Commit Graph

27 Commits

Author SHA1 Message Date
Deb Mukherjee
08f6471890 Add 8x8 transform to experimental branch
Please refer to previous commit messages for detailed info:
https://on2-git.corp.google.com/g/#change,5940
https://on2-git.corp.google.com/g/#change,6045

Change-Id: I8b16992f2f69c5a808ad40a3e32ef589cce7c59d
2011-07-20 09:49:22 -07:00
Yunqing Wang
ae8aa836d5 Merge "Copy macroblock data to a buffer before encoding it" 2011-06-30 11:14:24 -07:00
John Koleszar
b32da7c3da Use MAX_ENTROPY_TOKENS and ENTROPY_NODES more consistently
There were many instances in the code of vp8_coef_tokens and
vp8_coef_tokens-1, which was a preprocessor macro despite the naming
convention. Replace these with MAX_ENTROPY_TOKENS and ENTROPY_NODES,
respectively.

Change-Id: I72c4f6c7634c94e1fa066cd511471e5592c748da
2011-06-28 17:03:55 -04:00
Yunqing Wang
0d87098e08 Copy macroblock data to a buffer before encoding it
I got this idea from Pascal (Thanks). Before encoding a macroblock,
copy it to a 16x16 buffer, and then read source data from there
instead. This will help keep the source data in cache, and help
with the performance.

Change-Id: Id05f4cb601299150511d59dcba0ae62c49b5b757
2011-06-23 13:54:02 -04:00
Johann
04edde2b11 Merge "neon fast quantize block pair" 2011-06-06 13:42:58 -07:00
Scott LaVarnway
773768ae27 Removed B_MODE_INFO
Declared the bmi in BLOCKD as a union instead of B_MODE_INFO.
Then removed B_MODE_INFO completely.

Change-Id: Ieb7469899e265892c66f7aeac87b7f2bf38e7a67
2011-06-02 13:46:41 -04:00
Tero Rintaluoma
61f0c090df neon fast quantize block pair
vp8_fast_quantize_b_pair_neon function added to quantize
two adjacent blocks at the same time to improve performance.
 - Additional 3-6% speedup compared to neon optimized fast
   quantizer (Tanya VGA@30fps, 1Mbps stream, cpu-used=-5..-16)

Change-Id: I3fcbf141e5d05e9118c38ca37310458afbabaa4e
2011-06-01 10:48:05 +03:00
John Koleszar
048497720c Remove unused members of VP8_COMP
Various members that were either completely unreferenced or written
and not read.

Change-Id: Ie41ebac0ff0364a76f287586e4fe09a68907806e
2011-05-19 15:49:09 -04:00
Paul Wilkins
ff52bf3691 Restructure of activity masking code.
This commit restructures the mb activity masking code
to better facilitate experimentation using different metrics
etc. and also allows for adjustment of the zero bin either
for encode only or both the encode and mode selection
stages

It also uses information from the current frame rather than
the previous frame and the default strength has been
reduced.

Change-Id: Id39b19eace37574dc429f25aae810c203709629b
2011-05-13 10:37:50 +01:00
Johann
70f30aa95d store quant_shift as an unsigned char
in encodframe.c, quant_shift is set to 0 or 1 in vp8cx_invert_quant

only use 8 bits to store this, instead of 16. will allow saving an
xmm register in an updated version of the regular quantize

Change-Id: Ie88c47fe2aff5af0283dab1147fb2791e4b12f90
2011-04-13 13:50:12 -04:00
Yunqing Wang
3d6815817c Use full-pixel MV in mvsadcost calculation
MV sad cost error is only used in full-pixel motion search,
which only need full-pixel resolution instead of quarter-pixel
resolution. This change reduced mvsadcost table size, and
removed unneccessary pamameter passing since this table is
constant once it is generated.

Change-Id: I9f931e55f6abc3c99011321f1dfb2f3562e6f6b0
2011-04-01 16:41:58 -04:00
John Koleszar
02321de0f2 Fix relative include paths
Allow compiling without adding vp8/{common,encoder,decoder} to the
include paths.

Change-Id: Ifeb5dac351cdfadcd659736f5158b315a0030b6c
2011-02-10 15:09:44 -05:00
Scott LaVarnway
0ee525d6de Added vp8_update_zbin_extra
vp8cx_mb_init_quantizer was being called for every mode checked
in vp8_rd_pick_inter_mode.  zbin_extra is the only value that
really needs to be recalculated.  This calculation is disabled
when using the fast quantizer for mode selection.
This gave a small performance boost (~.5% to 1%).
Note: This needs to be verified with segmentation_enabled.

Change-Id: I62716a870b3c82b4a998bdf95130ff0b02106f1e
2011-01-24 11:00:56 -05:00
Scott LaVarnway
516ea8460b Use the fast quantizer for inter mode selection
Use the fast quantizer for inter mode selection and the
regular quantizer for the rest of the encode for good quality,
speed 1.  Both performance and quality were improved.  The
quality gains will make up for the quality loss mentioned in
I9dc089007ca08129fb6c11fe7692777ebb8647b0.

Change-Id: Ia90bc9cf326a7c65d60d31fa32f6465ab6984d21
2010-12-28 14:51:46 -05:00
John Koleszar
5e76dfcc70 Merge 'Add simple version of activity masking.'
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
2010-12-03 13:30:50 -05:00
Timothy B. Terriberry
8f75ea6b5c Convert [4][4] matrices to [16] arrays.
Most of the code that actually uses these matrices indexes them as
 if they were a single contiguous array, and coverity produces
 reports about the resulting accesses that overflow the static
 bounds of the first row.
This is perfectly legal in C, but converting them to actual [16]
 arrays should eliminate the report, and removes a good deal of
 extraneous indexing and address operators from the code.

Change-Id: Ibda479e2232b3e51f9edf3b355b8640520fdbf23
2010-10-21 17:04:30 -07:00
Timothy B. Terriberry
8d0f7a01e6 Add simple version of activity masking.
This uses MB variance to change the RDO weight for mode decision
 and quantization.
Activity is normalized against the average for the frame, which is
 currently tracked using feed-forward statistics.
This could also be used to adjust the quantizer for the entire
 frame, but that requires more extensive rate control changes.
This does not yet attempt to adapt the quantizer within the frame,
 but the signaling cost means that will likely only be useful at
 very high rates.

Change-Id: I26cd7c755cac3ff33cfe0688b1da50b2b87b9c93
2010-10-12 08:41:03 -04:00
John Koleszar
c2140b8af1 Use WebM in copyright notice for consistency
Changes 'The VP8 project' to 'The WebM project', for consistency
with other webmproject.org repositories.

Fixes issue #97.

Change-Id: I37c13ed5fbdb9d334ceef71c6350e9febed9bbba
2010-09-09 10:01:21 -04:00
Scott LaVarnway
0de458f6b9 Reduced the size of MB_MODE_INFO
Moved partition_bmi and partition_count out of MB_MODE_INFO and
placed into MACROBLOCK.  Also reduced the size of other members
of the MB_MODE_INFO struct.  For 1080p, the memory was reduced
by 1,209,516 bytes.  The decoder performance appeared to improve
by 3% for the clip used.
Note:  The main goal for this change is to improve the decoder
performance.  The encoder will be revisited at a later date for
further structure cleanup.

Change-Id: I4733621292ee9cc3fffa4046cb3fd4d99bd14613
2010-09-03 16:43:23 -04:00
Scott LaVarnway
99f46d62d9 Moved gf_active code to encoder only
The gf_active code is only used by the encoder, so it was moved from
common and decoder.

Change-Id: Iada15acd5b2b33ff70c34668ca87d4cfd0d05025
2010-08-11 11:54:25 -04:00
Timothy B. Terriberry
e04e293522 Make the quantizer exact.
This replaces the approximate division-by-multiplication in the
 quantizer with an exact one that costs just one add and one
 shift extra.
The asm versions have not been updated in this patch, and thus
 have been disabled, since the new method requires different
 multipliers which are not compatible with the old method.

Change-Id: I53ac887af0f969d906e464c88b1f4be69c6b1206
2010-07-23 08:48:01 -07:00
Yaowu Xu
d0dd01b8ce Redo the forward 4x4 dct
The new fdct lowers the round trip sum squared error for a
4x4 block ~0.12. or ~0.008/pixel. For reference, the old
matrix multiply version has average round trip error 1.46
for a 4x4 block.

Thanks to "derf" for his suggestions and references.

Change-Id: I5559d1e81d333b319404ab16b336b739f87afc79
2010-06-24 13:17:58 -07:00
John Koleszar
94c52e4da8 cosmetics: trim trailing whitespace
When the license headers were updated, they accidentally contained
trailing whitespace, so unfortunately we have to touch all the files
again.

Change-Id: I236c05fade06589e417179c0444cb39b09e4200d
2010-06-18 13:06:11 -04:00
Yaowu Xu
3225b893e8 minor cleanup of quantizer and fdct code
Change-Id: I7ccc580410bea096a70dce0cc3d455348d4287c5
2010-06-08 15:13:50 -07:00
Yaowu Xu
854c007a77 Remove duplicate and unused functions
Change-Id: I944035e720ef834561a9da0d723879a4f787312c
2010-06-07 07:41:07 -07:00
John Koleszar
09202d8071 LICENSE: update with latest text
Change-Id: Ieebea089095d9073b3a94932791099f614ce120c
2010-06-04 16:19:40 -04:00
John Koleszar
0ea50ce9cb Initial WebM release 2010-05-18 11:58:33 -04:00