SALSA - Small ALSA

ALSA 홈페이지 뒤지다가 발견한 꽃 같은 녀석!
cpu 점유율은... cpu가 구려서 top 만 돌려서 힘들어 하는 녀석이라
비교하긴 힘들지만.. 5~10% 정도는 Mplayer 최대 부하 걸리는 녀석이 아니면 떨어트려 주는 듯

SALSA-Lib - Small ALSA Library ============================== GENERAL ------- SALSA-Lib is a small, light-weight, hot and spicy version of the ALSA library, mainly for embedded systems with limited resources. The library is designed to be source-level compatible with ALSA library API for limited contents.  Most of function calls are inlined, and accesses directly to the hardware via system calls. Some components like ALSA sequencer aren't supported, and most of all, the alsa-lib plugins and configurations are completely dropped.  Thus, neither dmix nor format conversion is available with SALSA-lib. CROSS-COMPILATION ----------------- For compiling the library with a cross compiler, run like the following: % CC=arm-linux-gcc \   ./configure --target=arm-linux --host=i686-linux Don't forget to add "-linux" to the host option value.  Otherwise configure script won't detect the host type correctly, and the shared library won't be built properly. [링크 : http://ftp://ftp.suse.com/pub/people/tiwai/salsa-lib/README]

[링크 : http://www.alsa-project.org/main/index.php/ALSA_Library_API]
[링크 : http://www.alsa-project.org/main/index.php/SALSA-Library] << SALSA
[링크 : http://ftp://ftp.suse.com/pub/people/tiwai/salsa-lib/]


귀찮으면 --enable-everything 끗 ㅋㅋㅋ

$ ./configure --help `configure' configures this package to adapt to many kinds of systems. Usage: ./configure [OPTION]... [VAR=VALUE]... To assign environment variables (e.g., CC, CFLAGS...), specify them as VAR=VALUE.  See below for descriptions of some of the useful variables. Defaults for the options are specified in brackets. Configuration:   -h, --help              display this help and exit       --help=short        display options specific to this package       --help=recursive    display the short help of all the included packages   -V, --version           display version information and exit   -q, --quiet, --silent   do not print `checking ...' messages       --cache-file=FILE   cache test results in FILE [disabled]   -C, --config-cache      alias for `--cache-file=config.cache'   -n, --no-create         do not create output files       --srcdir=DIR        find the sources in DIR [configure dir or `..'] Installation directories:   --prefix=PREFIX         install architecture-independent files in PREFIX                           [/usr]   --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX                           [PREFIX] By default, `make install' will install all the files in `/usr/bin', `/usr/lib' etc.  You can specify an installation prefix other than `/usr' using `--prefix', for instance `--prefix=$HOME'. For better control, use the options below. Fine tuning of the installation directories:   --bindir=DIR            user executables [EPREFIX/bin]   --sbindir=DIR           system admin executables [EPREFIX/sbin]   --libexecdir=DIR        program executables [EPREFIX/libexec]   --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]   --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]   --localstatedir=DIR     modifiable single-machine data [PREFIX/var]   --libdir=DIR            object code libraries [EPREFIX/lib]   --includedir=DIR        C header files [PREFIX/include]   --oldincludedir=DIR     C header files for non-gcc [/usr/include]   --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]   --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]   --infodir=DIR           info documentation [DATAROOTDIR/info]   --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]   --mandir=DIR            man documentation [DATAROOTDIR/man]   --docdir=DIR            documentation root [DATAROOTDIR/doc/PACKAGE]   --htmldir=DIR           html documentation [DOCDIR]   --dvidir=DIR            dvi documentation [DOCDIR]   --pdfdir=DIR            pdf documentation [DOCDIR]   --psdir=DIR             ps documentation [DOCDIR] Program names:   --program-prefix=PREFIX            prepend PREFIX to installed program names   --program-suffix=SUFFIX            append SUFFIX to installed program names   --program-transform-name=PROGRAM   run sed PROGRAM on installed program names System types:   --build=BUILD     configure for building on BUILD [guessed]   --host=HOST       cross-compile to build programs to run on HOST [BUILD] Optional Features:   --disable-option-checking  ignore unrecognized --enable/--with options   --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)   --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]   --disable-dependency-tracking  speeds up one-time build   --enable-dependency-tracking   do not reject slow dependency extractors   --enable-shared[=PKGS]  build shared libraries [default=yes]   --enable-static[=PKGS]  build static libraries [default=yes]   --enable-fast-install[=PKGS]                           optimize for fast installation [default=yes]   --disable-libtool-lock  avoid locking (might break parallel builds)   --disable-pcm           disable PCM interface   --disable-mixer         disable mixer interface   --enable-rawmidi        enable rawmidi interface   --enable-hwdep          enable hwdep interface   --enable-timer          enable timer interface   --enable-conf           enable dummy conf functions   --enable-seq            enable seq functions   --enable-tlv            enable TLV (dB) support   --disable-user-elem     disable user-space control element support   --enable-async          enable async handler support   --enable-libasound      build a ABI-compatible libasound.so   --disable-deprecated    don't mark deprecated attribute for non-working                           functions   --enable-output-buffer  support the string output via snd_output_*()                           functions   --disable-delight-valgrind                           do not initialize unnecessary fields for ioctls   --disable-symbolic-functions                           use -Bsymbolic-functions option if available                           (optmization for size and speed)   --enable-float          support floatin-point unit   --disable-4bit          drop the support for 4bit PCM (IMA ADPCM)   --enable-abicheck       enable library ABI check   --enable-everything     enable everything :) Optional Packages:   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]   --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]   --with-pic              try to use only PIC/non-PIC objects [default=use                           both]   --with-tags[=TAGS]      include additional configurations [automatic]   --with-compat-version=VERSION                           specify the compatible version with ALSA-lib                           (default=1.0.25)   --with-alsa-devdir=dir  directory with ALSA device files (default /dev/snd) Some influential environment variables:   CC          C compiler command   CFLAGS      C compiler flags   LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a               nonstandard directory <lib dir>   LIBS        libraries to pass to the linker, e.g. -l<library>   CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if               you have headers in a nonstandard directory <include dir>   CPP         C preprocessor   CXX         C++ compiler command   CXXFLAGS    C++ compiler flags   CXXCPP      C++ preprocessor   F77         Fortran 77 compiler command   FFLAGS      Fortran 77 compiler flags Use these variables to override the choices made by `configure' or to help it to find libraries and programs with nonstandard names/locations. Report bugs to the package provider.