Impala Documentation

Array2dVec3UInt8* Impala::Application::VideoExcel::TableDataSourceSqliteDb::RetrieveImageFromDb ( int index ) [inline]

Definition at line 105 of file TableDataSourceSqliteDb.h.

References ILOG_WARN, mSqlDb, and Impala::Core::Array::ReadJpgFromMemory().

00106     {
00107         CppSQLite3Buffer b;
00108         b.format("select data from cache where idx = '%d';", index);
00109         CppSQLite3Query q = mSqlDb->execQuery(b);
00110 
00111         //ILOG_DEBUG("ASPECT = " << mAspectRatio << " --> w=" << mNormW << " h=" << mNormH);
00112         if (q.fieldIsNull("data"))
00113         {
00114             ILOG_WARN("no thumbnail found for " << index);
00115             return 0;
00116         }
00117 
00118         int length;
00119         const unsigned char* image= q.getBlobField("data", length);
00120 
00121         Core::Array::Array2dVec3UInt8* datastream = 0;
00122         ReadJpgFromMemory(datastream, (char*)image, length);
00123         return datastream;
00124     }

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