Corrected the initial Q range limits for the recode loop
to reflect the current allowed range for the frame.

In experimental work on constrained quality this bug was
causing unnecessary recodes.

Change-Id: I7e256fbfa681293b0223fe21ec329933d76c229f

Realized no need for new assembly code sum is already
calculated.

Change-Id: Ie2d94feb4b7c1f77c5359bca29b66228e41638c9

This patch adds a weighting factor on RDMULT for UV blocks. The change
has an overall gain about 0.5% based on ssim, between 0.1 and 0.2% by
psnr numbers.

Change-Id: I97781b077ce3bb7e34241b03268491917e8d1d72

Deallocating the buffers before re-allocating them.

The fix passed James Berry's test program for memory
leak check.

Change-Id: I18c3cf665412c0e313a523e3d435106c03ca438d

Moved the code from the segmentation loop into a function
which is now called for each segment. This will allow us
to change the segment order checking more easily.

Change-Id: I9510d26f0acae5a73043fcca8f1984b121d3e052

When auto_golden wasn't set it forced all frames to be a golden
frame. Now the manual configured frequency is adhered to.

Change-Id: I360acac9bc487db0d9c4d4da6ee41f70c227c539

The inter_minq table controls the range of quantizers available
for a particular frame in two pass relative to a max Q value.

The changes reduces the range somewhat. The effect of this
was a small increase (0.3% average) in psnr for the test set
but it should also help encode speed somewhat for higher
quality modes as it will reduce the number of iterations in the
recode loop.

The change damps the range of quantizers available locally
within a section of a clip and should therefore help keep quality
more uniform. If there is systematic overshoot or undershoot the
range can shift gradually to accommodate. However, there is
some increased risk of overshoot or undershoot against the target
bit rate in VBR mode and this risk will be more pronounced for short
clips.

The change damps the range of quantizers available locally
within a section of a clip and should therefore help keep quality
more uniform. If there is systematic overshoot or undershoot the
range can shift gradually to accommodate. However, there is
some increased risk of overshoot or undershoot against the
target bit rate in VBR mode and this risk will be more
pronounced for short clips.

Change-Id: I84465567d49ae767c6c73ff2a2aac30c895adb52

Add vp8_mv_pred() to better predict starting MV for NEWMV
mode in vp8_rd_pick_inter_mode(). Set different search
ranges according to MV prediction accuracy, which improves
encoder performance without hurting the quality. Also,
as Yaowu suggested, using diamond search result as full
search starting point and therefore adjusting(reducing)
full search range helps the performance.

Change-Id: Ie4a3c8df87e697c1f4f6e2ddb693766bba1b77b6

Merge commit 'refs/changes/79/779/2' of
    https://review.webmproject.org/p/libvpx

Conflicts:
	vp8/encoder/encodeintra.c
	vp8/encoder/encodemb.c

Change-Id: Id607063fabe92d99eeb3c380e8ca670b01bfb3ef

On a keyframe alt ref and golden are refreshed.  The flag was
not being set and so on the frame after a keyframe, motion
search would occur on the alt ref frame.  This is not necessary
because the alt ref frame identical to the last frame in this
scenario.

Handle corner case where a forward alt-ref frame is put
directly after a keyframe.

Change-Id: I9be4cf290d694f8cf2f9a31852014b5ccf1504d3

only do the variance calculation if necessary
( eg needed for breakout test)

remove warning comment in vpxenc.c: in case of 1x1 picture,
detect_bytes will be equal to '3' and we'll fall back to
RAW_TYPE.
fix read_frame() by tracking the pre-read buffer length
in the struct detect

Change-Id: If1ed86ee5260dcdbc8f9d10da6cbb84a4cc2f151

* changes:
  vp8_set_maps: remove hard-coded width/height
  vp8mt_alloc_temp_buffers: make prototype return void
  Disable compile warning for ERROR macro

The sz member of the vpx_codec_stream_info_t structure must be
initialized when passed to vpx_codec_peek_stream_info().

Change-Id: I2d13d287d9639262b932cf44671a595fdf3c38ef

The baseline bits per MB prediction tables have been
re calibrated based on the assumption that bits per mb
is inversely proportional to the quantizer level.

Change-Id: Ibd355c7acac4b8053dda1baf1032fe35f11da7f7

Added code to record spend so far against planed budget.

Change-Id: I5a3335346fa1771b2b1219df9f6127f9993d2594

was having: "vp8/encoder/onyx_if.c:5365: warning: comparison of unsigned expression >= 0 is always true"

macro_block_yrd and vp8_rdcost_mby are not called for SPLITMV.

Change-Id: I2224d3c8725df526d48426447482768d543752f1

Replaced existing code to decide if a frame recode is required
with a function call. This is to simplify addition of extra clauses
that may be needed for the planned constrained quality mode.

Also fixed a bug where by alt ref not considered in the test.

Change-Id: I3d40bb21abe3e19f8456761e6849deb171738b60

The example for disabling the active map used a hard-coded 320x240
resolution, rather than using what was passed on the command line.

Fixes #218

Change-Id: I3aed713e8aa7fcbf18dfbffd57f142b5cd9ee492

This function was never called in a context expecting a return value,
the return value was always a constant, and the !CONFIG_MULTITHREAD
path didn't have a return statement, which caused a compiler warning.
This patch changes the function to return void instead.

Fixes issue #231

Change-Id: I9ef7f56e54418b7265026c54fc4ed5660c1418d1

The ERROR macro collides wiith the MS SDK on Windows. Since we're not
making any win32 calls in this function, just #undef it first to take
ownership.

Change-Id: Ic18c60dfa3a33c52e6c49d3f4f8d3e7e3ac3341d

Clarify what the alt ref flags do when encoding.

Change-Id: I71f78e0f42edae633fb91840f29dfbe64362c44c

Adds native build configuration for Snow Leopard.  Useful when
users configure without arguments on OSX 10.6.

Change-Id: I0bd63912a25bbfb9d4c8d58a781d0f390792429c

There were a few errors in the comment section that describe VP8 token
alphabet table.

Change-Id: Ie6728a0e08bc3798893221b60408d5b201064bdc

x86-64 passes arguments in registers.  There is no need to push
them to the stack before using them.

This fixes 15acc84f where ebx
was not getting preserved on x86.

Change-Id: I1214b5f818a0201f75ab6ad7d5c6f448e09b16c2

The use of incorrect mv costing tables in the ARNR sub-pel
filtering code led to corruption of the altref buffer in some cases,
particularly at low data rates.

The average gain from this fix is about 0.3% but there are a few
extreme cases where nasty and visible artifacts manifested and
for these few data points the improvement is > 10%.

PGW and AWG

Change-Id: I95cc02b196a433e71d0d2bd2b933fe68ed31e796