The output of simple_decoder, as well as the default format for the
ivf{enc,dec} tools, is I420. The encoder examples are changed to default
to I420 as well. This is desirable because passing the output of
simple_encoder to simple_decoder would otherwise have the chroma planes
flipped, which is unexpected.

Change-Id: I9d4f10ace594a54a7fc4f9a1f9187365c01fd638

This renames the vpx_codec/ directory to vpx/, to allow applications
to more consistently reference these includes with the vpx/ prefix.
This allows the includes to be installed in /usr/local/include/vpx
rather than polluting the system includes directory with an
excessive number of includes.

Change-Id: I7b0652a20543d93f38f421c60b0bbccde4d61b4f

Split the 'make install' target into two: install and dist. dist
retains the old make install behavior of building a "distribution"
release, with source files, build system, etc. install does what
one one expects -- installs into a tree in the filesystem, /usr/local
by default.

Change-Id: I0805681ac10f853ef94cdc3aa70981c6bea81b45

Deprecate img_fmt type and constants removed in 6cd4a10e allowing older
code to build.
Addresses: http://code.google.com/p/webm/issues/detail?id=25

Change-Id: I786bff1ebde4d1621c6f58dcc685f382bb733e29

Allows the default generic-gnu target, which is selected if no
target is specified, to be build in PIC mode. The generic-gnu target
was not being selected as a gcc target, because it doesn't end in
gcc.

Change-Id: I28a2a420109c34fd87a20911f6455c8d8d5ded75

Avoid an potential name clashes and match other external types.
s/IMG_FMT/VPX_$&/g
s/img_fmt/vpx_$&/g

Change-Id: Ia7ad5bbb6424416b37e71e5f5eb1eca31c3c707f

This doesn't play well with autotools, and the preprocessor magic is
confusing and unhelpful in the vp8-only context.

Change-Id: I2fcb57e6eb7876ecb58509da608dc21f26077ff1

1 liner bug fix for issue #10.  Surrounding quotation marks were
missing from a variable, causing a warning message inside a test
clause.

Change-Id: Ia21421f77c309bbd87332547374241269bbe5326

Replace all anonymous structs with struct name matching current typedef
minus _t.

Change-Id: I639295e8f1bc4651fffc9286a7dba5171c92ce92

Visual c++ compiler uses xmm registers for floating point
operations for 64 bit architecture, therefore its calling
convention requires the preservation of xmm6-xmm15 in any
function that have used these registers. However, the sse2
functions, that were originally written for 32 bit windows,
may have used xmm6 and xmm7 without preserving the content.
In this particular case, the compiler used xmm6 to save
the variable "two_pass_min_rate", the value of the variable
is mucked up by our sse2 optimized loop filter functions,
hence the results of release/debug mismatching.