+
+//! \since 1.4
+//! Since various components require the album art of the now-playing track, a centralized loader has been provided, so the file isn't hammered independently by different components. \n
+//! Use this in conjunction with play_callback notifications to render now-playing track information.
+class NOVTABLE now_playing_album_art_notify_manager : public service_base {
+	FB2K_MAKE_SERVICE_COREAPI(now_playing_album_art_notify_manager)
+public:
+	//! Register a notification to be told when the album art has been loaded.
+	virtual void add(now_playing_album_art_notify*) = 0;
+	//! Unregister a previously registered notification.
+	virtual void remove(now_playing_album_art_notify*) = 0;
+	//! Retrieves the album art for the currently playing track.
+	//! @returns The current album art (front cover), or null if there is no art or the art is being loaded and is not yet available.
+	virtual album_art_data::ptr current() = 0;
+
+	//! Helper; register a lambda notification. Pass the returned obejct to remove() to unregister.
+	now_playing_album_art_notify* add( std::function<void (album_art_data::ptr) > );
+};
+
+//! \since 1.6.6
+class NOVTABLE now_playing_album_art_notify_manager_v2 : public now_playing_album_art_notify_manager {
+	FB2K_MAKE_SERVICE_COREAPI_EXTENSION(now_playing_album_art_notify_manager_v2, now_playing_album_art_notify_manager);
+public:
+	struct info_t {
+		album_art_data::ptr data;
+		album_art_path_list::ptr paths;
+
+		static bool equals(const info_t& v1, const info_t& v2) {
+			return album_art_data::equals(v1.data, v2.data) && album_art_path_list::equals(v1.paths, v2.paths);
+		}
+		bool operator==(const info_t& other) const { return equals(*this, other); }
+		bool operator!=(const info_t& other) const { return !equals(*this, other); }
+
+		void clear() { *this = {}; }
+		bool is_valid() const { return data.is_valid(); }
+		operator bool() const { return is_valid(); }
+	};
+	virtual info_t current_v2() = 0;
+};