Fraunhofer AAC codec.

License boilerplate update to follow.

Change-Id: I2810460c11a58b6d148d84673cc031f3685e79b5

1 files changed, 86 insertions, 0 deletions

diff --git a/libAACdec/src/channel.h b/libAACdec/src/channel.h
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+/*****************************  MPEG-4 AAC Decoder  **************************
+
+                        (C) Copyright Fraunhofer IIS (2004)
+                               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):   Josef Hoepfl
+   Description:
+
+   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 CHANNEL_H
+#define CHANNEL_H
+
+#include "common_fix.h"
+
+#include "FDK_bitstream.h"
+#include "channelinfo.h"
+#include "tpdec_lib.h"
+
+/**
+ * \brief Init codeBook SFB indices (section data) with HCB_ESC. Useful for bitstreams
+ * which do not have any section data, but still SFB's (scale factor bands). This has
+ * the effect that upto the amount of transmitted SFB are treated as non-zero.
+ * \param pAacDecoderChannelInfo channel info structure containing a valid icsInfo struct.
+ */
+void CChannel_CodebookTableInit(CAacDecoderChannelInfo *pAacDecoderChannelInfo);
+
+/**
+ * \brief decode a channel element. To be called after CChannelElement_Read()
+ * \param pAacDecoderChannelInfo pointer to channel data struct. Depending on el_channels either one or two.
+ * \param pSamplingRateInfo pointer to sample rate information structure
+ * \param el_channels amount of channels of the element to be decoded.
+ * \param output pointer to time domain output buffer (ACELP)
+ * \param stride factor for accessing output
+ */
+void CChannelElement_Decode ( CAacDecoderChannelInfo *pAacDecoderChannelInfo[2],
+                              CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[2],
+                              SamplingRateInfo *pSamplingRateInfo,
+                              UINT flags,
+                              int el_channels );
+
+
+/**
+ * \brief Read channel element of given type from bitstream.
+ * \param hBs bitstream handle to access bitstream data.
+ * \param pAacDecoderChannelInfo pointer array to store channel information.
+ * \param aot Audio Object Type
+ * \param pSamplingRateInfo sampling rate info table.
+ * \param flags parser guidance flags
+ * \param numberOfChannels amoun of channels contained in the object to be parsed.
+ * \param epConfig the current epConfig value obtained from the Audio Specific Config.
+ * \param pTp transport decoder handle required for ADTS CRC checking.
+ * ...
+ * \return an AAC_DECODER_ERROR error code.
+ */
+AAC_DECODER_ERROR CChannelElement_Read(HANDLE_FDK_BITSTREAM hBs,
+                                       CAacDecoderChannelInfo *pAacDecoderChannelInfo[],
+                                       CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[],
+                                       const AUDIO_OBJECT_TYPE aot,
+                                       const SamplingRateInfo *pSamplingRateInfo,
+                                       const UINT  flags,
+                                       const UINT  frame_length,
+                                       const UCHAR numberOfChannels,
+                                       const SCHAR epConfig,
+                                       HANDLE_TRANSPORTDEC pTpDec
+                                       );
+
+#endif /* #ifndef CHANNEL_H */