Standard options:
--logfile=FILE log tests and output to FILE [config.log]
--disable-logging do not log configure debug information
+ --fatal-warnings fail if any configure warning is generated
--prefix=PREFIX install in PREFIX [$prefix]
--bindir=DIR install binaries in DIR [PREFIX/bin]
--datadir=DIR install data files in DIR [PREFIX/share/ffmpeg]
--enable-gray enable full grayscale support (slower color)
--disable-swscale-alpha disable alpha channel support in swscale
+Program options:
+ --disable-programs do not build command line programs
+ --disable-ffmpeg disable ffmpeg build
+ --disable-ffplay disable ffplay build
+ --disable-ffprobe disable ffprobe build
+ --disable-ffserver disable ffserver build
+
Documentation options:
--disable-doc do not build documentation
--disable-htmlpages do not build HTML documentation pages
--disable-txtpages do not build text documentation pages
Component options:
- --disable-ffmpeg disable ffmpeg build
- --disable-ffplay disable ffplay build
- --disable-ffprobe disable ffprobe build
- --disable-ffserver disable ffserver build
--disable-avdevice disable libavdevice build
--disable-avcodec disable libavcodec build
--disable-avformat disable libavformat build
+ --disable-avutil disable libavutil build
--disable-swresample disable libswresample build
--disable-swscale disable libswscale build
--disable-postproc disable libpostproc build
}
print_enabled(){
- test x"$1" = x-n && end=" " && shift || end="\n"
suf=$1
shift
for v; do
- enabled $v && printf "%s$end" ${v%$suf};
+ enabled $v && printf "%s\n" ${v%$suf};
done
}
txtpages
"
+LIBRARY_LIST="
+ avcodec
+ avdevice
+ avfilter
+ avformat
+ avresample
+ avutil
+ swresample
+ swscale
+"
+
PROGRAM_LIST="
ffplay
ffprobe
CONFIG_LIST="
$COMPONENT_LIST
$DOCUMENT_LIST
+ $LIBRARY_LIST
$PROGRAM_LIST
- avcodec
- avdevice
- avfilter
- avformat
- avresample
avisynth
bzlib
crystalhd
small
sram
static
- swresample
- swscale
swscale_alpha
thumb
vaapi
'
ARCH_LIST='
+ aarch64
alpha
arm
avr32
$HAVE_LIST_PUB
$THREADS_LIST
$MATH_FUNCS
+ access
aligned_malloc
aligned_stack
alsa_asoundlib_h
clock_gettime
closesocket
cmov
+ CommandLineToArgvW
cpunop
CryptGenRandom
dcbzl
sched_getaffinity
sdl
sdl_video_size
+ SetConsoleTextAttribute
setmode
setrlimit
Sleep
CONFIG_EXTRA="
aandcttables
ac3dsp
- avutil
error_resilience
gcrypt
golomb
frei0r_filter_extralibs='$ldl'
frei0r_src_filter_deps="frei0r dlopen"
frei0r_src_filter_extralibs='$ldl'
+geq_filter_deps="gpl"
hqdn3d_filter_deps="gpl"
hue_filter_deps="gpl"
movie_filter_deps="avcodec avformat"
tinterlace_pad_test_deps="tinterlace_filter"
# libraries
-avdevice_deps="avcodec avformat"
-avformat_deps="avcodec"
+avcodec_deps="avutil"
+avdevice_deps="avutil avcodec avformat"
+avfilter_deps="avutil"
+avformat_deps="avutil avcodec"
+avresample_deps="avutil"
postproc_deps="gpl"
+swscale_deps="avutil"
# programs
ffmpeg_deps="avcodec avfilter avformat swscale swresample"
# configurable options
enable $PROGRAM_LIST
enable $DOCUMENT_LIST
-
-enable avcodec
-enable avdevice
-enable avfilter
-enable avformat
-enable avutil
+enable $(filter_out avresample $LIBRARY_LIST)
enable postproc
enable stripping
-enable swresample
-enable swscale
enable asm
enable debug
for opt do
optval="${opt#*=}"
case "$opt" in
- --extra-ldflags=*) add_ldflags $optval
- ;;
- --extra-libs=*) add_extralibs $optval
- ;;
- --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
- ;;
- --enable-debug=*) debuglevel="$optval"
- ;;
- --disable-everything)
- map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
- ;;
- --enable-random|--disable-random)
- action=${opt%%-random}
- do_random ${action#--} $COMPONENT_LIST
- ;;
- --enable-random=*|--disable-random=*)
- action=${opt%%-random=*}
- do_random ${action#--} $optval
- ;;
- --enable-*=*|--disable-*=*)
- eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
- is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
- eval list=\$$(toupper $thing)_LIST
- name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
- $action $(filter "$name" $list)
- ;;
- --enable-?*|--disable-?*)
- eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
- if is_in $option $COMPONENT_LIST; then
- test $action = disable && action=unset
- eval $action \$$(toupper ${option%s})_LIST
- elif is_in $option $CMDLINE_SELECT; then
- $action $option
- else
- die_unknown $opt
- fi
- ;;
- --list-*)
- NAME="${opt#--list-}"
- is_in $NAME $COMPONENT_LIST || die_unknown $opt
- NAME=${NAME%s}
- eval show_list $NAME \$$(toupper $NAME)_LIST
- ;;
- --help|-h) show_help
- ;;
- *)
- optname="${opt%%=*}"
- optname="${optname#--}"
- optname=$(echo "$optname" | sed 's/-/_/g')
- if is_in $optname $CMDLINE_SET; then
- eval $optname='$optval'
- elif is_in $optname $CMDLINE_APPEND; then
- append $optname "$optval"
- else
- die_unknown $opt
- fi
- ;;
+ --extra-ldflags=*) add_ldflags $optval
+ ;;
+ --extra-libs=*) add_extralibs $optval
+ ;;
+ --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
+ ;;
+ --enable-debug=*) debuglevel="$optval"
+ ;;
+ --disable-programs)
+ disable $PROGRAM_LIST
+ ;;
+ --disable-everything)
+ map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
+ ;;
+ --enable-random|--disable-random)
+ action=${opt%%-random}
+ do_random ${action#--} $COMPONENT_LIST
+ ;;
+ --enable-random=*|--disable-random=*)
+ action=${opt%%-random=*}
+ do_random ${action#--} $optval
+ ;;
+ --enable-*=*|--disable-*=*)
+ eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
+ is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
+ eval list=\$$(toupper $thing)_LIST
+ name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
+ list=$(filter "$name" $list)
+ [ "$list" = "" ] && warn "Option $opt did not match anything"
+ $action $list
+ ;;
+ --enable-?*|--disable-?*)
+ eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
+ if is_in $option $COMPONENT_LIST; then
+ test $action = disable && action=unset
+ eval $action \$$(toupper ${option%s})_LIST
+ elif is_in $option $CMDLINE_SELECT; then
+ $action $option
+ else
+ die_unknown $opt
+ fi
+ ;;
+ --list-*)
+ NAME="${opt#--list-}"
+ is_in $NAME $COMPONENT_LIST || die_unknown $opt
+ NAME=${NAME%s}
+ eval show_list $NAME \$$(toupper $NAME)_LIST
+ ;;
+ --help|-h) show_help
+ ;;
+ --fatal-warnings) enable fatal_warnings
+ ;;
+ *)
+ optname="${opt%%=*}"
+ optname="${optname#--}"
+ optname=$(echo "$optname" | sed 's/-/_/g')
+ if is_in $optname $CMDLINE_SET; then
+ eval $optname='$optval'
+ elif is_in $optname $CMDLINE_APPEND; then
+ append $optname "$optval"
+ else
+ die_unknown $opt
+ fi
+ ;;
esac
done
die "Sanity test failed."
fi
+ccc_flags(){
+ for flag; do
+ case $flag in
+ -std=c99) echo -c99 ;;
+ -mcpu=*) echo -arch ${flag#*=} ;;
+ -mieee) echo -ieee ;;
+ -O*|-fast) echo $flag ;;
+ -fno-math-errno) echo -assume nomath_errno ;;
+ -g) echo -g3 ;;
+ -Wall) echo -msg_enable level2 ;;
+ -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
+ -Wl,*) echo $flag ;;
+ -f*|-W*) ;;
+ *) echo $flag ;;
+ esac
+ done
+}
+
msvc_flags(){
for flag; do
case $flag in
prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
*-sse3) echo -xarch=sse3 ;;
core2) echo -xarch=ssse3 -xchip=core2 ;;
+ corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
+ corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
k8|opteron|athlon64|athlon-fx)
_type=ccc
_ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
_DEPFLAGS='-M'
- debuglevel=3
- _ldflags='-Wl,-z,now' # calls to libots crash without this
_cflags_speed='-fast'
_cflags_size='-O1'
+ _flags_filter=ccc_flags
elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
test -d "$sysroot" || die "No valid sysroot specified."
_type=armcc
# Deal with common $arch aliases
case "$arch" in
+ aarch64|arm64)
+ arch="aarch64"
+ ;;
arm*|iPad*)
arch="arm"
;;
# Add processor-specific flags
if test "$cpu" = generic; then
: do nothing
-elif enabled ppc; then
- case $(tolower $cpu) in
- 601|ppc601|powerpc601)
- cpuflags="-mcpu=601"
- disable altivec
- ;;
- 603*|ppc603*|powerpc603*)
- cpuflags="-mcpu=603"
- disable altivec
- ;;
- 604*|ppc604*|powerpc604*)
- cpuflags="-mcpu=604"
- disable altivec
- ;;
- g3|75*|ppc75*|powerpc75*)
- cpuflags="-mcpu=750 -mpowerpc-gfxopt"
- disable altivec
- ;;
- g4|745*|ppc745*|powerpc745*)
- cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
- ;;
- 74*|ppc74*|powerpc74*)
- cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
- ;;
- g5|970|ppc970|powerpc970)
- cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
- ;;
- power[3-7]*)
- cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
- ;;
- cell)
- cpuflags="-mcpu=cell"
- enable ldbrx
- ;;
- e500mc)
- cpuflags="-mcpu=e500mc"
- disable altivec
- ;;
- e500v2)
- cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
- disable altivec
- ;;
- e500)
- cpuflags="-mcpu=8540 -mhard-float"
- disable altivec
- ;;
- esac
-
-elif enabled x86; then
+elif enabled aarch64; then
case $cpu in
- i[345]86|pentium)
- cpuflags="-march=$cpu"
- disable mmx
- ;;
- # targets that do NOT support conditional mov (cmov)
- pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
- cpuflags="-march=$cpu"
- disable cmov
- ;;
- # targets that do support conditional mov (cmov)
- i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom|bdver*)
+ armv*)
cpuflags="-march=$cpu"
- enable cmov
- enable fast_cmov
;;
- # targets that do support conditional mov but on which it's slow
- pentium4|pentium4m|prescott|nocona)
- cpuflags="-march=$cpu"
- enable cmov
- disable fast_cmov
+ *)
+ cpuflags="-mcpu=$cpu"
;;
esac
-elif enabled sparc; then
+elif enabled alpha; then
- case $cpu in
- cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
- cpuflags="-mcpu=$cpu"
- disable vis
- ;;
- ultrasparc*|niagara[234])
- cpuflags="-mcpu=$cpu"
- ;;
- esac
+ cpuflags="-mcpu=$cpu"
elif enabled arm; then
;;
esac
-elif enabled alpha; then
+elif enabled avr32; then
- enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
+ case $cpu in
+ ap7[02]0[0-2])
+ subarch="avr32_ap"
+ cpuflags="-mpart=$cpu"
+ ;;
+ ap)
+ subarch="avr32_ap"
+ cpuflags="-march=$cpu"
+ ;;
+ uc3[ab]*)
+ subarch="avr32_uc"
+ cpuflags="-mcpu=$cpu"
+ ;;
+ uc)
+ subarch="avr32_uc"
+ cpuflags="-march=$cpu"
+ ;;
+ esac
elif enabled bfin; then
;;
esac
-elif enabled avr32; then
+elif enabled ppc; then
+
+ case $(tolower $cpu) in
+ 601|ppc601|powerpc601)
+ cpuflags="-mcpu=601"
+ disable altivec
+ ;;
+ 603*|ppc603*|powerpc603*)
+ cpuflags="-mcpu=603"
+ disable altivec
+ ;;
+ 604*|ppc604*|powerpc604*)
+ cpuflags="-mcpu=604"
+ disable altivec
+ ;;
+ g3|75*|ppc75*|powerpc75*)
+ cpuflags="-mcpu=750"
+ disable altivec
+ ;;
+ g4|745*|ppc745*|powerpc745*)
+ cpuflags="-mcpu=7450"
+ ;;
+ 74*|ppc74*|powerpc74*)
+ cpuflags="-mcpu=7400"
+ ;;
+ g5|970|ppc970|powerpc970)
+ cpuflags="-mcpu=970"
+ ;;
+ power[3-7]*)
+ cpuflags="-mcpu=$cpu"
+ ;;
+ cell)
+ cpuflags="-mcpu=cell"
+ enable ldbrx
+ ;;
+ e500mc)
+ cpuflags="-mcpu=e500mc"
+ disable altivec
+ ;;
+ e500v2)
+ cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
+ disable altivec
+ ;;
+ e500)
+ cpuflags="-mcpu=8540 -mhard-float"
+ disable altivec
+ ;;
+ esac
+
+elif enabled sparc; then
case $cpu in
- ap7[02]0[0-2])
- subarch="avr32_ap"
- cpuflags="-mpart=$cpu"
+ cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
+ cpuflags="-mcpu=$cpu"
+ disable vis
;;
- ap)
- subarch="avr32_ap"
+ ultrasparc*|niagara[234])
+ cpuflags="-mcpu=$cpu"
+ ;;
+ esac
+
+elif enabled x86; then
+
+ case $cpu in
+ i[345]86|pentium)
cpuflags="-march=$cpu"
+ disable mmx
;;
- uc3[ab]*)
- subarch="avr32_uc"
- cpuflags="-mcpu=$cpu"
+ # targets that do NOT support conditional mov (cmov)
+ pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
+ cpuflags="-march=$cpu"
+ disable cmov
;;
- uc)
- subarch="avr32_uc"
+ # targets that do support conditional mov (cmov)
+ i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
+ cpuflags="-march=$cpu"
+ enable cmov
+ enable fast_cmov
+ ;;
+ # targets that do support conditional mov but on which it's slow
+ pentium4|pentium4m|prescott|nocona)
cpuflags="-march=$cpu"
+ enable cmov
+ disable fast_cmov
;;
esac
SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
objformat="win32"
enable dos_paths
- add_cppflags -U__STRICT_ANSI__
;;
*-dos|freedos|opendos)
network_extralibs="-lsocket"
add_cppflags -U__STRICT_ANSI__
;;
linux)
- add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
enable dv1394
;;
irix*)
enable_weak os2threads
;;
gnu/kfreebsd)
- add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
+ add_cppflags -D_BSD_SOURCE
;;
gnu)
- add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
;;
qnx)
add_cppflags -D_QNX_SOURCE
if check_cpp_condition features.h "defined __UCLIBC__"; then
libc_type=uclibc
+ add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
elif check_cpp_condition features.h "defined __GLIBC__"; then
libc_type=glibc
+ add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
elif check_header _mingw.h; then
libc_type=mingw
check_cpp_condition _mingw.h \
fi
elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
libc_type=newlib
+ add_cppflags -U__STRICT_ANSI__
elif check_func_headers stdlib.h _get_doserrno; then
libc_type=msvcrt
add_compat strtod.o strtod=avpriv_strtod
add_cflags -pds=48 # incompatible redefinition of macro
fi
+if enabled_all ccc glibc; then
+ add_ldflags -Wl,-z,now # calls to libots crash without this
+fi
+
esc(){
echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
}
enabled mipsfpu && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
check_inline_asm mipsfpu '"madd.d $f0, $f2, $f4, $f6"'
+elif enabled parisc; then
+
+ if enabled gcc; then
+ case $($cc -dumpversion) in
+ 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
+ esac
+ fi
+
elif enabled ppc; then
enable local_aligned_8 local_aligned_16
# Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
+check_func access
check_func clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
check_func fcntl
check_func fork
check_func_headers windows.h GetProcessTimes
check_func_headers windows.h GetSystemTimeAsFileTime
check_func_headers windows.h MapViewOfFile
+check_func_headers windows.h SetConsoleTextAttribute
check_func_headers windows.h Sleep
check_func_headers windows.h VirtualAlloc
check_func_headers glob.h glob
fi
if ! disabled w32threads && ! enabled pthreads; then
- check_func _beginthreadex && enable w32threads
+ check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
fi
# check for some common methods of building with pthread support
fi
elif enabled ccc; then
# disable some annoying warnings
- add_cflags -msg_disable cvtu32to64
- add_cflags -msg_disable embedcomment
- add_cflags -msg_disable needconstext
- add_cflags -msg_disable nomainieee
- add_cflags -msg_disable ptrmismatch1
- add_cflags -msg_disable unreachcode
+ add_cflags -msg_disable bitnotint
+ add_cflags -msg_disable mixfuncvoid
+ add_cflags -msg_disable nonstandcast
+ add_cflags -msg_disable unsupieee
elif enabled gcc; then
check_optflags -fno-tree-vectorize
check_cflags -Werror=implicit-function-declaration
elif enabled clang; then
check_cflags -mllvm -stack-alignment=16
check_cflags -Qunused-arguments
+ check_cflags -Werror=implicit-function-declaration
+ check_cflags -Werror=missing-prototypes
elif enabled armcc; then
# 2523: use of inline assembler is deprecated
add_cflags -W${armcc_opt},--diag_suppress=2523
fi
case $target_os in
+ osf1)
+ enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
+ ;;
plan9)
add_cppflags -Dmain=plan9_main
;;
AS_C=$AS_C
AS_O=$AS_O
CC_C=$CC_C
+CC_E=$CC_E
CC_O=$CC_O
CXX_C=$CXX_C
CXX_O=$CXX_O
EOF
get_version(){
- lcname=$1
+ lcname=lib${1}
name=$(toupper $lcname)
file=$source_path/$lcname/version.h
eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
get_version_old LIBPOSTPROC libpostproc/version.h
-get_version libavcodec
-get_version libavdevice
-get_version libavfilter
-get_version libavformat
-get_version libavresample
-get_version libavutil
-get_version libswresample
-get_version libswscale
+map 'get_version $v' $LIBRARY_LIST
cat > $TMPH <<EOF
/* Automatically generated by configure - do not modify! */
cp_if_changed $TMPH libavutil/avconfig.h
-test -n "$WARNINGS" && printf "\n$WARNINGS"
+if test -n "$WARNINGS"; then
+ printf "\n$WARNINGS"
+ enabled fatal_warnings && exit 1
+fi
# build pkg-config files
EOF
}
-libavfilter_pc_deps=""
+libavfilter_pc_deps="libavutil = $LIBAVUTIL_VERSION"
enabled libavfilter_deps_avcodec && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
enabled libavfilter_deps_avformat && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
+enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample = $LIBAVRESAMPLE_VERSION,"
enabled libavfilter_deps_swscale && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
enabled libavfilter_deps_postproc && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
-pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
+pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
-pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
+pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
fix_ffmpeg_remote(){
git_remote_from=$1