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

Lines Matching defs:sfb
112    INT sfbGrp,sfb;
118     for (sfb=0; sfb<maxSfbPerGroup; sfb++) {
119       if ((FIXP_DBL)sfbEnergyLdData[sfbGrp+sfb] > (FIXP_DBL)sfbThresholdLdData[sfbGrp+sfb]) {
120          sfbWidth = sfbOffset[sfbGrp+sfb+1] - sfbOffset[sfbGrp+sfb];
122          avgFormFactorLdData = ((-sfbEnergyLdData[sfbGrp+sfb]>>1) + (CalcLdInt(sfbWidth)>>1))>>1;
123          peChanData->sfbNLines[sfbGrp+sfb] =
124            (INT)CalcInvLdData( (sfbFormFactorLdData[sfbGrp+sfb] + formFacScaling) + avgFormFactorLdData);
127          peChanData->sfbNLines[sfbGrp+sfb] = 0;
134    formula for one sfb:
137    n: estimated number of lines in sfb,
151    INT sfbGrp,sfb;
161     for (sfb=0; sfb<maxSfbPerGroup; sfb++) {
162       if ((FIXP_DBL)sfbEnergyLdData[sfbGrp+sfb] > (FIXP_DBL)sfbThresholdLdData[sfbGrp+sfb]) {
163          logDataRatio = (FIXP_DBL)(sfbEnergyLdData[sfbGrp+sfb] - sfbThresholdLdData[sfbGrp+sfb]);
164          nLines = peChanData->sfbNLines[sfbGrp+sfb];
167             peChanData->sfbPe[sfbGrp+sfb] = fMultDiv2(logDataRatio, (FIXP_DBL)(nLines<<(LD_DATA_SHIFT+PE_CONSTPART_SHIFT+1)));
168             peChanData->sfbConstPart[sfbGrp+sfb] =
169                     fMultDiv2(sfbEnergyLdData[sfbGrp+sfb], (FIXP_DBL)(nLines<<(LD_DATA_SHIFT+PE_CONSTPART_SHIFT+1))); ;
174             peChanData->sfbPe[sfbGrp+sfb] =
177             peChanData->sfbConstPart[sfbGrp+sfb] =
178                      fMultDiv2(((FIXP_DBL)C2LdData + fMult(C3LdData,sfbEnergyLdData[sfbGrp+sfb])),
183          peChanData->sfbNActiveLines[sfbGrp+sfb] = nLines;
185       else if( isBook[sfb] ) {
187         INT delta = isScale[sfbGrp+sfb] - lastValIs;
188         lastValIs = isScale[sfbGrp+sfb];
189         peChanData->sfbPe[sfbGrp+sfb] = FDKaacEnc_bitCountScalefactorDelta(delta)<<PE_CONSTPART_SHIFT;
190         peChanData->sfbConstPart[sfbGrp+sfb] = 0;
191         peChanData->sfbNActiveLines[sfbGrp+sfb] = 0;
194          peChanData->sfbPe[sfbGrp+sfb] = 0;
195          peChanData->sfbConstPart[sfbGrp+sfb] = 0;
196          peChanData->sfbNActiveLines[sfbGrp+sfb] = 0;
199       peChanData->pe += peChanData->sfbPe[sfbGrp+sfb];
200       peChanData->constPart += peChanData->sfbConstPart[sfbGrp+sfb];
201       peChanData->nActiveLines += peChanData->sfbNActiveLines[sfbGrp+sfb];