update mpv config

Signed-off-by: Robert Günzler <r@gnzler.io>

1 files changed, 176 insertions, 0 deletions

diff --git a/.config/mpv/mvi/scripts/equalizer.lua b/.config/mpv/mvi/scripts/equalizer.lua
new file mode 100644
index 0000000..f7a50ab
--- /dev/null
+++ b/.config/mpv/mvi/scripts/equalizer.lua
@@ -0,0 +1,176 @@
+local opts = {
+    bars = 'brightness,contrast,gamma,saturation,hue',
+    draw_icons = true,
+}
+
+local msg = require 'mp.msg'
+local assdraw = require 'mp.assdraw'
+local options = require 'mp.options'
+local utils = require 'mp.utils'
+
+options.read_options(opts, nil, function(c)
+end)
+
+local enabled = false
+local active_bars = {}
+local bar_being_dragged = nil
+local stale = false
+
+function split_comma(input)
+    local ret = {}
+    for str in string.gmatch(input, "([^,]+)") do
+        ret[#ret + 1] = str
+    end
+    return ret
+end
+
+function get_position_normalized(x, y, bar)
+    return (x - bar.x) / bar.w, (y - bar.y) / bar.h
+end
+
+function handle_mouse_move()
+    if not bar_being_dragged then return end
+    local bar = bar_being_dragged
+    local mx, my = mp.get_mouse_pos()
+    local nx, _ = get_position_normalized(mx, my, bar)
+    nx = math.max(0, math.min(nx, 1))
+    local val = math.floor(nx * (bar.max_value - bar.min_value) + bar.min_value + 0.5)
+    mp.set_property_number(bar.property, val)
+    -- the observe_property call will take care of setting the value
+end
+
+function handle_mouse_left(table)
+    if table["event"] == "down" then
+        local mx, my = mp.get_mouse_pos()
+        for _, bar in ipairs(active_bars) do
+            local nx, ny = get_position_normalized(mx, my, bar)
+            if nx >= 0 and ny >= 0 and nx <= 1 and ny <= 1 then
+                bar_being_dragged = bar
+                local val = math.floor(nx * (bar.max_value - bar.min_value) + bar.min_value + 0.5)
+                mp.set_property_number(bar.property, val)
+                mp.add_forced_key_binding("mouse_move", "mouse_move", handle_mouse_move)
+                break
+            end
+        end
+    elseif table["event"] == "up" then
+        mp.remove_key_binding("mouse_move")
+        bar_being_dragged = nil
+    end
+end
+
+function property_changed(prop, val)
+    for _, bar in ipairs(active_bars) do
+        if bar.property == prop then
+            bar.value = val
+            stale = true
+            break
+        end
+    end
+end
+
+function idle_handler()
+    if not stale then return end
+    stale = false
+    local a = assdraw.ass_new()
+    a:new_event()
+    a:append(string.format('{\\an0\\bord2\\shad0\\1a&00&\\1c&%s&}', '888888'))
+    a:pos(0, 0)
+    a:draw_start()
+    for _, bar in ipairs(active_bars) do
+        a:rect_cw(bar.x, bar.y, bar.x + bar.w, bar.y + bar.h)
+    end
+    a:new_event()
+    a:append(string.format('{\\an0\\bord2\\shad0\\1a&00&\\1c&%s&}', 'dddddd'))
+    a:pos(0, 0)
+    a:draw_start()
+    for _, bar in ipairs(active_bars) do
+        if bar.value > bar.min_value then
+            local val_norm = (bar.value - bar.min_value) / (bar.max_value - bar.min_value)
+            a:rect_cw(bar.x, bar.y, bar.x + val_norm * bar.w, bar.y + bar.h)
+        end
+    end
+    for _, bar in ipairs(active_bars) do
+        a:new_event()
+        a:append("{\\an6\\fs40\\bord2}")
+        a:pos(bar.x - 8, bar.y + bar.h/2 - 2)
+        a:append(bar.property:sub(1,1):upper() .. bar.property:sub(2,-1))
+    end
+    local ww, wh = mp.get_osd_size()
+    mp.set_osd_ass(ww, wh, a.text)
+end
+
+function fix_position()
+    local ww, wh = mp.get_osd_size()
+    for i, bar in ipairs(active_bars) do
+        bar.x = ww / 5
+        bar.y = wh / 2 + i * 50
+        bar.w = ww - 2 * (ww / 5)
+        bar.h = 30
+    end
+end
+
+function dimensions_changed()
+    stale = true
+    fix_position()
+end
+
+function enable()
+    if enabled then return end
+    enabled = true
+    mp.add_forced_key_binding("MBTN_LEFT", "mouse_left", handle_mouse_left, {complex=true})
+    for i, prop in ipairs(split_comma(opts.bars)) do
+        local prop_info = mp.get_property_native("option-info/" .. prop)
+        if not prop_info then
+            msg.warn("Property \'" .. prop .. "\' does not exist")
+        elseif not prop_info.type == 'Integer' then
+            msg.warn("Property \'" .. prop .. "\' is not an integer")
+        else
+            mp.observe_property(prop, 'native', property_changed)
+            active_bars[#active_bars + 1] = {
+                property = prop,
+                value = mp.get_property_number(prop),
+                min_value = prop_info.min,
+                max_value = prop_info.max,
+            }
+        end
+    end
+    stale = true
+    fix_position()
+    mp.observe_property("osd-dimensions", "native", dimensions_changed)
+    mp.register_idle(idle_handler)
+end
+
+function disable()
+    if not enabled then return end
+    enabled = false
+    active_bars = {}
+    bar_being_dragged = nil
+    mp.remove_key_binding("mouse_left")
+    mp.remove_key_binding("mouse_move")
+    mp.unobserve_property(property_changed)
+    mp.unobserve_property(dimensions_changed)
+    mp.unregister_idle(idle_handler)
+    mp.set_osd_ass(1280, 720, "")
+end
+
+function toggle()
+    if enabled then
+        disable()
+    else
+        enable()
+    end
+end
+
+function reset()
+    for _, prop in ipairs(split_comma(opts.bars)) do
+        local prop_info = mp.get_property_native("option-info/" .. prop)
+        if prop_info and prop_info["default-value"] then
+            mp.set_property(prop_info["name"], prop_info["default-value"])
+        end
+    end
+end
+
+mp.add_key_binding(nil, "equalizer-enable", enable)
+mp.add_key_binding(nil, "equalizer-disable", disable)
+mp.add_key_binding(nil, "equalizer-toggle", toggle)
+mp.add_key_binding(nil, "equalizer-reset", reset)