SBR/AAC encoder updates, code clean up

* SBR-Encoder

   - Prevent noise level overflow in noise floor detection.
   - Saturate threshold calculation in transient detection.
     Modified file(s):
        libSBRenc/src/nf_est.cpp
        libSBRenc/src/sbr_encoder.cpp
        libSBRenc/src/tran_det.cpp

* AAC-Encoder

   - Expand input data range of GetInvInt() function. There was an encoder
     assert observed in non-default bitrate configuration.
     Modified file(s):
        libAACenc/src/aacenc_lib.cpp
        libAACenc/src/intensity.cpp
        libFDK/include/fixpoint_math.h
        libFDK/src/FDK_core.cpp
        libFDK/src/FDK_tools_rom.cpp

   - Make sure that the encoder is stable with regard to very low audio bandwidth
     confguration parameter value.
   - Fix lowdelay blending for low audio bandwidth.
     Modified file(s):
        libAACenc/src/aacenc.cpp
        libAACenc/src/aacenc_lib.cpp
        libAACenc/src/adj_thr.cpp
        libAACenc/src/psy_configuration.cpp
        libAACenc/src/psy_main.cpp

   - Disable pseudo surround flag in case metadata matrix mixdown index is
     present in program config element.
     Modified file(s):
        libAACenc/src/aacenc_lib.cpp

   - Enable variable bitrate mode in encoder api.
   - Add AACENC_PEAK_BITRATE parameter to encoder api.
   - Add AACENC_AUDIOMUXVER parameter to encoder api.
     Modified file(s):
        libAACenc/include/aacenc_lib.h
        libAACenc/src/aacenc.cpp
        libAACenc/src/aacenc.h
        libAACenc/src/aacenc_lib.cpp
        libAACenc/src/qc_main.cpp
        libMpegTPEnc/src/tpenc_latm.cpp
        libMpegTPEnc/src/version

* FDK-Sources

   - Code clean up. Remove unneeded pseudo audio object types and transport types.
     Modified file(s):
        libAACdec/src/aacdecoder.cpp
        libAACdec/src/aacdecoder_lib.cpp
        libAACenc/include/aacenc_lib.h
        libAACenc/src/aacenc.cpp
        libAACenc/src/aacenc_lib.cpp
        libFDK/src/FDK_tools_rom.cpp
        libMpegTPDec/src/tpdec_lib.cpp
        libMpegTPDec/src/version
        libMpegTPEnc/src/tpenc_latm.cpp
        libMpegTPEnc/src/version
        libSBRdec/src/sbrdecoder.cpp
        libSBRenc/src/sbr_encoder.cpp
        libSYS/include/FDK_audio.h
        libSYS/src/genericStds.cpp

Change-Id: I807a53cb7f48c9ee7563cb8da1d0c52221576ca6

1 files changed, 13 insertions, 14 deletions

diff --git a/libMpegTPEnc/src/tpenc_latm.cpp b/libMpegTPEnc/src/tpenc_latm.cpp
index 58e51ef..f292019 100644
--- a/libMpegTPEnc/src/tpenc_latm.cpp
+++ b/libMpegTPEnc/src/tpenc_latm.cpp
@@ -2,7 +2,7 @@
 /* -----------------------------------------------------------------------------------------------------------
 Software License for The Fraunhofer FDK AAC Codec Library for Android
 
-© Copyright  1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
+© Copyright  1995 - 2015 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
   All rights reserved.
 
  1.    INTRODUCTION
@@ -296,6 +296,7 @@ CreateStreamMuxConfig(
 
   USHORT coreFrameOffset=0;
 
+  hAss->taraBufferFullness  = 0xFF;
   hAss->audioMuxVersionA    = 0; /* for future extensions */
   hAss->streamMuxConfigBits = 0;
 
@@ -339,13 +340,7 @@ CreateStreamMuxConfig(
             hAss->streamMuxConfigBits+=1;
           }
           if( (useSameConfig == 0) || (transLayer==0) ) {
-            UINT bits;
-
-            if ( hAss->audioMuxVersion == 1 ) {
-              FDKpushFor(hBs, 2); /* align to ASC, even if we do not know the length of the "ascLen" field yet */
-            }
-
-            bits = FDKgetValidBits( hBs );
+            const UINT alignAnchor = FDKgetValidBits(hBs);
 
             transportEnc_writeASC(
                     hBs,
@@ -353,19 +348,24 @@ CreateStreamMuxConfig(
                     cb
                     );
 
-            bits = FDKgetValidBits( hBs ) - bits;
-
             if ( hAss->audioMuxVersion == 1 ) {
-              FDKpushBack(hBs, bits+2);
-              hAss->streamMuxConfigBits += transportEnc_LatmWriteValue( hBs, bits );
+              UINT ascLen = transportEnc_LatmWriteValue(hBs, 0);
+              FDKbyteAlign(hBs, alignAnchor);
+              ascLen = FDKgetValidBits(hBs) - alignAnchor - ascLen;
+              FDKpushBack(hBs, FDKgetValidBits(hBs) - alignAnchor);
+
+              transportEnc_LatmWriteValue(hBs, ascLen);
+
               transportEnc_writeASC(
                       hBs,
                       hAss->config[prog][layer],
                       cb
                       );
+
+              FDKbyteAlign(hBs, alignAnchor); /* asc length fillbits */
             }
 
-            hAss->streamMuxConfigBits += bits; /* add asc length to smc summary */
+            hAss->streamMuxConfigBits += FDKgetValidBits(hBs) - alignAnchor; /* add asc length to smc summary */
           }
           transLayer++;
 
@@ -384,7 +384,6 @@ CreateStreamMuxConfig(
           case AOT_ER_AAC_LD     :
           case AOT_ER_AAC_ELD    :
           case AOT_USAC:
-          case AOT_RSVD50:
             p_linfo->frameLengthType = 0;
 
             FDKwriteBits( hBs, p_linfo->frameLengthType, 3 );                        /* frameLengthType */