-#include <stdio.h>
+#include "theme.h"
+
+#include <assert.h>
+#include <lauxlib.h>
#include <lua.h>
#include <lualib.h>
-#include <lauxlib.h>
-#include <new>
-#include <utility>
-
+#include <movit/effect.h>
#include <movit/effect_chain.h>
-#include <movit/ycbcr_input.h>
-#include <movit/white_balance_effect.h>
-#include <movit/resample_effect.h>
-#include <movit/padding_effect.h>
+#include <movit/image_format.h>
+#include <movit/mix_effect.h>
#include <movit/overlay_effect.h>
+#include <movit/padding_effect.h>
+#include <movit/resample_effect.h>
#include <movit/resize_effect.h>
-#include <movit/mix_effect.h>
+#include <movit/white_balance_effect.h>
+#include <movit/ycbcr.h>
+#include <movit/ycbcr_input.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <cstddef>
+#include <new>
+#include <utility>
+#include <memory>
-#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<LiveInputWrapper *> live_inputs;
+class LuaRefWithDeleter {
+public:
+ LuaRefWithDeleter(mutex *m, lua_State *L, int ref) : m(m), L(L), ref(ref) {}
+ ~LuaRefWithDeleter() {
+ unique_lock<mutex> 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<class T, class... Args>
int wrap_lua_object(lua_State* L, const char *class_name, Args&&... args)
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);
// 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<Effect *> inputs;
for (int idx = 3; idx <= lua_gettop(L); ++idx) {
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);
return 0;
}
+int ImageInput_new(lua_State* L)
+{
+ assert(lua_gettop(L) == 1);
+ std::string filename = checkstdstring(L, 1);
+ return wrap_lua_object<ImageInput>(L, "ImageInput", filename);
+}
+
int WhiteBalanceEffect_new(lua_State* L)
{
assert(lua_gettop(L) == 0);
return wrap_lua_object<MixEffect>(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;
}
{
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;
}
{
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;
{ 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 }
};
{ "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 }
};
{ "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 }
};
{ "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 }
};
{ "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 }
};
{ "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 }
};
{ "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)
{
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;
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) {
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);
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);
}
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<EffectChain *, function<void()>>
-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<mutex> 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<InputState>(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<LuaRefWithDeleter> 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<mutex> 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<mutex> 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<mutex> 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<mutex> 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<std::string> 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)
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)
fprintf(stderr, "error running function `channel_clicked': %s\n", lua_tostring(L, -1));
exit(1);
}
+ assert(lua_gettop(L) == 0);
}
projects / nageru / blobdiff