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Fixed issue 2404

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- imdecode_() only creates a temporary file when needed.
- Use the string's empty() function to flag if the temporary file needs
to be deleted.
This commit is contained in:
Roy Reapor 2012-10-03 23:06:59 -07:00
parent aa400c5837
commit 5d9d4659ad
1 changed files with 4 additions and 5 deletions
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9
modules/highgui/src/loadsave.cpp
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@ -308,8 +308,7 @@ imdecode_( const Mat& buf, int flags, int hdrtype, Mat* mat=0 )
IplImage* image = 0;
CvMat *matrix = 0;
Mat temp, *data = &temp;
string filename = tempfile();
bool removeTempFile = false;
string filename;
ImageDecoder decoder = findDecoder(buf);
if( decoder.empty() )
@ -317,10 +316,10 @@ imdecode_( const Mat& buf, int flags, int hdrtype, Mat* mat=0 )
if( !decoder->setSource(buf) )
{
filename = tempfile();
FILE* f = fopen( filename.c_str(), "wb" );
if( !f )
return 0;
removeTempFile = true;
size_t bufSize = buf.cols*buf.rows*buf.elemSize();
fwrite( &buf.data[0], 1, bufSize, f );
fclose(f);
@ -329,7 +328,7 @@ imdecode_( const Mat& buf, int flags, int hdrtype, Mat* mat=0 )
if( !decoder->readHeader() )
{
if( removeTempFile )
if( !filename.empty() )
remove(filename.c_str());
return 0;
}
@ -371,7 +370,7 @@ imdecode_( const Mat& buf, int flags, int hdrtype, Mat* mat=0 )
}
bool code = decoder->readData( *data );
if( removeTempFile )
if( !filename.empty() )
remove(filename.c_str());
if( !code )