Fraunhofer AAC codec.

License boilerplate update to follow.

Change-Id: I2810460c11a58b6d148d84673cc031f3685e79b5

1 files changed, 120 insertions, 0 deletions

diff --git a/libAACenc/src/bitenc.h b/libAACenc/src/bitenc.h
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+/******************************** MPEG Audio Encoder **************************
+
+                     (C) Copyright Fraunhofer IIS (1999)
+                               All Rights Reserved
+
+    Please be advised that this software and/or program delivery is
+    Confidential Information of Fraunhofer and subject to and covered by the
+
+    Fraunhofer IIS Software Evaluation Agreement
+    between Google Inc. and  Fraunhofer
+    effective and in full force since March 1, 2012.
+
+    You may use this software and/or program only under the terms and
+    conditions described in the above mentioned Fraunhofer IIS Software
+    Evaluation Agreement. Any other and/or further use requires a separate agreement.
+
+
+   This software and/or program is protected by copyright law and international
+   treaties. Any reproduction or distribution of this software and/or program,
+   or any portion of it, may result in severe civil and criminal penalties, and
+   will be prosecuted to the maximum extent possible under law.
+
+   $Id$
+   Initial author:       M. Werner
+   contents/description: Bitstream encoder
+
+******************************************************************************/
+#ifndef _BITENC_H
+#define _BITENC_H
+
+
+#include "qc_data.h"
+#include "aacenc_tns.h"
+#include "channel_map.h"
+#include "interface.h"    /* obsolete, when PSY_OUT is thrown out of the WritBS-call! */
+#include "FDK_audio.h"
+#include "aacenc.h"
+
+#include "tpenc_lib.h"
+
+typedef enum{
+  MAX_ENCODER_CHANNELS  = 9,
+  MAX_BLOCK_TYPES       = 4,
+  MAX_AAC_LAYERS        = 9,
+  MAX_LAYERS            = MAX_AAC_LAYERS  , /* only one core layer if present */
+  FIRST_LAY             = 1   /* default layer number for AAC nonscalable */
+} _MAX_CONST;
+
+#define BUFFER_MX_HUFFCB_SIZE (32*sizeof(INT))  /* our FDK_bitbuffer needs size of power 2 */
+
+#define EL_ID_BITS  ( 3 )
+
+
+/**
+ * \brief Arbitrary order bitstream writer. This function can either assemble a bit stream
+ *        and write into the bit buffer of hTpEnc or calculate the number of static bits (signal independent)
+ *        TpEnc handle must be NULL in this case. Or also Calculate the minimum possible number of
+ *        static bits which by disabling all tools e.g. MS, TNS and sbfCnt=0. The minCnt parameter
+ *        has to be 1 in this latter case.
+ * \param hTpEnc Transport encoder handle. If NULL, the number of static bits will be returned into
+ *        *pBitDemand.
+ * \param pElInfo
+ * \param qcOutChannel
+ * \param hReorderInfo
+ * \param psyOutElement
+ * \param psyOutChannel
+ * \param syntaxFlags Bit stream syntax flags as defined in FDK_audio.h (Audio Codec flags).
+ * \param aot
+ * \param epConfig
+ * \param pBitDemand Pointer to an int where the amount of bits is returned into. The returned value
+ *        depends on if hTpEnc is NULL and minCnt.
+ * \param minCnt If non-zero the value returned into *pBitDemand is the absolute minimum required amount of
+ *        static bits in order to write a valid bit stream.
+ * \return AAC_ENCODER_ERROR error code
+ */
+AAC_ENCODER_ERROR FDKaacEnc_ChannelElementWrite( HANDLE_TRANSPORTENC  hTpEnc,
+                                                 ELEMENT_INFO        *pElInfo,
+                                                 QC_OUT_CHANNEL      *qcOutChannel[(2)],
+                                                 PSY_OUT_ELEMENT     *psyOutElement,
+                                                 PSY_OUT_CHANNEL     *psyOutChannel[(2)],
+                                                 UINT                 syntaxFlags,
+                                                 AUDIO_OBJECT_TYPE    aot,
+                                                 SCHAR                epConfig,
+                                                 INT                 *pBitDemand,
+                                                 UCHAR                minCnt
+                                               );
+/**
+ * \brief Write bit stream or account static bits
+ * \param hTpEnc transport encoder handle. If NULL, the function will
+ *        not write any bit stream data but only count the amount
+ *        of static (signal independent) bits
+ * \param channelMapping Channel mapping info
+ * \param qcOut
+ * \param psyOut
+ * \param qcKernel
+ * \param hBSE
+ * \param aot Audio Object Type being encoded
+ * \param syntaxFlags Flags indicating format specific detail
+ * \param epConfig Error protection config
+ */
+AAC_ENCODER_ERROR FDKaacEnc_WriteBitstream (HANDLE_TRANSPORTENC hTpEnc,
+                                            CHANNEL_MAPPING *channelMapping,
+                                            QC_OUT* qcOut,
+                                            PSY_OUT* psyOut,
+                                            QC_STATE* qcKernel,
+                                            AUDIO_OBJECT_TYPE  aot,
+                                            UINT  syntaxFlags,
+                                            SCHAR  epConfig
+                                           );
+
+INT FDKaacEnc_writeExtensionData( HANDLE_TRANSPORTENC  hTpEnc,
+                                  QC_OUT_EXTENSION    *pExtension,
+                                  INT                  elInstanceTag,
+                                  UINT                 alignAnchor,
+                                  UINT                 syntaxFlags,
+                                  AUDIO_OBJECT_TYPE    aot,
+                                  SCHAR                epConfig
+                                );
+
+#endif /* _BITENC_H */