OUT_SHIFT         755 libavcodec/mpegaudiodec.c     sum1 = (*sum) >> OUT_SHIFT;
OUT_SHIFT         756 libavcodec/mpegaudiodec.c     *sum &= (1<<OUT_SHIFT)-1;
OUT_SHIFT         777 libavcodec/mpegaudiodec.c     sum1 = (int)((*sum) >> OUT_SHIFT);
OUT_SHIFT         778 libavcodec/mpegaudiodec.c     *sum &= (1<<OUT_SHIFT)-1;