Copy Config from gpu-screen-recorder-gtk, make it more modern and efficient with string_view and variant, use string_view in gsr info parsing

include/Config.hpp

@@ -0,0 +1,81 @@
+
+#pragma once
+
+#include "Utils.hpp"
+#include <stdint.h>
+
+namespace gsr {
+    struct ConfigHotkey {
+        int64_t keysym = 0;
+        uint32_t modifiers = 0;
+    };
+
+    struct MainConfig {
+        std::string record_area_option;
+        int32_t record_area_width = 0;
+        int32_t record_area_height = 0;
+        int32_t fps = 60;
+        bool merge_audio_tracks = true;
+        std::vector<std::string> audio_input;
+        std::string color_range;
+        std::string quality;
+        std::string video_codec;
+        std::string audio_codec;
+        std::string framerate_mode;
+        bool advanced_view = false;
+        bool overclock = false;
+        bool show_recording_started_notifications = false;
+        bool show_recording_stopped_notifications = false;
+        bool show_recording_saved_notifications = true;
+        bool record_cursor = true;
+        bool hide_window_when_recording = false;
+        bool software_encoding_warning_shown = false;
+        bool restore_portal_session = true;
+    };
+
+    struct YoutubeStreamConfig {
+        std::string stream_key;
+    };
+
+    struct TwitchStreamConfig {
+        std::string stream_key;
+    };
+
+    struct CustomStreamConfig {
+        std::string url;
+        std::string container;
+    };
+
+    struct StreamingConfig {
+        std::string streaming_service;
+        YoutubeStreamConfig youtube;
+        TwitchStreamConfig twitch;
+        CustomStreamConfig custom;
+        ConfigHotkey start_stop_recording_hotkey;
+    };
+
+    struct RecordConfig {
+        std::string save_directory;
+        std::string container;
+        ConfigHotkey start_stop_recording_hotkey;
+        ConfigHotkey pause_unpause_recording_hotkey;
+    };
+
+    struct ReplayConfig {
+        std::string save_directory;
+        std::string container;
+        int32_t replay_time = 30;
+        ConfigHotkey start_stop_recording_hotkey;
+        ConfigHotkey save_recording_hotkey;
+    };
+
+    struct Config {
+        MainConfig main_config;
+        StreamingConfig streaming_config;
+        RecordConfig record_config;
+        ReplayConfig replay_config;
+    };
+
+    Config read_config(bool &config_empty);
+    void save_config(Config &config);
+}