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From f1febbdddc573c7684e1761abfe568ebfcfcdcd1 Mon Sep 17 00:00:00 2001
From: John Stebbins <jstebbins.hb@gmail.com>
Date: Fri, 10 May 2013 08:49:58 -0700
Subject: [PATCH 3/9] matroskaenc: Fix writing TRACKDEFAULTFLAG
The element was only being written when the value == 1. But the default
value of this element is 1, so this has no useful effect. This element
needs to be written when the value == 0.
---
libavformat/matroskaenc.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c
index 4858af5..358ba66 100644
--- a/libavformat/matroskaenc.c
+++ b/libavformat/matroskaenc.c
@@ -568,7 +568,9 @@ static int mkv_write_tracks(AVFormatContext *s)
tag = av_dict_get(st->metadata, "language", NULL, 0);
put_ebml_string(pb, MATROSKA_ID_TRACKLANGUAGE, tag ? tag->value:"und");
- if (st->disposition)
+ // The default value for TRACKFLAGDEFAULT is 1, so add element
+ // if we need to clear it.
+ if (!(st->disposition & AV_DISPOSITION_DEFAULT))
put_ebml_uint(pb, MATROSKA_ID_TRACKFLAGDEFAULT, !!(st->disposition & AV_DISPOSITION_DEFAULT));
// look for a codec ID string specific to mkv to use,
--
1.8.1.4
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