input.conf: clarify the magic how default key bindings are added

This is a confusing mechanism, so the explanation should bit more clear.

1 files changed, 7 insertions, 3 deletions

diff --git a/etc/input.conf b/etc/input.conf
index 1687220d08..432444f753 100644
--- a/etc/input.conf
+++ b/etc/input.conf
@@ -31,9 +31,13 @@
 # file to ~/.mpv/input.conf, and uncomment and edit the binding you want to
 # change.
 
-# Developer note: this file is baked into the mpv binary, and internally,
-# entries are uncommented and added as default bindings. Lines that have a
-# space after the '#' are ignored.
+# Developer note:
+# etc/input.conf from the mpv source tree is baked into the mpv binary, with
+# all entries magically uncommented and parsed on initialization. This, this
+# file defines the mpv default key bindings. If this file is read as normal
+# config file, all lines starting with '#' are treated as comments (and this
+# file, if unedited, doesn't define any bindings).
+# Lines that have a space after the '#' are always ignored as real comments.
 
 #MOUSE_BTN0 ignore                      # don't do anything
 #MOUSE_BTN0_DBL cycle fullscreen        # toggle fullscreen on/off