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Diffstat (limited to 'libAACenc/src/channel_map.cpp')
-rw-r--r--libAACenc/src/channel_map.cpp51
1 files changed, 29 insertions, 22 deletions
diff --git a/libAACenc/src/channel_map.cpp b/libAACenc/src/channel_map.cpp
index 352f48c..559a4ce 100644
--- a/libAACenc/src/channel_map.cpp
+++ b/libAACenc/src/channel_map.cpp
@@ -124,7 +124,7 @@ amm-info@iis.fraunhofer.de
typedef struct {
CHANNEL_MODE encoderMode;
- INT channel_assignment[/*(6)*/12];
+ INT channel_assignment[/*(8)*/12];
} CHANNEL_ASSIGNMENT_INFO_TAB;
@@ -139,6 +139,8 @@ static const CHANNEL_ASSIGNMENT_INFO_TAB assignmentInfoTabMpeg[] =
{ MODE_1_2_2, { 0, 1, 2, 3, 4,-1,-1,-1,-1,-1,-1,-1} }, /* 5ch */
{ MODE_1_2_2_1, { 0, 1, 2, 3, 4, 5,-1,-1,-1,-1,-1,-1} }, /* 5.1ch */
{ MODE_1_2_2_2_1, { 0, 1, 2, 3, 4, 5, 6, 7,-1,-1,-1,-1} }, /* 7.1ch */
+ { MODE_7_1_REAR_SURROUND, { 0, 1, 2, 3, 4, 5, 6, 7,-1,-1,-1,-1} }, /* 7.1ch */
+ { MODE_7_1_FRONT_CENTER, { 0, 1, 2, 3, 4, 5, 6, 7,-1,-1,-1,-1} } /* 7.1ch */
};
static const CHANNEL_ASSIGNMENT_INFO_TAB assignmentInfoTabWav[] =
@@ -150,7 +152,9 @@ static const CHANNEL_ASSIGNMENT_INFO_TAB assignmentInfoTabWav[] =
{ MODE_1_2_1, { 2, 0, 1, 3,-1,-1,-1,-1,-1,-1,-1,-1} }, /* 4ch */
{ MODE_1_2_2, { 2, 0, 1, 3, 4,-1,-1,-1,-1,-1,-1,-1} }, /* 5ch */
{ MODE_1_2_2_1, { 2, 0, 1, 4, 5, 3,-1,-1,-1,-1,-1,-1} }, /* 5.1ch */
- { MODE_1_2_2_2_1, { 2, 0, 1, 6, 7, 4, 5, 3,-1,-1,-1,-1} }, /* 7.1ch */
+ { MODE_1_2_2_2_1, { 2, 6, 7, 0, 1, 4, 5, 3,-1,-1,-1,-1} }, /* 7.1ch */
+ { MODE_7_1_REAR_SURROUND, { 2, 0, 1, 6, 7, 4, 5, 3,-1,-1,-1,-1} }, /* 7.1ch */
+ { MODE_7_1_FRONT_CENTER, { 2, 6, 7, 0, 1, 4, 5, 3,-1,-1,-1,-1} }, /* 7.1ch */
};
/* Channel mode configuration tab provides,
@@ -165,6 +169,8 @@ static const CHANNEL_MODE_CONFIG_TAB channelModeConfig[] =
{ MODE_1_2_2, 5, 5, 3 }, /* SCE,CPE,CPE */
{ MODE_1_2_2_1, 6, 5, 4 }, /* SCE,CPE,CPE,LFE */
{ MODE_1_2_2_2_1, 8, 7, 5 }, /* SCE,CPE,CPE,CPE,LFE */
+ { MODE_7_1_REAR_SURROUND, 8, 7, 5 },
+ { MODE_7_1_FRONT_CENTER, 8, 7, 5 },
};
#define MAX_MODES (sizeof(assignmentInfoTabWav)/sizeof(CHANNEL_ASSIGNMENT_INFO_TAB))
@@ -315,6 +321,8 @@ AAC_ENCODER_ERROR FDKaacEnc_InitChannelMapping(CHANNEL_MODE mode, CHANNEL_ORDER
break;
case MODE_1_2_2_2_1:
+ case MODE_7_1_REAR_SURROUND:
+ case MODE_7_1_FRONT_CENTER:
/* (7.1) sce + cpe + cpe + cpe + lfe */
FDKaacEnc_initElement(&cm->elInfo[0], ID_SCE, &count, mode, co, it_cnt, FL2FXCONST_DBL(0.18f));
FDKaacEnc_initElement(&cm->elInfo[1], ID_CPE, &count, mode, co, it_cnt, FL2FXCONST_DBL(0.26f));
@@ -322,14 +330,13 @@ AAC_ENCODER_ERROR FDKaacEnc_InitChannelMapping(CHANNEL_MODE mode, CHANNEL_ORDER
FDKaacEnc_initElement(&cm->elInfo[3], ID_CPE, &count, mode, co, it_cnt, FL2FXCONST_DBL(0.26f));
FDKaacEnc_initElement(&cm->elInfo[4], ID_LFE, &count, mode, co, it_cnt, FL2FXCONST_DBL(0.04f));
break;
-
default:
//*chMap=0;
return AAC_ENC_UNSUPPORTED_CHANNELCONFIG;
};
- FDK_ASSERT(cm->nElements<=(6));
+ FDK_ASSERT(cm->nElements<=(8));
return AAC_ENC_OK;
@@ -442,19 +449,18 @@ AAC_ENCODER_ERROR FDKaacEnc_InitElementBits(QC_STATE *hQC,
break;
}
-
- case MODE_1_2_2_2_1:{
- /* (7.1) sce + cpe + cpe + cpe + lfe */
- hQC->elementBits[0]->relativeBitsEl = cm->elInfo[0].relativeBits;
- hQC->elementBits[1]->relativeBitsEl = cm->elInfo[1].relativeBits;
- hQC->elementBits[2]->relativeBitsEl = cm->elInfo[2].relativeBits;
- hQC->elementBits[3]->relativeBitsEl = cm->elInfo[3].relativeBits;
- hQC->elementBits[4]->relativeBitsEl = cm->elInfo[4].relativeBits;
- FIXP_DBL sceRate = cm->elInfo[0].relativeBits;
- FIXP_DBL cpe1Rate = cm->elInfo[1].relativeBits;
- FIXP_DBL cpe2Rate = cm->elInfo[2].relativeBits;
- FIXP_DBL cpe3Rate = cm->elInfo[3].relativeBits;
- FIXP_DBL lfeRate = cm->elInfo[4].relativeBits;
+ case MODE_7_1_REAR_SURROUND:
+ case MODE_7_1_FRONT_CENTER:
+ case MODE_1_2_2_2_1: {
+ int cpe3Idx = 3;
+ int lfeIdx = 4;
+
+ /* (7.1) sce + cpe + cpe + cpe + lfe */
+ FIXP_DBL sceRate = hQC->elementBits[0]->relativeBitsEl = cm->elInfo[0].relativeBits;
+ FIXP_DBL cpe1Rate = hQC->elementBits[1]->relativeBitsEl = cm->elInfo[1].relativeBits;
+ FIXP_DBL cpe2Rate = hQC->elementBits[2]->relativeBitsEl = cm->elInfo[2].relativeBits;
+ FIXP_DBL cpe3Rate = hQC->elementBits[cpe3Idx]->relativeBitsEl = cm->elInfo[cpe3Idx].relativeBits;
+ FIXP_DBL lfeRate = hQC->elementBits[lfeIdx]->relativeBitsEl = cm->elInfo[lfeIdx].relativeBits;
int maxBitsTot = maxChannelBits * 7; /* LFE does not add to bit reservoir */
int sc = CountLeadingBits(fixMax(maxChannelBits,averageBitsTot));
@@ -466,17 +472,16 @@ AAC_ENCODER_ERROR FDKaacEnc_InitElementBits(QC_STATE *hQC,
hQC->elementBits[0]->chBitrateEl = fMult(sceRate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>sc_brTot;
hQC->elementBits[1]->chBitrateEl = fMult(cpe1Rate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>(sc_brTot+1);
hQC->elementBits[2]->chBitrateEl = fMult(cpe2Rate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>(sc_brTot+1);
- hQC->elementBits[3]->chBitrateEl = fMult(cpe3Rate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>(sc_brTot+1);
- hQC->elementBits[4]->chBitrateEl = fMult(lfeRate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>sc_brTot;
+ hQC->elementBits[cpe3Idx]->chBitrateEl = fMult(cpe3Rate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>(sc_brTot+1);
+ hQC->elementBits[lfeIdx]->chBitrateEl = fMult(lfeRate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>sc_brTot;
hQC->elementBits[0]->maxBitsEl = maxChannelBits;
hQC->elementBits[1]->maxBitsEl = 2*maxChannelBits;
hQC->elementBits[2]->maxBitsEl = 2*maxChannelBits;
- hQC->elementBits[3]->maxBitsEl = 2*maxChannelBits;
- hQC->elementBits[4]->maxBitsEl = maxLfeBits;
+ hQC->elementBits[cpe3Idx]->maxBitsEl = 2*maxChannelBits;
+ hQC->elementBits[lfeIdx]->maxBitsEl = maxLfeBits;
break;
}
-
default:
return AAC_ENC_UNSUPPORTED_CHANNELCONFIG;
}
@@ -518,6 +523,8 @@ ELEMENT_MODE FDKaacEnc_GetMonoStereoMode(const CHANNEL_MODE mode){
case MODE_1_2_2:
case MODE_1_2_2_1:
case MODE_1_2_2_2_1:
+ case MODE_7_1_REAR_SURROUND:
+ case MODE_7_1_FRONT_CENTER:
monoStereoSetting = EL_MODE_STEREO;
break;
default: /* error */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 03:32:20 +0000