Universal builds create subdirectories for each target. Without
BUILD_PFX we only generated one vpx_rtcd.h instead of one for each.

Change-Id: I1caed4e018c8865ffc8da15e434cae2b96154fb4

Newer XCodes have moved the SDK path from /Developer/SDKs

Use a suggestion from jorgenisaksson@gmail.com to locate it

osx_sdk_dir is not required to be set. Apple now offers a set
command line tools which do not require this. isysroot is also
not required in newer versions of XCode so only set it when we
are confident in the location.

There remain issues with the iOS configure steps which will be
addressed later

Change-Id: I4f5d7e35175d0dea84faaa6bfb52a0153c72f84b

doxygen < 1.7.? seems to have been more tolerant of single line
\if/\endif

This change fixes warnings such as:
mainpage.dox:13: warning: unable to resolve reference to `vp8_encoder-'
for \ref command
vpx_decoder.h:193: warning: explicit link request to 'n' could not be
resolved

Change-Id: If3d04af5ede1b0d1e2c63021d0e4ac8f98db20b2

Change-Id: Ifb536403ef302b597864eae1d05aa9e2bb15d4c7

This issue likely doesn't appear in the unmodified encoder, but
sufficient hacking on the mode selection loop can expose it.

Change-Id: I8a35831e8f08b549806d0c2c6900d42af883f78f

Some refactoring in rdopt.c and pickinter.c.

Change-Id: I4f50020eb3313c37f4d441d708fedcaf219d3038

Set an iniital/minimun boost level for the frame rate
factor of key frame target size setting.

Change-Id: If2586f4ac76a1fa89378aa652a58607356a1f426

* changes:
  threading.c refactoring
  Decoder loops refactoring

Added recon above/left to MACROBLOCKD
Reworked decode_macroblock

Change-Id: I9c26870af75797134f410acbd02942065b3495c1

Break MFQE code into it's own file.

It is currently only valid for 16x16 and 8x8 Y blocks. It also filters
4x4 U/V blocks.

Refactor filtering and add associated assembly. Limited test cases show
--mfqe introduces a penalty of ~20% with HD content. The assembly
reduces the penalty to ~15%

Change-Id: I4b8de6b5cdff5413037de5b6c42f437033ee55bf

Last commit went the wrong way.

Change-Id: I5e47ee6c25b0893dfa84318229b93c57dfeec24e

The MFQE function of the postprocessor depends on these

Change-Id: I256a37c6de079fe92ce744b1f11e16526d06b50a

build/make/version.sh requires CHANGELOG to generate vpx_version.h
The file is already included when building the documentation. However,
documentation is not build if doxygen/php are not present.

This is necessary when using '--enable-install-srcs --enable-codec-srcs'
and 'make dist'

Change-Id: Icada883a056a4713d24934ea44e0f6969b68f9c2

Coefficient costing failed to take account of the first branch
being skipped ( 0 vs eob) if the previous token is 0.

Fixed rd to account for slightly increased token cost & cleaned up
warning message

Change-Id: I56140635d9f48a28dded5a816964e973a53975ef

Propagate debug setting to the EBML struct. When writing the application
name, this allows us to strip the version code and keep the output
metadata static.

Change-Id: I8e06c6abd743bedbff5af6242bbdae5d55754538

There's no useful reason to limit this timer to 1 second.

Change-Id: Idd1960268624e8bdfe958d99833ae6482fdb423e

This seeks to boost the size of the keyframe if the entire section
is a single frame clip

Change-Id: I3c00268dc155b047dc4b90e514cf403d55a4f8ef

Change-Id: Ie1796f272dc33bf5a1c8ac990da625961d272aa9

When we do 2-pass encoding, elapsed time is accumulated through
whole 2-pass process, which gives incorrect time and fps results
for second pass. This change fixed that by resetting the time
accumulator for second pass.

Change-Id: Ie6cbf0d0e66e6874e7071305e253c6267529cf20

Produce the token partitions on-the-fly, while processing each MB.
Context is updated at the beginning of each frame based on the
previoud frame's counters. Optimally encoder outputs partitions in
separate buffers. For frame based output, partitions are concatenated
internally.

Limitations:
    - enabled just in combination with realtime-only mode
    - number of encoding threads has to be equal or less than the
    number of token partitions. For this reason, by default the encoder
    will do 8 token partitions.
    - vpxenc supports partition output (-P) just in combination with
    IVF output format (--ivf)

Performance:
    - Realtime encoder can be up to 13% faster (ARM) depending on the number
    of threads and bitrate settings. Constant gain over the 5-16 speed
    range.
    - Token buffer reduced from one frame to 8 MBs

Quality:
    - quality is affected by the delayed context updates. This again
    dependents on input material, speed and bitrate settings. For VC
    style input the loss seen is up to 0.2dB. If error-resilient=2
    mode is used than the effect of this change is negligible.

Example:
./configure --enable-realtime-only --enable-onthefly-bitpacking
./vpxenc --rt --end-usage=1 --fps=30000/1000 -w 640 -h 480
--target-bitrate=1000 --token-parts=3 --static-thresh=2000
--ivf -P -t 4 -o strm.ivf tanya_640x480.yuv

Change-Id: I127295cb85b835fc287e1c0201a67e378d025d76

applies a penalty to intra blocks in order to cut down on blockiness in
easy sections.

Change-Id: Ia9e5df16328b0bf01bf0f2e6e61abcb687316c12

Eliminated some mb branches along with other code cleanups.
This is part of an ongoing effort to remove cut/paste
code in the decoder.

Change-Id: Ifabb0f67cafa6922b5a0e89a0d03a9b34e9e5752

* changes:
  Eliminated reconintra_mt.c
  Eliminated vp8mt_build_intra_predictors_mbuv_s

Reworked the code to use vp8_build_intra_predictors_mby_s,
vp8_intra_prediction_down_copy, and vp8_intra4x4_predict_d_c
functions instead.  vp8_intra4x4_predict_d_c is a decoder-only
version of vp8_intra4x4_predict.  Future commits will fix this
code duplication.

Change-Id: Ifb4507103b7c83f8b94a872345191c49240154f5