5 #include <movit/effect.h>
6 #include <movit/flat_input.h>
7 #include <movit/ycbcr_input.h>
14 #include <unordered_map>
18 #include "bmusb/bmusb.h"
19 #include "ref_counted_frame.h"
20 #include "shared/shared_defs.h"
21 #include "tweaked_inputs.h"
26 class LiveInputWrapper;
36 // LIVE_INPUT_* also covers CEF and video inputs.
38 LIVE_INPUT_YCBCR_WITH_DEINTERLACE,
39 LIVE_INPUT_YCBCR_PLANAR,
45 AUTO_WHITE_BALANCE_EFFECT, // Same as WHITE_BALANCE_EFFECT, but sets its value automatically.
48 INTEGRAL_PADDING_EFFECT,
53 LIFT_GAMMA_GAIN_EFFECT,
60 // An EffectBlueprint refers to an Effect before it's being added to the graph.
61 // It contains enough information to instantiate the effect, including any
62 // parameters that were set before it was added to the graph. Once it is
63 // instantiated, it forwards its calls on to the real Effect instead.
64 struct EffectBlueprint {
65 EffectBlueprint(EffectType effect_type) : effect_type(effect_type) {}
67 EffectType effect_type;
68 std::map<std::string, int> int_parameters;
69 std::map<std::string, float> float_parameters;
70 std::map<std::string, std::array<float, 3>> vec3_parameters;
71 std::map<std::string, std::array<float, 4>> vec4_parameters;
73 movit::Effect *effect = nullptr; // Gets filled out when it's instantiated.
76 // Contains basically the same data as InputState, but does not hold on to
77 // a reference to the frames. This is important so that we can release them
78 // without having to wait for Lua's GC.
79 struct InputStateInfo {
80 explicit InputStateInfo(const InputState& input_state);
82 unsigned last_width[MAX_VIDEO_CARDS], last_height[MAX_VIDEO_CARDS];
83 bool last_interlaced[MAX_VIDEO_CARDS], last_has_signal[MAX_VIDEO_CARDS], last_is_connected[MAX_VIDEO_CARDS];
84 unsigned last_frame_rate_nom[MAX_VIDEO_CARDS], last_frame_rate_den[MAX_VIDEO_CARDS];
85 bmusb::PixelFormat last_pixel_format[MAX_VIDEO_CARDS];
86 bool has_last_subtitle[MAX_VIDEO_CARDS];
87 std::string last_subtitle[MAX_VIDEO_CARDS];
92 Theme(const std::string &filename, const std::vector<std::string> &search_dirs, movit::ResourcePool *resource_pool);
96 movit::EffectChain *chain;
97 std::function<void()> setup_chain;
99 // FRAME_HISTORY frames for each input, in order. Will contain duplicates
100 // for non-interlaced inputs.
101 std::vector<RefCountedFrame> input_frames;
104 Chain get_chain(unsigned num, float t, unsigned width, unsigned height, const InputState &input_state);
106 int get_num_channels() const { return num_channels; }
107 int map_signal_to_card(int signal_num);
108 void set_signal_mapping(int signal_num, int card_idx);
109 std::string get_channel_name(unsigned channel);
110 int map_channel_to_signal(unsigned channel);
111 bool get_supports_set_wb(unsigned channel);
112 void set_wb(unsigned channel, float r, float g, float b);
113 void set_wb_for_card(int card_idx, float r, float g, float b);
114 movit::RGBTriplet get_white_balance_for_card(int card_idx);
115 std::string get_channel_color(unsigned channel);
117 std::unordered_map<int, movit::RGBTriplet> white_balance_for_card;
119 std::vector<std::string> get_transition_names(float t);
121 void transition_clicked(int transition_num, float t);
122 void channel_clicked(int preview_num);
124 movit::ResourcePool *get_resource_pool() const { return resource_pool; }
126 // Should be called as part of VideoInput.new() only.
127 void register_video_input(FFmpegCapture *capture)
129 video_inputs.push_back(capture);
132 std::vector<FFmpegCapture *> get_video_inputs() const
138 // Should be called as part of HTMLInput.new() only.
139 void register_html_input(CEFCapture *capture)
141 html_inputs.push_back(capture);
144 std::vector<CEFCapture *> get_html_inputs() const
150 void register_video_signal_connection(movit::EffectChain *chain, LiveInputWrapper *live_input, FFmpegCapture *capture)
152 video_signal_connections[chain].emplace_back(VideoSignalConnection { live_input, capture });
156 void register_html_signal_connection(movit::EffectChain *chain, LiveInputWrapper *live_input, CEFCapture *capture)
158 html_signal_connections[chain].emplace_back(CEFSignalConnection { live_input, capture });
163 MenuEntry(const std::string &text, lua_State *L, int lua_ref, unsigned flags)
164 : text(text), is_submenu(false), entry{L, lua_ref, flags} {}
165 MenuEntry(const std::string &text, std::vector<std::unique_ptr<MenuEntry>> submenu)
166 : text(text), is_submenu(true), submenu(std::move(submenu)) {}
169 static constexpr unsigned CHECKABLE = 1;
170 static constexpr unsigned CHECKED = 2;
176 // is_submenu = false.
183 // is_submenu = true.
184 std::vector<std::unique_ptr<MenuEntry>> submenu;
187 MenuEntry *get_theme_menu() { return theme_menu.get(); } // Can be empty for no menu.
188 void theme_menu_entry_clicked(int lua_ref);
190 // Will be invoked every time the theme sets a new menu.
191 // Is not invoked for a menu that exists at the time of the callback.
192 void set_theme_menu_callback(std::function<void()> callback)
194 theme_menu_callback = callback;
197 std::string format_status_line(const std::string &disk_space_left_text, double file_length_seconds);
199 // Signal that the given card is going away and will not be replaced
200 // with a fake capture card, so remove all connections to it so that
201 // they don't automatically come back on the next frame.
202 void remove_card(unsigned card_index);
205 void register_globals();
206 void register_class(const char *class_name, const luaL_Reg *funcs, EffectType effect_type = NO_EFFECT_TYPE);
207 int set_theme_menu(lua_State *L);
208 Chain get_chain_from_effect_chain(movit::EffectChain *effect_chain, unsigned num, const InputState &input_state);
209 void call_lua_wb_callback(unsigned channel, float r, float g, float b);
211 std::string theme_path;
214 lua_State *L; // Protected by <m>.
215 const InputState *input_state = nullptr; // Protected by <m>. Only set temporarily, during chain setup.
216 movit::ResourcePool *resource_pool;
217 int num_channels = -1;
218 bool startup_finished = false;
221 std::map<int, int> signal_to_card_mapping; // Protected by <map_m>.
223 std::vector<FFmpegCapture *> video_inputs;
224 struct VideoSignalConnection {
225 LiveInputWrapper *wrapper;
226 FFmpegCapture *source;
228 std::unordered_map<movit::EffectChain *, std::vector<VideoSignalConnection>>
229 video_signal_connections;
231 std::vector<CEFCapture *> html_inputs;
232 struct CEFSignalConnection {
233 LiveInputWrapper *wrapper;
236 std::unordered_map<movit::EffectChain *, std::vector<CEFSignalConnection>>
237 html_signal_connections;
240 std::unique_ptr<MenuEntry> theme_menu;
241 std::function<void()> theme_menu_callback;
243 std::map<unsigned, std::string> channel_names; // Set using Nageru.set_channel_name(). Protected by <m>.
244 std::map<unsigned, int> channel_signals; // Set using Nageru.set_channel_signal(). Protected by <m>.
245 std::map<unsigned, bool> channel_supports_wb; // Set using Nageru.set_supports_wb(). Protected by <m>.
247 friend class LiveInputWrapper;
249 friend int ThemeMenu_set(lua_State *L);
250 friend int Nageru_set_channel_name(lua_State *L);
251 friend int Nageru_set_num_channels(lua_State *L);
252 friend int Nageru_set_channel_signal(lua_State *L);
253 friend int Nageru_set_supports_wb(lua_State *L);
256 // LiveInputWrapper is a facade on top of an YCbCrInput, exposed to
257 // the Lua code. It contains a function (connect_signal()) intended
258 // to be called during chain setup, that picks out the current frame
259 // (in the form of a set of textures) from the input state given by
260 // the mixer, and communicates that state over to the actual YCbCrInput.
261 class LiveInputWrapper {
263 // Note: <override_bounce> is irrelevant for PixelFormat_8BitBGRA.
264 LiveInputWrapper(Theme *theme, movit::EffectChain *chain, bmusb::PixelFormat pixel_format, bool override_bounce, bool deinterlace, bool user_connectable);
266 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.
267 void connect_card(int signal_num, const InputState &input_state);
268 movit::Effect *get_effect() const
271 return deinterlace_effect;
272 } else if (pixel_format == bmusb::PixelFormat_8BitBGRA) {
273 return rgba_inputs[0];
275 return ycbcr_inputs[0];
280 Theme *theme; // Not owned by us.
281 bmusb::PixelFormat pixel_format;
282 movit::YCbCrFormat input_ycbcr_format;
283 std::vector<movit::YCbCrInput *> ycbcr_inputs; // Multiple ones if deinterlacing. Owned by the chain.
284 std::vector<movit::FlatInput *> rgba_inputs; // Multiple ones if deinterlacing. Owned by the chain.
285 movit::Effect *deinterlace_effect = nullptr; // Owned by the chain.
287 bool user_connectable;
290 // Utility functions used by Scene.
291 void add_outputs_and_finalize(movit::EffectChain *chain, bool is_main_chain);
292 Theme *get_theme_updata(lua_State* L);
293 bool checkbool(lua_State* L, int idx);
294 std::string checkstdstring(lua_State *L, int index);
295 movit::Effect *instantiate_effect(movit::EffectChain *chain, EffectType effect_type);
296 void print_warning(lua_State* L, const char *format, ...);
298 #endif // !defined(_THEME_H)