diff options
Diffstat (limited to 'libAACenc/src/metadata_compressor.cpp')
| -rw-r--r-- | libAACenc/src/metadata_compressor.cpp | 39 |
1 files changed, 25 insertions, 14 deletions
diff --git a/libAACenc/src/metadata_compressor.cpp b/libAACenc/src/metadata_compressor.cpp index 852c8bc..876de57 100644 --- a/libAACenc/src/metadata_compressor.cpp +++ b/libAACenc/src/metadata_compressor.cpp @@ -2,7 +2,7 @@ /* ----------------------------------------------------------------------------------------------------------- Software License for The Fraunhofer FDK AAC Codec Library for Android -© Copyright 1995 - 2012 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. +© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. All rights reserved. 1. INTRODUCTION @@ -421,7 +421,7 @@ static FIXP_DBL tc2Coeff( result = f2Pow(-exponent, DFRACT_BITS-1-METADATA_FRACT_BITS, &e_res); /* result = 1.0 - exp(-1.0/((t) * (f))) */ - result = FL2FXCONST_DBL(1.0f) - scaleValue(result, e_res); + result = (FIXP_DBL)MAXVAL_DBL - scaleValue(result, e_res); return result; } @@ -539,14 +539,25 @@ INT FDK_DRC_Generator_Initialize( drcComp->channelIdx[RS] = channelMapping.elInfo[2].ChannelIndex[1]; break; case MODE_1_2_2_2_1: /* 7.1 ch */ - drcComp->channelIdx[L] = channelMapping.elInfo[1].ChannelIndex[0]; - drcComp->channelIdx[R] = channelMapping.elInfo[1].ChannelIndex[1]; - drcComp->channelIdx[C] = channelMapping.elInfo[0].ChannelIndex[0]; - drcComp->channelIdx[LFE] = channelMapping.elInfo[4].ChannelIndex[0]; - drcComp->channelIdx[LS] = channelMapping.elInfo[2].ChannelIndex[0]; - drcComp->channelIdx[RS] = channelMapping.elInfo[2].ChannelIndex[1]; - drcComp->channelIdx[LS2] = channelMapping.elInfo[3].ChannelIndex[0]; - drcComp->channelIdx[RS2] = channelMapping.elInfo[3].ChannelIndex[1]; + case MODE_7_1_FRONT_CENTER: + drcComp->channelIdx[L] = channelMapping.elInfo[2].ChannelIndex[0]; /* l */ + drcComp->channelIdx[R] = channelMapping.elInfo[2].ChannelIndex[1]; /* r */ + drcComp->channelIdx[C] = channelMapping.elInfo[0].ChannelIndex[0]; /* c */ + drcComp->channelIdx[LFE] = channelMapping.elInfo[4].ChannelIndex[0]; /* lfe */ + drcComp->channelIdx[LS] = channelMapping.elInfo[3].ChannelIndex[0]; /* ls */ + drcComp->channelIdx[RS] = channelMapping.elInfo[3].ChannelIndex[1]; /* rs */ + drcComp->channelIdx[LS2] = channelMapping.elInfo[1].ChannelIndex[0]; /* lc */ + drcComp->channelIdx[RS2] = channelMapping.elInfo[1].ChannelIndex[1]; /* rc */ + break; + case MODE_7_1_REAR_SURROUND: + drcComp->channelIdx[L] = channelMapping.elInfo[1].ChannelIndex[0]; /* l */ + drcComp->channelIdx[R] = channelMapping.elInfo[1].ChannelIndex[1]; /* r */ + drcComp->channelIdx[C] = channelMapping.elInfo[0].ChannelIndex[0]; /* c */ + drcComp->channelIdx[LFE] = channelMapping.elInfo[4].ChannelIndex[0]; /* lfe */ + drcComp->channelIdx[LS] = channelMapping.elInfo[3].ChannelIndex[0]; /* lrear */ + drcComp->channelIdx[RS] = channelMapping.elInfo[3].ChannelIndex[1]; /* rrear */ + drcComp->channelIdx[LS2] = channelMapping.elInfo[2].ChannelIndex[0]; /* ls */ + drcComp->channelIdx[RS2] = channelMapping.elInfo[2].ChannelIndex[1]; /* rs */ break; case MODE_1_1: case MODE_1_1_1_1: @@ -832,12 +843,12 @@ INT FDK_DRC_Generator_Calc( FIXP_DBL accu; /* drcComp->smoothLevel[i] = (1-alpha) * drcComp->smoothLevel[i] + alpha * level; */ - accu = fMult((FL2FXCONST_DBL(1.f)-alpha), drcComp->smoothLevel[i]); + accu = fMult(((FIXP_DBL)MAXVAL_DBL-alpha), drcComp->smoothLevel[i]); accu += fMult(alpha,level); drcComp->smoothLevel[i] = accu; /* drcComp->smoothGain[i] = (1-alpha) * drcComp->smoothGain[i] + alpha * gain; */ - accu = fMult((FL2FXCONST_DBL(1.f)-alpha), drcComp->smoothGain[i]); + accu = fMult(((FIXP_DBL)MAXVAL_DBL-alpha), drcComp->smoothGain[i]); accu += fMult(alpha,gain); drcComp->smoothGain[i] = accu; } @@ -941,7 +952,7 @@ INT FDK_DRC_Generator_Calc( if ((drcComp->channelIdx[LS] >= 0) && (drcComp->channelIdx[LS2] >= 0)) tmp = fMult(FL2FXCONST_DBL(0.707f), tmp); /* 7.1ch */ /*if ((drcComp->channelIdx[RS] >= 0) && (drcComp->channelIdx[RS2] >= 0)) tmp *=0.707f;*/ /* 7.1ch */ if (drcComp->channelIdx[S] >= 0) tmp += fMultDiv2(slev, fMult(FL2FXCONST_DBL(0.7f), (FIXP_PCM)pSamples[drcComp->channelIdx[S]]))>>(DOWNMIX_SHIFT-1); /* S */ - if (drcComp->channelIdx[C] >= 0) tmp += fMultDiv2(clev, (FIXP_PCM)pSamples[drcComp->channelIdx[C]])>>(DOWNMIX_SHIFT-1); /* C */ + if (drcComp->channelIdx[C] >= 0) tmp += fMult(clev, (FIXP_PCM)pSamples[drcComp->channelIdx[C]])>>(DOWNMIX_SHIFT-1); /* C (2*clev) */ tmp += (FX_PCM2FX_DBL((FIXP_PCM)pSamples[drcComp->channelIdx[L]])>>DOWNMIX_SHIFT); /* L */ tmp += (FX_PCM2FX_DBL((FIXP_PCM)pSamples[drcComp->channelIdx[R]])>>DOWNMIX_SHIFT); /* R */ @@ -973,7 +984,7 @@ INT FDK_DRC_Generator_Calc( * + 0.2f*2^(-METADATA_FRACT_BITS) + drcComp->smoothGain[i] */ peak[i] = fMult((FIXP_DBL)(10<<(METADATA_FRACT_BITS+LD_DATA_SHIFT)), fMult( FL2FX_DBL(2*0.30102999566398119521373889472449f), ld_peak)); - peak[i] += (FL2FX_DBL(0.2f)>>METADATA_INT_BITS); /* add a little bit headroom */ + peak[i] += (FL2FX_DBL(0.5f)>>METADATA_INT_BITS); /* add a little bit headroom */ peak[i] += drcComp->smoothGain[i]; } |