우분투에는 /etc/ld.so.conf.d 로 존재한다.
다른 배포판에서는 /etc/ld.so.conf 로 존재하는듯 하다.
----------------------------------------------------------------------
Libraries have been installed in:
/usr/local/lib
If you ever happen to want to link against installed libraries
in a given directory, LIBDIR, you must either use libtool, and
specify the full pathname of the library, or use the `-LLIBDIR'
flag during linking and do at least one of the following:
- add LIBDIR to the `LD_LIBRARY_PATH' environment variableduring execution
- add LIBDIR to the `LD_RUN_PATH' environment variableduring linking
- use the `-Wl,-rpath -Wl,LIBDIR' linker flag
- have your system administrator add LIBDIR to `/etc/ld.so.conf'
See any operating system documentation about shared libraries for
more information, such as the ld(1) and ld.so(8) manual pages.
----------------------------------------------------------------------
autoconf 에서 출력되는 ld 관련 메시지
3.3. 환경 변수들
여러가지 환경변수는 이 과정을 제어할 수 있다. 그리고 이 과정을 오버라이드하는 환경변수들이 존재한다.
3.3.1. LD_LIBRARY_PATH
이 특별한 실행을 위해 당신은 일시적으로 다른 라이브러리를 대체할 수 있다. 리눅스에서, 환경변수 LD_LIBRARY_PATH는 표준의 디렉토리들을 찾기전에 찾아보게되는 라이브러리의 디렉토리들의 콜론으로 구분되는 셋이다; 이것은 새 라이브러리나 특별히 제작한 표준이 아닌 라이브러리를 디버깅할때 유용하다. 환경변수 LD_PRELOAD는 /etc/ld.so.preload가 하는 것처럼 표준 셋을 오버라이드하는 공유 라이브러리를 함수와 함께 나열한다. 이것들은 /lib/ld-linux.so라는 로더에 의해 구현된다. LD_LIBRARY_PATH가 많은 유닉스 시스템에서 작동하는 반면 모든 시스템에서 작동하지 않는다는 것을 말하고 싶다; 예를들어, HU-UX에서는 이 기능이 환경변수 SHLIB_PATH에 의해서 가능하고, AIX에서는 LIBPATH에 의해 가능하다(같은 문법과, 콜론으로 구분되는 리스트로 가능하다).
LD_LIBRARY_PATH는 개발과 검사를 위해 편리하다. 그러나 보통의 유저의 보통의 사용을 위해서 설치 과정에서 변경되면 안된다; 왜 그런지는 http://www.visi.com/~barr/ldpath.html의 ``Why LD_LIBRARY_PATH is Bad''에서 찾아보라. 하지만, 이 기능은 여전히 개발과 검사를 위해 유용하고, 다른방식으로 해결하지 못하는 것을 해결하는데 유용하다. 만약 당신이 환경변수 LD_LIBRARY_PATH를 설정하고 싶지 않다면, 리눅스에서 당신은 프로그램 로더를 직접 불러서 인자를 넘겨줄수도 있다. 예를들어, 다음은 환경변수 LD_LIBRARY_PATH의 경로 이외의 주어진 PATH를 사용할 것이고, 실행가능 프로그램을 돌릴 것이다.
/lib/ld-linux.so.2 --library-path PATH EXECUTABLE
인자없이 ld-linux.so를 돌리는 것은 당신이 이렇게 사용하는데에 도움을 줄 것이다. 하지만, 이것을 보통의 용도로 사용하지 마라. 이것들은 디버깅용이다.
/sbin/ldconfig - configure dynamic linker run time bindings
Files /lib/ld.so run-time linker/loader /etc/ld.so.conf File containing a list of colon, space, tab, newline, or comma-separated directories in which to search for libraries. /etc/ld.so.cache File containing an ordered list of libraries found in the directories specified in /etc/ld.so.conf.
pkg-config - Return metainformation about installed libraries
PKG_CONFIG_PATH
A colon-separated (on Windows, semicolon-separated) list of directories to search for .pc files. The default directory will always be searched after searching the path; the default is libdir/pkgconfig:datadir/pkgconfig where libdir is the libdir where pkg-config and datadir is the datadir where pkg-config was installed.
[링크 : http://linux.die.net/man/1/pkg-config]
libopencore-amrnb 와 libopencore-amrwb 를 사용하려면 version3로 라이센스를 바꾸어야 한다.
(upgrade (L)GPL to version 3)
$ ./configure --help
Usage: configure [options]
Options: [defaults in brackets after descriptions]
Standard options:
--help print this message
--logfile=FILE log tests and output to FILE [config.err]
--disable-logging do not log configure debug information
--prefix=PREFIX install in PREFIX []
--bindir=DIR install binaries in DIR [PREFIX/bin]
--datadir=DIR install data files in DIR [PREFIX/share/ffmpeg]
--libdir=DIR install libs in DIR [PREFIX/lib]
--shlibdir=DIR install shared libs in DIR [PREFIX/lib]
--incdir=DIR install includes in DIR [PREFIX/include]
--mandir=DIR install man page in DIR [PREFIX/share/man]
Configuration options:
--disable-static do not build static libraries [no]
--enable-shared build shared libraries [no]
--enable-gpl allow use of GPL code, the resulting libs and binaries will be under GPL [no] --enable-version3 upgrade (L)GPL to version 3 [no]
--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-ffplay disable ffplay build
--disable-ffserver disable ffserver build
--enable-postproc enable GPLed postprocessing support [no]
--enable-avfilter video filter support [no]
--enable-avfilter-lavf video filters dependent on avformat [no]
--enable-beosthreads use BeOS threads [no]
--enable-os2threads use OS/2 threads [no]
--enable-pthreads use pthreads [no]
--enable-w32threads use Win32 threads [no]
--enable-x11grab enable X11 grabbing [no]
--disable-network disable network support [no]
--disable-ipv6 disable IPv6 support [no]
--disable-mpegaudio-hp faster (but less accurate) MPEG audio decoding [no]
--enable-gray enable full grayscale support (slower color)
--disable-swscale-alpha disable alpha channel support in swscale
--disable-fastdiv disable table-based division
--enable-small optimize for size instead of speed
--disable-aandct disable AAN DCT code
--disable-fft disable FFT code
--disable-golomb disable Golomb code
--disable-lpc disable LPC code
--disable-mdct disable MDCT code
--disable-rdft disable RDFT code
--disable-vaapi disable VAAPI code
--disable-vdpau disable VDPAU code
--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-encoder=NAME disable encoder NAME
--enable-encoder=NAME enable encoder NAME
--disable-encoders disable all encoders
--disable-decoder=NAME disable decoder NAME
--enable-decoder=NAME enable decoder NAME
--disable-decoders disable all decoders
--disable-hwaccel=NAME disable hwaccel NAME
--enable-hwaccel=NAME enable hwaccel NAME
--disable-hwaccels disable all hwaccels
--disable-muxer=NAME disable muxer NAME
--enable-muxer=NAME enable muxer NAME
--disable-muxers disable all muxers
--disable-demuxer=NAME disable demuxer NAME
--enable-demuxer=NAME enable demuxer NAME
--disable-demuxers disable all demuxers
--enable-parser=NAME enable parser NAME
--disable-parser=NAME disable parser NAME
--disable-parsers disable all parsers
--enable-bsf=NAME enable bitstream filter NAME
--disable-bsf=NAME disable bitstream filter NAME
--disable-bsfs disable all bitstream filters
--enable-protocol=NAME enable protocol NAME
--disable-protocol=NAME disable protocol NAME
--disable-protocols disable all protocols
--disable-indev=NAME disable input device NAME
--disable-outdev=NAME disable output device NAME
--disable-indevs disable input devices
--disable-outdevs disable output devices
--disable-devices disable all devices
--enable-filter=NAME enable filter NAME
--disable-filter=NAME disable filter NAME
--disable-filters disable all filters
--list-decoders show all available decoders
--list-encoders show all available encoders
--list-hwaccels show all available hardware accelerators
--list-muxers show all available muxers
--list-demuxers show all available demuxers
--list-parsers show all available parsers
--list-protocols show all available protocols
--list-bsfs show all available bitstream filters
--list-indevs show all available input devices
--list-outdevs show all available output devices
--list-filters show all available filters
External library support:
--enable-avisynth enable reading of AVISynth script files [no]
--enable-bzlib enable bzlib [autodetect] --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
--enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
--enable-libdc1394 enable IIDC-1394 grabbing using libdc1394 and libraw1394 [no]
--enable-libdirac enable Dirac support via libdirac [no]
--enable-libfaac enable FAAC support via libfaac [no]
--enable-libfaad enable FAAD support via libfaad [no]
--enable-libfaadbin open libfaad.so.0 at runtime [no]
--enable-libgsm enable GSM support via libgsm [no]
--enable-libmp3lame enable MP3 encoding via libmp3lame [no]
--enable-libnut enable NUT (de)muxing via libnut, native (de)muxer exists [no]
--enable-libopenjpeg enable JPEG 2000 decoding via OpenJPEG [no]
--enable-libschroedinger enable Dirac support via libschroedinger [no]
--enable-libspeex enable Speex decoding via libspeex [no]
--enable-libtheora enable Theora encoding via libtheora [no]
--enable-libvorbis enable Vorbis encoding via libvorbis, native implementation exists [no]
--enable-libx264 enable H.264 encoding via x264 [no]
--enable-libxvid enable Xvid encoding via xvidcore, native MPEG-4/Xvid encoder exists [no]
--enable-mlib enable Sun medialib [no]
--enable-zlib enable zlib [autodetect]
Advanced options (experts only):
--source-path=PATH path to source code [/home/morpheuz/다운로드/ffmpeg]
--cross-prefix=PREFIX use PREFIX for compilation tools []
--enable-cross-compile assume a cross-compiler is used
--sysroot=PATH root of cross-build tree
--sysinclude=PATH location of cross-build system headers
--target-os=OS compiler targets OS [linux]
--target-exec=CMD command to run executables on target
--target-path=DIR path to view of build directory on target
--nm=NM use nm tool
--as=AS use assembler AS []
--cc=CC use C compiler CC [gcc]
--ld=LD use linker LD
--host-cc=HOSTCC use host C compiler HOSTCC
--host-cflags=HCFLAGS use HCFLAGS when compiling for host
--host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
--host-libs=HLIBS use libs HLIBS when linking for host
--extra-cflags=ECFLAGS add ECFLAGS to CFLAGS []
--extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS []
--extra-libs=ELIBS add ELIBS []
--extra-version=STRING version string suffix []
--build-suffix=SUFFIX library name suffix []
--arch=ARCH select architecture [i686]
--cpu=CPU select the minimum required CPU (affects instruction selection, may crash on older CPUs)
--enable-powerpc-perf enable performance report on PPC (requires enabling PMC)
--disable-altivec disable AltiVec optimizations
--disable-amd3dnow disable 3DNow! optimizations
--disable-amd3dnowext disable 3DNow! extended optimizations
--disable-mmx disable MMX optimizations
--disable-mmx2 disable MMX2 optimizations
--disable-sse disable SSE optimizations
--disable-ssse3 disable SSSE3 optimizations
--disable-armv5te disable armv5te optimizations
--disable-armv6 disable armv6 optimizations
--disable-armv6t2 disable armv6t2 optimizations
--disable-armvfp disable ARM VFP optimizations
--disable-iwmmxt disable iwmmxt optimizations
--disable-mmi disable MMI optimizations
--disable-neon disable neon optimizations
--disable-vis disable VIS optimizations
--disable-yasm disable use of yasm assembler
--enable-pic build position-independent code
Developer options (useful when working on FFmpeg itself):
--disable-debug disable debugging symbols
--enable-debug=LEVEL set the debug level []
--enable-gprof enable profiling with gprof []
--disable-optimizations disable compiler optimizations
--enable-extra-warnings enable more compiler warnings
--disable-stripping disable stripping of executables and shared libraries
NOTE: Object files are built at the place where configure is launched.
머.. 그 다음에는 make/make install
$ ffmpeg --help | grep amr
FFmpeg version SVN-r21186, Copyright (c) 2000-2010 Fabrice Bellard, et al.
built on Jan 14 2010 00:21:22 with gcc 4.4.1
configuration: --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-version3
libavutil 50. 7. 0 / 50. 7. 0
libavcodec 52.47. 0 / 52.47. 0
libavformat 52.46. 0 / 52.46. 0
libavdevice 52. 2. 0 / 52. 2. 0
libswscale 0. 8. 0 / 0. 8. 0
에러는 아니지만 warning 내지는 no라고 뜨는 부분을 해결하기 위해 설치한 패키지들
mtpfs
mtp-tools
libmtp-dev
lua5.1 (설치해도 못찾음)
liblivemedia-dev
livemedia-utils
libdvbpsi5-dev
libv4l-dev
libcddb2
libcddb2-dev
libmpeg2-4-dev
zvbi (설치해도 못찾음)
libpulseaudio-dev
configure 시에는 발생하지 않으나, make 시에 발생해서 추가로 설치한 패키지
x11proto-xext-dev
