From: Felix Domke <tmbinc@elitedvb.net>
Date: Wed, 8 Feb 2006 00:02:07 +0000 (+0000)
Subject: tstools: check for wrap arounds in length calculation
X-Git-Tag: 2.6.0~4181
X-Git-Url: https://git.cweiske.de/enigma2.git/commitdiff_plain/e2533724e8916f949402182731d30b86b8fdb9b3

tstools: check for wrap arounds in length calculation
---

diff --git a/lib/dvb/tstools.cpp b/lib/dvb/tstools.cpp
index 1b7c5d92..bec17a56 100644
--- a/lib/dvb/tstools.cpp
+++ b/lib/dvb/tstools.cpp
@@ -169,6 +169,9 @@ int eDVBTSTools::calcLen(pts_t &len)
 	if (!(m_begin_valid && m_end_valid))
 		return -1;
 	len = m_pts_end - m_pts_begin;
+		/* wrap around? */
+	if (len < 0)
+		len += 0x200000000LL;
 	return 0;
 }
 
@@ -179,6 +182,10 @@ int eDVBTSTools::calcBitrate()
 		return -1;
 
 	pts_t len_in_pts = m_pts_end - m_pts_begin;
+
+		/* wrap around? */
+	if (len_in_pts < 0)
+		len_in_pts += 0x200000000LL;
 	off_t len_in_bytes = m_offset_end - m_offset_begin;
 	
 	if (!len_in_pts)