Encoder downsampled SBR

* AAC-Encoder

   - Introduce optional AACENC_SBR_RATIO encoder API parameter to configure
     dualrate or downsampled SBR explicitely. ELD makes use of downsampled SBR
     in default configuration.
     Modified file(s):
        documentation\aacEncoder.pdf
        libAACenc\include\aacenc_lib.h
        libAACenc\src\aacenc.h
        libAACenc\src\aacenc_lib.cpp

* SBR-Encoder

   - Implement downsampled SBR feature.
   - Revise sbr tuning parameter selection.
     Modified file(s):
        libSBRenc\include\sbr_encoder.h
        libSBRenc\src\bit_sbr.h
        libSBRenc\src\env_est.cpp
        libSBRenc\src\mh_det.cpp
        libSBRenc\src\nf_est.cpp
        libSBRenc\src\ps_main.cpp
        libSBRenc\src\sbr.h
        libSBRenc\src\sbr_def.h
        libSBRenc\src\sbr_encoder.cpp
        libSBRenc\src\sbr_rom.cpp
        libSBRenc\src\sbr_rom.h
        libSBRenc\src\sbrenc_freq_sca.cpp
        libSBRenc\src\sbrenc_freq_sca.h
        libSBRenc\src\ton_corr.cpp

Bug 9428126

Change-Id: I731720a10829272acaaf70b84525df00a09ff3d2

1 files changed, 34 insertions, 26 deletions

diff --git a/libSBRenc/src/sbrenc_freq_sca.h b/libSBRenc/src/sbrenc_freq_sca.h
index 51ed688..6f2bb84 100644
--- a/libSBRenc/src/sbrenc_freq_sca.h
+++ b/libSBRenc/src/sbrenc_freq_sca.h
@@ -96,34 +96,42 @@ amm-info@iis.fraunhofer.de
 
 
 INT
-FDKsbrEnc_UpdateFreqScale(UCHAR *v_k_master, INT *h_num_bands,
-                const INT k0, const INT k2,
-                const INT freq_scale,
-                const INT alter_scale);
+FDKsbrEnc_UpdateFreqScale(
+        UCHAR *v_k_master,
+        INT   *h_num_bands,
+        const  INT k0,
+        const  INT k2,
+        const  INT freq_scale,
+        const  INT alter_scale
+        );
 
 INT
-FDKsbrEnc_UpdateHiRes(UCHAR *h_hires,
-            INT *num_hires,
-            UCHAR *v_k_master,
-            INT num_master ,
-            INT *xover_band,
-            SR_MODE drOrSr,
-            INT noQMFChannels);
-
-void  FDKsbrEnc_UpdateLoRes(UCHAR * v_lores,
-                  INT *num_lores,
-                  UCHAR * v_hires,
-                  INT num_hires);
+FDKsbrEnc_UpdateHiRes(
+        UCHAR *h_hires,
+        INT   *num_hires,
+        UCHAR *v_k_master,
+        INT    num_master,
+        INT   *xover_band
+        );
+
+void  FDKsbrEnc_UpdateLoRes(
+        UCHAR *v_lores,
+        INT   *num_lores,
+        UCHAR *v_hires,
+        INT    num_hires
+        );
 
 INT
-FDKsbrEnc_FindStartAndStopBand(const INT samplingFreq,
-                     const INT noChannels,
-                     const INT startFreq,
-                     const INT stop_freq,
-                     const SR_MODE sampleRateMode,
-                     INT *k0,
-                     INT *k2);
-
-INT FDKsbrEnc_getSbrStartFreqRAW (INT startFreq, INT QMFbands, INT fs );
-INT FDKsbrEnc_getSbrStopFreqRAW  (INT stopFreq, INT QMFbands, INT fs);
+FDKsbrEnc_FindStartAndStopBand(
+        const INT srSbr,
+        const INT srCore,
+        const INT noChannels,
+        const INT startFreq,
+        const INT stop_freq,
+        INT *k0,
+        INT *k2
+        );
+
+INT FDKsbrEnc_getSbrStartFreqRAW (INT startFreq, INT fsCore);
+INT FDKsbrEnc_getSbrStopFreqRAW  (INT stopFreq, INT fsCore);
 #endif