support changing font size

1 files changed, 7 insertions, 2 deletions

diff --git a/main.lua b/main.lua
index 30f716e..71e313c 100644
--- a/main.lua
+++ b/main.lua
@@ -3,8 +3,11 @@ local utils = require('mp.utils')
 local script_dir = mp.get_script_directory()
 local stream_prefix = mp.get_opt('iptv_menu.stream_prefix')
 
+-- font size is in units of osd height, which is scaled to 720
+local font_size = 20
 local osd = mp.create_osd_overlay('ass-events')
-local osd_lines = 23
+local osd_lines = math.floor((720 / font_size) + 0.5) - 1
+local osd_padding = math.floor((720 - (osd_lines * font_size)) / 2)
 local key_bindings = {}
 
 local categories = {}
@@ -74,7 +77,9 @@ local function update_osd()
 		out[#out+1] = str
 	end
 
-	osd.data = '{\\q2}' .. table.concat(out, '\\N')
+	-- \q2 disables line wrapping
+	osd.data = '{\\q2}{\\fs' .. font_size .. '}{\\pos(' .. osd_padding ..
+		',' .. osd_padding .. '}' .. table.concat(out, '\\N')
 	osd:update()
 end