--enable-nonfree allow use of nonfree code, the resulting libs
and binaries will be unredistributable [no]
--disable-doc do not build documentation
- --disable-ffmpeg disable ffmpeg build
--disable-avconv disable avconv build
--disable-avplay disable avplay build
--disable-avprobe disable avprobe build
--disable-avcodec disable libavcodec build
--disable-avformat disable libavformat build
--disable-swscale disable libswscale build
- --disable-postproc disable libpostproc build
--disable-avfilter disable video filter support [no]
--disable-pthreads disable pthreads [auto]
--disable-w32threads disable Win32 threads [auto]
--disable-dxva2 disable DXVA2 code
--enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
--enable-hardcoded-tables use hardcoded tables instead of runtime generation
+ --disable-safe-bitstream-reader
+ disable buffer boundary checking in bitreaders
+ (faster, but may crash)
--enable-memalign-hack emulate memalign, interferes with memory debuggers
--disable-everything disable all components listed below
--disable-encoder=NAME disable encoder NAME
--enable-libnut enable NUT (de)muxing via libnut,
native (de)muxer exists [no]
--enable-libopenjpeg enable JPEG 2000 decoding via OpenJPEG [no]
+ --enable-libpulse enable Pulseaudio input via libpulse [no]
--enable-librtmp enable RTMP[E] support via librtmp [no]
--enable-libschroedinger enable Dirac support via libschroedinger [no]
--enable-libspeex enable Speex support via libspeex [no]
--enable-libxavs enable AVS encoding via xavs [no]
--enable-libxvid enable Xvid encoding via xvidcore,
native MPEG-4/Xvid encoder exists [no]
- --enable-mlib enable Sun medialib [no]
--enable-openssl enable openssl [no]
--enable-zlib enable zlib [autodetect]
--disable-armvfp disable ARM VFP optimizations
--disable-iwmmxt disable iwmmxt optimizations
--disable-mmi disable MMI optimizations
- --disable-neon disable neon optimizations
+ --disable-neon disable NEON optimizations
--disable-vis disable VIS optimizations
--disable-yasm disable use of yasm assembler
--enable-pic build position-independent code
--enable-extra-warnings enable more compiler warnings
--samples=PATH location of test samples for FATE, if not set use
\$FATE_SAMPLES at make invocation time.
+ --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
+ should be used only for debugging purposes)
NOTE: Object files are built at the place where configure is launched.
EOF
}
print_config_asm(){
- enabled $1 && echo "%define $2"
+ enabled $1 && v=1 || v=0
+ echo "%define $2 $v"
}
print_config(){
protocols
"
+PROGRAM_LIST="
+ avconv
+ avplay
+ avprobe
+ avserver
+"
+
CONFIG_LIST="
$COMPONENT_LIST
+ $PROGRAM_LIST
aandct
ac3dsp
avcodec
dwt
dxva2
fastdiv
- ffmpeg
- avconv
- avplay
- avprobe
- avserver
fft
frei0r
gnutls
golomb
gpl
gray
+ h264chroma
h264dsp
h264pred
hardcoded_tables
lsp
mdct
memalign_hack
- mlib
mpegaudiodsp
network
nonfree
openssl
pic
- postproc
rdft
rtpdec
runtime_cpudetect
+ safe_bitstream_reader
shared
sinewin
small
vda
vdpau
version3
+ xmm_clobber_test
x11grab
zlib
"
asm_mod_y
attribute_may_alias
attribute_packed
- bswap
closesocket
cmov
dcbzl
dev_bktr_ioctl_bt848_h
dev_bktr_ioctl_meteor_h
dev_ic_bt8xx_h
- dev_video_meteor_ioctl_meteor_h
dev_video_bktr_ioctl_bt848_h
+ dev_video_meteor_ioctl_meteor_h
dlfcn_h
dlopen
dos_paths
fork
getaddrinfo
gethrtime
+ GetProcessAffinityMask
GetProcessMemoryInfo
GetProcessTimes
getrusage
gnu_as
- struct_rusage_ru_maxrss
ibm_asm
inet_aton
inline_asm
memalign
mkstemp
mmap
+ poll_h
posix_memalign
round
roundf
+ sched_getaffinity
sdl
sdl_video_size
setmode
+ setrlimit
sndio_h
socklen_t
soundcard_h
- poll_h
- setrlimit
strerror_r
strptime
strtok_r
struct_addrinfo
struct_ipv6_mreq
+ struct_rusage_ru_maxrss
struct_sockaddr_in6
struct_sockaddr_sa_len
struct_sockaddr_storage
+ struct_v4l2_frmivalenum_discrete
symver
- symver_gnu_asm
symver_asm_label
+ symver_gnu_asm
+ sysconf
+ sysctl
sys_mman_h
+ sys_param_h
sys_resource_h
sys_select_h
sys_soundcard_h
fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
fast_unaligned_if_any="armv6 ppc x86"
-need_memalign="altivec neon sse"
inline_asm_deps="!tms470"
+need_memalign="altivec neon sse"
symver_if_any="symver_asm_label symver_gnu_asm"
h263_vaapi_hwaccel_select="vaapi h263_decoder"
h263i_decoder_select="h263_decoder"
h263p_encoder_select="h263_encoder"
-h264_decoder_select="golomb h264dsp h264pred"
+h264_decoder_select="golomb h264chroma h264dsp h264pred"
h264_dxva2_hwaccel_deps="dxva2api_h"
h264_dxva2_hwaccel_select="dxva2 h264_decoder"
h264_vaapi_hwaccel_select="vaapi h264_decoder"
mjpeg_encoder_select="aandct"
mlp_decoder_select="mlp_parser"
mp1_decoder_select="mpegaudiodsp"
-mp2_decoder_select="mpegaudiodsp"
-mp3adu_decoder_select="mpegaudiodsp"
-mp3_decoder_select="mpegaudiodsp"
-mp3on4_decoder_select="mpegaudiodsp"
mp1float_decoder_select="mpegaudiodsp"
+mp2_decoder_select="mpegaudiodsp"
mp2float_decoder_select="mpegaudiodsp"
+mp3_decoder_select="mpegaudiodsp"
+mp3adu_decoder_select="mpegaudiodsp"
mp3adufloat_decoder_select="mpegaudiodsp"
mp3float_decoder_select="mpegaudiodsp"
+mp3on4_decoder_select="mpegaudiodsp"
mp3on4float_decoder_select="mpegaudiodsp"
-mpeg1video_encoder_select="aandct"
-mpeg2video_encoder_select="aandct"
-mpeg4_decoder_select="h263_decoder mpeg4video_parser"
-mpeg4_encoder_select="h263_encoder"
+mpc7_decoder_select="mpegaudiodsp"
+mpc8_decoder_select="mpegaudiodsp"
mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
+mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
+mpeg_xvmc_decoder_select="mpegvideo_decoder"
mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
+mpeg1video_encoder_select="aandct"
mpeg2_dxva2_hwaccel_deps="dxva2api_h"
mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
+mpeg2video_encoder_select="aandct"
+mpeg4_decoder_select="h263_decoder mpeg4video_parser"
+mpeg4_encoder_select="h263_encoder"
mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
-mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
-mpeg_xvmc_decoder_select="mpegvideo_decoder"
msmpeg4v1_decoder_select="h263_decoder"
msmpeg4v1_encoder_select="h263_encoder"
msmpeg4v2_decoder_select="h263_decoder"
rv10_encoder_select="h263_encoder"
rv20_decoder_select="h263_decoder"
rv20_encoder_select="h263_encoder"
-rv30_decoder_select="golomb h264pred"
-rv40_decoder_select="golomb h264pred"
+rv30_decoder_select="golomb h264chroma h264pred"
+rv40_decoder_select="golomb h264chroma h264pred"
shorten_decoder_select="golomb"
sipr_decoder_select="lsp"
snow_decoder_select="dwt"
snow_encoder_select="aandct dwt"
svq1_encoder_select="aandct"
-svq3_decoder_select="golomb h264dsp h264pred"
+svq3_decoder_select="golomb h264chroma h264dsp h264pred"
svq3_decoder_suggest="zlib"
theora_decoder_select="vp3_decoder"
tiff_decoder_suggest="zlib"
truehd_decoder_select="mlp_decoder"
tscc_decoder_select="zlib"
twinvq_decoder_select="mdct lsp sinewin"
-vc1_decoder_select="h263_decoder"
-vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
+vc1_decoder_select="h263_decoder h264chroma"
+vc1_dxva2_hwaccel_deps="dxva2api_h"
vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
vc1_vdpau_decoder_select="vdpau vc1_decoder"
vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
# parsers
-h264_parser_select="golomb h264dsp h264pred"
+h264_parser_select="golomb h264chroma h264dsp h264pred"
# external libraries
libdirac_decoder_deps="libdirac !libschroedinger"
-libdirac_encoder_deps="libdirac"
libfaac_encoder_deps="libfaac"
libgsm_decoder_deps="libgsm"
libgsm_encoder_deps="libgsm"
pulse_indev_deps="libpulse"
sndio_indev_deps="sndio_h"
sndio_outdev_deps="sndio_h"
-v4l_indev_deps="linux_videodev_h"
v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
vfwcap_indev_extralibs="-lavicap32"
http_protocol_deps="network"
http_protocol_select="tcp_protocol"
https_protocol_select="tls_protocol"
+librtmp_protocol_deps="librtmp"
+librtmpe_protocol_deps="librtmp"
+librtmps_protocol_deps="librtmp"
+librtmpt_protocol_deps="librtmp"
+librtmpte_protocol_deps="librtmp"
mmsh_protocol_select="http_protocol"
mmst_protocol_deps="network"
+rtmp_protocol_deps="!librtmp_protocol"
rtmp_protocol_select="tcp_protocol"
rtp_protocol_select="udp_protocol"
tcp_protocol_deps="network"
# libraries
avdevice_deps="avcodec avformat"
avformat_deps="avcodec"
-postproc_deps="gpl"
# programs
-ffmpeg_deps="avcodec avformat swscale"
-ffmpeg_select="buffer_filter"
avconv_deps="avcodec avformat swscale"
-avconv_select="buffer_filter"
avplay_deps="avcodec avformat swscale sdl"
avplay_select="rdft"
avprobe_deps="avcodec avformat"
-avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
+avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
avserver_extralibs='$ldl'
doc_deps="texi2html"
seek_lavf_mxf_d10_test_deps="mxf_d10_test"
test_deps _encoder _decoder \
- adpcm_g726=g726 \
adpcm_ima_qt \
adpcm_ima_wav \
adpcm_ms \
asv2 \
bmp \
dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd" \
- dvvideo="dv dv50" \
+ dvvideo="dv dv_411 dv50" \
ffv1 \
flac \
flashsv \
flv \
+ adpcm_g726=g726 \
gif \
h261 \
h263="h263 h263p" \
mjpeg="jpg mjpeg ljpeg" \
mp2 \
mpeg1video="mpeg mpeg1b" \
- mpeg2video="mpeg2 mpeg2thread" \
- mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc" \
+ mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
+ mpeg2video="mpeg2thread mpeg2thread_ilace" \
+ mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr" \
+ mpeg4="mpeg4thread error rc" \
msmpeg4v3=msmpeg4 \
msmpeg4v2 \
pbm=pbmpipe \
wav \
yuv4mpegpipe=yuv4mpeg \
-ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
+ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder"
mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
# default parameters
pkg_config_default=pkg-config
ranlib="ranlib"
yasmexe="yasm"
-nogas=":"
nm_opts='-g'
+nogas=":"
# machine
arch_default=$(uname -m)
host_os=$target_os_default
# configurable options
+enable $PROGRAM_LIST
+
enable avcodec
enable avdevice
enable avfilter
enable avformat
enable avutil
+enable swscale
+
enable asm
enable debug
enable doc
enable fastdiv
-enable ffmpeg
-enable avconv
-enable avplay
-enable avprobe
-enable avserver
enable network
enable optimizations
-enable postproc
-enable protocols
+enable safe_bitstream_reader
enable static
-enable swscale
enable swscale_alpha
# build settings
PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
+ALL_COMPONENTS="
+ $BSF_LIST
+ $DECODER_LIST
+ $DEMUXER_LIST
+ $ENCODER_LIST
+ $FILTER_LIST
+ $HWACCEL_LIST
+ $INDEV_LIST
+ $MUXER_LIST
+ $OUTDEV_LIST
+ $PARSER_LIST
+ $PROTOCOL_LIST
+"
+
find_tests(){
map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
}
LAVFI_TESTS=$(find_tests lavfi)
SEEK_TESTS=$(find_tests seek seek_)
+ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
+
pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
for n in $COMPONENT_LIST; do
eval ${n}_if_any="\$$v"
done
-enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
+enable $ARCH_EXT_LIST $ALL_TESTS
die_unknown(){
echo "Unknown option \"$1\"."
trap 'rm -f -- $TMPFILES' EXIT
-tmpfile TMPC .c
-tmpfile TMPE $EXESUF
-tmpfile TMPH .h
-tmpfile TMPO .o
-tmpfile TMPS .S
-tmpfile TMPV .ver
-tmpfile TMPSH .sh
tmpfile TMPASM .asm
+tmpfile TMPC .c
+tmpfile TMPE $EXESUF
+tmpfile TMPH .h
+tmpfile TMPO .o
+tmpfile TMPS .S
+tmpfile TMPSH .sh
+tmpfile TMPV .ver
unset -f mktemp
die "Sanity test failed."
fi
+filter_asflags=echo
filter_cflags=echo
filter_cppflags=echo
-filter_asflags=echo
if $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
cc_type=llvm_gcc
enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
enabled mmx2 && check_asm mmx2 '"pmaxub %mm0, %mm1"'
- check_asm bswap '"bswap %%eax" ::: "%eax"'
-
if ! disabled_any asm mmx yasm; then
if check_cmd $yasmexe --version; then
enabled x86_64 && yasm_extra="-m amd64"
check_func strerror_r
check_func strptime
check_func strtok_r
+check_func sched_getaffinity
+check_func sysconf
+check_func sysctl
check_func_headers io.h setmode
check_func_headers lzo/lzo1x.h lzo1x_999_compress
check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
+check_func_headers windows.h GetProcessAffinityMask
check_func_headers windows.h GetProcessTimes
check_func_headers windows.h MapViewOfFile
check_func_headers windows.h VirtualAlloc
check_header malloc.h
check_header poll.h
check_header sys/mman.h
+check_header sys/param.h
check_header sys/resource.h
check_header sys/select.h
check_header vdpau/vdpau.h
check_header vdpau/vdpau_x11.h
check_header X11/extensions/XvMClib.h
-check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
-
disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
enabled libdirac && require_pkg_config dirac \
- "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h" \
- "dirac_decoder_init dirac_encoder_init"
+ "libdirac_decoder/dirac_parser.h" \
+ "dirac_decoder_init"
enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
enabled libgsm && require libgsm gsm/gsm.h gsm_create -lgsm
die "ERROR: libx264 version must be >= 0.118."; }
enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
-enabled mlib && require mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
enabled openssl && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
check_header linux/fb.h
-check_header linux/videodev.h
check_header linux/videodev2.h
+check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
+
check_header sys/videoio.h
check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
# check for VDA header
if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
- enable vda && add_ldflags -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
+ enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
fi
if ! disabled vdpau && enabled vdpau_vdpau_h; then
# add some linker flags
check_ldflags -Wl,--warn-common
-check_ldflags -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
+check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
+enabled xmm_clobber_test && \
+ check_ldflags -Wl,--wrap,avcodec_open2 \
+ -Wl,--wrap,avcodec_decode_audio4 \
+ -Wl,--wrap,avcodec_decode_video2 \
+ -Wl,--wrap,avcodec_decode_subtitle2 \
+ -Wl,--wrap,avcodec_encode_audio2 \
+ -Wl,--wrap,avcodec_encode_video \
+ -Wl,--wrap,avcodec_encode_subtitle \
+ -Wl,--wrap,sws_scale || \
+ disable xmm_clobber_test
+
echo "X{};" > $TMPV
if test_ldflags -Wl,--version-script,$TMPV; then
append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
check_cflags -fno-tree-vectorize
check_cflags -Werror=implicit-function-declaration
check_cflags -Werror=missing-prototypes
+ check_cflags -Werror=declaration-after-statement
elif enabled llvm_gcc; then
check_cflags -mllvm -stack-alignment=16
elif enabled clang; then
check_deps $CONFIG_LIST \
$CONFIG_EXTRA \
$HAVE_LIST \
- $DECODER_LIST \
- $ENCODER_LIST \
- $HWACCEL_LIST \
- $PARSER_LIST \
- $BSF_LIST \
- $DEMUXER_LIST \
- $MUXER_LIST \
- $FILTER_LIST \
- $INDEV_LIST \
- $OUTDEV_LIST \
- $PROTOCOL_LIST \
- $ACODEC_TESTS \
- $VCODEC_TESTS \
- $LAVF_TESTS \
- $LAVFI_TESTS \
- $SEEK_TESTS \
+ $ALL_COMPONENTS \
+ $ALL_TESTS \
enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
echo "optimizations ${optimizations-no}"
echo "static ${static-no}"
echo "shared ${shared-no}"
-echo "postprocessing support ${postproc-no}"
echo "new filter support ${avfilter-no}"
echo "network support ${network-no}"
echo "threading support ${thread_type-no}"
+echo "safe bitstream reader ${safe_bitstream_reader-no}"
echo "SDL support ${sdl-no}"
-echo "Sun medialib support ${mlib-no}"
echo "libdxva2 enabled ${dxva2-no}"
echo "libva enabled ${vaapi-no}"
echo "libvdpau enabled ${vdpau-no}"
eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
}
-get_version LIBSWSCALE libswscale/swscale.h
-get_version LIBPOSTPROC libpostproc/postprocess.h
get_version LIBAVCODEC libavcodec/version.h
get_version LIBAVDEVICE libavdevice/avdevice.h
+get_version LIBAVFILTER libavfilter/version.h
get_version LIBAVFORMAT libavformat/version.h
get_version LIBAVUTIL libavutil/avutil.h
-get_version LIBAVFILTER libavfilter/avfilter.h
+get_version LIBSWSCALE libswscale/swscale.h
cat > $TMPH <<EOF
/* Automatically generated by configure - do not modify! */
print_config HAVE_ "$config_files" $HAVE_LIST
print_config CONFIG_ "$config_files" $CONFIG_LIST \
$CONFIG_EXTRA \
- $DECODER_LIST \
- $ENCODER_LIST \
- $HWACCEL_LIST \
- $PARSER_LIST \
- $BSF_LIST \
- $DEMUXER_LIST \
- $MUXER_LIST \
- $FILTER_LIST \
- $PROTOCOL_LIST \
- $INDEV_LIST \
- $OUTDEV_LIST \
+ $ALL_COMPONENTS \
cat >>config.mak <<EOF
ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
-pkgconfig_generate libpostproc "Libav postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"