SampleMap::iterator SampleMap::findSyncSampleAfterPresentationTime(const MediaTime& time, const MediaTime& threshold)
{
iterator currentSamplePTS = findSampleAfterPresentationTime(time);
if (currentSamplePTS == presentationEnd())
return decodeEnd();
iterator currentSampleDTS = findSampleWithDecodeTime(currentSamplePTS->second->decodeTime());
MediaTime upperBound = time + threshold;
iterator foundSample = std::find_if(currentSampleDTS, decodeEnd(), SampleIsRandomAccess());
if (foundSample == decodeEnd())
return decodeEnd();
if (foundSample->second->presentationTime() > upperBound)
return decodeEnd();
return foundSample;
}
SampleMap::reverse_iterator SampleMap::reverseFindSampleWithDecodeTime(const MediaTime& time)
{
SampleMap::iterator found = findSampleWithDecodeTime(time);
if (found == decodeEnd())
return reverseDecodeEnd();
return --reverse_iterator(found);
}
Ref<Result> UPCEANReader::decodeRow(int rowNumber, Ref<BitArray> row, int startGuardRange[]){
std::string tmpResultString;
std::string& tmpResultStringRef = tmpResultString;
int endStart;
try {
endStart = decodeMiddle(row, startGuardRange, 2 /*reference findGuardPattern*/ , tmpResultStringRef);
} catch (ReaderException re) {
if (startGuardRange!=NULL) {
delete [] startGuardRange;
startGuardRange = NULL;
}
throw re;
}
int* endRange = decodeEnd(row, endStart);
#pragma mark QuietZone needs some change
// Make sure there is a quiet zone at least as big as the end pattern after the barcode. The
// spec might want more whitespace, but in practice this is the maximum we can count on.
// int end = endRange[1];
// int quietEnd = end + (end - endRange[0]);
// if (quietEnd >= row->getSize() || !row->isRange(end, quietEnd, false)) {
// throw ReaderException("Quiet zone asserrt fail.");
// }
if (!checkChecksum(tmpResultString)) {
if (startGuardRange!=NULL) {
delete [] startGuardRange;
startGuardRange = NULL;
}
if (endRange!=NULL) {
delete [] endRange;
endRange = NULL;
}
throw ReaderException("Checksum fail.");
}
Ref<String> resultString(new String(tmpResultString));
float left = (float) (startGuardRange[1] + startGuardRange[0]) / 2.0f;
float right = (float) (endRange[1] + endRange[0]) / 2.0f;
std::vector< Ref<ResultPoint> > resultPoints(2);
Ref<OneDResultPoint> resultPoint1(new OneDResultPoint(left, (float) rowNumber));
Ref<OneDResultPoint> resultPoint2(new OneDResultPoint(right, (float) rowNumber));
resultPoints[0] = resultPoint1;
resultPoints[1] = resultPoint2;
ArrayRef<unsigned char> resultBytes(1);
if (startGuardRange!=NULL) {
delete [] startGuardRange;
startGuardRange = NULL;
}
if (endRange!=NULL) {
delete [] endRange;
endRange = NULL;
}
Ref<Result> res(new Result(resultString, resultBytes, resultPoints, getBarcodeFormat()));
return res;
}
SampleMap::iterator SampleMap::findSyncSampleAfterDecodeIterator(iterator currentSampleDTS)
{
return std::find_if(currentSampleDTS, decodeEnd(), SampleIsRandomAccess());
}