MJPEG Tools Svn

Need <stdlib.h> for abs() prototype - otherwise:
motionsearch_deint.c:205: warning: implicit declaration of function 'abs'

Cleanup - malloc/free shouldn't be inside loops, allocate the memory once and
be done with it!

Small speedup by not constantly malloc'ing and free'ing arrays (simulating
auto variables).

code cleanage...

Use the provided YUV4MPEG2 ('y4m') chroma sampling names (Y4M_CHROMA_422, etc)
instead of creating a duplicate set (CHROMA422, ...).

What started out as adding interlace detection (check the 'fiel' atom) for
quicktime files turned into a general cleanup effort. No need to have
duplicate definitions for interlacing (#define LAV_INTER_TOP_FIRST Y4M_ILACE_TOP_FIRST, ...)
so replace the copies (LAV_*) with their Y4M_* equivalents.

Get the sample aspect from the 'pasp' atom in Quicktime files. This requires
a newer version of libquicktime so the required version of libquicktime was
bumped to 0.9.7

Consolidate the dataformat checking in 1 place. Previously there were two
places which made _different_ checks for the data format. The YUV cases are
still wrong or missing support code but at least now the check is only made
in one place.

Eventually a decision should be made to either implement support for the
various "YUV" formats or remove the incomplete (incorrect) portions that are
present.

Oops - forgot to include a few files in the distribution kit: README, ChangeLog,
TODO, INSTALL

some bugfixes (greenlines top and below), more preparation to support more
chroma-modes... Currently outputs 420 at half field-rate