AAC Decoder: support 6.1/7.1 decoded as 5.1

   - Add 6.1 and 7.1 channel support including downmixer. Per default the
     decoder creates a 5.1 channel output for all streams with more than six
     encoded channels.
     Modified file(s):
        libPCMutils/include/pcmutils_lib.h
        libPCMutils/src/pcmutils_lib.cpp
        libAACdec/include/aacdecoder_lib.h
        libAACdec/src/aac_rom.h
        libAACdec/src/aacdecoder.cpp
        libAACdec/src/aac_ram.cpp
        libAACdec/src/aacdec_drc.cpp
        libAACdec/src/aacdecoder_lib.cpp
        libAACdec/src/aac_rom.cpp
        libAACdec/src/aacdecoder.h
        libSBRdec/include/sbrdecoder.h
        libSBRdec/src/sbrdec_drc.h
        libSBRdec/src/sbrdecoder.cpp
        libSBRdec/src/sbr_ram.cpp
        libSBRdec/src/sbr_ram.h
        libMpegTPDec/include/tp_data.h
        libMpegTPDec/include/tpdec_lib.h
        libMpegTPDec/src/version
        libMpegTPDec/src/tpdec_asc.cpp
        libMpegTPEnc/include/tp_data.h
        libMpegTPEnc/src/version
        libSYS/include/FDK_audio.h
        libSYS/src/genericStds.cpp

   - Fix error concealment modules fade-out/in mechanism.
     Modified file(s):
        libAACdec/src/conceal.cpp

Bug 9428126

Change-Id: I3230bd2072314b730911cd7ec1740e290cb1d254

2 files changed, 27 insertions, 10 deletions

diff --git a/libMpegTPDec/include/tp_data.h b/libMpegTPDec/include/tp_data.h
index 5269858..c6e89b5 100644
--- a/libMpegTPDec/include/tp_data.h
+++ b/libMpegTPDec/include/tp_data.h
@@ -146,12 +146,15 @@ typedef struct
 
   UCHAR FrontElementIsCpe[PC_FSB_CHANNELS_MAX];
   UCHAR FrontElementTagSelect[PC_FSB_CHANNELS_MAX];
+  UCHAR FrontElementHeightInfo[PC_FSB_CHANNELS_MAX];
 
   UCHAR SideElementIsCpe[PC_FSB_CHANNELS_MAX];
   UCHAR SideElementTagSelect[PC_FSB_CHANNELS_MAX];
+  UCHAR SideElementHeightInfo[PC_FSB_CHANNELS_MAX];
 
   UCHAR BackElementIsCpe[PC_FSB_CHANNELS_MAX];
   UCHAR BackElementTagSelect[PC_FSB_CHANNELS_MAX];
+  UCHAR BackElementHeightInfo[PC_FSB_CHANNELS_MAX];
 
   UCHAR LfeElementTagSelect[PC_LFE_CHANNELS_MAX];
 
@@ -324,16 +327,23 @@ int getSamplingRateIndex( UINT samplingRate )
  */
 static inline int getNumberOfTotalChannels(int channelConfig)
 {
-  if (channelConfig > 0 && channelConfig < 8)
-    return (channelConfig == 7)?8:channelConfig;
-  else
+  switch (channelConfig) {
+  case 1: case 2: case 3:
+  case 4: case 5: case 6:
+    return channelConfig;
+  case 7: case 12: case 14:
+    return 8;
+  case 11:
+    return 7;
+  default:
     return 0;
+  }
 }
 
 static inline
 int getNumberOfEffectiveChannels(const int channelConfig)
-{
-  const int n[] = {0,1,2,3,4,5,5,7};
+{        /* index: 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 */
+  const int n[] = {0,1,2,3,4,5,5,7,0,0, 0, 6, 7, 0, 7, 0};
   return n[channelConfig];
 }
 
diff --git a/libMpegTPDec/include/tpdec_lib.h b/libMpegTPDec/include/tpdec_lib.h
index fb4c41d..2ad397d 100644
--- a/libMpegTPDec/include/tpdec_lib.h
+++ b/libMpegTPDec/include/tpdec_lib.h
@@ -151,6 +151,7 @@ typedef enum {
 #define PC_ASSOCDATA_MAX    8
 #define PC_CCEL_MAX         16 /* CC elements */
 #define PC_COMMENTLENGTH    256
+#define PC_NUM_HEIGHT_LAYER 3
 
 
 /*!
@@ -239,14 +240,20 @@ int CProgramConfig_LookupElement(
         );
 
 /**
- * \brief        Get table of elements in canonical order.
- * \param pPce   A valid program config structure.
- * \param table  An array where the element IDs are stored.
- * \return       Total element count including all SCE, CPE and LFE.
+ * \brief             Get table of elements in canonical order from a
+ *                    give program config field.
+ * \param pPce        A valid program config structure.
+ * \param table       An array where the element IDs are stored.
+ * \param elListSize  The length of the table array.
+ * \param pChMapIdx   Pointer to a field receiving the corresponding
+ *                    implicit channel configuration index of the given
+ *                    PCE. If none can be found it receives the value 0.
+ * \return            Total element count including all SCE, CPE and LFE.
  */
 int CProgramConfig_GetElementTable( const CProgramConfig *pPce,
                                     MP4_ELEMENT_ID  table[],
-                                    const INT elListSize );
+                                    const INT elListSize,
+                                    UCHAR *pChMapIdx );
 
 /**
  * \brief       Initialize a given AudioSpecificConfig structure.