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1 /* -----------------------------------------------------------------------------
2 Software License for The Fraunhofer FDK AAC Codec Library for Android
3 
4 © Copyright  1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
5 Forschung e.V. All rights reserved.
6 
7  1.    INTRODUCTION
8 The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
9 that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
10 scheme for digital audio. This FDK AAC Codec software is intended to be used on
11 a wide variety of Android devices.
12 
13 AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
14 general perceptual audio codecs. AAC-ELD is considered the best-performing
15 full-bandwidth communications codec by independent studies and is widely
16 deployed. AAC has been standardized by ISO and IEC as part of the MPEG
17 specifications.
18 
19 Patent licenses for necessary patent claims for the FDK AAC Codec (including
20 those of Fraunhofer) may be obtained through Via Licensing
21 (www.vialicensing.com) or through the respective patent owners individually for
22 the purpose of encoding or decoding bit streams in products that are compliant
23 with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
24 Android devices already license these patent claims through Via Licensing or
25 directly from the patent owners, and therefore FDK AAC Codec software may
26 already be covered under those patent licenses when it is used for those
27 licensed purposes only.
28 
29 Commercially-licensed AAC software libraries, including floating-point versions
30 with enhanced sound quality, are also available from Fraunhofer. Users are
31 encouraged to check the Fraunhofer website for additional applications
32 information and documentation.
33 
34 2.    COPYRIGHT LICENSE
35 
36 Redistribution and use in source and binary forms, with or without modification,
37 are permitted without payment of copyright license fees provided that you
38 satisfy the following conditions:
39 
40 You must retain the complete text of this software license in redistributions of
41 the FDK AAC Codec or your modifications thereto in source code form.
42 
43 You must retain the complete text of this software license in the documentation
44 and/or other materials provided with redistributions of the FDK AAC Codec or
45 your modifications thereto in binary form. You must make available free of
46 charge copies of the complete source code of the FDK AAC Codec and your
47 modifications thereto to recipients of copies in binary form.
48 
49 The name of Fraunhofer may not be used to endorse or promote products derived
50 from this library without prior written permission.
51 
52 You may not charge copyright license fees for anyone to use, copy or distribute
53 the FDK AAC Codec software or your modifications thereto.
54 
55 Your modified versions of the FDK AAC Codec must carry prominent notices stating
56 that you changed the software and the date of any change. For modified versions
57 of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
58 must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
59 AAC Codec Library for Android."
60 
61 3.    NO PATENT LICENSE
62 
63 NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
64 limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
65 Fraunhofer provides no warranty of patent non-infringement with respect to this
66 software.
67 
68 You may use this FDK AAC Codec software or modifications thereto only for
69 purposes that are authorized by appropriate patent licenses.
70 
71 4.    DISCLAIMER
72 
73 This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
74 holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
75 including but not limited to the implied warranties of merchantability and
76 fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
77 CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
78 or consequential damages, including but not limited to procurement of substitute
79 goods or services; loss of use, data, or profits, or business interruption,
80 however caused and on any theory of liability, whether in contract, strict
81 liability, or tort (including negligence), arising in any way out of the use of
82 this software, even if advised of the possibility of such damage.
83 
84 5.    CONTACT INFORMATION
85 
86 Fraunhofer Institute for Integrated Circuits IIS
87 Attention: Audio and Multimedia Departments - FDK AAC LL
88 Am Wolfsmantel 33
89 91058 Erlangen, Germany
90 
91 www.iis.fraunhofer.de/amm
92 amm-info@iis.fraunhofer.de
93 ----------------------------------------------------------------------------- */
94 
95 /************************* System integration library **************************
96 
97    Author(s):
98 
99    Description:
100 
101 *******************************************************************************/
102 
103 /** \file   machine_type.h
104  *  \brief  Type defines for various processors and compiler tools.
105  */
106 
107 #if !defined(MACHINE_TYPE_H)
108 #define MACHINE_TYPE_H
109 
110 #include <stddef.h> /* Needed to define size_t */
111 
112 #if defined(__ANDROID__) && (__GNUC__ == 4) && (__GNUC_MINOR__ == 4) && \
113     (__GNUC_GNU_INLINE__ == 1)
114 typedef unsigned long long uint64_t;
115 #include <sys/types.h>
116 #endif
117 
118 /* Library calling convention spec. __cdecl and friends might be added here as
119  * required. */
120 #define LINKSPEC_H
121 #define LINKSPEC_CPP
122 
123 /* for doxygen the following docu parts must be separated */
124 /** \var  SCHAR
125  *        Data type representing at least 1 byte signed integer on all supported
126  * platforms.
127  */
128 /** \var  UCHAR
129  *        Data type representing at least 1 byte unsigned integer on all
130  * supported platforms.
131  */
132 /** \var  INT
133  *        Data type representing at least 4 byte signed integer on all supported
134  * platforms.
135  */
136 /** \var  UINT
137  *        Data type representing at least 4 byte unsigned integer on all
138  * supported platforms.
139  */
140 /** \var  LONG
141  *        Data type representing 4 byte signed integer on all supported
142  * platforms.
143  */
144 /** \var  ULONG
145  *        Data type representing 4 byte unsigned integer on all supported
146  * platforms.
147  */
148 /** \var  SHORT
149  *        Data type representing 2 byte signed integer on all supported
150  * platforms.
151  */
152 /** \var  USHORT
153  *        Data type representing 2 byte unsigned integer on all supported
154  * platforms.
155  */
156 /** \var  INT64
157  *        Data type representing 8 byte signed integer on all supported
158  * platforms.
159  */
160 /** \var  UINT64
161  *        Data type representing 8 byte unsigned integer on all supported
162  * platforms.
163  */
164 /** \def  SHORT_BITS
165  *        Number of bits the data type short represents. sizeof() is not suited
166  * to get this info, because a byte is not always defined as 8 bits.
167  */
168 /** \def  CHAR_BITS
169  *        Number of bits the data type char represents. sizeof() is not suited
170  * to get this info, because a byte is not always defined as 8 bits.
171  */
172 /** \var  INT_PCM
173  *        Data type representing the width of input and output PCM samples.
174  */
175 
176 typedef signed int INT;
177 typedef unsigned int UINT;
178 #ifdef __LP64__
179 /* force FDK long-datatypes to 4 byte  */
180 /* Use defines to avoid type alias problems on 64 bit machines. */
181 #define LONG INT
182 #define ULONG UINT
183 #else  /* __LP64__ */
184 typedef signed long LONG;
185 typedef unsigned long ULONG;
186 #endif /* __LP64__ */
187 typedef signed short SHORT;
188 typedef unsigned short USHORT;
189 typedef signed char SCHAR;
190 typedef unsigned char UCHAR;
191 
192 #define SHORT_BITS 16
193 #define CHAR_BITS 8
194 
195 /* Define 64 bit base integer type. */
196 #ifdef _MSC_VER
197 typedef __int64 INT64;
198 typedef unsigned __int64 UINT64;
199 #else
200 typedef long long INT64;
201 typedef unsigned long long UINT64;
202 #endif
203 
204 #ifndef NULL
205 #ifdef __cplusplus
206 #define NULL 0
207 #else
208 #define NULL ((void *)0)
209 #endif
210 #endif
211 
212 #if ((defined(__i686__) || defined(__i586__) || defined(__i386__) ||  \
213       defined(__x86_64__)) ||                                         \
214      (defined(_MSC_VER) && (defined(_M_IX86) || defined(_M_X64)))) && \
215     !defined(FDK_ASSERT_ENABLE)
216 #define FDK_ASSERT_ENABLE
217 #endif
218 
219 #if defined(FDK_ASSERT_ENABLE)
220 #include <assert.h>
221 #define FDK_ASSERT(x) assert(x)
222 #else
223 #define FDK_ASSERT(ignore)
224 #endif
225 
226 typedef SHORT INT_PCM;
227 #define MAXVAL_PCM MAXVAL_SGL
228 #define MINVAL_PCM MINVAL_SGL
229 #define WAV_BITS 16
230 #define SAMPLE_BITS 16
231 #define SAMPLE_MAX ((INT_PCM)(((ULONG)1 << (SAMPLE_BITS - 1)) - 1))
232 #define SAMPLE_MIN (~SAMPLE_MAX)
233 
234 /*!
235 * \def    RAM_ALIGN
236 *  Used to align memory as prefix before memory declaration. For example:
237    \code
238    RAM_ALIGN
239    int myArray[16];
240    \endcode
241 
242    Note, that not all platforms support this mechanism. For example with TI
243 compilers a preprocessor pragma is used, but to do something like
244 
245    \code
246    #define RAM_ALIGN #pragma DATA_ALIGN(x)
247    \endcode
248 
249    would require the preprocessor to process this line twice to fully resolve
250 it. Hence, a fully platform-independant way to use alignment is not supported.
251 
252 * \def    ALIGNMENT_DEFAULT
253 *         Default alignment in bytes.
254 */
255 
256 #define ALIGNMENT_DEFAULT 8
257 
258 /* RAM_ALIGN keyword causes memory alignment of global variables. */
259 #if defined(_MSC_VER)
260 #define RAM_ALIGN __declspec(align(ALIGNMENT_DEFAULT))
261 #elif defined(__GNUC__)
262 #define RAM_ALIGN __attribute__((aligned(ALIGNMENT_DEFAULT)))
263 #else
264 #define RAM_ALIGN
265 #endif
266 
267 /*!
268  * \def  RESTRICT
269  *       The restrict keyword is supported by some platforms and RESTRICT maps
270  * to either the corresponding keyword on each platform or to void if the
271  *       compiler does not provide such feature. It tells the compiler that a
272  * pointer points to memory that does not overlap with other memories pointed to
273  * by other pointers. If this keyword is used and the assumption of no
274  * overlap is not true the resulting code might crash.
275  *
276  * \def  WORD_ALIGNED(x)
277  *       Tells the compiler that pointer x is 16 bit aligned. It does not cause
278  * the address itself to be aligned, but serves as a hint to the optimizer. The
279  * alignment of the pointer must be guarranteed, if not the code might
280  * crash.
281  *
282  * \def  DWORD_ALIGNED(x)
283  *       Tells the compiler that pointer x is 32 bit aligned. It does not cause
284  * the address itself to be aligned, but serves as a hint to the optimizer. The
285  * alignment of the pointer must be guarranteed, if not the code might
286  * crash.
287  *
288  */
289 #define RESTRICT
290 #define WORD_ALIGNED(x) C_ALLOC_ALIGNED_CHECK2((const void *)(x), 2);
291 #define DWORD_ALIGNED(x) C_ALLOC_ALIGNED_CHECK2((const void *)(x), 4);
292 
293 /*-----------------------------------------------------------------------------------
294  * ALIGN_SIZE
295  *-----------------------------------------------------------------------------------*/
296 /*!
297  * \brief  This macro aligns a given value depending on ::ALIGNMENT_DEFAULT.
298  *
299  * For example if #ALIGNMENT_DEFAULT equals 8, then:
300  * - ALIGN_SIZE(3) returns 8
301  * - ALIGN_SIZE(8) returns 8
302  * - ALIGN_SIZE(9) returns 16
303  */
304 #define ALIGN_SIZE(a)                                                          \
305   ((a) + (((INT)ALIGNMENT_DEFAULT - ((size_t)(a) & (ALIGNMENT_DEFAULT - 1))) & \
306           (ALIGNMENT_DEFAULT - 1)))
307 
308 /*!
309  * \brief  This macro aligns a given address depending on ::ALIGNMENT_DEFAULT.
310  */
311 #define ALIGN_PTR(a)                                      \
312   ((void *)((unsigned char *)(a) +                        \
313             ((((INT)ALIGNMENT_DEFAULT -                   \
314                ((size_t)(a) & (ALIGNMENT_DEFAULT - 1))) & \
315               (ALIGNMENT_DEFAULT - 1)))))
316 
317 /* Alignment macro for libSYS heap implementation */
318 #define ALIGNMENT_EXTRES (ALIGNMENT_DEFAULT)
319 #define ALGN_SIZE_EXTRES(a)                                               \
320   ((a) + (((INT)ALIGNMENT_EXTRES - ((INT)(a) & (ALIGNMENT_EXTRES - 1))) & \
321           (ALIGNMENT_EXTRES - 1)))
322 
323 /*!
324  * \def  FDK_FORCEINLINE
325  *       Sometimes compiler do not do what they are told to do, and in case of
326  * inlining some additional command might be necessary depending on the
327  * platform.
328  *
329  * \def  FDK_INLINE
330  *       Defines how the compiler is told to inline stuff.
331  */
332 #ifndef FDK_FORCEINLINE
333 #if defined(__GNUC__) && !defined(__SDE_MIPS__)
334 #define FDK_FORCEINLINE inline __attribute((always_inline))
335 #else
336 #define FDK_FORCEINLINE inline
337 #endif
338 #endif
339 
340 #define FDK_INLINE static inline
341 
342 /*!
343  * \def  LNK_SECTION_DATA_L1
344  *       The LNK_SECTION_* defines allow memory to be drawn from specific memory
345  *       sections. Used as prefix before variable declaration.
346  *
347  * \def  LNK_SECTION_DATA_L2
348  *       See ::LNK_SECTION_DATA_L1
349  * \def  LNK_SECTION_L1_DATA_A
350  *       See ::LNK_SECTION_DATA_L1
351  * \def  LNK_SECTION_L1_DATA_B
352  *       See ::LNK_SECTION_DATA_L1
353  * \def  LNK_SECTION_CONSTDATA_L1
354  *       See ::LNK_SECTION_DATA_L1
355  * \def  LNK_SECTION_CONSTDATA
356  *       See ::LNK_SECTION_DATA_L1
357  * \def  LNK_SECTION_CODE_L1
358  *       See ::LNK_SECTION_DATA_L1
359  * \def  LNK_SECTION_CODE_L2
360  *       See ::LNK_SECTION_DATA_L1
361  * \def  LNK_SECTION_INITCODE
362  *       See ::LNK_SECTION_DATA_L1
363  */
364 /**************************************************
365  * Code Section macros
366  **************************************************/
367 #define LNK_SECTION_CODE_L1
368 #define LNK_SECTION_CODE_L2
369 #define LNK_SECTION_INITCODE
370 
371 /* Memory section macros. */
372 
373 /* default fall back */
374 #define LNK_SECTION_DATA_L1
375 #define LNK_SECTION_DATA_L2
376 #define LNK_SECTION_CONSTDATA
377 #define LNK_SECTION_CONSTDATA_L1
378 
379 #define LNK_SECTION_L1_DATA_A
380 #define LNK_SECTION_L1_DATA_B
381 
382 /**************************************************
383  * Macros regarding static code analysis
384  **************************************************/
385 #if defined(__clang__)
386 #define FDK_FALLTHROUGH [[clang::fallthrough]]
387 #elif defined(__GNUC__) && (__GNUC__ >= 7)
388 #define FDK_FALLTHROUGH __attribute__((fallthrough))
389 #else
390 #define FDK_FALLTHROUGH
391 #endif
392 
393 #ifdef _MSC_VER
394 /*
395  * Sometimes certain features are excluded from compilation and therefore the
396  * warning 4065 may occur: "switch statement contains 'default' but no 'case'
397  * labels" We consider this warning irrelevant and disable it.
398  */
399 #pragma warning(disable : 4065)
400 #endif
401 
402 #endif /* MACHINE_TYPE_H */
403