THPDFLoadedStreamFilterStatistics Record

ScannedStreamCount, FilteredStreamCount, UnsupportedStreamCount, and DecodeFailureCount track filter scan coverage

EncodedBytes and DecodedBytes total the bytes on each side of decoding, and DecodedStatisticsAvailable reports whether the decoded totals were collected

Families holds per-filter-family detail

THotPDF.GetLoadedStreamFilterStatistics · THPDFLoadedStreamFamilyStatistics