Document FF_SYMVER and attribute_used

[ffmpeg] / configure

diff --git a/configure b/configure
index f8a13165e7236f66da2964303f562954be5fe6b7..70ad8a5700d6a4254fb6a7b61304fb43f4b4e2cf 100755 (executable)
--- a/configure
+++ b/configure
@@ -115,7 +115,6 @@ Configuration options:
   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
-  --enable-beos-netserver  enable BeOS netserver
   --disable-everything     disable all components listed below
   --disable-encoder=NAME   disable encoder NAME
   --enable-encoder=NAME    enable encoder NAME
@@ -183,6 +182,7 @@ External library support:
   --enable-libtheora       enable Theora encoding via libtheora [no]
   --enable-libvorbis       enable Vorbis encoding via libvorbis,
                            native implementation exists [no]
+  --enable-libvpx          enable VP8 support via libvpx [no]
   --enable-libx264         enable H.264 encoding via x264 [no]
   --enable-libxvid         enable Xvid encoding via xvidcore,
                            native MPEG-4/Xvid encoder exists [no]
@@ -252,6 +252,8 @@ EOF
   exit 0
 }
 
+quotes='""'
+
 log(){
     echo "$@" >> $logfile
 }
@@ -893,7 +895,6 @@ CONFIG_LIST="
     avfilter_lavf
     avformat
     avisynth
-    beos_netserver
     bzlib
     dct
     doc
@@ -927,6 +928,7 @@ CONFIG_LIST="
     libspeex
     libtheora
     libvorbis
+    libvpx
     libx264
     libxvid
     lpc
@@ -1084,6 +1086,9 @@ HAVE_LIST="
     struct_sockaddr_in6
     struct_sockaddr_sa_len
     struct_sockaddr_storage
+    symver
+    symver_gnu_asm
+    symver_asm_label
     sys_mman_h
     sys_resource_h
     sys_select_h
@@ -1198,6 +1203,8 @@ fast_unaligned_if_any="armv6 ppc x86"
 need_memalign="altivec neon sse"
 inline_asm_deps="!tms470"
 
+symver_if_any="symver_asm_label symver_gnu_asm"
+
 # subsystems
 mdct_select="fft"
 rdft_select="fft"
@@ -1270,6 +1277,7 @@ png_decoder_select="zlib"
 png_encoder_select="zlib"
 qcelp_decoder_select="lsp"
 qdm2_decoder_select="mdct rdft"
+real_144_encoder_select="lpc"
 rv10_decoder_select="h263_decoder"
 rv10_encoder_select="h263_encoder"
 rv20_decoder_select="h263_decoder"
@@ -1349,6 +1357,8 @@ libschroedinger_encoder_deps="libschroedinger"
 libspeex_decoder_deps="libspeex"
 libtheora_encoder_deps="libtheora"
 libvorbis_encoder_deps="libvorbis"
+libvpx_decoder_deps="libvpx"
+libvpx_encoder_deps="libvpx"
 libx264_encoder_deps="libx264"
 libxvid_encoder_deps="libxvid"
 
@@ -1385,10 +1395,6 @@ alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
 alsa_indev_extralibs="-lasound"
 alsa_outdev_deps="alsa_asoundlib_h"
 alsa_outdev_extralibs="-lasound"
-audio_beos_indev_deps="audio_beos"
-audio_beos_indev_extralibs="-lmedia -lbe"
-audio_beos_outdev_deps="audio_beos"
-audio_beos_outdev_extralibs="-lmedia -lbe"
 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
 dv1394_indev_deps="dv1394 dv_demuxer"
 jack_indev_deps="jack_jack_h"
@@ -1407,6 +1413,7 @@ x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
 gopher_protocol_deps="network"
 http_protocol_deps="network"
 http_protocol_select="tcp_protocol"
+mmst_protocol_deps="network"
 rtmp_protocol_select="tcp_protocol"
 rtp_protocol_select="udp_protocol"
 tcp_protocol_deps="network"
@@ -1422,6 +1429,7 @@ avformat_deps="avcodec"
 
 # programs
 ffmpeg_deps="avcodec avformat swscale"
+ffmpeg_select="buffer_filter"
 ffplay_deps="avcodec avformat swscale sdl"
 ffplay_select="rdft"
 ffprobe_deps="avcodec avformat"
@@ -2121,30 +2129,10 @@ enabled spic && enable pic
 
 # OS specific
 case $target_os in
-    beos|haiku|zeta)
-        prefix_default="$HOME/config"
-        # 3 gcc releases known for BeOS, each with ugly bugs
-        gcc_version="$($cc -v 2>&1 | grep version | cut -d ' ' -f3-)"
-        case "$gcc_version" in
-          2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
-            disable mmx
-            ;;
-          *20010315*) echo "BeBits gcc"
-            add_cflags -fno-expensive-optimizations
-            ;;
-        esac
-        SHFLAGS=-nostart
-        # enable BeOS things
-        enable audio_beos
-        # no need for libm, but the inet stuff
-        # Check for BONE
-        # XXX: actually should check for NOT net_server
-        if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
-            network_extralibs="-lbind -lsocket"
-        else
-            enable beos_netserver
-            network_extralibs="-lnet"
-        fi ;;
+    haiku)
+        prefix_default="/boot/common"
+        network_extralibs="-lnetwork"
+        ;;
     sunos)
         FFSERVERLDFLAGS=""
         SHFLAGS='-shared -Wl,-h,$$(@F)'
@@ -2584,7 +2572,7 @@ for thread in $THREADS_LIST; do
 done
 
 check_lib math.h sin -lm
-check_lib va/va.h vaInitialize -lva
+disabled vaapi || check_lib va/va.h vaInitialize -lva
 
 check_mathfunc exp2
 check_mathfunc exp2f
@@ -2611,15 +2599,17 @@ enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb -lm
 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb -lm
 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
-enabled librtmp    && require  librtmp librtmp/rtmp.h RTMP_Init -lrtmp
+enabled librtmp    && require  librtmp librtmp/rtmp.h RTMP_Init $(pkg-config --libs librtmp)
 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
+enabled libvpx     && require2 libvpx "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_dec_init_ver" -lvpx &&
+                      require2 libvpx "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver" -lvpx
 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 -lm &&
-                      { check_cpp_condition x264.h "X264_BUILD >= 90" ||
-                        die "ERROR: libx264 version must be >= 0.90."; }
+                      { check_cpp_condition x264.h "X264_BUILD >= 98" ||
+                        die "ERROR: libx264 version must be >= 0.98."; }
 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
 
@@ -2731,8 +2721,17 @@ check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUI
 check_ldflags -Wl,-Bsymbolic
 
 echo "X{};" > $TMPV
-test_ldflags -Wl,--version-script,$TMPV &&
+if test_ldflags -Wl,--version-script,$TMPV; then
     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
+    check_cc <<EOF && enable symver_asm_label
+void ff_foo(void) __asm__ ("av_foo@VERSION");
+void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
+EOF
+    check_cc <<EOF && enable symver_gnu_asm
+__asm__(".symver ff_foo,av_foo@VERSION");
+void ff_foo(void) {}
+EOF
+fi
 
 if enabled small; then
     add_cflags $size_cflags
@@ -2787,9 +2786,6 @@ if enabled gprof; then
     add_ldflags -p
 fi
 
-# Find out if the .align argument is a power of two or not.
-check_asm asmalign_pot '".align 3"'
-
 enabled_any $THREADS_LIST      && enable threads
 
 check_deps $CONFIG_LIST       \
@@ -2812,7 +2808,6 @@ enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
 echo "install prefix            $prefix"
 echo "source path               $source_path"
 echo "C compiler                $cc"
-echo ".align is power-of-two    $asmalign_pot"
 echo "ARCH                      $arch ($cpu)"
 if test "$build_suffix" != ""; then
     echo "build suffix              $build_suffix"
@@ -2886,6 +2881,7 @@ echo "libschroedinger enabled   ${libschroedinger-no}"
 echo "libspeex enabled          ${libspeex-no}"
 echo "libtheora enabled         ${libtheora-no}"
 echo "libvorbis enabled         ${libvorbis-no}"
+echo "libvpx enabled            ${libvpx-no}"
 echo "libx264 enabled           ${libx264-no}"
 echo "libxvid enabled           ${libxvid-no}"
 echo "zlib enabled              ${zlib-no}"
@@ -3043,8 +3039,6 @@ get_version LIBAVFORMAT libavformat/avformat.h
 get_version LIBAVUTIL   libavutil/avutil.h
 get_version LIBAVFILTER libavfilter/avfilter.h
 
-enabled asmalign_pot || align_shift="1 <<"
-
 cat > $TMPH <<EOF
 /* Automatically generated by configure - do not modify! */
 #ifndef FFMPEG_CONFIG_H
@@ -3055,7 +3049,7 @@ cat > $TMPH <<EOF
 #define CC_TYPE "$cc_type"
 #define CC_VERSION $cc_version
 #define restrict $_restrict
-#define ASMALIGN(ZEROBITS) ".align $align_shift " #ZEROBITS "\\n\\t"
+#define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
 #define EXTERN_PREFIX "${extern_prefix}"
 #define EXTERN_ASM ${extern_prefix}
 EOF