5 #include <movit/effect.h>
6 #include <movit/flat_input.h>
7 #include <movit/ycbcr_input.h>
13 #include <unordered_map>
16 #include "bmusb/bmusb.h"
18 #include "ref_counted_frame.h"
19 #include "tweaked_inputs.h"
24 class LiveInputWrapper;
34 // LIVE_INPUT_* also covers CEF and video inputs.
36 LIVE_INPUT_YCBCR_WITH_DEINTERLACE,
37 LIVE_INPUT_YCBCR_PLANAR,
43 AUTO_WHITE_BALANCE_EFFECT, // Same as WHITE_BALANCE_EFFECT, but sets its value automatically.
46 INTEGRAL_PADDING_EFFECT,
51 LIFT_GAMMA_GAIN_EFFECT,
56 // An EffectBlueprint refers to an Effect before it's being added to the graph.
57 // It contains enough information to instantiate the effect, including any
58 // parameters that were set before it was added to the graph. Once it is
59 // instantiated, it forwards its calls on to the real Effect instead.
60 struct EffectBlueprint {
61 EffectBlueprint(EffectType effect_type) : effect_type(effect_type) {}
63 EffectType effect_type;
64 std::map<std::string, int> int_parameters;
65 std::map<std::string, float> float_parameters;
66 std::map<std::string, std::array<float, 3>> vec3_parameters;
67 std::map<std::string, std::array<float, 4>> vec4_parameters;
69 movit::Effect *effect = nullptr; // Gets filled out when it's instantiated.
72 // Contains basically the same data as InputState, but does not hold on to
73 // a reference to the frames. This is important so that we can release them
74 // without having to wait for Lua's GC.
75 struct InputStateInfo {
76 explicit InputStateInfo(const InputState& input_state);
78 unsigned last_width[MAX_VIDEO_CARDS], last_height[MAX_VIDEO_CARDS];
79 bool last_interlaced[MAX_VIDEO_CARDS], last_has_signal[MAX_VIDEO_CARDS], last_is_connected[MAX_VIDEO_CARDS];
80 unsigned last_frame_rate_nom[MAX_VIDEO_CARDS], last_frame_rate_den[MAX_VIDEO_CARDS];
81 bool has_last_subtitle[MAX_VIDEO_CARDS];
82 std::string last_subtitle[MAX_VIDEO_CARDS];
87 Theme(const std::string &filename, const std::vector<std::string> &search_dirs, movit::ResourcePool *resource_pool, unsigned num_cards);
91 movit::EffectChain *chain;
92 std::function<void()> setup_chain;
94 // FRAME_HISTORY frames for each input, in order. Will contain duplicates
95 // for non-interlaced inputs.
96 std::vector<RefCountedFrame> input_frames;
99 Chain get_chain(unsigned num, float t, unsigned width, unsigned height, const InputState &input_state);
101 int get_num_channels() const { return num_channels; }
102 int map_signal_to_card(int signal_num);
103 void set_signal_mapping(int signal_num, int card_idx);
104 std::string get_channel_name(unsigned channel);
105 int map_channel_to_signal(unsigned channel);
106 bool get_supports_set_wb(unsigned channel);
107 void set_wb(unsigned channel, float r, float g, float b);
108 void set_wb_for_card(int card_idx, float r, float g, float b);
109 movit::RGBTriplet get_white_balance_for_card(int card_idx);
110 std::string get_channel_color(unsigned channel);
112 std::unordered_map<int, movit::RGBTriplet> white_balance_for_card;
114 std::vector<std::string> get_transition_names(float t);
116 void transition_clicked(int transition_num, float t);
117 void channel_clicked(int preview_num);
119 movit::ResourcePool *get_resource_pool() const { return resource_pool; }
121 // Should be called as part of VideoInput.new() only.
122 void register_video_input(FFmpegCapture *capture)
124 video_inputs.push_back(capture);
127 std::vector<FFmpegCapture *> get_video_inputs() const
133 // Should be called as part of HTMLInput.new() only.
134 void register_html_input(CEFCapture *capture)
136 html_inputs.push_back(capture);
139 std::vector<CEFCapture *> get_html_inputs() const
145 void register_video_signal_connection(movit::EffectChain *chain, LiveInputWrapper *live_input, FFmpegCapture *capture)
147 video_signal_connections[chain].emplace_back(VideoSignalConnection { live_input, capture });
151 void register_html_signal_connection(movit::EffectChain *chain, LiveInputWrapper *live_input, CEFCapture *capture)
153 html_signal_connections[chain].emplace_back(CEFSignalConnection { live_input, capture });
158 MenuEntry(const std::string &text, lua_State *L, int lua_ref, unsigned flags)
159 : text(text), is_submenu(false), entry{L, lua_ref, flags} {}
160 MenuEntry(const std::string &text, std::vector<std::unique_ptr<MenuEntry>> submenu)
161 : text(text), is_submenu(true), submenu(std::move(submenu)) {}
164 static constexpr unsigned CHECKABLE = 1;
165 static constexpr unsigned CHECKED = 2;
171 // is_submenu = false.
178 // is_submenu = true.
179 std::vector<std::unique_ptr<MenuEntry>> submenu;
182 MenuEntry *get_theme_menu() { return theme_menu.get(); } // Can be empty for no menu.
183 void theme_menu_entry_clicked(int lua_ref);
185 // Will be invoked every time the theme sets a new menu.
186 // Is not invoked for a menu that exists at the time of the callback.
187 void set_theme_menu_callback(std::function<void()> callback)
189 theme_menu_callback = callback;
192 std::string format_status_line(const std::string &disk_space_left_text, double file_length_seconds);
195 void register_globals();
196 void register_class(const char *class_name, const luaL_Reg *funcs, EffectType effect_type = NO_EFFECT_TYPE);
197 int set_theme_menu(lua_State *L);
198 Chain get_chain_from_effect_chain(movit::EffectChain *effect_chain, unsigned num, const InputState &input_state);
199 void call_lua_wb_callback(unsigned channel, float r, float g, float b);
201 std::string theme_path;
204 lua_State *L; // Protected by <m>.
205 const InputState *input_state = nullptr; // Protected by <m>. Only set temporarily, during chain setup.
206 movit::ResourcePool *resource_pool;
207 int num_channels = -1;
209 bool startup_finished = false;
212 std::map<int, int> signal_to_card_mapping; // Protected by <map_m>.
214 std::vector<FFmpegCapture *> video_inputs;
215 struct VideoSignalConnection {
216 LiveInputWrapper *wrapper;
217 FFmpegCapture *source;
219 std::unordered_map<movit::EffectChain *, std::vector<VideoSignalConnection>>
220 video_signal_connections;
222 std::vector<CEFCapture *> html_inputs;
223 struct CEFSignalConnection {
224 LiveInputWrapper *wrapper;
227 std::unordered_map<movit::EffectChain *, std::vector<CEFSignalConnection>>
228 html_signal_connections;
231 std::unique_ptr<MenuEntry> theme_menu;
232 std::function<void()> theme_menu_callback;
234 std::map<unsigned, std::string> channel_names; // Set using Nageru.set_channel_name(). Protected by <m>.
235 std::map<unsigned, int> channel_signals; // Set using Nageru.set_channel_signal(). Protected by <m>.
236 std::map<unsigned, bool> channel_supports_wb; // Set using Nageru.set_supports_wb(). Protected by <m>.
238 friend class LiveInputWrapper;
240 friend int ThemeMenu_set(lua_State *L);
241 friend int Nageru_set_channel_name(lua_State *L);
242 friend int Nageru_set_num_channels(lua_State *L);
243 friend int Nageru_set_channel_signal(lua_State *L);
244 friend int Nageru_set_supports_wb(lua_State *L);
247 // LiveInputWrapper is a facade on top of an YCbCrInput, exposed to
248 // the Lua code. It contains a function (connect_signal()) intended
249 // to be called during chain setup, that picks out the current frame
250 // (in the form of a set of textures) from the input state given by
251 // the mixer, and communicates that state over to the actual YCbCrInput.
252 class LiveInputWrapper {
254 // Note: <override_bounce> is irrelevant for PixelFormat_8BitBGRA.
255 LiveInputWrapper(Theme *theme, movit::EffectChain *chain, bmusb::PixelFormat pixel_format, bool override_bounce, bool deinterlace, bool user_connectable);
257 bool connect_signal(int signal_num); // Must be called with the theme's <m> lock held, since it accesses theme->input_state. Returns false on error.
258 void connect_card(int signal_num, const InputState &input_state);
259 movit::Effect *get_effect() const
262 return deinterlace_effect;
263 } else if (pixel_format == bmusb::PixelFormat_8BitBGRA) {
264 return rgba_inputs[0];
266 return ycbcr_inputs[0];
271 Theme *theme; // Not owned by us.
272 bmusb::PixelFormat pixel_format;
273 movit::YCbCrFormat input_ycbcr_format;
274 std::vector<movit::YCbCrInput *> ycbcr_inputs; // Multiple ones if deinterlacing. Owned by the chain.
275 std::vector<movit::FlatInput *> rgba_inputs; // Multiple ones if deinterlacing. Owned by the chain.
276 movit::Effect *deinterlace_effect = nullptr; // Owned by the chain.
278 bool user_connectable;
281 // Utility functions used by Scene.
282 void add_outputs_and_finalize(movit::EffectChain *chain, bool is_main_chain);
283 Theme *get_theme_updata(lua_State* L);
284 bool checkbool(lua_State* L, int idx);
285 std::string checkstdstring(lua_State *L, int index);
286 movit::Effect *instantiate_effect(movit::EffectChain *chain, EffectType effect_type);
287 void print_warning(lua_State* L, const char *format, ...);
289 #endif // !defined(_THEME_H)