1 files changed, 55 insertions, 0 deletions
diff --git a/mpv/scripts/auto-save-state.lua b/mpv/scripts/auto-save-state.lua
new file mode 100644
index 0000000..a4ec3ec
--- /dev/null
+++ b/mpv/scripts/auto-save-state.lua
@@ -0,0 +1,55 @@
+-- Save watch-later conditionally.
+-- a) Always for playlists (so mpv remembers the position within this playlist)
+-- b) Never for files shorter than `min_length` seconds
+-- c) When the current playback position is > `thresh_start` and < `thresh_end`
+
+
+local opts = require 'mp.options'
+local o = {
+    min_length = 600,
+    thresh_end = 180,
+    thresh_start = 60,
+}
+opts.read_options(o)
+
+
+-- Return true when multiple files are being played
+function check_playlist()
+    local pcount, err = mp.get_property_number("playlist-count")
+    if not pcount then
+        print("error: " .. err)
+        pcount = 1
+    end
+
+    return pcount > 1
+end
+
+
+-- Return true when the current playback time is not too close to the start or end
+-- Always return false for short files, no matter the playback time
+function check_time()
+    local duration = mp.get_property_number("duration", 9999)
+    if duration < o.min_length then
+        return false
+    end
+
+    local remaining, err = mp.get_property_number("time-remaining")
+    if not remaining then
+        print("error: " .. err)
+        remaining = -math.huge
+    end
+    local pos, err = mp.get_property_number("time-pos")
+    if not pos then
+        print("error: " .. err)
+        pos = -math.huge
+    end
+
+    return pos > o.thresh_start and remaining > o.thresh_end
+end
+
+
+mp.add_key_binding("q", "quit-watch-later-conditional",
+    function()
+        mp.set_property_bool("options/save-position-on-quit", check_playlist() or check_time())
+        mp.command("quit")
+    end)