From d5940fabcd6b477c72430c84e460975060807646 Mon Sep 17 00:00:00 2001
From: wm4 <wm4@nowhere>
Date: Thu, 14 Aug 2014 23:59:35 +0200
Subject: sub: add option to workaround broken mkv files

See additions to options.rst.
---
 DOCS/man/options.rst | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'DOCS')

diff --git a/DOCS/man/options.rst b/DOCS/man/options.rst
index 2bc7353299..356bd903b3 100644
--- a/DOCS/man/options.rst
+++ b/DOCS/man/options.rst
@@ -1322,6 +1322,13 @@ Subtitles
     Can be used to disable display of subtitles, but still select and decode
     them.
 
+``--sub-clear-on-seek``
+    (Obscure, rarely useful.) Can be used to play broken mkv files with
+    duplicate ReadOrder fields. ReadOrder is the first field in a
+    Matroska-style ASS subtitle packets. It should be unique, and libass
+    uses it for fast elimination of duplicates. This option disables caching
+    of subtitles across seeks, so after a seek libass can't eliminate subtitle
+    packets with the same ReadOrder as earlier packets.
 
 Window
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