feat: added audio indicator for audio files without cover

ref #686

script-opts/uosc.conf

@@ -52,6 +52,7 @@ progress_line_width=20
 #     - `audio` - true for audio only files
 #     - `video` - true for files with a video track
 #     - `has_many_video` - true for files with more than one video track
+#     - `has_image` - true for files with a cover or other image track
 #     - `has_audio` - true for files with an audio track
 #     - `has_many_audio` - true for files with more than one audio track
 #     - `has_sub` - true for files with an subtitle track

scripts/uosc/lib/utils.lua

@@ -655,6 +655,13 @@ function render()
 	-- Actual rendering
 	local ass = assdraw.ass_new()
 
+	-- Audio indicator
+	if state.is_audio and not state.has_image then
+		local smaller_side = math.min(display.width, display.height)
+		ass:icon(display.width / 2, display.height / 2, smaller_side / 3, 'graphic_eq', {color = fg, opacity = 0.5})
+	end
+
+	-- Elements
 	for _, element in Elements:ipairs() do
 		if element.enabled then
 			local result = element:maybe('render')

scripts/uosc/main.lua

@@ -424,6 +424,7 @@ state = {
 	is_audio = false, -- true if file is audio only (mp3, etc)
 	is_image = false,
 	is_stream = false,
+	has_image = false,
 	has_audio = false,
 	has_sub = false,
 	has_chapter = false,
@@ -747,6 +748,7 @@ mp.observe_property('track-list', 'native', function(name, value)
 	end
 	set_state('is_audio', types.video == 0 and types.audio > 0)
 	set_state('is_image', types.image > 0 and types.video == 0 and types.audio == 0)
+	set_state('has_image', types.image > 0)
 	set_state('has_audio', types.audio > 0)
 	set_state('has_many_audio', types.audio > 1)
 	set_state('has_sub', types.sub > 0)