config.h

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#pragma once
 
// standard includes
#include <bitset>
#include <chrono>
#include <optional>
#include <string>
#include <unordered_map>
#include <vector>
 
// local includes
#include "nvenc/nvenc_config.h"
 
namespace config {
  // track modified config options
  inline std::unordered_map<std::string, std::string> modified_config_settings;
 
  struct video_t {
    // ffmpeg params
    int qp;  // higher == more compression and less quality
 
    int hevc_mode;
    int av1_mode;
 
    int min_threads;  // Minimum number of threads/slices for CPU encoding
 
    struct {
      std::string sw_preset;
      std::string sw_tune;
      std::optional<int> svtav1_preset;
    } sw;
 
    nvenc::nvenc_config nv;
    bool nv_realtime_hags;
    bool nv_opengl_vulkan_on_dxgi;
    bool nv_sunshine_high_power_mode;
 
    struct {
      int preset;
      int multipass;
      int h264_coder;
      int aq;
      int vbv_percentage_increase;
    } nv_legacy;
 
    struct {
      std::optional<int> qsv_preset;
      std::optional<int> qsv_cavlc;
      bool qsv_slow_hevc;
    } qsv;
 
    struct {
      std::optional<int> amd_usage_h264;
      std::optional<int> amd_usage_hevc;
      std::optional<int> amd_usage_av1;
      std::optional<int> amd_rc_h264;
      std::optional<int> amd_rc_hevc;
      std::optional<int> amd_rc_av1;
      std::optional<int> amd_enforce_hrd;
      std::optional<int> amd_quality_h264;
      std::optional<int> amd_quality_hevc;
      std::optional<int> amd_quality_av1;
      std::optional<int> amd_preanalysis;
      std::optional<int> amd_vbaq;
      int amd_coder;
    } amd;
 
    struct {
      int vt_allow_sw;
      int vt_require_sw;
      int vt_realtime;
      int vt_coder;
    } vt;
 
    struct {
      bool strict_rc_buffer;
    } vaapi;
 
    std::string capture;
    std::string encoder;
    std::string adapter_name;
    std::string output_name;
 
    struct dd_t {
      struct workarounds_t {
        std::chrono::milliseconds hdr_toggle_delay;  
      };
 
      enum class config_option_e {
        disabled,  
        verify_only,  
        ensure_active,  
        ensure_primary,  
        ensure_only_display  
      };
 
      enum class resolution_option_e {
        disabled,  
        automatic,  
        manual  
      };
 
      enum class refresh_rate_option_e {
        disabled,  
        automatic,  
        manual  
      };
 
      enum class hdr_option_e {
        disabled,  
        automatic  
      };
 
      struct mode_remapping_entry_t {
        std::string requested_resolution;
        std::string requested_fps;
        std::string final_resolution;
        std::string final_refresh_rate;
      };
 
      struct mode_remapping_t {
        std::vector<mode_remapping_entry_t> mixed;  
        std::vector<mode_remapping_entry_t> resolution_only;  
        std::vector<mode_remapping_entry_t> refresh_rate_only;  
      };
 
      config_option_e configuration_option;
      resolution_option_e resolution_option;
      std::string manual_resolution;  
      refresh_rate_option_e refresh_rate_option;
      std::string manual_refresh_rate;  
      hdr_option_e hdr_option;
      std::chrono::milliseconds config_revert_delay;  
      bool config_revert_on_disconnect;  
      mode_remapping_t mode_remapping;
      workarounds_t wa;
    } dd;
 
    int max_bitrate;  // Maximum bitrate, sets ceiling in kbps for bitrate requested from client
  };
 
  struct audio_t {
    std::string sink;
    std::string virtual_sink;
    bool stream;
    bool install_steam_drivers;
  };
 
  constexpr int ENCRYPTION_MODE_NEVER = 0;  // Never use video encryption, even if the client supports it
  constexpr int ENCRYPTION_MODE_OPPORTUNISTIC = 1;  // Use video encryption if available, but stream without it if not supported
  constexpr int ENCRYPTION_MODE_MANDATORY = 2;  // Always use video encryption and refuse clients that can't encrypt
 
  struct stream_t {
    std::chrono::milliseconds ping_timeout;
 
    std::string file_apps;
 
    int fec_percentage;
 
    // Video encryption settings for LAN and WAN streams
    int lan_encryption_mode;
    int wan_encryption_mode;
  };
 
  struct nvhttp_t {
    // Could be any of the following values:
    // pc|lan|wan
    std::string origin_web_ui_allowed;
 
    std::string pkey;
    std::string cert;
 
    std::string sunshine_name;
 
    std::string file_state;
 
    std::string external_ip;
  };
 
  struct input_t {
    std::unordered_map<int, int> keybindings;
 
    std::chrono::milliseconds back_button_timeout;
    std::chrono::milliseconds key_repeat_delay;
    std::chrono::duration<double> key_repeat_period;
 
    std::string gamepad;
    bool ds4_back_as_touchpad_click;
    bool motion_as_ds4;
    bool touchpad_as_ds4;
 
    bool keyboard;
    bool mouse;
    bool controller;
 
    bool always_send_scancodes;
 
    bool high_resolution_scrolling;
    bool native_pen_touch;
  };
 
  namespace flag {
    enum flag_e : std::size_t {
      PIN_STDIN = 0,  
      FRESH_STATE,  
      FORCE_VIDEO_HEADER_REPLACE,  
      UPNP,  
      CONST_PIN,  
      FLAG_SIZE  
    };
  }  // namespace flag
 
  struct prep_cmd_t {
    prep_cmd_t(std::string &&do_cmd, std::string &&undo_cmd, bool &&elevated):
        do_cmd(std::move(do_cmd)),
        undo_cmd(std::move(undo_cmd)),
        elevated(std::move(elevated)) {
    }
 
    explicit prep_cmd_t(std::string &&do_cmd, bool &&elevated):
        do_cmd(std::move(do_cmd)),
        elevated(std::move(elevated)) {
    }
 
    std::string do_cmd;
    std::string undo_cmd;
    bool elevated;
  };
 
  struct sunshine_t {
    std::string locale;
    int min_log_level;
    std::bitset<flag::FLAG_SIZE> flags;
    std::string credentials_file;
 
    std::string username;
    std::string password;
    std::string salt;
 
    std::string config_file;
 
    struct cmd_t {
      std::string name;
      int argc;
      char **argv;
    } cmd;
 
    std::uint16_t port;
    std::string address_family;
 
    std::string log_file;
    bool notify_pre_releases;
    std::vector<prep_cmd_t> prep_cmds;
  };
 
  extern video_t video;
  extern audio_t audio;
  extern stream_t stream;
  extern nvhttp_t nvhttp;
  extern input_t input;
  extern sunshine_t sunshine;
 
  int parse(int argc, char *argv[]);
  std::unordered_map<std::string, std::string> parse_config(const std::string_view &file_content);
}  // namespace config