From 120a083fb7125dbab3fce5b02be89f1b21b1dfdd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Reimar=20D=C3=B6ffinger?= <Reimar.Doeffinger@gmx.de>
Date: Tue, 8 Jun 2010 19:31:08 +0000
Subject: [PATCH] Do not attempt to seek to index for streamed files and if the
 user explicitly requested us not to read the index.

Originally committed as revision 23540 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavformat/matroskadec.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index 75da12a3cc..6002c9ada0 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -1064,6 +1064,11 @@ static void matroska_execute_seekhead(MatroskaDemuxContext *matroska)
     MatroskaLevel level;
     int i;
 
+    // we should not do any seeking in the streaming case
+    if (url_is_streamed(matroska->ctx->pb) ||
+        (matroska->ctx->flags & AVFMT_FLAG_IGNIDX))
+        return;
+
     for (i=0; i<seekhead_list->nb_elem; i++) {
         int64_t offset = seekhead[i].pos + matroska->segment_start;