Cross Reference: /external/aac/libAACenc/src/metadata

Lines Matching refs:peak
184     FIXP_DBL     prevPeak[2];                /*!< max peak of previous block (stereo/mono)*/
660     FIXP_DBL peak[2];
875     /* find peak level */
876     peak[0] = peak[1] = FL2FXCONST_DBL(0.f);
886         peak[0] = fixMax(peak[0], FX_PCM2FX_DBL(maxSample)>>DOWNMIX_SHIFT);
902             peak[0] = fixMax(peak[0], fixp_abs(tmp));
915             peak[0] = fixMax(peak[0], fixp_abs(tmp));
929             peak[0] = fixMax(peak[0], fixp_abs(tmp));
940             peak[0] = fixMax(peak[0], fixp_abs(tmp));
943         peak[1] = fixMax(peak[0], peak[1]);
959             peak[1] = fixMax(peak[1], fixp_abs(tmp));
965       drcComp->prevPeak[i] = peak[i];
966       peak[i] = fixMax(peak[i], tmp);
971       /* descaled peak in ld64 representation */
972       FIXP_DBL ld_peak = CalcLdData(peak[i]) + (FIXP_DBL)((LONG)DOWNMIX_SHIFT<<(DFRACT_BITS-1-LD_DATA_SHIFT));
974       /* if (peak < 1e-6) level = 1e-6f; */
977       /* peak[i] = 20 * log(peak[i])/log(10) + 0.2f + (drcComp->smoothGain[i]*2^METADATA_FRACT_BITS)
978        * peak[i] = 20 * log(2)/log(10) * ld(peak[i]) + 0.2f + (drcComp->smoothGain[i]*2^METADATA_FRACT_BITS)
979        * peak[i] = 10 * 2*0.30102999566398119521373889472449 * ld(peak[i]) + 0.2f + (drcComp->smoothGain[i]*2^METADATA_FRACT_BITS)
982        * peak[i] = (10 * 2*0.30102999566398119521373889472449 * ld64(peak[i]) * 64 + 0.2f + (drcComp->smoothGain[i]*2^METADATA_FRACT_BITS))*2^(-METADATA_FRACT_BITS)
983        * peak[i] = 10*2^(METADATA_FRACT_BITS+LD_DATA_SHIFT) * 2*0.30102999566398119521373889472449 * ld64(peak[i])
986       peak[i] = fMult((FIXP_DBL)(10<<(METADATA_FRACT_BITS+LD_DATA_SHIFT)), fMult( FL2FX_DBL(2*0.30102999566398119521373889472449f), ld_peak));
987       peak[i] += (FL2FX_DBL(0.5f)>>METADATA_INT_BITS);           /* add a little bit headroom */
988       peak[i] +=  drcComp->smoothGain[i];
991     /* peak -= dialnorm + 31; */  /* this is Dolby style only */
992     peak[0] -= (FIXP_DBL)((dialnorm-drc_TargetRefLevel)<<(METADATA_FRACT_BITS-16)); /* peak[0] -= dialnorm - drc_TargetRefLevel */
994     /* peak += 11; */   /* this is Dolby style only */      /* RF mode output is 11dB higher */
995     /*peak += comp_TargetRefLevel - drc_TargetRefLevel;*/
996     peak[1] -= (FIXP_DBL)((dialnorm-comp_TargetRefLevel)<<(METADATA_FRACT_BITS-16)); /* peak[1] -= dialnorm - comp_TargetRefLevel */
1000     drcComp->limGain[0] = fixMin(drcComp->limGain[0], -peak[0]);
1003     drcComp->limGain[1] = fixMin(drcComp->limGain[1], -peak[1]);