Fraunhofer AAC codec.

License boilerplate update to follow.

Change-Id: I2810460c11a58b6d148d84673cc031f3685e79b5

1 files changed, 234 insertions, 0 deletions

diff --git a/libMpegTPEnc/include/tpenc_lib.h b/libMpegTPEnc/include/tpenc_lib.h
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+/**************************  MPEG-4 Transport Encoder  ************************
+
+                        (C) Copyright Fraunhofer IIS (2006)
+                               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.
+
+
+   $Id$
+   Author(s): Manuel Jander
+   Description: MPEG Transport encode
+
+   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.
+
+******************************************************************************/
+
+#ifndef __TPENC_LIB_H__
+#define __TPENC_LIB_H__
+
+#include "tp_data.h"
+#include "FDK_bitstream.h"
+
+#define TRANSPORTENC_INBUF_SIZE 8192
+
+typedef enum {
+  TRANSPORTENC_OK = 0,                            /*!< All fine.                                                */
+  TRANSPORTENC_NO_MEM,                            /*!< Out of memory.                                           */
+  TRANSPORTENC_UNKOWN_ERROR = 1,                  /*!< Unknown error (embarrasing).                             */
+  TRANSPORTENC_INVALID_PARAMETER,                 /*!< An invalid parameter was passed to a function .          */
+  TRANSPORTENC_PARSE_ERROR,                       /*!< Bitstream data contained inconsistencies (wrong syntax). */
+  TRANSPORTENC_UNSUPPORTED_FORMAT,                /*!< Unsupported transport format.                            */
+  TRANSPORTENC_NOT_ENOUGH_BITS,                   /*!< Out of bits. Provide more bits and try again.            */
+
+  TRANSPORTENC_INVALID_CONFIG,                    /*!< Error in configuration.                                  */
+  TRANSPORTENC_LATM_INVALID_NR_OF_SUBFRAMES,      /*!< LATM: number of subframes out of range.                  */
+  TRANSPORTENC_LOAS_NOT_AVAILABLE,                /*!< LOAS format not supported.                               */
+  TRANSPORTENC_INVALID_LATM_ALIGNMENT,            /*!< AudioMuxElement length not aligned to 1 byte.            */
+
+  TRANSPORTENC_INVALID_TRANSMISSION_FRAME_LENGTH, /*!< Invalid transmission frame length (< 0).                 */
+  TRANSPORTENC_INVALID_CELP_FRAME_LENGTH,         /*!< Invalid CELP frame length found (>= 62).                 */
+  TRANSPORTENC_INVALID_FRAME_BITS,                /*!< Frame bits is not 40 and not 80.                         */
+  TRANSPORTENC_INVALID_AOT,                       /*!< Unknown AOT found.                                       */
+  TRANSPORTENC_INVALID_AU_LENGTH                  /*!< Invalid Access Unit length (not byte-aligned).           */
+
+} TRANSPORTENC_ERROR;
+
+typedef struct TRANSPORTENC *HANDLE_TRANSPORTENC;
+
+/**
+ * \brief             Determine a reasonable channel configuration on the basis of channel_mode.
+ * \param noChannels  Number of audio channels.
+ * \return            CHANNEL_MODE value that matches the given amount of audio channels.
+ */
+CHANNEL_MODE transportEnc_GetChannelMode( int noChannels );
+
+/**
+ * \brief                Register SBR heaqder writer callback.
+ * \param hTp            Handle of transport decoder.
+ * \param cbUpdateConfig Pointer to a callback function to handle SBR header writing.
+ * \param user_data      void pointer for user data passed to the callback as first parameter.
+ * \return               0 on success.
+ */
+int transportEnc_RegisterSbrCallback (
+        HANDLE_TRANSPORTENC hTpEnc,
+        const cbSbr_t cbSbr,
+        void* user_data
+        );
+
+/**
+ * \brief                Register SSC writer callback.
+ * \param hTp            Handle of transport decoder.
+ * \param cbUpdateConfig Pointer to a callback function to handle SSC writing.
+ * \param user_data      void pointer for user data passed to the callback as first parameter.
+ * \return               0 on success.
+ */
+int transportEnc_RegisterSscCallback (
+        HANDLE_TRANSPORTENC hTpEnc,
+        const cbSsc_t cbSsc,
+        void* user_data
+        );
+
+/**
+ * \brief         Write ASC from given parameters.
+ * \param asc     A HANDLE_FDK_BITSTREAM where the ASC is written to.
+ * \param config  Structure containing the codec configuration settings.
+ * \param cb callback information structure.
+ * \return        0 on success.
+ */
+int transportEnc_writeASC (
+        HANDLE_FDK_BITSTREAM asc,
+        CODER_CONFIG *config,
+        CSTpCallBacks *cb
+        );
+
+
+/* Defintion of flags that can be passed to transportEnc_Open() */
+#define TP_FLAG_MPEG4      1  /** MPEG4 (instead of MPEG2) */
+#define TP_FLAG_LATM_AMV   2  /** LATM AudioMuxVersion  */
+#define TP_FLAG_LATM_AMVA  4  /** LATM AudioMuxVersionA */
+
+/**
+ * \brief               Allocate transport encoder.
+ * \param phTpEnc       Pointer to transport encoder handle.
+ * \return              Error code.
+ */
+TRANSPORTENC_ERROR transportEnc_Open( HANDLE_TRANSPORTENC *phTpEnc );
+
+/**
+ * \brief               Init transport encoder.
+ * \param bsBuffer      Pointer to transport encoder.
+ * \param bsBuffer      Pointer to bitstream buffer.
+ * \param bsBufferSize  Size in bytes of bsBuffer.
+ * \param transportFmt  Format of the transport to be written.
+ * \param config        Pointer to a valid CODER_CONFIG struct.
+ * \param flags         Transport encoder flags.
+ * \return              Error code.
+ */
+TRANSPORTENC_ERROR transportEnc_Init(
+        HANDLE_TRANSPORTENC hTpEnc,
+        UCHAR              *bsBuffer,
+        INT                 bsBufferSize,
+        TRANSPORT_TYPE     transportFmt,
+        CODER_CONFIG      *config,
+        UINT               flags
+        );
+
+/**
+ * \brief      Get transport encoder bitstream.
+ * \param hTp  Pointer to a transport encoder handle.
+ * \return     The handle to the requested FDK bitstream.
+ */
+HANDLE_FDK_BITSTREAM transportEnc_GetBitstream( HANDLE_TRANSPORTENC hTp );
+
+/**
+ * \brief         Get amount of bits required by the transport headers.
+ * \param hTp     Handle of transport encoder.
+ * \param auBits  Amount of payload bits required for the current subframe.
+ * \return        Error code.
+ */
+INT transportEnc_GetStaticBits( HANDLE_TRANSPORTENC hTp, int auBits );
+
+/**
+ * \brief       Close transport encoder. This function assures that all allocated memory is freed.
+ * \param phTp  Pointer to a previously allocated transport encoder handle.
+ */
+void transportEnc_Close( HANDLE_TRANSPORTENC *phTp );
+
+/**
+ * \brief                       Write one access unit.
+ * \param hTp                   Handle of transport encoder.
+ * \param total_bits            Amount of total access unit bits.
+ * \param bufferFullness        Value of current buffer fullness in bits.
+ * \param noConsideredChannels  Number of bitrate wise considered channels (all minus LFE channels).
+ * \return                      Error code.
+ */
+TRANSPORTENC_ERROR transportEnc_WriteAccessUnit( HANDLE_TRANSPORTENC hTp,
+                                                 INT total_bits,
+                                                 int bufferFullness,
+                                                 int noConsideredChannels );
+
+/**
+ * \brief        Inform the transportEnc layer that writing of access unit has finished. This function
+ *               is required to be called when the encoder has finished writing one Access
+ *               one Access Unit for bitstream housekeeping.
+ * \param hTp    Transport handle.
+ * \param pBits  Pointer to an int, where the current amount of frame bits is passed
+ *               and where the current amount of subframe bits is returned.
+ *
+ * OR:  This integer is modified by the amount of extra bit alignment that may occurr.
+ *
+ * \return       Error code.
+ */
+TRANSPORTENC_ERROR transportEnc_EndAccessUnit( HANDLE_TRANSPORTENC hTp, int *pBits);
+
+/*
+ * \brief         Get a payload frame.
+ * \param hTpEnc  Transport encoder handle.
+ * \param nBytes  Pointer to an int to hold the frame size in bytes. Returns zero
+ *                if currently there is no complete frame for output (number of sub frames > 1).
+ * \return        Error code.
+ */
+TRANSPORTENC_ERROR transportEnc_GetFrame(HANDLE_TRANSPORTENC hTpEnc, int *nbytes);
+
+/* ADTS CRC support */
+
+/**
+ * \brief         Set current bitstream position as start of a new data region.
+ * \param hTpEnc  Transport encoder handle.
+ * \param mBits   Size in bits of the data region. Set to 0 if it should not be of a fixed size.
+ * \return        Data region ID, which should be used when calling transportEnc_CrcEndReg().
+ */
+int transportEnc_CrcStartReg(HANDLE_TRANSPORTENC hTpEnc, int mBits);
+
+/**
+ * \brief         Set end of data region.
+ * \param hTpEnc  Transport encoder handle.
+ * \param reg     Data region ID, opbtained from transportEnc_CrcStartReg().
+ * \return        void
+ */
+void transportEnc_CrcEndReg(HANDLE_TRANSPORTENC hTpEnc, int reg);
+
+/**
+ * \brief             Get AudioSpecificConfig or StreamMuxConfig from transport encoder handle and write it to dataBuffer.
+ * \param hTpEnc      Transport encoder handle.
+ * \param cc          Pointer to the current and valid configuration contained in a CODER_CONFIG struct.
+ * \param dataBuffer  Bitbuffer holding binary configuration.
+ * \param confType    Pointer to an UINT where the configuration type is returned (0:ASC, 1:SMC).
+ * \return            Error code.
+ */
+TRANSPORTENC_ERROR transportEnc_GetConf( HANDLE_TRANSPORTENC  hTpEnc,
+                                         CODER_CONFIG        *cc,
+                                         FDK_BITSTREAM       *dataBuffer,
+                                         UINT                *confType );
+
+/**
+ * \brief       Get information (version among other things) of the transport encoder library.
+ * \param info  Pointer to an allocated LIB_INFO struct.
+ * \return      Error code.
+ */
+TRANSPORTENC_ERROR transportEnc_GetLibInfo( LIB_INFO *info );
+
+#endif /* #ifndef __TPENC_LIB_H__ */