SBR/AAC encoder updates, code clean up

am: e1c78ed

* commit 'e1c78ed73faa51f2c7fcb0c4a17a92be9cc747f5':
  SBR/AAC encoder updates, code clean up

Change-Id: I908adc47823de593c3e258c67f360da9321780f5

1 files changed, 33 insertions, 1 deletions

diff --git a/libAACenc/src/aacenc.h b/libAACenc/src/aacenc.h
index 87fc3e8..61520de 100644
--- a/libAACenc/src/aacenc.h
+++ b/libAACenc/src/aacenc.h
@@ -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
@@ -204,6 +204,8 @@ struct AACENC_CONFIG {
   INT   maxBitsPerFrame;        /* maximum number of bits in AU */
   INT   bitreservoir;           /* size of bitreservoir */
 
+  INT   audioMuxVersion;        /* audio mux version in loas/latm transport format */
+
   UINT  sbrRatio;               /* sbr sampling rate ratio: dual- or single-rate */
 
   UCHAR useTns;                 /* flag: use temporal noise shaping */
@@ -223,6 +225,36 @@ typedef struct {
 typedef struct AAC_ENC *HANDLE_AAC_ENC;
 
 /**
+ * \brief Calculate framesize in bits for given bit rate, frame length and sampling rate.
+ *
+ * \param bitRate               Ttarget bitrate in bits per second.
+ * \param frameLength           Number of audio samples in one frame.
+ * \param samplingRate          Sampling rate in Hz.
+ *
+ * \return                      Framesize in bits per frame.
+*/
+INT FDKaacEnc_CalcBitsPerFrame(
+        const INT bitRate,
+        const INT frameLength,
+        const INT samplingRate
+        );
+
+/**
+ * \brief Calculate bitrate in bits per second for given framesize, frame length and sampling rate.
+ *
+ * \param bitsPerFrame          Framesize in bits per frame.
+ * \param frameLength           Number of audio samples in one frame.
+ * \param samplingRate          Sampling rate in Hz.
+ *
+ * \return                      Bitrate in bits per second.
+*/
+INT FDKaacEnc_CalcBitrate(
+        const INT bitsPerFrame,
+        const INT frameLength,
+        const INT samplingRate
+        );
+
+/**
  * \brief Limit given bit rate to a valid value
  * \param hTpEnc transport encoder handle
  * \param coreSamplingRate the sample rate to be used for the AAC encoder