generic-library/opencv
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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; IplImage* image = 0;
CvMat *matrix = 0; CvMat *matrix = 0;
Mat temp, *data = &temp; Mat temp, *data = &temp;
string filename = tempfile(); string filename;
bool removeTempFile = false;
ImageDecoder decoder = findDecoder(buf); ImageDecoder decoder = findDecoder(buf);
if( decoder.empty() ) if( decoder.empty() )
@ -317,10 +316,10 @@ imdecode_( const Mat& buf, int flags, int hdrtype, Mat* mat=0 )
if( !decoder->setSource(buf) ) if( !decoder->setSource(buf) )
{ {
filename = tempfile();
FILE* f = fopen( filename.c_str(), "wb" ); FILE* f = fopen( filename.c_str(), "wb" );
if( !f ) if( !f )
return 0; return 0;
removeTempFile = true;
size_t bufSize = buf.cols*buf.rows*buf.elemSize(); size_t bufSize = buf.cols*buf.rows*buf.elemSize();
fwrite( &buf.data[0], 1, bufSize, f ); fwrite( &buf.data[0], 1, bufSize, f );
fclose(f); fclose(f);
@ -329,7 +328,7 @@ imdecode_( const Mat& buf, int flags, int hdrtype, Mat* mat=0 )
if( !decoder->readHeader() ) if( !decoder->readHeader() )
{ {
if( removeTempFile ) if( !filename.empty() )
remove(filename.c_str()); remove(filename.c_str());
return 0; return 0;
} }
@ -371,7 +370,7 @@ imdecode_( const Mat& buf, int flags, int hdrtype, Mat* mat=0 )
} }
bool code = decoder->readData( *data ); bool code = decoder->readData( *data );
if( removeTempFile ) if( !filename.empty() )
remove(filename.c_str()); remove(filename.c_str());
if( !code ) if( !code )