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, 1.3.0,
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 subdir-objects])
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/libav/gstav.c])
24 dnl define the output header for config
25 AC_CONFIG_HEADERS([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, 300, 0, 300)
47 dnl *** required versions of GStreamer stuff ***
54 dnl *** autotools stuff ****
56 dnl allow for different autotools
57 AS_AUTOTOOLS_ALTERNATE
59 dnl Add parameters for aclocal
60 AC_SUBST(ACLOCAL_AMFLAGS, "-I m4 -I common/m4")
62 dnl *** check for arguments to configure ***
64 AG_GST_ARG_DISABLE_FATAL_WARNINGS
66 AG_GST_ARG_WITH_PKG_CONFIG_PATH
67 AG_GST_ARG_WITH_PACKAGE_NAME
68 AG_GST_ARG_WITH_PACKAGE_ORIGIN
72 dnl *** checks for platform ***
74 dnl * hardware/architecture *
76 dnl common/m4/gst-arch.m4
80 dnl *** checks for programs ***
86 dnl check if the compiler supports '-c' and '-o' options
89 AC_PATH_PROG(VALGRIND_PATH, valgrind, no)
90 AM_CONDITIONAL(HAVE_VALGRIND, test ! "x$VALGRIND_PATH" = "xno")
92 dnl check for documentation tools
96 AG_GST_PLUGIN_DOCS([1.3],[2.1])
98 dnl *** checks for libraries ***
100 dnl check for libm, for sin()
104 dnl *** checks for header files ***
106 dnl check if we have ANSI C header files
109 dnl *** checks for types/defines ***
111 dnl *** checks for structures ***
113 dnl *** checks for compiler characteristics ***
115 dnl *** checks for library functions ***
117 dnl *** checks for dependancy libraries ***
119 dnl checks for gstreamer
120 dnl uninstalled is selected preferentially -- see pkg-config(1)
121 AG_GST_CHECK_GST($GST_API_VERSION, [$GST_REQ])
122 AG_GST_CHECK_GST_BASE($GST_API_VERSION, [$GST_REQ])
123 AG_GST_CHECK_GST_PLUGINS_BASE($GST_API_VERSION, [$GST_PBREQ])
124 AG_GST_CHECK_GST_CHECK($GST_API_VERSION, [$GST_REQ], no)
125 AM_CONDITIONAL(HAVE_GST_CHECK, test "x$HAVE_GST_CHECK" = "xyes")
127 AC_MSG_NOTICE(Using GStreamer Core Plugins in $GST_PLUGINS_DIR)
128 AC_MSG_NOTICE(Using GStreamer Base Plugins in $GSTPB_PLUGINS_DIR)
130 dnl *** set variables based on configure arguments ***
132 dnl set location of plugin directory
135 dnl build static plugins or not
136 AC_MSG_CHECKING([whether to build static plugins or not])
140 [--enable-static-plugins],
141 [build static plugins @<:@default=no@:>@]),
143 [$enableval], [no], [], [yes], [],
144 [AC_MSG_ERROR([bad value "$enableval" for --enable-static-plugins])])],
145 [enable_static_plugins=no])
146 AC_MSG_RESULT([$enable_static_plugins])
147 if test "x$enable_static_plugins" = xyes; then
148 AC_DEFINE(GST_PLUGIN_BUILD_STATIC, 1,
149 [Define if static plugins should be built])
150 GST_PLUGIN_LIBTOOLFLAGS=""
152 GST_PLUGIN_LIBTOOLFLAGS="--tag=disable-static"
154 AC_SUBST(GST_PLUGIN_LIBTOOLFLAGS)
155 AM_CONDITIONAL(GST_PLUGIN_BUILD_STATIC, test "x$enable_static_plugins" = "xyes")
157 dnl define an ERROR_CFLAGS Makefile variable
158 AG_GST_SET_ERROR_CFLAGS($FATAL_WARNINGS, [
159 -Wmissing-declarations -Wmissing-prototypes -Wredundant-decls -Wundef
160 -Wwrite-strings -Wformat-nonliteral -Wformat-security -Wold-style-definition
161 -Winit-self -Wmissing-include-dirs -Waddress
162 -Waggregate-return -Wno-multichar -Wnested-externs ])
164 dnl define correct level for debugging messages
165 AG_GST_SET_LEVEL_DEFAULT($GST_GIT)
167 dnl *** finalize CFLAGS, LDFLAGS, LIBS ***
170 dnl GST_OPTION_CFLAGS: common flags for profiling, debugging, errors, ...
171 dnl GST_*: flags shared by built objects to link against GStreamer
172 dnl GST_ALL_LDFLAGS: linker flags shared by all
173 dnl GST_LIB_LDFLAGS: additional linker flags for all libaries
174 dnl GST_LT_LDFLAGS: library versioning of our libraries
175 dnl GST_PLUGIN_LDFLAGS: flags to be used for all plugins
177 dnl GST_OPTION_CFLAGS
178 if test "x$USE_DEBUG" = xyes; then
181 AC_SUBST(PROFILE_CFLAGS)
183 if test "x$GST_GIT" = "xyes"; then
184 DEPRECATED_CFLAGS="-DGST_DISABLE_DEPRECATED"
188 AC_SUBST(DEPRECATED_CFLAGS)
190 dnl every flag in GST_OPTION_CFLAGS can be overridden at make time
191 GST_OPTION_CFLAGS="\$(WARNING_CFLAGS) \$(ERROR_CFLAGS) \$(DEBUG_CFLAGS) \$(PROFILE_CFLAGS) \$(GCOV_CFLAGS) \$(OPT_CFLAGS) \$(DEPRECATED_CFLAGS)"
193 AC_SUBST(GST_OPTION_CFLAGS)
195 dnl FIXME: do we want to rename to GST_ALL_* ?
196 dnl prefer internal headers to already installed ones
197 dnl also add builddir include for enumtypes and marshal
198 dnl add GST_OPTION_CFLAGS, but overridable
199 GST_CFLAGS="$GST_CFLAGS"
200 GST_CFLAGS="-I\$(top_srcdir)/gst-libs -I\$(top_builddir)/gst-libs $GST_CFLAGS $GLIB_EXTRA_CFLAGS \$(GST_OPTION_CFLAGS)"
204 GST_ALL_LDFLAGS="-no-undefined"
205 AC_SUBST(GST_ALL_LDFLAGS)
207 dnl this really should only contain flags, not libs - they get added before
208 dnl whatevertarget_LIBS and -L flags here affect the rest of the linking
209 GST_PLUGIN_LDFLAGS="-module -avoid-version -export-symbols-regex '^[_]*gst_plugin_.*' $GST_ALL_LDFLAGS"
210 AC_SUBST(GST_PLUGIN_LDFLAGS)
212 dnl Add MacOSX specific flags
216 DARWIN_LDFLAGS="-Wl,-read_only_relocs,suppress"
222 AC_SUBST(DARWIN_LDFLAGS)
224 dnl *** Check for bz2
227 AC_MSG_CHECKING([for BZ2_bzlibVersion in -lbz2])
228 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <bzlib.h>]], [[const char *version = BZ2_bzlibVersion ();]])],[HAVE_BZ2=yes],[HAVE_BZ2=no])
229 AC_MSG_RESULT($HAVE_BZ2)
231 AM_CONDITIONAL(HAVE_BZ2, test "x$HAVE_BZ2" = "xyes")
232 if test "x$HAVE_BZ2" = "xno"; then
233 AC_WARN([libbz2 not found, matroska demuxer will not be able to read bz2 tracks])
237 [AC_HELP_STRING([--enable-lgpl], [build a LGPL licensed gst-libav])])
238 AM_CONDITIONAL(GST_LIBAV_ENABLE_LGPL, test "x$enable_lgpl" = "xyes")
239 if test "x$enable_lgpl" = "xyes"; then
240 AC_DEFINE([GST_LIBAV_ENABLE_LGPL], [], [Defined if building a LGPL-only version of gst-libav])
243 dnl *** configure external libs ***
245 HAVE_LIBAV_UNINSTALLED=1
247 AC_ARG_WITH(system-libav,
248 [AC_HELP_STRING([--with-system-libav], [use system Libav libraries])])
250 if test "x$with_system_libav" = "xyes"; then
251 PKG_CHECK_MODULES(LIBAV, libavformat libavcodec libavutil)
252 PKG_CHECK_MODULES(SWSCALE, libswscale libavutil)
253 saved_CPPFLAGS="$CPPFLAGS"
254 CPPFLAGS="$CPPFLAGS $LIBAV_CFLAGS"
255 AC_CHECK_HEADERS([avi.h])
256 CPPFLAGS="$saved_CPPFLAGS"
257 AC_DEFINE([LIBAV_SOURCE], ["system install"], [Describes where the Libav libraries come from.])
258 HAVE_LIBAV_UNINSTALLED=0
259 AC_MSG_NOTICE([Using system-installed libav code])
261 ======================================================================
262 WARNING: you have chosen to build gst-libav against a random
263 external version of Libav instead of building it against the tested
264 internal Libav snapshot that is included with gst-libav.
266 This is a very bad idea. So bad in fact that words cannot express
267 just how bad it is. Suffice to say that it is BAD.
269 The GStreamer developers cannot and will not support a gst-libav
270 built this way. Any bug reports that indicate there is an external
271 version of Libav involved will be closed immediately without further
274 The reason such a setup can't be supported is that the Libav API
275 and ABI is in constant flux, yet there aren't any official releases
276 of the Libav library to develop against. This makes it impossible
277 to guarantee that gst-libav will work reliably, or even compile,
278 with a randomly picked version Libav. Even if gst-libav compiles
279 and superficially appears to work fine against your chosen external
280 Libav version, that might just not be the case on other systems, or
281 even the same system at a later time, or when using decoders,
282 encoders, demuxers or muxers that have not been tested.
284 Please do not create or distribute binary packages of gst-Libav
285 that link against an external libav. Thank you!
286 ======================================================================
289 dnl No, this is not too extreme, we want people to see and read the above
293 AC_MSG_NOTICE([Using local Libav snapshot])
295 dnl libgstlibav.la: include dirs
296 LIBAV_CFLAGS="-I \$(top_srcdir)/gst-libs/ext/libav \
297 -I \$(top_builddir)/gst-libs/ext/libav \
298 -Wno-deprecated-declarations"
300 LIBAV_DEPS="\$(top_builddir)/gst-libs/ext/libav/libavformat/libavformat.a \
301 \$(top_builddir)/gst-libs/ext/libav/libavcodec/libavcodec.a \
302 \$(top_builddir)/gst-libs/ext/libav/libavutil/libavutil.a"
303 if test "x$enable_static_plugins" = xyes; then
304 dnl with static linking we can't use the .a archive directly as they would
305 dnl be included in the final libgstlibav.a as a file and won't be usable.
306 dnl libav*.a must be copied to the final destination too
307 LIBAV_LIBS="-lavformat -lavcodec -lavutil"
309 dnl libgstlibav.la: libs to statically link to
310 LIBAV_LIBS="$LIBAV_DEPS"
314 SWSCALE_CFLAGS="-I \$(top_srcdir)/gst-libs/ext/libav \
315 -I \$(top_builddir)/gst-libs/ext/libav \
316 -Wno-deprecated-declarations"
318 SWSCALE_DEPS="\$(top_builddir)/gst-libs/ext/libav/libswscale/libswscale.a \
319 \$(top_builddir)/gst-libs/ext/libav/libavutil/libavutil.a"
320 if test "x$enable_static_plugins" = xyes; then
321 dnl with static linking we can't use the .a archive directly as they would
322 dnl be included in the final libgstswscale.a as a file and won't be usable.
323 dnl libav*.a must be copied to the final destination too
324 SWSCALE_LIBS="-lswscale -lavutil"
326 dnl libgstswscale.la: libs to statically link to
327 SWSCALE_LIBS="$SWSCALE_DEPS"
330 LIBAV_SUBDIRS=gst-libs
331 AC_DEFINE(HAVE_AVI_H)
332 AC_DEFINE([LIBAV_SOURCE], ["local snapshot"], [Describes where the Libav libraries come from.])
334 AC_ARG_WITH(libav-extra-configure,
335 AC_HELP_STRING([--with-libav-extra-configure="xxx"],
336 [extra configure options for internal libav ./configure script]),,
340 emblibav_configure_args="--prefix=$prefix"
342 # Enable pic and static so that we get .a files, but with PIC code.
343 emblibav_configure_args="$emblibav_configure_args --disable-avserver --disable-avplay\
344 --disable-avconv --disable-avprobe --enable-static --enable-pic \
345 --disable-encoder=flac --disable-decoder=cavs --disable-protocols --disable-devices\
346 --disable-network --disable-hwaccels --disable-dxva2 --disable-vdpau\
347 --disable-filters --disable-doc --enable-optimizations"
349 if test "x$enable_lgpl" != "xyes"; then
350 emblibav_configure_args="$emblibav_configure_args --enable-gpl"
353 # if we are cross-compiling, tell libav so
359 target_os=`echo $host_os | sed 's/-gnu//'`
363 if test "x$cross_compiling" = xyes; then
364 emblibav_configure_args="$emblibav_configure_args --enable-cross-compile \
365 --target-os=$target_os --arch=$host_cpu --cross-prefix=$host_alias-"
370 emblibav_configure_args="$emblibav_configure_args --enable-memalign-hack"
371 WIN32_LIBS="-lws2_32"
378 if test x"$AR" != x; then
379 emblibav_configure_args="$emblibav_configure_args --ar=\\\"\\\$AR\\\""
382 if test x"$AS" != x; then
383 emblibav_configure_args="$emblibav_configure_args --as=\\\"\\\$CC\\\""
386 if test x"$CC" != x; then
387 emblibav_configure_args="$emblibav_configure_args --cc=\\\"\\\$CC\\\""
390 if test x"$LD" != x; then
391 emblibav_configure_args="$emblibav_configure_args --ld=\\\"\\\$CC\\\""
394 if test x"$NM" != x; then
395 emblibav_configure_args="$emblibav_configure_args --nm=\\\"\\\$NM\\\""
398 dnl checks for extra enable/disable flags
399 LIBAV_OPTS=`cd $srcdir/gst-libs/ext/libav && ./configure --help`
400 # Let's check if we can disable the building of the libav binary
401 can_disable=`echo "$LIBAV_OPTS" | grep 'disable-ffmpeg'`
402 if test "$can_disable" != ""; then
403 emblibav_configure_args="$emblibav_configure_args --disable-ffmpeg"
405 dnl check if libswscale needs enabling explicitly
406 can_enable=`echo "$LIBAV_OPTS" | grep 'enable-swscale'`
407 if test "$can_enable" != ""; then
408 emblibav_configure_args="$emblibav_configure_args --enable-swscale"
411 # append extra configure options to emblibav_configure_args if needed
412 if test "x$with_libav_extra_configure" != "xno"; then
413 emblibav_configure_args="$emblibav_configure_args $with_libav_extra_configure"
416 AC_SUBST(LIBAV_CO_DIR)
418 AC_SUBST(LIBAV_REVISION)
419 AC_SUBST(LIBAV_EXTERNALS_REVISION)
420 AC_CONFIG_COMMANDS([configure-embedded-libav],
421 [echo "Configuring included Libav instance with args $emblibav_configure_args"
423 dnl Don't put path on the configure call when not needed, as FFmpeg's configure relies on it
424 dnl to detect out-of-tree builds
425 if test -z "$srcdir" -o "$srcdir" = .; then
428 confcmd="$ac_abs_top_srcdir"/gst-libs/ext/libav/configure
431 AS_MKDIR_P(["$ac_top_build_prefix"gst-libs/ext/libav])
432 cd "$ac_top_build_prefix"gst-libs/ext/libav &&
433 eval "$confcmd $emblibav_configure_args" ||
434 AC_MSG_ERROR([Failed to configure embedded Libav tree])
437 [emblibav_configure_args="$emblibav_configure_args"])
438 AC_MSG_NOTICE([Using included Libav code])
441 AC_SUBST(LIBAV_CFLAGS)
444 AC_SUBST(LIBAV_SUBDIRS)
445 AC_SUBST(SWSCALE_CFLAGS)
446 AC_SUBST(SWSCALE_DEPS)
447 AC_SUBST(SWSCALE_LIBS)
450 if test x$HAVE_LIBAV_UNINSTALLED = x1; then
451 AC_DEFINE(HAVE_LIBAV_UNINSTALLED, [], [Defined if building against uninstalled Libav source])
453 AM_CONDITIONAL(HAVE_LIBAV_UNINSTALLED, test x$HAVE_LIBAV_UNINSTALLED = x1)
462 ext/libswscale/Makefile
464 gst-libs/ext/Makefile
466 docs/version.entities
471 pkgconfig/gstreamer-plugins-libav-uninstalled.pc