WMSEDEC_SHIFT      79 libavcodec/j2kenc.c #define LAMBDA_SCALE (100000000LL << (WMSEDEC_SHIFT - 13))
WMSEDEC_SHIFT     848 libavcodec/j2kenc.c         if (((dd * dwt_norm) >> WMSEDEC_SHIFT) * dwt_norm >= dr * lambda)