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-rw-r--r--libMpegTPDec/src/tpdec_asc.cpp147
1 files changed, 143 insertions, 4 deletions
diff --git a/libMpegTPDec/src/tpdec_asc.cpp b/libMpegTPDec/src/tpdec_asc.cpp
index e6278d6..59ad58b 100644
--- a/libMpegTPDec/src/tpdec_asc.cpp
+++ b/libMpegTPDec/src/tpdec_asc.cpp
@@ -205,6 +205,145 @@ void CProgramConfig_Read(
pPce->isValid = 1;
}
+
+/*
+ * Compare two program configurations.
+ * Returns the result of the comparison:
+ * -1 - completely different
+ * 0 - completely equal
+ * 1 - different but same channel configuration
+ * 2 - different channel configuration but same number of channels
+ */
+int CProgramConfig_Compare ( const CProgramConfig * const pPce1,
+ const CProgramConfig * const pPce2 )
+{
+ int result = 0; /* Innocent until proven false. */
+
+ if (FDKmemcmp(pPce1, pPce2, sizeof(CProgramConfig)) != 0)
+ { /* Configurations are not completely different.
+ So look into details and analyse the channel configurations: */
+ result = -1;
+
+ if (pPce1->NumChannels == pPce2->NumChannels)
+ { /* Now the logic changes. We first assume to have the same channel configuration
+ and then prove if this assumption is true. */
+ result = 1;
+
+ /* Front channels */
+ if (pPce1->NumFrontChannelElements != pPce2->NumFrontChannelElements) {
+ result = 2; /* different number of front channel elements */
+ } else {
+ int el, numCh1 = 0, numCh2 = 0;
+ for (el = 0; el < pPce1->NumFrontChannelElements; el += 1) {
+ numCh1 += pPce1->FrontElementIsCpe[el] ? 2 : 1;
+ numCh2 += pPce2->FrontElementIsCpe[el] ? 2 : 1;
+ }
+ if (numCh1 != numCh2) {
+ result = 2; /* different number of front channels */
+ }
+ }
+ /* Side channels */
+ if (pPce1->NumSideChannelElements != pPce2->NumSideChannelElements) {
+ result = 2; /* different number of side channel elements */
+ } else {
+ int el, numCh1 = 0, numCh2 = 0;
+ for (el = 0; el < pPce1->NumSideChannelElements; el += 1) {
+ numCh1 += pPce1->SideElementIsCpe[el] ? 2 : 1;
+ numCh2 += pPce2->SideElementIsCpe[el] ? 2 : 1;
+ }
+ if (numCh1 != numCh2) {
+ result = 2; /* different number of side channels */
+ }
+ }
+ /* Back channels */
+ if (pPce1->NumBackChannelElements != pPce2->NumBackChannelElements) {
+ result = 2; /* different number of back channel elements */
+ } else {
+ int el, numCh1 = 0, numCh2 = 0;
+ for (el = 0; el < pPce1->NumBackChannelElements; el += 1) {
+ numCh1 += pPce1->BackElementIsCpe[el] ? 2 : 1;
+ numCh2 += pPce2->BackElementIsCpe[el] ? 2 : 1;
+ }
+ if (numCh1 != numCh2) {
+ result = 2; /* different number of back channels */
+ }
+ }
+ /* LFE channels */
+ if (pPce1->NumLfeChannelElements != pPce2->NumLfeChannelElements) {
+ result = 2; /* different number of lfe channels */
+ }
+ /* LFEs are always SCEs so we don't need to count the channels. */
+ }
+ }
+
+ return result;
+}
+
+void CProgramConfig_GetDefault( CProgramConfig *pPce,
+ const UINT channelConfig )
+{
+ FDK_ASSERT(pPce != NULL);
+
+ /* Init PCE */
+ CProgramConfig_Init(pPce);
+ pPce->Profile = 1; /* Set AAC LC because it is the only supported object type. */
+
+ switch (channelConfig) {
+ /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+ case 6: /* 3/0/2.1ch */
+ pPce->NumLfeChannelElements += 1;
+ pPce->NumChannels += 1;
+ case 5: /* 3/0/2.0ch */
+ case 4: /* 3/0/1.0ch */
+ pPce->NumBackChannelElements += 1;
+ pPce->BackElementIsCpe[0] = (channelConfig>4) ? 1 : 0;
+ pPce->NumChannels += (channelConfig>4) ? 2 : 1;
+ pPce->NumEffectiveChannels += (channelConfig>4) ? 2 : 1;
+ case 3: /* 3/0/0.0ch */
+ pPce->NumFrontChannelElements += 1;
+ pPce->FrontElementIsCpe[1] = 1;
+ pPce->NumChannels += 2;
+ pPce->NumEffectiveChannels += 2;
+ case 1: /* 1/0/0.0ch */
+ pPce->NumFrontChannelElements += 1;
+ pPce->FrontElementIsCpe[0] = 0;
+ pPce->NumChannels += 1;
+ pPce->NumEffectiveChannels += 1;
+ pPce->isValid = 1;
+ break;
+ /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+ case 2: /* 2/0/0.ch */
+ pPce->NumFrontChannelElements = 1;
+ pPce->FrontElementIsCpe[0] = 1;
+ pPce->NumChannels += 2;
+ pPce->NumEffectiveChannels += 2;
+ pPce->isValid = 1;
+ break;
+ /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+ default:
+ pPce->isValid = 0; /* To be explicit! */
+ break;
+ }
+
+ if (pPce->isValid) {
+ /* Create valid element instance tags */
+ int el, elTagSce = 0, elTagCpe = 0;
+
+ for (el = 0; el < pPce->NumFrontChannelElements; el += 1) {
+ pPce->FrontElementTagSelect[el] = (pPce->FrontElementIsCpe) ? elTagCpe++ : elTagSce++;
+ }
+ for (el = 0; el < pPce->NumSideChannelElements; el += 1) {
+ pPce->SideElementTagSelect[el] = (pPce->SideElementIsCpe) ? elTagCpe++ : elTagSce++;
+ }
+ for (el = 0; el < pPce->NumBackChannelElements; el += 1) {
+ pPce->BackElementTagSelect[el] = (pPce->BackElementIsCpe) ? elTagCpe++ : elTagSce++;
+ }
+ elTagSce = 0;
+ for (el = 0; el < pPce->NumLfeChannelElements; el += 1) {
+ pPce->LfeElementTagSelect[el] = elTagSce++;
+ }
+ }
+}
#endif /* TP_PCE_ENABLE */
/**
@@ -589,18 +728,18 @@ static INT ld_sbr_header( const CSAudioSpecificConfig *asc,
}
switch ( channelConfiguration ) {
+ case 7:
+ error |= cb->cbSbr(cb->cbSbrData, hBs, asc->m_samplingFrequency, asc->m_extensionSamplingFrequency, asc->m_samplesPerFrame, AOT_ER_AAC_ELD, ID_CPE, i++);
+ case 6:
case 5:
error |= cb->cbSbr(cb->cbSbrData, hBs, asc->m_samplingFrequency, asc->m_extensionSamplingFrequency, asc->m_samplesPerFrame, AOT_ER_AAC_ELD, ID_CPE, i++);
case 3:
error |= cb->cbSbr(cb->cbSbrData, hBs, asc->m_samplingFrequency, asc->m_extensionSamplingFrequency, asc->m_samplesPerFrame, AOT_ER_AAC_ELD, ID_CPE, i++);
break;
- case 7:
- error |= cb->cbSbr(cb->cbSbrData, hBs, asc->m_samplingFrequency, asc->m_extensionSamplingFrequency, asc->m_samplesPerFrame, AOT_ER_AAC_ELD, ID_SCE, i++);
- case 6:
- error |= cb->cbSbr(cb->cbSbrData, hBs, asc->m_samplingFrequency, asc->m_extensionSamplingFrequency, asc->m_samplesPerFrame, AOT_ER_AAC_ELD, ID_CPE, i++);
case 4:
error |= cb->cbSbr(cb->cbSbrData, hBs, asc->m_samplingFrequency, asc->m_extensionSamplingFrequency, asc->m_samplesPerFrame, AOT_ER_AAC_ELD, ID_CPE, i++);
+ error |= cb->cbSbr(cb->cbSbrData, hBs, asc->m_samplingFrequency, asc->m_extensionSamplingFrequency, asc->m_samplesPerFrame, AOT_ER_AAC_ELD, ID_SCE, i++);
break;
}