Transcode compiles even if you do not have all additional libs
installed. You do not *need* to have a "yes" on every configure check.

You will need to have libavcodec (also known as ffmpeg libraries)
installed somewhere on your computer. Without libavcodec and libavformat
transcode doesn't compile. The best way to accomplish this is to get FFmpeg 
from svn (ffmpeg.mplayerhq.hu), configure it with at least --enable-shared
and --enable-pthreads compile and install it. (Also see the notes below
about libpostproc if you plan to use filter_pp.) A package of some kind
that includes libavcodec.so and the headers will do as well. If the
files are installed in a non-default location (transcode assumes prefix:
/usr), then you will need to tell transcode where they live. Very
important: you _need_ both the header files _and_ shared libraries files.
The static libraries won't do!

Depending on what you want to do with transcode you may need additional
packages installed. In particular, a recent version of lame is needed
for encoding MP2/MP3 audio, and liba52 is required for decoding AC3
audio (as is used on some DVDs).

If you obtained transcode using CVS, you will need to generate the
"configure" script yourself while in the snapshot tarballs it's
included. To do this you need _recent_ versions of autoconf (>= 2.59),
automake (>= 1.8) and libtool (>= 1.5) utilities. Now to make the
configure script, run "autoreconf -i -f". Do not use "autoreconf -if"
because this does not work on some distributions.

Now run

 ./configure --help

to get some idea of the many optional packages that can be incorporated.
Note the *--enable-$$$* and *--with-$$$* flags.

ONLY PACKAGES THAT ARE ENABLED EXPLICITLY USING CONFIGURE ARE ACTUALLY
USED TO BUILD MODULES.

If you have any optimisations your C compiler supports and you want to
use, put them in the environment ./configure is run in. It pays off to
study all the optimisation flags your C compiler offers. Some of these
may be useful, and some may cause problems, that is why transcode itself
does not use any optimization flags unless absolutely necessary. For
instance, if you are going to be running transcode on a Pentium4 system
and building with *gcc*, you can invoke configure like this:

 $ env CFLAGS="-O3 -march=pentium4" ./configure ...

to create an optimised build,

or

 $ env CFLAGS="-g" ./configure ...

to build transcode for debugging.

Don't forget the relevant configure options, described below.

Then:

  make
  make install

------------------------------------------------------------------------
*Configure options for transcode*

Configure will not test for a package unless support is enabled. For
example, configure will not look for SDL unless the option
'--enable-sdl' is used. If a package distributes pkg-config information,
or if a package distributes it's own -config script (like libquicktime's
lqt-config), configure will use information from pkg-config or the
package's script to find the package's headers and libraries.  Otherwise,
configure will look in the default prefix, /usr.  This means that by
default configure will look for the headers in /usr/include and the
libraries in /usr/lib.

The options dealing with file locations can be used to tell configure
to look in other locations for headers and libraries. The prefix to
search can be changed with the --with-$$$-prefix options. Specific
directories for libraries and headers can be given with --with-$$$-libs
and --with-$$$-includes, respectively. If the header and library
specific options are used, configure will use the paths given with
those options, and will not use paths from pkg-config or a package's
-config script. NOTE: the --with-$$$-prefix option does not override
pkg-config or -config information. configure will use the prefix to
search for a package's -config script.

If configure is unable to find support for a mandatory or optionally
enabled package, configure will exit with an error and display a message
about the error.

For the options described below, the default value is in parenthesis
after the option.

General options:

  --enable-statbuffer (enabled)
      enable internal static framebuffer support
  --enable-netstream (disabled)
      enable network streaming support
  --enable-xio (disabled)
      link to the xio library
  --enable-warnings-as-errors (disabled)
      treat warnings as errors
  --with-x (with)
      use the X Window System
  --with-default-xvid=<default xvid> (xvid4)
      Default xvid version.  Valid options: xvid2, xvid3, xvid4
  --with-mod-path (${prefix}/lib/transcode)
      directory where export/import modules are installed

Mandatory packages:

  libz
  libm
  pkg-config
    (these generally come with any and all OSes)

  libavcodec from FFmpeg SVN (snapshot >= 20080706)  http://ffmpeg.mplayerhq.hu/
    related options:
      --with-libavcodec-prefix=PFX (/usr)
          prefix where libavcodec is installed
      --with-libavcodec-includes=DIR (/usr/include)
          directory where libavcodec headers [ffmpeg/avcodec.h] are installed
      --with-libavcodec-libs=DIR (/usr/lib)
          prefix where libavcodec libraries [libavcodec.so] are installed

  libavformat from FFmpeg >= 20080706 (SVN)  http://ffmpeg.mplayerhq.hu/
    related options:
      --with-libavformat-prefix=PFX (/usr)
          prefix where libavformat is installed
      --with-libavformat-includes=DIR (/usr/include)
          directory where libavformat headers [ffmpeg/avformat.h] are installed
      --with-libavformat-libs=DIR (/usr/lib)
          prefix where libavformat libraries [libavformat.so] are installed

  libmpeg2 from mpeg2dec >= 0.4.0b  http://libmpeg2.sourceforge.net/
  libmpeg2convert is needed as well (shipped in the same package of libmpeg2)
    related options:
      --with-libmpeg2-prefix=PFX (/usr)
          prefix where libmpeg2 is installed
      --with-libmpeg2-includes=DIR (/usr/include)
          directory where libmpeg2 headers [mpeg2dec/mpeg2.h] are installed
      --with-libmpeg2-libs=DIR (/usr/lib)
          prefix where libmpeg2 libraries [libmpeg2.so] are installed

OS dependent packages:

  v4l
    related options:
      --enable-v4l (disabled)
          if enabled, builds v4l and v4l2 modules, which imports video
          from video capture hardware on Linux using the Video4Linux(2)
          API.
            please note: use import_v4l2 if possible; v4l is deprecated.
    affected modules: import_v4l.so import_v4l2.so

  OSS
    related options:
      --enable-oss (disabled)
          if enabled, builds OSS import module, which imports audio
          from audio hardware on several platforms using the OSS API.
    affected modules: import_oss.so

  bktr
    related options:
      --enable-bktr (disabled)
          if enabled, builds bktr import module, which imports video
          from video capture hardware on *BSD using the bktr(4) API.
    affected modules: import_bktr.so

  sunau
    related options:
      --enable-sunau (disabled)
          if enabled, builds sunau import module, which imports raw PCM
          audio from hardware on *BSD using the audio(4) API.
    affected modules: import_sunau.so

Optional packages:

  libpostproc (part of FFmpeg) http://ffmpeg.mplayerhq.hu/
    related options:
      --enable-libpostproc (disabled)
          build with libpostproc support for video processing
      --with-libpostproc-prefix=PFX (/usr)
          prefix where libpostproc is installed
      --with-libpostproc-includes=DIR (/usr/include)
          directory where libpostproc header [postprocess.h] is installed
      --with-libpostproc-libs=DIR (/usr/lib)
          directory where libpostproc library [libpostproc.so] is installed
    affected modules: filter_pp.so
    NOTE: It is highly recommended to use a shared libpostproc.  To
          build a shared libpostproc, build FFmpeg with
          '--enable-pp --enable-shared-pp'.

  FreeType2  http://freetype.sourceforge.net/
    related options:
      --enable-freetype2 (enabled)
          build with FreeType2 support for rendering text
      --with-freetype2-prefix=PFX (/usr)
          prefix where FreeType is installed
      --with-freetype2-includes=DIR (/usr/include)
          directory where FreeType headers [ft2build.h] are installed
      --with-freetype2-libs=DIR (/usr/lib)
          directory where FreeType libraries [libfreetype.so] are installed
    affected modules: filter_text.so, filter_subtitler.so

  liba52  http://liba52.sourceforge.net/
    related options:
      --enable-a52 (disabled)
          build with support for AC3/A52 audio decoding
      --with-a52-prefix=PFX (/usr)
          prefix where liba52 is installed
      --with-a52-includes=DIR (/usr/include)
          directory where liba52 headers are installed
      --with-a52-libs=DIR (/usr/lib)
          directory where liba52 libraries are installed
    affected modules: a52_decore.so

  faac  http://www.audiocoding.com/
    related options:
      --enable-faac (disabled)
          build with support for AC3/FAAC audio decoding
      --with-faac-prefix=PFX (/usr)
          prefix where libfaac is installed
      --with-faac-includes=DIR (/usr/include)
          directory where libfaac headers are installed
      --with-faac-libs=DIR (/usr/lib)
          directory where libfaac libraries are installed
    affected modules: encode_faac.so
     
  mjpegtools  http://mjpeg.sourceforge.net/
  You need version >= 1.8.0 of mjpegtools.
    related options:
      --enable-mjpegtools (disabled)
          build with mjpegtools support for YUV4MPEG video streams
      --with-mjpegtools-prefix=PFX (/usr)
          prefix where mjpegtools is installed
      --with-mjpegtools-includes=DIR (/usr/include)
          directory where mjpegtools headers are installed
      --with-mjpegtools-libs=DIR (/usr/lib)
          directory where mjpegtools libraries are installed
    affected modules: import_yuv4mpeg.so export_yuv4mpeg.so,
      export_mpeg2enc.so, export_mp2enc.so

  SDL  http://www.libsdl.org/
    related options:
      --enable-sdl (disabled)
          build with SDL support for video display
      --with-sdl-prefix=PFX (/usr)
          prefix where SDL is installed
      --with-sdl-includes=DIR (/usr/include)
          directory where SDL headers are installed
      --with-sdl-libs=DIR (/usr/lib)
          directory where SDL libraries are installed
    affected modules: filter_preview.so

  lame  http://www.mp3dev.org/
    related options:
      --enable-lame (enabled)
          build with libmp3lame support for mpeg audio encoding
      --with-lame-prefix=PFX (/usr)
          prefix where lame is installed
      --with-lame-includes=DIR (/usr/include)
          directory where lame headers are installed
      --with-lame-libs=DIR (/usr/lib)
          directory where lame libraries are installed
    affected modules: encode_lame.so, export_dv.so, export_raw.so,
      export_divx5.so, export_ppm.so, export_ffmpeg.so, export_lame.so,
      export_yuv4mpeg.so, export_mpeg2enc.so, export_mp2enc.so,
      export_xvid4.so, import_mp3.so

  XviD  http://www.xvid.org/
    related options:
      --enable-xvid (disabled)
          build with xvid support for video encoding
      --with-xvid-prefix=PFX (/usr)
          prefix where xvid is installed
      --with-xvid-includes=DIR (/usr/include)
          directory where xvid headers are installed
      --with-xvid-libs=DIR (/usr/lib)
          directory xvid lame libraries are installed
    affected modules: encode_xvid.so

  ogg  http://www.xiph.org/ogg/
    related options:
      --enable-ogg (disabled)
          build with support for importing OGG audio
      --with-ogg-prefix=PFX (/usr)
          prefix where ogg is installed
      --with-ogg-includes=DIR (/usr/include)
          directory where ogg headers [ogg/ogg.h] are installed
      --with-ogg-libs=DIR (/usr/lib)
          directory where ogg libraries [libogg.so] are installed
    affect modules: none

  vorbis  http://www.xiph.org/ogg/vorbis/
    related options:
      --enable-vorbis (disabled)
          build with support for importing Vorbis audio
      --with-vorbis-prefix=PFX (/usr)
          prefix where vorbis is installed
      --with-vorbis-includes=DIR (/usr/include)
          directory where vorbis headers [vorbis/codec.h] are installed
      --with-vorbis-libs=DIR (/usr/lib)
          directory where vorbis libraries [libvorbis.so] are installed
      affected modules: none

  theora  http://www.theora.org/
    related options:
      --enable-theora (disabled)
          build with support for importing theora video (work in progress)
      --with-theora-prefix=PFX (/usr)
          prefix where theora is installed
      --with-theora-includes=DIR (/usr/include)
          directory where theora headers [theora/theora.h] are installed
      --with-theora-libs=DIR (/usr/lib)
          directory where theora libraries [libtheora.so] are installed
      affected modules: none

  x264  http://www.videolan.org/x264.html
    related options:
      --enable-x264 (disabled)
          build with support for encoding x264 video
      --with-x264-prefix=PFX (/usr)
          prefix where x264 is installed
      --with-x264-includes=DIR (/usr/include)
          directory where x264 headers [x264.h] are installed
      --with-x264-libs=DIR (/usr/lib)
          directory where x264 libraries [libx264.so] are installed
      affected modules: encode_x264.so

  libdvdread  http://www.dtek.chalmers.se/groups/dvd/
    related options:
      --enable-libdvdread (enabled)
          build with libdvdread support for reading DVDs
      --with-libdvdread-prefix=PFX (/usr)
          prefix where libdvdread is installed
      --with-libdvdread-includes=DIR (/usr/include)
          directory where libdvdread headers [dvd_reader.h] are installed
      --with-libdvdread-libs=DIR (/usr/lib)
          directory where libdvdread libraries [libdvdread.so] are installed
    affected modules: import_dvd.so

  PVM3  http://www.netlib.org/pvm3/ [UNSUPPORTED, probably BROKEN]
    related options:
      --enable-pvm3 (disabled)
          build with pvm3 support for parallelizing transcode
      --with-pvm3-prefix=PFX (/usr)
          prefix where pvm3 is installed
      --with-pvm3-includes=DIR (/usr/include)
          directory where pvm3 headers [pvm3.h] are installed
      --with-pvm3-libs=DIR (/usr/lib)
          directory where pvm3 libraries [libpvm3.so] are installed
    affected modules: export_pvm.so

  libdv  http://libdv.sourceforge.net/
    related options:
      --enable-libdv (disabled)
          build with libdv support for DV encoding and decoding
      --with-libdv-prefix=PFX (/usr)
          prefix where libdv is installed
      --with-libdv-includes=DIR (/usr/include)
          directory where libdv headers [libdv/dv.h] are installed
      --with-libdv-libs=DIR (/usr/lib)
          directory where libdv libraries [libdv.so] are installed
    affected modules: export_dvraw.so, export_dv.so, filter_preview.so

  libquicktime  http://libquicktime.sourceforge.net/ (requires version 1.0.x)
    related options:
      --enable-libquicktime (disabled)
          build with libquicktime support for reading and writing MOV files
      --with-libquicktime-prefix=PFX (/usr)
          prefix where libquicktime is installed
      --with-libquicktime-includes=DIR (/usr/include)
          directory where libquicktime headers [quicktime/lqt.h]  are installed
      --with-libquicktime-libs=DIR (/usr/lib)
          directory where libquicktime libraries [libquicktime.so] are installed
    affected modules: export_mov.so, import_mov.so

  lzo  http://www.oberhumer.com/opensource/lzo/
    LZO version >= 2.0 is required.
    LZO support is required to enable NUV/NuppelVideo import support.
    related options:
      --enable-lzo (disabled)
          build with liblzo support
      --with-lzo-prefix=PFX (/usr)
          prefix where lzo is installed
      --with-lzo-includes=DIR (/usr/include)
          directory where lzo headers [lzo/lzo1x.h] are installed
      --with-lzo-libs=DIR (/usr/lib)
          directory where lzo libraries [liblzo2.so] are installed
    affected modules: export_lzo.so, import_lzo.so, import_nuv.so

  libxml2  http://xmlsoft.org/
    related options:
      --enable-libxml2 (disabled)
          build with libxml2 support for accessing XML content
      --with-libxml2-prefix=PFX (/usr)
          directory where libxml2 is installed
      --with-libxml2-includes=DIR (/usr/include)
          directory where libxml2 headers [libxml/parser.h]  are installed
      --with-libxml2-libs=DIR (/usr/lib)
          directory where libxml2 libraries [libxml2.so] are installed
    affected modules: import_xml.so

  ImageMagick  http://www.imagemagick.com/
    related options:
      --enable-imagemagick (disabled)
          build with ImageMagick support for accessing various image types
      --with-imagemagick-prefix=PFX (/usr)
          prefix where imagemagick is installed
      --with-imagemagick-includes=DIR (/usr/include)
          directory where imagemagick headers [magick/api.h] are installed
      --with-imagemagick-libs=DIR (/usr/lib)
          directory where imagemagick libraries [libMagick.so] are installed
    affected modules: export_im.so, import_im.so, import_imlist.so,
      filter_logo.so, filter_logoaway.so, filter_compare.so

  libjpeg  http://www.ijg.org/
    related options:
      --enable-libjpeg (enabled)
          build with libjpeg support for accessing JPEG files
      --with-libjpeg-prefix=PFX (/usr)
          prefix where libjpeg is installed
      --with-libjpeg-includes=DIR (/usr/include)
          directory where libjpeg headers [jpeglib.h] are installed
      --with-libjpeg-libs=DIR (/usr/lib)
          directory where libjpeg libraries [libjpeg.so] are installed
    affected modules: export_jpg.so

  LoRS/IBP  http://loci.cs.utk.edu/
    related options:
      --enable-ibp (disabled)
          build with ibp support for accessing files on depots
      --with-libfdr=DIR ()
          base directory for libfdr
      --with-libibp=DIR ()
          base directory for libibp
      --with-libexnode=DIR ()
          base directory for libexnode
      --with-liblbone=DIR ()
          base directory for liblbone
      --with-libend2end=DIR ()
          base directory for libend2end
      --with-liblors=DIR ()
          base directory for liblors
    affected modules: none (only core).

Optional modules:

  --enable-pv3
      enable PV3 support (http://earthsoft.jp/PV3/dv.html)
  --enable-nuv
      enable NuppelVideo support
