xref: /aosp_15_r20/external/aac/libSYS/src/genericStds.cpp (revision e54365361535b070c2db7374cec45c159c7d0e7a)

/* -----------------------------------------------------------------------------
Software License for The Fraunhofer FDK AAC Codec Library for Android

© Copyright  1995 - 2018 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
[email protected]
----------------------------------------------------------------------------- */

/************************* System integration library **************************

   Author(s):

   Description: - Generic memory, stdio, string, etc. function wrappers or
                builtins.
                - OS dependant function wrappers.

*******************************************************************************/

#ifndef _CRT_SECURE_NO_WARNINGS
#define _CRT_SECURE_NO_WARNINGS
#endif

#define __GENERICSTDS_CPP__

#include "genericStds.h"

/* library info */
#define SYS_LIB_VL0 2
#define SYS_LIB_VL1 0
#define SYS_LIB_VL2 0
#define SYS_LIB_TITLE "System Integration Library"
#ifdef __ANDROID__
#define SYS_LIB_BUILD_DATE ""
#define SYS_LIB_BUILD_TIME ""
#else
#define SYS_LIB_BUILD_DATE __DATE__
#define SYS_LIB_BUILD_TIME __TIME__
#endif

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>

/***************************************************************
 * memory allocation monitoring variables
 ***************************************************************/

/* Include OS/System specific implementations. */

#include <string.h>
#include <stdlib.h>
#include <stdio.h>

void FDKprintf(const char *szFmt, ...) {
  va_list ap;
  va_start(ap, szFmt);
  vprintf(szFmt, ap);
  va_end(ap);
}

void FDKprintfErr(const char *szFmt, ...) {
  va_list ap;
  va_start(ap, szFmt);
  vfprintf(stderr, szFmt, ap);
  va_end(ap);
}

int FDKgetchar(void) { return getchar(); }

INT FDKfprintf(FDKFILE *stream, const char *format, ...) {
  INT chars = 0;
  va_list ap;
  va_start(ap, format);
  chars += vfprintf((FILE *)stream, format, ap);
  va_end(ap);
  return chars;
}

INT FDKsprintf(char *str, const char *format, ...) {
  INT chars = 0;
  va_list ap;
  va_start(ap, format);
  chars += vsprintf(str, format, ap);
  va_end(ap);
  return chars;
}

/************************************************************************************************/

/************************************************************************************************/

char *FDKstrchr(char *s, INT c) { return strchr(s, c); }
const char *FDKstrstr(const char *haystack, const char *needle) {
  return strstr(haystack, needle);
}
char *FDKstrcpy(char *dest, const char *src) { return strcpy(dest, src); }
char *FDKstrncpy(char *dest, const char *src, UINT n) {
  return strncpy(dest, src, n);
}

/*************************************************************************
 * DYNAMIC MEMORY management (heap)
 *************************************************************************/

void *FDKcalloc(const UINT n, const UINT size) {
  void *ptr;

  ptr = calloc(n, size);

  return ptr;
}

void *FDKmalloc(const UINT size) {
  void *ptr;

  ptr = malloc(size);

  return ptr;
}

void FDKfree(void *ptr) { free((INT *)ptr); }

void *FDKaalloc(const UINT size, const UINT alignment) {
  void *addr, *result = NULL;
  addr = FDKcalloc(1, size + alignment +
                          (UINT)sizeof(void *)); /* Malloc and clear memory. */

  if (addr != NULL) {
    result = ALIGN_PTR((unsigned char *)addr +
                       sizeof(void *)); /* Get aligned memory base address. */
    *(((void **)result) - 1) = addr;    /* Save malloc'ed memory pointer.   */
    C_ALLOC_ALIGNED_REGISTER(result, size);
  }

  return result; /* Return aligned address.          */
}

void FDKafree(void *ptr) {
  void *addr;
  addr = *(((void **)ptr) - 1); /* Get pointer to malloc'ed memory. */

  C_ALLOC_ALIGNED_UNREGISTER(ptr);

  FDKfree(addr); /* Free malloc'ed memory area.      */
}

/*--------------------------------------------------------------------------*
 * DATA MEMORY L1/L2 (fallback)
 *--------------------------------------------------------------------------*/

/*--------------------------------------------------------------------------*
 * FDKcalloc_L
 *--------------------------------------------------------------------------*/
void *FDKcalloc_L(const UINT dim, const UINT size, MEMORY_SECTION s) {
  return FDKcalloc(dim, size);
}

void FDKfree_L(void *p) { FDKfree(p); }

void *FDKaalloc_L(const UINT size, const UINT alignment, MEMORY_SECTION s) {
  void *addr, *result = NULL;
  addr = FDKcalloc_L(1, size + alignment + (UINT)sizeof(void *),
                     s); /* Malloc and clear memory.         */

  if (addr != NULL) {
    result = ALIGN_PTR((unsigned char *)addr +
                       sizeof(void *)); /* Get aligned memory base address. */
    *(((void **)result) - 1) = addr;    /* Save malloc'ed memory pointer.   */
    C_ALLOC_ALIGNED_REGISTER(result, size);
  }

  return result; /* Return aligned address.          */
}

void FDKafree_L(void *ptr) {
  void *addr;

  addr = *(((void **)ptr) - 1); /* Get pointer to malloc'ed memory. */

  C_ALLOC_ALIGNED_UNREGISTER(ptr);

  FDKfree_L(addr); /* Free malloc'ed memory area.      */
}

/*---------------------------------------------------------------------------------------
 * FUNCTION:    FDKmemcpy
 * DESCRIPTION: - copies memory from "src" to "dst" with length "size" bytes
 *              - compiled with FDK_DEBUG will give you warnings
 *---------------------------------------------------------------------------------------*/
void FDKmemcpy(void *dst, const void *src, const UINT size) {
  /* -- check for overlapping memory areas -- */
  FDK_ASSERT(((const unsigned char *)dst - (const unsigned char *)src) >=
                 (ptrdiff_t)size ||
             ((const unsigned char *)src - (const unsigned char *)dst) >=
                 (ptrdiff_t)size);

  /* do the copy */
  memcpy(dst, src, size);
}

void FDKmemmove(void *dst, const void *src, const UINT size) {
  memmove(dst, src, size);
}

void FDKmemset(void *memPtr, const INT value, const UINT size) {
  memset(memPtr, value, size);
}

void FDKmemclear(void *memPtr, const UINT size) { FDKmemset(memPtr, 0, size); }

UINT FDKstrlen(const char *s) { return (UINT)strlen(s); }

/* Compare function wrappers */
INT FDKmemcmp(const void *s1, const void *s2, const UINT size) {
  return memcmp(s1, s2, size);
}
INT FDKstrcmp(const char *s1, const char *s2) { return strcmp(s1, s2); }
INT FDKstrncmp(const char *s1, const char *s2, const UINT size) {
  return strncmp(s1, s2, size);
}

int IS_LITTLE_ENDIAN(void) {
  int __dummy = 1;
  return (*((UCHAR *)(&(__dummy))));
}

UINT TO_LITTLE_ENDIAN(UINT val) {
  return IS_LITTLE_ENDIAN()
             ? val
             : (((val & 0xff) << 24) | ((val & 0xff00) << 8) |
                ((val & 0xff0000) >> 8) | ((val & 0xff000000) >> 24));
}

/* ==================== FILE I/O ====================== */

FDKFILE *FDKfopen(const char *filename, const char *mode) {
  return fopen(filename, mode);
}
INT FDKfclose(FDKFILE *fp) { return fclose((FILE *)fp); }
INT FDKfseek(FDKFILE *fp, LONG OFFSET, int WHENCE) {
  return fseek((FILE *)fp, OFFSET, WHENCE);
}
INT FDKftell(FDKFILE *fp) { return ftell((FILE *)fp); }
INT FDKfflush(FDKFILE *fp) { return fflush((FILE *)fp); }
const INT FDKSEEK_SET = SEEK_SET;
const INT FDKSEEK_CUR = SEEK_CUR;
const INT FDKSEEK_END = SEEK_END;

UINT FDKfwrite(const void *ptrf, INT size, UINT nmemb, FDKFILE *fp) {
  return (UINT)fwrite(ptrf, size, nmemb, (FILE *)fp);
}
UINT FDKfread(void *dst, INT size, UINT nmemb, FDKFILE *fp) {
  return (UINT)fread(dst, size, nmemb, (FILE *)fp);
}
char *FDKfgets(void *dst, INT size, FDKFILE *fp) {
  return fgets((char *)dst, size, (FILE *)fp);
}
void FDKrewind(FDKFILE *fp) { FDKfseek((FILE *)fp, 0, FDKSEEK_SET); }

UINT FDKfwrite_EL(const void *ptrf, INT size, UINT nmemb, FDKFILE *fp) {
  if (IS_LITTLE_ENDIAN()) {
    FDKfwrite(ptrf, size, nmemb, fp);
  } else {
    UINT n;
    INT s;

    const UCHAR *ptr = (const UCHAR *)ptrf;

    for (n = 0; n < nmemb; n++) {
      for (s = size - 1; s >= 0; s--) {
        FDKfwrite(ptr + s, 1, 1, fp);
      }
      ptr = ptr + size;
    }
  }
  return nmemb;
}

UINT FDKfread_EL(void *dst, INT size, UINT nmemb, FDKFILE *fp) {
  UINT n, s0, s1, err;
  UCHAR tmp, *ptr;
  UCHAR tmp24[3];

  /* Enforce alignment of 24 bit data. */
  if (size == 3) {
    ptr = (UCHAR *)dst;
    for (n = 0; n < nmemb; n++) {
      if ((err = FDKfread(tmp24, 1, 3, fp)) != 3) {
        return err;
      }
      *ptr++ = tmp24[0];
      *ptr++ = tmp24[1];
      *ptr++ = tmp24[2];
      /* Sign extension */
      if (tmp24[2] & 0x80) {
        *ptr++ = 0xff;
      } else {
        *ptr++ = 0;
      }
    }
    err = nmemb;
    size = sizeof(LONG);
  } else {
    if ((err = FDKfread(dst, size, nmemb, fp)) != nmemb) {
      return err;
    }
  }
  if (!IS_LITTLE_ENDIAN() && size > 1) {
    ptr = (UCHAR *)dst;
    for (n = 0; n < nmemb; n++) {
      for (s0 = 0, s1 = size - 1; s0 < s1; s0++, s1--) {
        tmp = ptr[s0];
        ptr[s0] = ptr[s1];
        ptr[s1] = tmp;
      }
      ptr += size;
    }
  }
  return err;
}

INT FDKfeof(FDKFILE *fp) { return feof((FILE *)fp); }

/* Global initialization/cleanup */

void FDKprintDisclaimer(void) {
  FDKprintf(
      "This program is protected by copyright law and international treaties.\n"
      "Any reproduction or distribution of this program, or any portion\n"
      "of it, may result in severe civil and criminal penalties, and will be\n"
      "prosecuted to the maximum extent possible under law.\n\n");
}