From e4957c7dcabc9b99da15fa56f876413460d6344e Mon Sep 17 00:00:00 2001 From: dsomero Date: Sun, 20 Mar 2011 20:01:46 -0400 Subject: multimedia/dirac: Added patches to fix building on 13.37. Signed-off-by: dsomero --- multimedia/dirac/encoder.patch | 52 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 multimedia/dirac/encoder.patch (limited to 'multimedia/dirac/encoder.patch') diff --git a/multimedia/dirac/encoder.patch b/multimedia/dirac/encoder.patch new file mode 100644 index 0000000000..a1b8d9bcb0 --- /dev/null +++ b/multimedia/dirac/encoder.patch @@ -0,0 +1,52 @@ +From 88fae6224b54ecf92ac6e3ae5083c3f352adc798 Mon Sep 17 00:00:00 2001 +From: Anuradha Suraparaju +Date: Fri, 17 Apr 2009 17:47:27 +1000 +Subject: [PATCH] Fix uninitialised memory read that causes the encoder to crash when using + non-overlapping blocks. + +--- + libdirac_common/mot_comp.cpp | 21 +++++++++++++++------ + 1 files changed, 15 insertions(+), 6 deletions(-) + +diff --git a/libdirac_common/mot_comp.cpp b/libdirac_common/mot_comp.cpp +index aa8d37c..e0ec2ff 100644 +--- a/libdirac_common/mot_comp.cpp ++++ b/libdirac_common/mot_comp.cpp +@@ -306,6 +306,8 @@ void MotionCompensator::CompensateComponent( Picture* pic , + + int save_from_row = m_bparams.Ybsep()-m_bparams.Yoffset(); + ++ bool row_overlap = ((m_bparams.Yblen() - m_bparams.Ybsep()) > 0); ++ + // unpadded picture dimensions + const int x_end_data = pic_data_out.FirstX() + std::min(pic_data_out.LengthX(), pic_size.x ); + const int y_end_data = pic_data_out.FirstY() + std::min(pic_data_out.LengthY(), pic_size.y ); +@@ -489,12 +491,19 @@ void MotionCompensator::CompensateComponent( Picture* pic , + //Increment the block vertical position + pos.y += m_bparams.Ybsep(); + +- // Copy the rows required to motion compensate the next row of block. +- // This is usually Yblen-Ybsep rows. +- memmove (pic_data[0], pic_data[save_from_row], (m_bparams.Yblen() - save_from_row)*pic_data.LengthX()*sizeof(ValueType)); +- memset( pic_data[m_bparams.Yblen() - save_from_row], 0, save_from_row*pic_data.LengthX()*sizeof(ValueType) ); +- save_from_row = m_bparams.Ybsep(); +- ++ if (row_overlap) ++ { ++ // Copy the rows required to motion compensate the next row of ++ // blocks. This is usually Yblen-Ybsep rows. ++ memmove (pic_data[0], pic_data[save_from_row], (m_bparams.Yblen() - save_from_row)*pic_data.LengthX()*sizeof(ValueType)); ++ memset( pic_data[m_bparams.Yblen() - save_from_row], 0, save_from_row*pic_data.LengthX()*sizeof(ValueType) ); ++ save_from_row = m_bparams.Ybsep(); ++ } ++ else ++ { ++ // no row overlap. So reset pic_data to 0. ++ memset( pic_data[0], 0, m_bparams.Yblen()*pic_data.LengthX()*sizeof(ValueType) ); ++ } + }//yblock + + if ( m_add_or_sub == SUBTRACT) +-- +1.7.0.4 + -- cgit v1.2.3