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Issue #862 : avoid invalid codeword from bad EC number estimate

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This commit is contained in:
Sean Owen 2020-06-03 11:50:03 -05:00
parent 9068f64eb5
commit c89470b2b0
1 changed files with 4 additions and 2 deletions
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2
core/src/main/java/com/google/zxing/pdf417/decoder/PDF417ScanningDecoder.java
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@ -244,10 +244,12 @@ public final class PDF417ScanningDecoder {
} }
barcodeMatrix01.setValue(calculatedNumberOfCodewords); barcodeMatrix01.setValue(calculatedNumberOfCodewords);
} else if (numberOfCodewords[0] != calculatedNumberOfCodewords) { } else if (numberOfCodewords[0] != calculatedNumberOfCodewords) {
if (calculatedNumberOfCodewords >= 1 && calculatedNumberOfCodewords <= PDF417Common.MAX_CODEWORDS_IN_BARCODE) {
// The calculated one is more reliable as it is derived from the row indicator columns // The calculated one is more reliable as it is derived from the row indicator columns
barcodeMatrix01.setValue(calculatedNumberOfCodewords); barcodeMatrix01.setValue(calculatedNumberOfCodewords);
} }
} }
}
private static DecoderResult createDecoderResult(DetectionResult detectionResult) throws FormatException, private static DecoderResult createDecoderResult(DetectionResult detectionResult) throws FormatException,
ChecksumException, NotFoundException { ChecksumException, NotFoundException {