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-
-/* -----------------------------------------------------------------------------------------------------------
-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
------------------------------------------------------------------------------------------------------------ */
-
-/*************************** Fraunhofer IIS FDK Tools **********************
-
- Author(s):
- Description: fixed point intrinsics
-
-******************************************************************************/
-
-#if defined(__arm__) && defined(__GNUC__) /* cppp replaced: elif */
-
-#if defined(__ARM_ARCH_5TE__) || defined(__ARM_ARCH_6__)
- #define FUNCTION_cplxMultDiv2_32x16
- #define FUNCTION_cplxMultDiv2_32x16X2
- //#define FUNCTION_cplxMult_32x16
- //#define FUNCTION_cplxMult_32x16X2
-#endif
-
-#define FUNCTION_cplxMultDiv2_32x32X2
-//#define FUNCTION_cplxMult_32x32X2
-
-#ifdef FUNCTION_cplxMultDiv2_32x16
-inline void cplxMultDiv2( FIXP_DBL *c_Re,
- FIXP_DBL *c_Im,
- const FIXP_DBL a_Re,
- const FIXP_DBL a_Im,
- const FIXP_SPK wpk )
-{
- LONG tmp1,tmp2;
- const LONG w = wpk.w;
-
- asm("smulwt %0, %3, %4;\n"
- "rsb %1,%0,#0;\n"
- "smlawb %0, %2, %4, %1;\n"
- "smulwt %1, %2, %4;\n"
- "smlawb %1, %3, %4, %1;\n"
- : "=&r"(tmp1), "=&r"(tmp2)
- : "r"(a_Re), "r"(a_Im), "r"(w)
- );
-
- *c_Re = tmp1;
- *c_Im = tmp2;
-}
-#endif /* FUNCTION_cplxMultDiv2_32x16 */
-
-#ifdef FUNCTION_cplxMultDiv2_32x16X2
-inline void cplxMultDiv2( FIXP_DBL *c_Re,
- FIXP_DBL *c_Im,
- const FIXP_DBL a_Re,
- const FIXP_DBL a_Im,
- const FIXP_SGL b_Re,
- const FIXP_SGL b_Im)
-{
- LONG tmp1, tmp2;
-
- asm("smulwb %0, %3, %5;\n" /* %7 = -a_Im * b_Im */
- "rsb %1,%0,#0;\n"
- "smlawb %0, %2, %4, %1;\n" /* tmp1 = a_Re * b_Re - a_Im * b_Im */
- "smulwb %1, %2, %5;\n" /* %7 = a_Re * b_Im */
- "smlawb %1, %3, %4, %1;\n" /* tmp2 = a_Im * b_Re + a_Re * b_Im */
- : "=&r"(tmp1), "=&r"(tmp2)
- : "r"(a_Re), "r"(a_Im), "r"(b_Re), "r"(b_Im)
- );
-
- *c_Re = tmp1;
- *c_Im = tmp2;
-}
-#endif /* FUNCTION_cplxMultDiv2_32x16X2 */
-
-#ifdef FUNCTION_cplxMultAddDiv2_32x16X2
-inline void cplxMultAddDiv2( FIXP_DBL *c_Re,
- FIXP_DBL *c_Im,
- const FIXP_DBL a_Re,
- const FIXP_DBL a_Im,
- const FIXP_SGL b_Re,
- const FIXP_SGL b_Im)
-{
- LONG tmp1, tmp2;
-
- asm("smulwb %0, %3, %5;\n"
- "rsb %1,%0,#0;\n"
- "smlawb %0, %2, %4, %1;\n"
- "smulwb %1, %2, %5;\n"
- "smlawb %1, %3, %4, %1;\n"
- : "=&r"(tmp1), "=&r"(tmp2)
- : "r"(a_Re), "r"(a_Im), "r"(b_Re), "r"(b_Im)
- );
-
- *c_Re += tmp1;
- *c_Im += tmp2;
-}
-#endif /* FUNCTION_cplxMultAddDiv2_32x16X2 */
-
-
-#ifdef FUNCTION_cplxMultDiv2_32x32X2
-inline void cplxMultDiv2( FIXP_DBL *c_Re,
- FIXP_DBL *c_Im,
- const FIXP_DBL a_Re,
- const FIXP_DBL a_Im,
- const FIXP_DBL b_Re,
- const FIXP_DBL b_Im)
-{
- LONG tmp1, tmp2;
-
-#ifdef __ARM_ARCH_6__
- asm(
- "smmul %0, %2, %4;\n" /* tmp1 = a_Re * b_Re */
- "smmls %0, %3, %5, %0;\n" /* tmp1 -= a_Im * b_Im */
- "smmul %1, %2, %5;\n" /* tmp2 = a_Re * b_Im */
- "smmla %1, %3, %4, %1;\n" /* tmp2 += a_Im * b_Re */
- : "=&r"(tmp1), "=&r"(tmp2)
- : "r"(a_Re), "r"(a_Im), "r"(b_Re), "r"(b_Im)
- : "r0"
- );
-#else
- LONG discard;
- asm(
- "smull %2, %0, %7, %6;\n" /* tmp1 = -a_Im * b_Im */
- "smlal %2, %0, %3, %5;\n" /* tmp1 += a_Re * b_Re */
- "smull %2, %1, %3, %6;\n" /* tmp2 = a_Re * b_Im */
- "smlal %2, %1, %4, %5;\n" /* tmp2 += a_Im * b_Re */
- : "=&r"(tmp1), "=&r"(tmp2), "=&r"(discard)
- : "r"(a_Re), "r"(a_Im), "r"(b_Re), "r"(b_Im), "r"(-a_Im)
- );
- #endif
- *c_Re = tmp1;
- *c_Im = tmp2;
-}
-#endif /* FUNCTION_cplxMultDiv2_32x32X2 */
-
-
-#endif
-
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