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author | Vignesh Venkatasubramanian <vigneshv@google.com> | 2014-02-20 10:50:35 -0800 |
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committer | Vignesh Venkatasubramanian <vigneshv@google.com> | 2014-02-20 22:40:47 -0800 |
commit | 2bd8b54017b5320bc0c1df9bf86f4cdc9f8db242 (patch) | |
tree | 46d79debe81d3b1db1f11b1c79b4edeb9318fedc /configure.ac | |
parent | 2010ddce09e55d41b92a36444a11cd747bfaf867 (diff) | |
download | libopus-2bd8b54017b5320bc0c1df9bf86f4cdc9f8db242.tar.gz |
Adding libopus source and Android.mk
Adding libopus source code and Android.mk. The source is based
on latest stable release libopus 1.1.
Change-Id: I0841894ee0766829e6d0e1b8379e6f6f87b0852f
Diffstat (limited to 'configure.ac')
-rw-r--r-- | configure.ac | 458 |
1 files changed, 458 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac new file mode 100644 index 00000000..0ba4a807 --- /dev/null +++ b/configure.ac @@ -0,0 +1,458 @@ +dnl Process this file with autoconf to produce a configure script. -*-m4-*- + +dnl The package_version file will be automatically synced to the git revision +dnl by the update_version script when configured in the repository, but will +dnl remain constant in tarball releases unless it is manually edited. +m4_define([CURRENT_VERSION], + m4_esyscmd([ ./update_version 2>/dev/null || true + if test -e package_version; then + . ./package_version + printf "$PACKAGE_VERSION" + else + printf "unknown" + fi ])) + +AC_INIT([opus],[CURRENT_VERSION],[opus@xiph.org]) + +AC_CONFIG_SRCDIR(src/opus_encoder.c) +AC_CONFIG_MACRO_DIR([m4]) + +dnl enable silent rules on automake 1.11 and later +m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])]) + +# For libtool. +dnl Please update these for releases. +OPUS_LT_CURRENT=5 +OPUS_LT_REVISION=0 +OPUS_LT_AGE=5 + +AC_SUBST(OPUS_LT_CURRENT) +AC_SUBST(OPUS_LT_REVISION) +AC_SUBST(OPUS_LT_AGE) + +AM_INIT_AUTOMAKE([no-define]) +AM_MAINTAINER_MODE([enable]) + +AC_CANONICAL_HOST +AC_MINGW32 +AM_PROG_LIBTOOL +AM_PROG_CC_C_O + +AC_PROG_CC_C99 +AC_C_CONST +AC_C_INLINE + +AM_PROG_AS + +AC_DEFINE([OPUS_BUILD], [], [This is a build of OPUS]) + +#Use a hacked up version of autoconf's AC_C_RESTRICT because it's not +#strong enough a test to detect old buggy versions of GCC (e.g. 2.95.3) +#Note: Both this and the test for variable-size arrays below are also +# done by AC_PROG_CC_C99, but not thoroughly enough apparently. +AC_CACHE_CHECK([for C/C++ restrict keyword], ac_cv_c_restrict, + [ac_cv_c_restrict=no + # The order here caters to the fact that C++ does not require restrict. + for ac_kw in __restrict __restrict__ _Restrict restrict; do + AC_COMPILE_IFELSE([AC_LANG_PROGRAM( + [[typedef int * int_ptr; + int foo (int_ptr $ac_kw ip, int * $ac_kw baz[]) { + return ip[0]; + }]], + [[int s[1]; + int * $ac_kw t = s; + t[0] = 0; + return foo(t, (void *)0)]])], + [ac_cv_c_restrict=$ac_kw]) + test "$ac_cv_c_restrict" != no && break + done + ]) + +AH_VERBATIM([restrict], +[/* Define to the equivalent of the C99 'restrict' keyword, or to + nothing if this is not supported. Do not define if restrict is + supported directly. */ +#undef restrict +/* Work around a bug in Sun C++: it does not support _Restrict or + __restrict__, even though the corresponding Sun C compiler ends up with + "#define restrict _Restrict" or "#define restrict __restrict__" in the + previous line. Perhaps some future version of Sun C++ will work with + restrict; if so, hopefully it defines __RESTRICT like Sun C does. */ +#if defined __SUNPRO_CC && !defined __RESTRICT +# define _Restrict +# define __restrict__ +#endif]) + +case $ac_cv_c_restrict in + restrict) ;; + no) AC_DEFINE([restrict], []) ;; + *) AC_DEFINE_UNQUOTED([restrict], [$ac_cv_c_restrict]) ;; +esac + +AC_MSG_CHECKING(for C99 variable-size arrays) +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], + [[static int x; char a[++x]; a[sizeof a - 1] = 0; int N; return a[0];]])], + [ has_var_arrays=yes + use_alloca="no (using var arrays)" + AC_DEFINE([VAR_ARRAYS], [1], [Use C99 variable-size arrays]) + ],[ + has_var_arrays=no + ]) +AC_MSG_RESULT([$has_var_arrays]) + +AS_IF([test "$has_var_arrays" = "no"], + [ + AC_CHECK_HEADERS([alloca.h]) + AC_MSG_CHECKING(for alloca) + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alloca.h>]], + [[int foo=10; int *array = alloca(foo);]])], + [ use_alloca=yes; + AC_DEFINE([USE_ALLOCA], [], [Make use of alloca]) + ],[ + use_alloca=no + ]) + AC_MSG_RESULT([$use_alloca]) + ]) + +LT_LIB_M + +AC_ARG_ENABLE([fixed-point], + [AS_HELP_STRING([--enable-fixed-point], + [compile without floating point (for machines without a fast enough FPU)])],, + [enable_fixed_point=no]) + +AS_IF([test "$enable_fixed_point" = "yes"],[ + enable_float="no" + AC_DEFINE([FIXED_POINT], [1], [Compile as fixed-point (for machines without a fast enough FPU)]) + PC_BUILD="fixed-point" +],[ + enable_float="yes"; + PC_BUILD="floating-point" +]) + +AM_CONDITIONAL([FIXED_POINT], [test "$enable_fixed_point" = "yes"]) + +AC_ARG_ENABLE([fixed-point-debug], + [AS_HELP_STRING([--enable-fixed-point-debug], [debug fixed-point implementation])],, + [enable_fixed_point_debug=no]) + +AS_IF([test "$enable_fixed_point_debug" = "yes"],[ + AC_DEFINE([FIXED_DEBUG], [1], [Debug fixed-point implementation]) +]) + +AC_ARG_ENABLE([float_api], + [AS_HELP_STRING([--disable-float-api], + [compile without the floating point API (for machines with no float library)])],, + [enable_float_api=yes]) + +AM_CONDITIONAL([DISABLE_FLOAT_API], [test "$enable_float_api" = "no"]) + +AS_IF([test "$enable_float_api" = "no"],[ + AC_DEFINE([DISABLE_FLOAT_API], [1], [Do not build the float API]) +]) + +AC_ARG_ENABLE([custom-modes], + [AS_HELP_STRING([--enable-custom-modes], [enable non-Opus modes, e.g. 44.1 kHz & 2^n frames])],, + [enable_custom_modes=no]) + +AS_IF([test "$enable_custom_modes" = "yes"],[ + AC_DEFINE([CUSTOM_MODES], [1], [Custom modes]) + PC_BUILD="$PC_BUILD, custom modes" +]) + +AM_CONDITIONAL([CUSTOM_MODES], [test "$enable_custom_modes" = "yes"]) + +has_float_approx=no +#case "$host_cpu" in +#i[[3456]]86 | x86_64 | powerpc64 | powerpc32 | ia64) +# has_float_approx=yes +# ;; +#esac + +AC_ARG_ENABLE([float-approx], + [AS_HELP_STRING([--enable-float-approx], [enable fast approximations for floating point])], + [if test "$enable_float_approx" = "yes"; then + AC_WARN([Floating point approximations are not supported on all platforms.]) + fi + ], + [enable_float_approx=$has_float_approx]) + +AS_IF([test "$enable_float_approx" = "yes"],[ + AC_DEFINE([FLOAT_APPROX], [1], [Float approximations]) +]) + +AC_ARG_ENABLE([asm], + [AS_HELP_STRING([--disable-asm], [Disable assembly optimizations])],, + [enable_asm=yes]) + +AC_ARG_ENABLE([rtcd], + [AS_HELP_STRING([--disable-rtcd], [Disable run-time CPU capabilities detection])],, + [enable_rtcd=yes]) + +rtcd_support=no +cpu_arm=no + +AS_IF([test x"${enable_asm}" = x"yes"],[ + inline_optimization="No ASM for your platform, please send patches" + case $host_cpu in + arm*) + dnl Currently we only have asm for fixed-point + AS_IF([test "$enable_float" != "yes"],[ + cpu_arm=yes + AC_DEFINE([OPUS_ARM_ASM], [], [Make use of ARM asm optimization]) + AS_GCC_INLINE_ASSEMBLY( + [inline_optimization="ARM"], + [inline_optimization="disabled"] + ) + AS_ASM_ARM_EDSP([OPUS_ARM_INLINE_EDSP=1],[OPUS_ARM_INLINE_EDSP=0]) + AS_ASM_ARM_MEDIA([OPUS_ARM_INLINE_MEDIA=1], + [OPUS_ARM_INLINE_MEDIA=0]) + AS_ASM_ARM_NEON([OPUS_ARM_INLINE_NEON=1],[OPUS_ARM_INLINE_NEON=0]) + AS_IF([test x"$inline_optimization" = x"ARM"],[ + AM_CONDITIONAL([OPUS_ARM_INLINE_ASM],[true]) + AC_DEFINE([OPUS_ARM_INLINE_ASM], 1, + [Use generic ARMv4 inline asm optimizations]) + AS_IF([test x"$OPUS_ARM_INLINE_EDSP" = x"1"],[ + AC_DEFINE([OPUS_ARM_INLINE_EDSP], [1], + [Use ARMv5E inline asm optimizations]) + inline_optimization="$inline_optimization (EDSP)" + ]) + AS_IF([test x"$OPUS_ARM_INLINE_MEDIA" = x"1"],[ + AC_DEFINE([OPUS_ARM_INLINE_MEDIA], [1], + [Use ARMv6 inline asm optimizations]) + inline_optimization="$inline_optimization (Media)" + ]) + AS_IF([test x"$OPUS_ARM_INLINE_NEON" = x"1"],[ + AC_DEFINE([OPUS_ARM_INLINE_NEON], 1, + [Use ARM NEON inline asm optimizations]) + inline_optimization="$inline_optimization (NEON)" + ]) + ]) + dnl We need Perl to translate RVCT-syntax asm to gas syntax. + AC_CHECK_PROG([HAVE_PERL], perl, yes, no) + AS_IF([test x"$HAVE_PERL" = x"yes"],[ + AM_CONDITIONAL([OPUS_ARM_EXTERNAL_ASM],[true]) + asm_optimization="ARM" + AS_IF([test x"$OPUS_ARM_INLINE_EDSP" = x"1"], [ + OPUS_ARM_PRESUME_EDSP=1 + OPUS_ARM_MAY_HAVE_EDSP=1 + ], + [ + OPUS_ARM_PRESUME_EDSP=0 + OPUS_ARM_MAY_HAVE_EDSP=0 + ]) + AS_IF([test x"$OPUS_ARM_INLINE_MEDIA" = x"1"], [ + OPUS_ARM_PRESUME_MEDIA=1 + OPUS_ARM_MAY_HAVE_MEDIA=1 + ], + [ + OPUS_ARM_PRESUME_MEDIA=0 + OPUS_ARM_MAY_HAVE_MEDIA=0 + ]) + AS_IF([test x"$OPUS_ARM_INLINE_NEON" = x"1"], [ + OPUS_ARM_PRESUME_NEON=1 + OPUS_ARM_MAY_HAVE_NEON=1 + ], + [ + OPUS_ARM_PRESUME_NEON=0 + OPUS_ARM_MAY_HAVE_NEON=0 + ]) + AS_IF([test x"$enable_rtcd" = x"yes"],[ + AS_IF([test x"$OPUS_ARM_MAY_HAVE_EDSP" != x"1"],[ + AC_MSG_NOTICE( + [Trying to force-enable armv5e EDSP instructions...]) + AS_ASM_ARM_EDSP_FORCE([OPUS_ARM_MAY_HAVE_EDSP=1]) + ]) + AS_IF([test x"$OPUS_ARM_MAY_HAVE_MEDIA" != x"1"],[ + AC_MSG_NOTICE( + [Trying to force-enable ARMv6 media instructions...]) + AS_ASM_ARM_MEDIA_FORCE([OPUS_ARM_MAY_HAVE_MEDIA=1]) + ]) + AS_IF([test x"$OPUS_ARM_MAY_HAVE_NEON" != x"1"],[ + AC_MSG_NOTICE( + [Trying to force-enable NEON instructions...]) + AS_ASM_ARM_NEON_FORCE([OPUS_ARM_MAY_HAVE_NEON=1]) + ]) + ]) + rtcd_support= + AS_IF([test x"$OPUS_ARM_MAY_HAVE_EDSP" = x"1"],[ + AC_DEFINE(OPUS_ARM_MAY_HAVE_EDSP, 1, + [Define if assembler supports EDSP instructions]) + AS_IF([test x"$OPUS_ARM_PRESUME_EDSP" = x"1"],[ + AC_DEFINE(OPUS_ARM_PRESUME_EDSP, 1, + [Define if binary requires EDSP instruction support]) + asm_optimization="$asm_optimization (EDSP)" + ], + [rtcd_support="$rtcd_support (EDSP)"] + ) + ]) + AC_SUBST(OPUS_ARM_MAY_HAVE_EDSP) + AS_IF([test x"$OPUS_ARM_MAY_HAVE_MEDIA" = x"1"],[ + AC_DEFINE(OPUS_ARM_MAY_HAVE_MEDIA, 1, + [Define if assembler supports ARMv6 media instructions]) + AS_IF([test x"$OPUS_ARM_PRESUME_MEDIA" = x"1"],[ + AC_DEFINE(OPUS_ARM_PRESUME_MEDIA, 1, + [Define if binary requires ARMv6 media instruction support]) + asm_optimization="$asm_optimization (Media)" + ], + [rtcd_support="$rtcd_support (Media)"] + ) + ]) + AC_SUBST(OPUS_ARM_MAY_HAVE_MEDIA) + AS_IF([test x"$OPUS_ARM_MAY_HAVE_NEON" = x"1"],[ + AC_DEFINE(OPUS_ARM_MAY_HAVE_NEON, 1, + [Define if compiler supports NEON instructions]) + AS_IF([test x"$OPUS_ARM_PRESUME_NEON" = x"1"], [ + AC_DEFINE(OPUS_ARM_PRESUME_NEON, 1, + [Define if binary requires NEON instruction support]) + asm_optimization="$asm_optimization (NEON)" + ], + [rtcd_support="$rtcd_support (NEON)"] + ) + ]) + AC_SUBST(OPUS_ARM_MAY_HAVE_NEON) + dnl Make sure turning on RTCD gets us at least one + dnl instruction set. + AS_IF([test x"$rtcd_support" != x""], + [rtcd_support=ARM"$rtcd_support"], + [rtcd_support="no"] + ) + ], + [ + AC_MSG_WARN( + [*** ARM assembly requires perl -- disabling optimizations]) + asm_optimization="(missing perl dependency for ARM)" + ]) + ]) + ;; + esac +],[ + inline_optimization="disabled" + asm_optimization="disabled" +]) + +AM_CONDITIONAL([CPU_ARM], [test "$cpu_arm" = "yes"]) +AM_CONDITIONAL([OPUS_ARM_INLINE_ASM], + [test x"${inline_optimization:0:3}" = x"ARM"]) +AM_CONDITIONAL([OPUS_ARM_EXTERNAL_ASM], + [test x"${asm_optimization:0:3}" = x"ARM"]) + +AS_IF([test x"$enable_rtcd" = x"yes"],[ + AS_IF([test x"$rtcd_support" != x"no"],[ + AC_DEFINE([OPUS_HAVE_RTCD], [1], + [Use run-time CPU capabilities detection]) + OPUS_HAVE_RTCD=1 + AC_SUBST(OPUS_HAVE_RTCD) + ]) +],[ + rtcd_support="disabled" +]) + +AC_ARG_ENABLE([assertions], + [AS_HELP_STRING([--enable-assertions],[enable additional software error checking])],, + [enable_assertions=no]) + +AS_IF([test "$enable_assertions" = "yes"], [ + AC_DEFINE([ENABLE_ASSERTIONS], [1], [Assertions]) +]) + +AC_ARG_ENABLE([fuzzing], + [AS_HELP_STRING([--enable-fuzzing],[causes the encoder to make random decisions])],, + [enable_fuzzing=no]) + +AS_IF([test "$enable_fuzzing" = "yes"], [ + AC_DEFINE([FUZZING], [1], [Fuzzing]) +]) + +AC_ARG_ENABLE([doc], + [AS_HELP_STRING([--disable-doc], [Do not build API documentation])],, + [enable_doc=yes]) + +AS_IF([test "$enable_doc" = "yes"], [ + AC_CHECK_PROG(HAVE_DOXYGEN, [doxygen], [yes], [no]) +],[ + HAVE_DOXYGEN=no +]) + +AM_CONDITIONAL([HAVE_DOXYGEN], [test "$HAVE_DOXYGEN" = "yes"]) + +AC_ARG_ENABLE([extra-programs], + [AS_HELP_STRING([--disable-extra-programs], [Do not build extra programs (demo and tests)])],, + [enable_extra_programs=yes]) + +AM_CONDITIONAL([EXTRA_PROGRAMS], [test "$enable_extra_programs" = "yes"]) + + +saved_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -fvisibility=hidden" +AC_MSG_CHECKING([if ${CC} supports -fvisibility=hidden]) +AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])], + [ AC_MSG_RESULT([yes]) ], + [ AC_MSG_RESULT([no]) + CFLAGS="$saved_CFLAGS" + ]) + +CFLAGS="$CFLAGS -W" + +warn_CFLAGS="-Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wstrict-prototypes" +saved_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS $warn_CFLAGS" +AC_MSG_CHECKING([if ${CC} supports ${warn_CFLAGS}]) +AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])], + [ AC_MSG_RESULT([yes]) ], + [ AC_MSG_RESULT([no]) + CFLAGS="$saved_CFLAGS" + ]) + +saved_LIBS="$LIBS" +LIBS="$LIBS $LIBM" +AC_CHECK_FUNCS([lrintf]) +AC_CHECK_FUNCS([lrint]) +LIBS="$saved_LIBS" + +AC_CHECK_FUNCS([__malloc_hook]) + +AC_SUBST([PC_BUILD]) + +AC_CONFIG_FILES([ + Makefile + opus.pc + opus-uninstalled.pc + celt/arm/armopts.s + doc/Makefile + doc/Doxyfile +]) +AC_CONFIG_HEADERS([config.h]) + +AC_OUTPUT + +AC_MSG_NOTICE([ +------------------------------------------------------------------------ + $PACKAGE_NAME $PACKAGE_VERSION: Automatic configuration OK. + + Compiler support: + + C99 var arrays: ................ ${has_var_arrays} + C99 lrintf: .................... ${ac_cv_func_lrintf} + Use alloca: .................... ${use_alloca} + + General configuration: + + Floating point support: ........ ${enable_float} + Fast float approximations: ..... ${enable_float_approx} + Fixed point debugging: ......... ${enable_fixed_point_debug} + Inline Assembly Optimizations: . ${inline_optimization} + External Assembly Optimizations: ${asm_optimization} + Run-time CPU detection: ........ ${rtcd_support} + Custom modes: .................. ${enable_custom_modes} + Assertion checking: ............ ${enable_assertions} + Fuzzing: ....................... ${enable_fuzzing} + + API documentation: ............. ${enable_doc} + Extra programs: ................ ${enable_extra_programs} +------------------------------------------------------------------------ + + Type "make; make install" to compile and install + Type "make check" to run the test suite +]) + |