Support newer GIFLIB versions

Work with GIFLIB version >= 4.2

Several functions have been renamed or changed in signature.

GIFLIB is used by vo gif89a and demuxer gif.

Note about GIFLIB Version 4.2:
It does not work with vanilla GIFLIB 4.2 but it works with
versions that have re-added quantize support like e.g. the
package from arch linux.

Note about GIFLIB Version 5:
The newly added GCB functions use size_t but the necessary
standard headers are not included in gif_lib.h . To workaround
this:

* configure: use statement_check_broken to include stdlib.h
* vo gif89: include gif_lib.h after stdlib.h
* demuxer gif: no workaround needed,
               gif_lib.h is already included after stdlib.h



git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36367 b3059339-0415-0410-9bf9-f77b7e298cf2
Use again special value -1 to set original aspect ratio.

With -1, the switch_ratio command does exactly the calculation
being performed here.

This reverts changes in setting the value for the aspect ratio
made in r36358 and r36360.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36368 b3059339-0415-0410-9bf9-f77b7e298cf2
Add check marks to the video aspect ratio menu items.

This is analogous to the video size menu.

Based on a patch by Hans-Dieter Kosch, hdkosch kabelbw de.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36369 b3059339-0415-0410-9bf9-f77b7e298cf2
Keep paused mode when changing the aspect ratio.

Patch by Hans-Dieter Kosch, hdkosch kabelbw de.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36370 b3059339-0415-0410-9bf9-f77b7e298cf2
linux: controlled CreateFile() in win32 loader

it allows e.g. two pass encoding using vp6vfw.dll
af: winamp dsp audio filter
af: runtime equalizer
win32: added vo native directshow decoder
make fontconfig spam while creating font cache
win32: color console
audio: disable muting audio at exit on win32, mplayer somehow crashes
win32: color term osd
win32: disable_system_conf defaults to 1 on win32
win32: filename glob() + unicode
stream_cddb: fix include path on MinGW-w64
vcd support on MinGW-w64
qtx: qtx decoder spams on stdout and causes problems while piping streams
mpcodecs: make faac encoder dynamic load faac library at runtime
input: map control keys using human readable strings
input: avoid spam when pressing an unknown key