Accepting request 40581 from home:plater
Copy from home:plater/dirac via accept of submit request 40581 revision 6. Request was accepted with message: Reviewed ok OBS-URL: https://build.opensuse.org/request/show/40581 OBS-URL: https://build.opensuse.org/package/show/multimedia:libs/dirac?expand=0&rev=17
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@ -0,0 +1,52 @@
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From 88fae6224b54ecf92ac6e3ae5083c3f352adc798 Mon Sep 17 00:00:00 2001
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From: Anuradha Suraparaju <anuradha@hoyle.rd.bbc.co.uk>
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Date: Fri, 17 Apr 2009 17:47:27 +1000
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Subject: [PATCH] Fix uninitialised memory read that causes the encoder to crash when using
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non-overlapping blocks.
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---
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libdirac_common/mot_comp.cpp | 21 +++++++++++++++------
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1 files changed, 15 insertions(+), 6 deletions(-)
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diff --git a/libdirac_common/mot_comp.cpp b/libdirac_common/mot_comp.cpp
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index aa8d37c..e0ec2ff 100644
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--- a/libdirac_common/mot_comp.cpp
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+++ b/libdirac_common/mot_comp.cpp
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@@ -306,6 +306,8 @@ void MotionCompensator::CompensateComponent( Picture* pic ,
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int save_from_row = m_bparams.Ybsep()-m_bparams.Yoffset();
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+ bool row_overlap = ((m_bparams.Yblen() - m_bparams.Ybsep()) > 0);
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+
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// unpadded picture dimensions
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const int x_end_data = pic_data_out.FirstX() + std::min(pic_data_out.LengthX(), pic_size.x );
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const int y_end_data = pic_data_out.FirstY() + std::min(pic_data_out.LengthY(), pic_size.y );
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@@ -489,12 +491,19 @@ void MotionCompensator::CompensateComponent( Picture* pic ,
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//Increment the block vertical position
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pos.y += m_bparams.Ybsep();
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- // Copy the rows required to motion compensate the next row of block.
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- // This is usually Yblen-Ybsep rows.
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- memmove (pic_data[0], pic_data[save_from_row], (m_bparams.Yblen() - save_from_row)*pic_data.LengthX()*sizeof(ValueType));
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- memset( pic_data[m_bparams.Yblen() - save_from_row], 0, save_from_row*pic_data.LengthX()*sizeof(ValueType) );
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- save_from_row = m_bparams.Ybsep();
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-
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+ if (row_overlap)
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+ {
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+ // Copy the rows required to motion compensate the next row of
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+ // blocks. This is usually Yblen-Ybsep rows.
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+ memmove (pic_data[0], pic_data[save_from_row], (m_bparams.Yblen() - save_from_row)*pic_data.LengthX()*sizeof(ValueType));
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+ memset( pic_data[m_bparams.Yblen() - save_from_row], 0, save_from_row*pic_data.LengthX()*sizeof(ValueType) );
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+ save_from_row = m_bparams.Ybsep();
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+ }
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+ else
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+ {
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+ // no row overlap. So reset pic_data to 0.
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+ memset( pic_data[0], 0, m_bparams.Yblen()*pic_data.LengthX()*sizeof(ValueType) );
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+ }
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}//yblock
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if ( m_add_or_sub == SUBTRACT)
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--
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1.7.0.3
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@ -1,8 +1,14 @@
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-------------------------------------------------------------------
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Mon May 24 13:25:36 UTC 2010 - davejplater@gmail.com
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- Split off doc subpackage
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-------------------------------------------------------------------
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Mon May 24 07:01:37 UTC 2010 - davejplater@gmail.com
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- Added Provides: and Obsoletes: for packman libdirac-devel and
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dirac-doc which are merged in openSUSE dirac-devel.
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- Added Provides: and Obsoletes: for packman libdirac-devel
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- Included patch from dirac git to fix uninitialised memory read
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that causes the encoder to crash when using non-overlapping blocks.
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-------------------------------------------------------------------
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Sun May 9 08:49:10 UTC 2010 - davejplater@gmail.com
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42
dirac.spec
42
dirac.spec
@ -24,9 +24,10 @@ Release: 4
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Url: http://diracvideo.org/
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Group: Productivity/Multimedia/Video/Editors and Convertors
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License: MPL ..
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Summary: The dirac Video Codec
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Summary: The Dirac_Video Codec
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Source: %{name}-%{version}.tar.bz2
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Patch0: %{name}-%{version}-gcc45.patch
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Patch0: 0001-Fix-uninitialised-memory-read-that-causes-the-encode.patch
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Patch1: %{name}-%{version}-gcc45.patch
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BuildRequires: gcc-c++ libstdc++-devel
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BuildRequires: libcppunit-devel
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%ifnarch ia64 s390 s390x %sparc
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@ -166,10 +167,11 @@ Authors:
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License: MPL ..
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Group: Development/Libraries/C and C++
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Summary: Development Files for Dirac Video Codec
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AutoReqProv: on
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Requires: libdirac_decoder0 = %{version}
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Requires: libdirac_encoder0 = %{version}
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Provides: libdirac-devel = %{version} dirac-doc = %{version}
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Obsoletes: libdirac-devel <= %{version} dirac-doc <= %{version}
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Provides: libdirac-devel = %{version}-%{release}
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Obsoletes: libdirac-devel < %{version}-%{release}
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%description devel
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Dirac is an open source video codec. It uses a traditional hybrid video
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@ -210,9 +212,22 @@ Authors:
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Peter Bleackley <diracinfo@rd.bbc.co.uk>, BBC Research and Development
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Myo Tun <myo.tun@brunel.ac.uk>, Brunel University
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%package doc
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License: MPL ..
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Group: Documentation/HTML
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Summary: Dirac Video Codec api documentation
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%if 0%{?suse_version} > 1110
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BuildArch: noarch
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%endif
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%description doc
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This package provides the api reference documentation for using dirac libraries
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in your program.
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%prep
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%setup -q
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%patch0 -p1
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%patch1 -p1
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# Code is not mature enough for -Werror (unused results)
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sed -i 's/-Werror//' configure.ac
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@ -226,8 +241,10 @@ export CXXFLAGS="$RPM_OPT_FLAGS -O0"
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%endif
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%endif
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%configure\
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--disable-static
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%{__make} %{?jobs:-j%jobs} htmldir=%{_docdir}/%{name}/code/api_html
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--disable-static \
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--docdir=%{_docdir}/packages/%{name}
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%{__make} %{?jobs:-j%jobs}
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#htmldir=%{_docdir}/%{name}/code/api_html
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%install
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%makeinstall htmldir=%{_docdir}/%{name}/code/api_html
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@ -248,8 +265,8 @@ export CXXFLAGS="$RPM_OPT_FLAGS -O0"
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%files
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%defattr (-, root, root)
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%doc %dir %{_docdir}/%{name}
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%doc %{_docdir}/%{name}/[ACNRT]*
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#%%doc AUTHORS COPYING ChangeLog NEWS README TODO
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#%%doc %{_docdir}/%{name}/[ACNRT]*
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%{_bindir}/*
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%files -n libdirac_decoder0
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@ -262,10 +279,15 @@ export CXXFLAGS="$RPM_OPT_FLAGS -O0"
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%files devel
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%defattr (-, root, root)
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%doc %{_docdir}/%{name}/code
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#%%doc %{_docdir}/%{name}/[ACNRT]*
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%{_libdir}/*.so
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#%{_libdir}/*.*a
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%{_libdir}/pkgconfig/*.pc
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%{_includedir}/dirac
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%{_includedir}/%{name}
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%files doc
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%defattr (-, root, root)
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%doc %{_docdir}/%{name}
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%changelog
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