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Diffstat (limited to 'libAACdec/src/pulsedata.cpp')
| -rw-r--r-- | libAACdec/src/pulsedata.cpp | 158 |
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diff --git a/libAACdec/src/pulsedata.cpp b/libAACdec/src/pulsedata.cpp deleted file mode 100644 index 0f2f0ec..0000000 --- a/libAACdec/src/pulsedata.cpp +++ /dev/null @@ -1,158 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -Software License for The Fraunhofer FDK AAC Codec Library for Android - -© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. - All rights reserved. - - 1. INTRODUCTION -The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements -the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. -This FDK AAC Codec software is intended to be used on a wide variety of Android devices. - -AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual -audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by -independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part -of the MPEG specifications. - -Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) -may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners -individually for the purpose of encoding or decoding bit streams in products that are compliant with -the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license -these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec -software may already be covered under those patent licenses when it is used for those licensed purposes only. - -Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, -are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional -applications information and documentation. - -2. COPYRIGHT LICENSE - -Redistribution and use in source and binary forms, with or without modification, are permitted without -payment of copyright license fees provided that you satisfy the following conditions: - -You must retain the complete text of this software license in redistributions of the FDK AAC Codec or -your modifications thereto in source code form. - -You must retain the complete text of this software license in the documentation and/or other materials -provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. -You must make available free of charge copies of the complete source code of the FDK AAC Codec and your -modifications thereto to recipients of copies in binary form. - -The name of Fraunhofer may not be used to endorse or promote products derived from this library without -prior written permission. - -You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec -software or your modifications thereto. - -Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software -and the date of any change. For modified versions of the FDK AAC Codec, the term -"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term -"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." - -3. NO PATENT LICENSE - -NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, -ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with -respect to this software. - -You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized -by appropriate patent licenses. - -4. DISCLAIMER - -This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors -"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties -of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR -CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, -including but not limited to procurement of substitute goods or services; loss of use, data, or profits, -or business interruption, however caused and on any theory of liability, whether in contract, strict -liability, or tort (including negligence), arising in any way out of the use of this software, even if -advised of the possibility of such damage. - -5. CONTACT INFORMATION - -Fraunhofer Institute for Integrated Circuits IIS -Attention: Audio and Multimedia Departments - FDK AAC LL -Am Wolfsmantel 33 -91058 Erlangen, Germany - -www.iis.fraunhofer.de/amm -amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ - -/***************************** MPEG-4 AAC Decoder ************************** - - Author(s): Josef Hoepfl - Description: pulse data tool - -******************************************************************************/ - -#include "pulsedata.h" - - -#include "channelinfo.h" - - -INT CPulseData_Read( - HANDLE_FDK_BITSTREAM bs, - CPulseData *const PulseData, - const SHORT *sfb_startlines, - const void *pIcsInfo, - const SHORT frame_length - ) -{ - int i, k=0; - const UINT MaxSfBands = GetScaleFactorBandsTransmitted((CIcsInfo*)pIcsInfo); - - /* reset pulse data flag */ - PulseData->PulseDataPresent = 0; - - if ((PulseData->PulseDataPresent = (UCHAR) FDKreadBit(bs)) != 0) { - if (!IsLongBlock((CIcsInfo*)pIcsInfo)) { - return AAC_DEC_DECODE_FRAME_ERROR; - } - - PulseData->NumberPulse = (UCHAR) FDKreadBits(bs,2); - PulseData->PulseStartBand = (UCHAR) FDKreadBits(bs,6); - - if (PulseData->PulseStartBand >= MaxSfBands) { - return AAC_DEC_DECODE_FRAME_ERROR; - } - - k = sfb_startlines[PulseData->PulseStartBand]; - - for (i=0; i<=PulseData->NumberPulse; i++) { - PulseData->PulseOffset[i] = (UCHAR) FDKreadBits(bs,5); - PulseData->PulseAmp[i] = (UCHAR) FDKreadBits(bs,4); - k += PulseData->PulseOffset[i]; - } - - if (k >= frame_length) { - return AAC_DEC_DECODE_FRAME_ERROR; - } - } - - - return 0; -} - -void CPulseData_Apply(CPulseData *PulseData, /*!< pointer to pulse data side info */ - const short *pScaleFactorBandOffsets, /*!< pointer to scalefactor band offsets */ - FIXP_DBL *coef) /*!< pointer to spectrum */ -{ - int i,k; - - if (PulseData->PulseDataPresent) - { - k = pScaleFactorBandOffsets[PulseData->PulseStartBand]; - - for (i=0; i<=PulseData->NumberPulse; i++) - { - k += PulseData->PulseOffset[i]; - if (coef [k] > (FIXP_DBL)0) coef[k] += (FIXP_DBL)(int)PulseData->PulseAmp[i]; - else coef[k] -= (FIXP_DBL)(int)PulseData->PulseAmp[i]; - } - } -} - |