3 dnl initialize autoconf
4 dnl when going to/from release please set the nano (fourth number) right !
5 dnl releases only do Wall, cvs and prerelease does Werror too
6 AC_INIT(GStreamer libav, 0.11.90.1,
7 http://bugzilla.gnome.org/enter_bug.cgi?product=GStreamer,
12 dnl initialize automake
13 AM_INIT_AUTOMAKE([-Wno-portability 1.11 no-dist-gzip dist-xz tar-ustar])
15 dnl define PACKAGE_VERSION_* variables
18 dnl check if this is a release version
19 AS_NANO(GST_GIT="no", GST_GIT="yes")
21 dnl can autoconf find the source ?
22 AC_CONFIG_SRCDIR([ext/ffmpeg/gstffmpeg.c])
24 dnl define the output header for config
25 AM_CONFIG_HEADER([config.h])
27 dnl AM_MAINTAINER_MODE only provides the option to configure to enable it
28 AM_MAINTAINER_MODE([enable])
30 dnl sets host_* variables
33 dnl use pretty build output with automake >= 1.11
34 m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])],
35 [AM_DEFAULT_VERBOSITY=1
36 AC_SUBST(AM_DEFAULT_VERBOSITY)])
38 dnl our libraries and install dirs use major.minor as a version
39 GST_API_VERSION=$PACKAGE_VERSION_MAJOR.$PACKAGE_VERSION_MINOR
40 dnl we override it here if we need to for the release candidate of new series
42 AC_SUBST(GST_API_VERSION)
44 AG_GST_LIBTOOL_PREPARE
45 AS_LIBTOOL(GST, 0, 0, 0)
47 dnl *** required versions of GStreamer stuff ***
51 dnl *** autotools stuff ****
53 dnl allow for different autotools
54 AS_AUTOTOOLS_ALTERNATE
56 dnl Add parameters for aclocal
57 AC_SUBST(ACLOCAL_AMFLAGS, "-I m4 -I common/m4")
59 dnl *** check for arguments to configure ***
61 AG_GST_ARG_DISABLE_FATAL_WARNINGS
63 AG_GST_ARG_WITH_PKG_CONFIG_PATH
64 AG_GST_ARG_WITH_PACKAGE_NAME
65 AG_GST_ARG_WITH_PACKAGE_ORIGIN
68 dnl *** checks for platform ***
70 dnl * hardware/architecture *
72 dnl common/m4/gst-arch.m4
76 dnl *** checks for programs ***
82 dnl check if the compiler supports '-c' and '-o' options
85 AC_PATH_PROG(VALGRIND_PATH, valgrind, no)
86 AM_CONDITIONAL(HAVE_VALGRIND, test ! "x$VALGRIND_PATH" = "xno")
88 dnl check for documentation tools
92 AG_GST_PLUGIN_DOCS([1.3],[2.1])
94 dnl *** checks for libraries ***
96 dnl check for libm, for sin()
100 dnl *** checks for header files ***
102 dnl check if we have ANSI C header files
105 dnl *** checks for types/defines ***
107 dnl *** checks for structures ***
109 dnl *** checks for compiler characteristics ***
111 dnl *** checks for library functions ***
113 dnl *** checks for dependancy libraries ***
115 dnl checks for gstreamer
116 dnl uninstalled is selected preferentially -- see pkg-config(1)
117 AG_GST_CHECK_GST($GST_API_VERSION, [$GST_REQ])
118 AG_GST_CHECK_GST_BASE($GST_API_VERSION, [$GST_REQ])
119 AG_GST_CHECK_GST_PLUGINS_BASE($GST_API_VERSION, [$GST_REQ])
120 AG_GST_CHECK_GST_CHECK($GST_API_VERSION, [$GST_REQ], no)
121 AM_CONDITIONAL(HAVE_GST_CHECK, test "x$HAVE_GST_CHECK" = "xyes")
123 AC_MSG_NOTICE(Using GStreamer Core Plugins in $GST_PLUGINS_DIR)
124 AC_MSG_NOTICE(Using GStreamer Base Plugins in $GSTPB_PLUGINS_DIR)
126 dnl orc is required for cpu detection for libpostproc
127 ORC_CHECK([$ORC_REQ])
129 dnl *** set variables based on configure arguments ***
131 dnl set location of plugin directory
134 dnl define an ERROR_CFLAGS Makefile variable
135 AG_GST_SET_ERROR_CFLAGS($FATAL_WARNINGS, [
136 -Wmissing-declarations -Wmissing-prototypes -Wredundant-decls -Wundef
137 -Wwrite-strings -Wformat-nonliteral -Wformat-security -Wold-style-definition
138 -Winit-self -Wmissing-include-dirs -Waddress
139 -Waggregate-return -Wno-multichar -Wnested-externs ])
141 dnl define correct level for debugging messages
142 AG_GST_SET_LEVEL_DEFAULT($GST_GIT)
144 dnl *** finalize CFLAGS, LDFLAGS, LIBS ***
147 dnl GST_OPTION_CFLAGS: common flags for profiling, debugging, errors, ...
148 dnl GST_*: flags shared by built objects to link against GStreamer
149 dnl GST_ALL_LDFLAGS: linker flags shared by all
150 dnl GST_LIB_LDFLAGS: additional linker flags for all libaries
151 dnl GST_LT_LDFLAGS: library versioning of our libraries
152 dnl GST_PLUGIN_LDFLAGS: flags to be used for all plugins
154 dnl GST_OPTION_CFLAGS
155 if test "x$USE_DEBUG" = xyes; then
158 AC_SUBST(PROFILE_CFLAGS)
160 if test "x$GST_GIT" = "xyes"; then
161 DEPRECATED_CFLAGS="-DGST_DISABLE_DEPRECATED"
165 AC_SUBST(DEPRECATED_CFLAGS)
167 dnl every flag in GST_OPTION_CFLAGS can be overridden at make time
168 GST_OPTION_CFLAGS="\$(WARNING_CFLAGS) \$(ERROR_CFLAGS) \$(DEBUG_CFLAGS) \$(PROFILE_CFLAGS) \$(GCOV_CFLAGS) \$(OPT_CFLAGS) \$(DEPRECATED_CFLAGS)"
170 AC_SUBST(GST_OPTION_CFLAGS)
172 dnl FIXME: do we want to rename to GST_ALL_* ?
173 dnl prefer internal headers to already installed ones
174 dnl also add builddir include for enumtypes and marshal
175 dnl add GST_OPTION_CFLAGS, but overridable
176 GST_CFLAGS="$GST_CFLAGS -DGST_USE_UNSTABLE_API"
177 GST_CFLAGS="-I\$(top_srcdir)/gst-libs -I\$(top_builddir)/gst-libs $GST_CFLAGS $GLIB_EXTRA_CFLAGS \$(GST_OPTION_CFLAGS)"
181 GST_ALL_LDFLAGS="-no-undefined"
182 AC_SUBST(GST_ALL_LDFLAGS)
184 dnl this really should only contain flags, not libs - they get added before
185 dnl whatevertarget_LIBS and -L flags here affect the rest of the linking
186 GST_PLUGIN_LDFLAGS="-module -avoid-version -export-symbols-regex '^[_]*gst_plugin_desc.*' $GST_ALL_LDFLAGS"
187 AC_SUBST(GST_PLUGIN_LDFLAGS)
189 dnl Add MacOSX specific flags
193 DARWIN_LDFLAGS="-Wl,-read_only_relocs,suppress"
199 AC_SUBST(DARWIN_LDFLAGS)
201 dnl *** Check for bz2
202 AG_GST_CHECK_LIBHEADER(BZ2, bz2, BZ2_bzlibVersion, , bzlib.h, have_bz2=yes, have_bz2=no)
203 AM_CONDITIONAL(HAVE_BZ2, test "x$have_bz2" = "xyes")
204 if test "x$have_bz2" = "xno"; then
205 AC_WARN([libbz2 not found, matroska demuxer will not be able to read bz2 tracks])
209 [AC_HELP_STRING([--enable-lgpl], [build a LGPL licensed gst-libav])])
210 AM_CONDITIONAL(GST_LIBAV_ENABLE_LGPL, test "x$enable_lgpl" = "xyes")
211 if test "x$enable_lgpl" = "xyes"; then
212 AC_DEFINE([GST_LIBAV_ENABLE_LGPL], [], [Defined if building a LGPL-only version of gst-libav])
215 dnl *** configure external libs ***
217 HAVE_LIBAV_UNINSTALLED=1
219 AC_ARG_WITH(system-libav,
220 [AC_HELP_STRING([--with-system-libav], [use system Libav libraries])])
222 if test "x$with_system_libav" = "xyes"; then
223 PKG_CHECK_MODULES(LIBAV, libavformat libavcodec libavutil)
224 if test "x$enable_lgpl" != "xyes"; then
225 PKG_CHECK_MODULES(POSTPROC, libpostproc libavcodec libavutil)
227 PKG_CHECK_MODULES(SWSCALE, libswscale libavutil)
228 saved_CPPFLAGS="$CPPFLAGS"
229 CPPFLAGS="$CPPFLAGS $LIBAV_CFLAGS"
230 AC_CHECK_HEADERS([avi.h])
231 CPPFLAGS="$saved_CPPFLAGS"
232 AC_DEFINE([LIBAV_SOURCE], ["system install"], [Describes where the Libav libraries come from.])
233 HAVE_LIBAV_UNINSTALLED=0
234 AC_MSG_NOTICE([Using system-installed libav code])
236 ======================================================================
237 WARNING: you have chosen to build gst-libav against a random
238 external version of Libav instead of building it against the tested
239 internal Libav snapshot that is included with gst-libav.
241 This is a very bad idea. So bad in fact that words cannot express
242 just how bad it is. Suffice to say that it is BAD.
244 The GStreamer developers cannot and will not support a gst-libav
245 built this way. Any bug reports that indicate there is an external
246 version of Libav involved will be closed immediately without further
249 The reason such a setup can't be supported is that the Libav API
250 and ABI is in constant flux, yet there aren't any official releases
251 of the Libav library to develop against. This makes it impossible
252 to guarantee that gst-libav will work reliably, or even compile,
253 with a randomly picked version Libav. Even if gst-libav compiles
254 and superficially appears to work fine against your chosen external
255 Libav version, that might just not be the case on other systems, or
256 even the same system at a later time, or when using decoders,
257 encoders, demuxers or muxers that have not been tested.
259 Please do not create or distribute binary packages of gst-Libav
260 that link against an external libav. Thank you!
261 ======================================================================
264 dnl No, this is not too extreme, we want people to see and read the above
268 AC_MSG_NOTICE([Using local Libav snapshot])
270 dnl libgstlibav.la: include dirs
271 LIBAV_CFLAGS="-I \$(top_srcdir)/gst-libs/ext/libav/libavutil \
272 -I \$(top_srcdir)/gst-libs/ext/libav/libavformat \
273 -I \$(top_srcdir)/gst-libs/ext/libav/libavcodec \
274 -I \$(top_srcdir)/gst-libs/ext/libav \
275 -I \$(top_builddir)/gst-libs/ext/libav \
276 -Wno-deprecated-declarations"
278 dnl libgstlibav.la: libs to statically link to
279 LIBAV_LIBS="\$(top_builddir)/gst-libs/ext/libav/libavformat/libavformat.a \
280 \$(top_builddir)/gst-libs/ext/libav/libavcodec/libavcodec.a \
281 \$(top_builddir)/gst-libs/ext/libav/libavutil/libavutil.a"
283 POSTPROC_CFLAGS="-I \$(top_srcdir)/gst-libs/ext/libav/libpostproc \
284 -I \$(top_srcdir)/gst-libs/ext/libav/libavutil \
285 -I \$(top_srcdir)/gst-libs/ext/libav/libavcodec \
286 -I \$(top_srcdir)/gst-libs/ext/libav \
287 -I \$(top_builddir)/gst-libs/ext/libav \
288 -Wno-deprecated-declarations"
290 dnl libgstpostproc.la: libs to statically link to
291 POSTPROC_LIBS="\$(top_builddir)/gst-libs/ext/libav/libpostproc/libpostproc.a \
292 \$(top_builddir)/gst-libs/ext/libav/libavutil/libavutil.a"
295 SWSCALE_CFLAGS="-I \$(top_srcdir)/gst-libs/ext/libav/libswscale \
296 -I \$(top_srcdir)/gst-libs/ext/libav/libavutil \
297 -I \$(top_srcdir)/gst-libs/ext/libav \
298 -I \$(top_builddir)/gst-libs/ext/libav \
299 -Wno-deprecated-declarations"
301 dnl libgstswscale.la: libs to statically link to
302 SWSCALE_LIBS="\$(top_builddir)/gst-libs/ext/libav/libswscale/libswscale.a \
303 \$(top_builddir)/gst-libs/ext/libav/libavutil/libavutil.a"
305 LIBAV_SUBDIRS=gst-libs
306 AC_DEFINE(HAVE_AVI_H)
307 AC_DEFINE([LIBAV_SOURCE], ["local snapshot"], [Describes where the Libav libraries come from.])
309 AC_ARG_WITH(libav-extra-configure,
310 AC_HELP_STRING([--with-libav-extra-configure="xxx"],
311 [extra configure options for internal libav ./configure script]),,
315 emblibav_configure_args="--prefix=$prefix"
317 # Enable pic and static so that we get .a files, but with PIC code.
318 emblibav_configure_args="$emblibav_configure_args --disable-avserver --disable-avplay\
319 --disable-ffmpeg --disable-avprobe --enable-static --enable-pic \
320 --disable-encoder=flac --disable-decoder=cavs --disable-protocols --disable-devices\
321 --disable-network --disable-hwaccels --disable-filters --disable-doc\
322 --enable-optimizations"
324 if test "x$enable_lgpl" != "xyes"; then
325 emblibav_configure_args="$emblibav_configure_args --enable-postproc \
329 # if we are cross-compiling, tell libav so
330 target_os=`echo $host_os | sed 's/-gnu//'`
331 if test "x$cross_compiling" = xyes; then
332 emblibav_configure_args="$emblibav_configure_args --enable-cross-compile \
333 --target-os=$target_os --arch=$host_cpu --cross-prefix=$host_alias-"
337 # Unfortunately, in Mac OS 10.5 the current rev of libav builds
338 # some non-PIC code into the .a file. See
339 # http://trac.macosforge.org/projects/macports/ticket/13725 for more
342 emblibav_configure_args="$emblibav_configure_args --disable-mmx --disable-altivec"
345 emblibav_configure_args="$emblibav_configure_args --enable-memalign-hack"
346 WIN32_LIBS="-lws2_32"
353 dnl checks for extra enable/disable flags
354 LIBAV_OPTS="(cd $srcdir/gst-libs/ext/libav && ./configure --help)"
355 # Let's check if we can disable the building of the libav binary
356 can_disable=`echo "$LIBAV_OPTS" | grep 'disable-ffmpeg'`
357 if test "$can_disable" != ""; then
358 emblibav_configure_args="$emblibav_configure_args --disable-ffmpeg"
360 dnl check if libswscale needs enabling explicitly
361 can_enable=`echo "$LIBAV_OPTS" | grep 'enable-swscale'`
362 if test "$can_enable" != ""; then
363 emblibav_configure_args="$emblibav_configure_args --enable-swscale"
366 # append extra configure options to emblibav_configure_args if needed
367 if test "x$with_libav_extra_configure" != "xno"; then
368 emblibav_configure_args="$emblibav_configure_args $with_libav_extra_configure"
371 AC_SUBST(LIBAV_CO_DIR)
373 AC_SUBST(LIBAV_REVISION)
374 AC_SUBST(LIBAV_EXTERNALS_REVISION)
375 AC_CONFIG_COMMANDS([configure-embedded-libav],
376 [echo "Configuring included Libav instance with args $emblibav_configure_args"
378 dnl Don't put path on the configure call when not needed, as FFmpeg's configure relies on it
379 dnl to detect out-of-tree builds
380 if test -z "$srcdir" -o "$srcdir" = .; then
383 confcmd="$ac_abs_top_srcdir"/gst-libs/ext/libav/configure
386 AS_MKDIR_P(["$ac_top_build_prefix"gst-libs/ext/libav])
387 cd "$ac_top_build_prefix"gst-libs/ext/libav &&
388 eval "$confcmd $emblibav_configure_args" ||
389 AC_MSG_ERROR([Failed to configure embedded Libav tree])
392 [emblibav_configure_args="$emblibav_configure_args"])
393 AC_MSG_NOTICE([Using included Libav code])
396 AC_SUBST(LIBAV_CFLAGS)
398 AC_SUBST(LIBAV_SUBDIRS)
399 AC_SUBST(POSTPROC_CFLAGS)
400 AC_SUBST(POSTPROC_LIBS)
401 AC_SUBST(SWSCALE_CFLAGS)
402 AC_SUBST(SWSCALE_LIBS)
405 if test x$HAVE_LIBAV_UNINSTALLED = x1; then
406 AC_DEFINE(HAVE_LIBAV_UNINSTALLED, [], [Defined if building against uninstalled Libav source])
408 AM_CONDITIONAL(HAVE_LIBAV_UNINSTALLED, test x$HAVE_LIBAV_UNINSTALLED = x1)
417 ext/libpostproc/Makefile
418 ext/libswscale/Makefile
420 gst-libs/ext/Makefile
422 docs/version.entities