return 1;
}
+namespace {
+
+// Helper function to write e.g. “60” or “59.94”.
+string format_frame_rate(int nom, int den)
+{
+ char buf[256];
+ if (nom % den == 0) {
+ snprintf(buf, sizeof(buf), "%d", nom / den);
+ } else {
+ snprintf(buf, sizeof(buf), "%.2f", double(nom) / den);
+ }
+ return buf;
+}
+
+// Helper function to write e.g. “720p60”.
+string get_human_readable_resolution(const InputStateInfo *input_state_info, int signal_num)
+{
+ char buf[256];
+ if (input_state_info->last_interlaced[signal_num]) {
+ snprintf(buf, sizeof(buf), "%di", input_state_info->last_height[signal_num] * 2);
+
+ // Show field rate instead of frame rate; really for cosmetics only
+ // (and actually contrary to EBU recommendations, although in line
+ // with typical user expectations).
+ return buf + format_frame_rate(input_state_info->last_frame_rate_nom[signal_num] * 2,
+ input_state_info->last_frame_rate_den[signal_num]);
+ } else {
+ snprintf(buf, sizeof(buf), "%dp", input_state_info->last_height[signal_num]);
+ return buf + format_frame_rate(input_state_info->last_frame_rate_nom[signal_num],
+ input_state_info->last_frame_rate_den[signal_num]);
+ }
+}
+
+} // namespace
+
+int InputStateInfo_get_human_readable_resolution(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));
+
+ string str;
+ if (!input_state_info->last_is_connected[signal_num]) {
+ str = "disconnected";
+ } else if (input_state_info->last_height[signal_num]) {
+ str = "no signal";
+ } else if (!input_state_info->last_has_signal[signal_num]) {
+ if (input_state_info->last_height[signal_num]) {
+ // Special mode for the USB3 cards.
+ str = "no signal";
+ } else {
+ str = get_human_readable_resolution(input_state_info, signal_num) + ", no signal";
+ }
+ } else {
+ str = get_human_readable_resolution(input_state_info, signal_num);
+ }
+
+ lua_pushstring(L, str.c_str());
+ return 1;
+}
+
+
int EffectBlueprint_set_int(lua_State *L)
{
assert(lua_gettop(L) == 3);
{ "get_frame_rate_nom", InputStateInfo_get_frame_rate_nom },
{ "get_frame_rate_den", InputStateInfo_get_frame_rate_den },
{ "get_last_subtitle", InputStateInfo_get_last_subtitle },
+ { "get_human_readable_resolution", InputStateInfo_get_human_readable_resolution },
{ NULL, NULL }
};
return num == INPUT0_SIGNAL_NUM or num == INPUT1_SIGNAL_NUM
end
--- Helper function to write e.g. “720p60”. The difference between this
--- and get_channel_resolution_raw() is that this one also can say that
--- there's no signal.
-function get_channel_resolution(signal_num)
- local res = last_resolution[signal_num]
- if (not res) or not res.is_connected then
- return "disconnected"
- end
- if res.height <= 0 then
- return "no signal"
- end
- if not res.has_signal then
- if res.height == 525 then
- -- Special mode for the USB3 cards.
- return "no signal"
- end
- return get_channel_resolution_raw(res) .. ", no signal"
- else
- return get_channel_resolution_raw(res)
- end
-end
-
--- Helper function to write e.g. “60” or “59.94”.
-function get_frame_rate(res)
- local nom = res.frame_rate_nom
- local den = res.frame_rate_den
- if nom % den == 0 then
- return nom / den
- else
- return string.format("%.2f", nom / den)
- end
-end
-
--- Helper function to write e.g. “720p60”.
-function get_channel_resolution_raw(res)
- if res.interlaced then
- return res.height .. "i" .. get_frame_rate(res)
- else
- return res.height .. "p" .. get_frame_rate(res)
- end
-end
-
-- API ENTRY POINT
-- Returns the name for each additional channel (starting from 2).
-- Called at the start of the program, and then each frame for live
function channel_name(channel)
local signal_num = channel - 2
if is_plain_signal(signal_num) then
- return "Input " .. (signal_num + 1) .. " (" .. get_channel_resolution(signal_num) .. ")"
+ if last_resolution[signal_num] then
+ return "Input " .. (signal_num + 1) .. " (" .. last_resolution[signal_num].human_readable_resolution .. ")"
+ else
+ return "Input " .. (signal_num + 1)
+ end
elseif signal_num == SBS_SIGNAL_NUM then
return "Side-by-side"
elseif signal_num == STATIC_SIGNAL_NUM then
is_connected = signals:get_is_connected(signal_num),
has_signal = signals:get_has_signal(signal_num),
frame_rate_nom = signals:get_frame_rate_nom(signal_num),
- frame_rate_den = signals:get_frame_rate_den(signal_num)
+ frame_rate_den = signals:get_frame_rate_den(signal_num),
+ human_readable_resolution = signals:get_human_readable_resolution(signal_num)
}
if res.interlaced then