-#include <stdio.h>
-#include <lua.h>
-#include <lualib.h>
-#include <lauxlib.h>
-#include <new>
-#include <utility>
+#include "theme.h"
+#include <assert.h>
+#include <bmusb/bmusb.h>
+#include <epoxy/gl.h>
+#include <lauxlib.h>
+#include <lua.hpp>
+#include <movit/deinterlace_effect.h>
+#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/input.h>
+#include <movit/mix_effect.h>
+#include <movit/multiply_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/util.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 <memory>
+#include <new>
+#include <utility>
-#include "theme.h"
+#include "defs.h"
+#ifdef HAVE_CEF
+#include "cef_capture.h"
+#endif
+#include "ffmpeg_capture.h"
+#include "flags.h"
+#include "image_input.h"
+#include "input_state.h"
+#include "pbo_frame_allocator.h"
+
+#if !defined LUA_VERSION_NUM || LUA_VERSION_NUM==501
+
+// Compatibility shims for LuaJIT 2.0 (LuaJIT 2.1 implements the entire Lua 5.2 API).
+// Adapted from https://github.com/keplerproject/lua-compat-5.2/blob/master/c-api/compat-5.2.c
+// and licensed as follows:
+//
+// The MIT License (MIT)
+//
+// Copyright (c) 2013 Hisham Muhammad
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+// the Software, and to permit persons to whom the Software is furnished to do so,
+// subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+/*
+** Adapted from Lua 5.2.0
+*/
+void luaL_setfuncs(lua_State *L, const luaL_Reg *l, int nup) {
+ luaL_checkstack(L, nup+1, "too many upvalues");
+ for (; l->name != NULL; l++) { /* fill the table with given functions */
+ int i;
+ lua_pushstring(L, l->name);
+ for (i = 0; i < nup; i++) /* copy upvalues to the top */
+ lua_pushvalue(L, -(nup + 1));
+ lua_pushcclosure(L, l->func, nup); /* closure with those upvalues */
+ lua_settable(L, -(nup + 3)); /* table must be below the upvalues, the name and the closure */
+ }
+ lua_pop(L, nup); /* remove upvalues */
+}
-#define WIDTH 1280 // FIXME
-#define HEIGHT 720 // FIXME
+void *luaL_testudata(lua_State *L, int i, const char *tname) {
+ void *p = lua_touserdata(L, i);
+ luaL_checkstack(L, 2, "not enough stack slots");
+ if (p == NULL || !lua_getmetatable(L, i))
+ return NULL;
+ else {
+ int res = 0;
+ luaL_getmetatable(L, tname);
+ res = lua_rawequal(L, -1, -2);
+ lua_pop(L, 2);
+ if (!res)
+ p = NULL;
+ }
+ return p;
+}
+
+#endif
+
+class Mixer;
+
+namespace movit {
+class ResourcePool;
+} // namespace movit
using namespace std;
using namespace movit;
+extern Mixer *global_mixer;
+
+Theme *get_theme_updata(lua_State* L)
+{
+ luaL_checktype(L, lua_upvalueindex(1), LUA_TLIGHTUSERDATA);
+ return (Theme *)lua_touserdata(L, lua_upvalueindex(1));
+}
+
+int ThemeMenu_set(lua_State *L)
+{
+ Theme *theme = get_theme_updata(L);
+ return theme->set_theme_menu(L);
+}
+
namespace {
-vector<LiveInputWrapper *> live_inputs;
+// Contains basically the same data as InputState, but does not hold on to
+// a reference to the frames. This is important so that we can release them
+// without having to wait for Lua's GC.
+struct InputStateInfo {
+ InputStateInfo(const InputState& input_state);
+
+ unsigned last_width[MAX_VIDEO_CARDS], last_height[MAX_VIDEO_CARDS];
+ bool last_interlaced[MAX_VIDEO_CARDS], last_has_signal[MAX_VIDEO_CARDS], last_is_connected[MAX_VIDEO_CARDS];
+ unsigned last_frame_rate_nom[MAX_VIDEO_CARDS], last_frame_rate_den[MAX_VIDEO_CARDS];
+};
+
+InputStateInfo::InputStateInfo(const InputState &input_state)
+{
+ for (unsigned signal_num = 0; signal_num < MAX_VIDEO_CARDS; ++signal_num) {
+ BufferedFrame frame = input_state.buffered_frames[signal_num][0];
+ if (frame.frame == nullptr) {
+ last_width[signal_num] = last_height[signal_num] = 0;
+ last_interlaced[signal_num] = false;
+ last_has_signal[signal_num] = false;
+ last_is_connected[signal_num] = false;
+ continue;
+ }
+ const PBOFrameAllocator::Userdata *userdata = (const PBOFrameAllocator::Userdata *)frame.frame->userdata;
+ last_width[signal_num] = userdata->last_width[frame.field_number];
+ last_height[signal_num] = userdata->last_height[frame.field_number];
+ last_interlaced[signal_num] = userdata->last_interlaced;
+ last_has_signal[signal_num] = userdata->last_has_signal;
+ last_is_connected[signal_num] = userdata->last_is_connected;
+ last_frame_rate_nom[signal_num] = userdata->last_frame_rate_nom;
+ last_frame_rate_den[signal_num] = userdata->last_frame_rate_den;
+ }
+}
+
+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)
{
// Construct the C++ object and put it on the stack.
void *mem = lua_newuserdata(L, sizeof(T));
- new(mem) T(
std::forward<Args>(args)...);
+ new(mem) T(forward<Args>(args)...);
// Look up the metatable named <class_name>, and set it on the new object.
luaL_getmetatable(L, class_name);
return 1;
}
-Theme *get_theme_updata(lua_State* L)
-{
- luaL_checktype(L, lua_upvalueindex(1), LUA_TLIGHTUSERDATA);
- return (Theme *)lua_touserdata(L, lua_upvalueindex(1));
+// Like wrap_lua_object, but the object is not owned by Lua; ie. it's not freed
+// by Lua GC. This is typically the case for Effects, which are owned by EffectChain
+// and expected to be destructed by it. The object will be of type T** instead of T*
+// when exposed to Lua.
+//
+// Note that we currently leak if you allocate an Effect in this way and never call
+// add_effect. We should see if there's a way to e.g. set __gc on it at construction time
+// and then release that once add_effect() takes ownership.
+template<class T, class... Args>
+int wrap_lua_object_nonowned(lua_State* L, const char *class_name, Args&&... args)
+{
+ // Construct the pointer ot the C++ object and put it on the stack.
+ T **obj = (T **)lua_newuserdata(L, sizeof(T *));
+ *obj = new T(forward<Args>(args)...);
+
+ // Look up the metatable named <class_name>, and set it on the new object.
+ luaL_getmetatable(L, class_name);
+ lua_setmetatable(L, -2);
+
+ return 1;
}
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")) {
- return (Effect *)lua_touserdata(L, idx);
+ luaL_testudata(L, idx, "MultiplyEffect") ||
+ 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;
}
+InputStateInfo *get_input_state_info(lua_State *L, int idx)
+{
+ if (luaL_testudata(L, idx, "InputStateInfo")) {
+ return (InputStateInfo *)lua_touserdata(L, idx);
+ }
+ luaL_error(L, "Error: Index #%d was not InputStateInfo\n", idx);
+ return nullptr;
+}
+
bool checkbool(lua_State* L, int idx)
{
luaL_checktype(L, idx, LUA_TBOOLEAN);
return lua_toboolean(L, idx);
}
+string checkstdstring(lua_State *L, int index)
+{
+ size_t len;
+ const char* cstr = lua_tolstring(L, index, &len);
+ return string(cstr, len);
+}
+
int EffectChain_new(lua_State* L)
{
assert(lua_gettop(L) == 2);
+ Theme *theme = get_theme_updata(L);
int aspect_w = luaL_checknumber(L, 1);
int aspect_h = luaL_checknumber(L, 2);
- return wrap_lua_object<EffectChain>(L, "EffectChain", aspect_w, aspect_h);
+ return wrap_lua_object<EffectChain>(L, "EffectChain", aspect_w, aspect_h, theme->get_resource_pool());
+}
+
+int EffectChain_gc(lua_State* L)
+{
+ assert(lua_gettop(L) == 1);
+ EffectChain *chain = (EffectChain *)luaL_checkudata(L, 1, "EffectChain");
+ chain->~EffectChain();
+ return 0;
}
int EffectChain_add_live_input(lua_State* L)
{
- assert(lua_gettop(L) == 2);
+ assert(lua_gettop(L) == 3);
Theme *theme = get_theme_updata(L);
EffectChain *chain = (EffectChain *)luaL_checkudata(L, 1, "EffectChain");
bool override_bounce = checkbool(L, 2);
- return wrap_lua_object<LiveInputWrapper>(L, "LiveInputWrapper", theme, chain, override_bounce);
+ bool deinterlace = checkbool(L, 3);
+ bmusb::PixelFormat pixel_format = global_flags.ten_bit_input ? bmusb::PixelFormat_10BitYCbCr : bmusb::PixelFormat_8BitYCbCr;
+
+ // Needs to be nonowned to match add_video_input (see below).
+ return wrap_lua_object_nonowned<LiveInputWrapper>(L, "LiveInputWrapper", theme, chain, pixel_format, override_bounce, deinterlace, /*user_connectable=*/true);
+}
+
+int EffectChain_add_video_input(lua_State* L)
+{
+ assert(lua_gettop(L) == 3);
+ Theme *theme = get_theme_updata(L);
+ EffectChain *chain = (EffectChain *)luaL_checkudata(L, 1, "EffectChain");
+ FFmpegCapture **capture = (FFmpegCapture **)luaL_checkudata(L, 2, "VideoInput");
+ bool deinterlace = checkbool(L, 3);
+
+ // These need to be nonowned, so that the LiveInputWrapper still exists
+ // and can feed frames to the right EffectChain even if the Lua code
+ // doesn't care about the object anymore. (If we change this, we'd need
+ // to also unregister the signal connection on __gc.)
+ int ret = wrap_lua_object_nonowned<LiveInputWrapper>(
+ L, "LiveInputWrapper", theme, chain, (*capture)->get_current_pixel_format(),
+ /*override_bounce=*/false, deinterlace, /*user_connectable=*/false);
+ if (ret == 1) {
+ Theme *theme = get_theme_updata(L);
+ LiveInputWrapper **live_input = (LiveInputWrapper **)lua_touserdata(L, -1);
+ theme->register_video_signal_connection(chain, *live_input, *capture);
+ }
+ return ret;
+}
+
+#ifdef HAVE_CEF
+int EffectChain_add_html_input(lua_State* L)
+{
+ assert(lua_gettop(L) == 2);
+ Theme *theme = get_theme_updata(L);
+ EffectChain *chain = (EffectChain *)luaL_checkudata(L, 1, "EffectChain");
+ CEFCapture **capture = (CEFCapture **)luaL_checkudata(L, 2, "HTMLInput");
+
+ // These need to be nonowned, so that the LiveInputWrapper still exists
+ // and can feed frames to the right EffectChain even if the Lua code
+ // doesn't care about the object anymore. (If we change this, we'd need
+ // to also unregister the signal connection on __gc.)
+ int ret = wrap_lua_object_nonowned<LiveInputWrapper>(
+ L, "LiveInputWrapper", theme, chain, (*capture)->get_current_pixel_format(),
+ /*override_bounce=*/false, /*deinterlace=*/false, /*user_connectable=*/false);
+ if (ret == 1) {
+ Theme *theme = get_theme_updata(L);
+ LiveInputWrapper **live_input = (LiveInputWrapper **)lua_touserdata(L, -1);
+ theme->register_html_signal_connection(chain, *live_input, *capture);
+ }
+ return ret;
}
+#endif
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<Effect *> inputs;
for (int idx = 3; idx <= lua_gettop(L); ++idx) {
if (luaL_testudata(L, idx, "LiveInputWrapper")) {
- LiveInputWrapper *input = (LiveInputWrapper *)lua_touserdata(L, idx);
- inputs.push_back(input->get_input());
+ LiveInputWrapper **input = (LiveInputWrapper **)lua_touserdata(L, idx);
+ inputs.push_back((*input)->get_effect());
} else {
inputs.push_back(get_effect(L, idx));
}
ImageFormat inout_format;
inout_format.color_space = COLORSPACE_REC_709;
- // 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.
+ // 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()).
+ // We actually output 4:2:0 and/or 4:2:2 in the end, but chroma subsampling
+ // happens in a pass not run by Movit (see ChromaSubsampler::subsample_chroma()).
output_ycbcr_format.chroma_subsampling_x = 1;
output_ycbcr_format.chroma_subsampling_y = 1;
- // 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;
+ // This will be overridden if HDMI/SDI output is in force.
+ if (global_flags.ycbcr_rec709_coefficients) {
+ output_ycbcr_format.luma_coefficients = YCBCR_REC_709;
+ } else {
+ output_ycbcr_format.luma_coefficients = YCBCR_REC_601;
+ }
+
output_ycbcr_format.full_range = false;
- output_ycbcr_format.num_levels = 256;
+ output_ycbcr_format.num_levels = 1 << global_flags.x264_bit_depth;
+
+ GLenum type = global_flags.x264_bit_depth > 8 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_BYTE;
+
+ chain->add_ycbcr_output(inout_format, OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED, output_ycbcr_format, YCBCR_OUTPUT_SPLIT_Y_AND_CBCR, type);
- chain->add_ycbcr_output(inout_format, OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED, output_ycbcr_format, YCBCR_OUTPUT_SPLIT_Y_AND_CBCR);
- chain->set_dither_bits(8);
+ // If we're using zerocopy video encoding (so the destination
+ // Y texture is owned by VA-API and will be unavailable for
+ // display), add a copy, where we'll only be using the Y component.
+ if (global_flags.use_zerocopy) {
+ chain->add_ycbcr_output(inout_format, OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED, output_ycbcr_format, YCBCR_OUTPUT_INTERLEAVED, type); // Add a copy where we'll only be using the Y component.
+ }
+ chain->set_dither_bits(global_flags.x264_bit_depth > 8 ? 16 : 8);
chain->set_output_origin(OUTPUT_ORIGIN_TOP_LEFT);
+ } else {
+ chain->add_output(inout_format, OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
}
- chain->add_output(inout_format, OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED);
chain->finalize();
return 0;
int LiveInputWrapper_connect_signal(lua_State* L)
{
assert(lua_gettop(L) == 2);
- LiveInputWrapper *input = (LiveInputWrapper *)luaL_checkudata(L, 1, "LiveInputWrapper");
+ LiveInputWrapper **input = (LiveInputWrapper **)luaL_checkudata(L, 1, "LiveInputWrapper");
int signal_num = luaL_checknumber(L, 2);
- input->connect_signal(signal_num);
+ bool success = (*input)->connect_signal(signal_num);
+ if (!success) {
+ lua_Debug ar;
+ lua_getstack(L, 1, &ar);
+ lua_getinfo(L, "nSl", &ar);
+ fprintf(stderr, "ERROR: %s:%d: Calling connect_signal() on a video or HTML input. Ignoring.\n",
+ ar.source, ar.currentline);
+ }
+ return 0;
+}
+
+int ImageInput_new(lua_State* L)
+{
+ assert(lua_gettop(L) == 1);
+ string filename = checkstdstring(L, 1);
+ return wrap_lua_object_nonowned<ImageInput>(L, "ImageInput", filename);
+}
+
+int VideoInput_new(lua_State* L)
+{
+ assert(lua_gettop(L) == 2);
+ string filename = checkstdstring(L, 1);
+ int pixel_format = luaL_checknumber(L, 2);
+ if (pixel_format != bmusb::PixelFormat_8BitYCbCrPlanar &&
+ pixel_format != bmusb::PixelFormat_8BitBGRA) {
+ fprintf(stderr, "WARNING: Invalid enum %d used for video format, choosing Y'CbCr.\n",
+ pixel_format);
+ pixel_format = bmusb::PixelFormat_8BitYCbCrPlanar;
+ }
+ int ret = wrap_lua_object_nonowned<FFmpegCapture>(L, "VideoInput", filename, global_flags.width, global_flags.height);
+ if (ret == 1) {
+ FFmpegCapture **capture = (FFmpegCapture **)lua_touserdata(L, -1);
+ (*capture)->set_pixel_format(bmusb::PixelFormat(pixel_format));
+
+ Theme *theme = get_theme_updata(L);
+ theme->register_video_input(*capture);
+ }
+ return ret;
+}
+
+int VideoInput_rewind(lua_State* L)
+{
+ assert(lua_gettop(L) == 1);
+ FFmpegCapture **video_input = (FFmpegCapture **)luaL_checkudata(L, 1, "VideoInput");
+ (*video_input)->rewind();
+ return 0;
+}
+
+int VideoInput_disconnect(lua_State* L)
+{
+ assert(lua_gettop(L) == 1);
+ FFmpegCapture **video_input = (FFmpegCapture **)luaL_checkudata(L, 1, "VideoInput");
+ (*video_input)->disconnect();
return 0;
}
+int VideoInput_change_rate(lua_State* L)
+{
+ assert(lua_gettop(L) == 2);
+ FFmpegCapture **video_input = (FFmpegCapture **)luaL_checkudata(L, 1, "VideoInput");
+ double new_rate = luaL_checknumber(L, 2);
+ (*video_input)->change_rate(new_rate);
+ return 0;
+}
+
+int VideoInput_get_signal_num(lua_State* L)
+{
+ assert(lua_gettop(L) == 1);
+ FFmpegCapture **video_input = (FFmpegCapture **)luaL_checkudata(L, 1, "VideoInput");
+ lua_pushnumber(L, -1 - (*video_input)->get_card_index());
+ return 1;
+}
+
+int HTMLInput_new(lua_State* L)
+{
+#ifdef HAVE_CEF
+ assert(lua_gettop(L) == 1);
+ string url = checkstdstring(L, 1);
+ int ret = wrap_lua_object_nonowned<CEFCapture>(L, "HTMLInput", url, global_flags.width, global_flags.height);
+ if (ret == 1) {
+ CEFCapture **capture = (CEFCapture **)lua_touserdata(L, -1);
+ Theme *theme = get_theme_updata(L);
+ theme->register_html_input(*capture);
+ }
+ return ret;
+#else
+ fprintf(stderr, "This version of Nageru has been compiled without CEF support.\n");
+ fprintf(stderr, "HTMLInput is not available.\n");
+ exit(1);
+#endif
+}
+
+#ifdef HAVE_CEF
+int HTMLInput_set_url(lua_State* L)
+{
+ assert(lua_gettop(L) == 2);
+ CEFCapture **video_input = (CEFCapture **)luaL_checkudata(L, 1, "HTMLInput");
+ string new_url = checkstdstring(L, 2);
+ (*video_input)->set_url(new_url);
+ return 0;
+}
+
+int HTMLInput_reload(lua_State* L)
+{
+ assert(lua_gettop(L) == 1);
+ CEFCapture **video_input = (CEFCapture **)luaL_checkudata(L, 1, "HTMLInput");
+ (*video_input)->reload();
+ return 0;
+}
+
+int HTMLInput_set_max_fps(lua_State* L)
+{
+ assert(lua_gettop(L) == 2);
+ CEFCapture **video_input = (CEFCapture **)luaL_checkudata(L, 1, "HTMLInput");
+ int max_fps = lrint(luaL_checknumber(L, 2));
+ (*video_input)->set_max_fps(max_fps);
+ return 0;
+}
+
+int HTMLInput_execute_javascript_async(lua_State* L)
+{
+ assert(lua_gettop(L) == 2);
+ CEFCapture **video_input = (CEFCapture **)luaL_checkudata(L, 1, "HTMLInput");
+ string js = checkstdstring(L, 2);
+ (*video_input)->execute_javascript_async(js);
+ return 0;
+}
+
+int HTMLInput_resize(lua_State* L)
+{
+ assert(lua_gettop(L) == 3);
+ CEFCapture **video_input = (CEFCapture **)luaL_checkudata(L, 1, "HTMLInput");
+ unsigned width = lrint(luaL_checknumber(L, 2));
+ unsigned height = lrint(luaL_checknumber(L, 3));
+ (*video_input)->resize(width, height);
+ return 0;
+}
+
+int HTMLInput_get_signal_num(lua_State* L)
+{
+ assert(lua_gettop(L) == 1);
+ CEFCapture **video_input = (CEFCapture **)luaL_checkudata(L, 1, "HTMLInput");
+ lua_pushnumber(L, -1 - (*video_input)->get_card_index());
+ return 1;
+}
+#endif
+
int WhiteBalanceEffect_new(lua_State* L)
{
assert(lua_gettop(L) == 0);
- return wrap_lua_object<WhiteBalanceEffect>(L, "WhiteBalanceEffect");
+ return wrap_lua_object_nonowned<WhiteBalanceEffect>(L, "WhiteBalanceEffect");
}
int ResampleEffect_new(lua_State* L)
{
assert(lua_gettop(L) == 0);
- return wrap_lua_object<ResampleEffect>(L, "ResampleEffect");
+ return wrap_lua_object_nonowned<ResampleEffect>(L, "ResampleEffect");
}
int PaddingEffect_new(lua_State* L)
{
assert(lua_gettop(L) == 0);
- return wrap_lua_object<PaddingEffect>(L, "PaddingEffect");
+ return wrap_lua_object
_nonowned<PaddingEffect>(L, "PaddingEffect");
}
int IntegralPaddingEffect_new(lua_State* L)
{
assert(lua_gettop(L) == 0);
- return wrap_lua_object<IntegralPaddingEffect>(L, "IntegralPaddingEffect");
+ return wrap_lua_object_nonowned<IntegralPaddingEffect>(L, "IntegralPaddingEffect");
}
int OverlayEffect_new(lua_State* L)
{
assert(lua_gettop(L) == 0);
- return wrap_lua_object<OverlayEffect>(L, "OverlayEffect");
+ return wrap_lua_object_nonowned<OverlayEffect>(L, "OverlayEffect");
}
int ResizeEffect_new(lua_State* L)
{
assert(lua_gettop(L) == 0);
- return wrap_lua_object<ResizeEffect>(L, "ResizeEffect");
+ return wrap_lua_object_nonowned<ResizeEffect>(L, "ResizeEffect");
+}
+
+int MultiplyEffect_new(lua_State* L)
+{
+ assert(lua_gettop(L) == 0);
+ return wrap_lua_object_nonowned<MultiplyEffect>(L, "MultiplyEffect");
}
int MixEffect_new(lua_State* L)
{
assert(lua_gettop(L) == 0);
- return wrap_lua_object<MixEffect>(L, "MixEffect");
+ return wrap_lua_object_nonowned<MixEffect>(L, "MixEffect");
+}
+
+int InputStateInfo_get_width(lua_State* L)
+{
+ assert(lua_gettop(L) == 2);
+ InputStateInfo *input_state_info = get_input_state_info(L, 1);
+ Theme *theme = get_theme_updata(L);
+ int signal_num = theme->map_signal(luaL_checknumber(L, 2));
+ lua_pushnumber(L, input_state_info->last_width[signal_num]);
+ return 1;
+}
+
+int InputStateInfo_get_height(lua_State* L)
+{
+ assert(lua_gettop(L) == 2);
+ InputStateInfo *input_state_info = get_input_state_info(L, 1);
+ Theme *theme = get_theme_updata(L);
+ int signal_num = theme->map_signal(luaL_checknumber(L, 2));
+ lua_pushnumber(L, input_state_info->last_height[signal_num]);
+ return 1;
+}
+
+int InputStateInfo_get_interlaced(lua_State* L)
+{
+ assert(lua_gettop(L) == 2);
+ InputStateInfo *input_state_info = get_input_state_info(L, 1);
+ Theme *theme = get_theme_updata(L);
+ int signal_num = theme->map_signal(luaL_checknumber(L, 2));
+ lua_pushboolean(L, input_state_info->last_interlaced[signal_num]);
+ return 1;
+}
+
+int InputStateInfo_get_has_signal(lua_State* L)
+{
+ assert(lua_gettop(L) == 2);
+ InputStateInfo *input_state_info = get_input_state_info(L, 1);
+ Theme *theme = get_theme_updata(L);
+ int signal_num = theme->map_signal(luaL_checknumber(L, 2));
+ lua_pushboolean(L, input_state_info->last_has_signal[signal_num]);
+ return 1;
+}
+
+int InputStateInfo_get_is_connected(lua_State* L)
+{
+ assert(lua_gettop(L) == 2);
+ InputStateInfo *input_state_info = get_input_state_info(L, 1);
+ Theme *theme = get_theme_updata(L);
+ int signal_num = theme->map_signal(luaL_checknumber(L, 2));
+ lua_pushboolean(L, input_state_info->last_is_connected[signal_num]);
+ return 1;
+}
+
+int InputStateInfo_get_frame_rate_nom(lua_State* L)
+{
+ assert(lua_gettop(L) == 2);
+ InputStateInfo *input_state_info = get_input_state_info(L, 1);
+ Theme *theme = get_theme_updata(L);
+ int signal_num = theme->map_signal(luaL_checknumber(L, 2));
+ lua_pushnumber(L, input_state_info->last_frame_rate_nom[signal_num]);
+ return 1;
+}
+
+int InputStateInfo_get_frame_rate_den(lua_State* L)
+{
+ assert(lua_gettop(L) == 2);
+ InputStateInfo *input_state_info = get_input_state_info(L, 1);
+ Theme *theme = get_theme_updata(L);
+ int signal_num = theme->map_signal(luaL_checknumber(L, 2));
+ lua_pushnumber(L, input_state_info->last_frame_rate_den[signal_num]);
+ 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);
+ 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);
+ 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);
+ 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);
+ 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;
const luaL_Reg EffectChain_funcs[] = {
{ "new", EffectChain_new },
+ { "__gc", EffectChain_gc },
{ "add_live_input", EffectChain_add_live_input },
+ { "add_video_input", EffectChain_add_video_input },
+#ifdef HAVE_CEF
+ { "add_html_input", EffectChain_add_html_input },
+#endif
{ "add_effect", EffectChain_add_effect },
{ "finalize", EffectChain_finalize },
{ NULL, NULL }
{ 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 VideoInput_funcs[] = {
+ { "new", VideoInput_new },
+ { "rewind", VideoInput_rewind },
+ { "disconnect", VideoInput_disconnect },
+ { "change_rate", VideoInput_change_rate },
+ { "get_signal_num", VideoInput_get_signal_num },
+ { NULL, NULL }
+};
+
+const luaL_Reg HTMLInput_funcs[] = {
+ { "new", HTMLInput_new },
+#ifdef HAVE_CEF
+ { "set_url", HTMLInput_set_url },
+ { "reload", HTMLInput_reload },
+ { "set_max_fps", HTMLInput_set_max_fps },
+ { "execute_javascript_async", HTMLInput_execute_javascript_async },
+ { "resize", HTMLInput_resize },
+ { "get_signal_num", HTMLInput_get_signal_num },
+#endif
+ { 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 }
+};
+
+const luaL_Reg MultiplyEffect_funcs[] = {
+ { "new", MultiplyEffect_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 InputStateInfo_funcs[] = {
+ { "get_width", InputStateInfo_get_width },
+ { "get_height", InputStateInfo_get_height },
+ { "get_interlaced", InputStateInfo_get_interlaced },
+ { "get_has_signal", InputStateInfo_get_has_signal },
+ { "get_is_connected", InputStateInfo_get_is_connected },
+ { "get_frame_rate_nom", InputStateInfo_get_frame_rate_nom },
+ { "get_frame_rate_den", InputStateInfo_get_frame_rate_den },
+ { NULL, NULL }
+};
+
+const luaL_Reg ThemeMenu_funcs[] = {
+ { "set", ThemeMenu_set },
+ { NULL, NULL }
+};
+
} // namespace
-LiveInputWrapper::LiveInputWrapper(Theme *theme, EffectChain *chain, bool override_bounce)
- : theme(theme)
+LiveInputWrapper::LiveInputWrapper(
+ Theme *theme,
+ EffectChain *chain,
+ bmusb::PixelFormat pixel_format,
+ bool override_bounce,
+ bool deinterlace,
+ bool user_connectable)
+ : theme(theme),
+ pixel_format(pixel_format),
+ deinterlace(deinterlace),
+ user_connectable(user_connectable)
{
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.cb_x_position = 0.0;
- 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_709;
- input_ycbcr_format.full_range = false;
-
- if (override_bounce) {
- input = new NonBouncingYCbCrInput(inout_format, input_ycbcr_format, WIDTH, HEIGHT, YCBCR_INPUT_SPLIT_Y_AND_CBCR);
+ unsigned num_inputs;
+ if (deinterlace) {
+ deinterlace_effect = new movit::DeinterlaceEffect();
+
+ // As per the comments in deinterlace_effect.h, we turn this off.
+ // The most likely interlaced input for us is either a camera
+ // (where it's fine to turn it off) or a laptop (where it _should_
+ // be turned off).
+ CHECK(deinterlace_effect->set_int("enable_spatial_interlacing_check", 0));
+
+ num_inputs = deinterlace_effect->num_inputs();
+ assert(num_inputs == FRAME_HISTORY_LENGTH);
+ } else {
+ num_inputs = 1;
+ }
+
+ if (pixel_format == bmusb::PixelFormat_8BitBGRA) {
+ for (unsigned i = 0; i < num_inputs; ++i) {
+ // We upload our textures ourselves, and Movit swaps
+ // R and B in the shader if we specify BGRA, so lie and say RGBA.
+ if (global_flags.can_disable_srgb_decoder) {
+ rgba_inputs.push_back(new sRGBSwitchingFlatInput(inout_format, FORMAT_RGBA_POSTMULTIPLIED_ALPHA, GL_UNSIGNED_BYTE, global_flags.width, global_flags.height));
+ } else {
+ rgba_inputs.push_back(new NonsRGBCapableFlatInput(inout_format, FORMAT_RGBA_POSTMULTIPLIED_ALPHA, GL_UNSIGNED_BYTE, global_flags.width, global_flags.height));
+ }
+ chain->add_input(rgba_inputs.back());
+ }
+
+ if (deinterlace) {
+ vector<Effect *> reverse_inputs(rgba_inputs.rbegin(), rgba_inputs.rend());
+ chain->add_effect(deinterlace_effect, reverse_inputs);
+ }
} else {
- input = new YCbCrInput(inout_format, input_ycbcr_format, WIDTH, HEIGHT, YCBCR_INPUT_SPLIT_Y_AND_CBCR);
+ assert(pixel_format == bmusb::PixelFormat_8BitYCbCr ||
+ pixel_format == bmusb::PixelFormat_10BitYCbCr ||
+ pixel_format == bmusb::PixelFormat_8BitYCbCrPlanar);
+
+ // Most of these settings will be overridden later if using PixelFormat_8BitYCbCrPlanar.
+ input_ycbcr_format.chroma_subsampling_x = (pixel_format == bmusb::PixelFormat_10BitYCbCr) ? 1 : 2;
+ input_ycbcr_format.chroma_subsampling_y = 1;
+ input_ycbcr_format.num_levels = (pixel_format == bmusb::PixelFormat_10BitYCbCr) ? 1024 : 256;
+ input_ycbcr_format.cb_x_position = 0.0;
+ 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_709; // Will be overridden later even if not planar.
+ input_ycbcr_format.full_range = false; // Will be overridden later even if not planar.
+
+ for (unsigned i = 0; i < num_inputs; ++i) {
+ // When using 10-bit input, we're converting to interleaved through v210Converter.
+ YCbCrInputSplitting splitting;
+ if (pixel_format == bmusb::PixelFormat_10BitYCbCr) {
+ splitting = YCBCR_INPUT_INTERLEAVED;
+ } else if (pixel_format == bmusb::PixelFormat_8BitYCbCr) {
+ splitting = YCBCR_INPUT_SPLIT_Y_AND_CBCR;
+ } else {
+ splitting = YCBCR_INPUT_PLANAR;
+ }
+ if (override_bounce) {
+ ycbcr_inputs.push_back(new NonBouncingYCbCrInput(inout_format, input_ycbcr_format, global_flags.width, global_flags.height, splitting));
+ } else {
+ ycbcr_inputs.push_back(new YCbCrInput(inout_format, input_ycbcr_format, global_flags.width, global_flags.height, splitting));
+ }
+ chain->add_input(ycbcr_inputs.back());
+ }
+
+ if (deinterlace) {
+ vector<Effect *> reverse_inputs(ycbcr_inputs.rbegin(), ycbcr_inputs.rend());
+ chain->add_effect(deinterlace_effect, reverse_inputs);
+ }
}
- chain->add_input(input);
}
-void LiveInputWrapper::connect_signal(int signal_num)
+bool LiveInputWrapper::connect_signal(int signal_num)
{
- theme->connect_signal(input, signal_num);
+ if (!user_connectable) {
+ return false;
+ }
+
+ if (global_mixer == nullptr) {
+ // No data yet.
+ return true;
+ }
+
+ signal_num = theme->map_signal(signal_num);
+ connect_signal_raw(signal_num, *theme->input_state);
+ return true;
}
-Theme::Theme(const char *filename, ResourcePool *resource_pool)
- : resource_pool(resource_pool)
+void LiveInputWrapper::connect_signal_raw(int signal_num, const InputState &input_state)
+{
+ BufferedFrame first_frame = input_state.buffered_frames[signal_num][0];
+ if (first_frame.frame == nullptr) {
+ // No data yet.
+ return;
+ }
+ unsigned width, height;
+ {
+ const PBOFrameAllocator::Userdata *userdata = (const PBOFrameAllocator::Userdata *)first_frame.frame->userdata;
+ width = userdata->last_width[first_frame.field_number];
+ height = userdata->last_height[first_frame.field_number];
+ if (userdata->last_interlaced) {
+ height *= 2;
+ }
+ }
+
+ movit::YCbCrLumaCoefficients ycbcr_coefficients = input_state.ycbcr_coefficients[signal_num];
+ bool full_range = input_state.full_range[signal_num];
+
+ if (input_state.ycbcr_coefficients_auto[signal_num]) {
+ full_range = false;
+
+ // The Blackmagic driver docs claim that the device outputs Y'CbCr
+ // according to Rec. 601, but this seems to indicate the subsampling
+ // positions only, as they publish Y'CbCr → RGB formulas that are
+ // different for HD and SD (corresponding to Rec. 709 and 601, respectively),
+ // and a Lenovo X1 gen 3 I used to test definitely outputs Rec. 709
+ // (at least up to rounding error). Other devices seem to use Rec. 601
+ // even on HD resolutions. Nevertheless, Rec. 709 _is_ the right choice
+ // for HD, so we default to that if the user hasn't set anything.
+ if (height >= 720) {
+ ycbcr_coefficients = YCBCR_REC_709;
+ } else {
+ ycbcr_coefficients = YCBCR_REC_601;
+ }
+ }
+
+ // This is a global, but it doesn't really matter.
+ input_ycbcr_format.luma_coefficients = ycbcr_coefficients;
+ input_ycbcr_format.full_range = full_range;
+
+ BufferedFrame last_good_frame = first_frame;
+ for (unsigned i = 0; i < max(ycbcr_inputs.size(), rgba_inputs.size()); ++i) {
+ BufferedFrame frame = input_state.buffered_frames[signal_num][i];
+ if (frame.frame == nullptr) {
+ // Not enough data; reuse last frame (well, field).
+ // This is suboptimal, but we have nothing better.
+ frame = last_good_frame;
+ }
+ const PBOFrameAllocator::Userdata *userdata = (const PBOFrameAllocator::Userdata *)frame.frame->userdata;
+
+ unsigned this_width = userdata->last_width[frame.field_number];
+ unsigned this_height = userdata->last_height[frame.field_number];
+ if (this_width != width || this_height != height) {
+ // Resolution changed; reuse last frame/field.
+ frame = last_good_frame;
+ userdata = (const PBOFrameAllocator::Userdata *)frame.frame->userdata;
+ }
+
+ assert(userdata->pixel_format == pixel_format);
+ switch (pixel_format) {
+ case bmusb::PixelFormat_8BitYCbCr:
+ ycbcr_inputs[i]->set_texture_num(0, userdata->tex_y[frame.field_number]);
+ ycbcr_inputs[i]->set_texture_num(1, userdata->tex_cbcr[frame.field_number]);
+ ycbcr_inputs[i]->change_ycbcr_format(input_ycbcr_format);
+ ycbcr_inputs[i]->set_width(width);
+ ycbcr_inputs[i]->set_height(height);
+ break;
+ case bmusb::PixelFormat_8BitYCbCrPlanar:
+ ycbcr_inputs[i]->set_texture_num(0, userdata->tex_y[frame.field_number]);
+ ycbcr_inputs[i]->set_texture_num(1, userdata->tex_cb[frame.field_number]);
+ ycbcr_inputs[i]->set_texture_num(2, userdata->tex_cr[frame.field_number]);
+ ycbcr_inputs[i]->change_ycbcr_format(userdata->ycbcr_format);
+ ycbcr_inputs[i]->set_width(width);
+ ycbcr_inputs[i]->set_height(height);
+ break;
+ case bmusb::PixelFormat_10BitYCbCr:
+ ycbcr_inputs[i]->set_texture_num(0, userdata->tex_444[frame.field_number]);
+ ycbcr_inputs[i]->change_ycbcr_format(input_ycbcr_format);
+ ycbcr_inputs[i]->set_width(width);
+ ycbcr_inputs[i]->set_height(height);
+ break;
+ case bmusb::PixelFormat_8BitBGRA:
+ rgba_inputs[i]->set_texture_num(userdata->tex_rgba[frame.field_number]);
+ rgba_inputs[i]->set_width(width);
+ rgba_inputs[i]->set_height(height);
+ break;
+ default:
+ assert(false);
+ }
+
+ last_good_frame = frame;
+ }
+
+ if (deinterlace) {
+ BufferedFrame frame = input_state.buffered_frames[signal_num][0];
+ CHECK(deinterlace_effect->set_int("current_field_position", frame.field_number));
+ }
+}
+
+namespace {
+
+int call_num_channels(lua_State *L)
+{
+ lua_getglobal(L, "num_channels");
+
+ if (lua_pcall(L, 0, 1, 0) != 0) {
+ fprintf(stderr, "error running function `num_channels': %s\n", lua_tostring(L, -1));
+ exit(1);
+ }
+
+ int num_channels = luaL_checknumber(L, 1);
+ lua_pop(L, 1);
+ assert(lua_gettop(L) == 0);
+ return num_channels;
+}
+
+} // namespace
+
+Theme::Theme(const string &filename, const vector<string> &search_dirs, ResourcePool *resource_pool, unsigned num_cards)
+ : resource_pool(resource_pool), num_cards(num_cards), signal_to_card_mapping(global_flags.default_stream_mapping)
{
L = luaL_newstate();
luaL_openlibs(L);
- register_class("EffectChain", EffectChain_funcs);
- register_class("LiveInputWrapper", LiveInputWrapper_funcs);
+ // Search through all directories until we find a file that will load
+ // (as in, does not return LUA_ERRFILE); then run it. We store load errors
+ // from all the attempts, and show them once we know we can't find any of them.
+ lua_settop(L, 0);
+ vector<string> errors;
+ bool success = false;
+
+ vector<string> real_search_dirs;
+ if (!filename.empty() && filename[0] == '/') {
+ real_search_dirs.push_back("");
+ } else {
+ real_search_dirs = search_dirs;
+ }
+
+ string path;
+ int theme_code_ref;
+ for (const string &dir : real_search_dirs) {
+ if (dir.empty()) {
+ path = filename;
+ } else {
+ path = dir + "/" + filename;
+ }
+ int err = luaL_loadfile(L, path.c_str());
+ if (err == 0) {
+ // Save the theme for when we're actually going to run it
+ // (we need to set up the right environment below first,
+ // and we couldn't do that before, because we didn't know the
+ // path to put in Nageru.THEME_PATH).
+ theme_code_ref = luaL_ref(L, LUA_REGISTRYINDEX);
+ assert(lua_gettop(L) == 0);
+
+ success = true;
+ break;
+ }
+ errors.push_back(lua_tostring(L, -1));
+ lua_pop(L, 1);
+ if (err != LUA_ERRFILE) {
+ // The file actually loaded, but failed to parse somehow. Abort; don't try the next one.
+ break;
+ }
+ }
+
+ if (!success) {
+ for (const string &error : errors) {
+ fprintf(stderr, "%s\n", error.c_str());
+ }
+ exit(1);
+ }
+ assert(lua_gettop(L) == 0);
+
+ // Make sure the path exposed to the theme (as Nageru.THEME_PATH;
+ // can be useful for locating files when talking to CEF) is absolute.
+ // In a sense, it would be nice if realpath() had a mode not to
+ // resolve symlinks, but it doesn't, so we only call it if we don't
+ // already have an absolute path (which may leave ../ elements etc.).
+ if (path[0] == '/') {
+ theme_path = path;
+ } else {
+ char *absolute_theme_path = realpath(path.c_str(), nullptr);
+ theme_path = absolute_theme_path;
+ free(absolute_theme_path);
+ }
+
+ // Set up the API we provide.
+ register_constants();
+ register_class("EffectChain", EffectChain_funcs);
+ register_class("LiveInputWrapper", LiveInputWrapper_funcs);
+ register_class("ImageInput", ImageInput_funcs);
+ register_class("VideoInput", VideoInput_funcs);
+ register_class("HTMLInput", HTMLInput_funcs);
register_class("WhiteBalanceEffect", WhiteBalanceEffect_funcs);
register_class("ResampleEffect", ResampleEffect_funcs);
register_class("PaddingEffect", PaddingEffect_funcs);
register_class("IntegralPaddingEffect", IntegralPaddingEffect_funcs);
register_class("OverlayEffect", OverlayEffect_funcs);
register_class("ResizeEffect", ResizeEffect_funcs);
+ register_class("MultiplyEffect", MultiplyEffect_funcs);
register_class("MixEffect", MixEffect_funcs);
-
- // Run script.
- lua_settop(L, 0);
- if (luaL_dofile(L, filename)) {
- fprintf(stderr, "error: %s\n", lua_tostring(L, -1));
- lua_pop(L, 1);
+ register_class("InputStateInfo", InputStateInfo_funcs);
+ register_class("ThemeMenu", ThemeMenu_funcs);
+
+ // Now actually run the theme to get everything set up.
+ lua_rawgeti(L, LUA_REGISTRYINDEX, theme_code_ref);
+ luaL_unref(L, LUA_REGISTRYINDEX, theme_code_ref);
+ if (lua_pcall(L, 0, 0, 0)) {
+ fprintf(stderr, "Error when running %s: %s\n", path.c_str(), lua_tostring(L, -1));
exit(1);
}
assert(lua_gettop(L) == 0);
// Ask it for the number of channels.
- lua_getglobal(L, "num_channels");
+ num_channels = call_num_channels(L);
+}
- if (lua_pcall(L, 0, 1, 0) != 0) {
- fprintf(stderr, "error running function `num_channels': %s\n", lua_tostring(L, -1));
- exit(1);
+Theme::~Theme()
+{
+ lua_close(L);
+}
+
+void Theme::register_constants()
+{
+ // Set Nageru.VIDEO_FORMAT_BGRA = bmusb::PixelFormat_8BitBGRA, etc.
+ const vector<pair<string, int>> num_constants = {
+ { "VIDEO_FORMAT_BGRA", bmusb::PixelFormat_8BitBGRA },
+ { "VIDEO_FORMAT_YCBCR", bmusb::PixelFormat_8BitYCbCrPlanar },
+ };
+ const vector<pair<string, string>> str_constants = {
+ { "THEME_PATH", theme_path },
+ };
+
+ lua_newtable(L); // t = {}
+
+ for (const pair<string, int> &constant : num_constants) {
+ lua_pushstring(L, constant.first.c_str());
+ lua_pushinteger(L, constant.second);
+ lua_settable(L, 1); // t[key] = value
+ }
+ for (const pair<string, string> &constant : str_constants) {
+ lua_pushstring(L, constant.first.c_str());
+ lua_pushstring(L, constant.second.c_str());
+ lua_settable(L, 1); // t[key] = value
}
- num_channels = luaL_checknumber(L, 1);
- lua_pop(L, 1);
+ lua_setglobal(L, "Nageru"); // Nageru = t
assert(lua_gettop(L) == 0);
}
void Theme::register_class(const char *class_name, const luaL_Reg *funcs)
{
assert(lua_gettop(L) == 0);
- luaL_newmetatable(L, class_name);
+ 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, t);
lua_pushnumber(L, width);
lua_pushnumber(L, height);
+ wrap_lua_object<InputStateInfo>(L, "InputStateInfo", 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");
+ EffectChain *effect_chain = (EffectChain *)luaL_testudata(L, -2, "EffectChain");
+ if (effect_chain == nullptr) {
+ fprintf(stderr, "get_chain() for chain number %d did not return an EffectChain\n",
+ num);
+ exit(1);
+ }
+ chain.chain = effect_chain;
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);
assert(lua_gettop(L) == 0);
- return make_pair(chain, [this, funcref]{
+
+ chain.setup_chain = [this, funcref, input_state, effect_chain]{
unique_lock<mutex> lock(m);
+ assert(this->input_state == nullptr);
+ 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);
- });
+
+ // The theme can't (or at least shouldn't!) call connect_signal() on
+ // each FFmpeg or CEF input, so we'll do it here.
+ if (video_signal_connections.count(effect_chain)) {
+ for (const VideoSignalConnection &conn : video_signal_connections[effect_chain]) {
+ conn.wrapper->connect_signal_raw(conn.source->get_card_index(), input_state);
+ }
+ }
+#ifdef HAVE_CEF
+ if (html_signal_connections.count(effect_chain)) {
+ for (const CEFSignalConnection &conn : html_signal_connections[effect_chain]) {
+ conn.wrapper->connect_signal_raw(conn.source->get_card_index(), input_state);
+ }
+ }
+#endif
+
+ this->input_state = nullptr;
+ };
+
+ // 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?
+ chain.input_frames.reserve(num_cards * FRAME_HISTORY_LENGTH);
+ 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;
+}
+
+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_name': %s\n", lua_tostring(L, -1));
+ exit(1);
+ }
+ const char *ret = lua_tostring(L, -1);
+ if (ret == nullptr) {
+ fprintf(stderr, "function `channel_name' returned nil for channel %d\n", channel);
+ exit(1);
+ }
+
+ string retstr = ret;
+ lua_pop(L, 1);
+ assert(lua_gettop(L) == 0);
+ return retstr;
+}
+
+int Theme::get_channel_signal(unsigned channel)
+{
+ unique_lock<mutex> lock(m);
+ lua_getglobal(L, "channel_signal");
+ lua_pushnumber(L, channel);
+ if (lua_pcall(L, 1, 1, 0) != 0) {
+ fprintf(stderr, "error running function `channel_signal': %s\n", lua_tostring(L, -1));
+ exit(1);
+ }
+
+ int ret = luaL_checknumber(L, 1);
+ lua_pop(L, 1);
+ assert(lua_gettop(L) == 0);
+ return ret;
+}
+
+std::string Theme::get_channel_color(unsigned channel)
+{
+ unique_lock<mutex> lock(m);
+ lua_getglobal(L, "channel_color");
+ lua_pushnumber(L, channel);
+ if (lua_pcall(L, 1, 1, 0) != 0) {
+ fprintf(stderr, "error running function `channel_color': %s\n", lua_tostring(L, -1));
+ exit(1);
+ }
+
+ const char *ret = lua_tostring(L, -1);
+ if (ret == nullptr) {
+ fprintf(stderr, "function `channel_color' returned nil for channel %d\n", channel);
+ exit(1);
+ }
+
+ string retstr = ret;
+ lua_pop(L, 1);
+ assert(lua_gettop(L) == 0);
+ return retstr;
+}
+
+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)
+vector<string> Theme::get_transition_names(float t)
{
unique_lock<mutex> lock(m);
lua_getglobal(L, "get_transitions");
exit(1);
}
- std::vector<std::string> ret;
+ vector<string> ret;
lua_pushnil(L);
while (lua_next(L, -2) != 0) {
ret.push_back(lua_tostring(L, -1));
return ret;
}
-void Theme::connect_signal(YCbCrInput *input, int signal_num)
+int Theme::map_signal(int signal_num)
+{
+ // Negative numbers map to raw signals.
+ if (signal_num < 0) {
+ return -1 - signal_num;
+ }
+
+ unique_lock<mutex> lock(map_m);
+ if (signal_to_card_mapping.count(signal_num)) {
+ return signal_to_card_mapping[signal_num];
+ }
+
+ int card_index;
+ if (global_flags.output_card != -1 && num_cards > 1) {
+ // Try to exclude the output card from the default card_index.
+ card_index = signal_num % (num_cards - 1);
+ if (card_index >= global_flags.output_card) {
+ ++card_index;
+ }
+ if (signal_num >= int(num_cards - 1)) {
+ fprintf(stderr, "WARNING: Theme asked for input %d, but we only have %u input card(s) (card %d is busy with output).\n",
+ signal_num, num_cards - 1, global_flags.output_card);
+ fprintf(stderr, "Mapping to card %d instead.\n", card_index);
+ }
+ } else {
+ card_index = signal_num % num_cards;
+ if (signal_num >= int(num_cards)) {
+ 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", card_index);
+ }
+ }
+ signal_to_card_mapping[signal_num] = card_index;
+ return card_index;
+}
+
+void Theme::set_signal_mapping(int signal_num, int card_num)
{
- input->set_texture_num(0, input_textures[signal_num].tex_y);
- input->set_texture_num(1, input_textures[signal_num].tex_cbcr);
+ unique_lock<mutex> lock(map_m);
+ assert(card_num < int(num_cards));
+ signal_to_card_mapping[signal_num] = card_num;
}
void Theme::transition_clicked(int transition_num, float t)
}
assert(lua_gettop(L) == 0);
}
+
+int Theme::set_theme_menu(lua_State *L)
+{
+ for (const Theme::MenuEntry &entry : theme_menu) {
+ luaL_unref(L, LUA_REGISTRYINDEX, entry.lua_ref);
+ }
+ theme_menu.clear();
+
+ int num_elements = lua_gettop(L);
+ for (int i = 1; i <= num_elements; ++i) {
+ lua_rawgeti(L, i, 1);
+ const string text = checkstdstring(L, -1);
+ lua_pop(L, 1);
+
+ lua_rawgeti(L, i, 2);
+ luaL_checktype(L, -1, LUA_TFUNCTION);
+ int ref = luaL_ref(L, LUA_REGISTRYINDEX);
+
+ theme_menu.push_back(MenuEntry{ text, ref });
+ }
+ lua_pop(L, num_elements);
+ assert(lua_gettop(L) == 0);
+
+ if (theme_menu_callback != nullptr) {
+ theme_menu_callback();
+ }
+
+ return 0;
+}
+
+void Theme::theme_menu_entry_clicked(int lua_ref)
+{
+ unique_lock<mutex> lock(m);
+ lua_rawgeti(L, LUA_REGISTRYINDEX, lua_ref);
+ if (lua_pcall(L, 0, 0, 0) != 0) {
+ fprintf(stderr, "error running menu callback: %s\n", lua_tostring(L, -1));
+ exit(1);
+ }
+}
projects / nageru / blobdiff