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dnl Todo: Add Audacity / FFmpeg license
dnl
dnl Please increment the serial number below whenever you alter this macro
dnl for the benefit of automatic macro update systems
# audacity_checklib_ffmpeg.m4 serial 1
dnl Check for a copy of ffmpeg, whoose headers we will use for the importer
AC_DEFUN([AUDACITY_CHECKLIB_FFMPEG], [
AC_ARG_WITH(ffmpeg,
[AS_HELP_STRING([--with-ffmpeg],
[use ffmpeg for import and export support ])],
FFMPEG_ARGUMENT=$withval,
FFMPEG_ARGUMENT="unspecified")
if false ; then
AC_DEFINE(USE_FFMPEG, 1,
[Define if ffmpeg (multi-format import and export) support should be enabled])
fi
dnl Check for a system copy of ffmpeg to use. For now I'm insiting on a
dnl current version to make maintenance easier. We need both avcodec and
dnl avformat, so I'm going to check for both
PKG_CHECK_MODULES(AVCODEC, libavcodec >= 51.53,
avcodec_available_system="yes",
avcodec_available_system="no")
PKG_CHECK_MODULES(AVFORMAT, libavformat >= 52.12,
avformat_available_system="yes",
avformat_available_system="no")
PKG_CHECK_MODULES(AVUTIL, libavutil,
libavutil_available_system="yes",
libavutil_available_system="no")
FFMPEG_SYSTEM_AVAILABLE="no"
if test "$avcodec_available_system" = "yes" -a "$avformat_available_system" = "yes" -a "$libavutil_available_system" = "yes"; then
FFMPEG_SYSTEM_AVAILABLE="yes"
FFMPEG_SYSTEM_CXXFLAGS="$AVCODEC_CFLAGS $AVFORMAT_CFLAGS $AVUTIL_CFLAGS"
FFMPEG_SYSTEM_CPPSYMBOLS="USE_FFMPEG"
if test "x$dynamic_loading" = "xno"; then
FFMPEG_SYSTEM_LIBS="$AVCODEC_LIBS $AVFORMAT_LIBS $AVUTIL_LIBS"
AC_DEFINE(DISABLE_DYNAMIC_LOADING_FFMPEG, 1, [Use system FFmpeg library and disable dynamic loading of it.])
fi
dnl build the extra object files needed to use FFmpeg. Paths inside
dnl the audacity src/ dir, as this is subsitiuted into src/Makefile.in
FFMPEG_SYSTEM_OPTOBJS="import/ImportFFmpeg.o export/ExportFFmpeg.o \
export/ExportFFmpegDialogs.o"
AC_MSG_NOTICE([FFmpeg library available as system library])
fi
if test "x$FFMPEG_SYSTEM_AVAILABLE" = "xno" ; then
AC_MSG_NOTICE([FFmpeg library NOT available as system library])
fi
dnl see if ffmpeg is available locally, or rather that we have some headers
dnl in lib-src/ffmpeg/ we can use.
FFMPEG_LOCAL_AVAILABLE="no"
AC_CHECK_FILE(${srcdir}/lib-src/ffmpeg/libavcodec/avcodec.h,
avcodec_h_found="yes",
avcodec_h_found="no")
AC_CHECK_FILE(${srcdir}/lib-src/ffmpeg/libavformat/avformat.h,
avformat_h_found="yes",
avformat_h_found="no")
if test "x$avcodec_h_found" = "xyes" ; then
if test "x$avformat_h_found" = "xyes" ; then
FFMPEG_LOCAL_AVAILABLE="yes"
FFMPEG_LOCAL_LIBS=""
FFMPEG_LOCAL_CXXFLAGS='-I$(top_srcdir)/lib-src/ffmpeg'
FFMPEG_LOCAL_CPPSYMBOLS="USE_FFMPEG"
dnl build the extra object files needed to use FFmpeg. Paths inside
dnl the audacity src/ dir, as this is subsitiuted into src/Makefile.in
FFMPEG_LOCAL_OPTOBJS="import/ImportFFmpeg.o export/ExportFFmpeg.o \
export/ExportFFmpegDialogs.o"
AC_MSG_NOTICE([FFmpeg headers are available in the local tree])
fi
fi
if test "x$FFMPEG_LOCAL_AVAILABLE" = "xno" ; then
AC_MSG_NOTICE([ffmpeg library is NOT available in the local tree])
fi
FFMPEG_MIMETYPES="audio/aac;audio/mp4;audio/x-ms-wma;"
])
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