From 9c11f04d9afd63006402e44f918718b2bc3ce8d8 Mon Sep 17 00:00:00 2001
From: Fredrik Mellbin <fredrik.mellbin@gmail.com>
Date: Thu, 4 Apr 2024 20:28:33 +0200
Subject: [PATCH] Document sequence opening

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index 9d721c5..299b796 100644
--- a/README.md
+++ b/README.md
@@ -60,6 +60,8 @@ ninja -C build install
 
 ## Argument explanation
 
+*source*: The source filename. Note that image sequences also can be opened by using %d or %03d for zero padded numbers. Sequences may start at any number between 0 and 4.
+
 *track*: Either a positive number starting from 0 specifying the absolute track number or a negative number to select the nth audio or video track. Throws an error on wrong type or no matching track.
 
 *adjustdelay*: Adjust audio start time relative to track number. Pass -2 to disable and -1 to be relative to the first video track if one exists.