Begin() will be called twice with 2-pass encodes, invoking
y4m_input_open which allocates memory; close the old instance first.

Change-Id: Id252a21d286ca9ae998bd87599d43aeb8d7d77aa

There was a bug in the previous code that if GOLDEN was better than
LAST neither would be used. LAST would get turned off due to superior
GOLDEN quality then all GOLDEN modes would get skipped.

Change-Id: I173f3720451707dab7b2cbbe8b8e6a047089bde7

Removing all copies of identical vp8_mse2psnr/vp9_mse2psnr functions.
Using vpx_sse_to_psnr() instead in all places.

Change-Id: I15beef9834d43d8fc8a8a7a2d1fc5de3d658fed8

Change-Id: I02f097fd7c4c787035f03114ddde5b04b2640b39

Change-Id: I747d26c544cc56feaaf7c75403f2f4c16a496bb7

Change-Id: I0b4fa1f8104b7fa5780d4e99e5401c14271a992d

Usage of encode_b_args is unnecessary because encode_block_pass1() doesn't
use them. That's why optimize_init_b() call is also not required.

Change-Id: Ib6cfe4916c2ca85749c90bb0adcba6fea592f9ac

The commit change to use partitions sizes directly from last frame
for frames directly where last frame selects partitions sizes based
on coding efficiency.

On --rt --cpu-used=-5, the change hurts compression by 4% but reduces
encoding time by ~20%

Change-Id: Ia68665e5c8489b7bfcf5fac7768332fba88928e6

for inter and intra respectively

Change-Id: I7764d3af780072f7bd7bde201f454dcdd2816e76

Modify existing test to also check the case of dropping
(i.e., skip decoding) a consecutive list of frames.

Change-Id: Ia8c1195559f952e86e6697996931d3a920c05ae3

Add dequantizeb_neon.c
- vp8_dequantize_b_loop_neon

vpxdec  --summary --noblit ../videos/tears_of_steel_1080p.webm
Before => After, 13.25 => 13.23 (fps)

Change-Id: Iebe3b0c6ed2359c778b0570763c5681ae25fef0c
Signed-off-by: James Yu <james.yu@linaro.org>

This function is already called in vp9_initialize_rd_consts().

Change-Id: I88c0484a7274660287fa25fdf5cdb721d3284e01

Change-Id: Ia79f975f54829b8ae6b568ca5c05f4f1f541706f

Add dequant_idct_neon.c
- vp8_dequant_idct_add_neon

vpxdec  --summary --noblit ../videos/tears_of_steel_1080p.webm
Before => After, 13.25 => 13.22 (fps)

Change-Id: Id48f39e1da58dd3d8d37658e94989411997f4f7c
Signed-off-by: James Yu <james.yu@linaro.org>

25e55526.

Change-Id: I17ac67c3ced91ad4f057b296f7e8dc86a3389f26

Change-Id: Ic7553a037493107c33cfb9815178a54095a289ec

Add dc_only_idct_add_neon.c
- vp8_dc_only_idct_add_neon

vpxdec  --summary --noblit ../videos/tears_of_steel_1080p.webm
Before => After, 13.25 => 13.24 (fps)

Change-Id: I5e9e277ec3a3ca67e13c8cc4c324a6fbe8a897fc
Signed-off-by: James Yu <james.yu@linaro.org>

Change-Id: If859c9d58a8fe3f478d409b9e9ca59bcee8fd35d

This commit builds the actual prediction block in sub-pixel accuracy
and uses which to calculate SAD for non-RD mode decision. In the trail
run on pedestrian_area at 1080p, rtc speed -7 runtime goes from
23495 ms -> 25107 ms (7% slower). The compression performance is
improved by 20.57% for rtc test set.

Change-Id: I438589cd103fe99f1b50c2d1939ac6ca43fa0157