Originally committed as revision 19489 to svn://svn.ffmpeg.org/ffmpeg/trunk

Rationale:
- Current versions of XLC accept gcc flags
- XLC can't compile FFmpeg

Originally committed as revision 19488 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19487 to svn://svn.ffmpeg.org/ffmpeg/trunk

Fixes issue 1282

Originally committed as revision 19486 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19485 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19484 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19483 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19482 to svn://svn.ffmpeg.org/ffmpeg/trunk

twoloop.)

Originally committed as revision 19481 to svn://svn.ffmpeg.org/ffmpeg/trunk

band in the twoloop scalefactor search.

Originally committed as revision 19480 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 29435 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale

Originally committed as revision 19479 to svn://svn.ffmpeg.org/ffmpeg/trunk

complex as originally planned.
Typo fixed (the background moves less linear now) and regression test
results updated.

Originally committed as revision 19478 to svn://svn.ffmpeg.org/ffmpeg/trunk

It is impossible to build E-AC-3 without AC-3.

Originally committed as revision 19477 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19476 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19475 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19474 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19473 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19472 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19471 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19470 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19469 to svn://svn.ffmpeg.org/ffmpeg/trunk

They share so much code that enabling one without the other is pointless.

Originally committed as revision 19468 to svn://svn.ffmpeg.org/ffmpeg/trunk

They are now enabled by the VC-1 decoder.

Originally committed as revision 19467 to svn://svn.ffmpeg.org/ffmpeg/trunk

They share so much code that enabling one without the other is pointless.

Originally committed as revision 19466 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19465 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19464 to svn://svn.ffmpeg.org/ffmpeg/trunk

get enabled, not demuxers/muxers.

Originally committed as revision 19463 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19462 to svn://svn.ffmpeg.org/ffmpeg/trunk

missed them in r19293. Re-enable version check on w32api.h if the
vfwcap input device has been selected.

Originally committed as revision 19461 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19460 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19459 to svn://svn.ffmpeg.org/ffmpeg/trunk

Closes issue 1273.

Originally committed as revision 19458 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19457 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19456 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19455 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19454 to svn://svn.ffmpeg.org/ffmpeg/trunk

Not all compilers claiming to be gcc support this attribute.

Originally committed as revision 19453 to svn://svn.ffmpeg.org/ffmpeg/trunk

It is possible that the compiler requires flags set by the --cpu
option, so we should not attempt to run it before those flags have
been added.

Originally committed as revision 19452 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 19451 to svn://svn.ffmpeg.org/ffmpeg/trunk