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Prevent imread from illegal memory access (Bug #2602)

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The change is based on pull request #211.
This commit is contained in:
Andrey Kamaev 2012-12-06 19:42:17 +04:00
parent 7852b68c20
commit 1821d21f5b
1 changed files with 9 additions and 5 deletions
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14
modules/highgui/src/grfmt_jpeg.cpp
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@ -229,12 +229,16 @@ bool JpegDecoder::readHeader()
if( m_f ) if( m_f )
jpeg_stdio_src( &state->cinfo, m_f ); jpeg_stdio_src( &state->cinfo, m_f );
} }
jpeg_read_header( &state->cinfo, TRUE );
m_width = state->cinfo.image_width; if (state->cinfo.src != 0)
m_height = state->cinfo.image_height; {
m_type = state->cinfo.num_components > 1 ? CV_8UC3 : CV_8UC1; jpeg_read_header( &state->cinfo, TRUE );
result = true;
m_width = state->cinfo.image_width;
m_height = state->cinfo.image_height;
m_type = state->cinfo.num_components > 1 ? CV_8UC3 : CV_8UC1;
result = true;
}
} }
if( !result ) if( !result )