The variable is introduced in commit 2e53e9e5 to make more use of
trellis quantization, but this is no longer necessary after RDMULT
was made adaptive in a number of later commits.

Change-Id: I7420522ec7723f38cf77033466c25afb405d52ae

global values were being referenced, but the GOT was not being set up.
as the GOT is only required for PIC, this issue wasn't caught in the
default configuration.

Change-Id: I8006e53776139362a76f2c80cf9d0f8458602b2f
http://code.google.com/p/webm/issues/detail?id=328

In NEWMV mode, currently, full search is used as the refining search
after n-step search. By replacing it with an iterative diamond search
of radius 1 largely reduced the computation complexity, but still
maintained the same encoding quality since the refining search is
done for every macroblock instead of only a small precentage of
macroblocks while using full search.

Tests on the test set showed a 3.4% encoding speed increase with none
psnr & ssim loss.

Change-Id: Ife907d7eb9544d15c34f17dc6e4cfd97cb743d41

Change-Id: I9467d7a50eac32d8e8f3a2f26db818e47c93c94b

Paul pointed out that the pointer to the gf_active_flags is not being
properly incremented in multithreaded encoder. This commit fixes the
issue by making sure the gf_active_ptr points to the starting of next
group of mb rows.

Change-Id: I3246e657d23beabb614dfb880733a68a5fd7e34c

Commit db5057c7 introduced a bug in that the active_worst_quality
selected by the 2 pass rate controller was being overridden for key
frames, causing a severe quality loss.

Change-Id: I4865a6fbe3e94e9b4fb9271c7dd68b455d7b371d

vp8_fast_quantize_b_neon function updated and further optimized.
 - match current C implementation of fast quantizer
 - updated to use asm_enc_offsets for structure members
 - updated ads2gas scripts to handle alignment issues

Change-Id: I5cbad9c460ad8ddb35d2970a8684cc620711c56d

The existing emulation of posix semaphores on Windows uses SetEvent()
and WaitForSingleObject(), which implements a binary semaphore, not a
counting semaphore as implemented by posix. This causes deadlock when
used with the expected posix semantics. Instead, this patch uses the
CreateSemaphore() and ReleaseSemaphore() calls (introduced in Windows
2000) which have the expected behavior.

This patch also reverts commit eb16f00c, which split a semaphore that
was being used with counting semantics into two binary semaphores.
That commit is unnecessary with corrected emulation.

Change-Id: If400771536a27af4b0c3a31aa4c4e9ced89ce6a0

This patch is to fix a rare hang in multi-thread encoder that was
only seen on Windows. Thanks for John's help in debugging the
problem. More test is needed.

Change-Id: Idb11c6d344c2082362a032b34c5a602a1eea62fc

Change-Id: I562b6e01c32bb51d00f3b95faf757fc7dc29a3a3

Changed 8-neighbor searching to 4-neighour searching, and continued
searching until the center point is the best match.

Test on test set showed 1.3% encoding speed improvement as well as
0.1% PSNR and SSIM improvement at speed=-5 (rt mode).

Will continue to improve it.

Change-Id: If4993b1907dd742b906fd3f86fee77cc5932ee9a

The commit also removed the slow ssim calculation that uses a 7x7
kernel, and revised the comments to better describe how sample ssim
values are computed and averaged

Change-Id: I1d874073cddca00f3c997f4b9a9a3db0aa212276

Typo.

Change-Id: I9cc6a4587c3d93c9f0da5e101d376741fc9622a4

Change-Id: I97124670926433bf1593c91660d8b8f8482ea9ce

removed inline from recon_wrapper_sse2.c to build
for visual stuido

Change-Id: I74a3482950448e2cdb30e9cd7087145b440d8a22

Code cleanup.

Change-Id: Ic8b0167851116c64ddf08e8a3d302fb09ab61146

Thanks Jason for pointing that out on #vp8. ;-).

Change-Id: I5330a753e752a8704b78a409597472628e0b26a5

The skip flag is never set by the encoder for SPLITMV.

Change-Id: I5ae6457edb3a1193cb5b05a6d61772c13b1dc506

decoding

before
10.425
10.432
10.423
=10.426

after:
10.405
10.416
10.398
=10.406, 0.2% faster

encoding

before
14.252
14.331
14.250
14.223
14.241
14.220
14.221
=14.248

after
14.095
14.090
14.085
14.095
14.064
14.081
14.089
=14.086, 1.1% faster

Change-Id: I483d3d8f0deda8ad434cea76e16028380722aee2

Insertion sort performs better for sorting small arrays. In real-
time encoding (speed=-5), test on test set showed 1.7% performance
gain with 0% PSNR change in average.

Change-Id: Ie02eaa6fed662866a937299194c590d41b25bc3d

The end-of-buffer check is hoisted out of the inner loop. Gives
about 0.5% improvement on x86_64.

Change-Id: I8e3ed08af7d33468c5c749af36c2dfa19677f971

Allow more reliable detection of truncated bitstreams by being more
precise with the count of "virtual" bits in the value buffer.
Specifically, the VP8_LOTS_OF_BITS value is accumulated into count,
rather than being assigned, which was losing the prior value,
increasing the required tolerance when testing for the error condition.

Change-Id: Ib5172eaa57323b939c439fff8a8ab5fa38da9b69

Combine calc_iframe_target_size, previously only used for forced
keyframes, with calc_auto_iframe_target_size, which handled most
keyframes.

Change-Id: I227051361cf46727caa5cd2b155752d2c9789364

This is a first step in cleaning up the redundancies between
vp8_calc_{auto_,}iframe_target_size. The pick_frame_size() function is
moved to ratectrl.c, and made to be the primary interface. This means
that the various calc_*_target_size functions can be made private.

Change-Id: I66a9a62a5f9c23c818015e03f92f3757bf3bb5c8

Fixed test vector mismatch that was introduced
in the "Removed dc_diff from MB_MODE_INFO"
(Ie2b9cdf9e0f4e8b932bbd36e0878c05bffd28931)

Change-Id: I98fa509b418e757b5cdc4baa71202f4168dc14ec

the decision to run the regular or simple loopfilter is made outside the
function and managed with pointers

stop tracking the option in two places. use filter_type exclusively

Change-Id: I39d7b5d1352885efc632c0a94aaf56b72cc2fe15

Likely introduced by a bad automatic merge from gerrit.

Change-Id: I0c6dd6ec18809cf9492f524d283fa4a3a8f4088b

Remove estimate_min_frame_size() and calc_low_ss_err(), as they are
never referenced.

Change-Id: I3293363c14ef70b79c4678ca27aa65b345077726

Rather than using a default size of 1/2 or 3/2 seconds for the first
frame, use a fraction of the initial buffer level to give the
application some control.

This will likely undergo further refinement as size limits on key
frames are currently under discussion on codec-devel@, but this gives
much better behavior for small buffer sizes as a starting point.

Change-Id: Ieba55b86517b81e51e6f0a9fe27aabba295acab0

Adds a control to limit the maximum size of a keyframe, as a function of
the per-frame bitrate. See this thread[1] for more detailed discussion:

[1]: http://groups.google.com/a/webmproject.org/group/codec-devel/browse_thread/thread/271b944a5e47ca38

Change-Id: I7337707642eb8041d1e593efc2edfdf66db02a94

vp8_adjust_key_frame_context() divides by
estimate_keyframe_frequency() which can
return 0 in the case where --kf-max-dist=0.

Change-Id: Idfc59653478a0073187cd2aa420e98a321103daa

The accumulator array is an integer array, so use paddd instead of paddw
to add values to it. Fixes overflows when using large --arnr-maxframes
(>8) values.

Change-Id: Iad83794caa02400a65f3ab5760f2517e082d66ae

The arguments to these fprintfs are int not long int so
the format specifier should be "%d" and not "%ld". This
was writing garbage in the linux build.

Change-Id: I3d2aa8a448d52e6dc08858d825bf394929b47cf3

add an sse4 quantizer so we can use pinsrw/pextrw and keep values in xmm
registers instead of proxying through the stack. and as long as we're
bumping up, use some ssse3 instructions in the EOB detection (see ssse3
fast quantizer)
pick up about a percent on 32bit and about two on 64bit.

Change-Id: If15abba0e8b037a1d231c0edf33501545c9d9363

ref_frame is set to INTRA_FRAME for keyframes.  The B_PRED
mode is only used in intra frames.

Change-Id: I9bac8bec7c736300d47994f3cb570329edf11ec0

The dc_diff flag is used to skip loopfiltering.  Instead
of setting this flag in the decoder/encoder, we now check
for this condition in the loopfilter.

Change-Id: Ie2b9cdf9e0f4e8b932bbd36e0878c05bffd28931

force_no_skip is always set to zero.

Change-Id: I89b61c5e0bee34627a9c07c05f3517e1db76af77

Code cleanup.  The build inter predictor functions are
redundantly checking the mode_info_context for either
INTRA_FRAME or SPLITMV.

Change-Id: I4d58c3a5192a4c2cec5c24ab1caf608bf13aebfb

Remove tot_key_frame_bits and prior_key_frame_size[] as they were
tracked but never used. Remove intra_frame_target, as it was only
used to initialize prior_key_frame_size.

Refactor vp8_adjust_key_frame_context() some to remove unnecessary
calculations.

Change-Id: Icbc2c83d2b90e184be03e6f9679e678f3a4bce8f

the win64 abi requires saving and restoring xmm6:xmm15. currently
SAVE_XMM and RESTORE XMM only allow for saving xmm6:xmm7. allow
specifying the highest register used and if the stack is unaligned.

Change-Id: Ica5699622ffe3346d3a486f48eef0206c51cf867