X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=theme.cpp;h=aed350f0973ac50b81307f99b128797d448351d0;hb=f35c59e57e973cd2fc7a02aac0413cf00c934d80;hp=4843b0cd3fff65519d2eaea3243c9eb69dd64271;hpb=9c824f7164eeecaa1aa904d69c5bb64fb3a6a27b;p=nageru diff --git a/theme.cpp b/theme.cpp index 4843b0c..aed350f 100644 --- a/theme.cpp +++ b/theme.cpp @@ -1,30 +1,58 @@ -#include +#include "theme.h" + +#include +#include #include #include -#include -#include -#include - +#include #include -#include -#include -#include -#include +#include +#include #include +#include +#include #include -#include +#include +#include +#include +#include +#include +#include +#include +#include +#include -#include "theme.h" +#include "defs.h" +#include "image_input.h" +#include "mixer.h" -#define WIDTH 1280 // FIXME -#define HEIGHT 720 // FIXME +namespace movit { +class ResourcePool; +} // namespace movit using namespace std; using namespace movit; +extern Mixer *global_mixer; + namespace { -vector live_inputs; +class LuaRefWithDeleter { +public: + LuaRefWithDeleter(mutex *m, lua_State *L, int ref) : m(m), L(L), ref(ref) {} + ~LuaRefWithDeleter() { + unique_lock lock(*m); + luaL_unref(L, LUA_REGISTRYINDEX, ref); + } + int get() const { return ref; } + +private: + LuaRefWithDeleter(const LuaRefWithDeleter &) = delete; + + mutex *m; + lua_State *L; + int ref; +}; template int wrap_lua_object(lua_State* L, const char *class_name, Args&&... args) @@ -54,19 +82,36 @@ Effect *get_effect(lua_State *L, int idx) luaL_testudata(L, idx, "IntegralPaddingEffect") || luaL_testudata(L, idx, "OverlayEffect") || luaL_testudata(L, idx, "ResizeEffect") || - luaL_testudata(L, idx, "MixEffect")) { + luaL_testudata(L, idx, "MixEffect") || + luaL_testudata(L, idx, "ImageInput")) { return (Effect *)lua_touserdata(L, idx); } luaL_error(L, "Error: Index #%d was not an Effect type\n", idx); return nullptr; } +InputState *get_input_state(lua_State *L, int idx) +{ + if (luaL_testudata(L, idx, "InputState")) { + return (InputState *)lua_touserdata(L, idx); + } + luaL_error(L, "Error: Index #%d was not InputState\n", idx); + return nullptr; +} + bool checkbool(lua_State* L, int idx) { luaL_checktype(L, idx, LUA_TBOOLEAN); return lua_toboolean(L, idx); } +std::string checkstdstring(lua_State *L, int index) +{ + size_t len; + const char* cstr = lua_tolstring(L, index, &len); + return std::string(cstr, len); +} + int EffectChain_new(lua_State* L) { assert(lua_gettop(L) == 2); @@ -93,7 +138,11 @@ int EffectChain_add_effect(lua_State* L) // TODO: Better error reporting. Effect *effect = get_effect(L, 2); if (lua_gettop(L) == 2) { - chain->add_effect(effect); + if (effect->num_inputs() == 0) { + chain->add_input((Input *)effect); + } else { + chain->add_effect(effect); + } } else { vector inputs; for (int idx = 3; idx <= lua_gettop(L); ++idx) { @@ -123,15 +172,33 @@ int EffectChain_finalize(lua_State* L) bool is_main_chain = checkbool(L, 2); // Add outputs as needed. + // NOTE: If you change any details about the output format, you will need to + // also update what's given to the muxer (HTTPD::Mux constructor) and + // what's put in the H.264 stream (sps_rbsp()). ImageFormat inout_format; - inout_format.color_space = COLORSPACE_sRGB; + inout_format.color_space = COLORSPACE_REC_709; + + // Output gamma is tricky. We should output Rec. 709 for TV, except that + // we expect to run with web players and others that don't really care and + // just output with no conversion. So that means we'll need to output sRGB, + // even though H.264 has no setting for that (we use “unspecified”). inout_format.gamma_curve = GAMMA_sRGB; + if (is_main_chain) { YCbCrFormat output_ycbcr_format; + // We actually output 4:2:0 in the end, but chroma subsampling + // happens in a pass not run by Movit (see Mixer::subsample_chroma()). output_ycbcr_format.chroma_subsampling_x = 1; output_ycbcr_format.chroma_subsampling_y = 1; - output_ycbcr_format.luma_coefficients = YCBCR_REC_709; + + // Rec. 709 would be the sane thing to do, but it seems many players + // (e.g. MPlayer and VLC) just default to BT.601 coefficients no matter + // what (see discussions in e.g. https://trac.ffmpeg.org/ticket/4978). + // We _do_ set the right flags, though, so that a player that works + // properly doesn't have to guess. + output_ycbcr_format.luma_coefficients = YCBCR_REC_601; output_ycbcr_format.full_range = false; + output_ycbcr_format.num_levels = 256; chain->add_ycbcr_output(inout_format, OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED, output_ycbcr_format, YCBCR_OUTPUT_SPLIT_Y_AND_CBCR); chain->set_dither_bits(8); @@ -152,6 +219,13 @@ int LiveInputWrapper_connect_signal(lua_State* L) return 0; } +int ImageInput_new(lua_State* L) +{ + assert(lua_gettop(L) == 1); + std::string filename = checkstdstring(L, 1); + return wrap_lua_object(L, "ImageInput", filename); +} + int WhiteBalanceEffect_new(lua_State* L) { assert(lua_gettop(L) == 0); @@ -194,16 +268,44 @@ int MixEffect_new(lua_State* L) return wrap_lua_object(L, "MixEffect"); } +int InputState_gc(lua_State* L) +{ + assert(lua_gettop(L) == 1); + InputState *input_state = get_input_state(L, 1); + input_state->~InputState(); + return 0; +} + +int InputState_get_width(lua_State* L) +{ + assert(lua_gettop(L) == 2); + InputState *input_state = (InputState *)lua_touserdata(L, 1); + int signal_num = luaL_checknumber(L, 2); + BufferedFrame frame = input_state->buffered_frames[signal_num][0]; + const PBOFrameAllocator::Userdata *userdata = (const PBOFrameAllocator::Userdata *)frame.frame->userdata; + lua_pushnumber(L, userdata->last_width[frame.field_number]); + return 1; +} + +int InputState_get_height(lua_State* L) +{ + assert(lua_gettop(L) == 2); + InputState *input_state = (InputState *)lua_touserdata(L, 1); + int signal_num = luaL_checknumber(L, 2); + BufferedFrame frame = input_state->buffered_frames[signal_num][0]; + const PBOFrameAllocator::Userdata *userdata = (const PBOFrameAllocator::Userdata *)frame.frame->userdata; + lua_pushnumber(L, userdata->last_height[frame.field_number]); + return 1; +} + int Effect_set_float(lua_State *L) { assert(lua_gettop(L) == 3); Effect *effect = (Effect *)get_effect(L, 1); - size_t len; - const char* cstr = lua_tolstring(L, 2, &len); - std::string key(cstr, len); + std::string key = checkstdstring(L, 2); float value = luaL_checknumber(L, 3); if (!effect->set_float(key, value)) { - luaL_error(L, "Effect refused set_float(\"%s\", %d) (invalid key?)", cstr, int(value)); + luaL_error(L, "Effect refused set_float(\"%s\", %d) (invalid key?)", key.c_str(), int(value)); } return 0; } @@ -212,12 +314,26 @@ int Effect_set_int(lua_State *L) { assert(lua_gettop(L) == 3); Effect *effect = (Effect *)get_effect(L, 1); - size_t len; - const char* cstr = lua_tolstring(L, 2, &len); - std::string key(cstr, len); + std::string key = checkstdstring(L, 2); float value = luaL_checknumber(L, 3); if (!effect->set_int(key, value)) { - luaL_error(L, "Effect refused set_int(\"%s\", %d) (invalid key?)", cstr, int(value)); + luaL_error(L, "Effect refused set_int(\"%s\", %d) (invalid key?)", key.c_str(), int(value)); + } + return 0; +} + +int Effect_set_vec3(lua_State *L) +{ + assert(lua_gettop(L) == 5); + Effect *effect = (Effect *)get_effect(L, 1); + std::string key = checkstdstring(L, 2); + float v[3]; + v[0] = luaL_checknumber(L, 3); + v[1] = luaL_checknumber(L, 4); + v[2] = luaL_checknumber(L, 5); + if (!effect->set_vec3(key, v)) { + luaL_error(L, "Effect refused set_vec3(\"%s\", %f, %f, %f) (invalid key?)", key.c_str(), + v[0], v[1], v[2]); } return 0; } @@ -226,16 +342,14 @@ int Effect_set_vec4(lua_State *L) { assert(lua_gettop(L) == 6); Effect *effect = (Effect *)get_effect(L, 1); - size_t len; - const char* cstr = lua_tolstring(L, 2, &len); - std::string key(cstr, len); + std::string key = checkstdstring(L, 2); float v[4]; v[0] = luaL_checknumber(L, 3); v[1] = luaL_checknumber(L, 4); v[2] = luaL_checknumber(L, 5); v[3] = luaL_checknumber(L, 6); if (!effect->set_vec4(key, v)) { - luaL_error(L, "Effect refused set_vec4(\"%s\", %f, %f, %f, %f) (invalid key?)", cstr, + luaL_error(L, "Effect refused set_vec4(\"%s\", %f, %f, %f, %f) (invalid key?)", key.c_str(), v[0], v[1], v[2], v[3]); } return 0; @@ -254,10 +368,20 @@ const luaL_Reg LiveInputWrapper_funcs[] = { { NULL, NULL } }; +const luaL_Reg ImageInput_funcs[] = { + { "new", ImageInput_new }, + { "set_float", Effect_set_float }, + { "set_int", Effect_set_int }, + { "set_vec3", Effect_set_vec3 }, + { "set_vec4", Effect_set_vec4 }, + { NULL, NULL } +}; + const luaL_Reg WhiteBalanceEffect_funcs[] = { { "new", WhiteBalanceEffect_new }, { "set_float", Effect_set_float }, { "set_int", Effect_set_int }, + { "set_vec3", Effect_set_vec3 }, { "set_vec4", Effect_set_vec4 }, { NULL, NULL } }; @@ -266,6 +390,7 @@ const luaL_Reg ResampleEffect_funcs[] = { { "new", ResampleEffect_new }, { "set_float", Effect_set_float }, { "set_int", Effect_set_int }, + { "set_vec3", Effect_set_vec3 }, { "set_vec4", Effect_set_vec4 }, { NULL, NULL } }; @@ -274,6 +399,7 @@ const luaL_Reg PaddingEffect_funcs[] = { { "new", PaddingEffect_new }, { "set_float", Effect_set_float }, { "set_int", Effect_set_int }, + { "set_vec3", Effect_set_vec3 }, { "set_vec4", Effect_set_vec4 }, { NULL, NULL } }; @@ -282,6 +408,7 @@ const luaL_Reg IntegralPaddingEffect_funcs[] = { { "new", IntegralPaddingEffect_new }, { "set_float", Effect_set_float }, { "set_int", Effect_set_int }, + { "set_vec3", Effect_set_vec3 }, { "set_vec4", Effect_set_vec4 }, { NULL, NULL } }; @@ -290,6 +417,7 @@ const luaL_Reg OverlayEffect_funcs[] = { { "new", OverlayEffect_new }, { "set_float", Effect_set_float }, { "set_int", Effect_set_int }, + { "set_vec3", Effect_set_vec3 }, { "set_vec4", Effect_set_vec4 }, { NULL, NULL } }; @@ -298,6 +426,7 @@ const luaL_Reg ResizeEffect_funcs[] = { { "new", ResizeEffect_new }, { "set_float", Effect_set_float }, { "set_int", Effect_set_int }, + { "set_vec3", Effect_set_vec3 }, { "set_vec4", Effect_set_vec4 }, { NULL, NULL } }; @@ -306,10 +435,18 @@ const luaL_Reg MixEffect_funcs[] = { { "new", MixEffect_new }, { "set_float", Effect_set_float }, { "set_int", Effect_set_int }, + { "set_vec3", Effect_set_vec3 }, { "set_vec4", Effect_set_vec4 }, { NULL, NULL } }; +const luaL_Reg InputState_funcs[] = { + { "__gc", InputState_gc }, + { "get_width", InputState_get_width }, + { "get_height", InputState_get_height }, + { NULL, NULL } +}; + } // namespace LiveInputWrapper::LiveInputWrapper(Theme *theme, EffectChain *chain, bool override_bounce) @@ -317,8 +454,20 @@ LiveInputWrapper::LiveInputWrapper(Theme *theme, EffectChain *chain, bool overri { ImageFormat inout_format; inout_format.color_space = COLORSPACE_sRGB; + + // Gamma curve depends on the input signal, and we don't really get any + // indications. A camera would be expected to do Rec. 709, but + // I haven't checked if any do in practice. However, computers _do_ output + // in sRGB gamma (ie., they don't convert from sRGB to Rec. 709), and + // I wouldn't really be surprised if most non-professional cameras do, too. + // So we pick sRGB as the least evil here. inout_format.gamma_curve = GAMMA_sRGB; + // The Blackmagic driver docs claim that the device outputs Y'CbCr + // according to Rec. 601, but practical testing indicates it definitely + // is Rec. 709 (at least up to errors attributable to rounding errors). + // Perhaps 601 was only to indicate the subsampling positions, not the + // colorspace itself? Tested with a Lenovo X1 gen 3 as input. YCbCrFormat input_ycbcr_format; input_ycbcr_format.chroma_subsampling_x = 2; input_ycbcr_format.chroma_subsampling_y = 1; @@ -326,7 +475,7 @@ LiveInputWrapper::LiveInputWrapper(Theme *theme, EffectChain *chain, bool overri input_ycbcr_format.cr_x_position = 0.0; input_ycbcr_format.cb_y_position = 0.5; input_ycbcr_format.cr_y_position = 0.5; - input_ycbcr_format.luma_coefficients = YCBCR_REC_601; + input_ycbcr_format.luma_coefficients = YCBCR_REC_709; input_ycbcr_format.full_range = false; if (override_bounce) { @@ -339,17 +488,31 @@ LiveInputWrapper::LiveInputWrapper(Theme *theme, EffectChain *chain, bool overri void LiveInputWrapper::connect_signal(int signal_num) { - theme->connect_signal(input, signal_num); + if (global_mixer == nullptr) { + // No data yet. + return; + } + + signal_num = theme->map_signal(signal_num); + + BufferedFrame frame = theme->input_state->buffered_frames[signal_num][0]; + const PBOFrameAllocator::Userdata *userdata = (const PBOFrameAllocator::Userdata *)frame.frame->userdata; + + input->set_texture_num(0, userdata->tex_y[frame.field_number]); + input->set_texture_num(1, userdata->tex_cbcr[frame.field_number]); + input->set_width(userdata->last_width[frame.field_number]); + input->set_height(userdata->last_height[frame.field_number]); } -Theme::Theme(const char *filename, ResourcePool *resource_pool) - : resource_pool(resource_pool) +Theme::Theme(const char *filename, ResourcePool *resource_pool, unsigned num_cards) + : resource_pool(resource_pool), num_cards(num_cards) { L = luaL_newstate(); luaL_openlibs(L); register_class("EffectChain", EffectChain_funcs); register_class("LiveInputWrapper", LiveInputWrapper_funcs); + register_class("ImageInput", ImageInput_funcs); register_class("WhiteBalanceEffect", WhiteBalanceEffect_funcs); register_class("ResampleEffect", ResampleEffect_funcs); register_class("PaddingEffect", PaddingEffect_funcs); @@ -357,6 +520,7 @@ Theme::Theme(const char *filename, ResourcePool *resource_pool) register_class("OverlayEffect", OverlayEffect_funcs); register_class("ResizeEffect", ResizeEffect_funcs); register_class("MixEffect", MixEffect_funcs); + register_class("InputState", InputState_funcs); // Run script. lua_settop(L, 0); @@ -376,51 +540,121 @@ Theme::Theme(const char *filename, ResourcePool *resource_pool) } num_channels = luaL_checknumber(L, 1); + lua_pop(L, 1); + assert(lua_gettop(L) == 0); } void Theme::register_class(const char *class_name, const luaL_Reg *funcs) { - luaL_newmetatable(L, class_name); + assert(lua_gettop(L) == 0); + luaL_newmetatable(L, class_name); // mt = {} lua_pushlightuserdata(L, this); - luaL_setfuncs(L, funcs, 1); + luaL_setfuncs(L, funcs, 1); // for (name,f in funcs) { mt[name] = f, with upvalue {theme} } lua_pushvalue(L, -1); - lua_setfield(L, -2, "__index"); - lua_setglobal(L, class_name); + lua_setfield(L, -2, "__index"); // mt.__index = mt + lua_setglobal(L, class_name); // ClassName = mt + assert(lua_gettop(L) == 0); } -pair> -Theme::get_chain(unsigned num, float t, unsigned width, unsigned height) +Theme::Chain Theme::get_chain(unsigned num, float t, unsigned width, unsigned height, InputState input_state) { + Chain chain; + unique_lock lock(m); + assert(lua_gettop(L) == 0); lua_getglobal(L, "get_chain"); /* function to be called */ lua_pushnumber(L, num); lua_pushnumber(L, t); lua_pushnumber(L, width); lua_pushnumber(L, height); + wrap_lua_object(L, "InputState", input_state); - if (lua_pcall(L, 4, 2, 0) != 0) { + if (lua_pcall(L, 5, 2, 0) != 0) { fprintf(stderr, "error running function `get_chain': %s\n", lua_tostring(L, -1)); exit(1); } - EffectChain *chain = (EffectChain *)luaL_checkudata(L, -2, "EffectChain"); + chain.chain = (EffectChain *)luaL_checkudata(L, -2, "EffectChain"); if (!lua_isfunction(L, -1)) { fprintf(stderr, "Argument #-1 should be a function\n"); exit(1); } lua_pushvalue(L, -1); - int funcref = luaL_ref(L, LUA_REGISTRYINDEX); // TODO: leak! + shared_ptr funcref(new LuaRefWithDeleter(&m, L, luaL_ref(L, LUA_REGISTRYINDEX))); lua_pop(L, 2); - return make_pair(chain, [this, funcref]{ + assert(lua_gettop(L) == 0); + + chain.setup_chain = [this, funcref, input_state]{ unique_lock lock(m); + this->input_state = &input_state; + // Set up state, including connecting signals. - lua_rawgeti(L, LUA_REGISTRYINDEX, funcref); + lua_rawgeti(L, LUA_REGISTRYINDEX, funcref->get()); if (lua_pcall(L, 0, 0, 0) != 0) { fprintf(stderr, "error running chain setup callback: %s\n", lua_tostring(L, -1)); exit(1); } - }); + assert(lua_gettop(L) == 0); + }; + + // TODO: Can we do better, e.g. by running setup_chain() and seeing what it references? + // Actually, setup_chain does maybe hold all the references we need now anyway? + for (unsigned card_index = 0; card_index < num_cards; ++card_index) { + for (unsigned frame_num = 0; frame_num < FRAME_HISTORY_LENGTH; ++frame_num) { + chain.input_frames.push_back(input_state.buffered_frames[card_index][frame_num].frame); + } + } + + return chain; +} + +std::string Theme::get_channel_name(unsigned channel) +{ + unique_lock lock(m); + lua_getglobal(L, "channel_name"); + lua_pushnumber(L, channel); + if (lua_pcall(L, 1, 1, 0) != 0) { + fprintf(stderr, "error running function `channel_nam': %s\n", lua_tostring(L, -1)); + exit(1); + } + + std::string ret = lua_tostring(L, -1); + lua_pop(L, 1); + assert(lua_gettop(L) == 0); + return ret; +} + +bool Theme::get_supports_set_wb(unsigned channel) +{ + unique_lock lock(m); + lua_getglobal(L, "supports_set_wb"); + lua_pushnumber(L, channel); + if (lua_pcall(L, 1, 1, 0) != 0) { + fprintf(stderr, "error running function `supports_set_wb': %s\n", lua_tostring(L, -1)); + exit(1); + } + + bool ret = checkbool(L, -1); + lua_pop(L, 1); + assert(lua_gettop(L) == 0); + return ret; +} + +void Theme::set_wb(unsigned channel, double r, double g, double b) +{ + unique_lock lock(m); + lua_getglobal(L, "set_wb"); + lua_pushnumber(L, channel); + lua_pushnumber(L, r); + lua_pushnumber(L, g); + lua_pushnumber(L, b); + if (lua_pcall(L, 4, 0, 0) != 0) { + fprintf(stderr, "error running function `set_wb': %s\n", lua_tostring(L, -1)); + exit(1); + } + + assert(lua_gettop(L) == 0); } std::vector Theme::get_transition_names(float t) @@ -439,13 +673,21 @@ std::vector Theme::get_transition_names(float t) ret.push_back(lua_tostring(L, -1)); lua_pop(L, 1); } + lua_pop(L, 1); + assert(lua_gettop(L) == 0); return ret; } -void Theme::connect_signal(YCbCrInput *input, int signal_num) +int Theme::map_signal(int signal_num) { - input->set_texture_num(0, input_textures[signal_num].tex_y); - input->set_texture_num(1, input_textures[signal_num].tex_cbcr); + if (signal_num >= int(num_cards)) { + if (signals_warned_about.insert(signal_num).second) { + fprintf(stderr, "WARNING: Theme asked for input %d, but we only have %u card(s).\n", signal_num, num_cards); + fprintf(stderr, "Mapping to card %d instead.\n", signal_num % num_cards); + } + signal_num %= num_cards; + } + return signal_num; } void Theme::transition_clicked(int transition_num, float t) @@ -459,6 +701,7 @@ void Theme::transition_clicked(int transition_num, float t) fprintf(stderr, "error running function `transition_clicked': %s\n", lua_tostring(L, -1)); exit(1); } + assert(lua_gettop(L) == 0); } void Theme::channel_clicked(int preview_num) @@ -471,4 +714,5 @@ void Theme::channel_clicked(int preview_num) fprintf(stderr, "error running function `channel_clicked': %s\n", lua_tostring(L, -1)); exit(1); } + assert(lua_gettop(L) == 0); }