AAC Encoder low delay quality

* AAC-Encoder

   - Revise bit distribution for lowdelay configuration to improve encoder
     audio quality.
   - Adjust lowdelay bitreservoir for low bitreservoir configuration.
     Modified file(s):
        libAACenc\src\aacEnc_ram.cpp
        libAACenc\src\aacenc.cpp
        libAACenc\src\aacenc_lib.cpp
        libAACenc\src\aacenc_tns.cpp
        libAACenc\src\adj_thr.cpp
        libAACenc\src\adj_thr.h
        libAACenc\src\block_switch.cpp
        libAACenc\src\block_switch.h
        libAACenc\src\interface.h
        libAACenc\src\psy_main.cpp
        libAACenc\src\qc_data.h
        libAACenc\src\qc_main.cpp

* FDK-Library

   - Increase the accuracy in CalcInvLdData() calculation which improves the
     encoder audio quality.
     Modified file(s):
        libFDK\src\fixpoint_math.cpp

Bug 9428126

Change-Id: I302d7f4c3aeccf79e1b85f20e18a31e6e2b10544

1 files changed, 2 insertions, 2 deletions

diff --git a/libAACenc/src/aacenc_lib.cpp b/libAACenc/src/aacenc_lib.cpp
index a256f05..4d5984d 100644
--- a/libAACenc/src/aacenc_lib.cpp
+++ b/libAACenc/src/aacenc_lib.cpp
@@ -98,7 +98,7 @@ amm-info@iis.fraunhofer.de
 /* Encoder library info */
 #define AACENCODER_LIB_VL0 3
 #define AACENCODER_LIB_VL1 4
-#define AACENCODER_LIB_VL2 7
+#define AACENCODER_LIB_VL2 8
 #define AACENCODER_LIB_TITLE "AAC Encoder"
 #define AACENCODER_LIB_BUILD_DATE __DATE__
 #define AACENCODER_LIB_BUILD_TIME __TIME__
@@ -689,7 +689,7 @@ AACENC_ERROR FDKaacEnc_AdjustEncSettings(HANDLE_AACENCODER hAacEncoder,
           hAacConfig->bitrateMode = 0;
         }
         if (config->userBitrateMode==0) {
-          hAacConfig->bitreservoir = 50*config->nChannels; /* default, reduced bitreservoir */
+          hAacConfig->bitreservoir = 100*config->nChannels; /* default, reduced bitreservoir */
         }
         if (hAacConfig->bitrateMode!=0) {
           return AACENC_INVALID_CONFIG;