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The commit added a clamp to the 2nd motion vector used in compound
prediction to insure mv within UMV borders. The clamp is similar to
that of the first motion vector except that No SPLITMV is ever used
for the 2nd motion vector.
Change-Id: I26dd63c304bd66b2e03a083749cc98c641667116
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The commit added a new command line option --test-decode to vpxenc.
The option enables encoder to decode compressed frames and test recon
buffers from the decode against those from encode for mismatch.
There are a few limitations on this option currently, one of them
being the match test is not done on a number of lagged frames at
the end of an encoding.
Change-Id: I80c29b46dcdcea9f48107a506b235743068862fe
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The recoding loop save and restore frame coding context for recodes.
However in recoding of key frames, some of the coding context saved
was stale from last encoded inter frame. The save/restore sometimes
overwrites the re-inintialized coding context with saved context
from last frame, resulting in encoder/decoder mismatch
Change-Id: I354ae2f71074d142602d51d06544c05a2462caaf
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this commit added a command line option to skip first n frames from
input file to facilitate debugging and testing.
Change-Id: I4ffc5f85fa7e193ea4bdee08cb236717de8beef1
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In a previous commit, the duplicate of headerfile defaultcoefcounts.h
was identified. This commit updates the .mk file to ensure configure
and make works properly for all platforms.
Change-Id: I31a39c809a734ba438ee53db700f252e9a03eddd
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The maximum psnr has a marginal impact on the overall output in high
quality encodings, the change will make sure the psnr output to be
consistent with encoder internal stats.
Change-Id: I35cf2f85008ec127a7d91c9eb69fa7811798ae32
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Removed the copy in encoder and changed to use the one in common
Change-Id: Ief0985a50ffd6053a269638fd4816b055ca273ec
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Pulled out super block code for the snapshot as this
is not quite ready and will need an extensive re-merge.
Change-Id: I436369b511257447a7b0ea064016cb63f5011849
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https://gerrit.chromium.org/gerrit/#change,17319 fixes cost estimating
to take skip_eob into account. No quality difference seen on derf set
tests, but about .4% gain on STD_HD set.
Change-Id: Ic5fe6d35ee021e664a6fcd28037b8432a0e470ca
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Change-Id: I4159ff365953598d9c9bc3ecacfb5c5f4a315b45
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This gives a modest gain on derf overall, although at low bitrates the
cost is still too high, so this can be improved further.
Patch 2. Re-base and fix 80 column issues
Change-Id: Ida2f9fa3fe75370669f6a27b37108dc602231c63
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The commit changed to compute UV intra RD estimates for 4x4 and 8x8
separately to be used in mode decision for MB modes associated with
the appropriate transform size respectively. Now finally after many
other changes related 8x8 quantizer zbin boost and zbin_mode_boost,
this change overall helps the HD(with 8x8) by around ~.13%.
(avg .13% glb .13% ssim .17%)
The commit also has a few changes for eliminating compiler warnings.
Change-Id: Ibab35dad44820c87e6b44799c66f8d519cc37344
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The commit added the correct Zbin_mode_boost initialization based on
Intra Mode before using rate distortion to pick UV intra mode.
Change-Id: I8e57878ff356a06672f6fa2431be860bf9b9a5c7
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Change-Id: I4ea6d819bbbde312792c4f813ab63ea50cf0cd1d
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Change-Id: I6ade229ff400fe492709010ac5bada37f8afa73e
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Change-Id: I8e9b6b154e1a0d0cb42d596366380d69c00ac15f
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need further investigation on some odd behavior on one youtube clip
Change-Id: Iec477986a86b54ef26df2ef69d2f9484e2d1a043
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Change-Id: Ie5a7c87d71bd4a541463b68704620d89cec142cf
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Incorrect scaling of savings for t8x8.
Change-Id: If01e08f8c73faa73afc3c70e501e6acc54d7e26f
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Change-Id: I3b8a230d5b119910e6a6767331a4d97768089355
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Change-Id: Ibcd2b9b247ff9f83331dac47f91ec285e8955ff1
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Also remove duplicate build_intra_predictors_mby/uv().
Change-Id: I78607e7304952a9b962a5b25af9bb9c48692187b
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The commit fixed a problem where 8x8 regular quantizer was using the
4x4 zbinboost lookup table that only has 16 entries at each Q. The
commit assigned a uniform zbin boost value for all cases that there
are more than 16 consective zeros. The change only affects MBs using
8x8 transform. The fix has a slightly positive impact on quality.
Test results:
http://www.corp.google.com/~yaowu/no_crawl/hd_fixzbinb.html
(avg psnr: .26% glb psnr: .21% ssim: .28%)
Results on cif size clip are also positive even though gain is smaller
http://www.corp.google.com/~yaowu/no_crawl/derf_fixzbinb.html
Change-Id: Ibe8f6da181d1fb377fbd0d3b5feb15be0cfa2017
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This is the first patch for refactoring of the code related to
high-precision mv, so that 1/4 and 1/8 pel motion vectors can
co-exist in the same bit-stream by use of a frame level flag.
The current patch works fine for only use of 1/4th and
only use of 1/8th pel mv, but there are some issues with the
mode switching in between. Subsequent patches on this change Id
will fix the remaining issues.
Patch 2: Adds fixes to make sure that multiple mv precisions can
co-exist in the bit-stream. Frame level switching has been tested
to work correctly.
Patch 3: Fixes lines exceeding 80 char
Patch 4:
http://www.corp.google.com/~debargha/vp8_results/enhinterp.html
Results on derf after ssse3 bugfix, compared to everything
enabled but the 8-tap, 1/8-subpel and 1/16-subpel uv. Overall the
gains are about 3% now. Hopefully there are no more bugs lingering.
Apparently the sse3 bug affected the quartel subpel results more than
the eighth pel ones (which is understandabale because one bad predictor
due to the bug, matters less if there are a lot more subpel options
available as in the 1/8 subpel case).
The results in the 4th column correspond to the current settings.
The first two columns correspond to two settings of adaptive switching
of the 1/4 or 1/8 subpel mode based on initial Q estimate. These
do not work as good as just using 1/8 all the time yet.
Change-Id: I3ef392ad338329f4d68a85257a49f2b14f3af472
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Merge of the NEWLPF configuration experiment so it is always on.
Change-Id: I7054772b6eab28bad1ff807bfa54d98f83de9308
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The commit overall on derf test is break even to very slightly positive
comparing to all 4x4 transform.
Change-Id: I2a7c19599aa54c2d3a5b35db0dc891ba8a6a2b26
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Removal of some further code relating to partitions
and error resilience.
Spelling correction.
Change-Id: I36067aae67a4a23bec359541dda3400b0bbf26d0
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Removal of code relating to token partitioning
Change-Id: Iaf3c88d6758639a55bd92c3be5c51e6bed407a3c
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The "update" variable was used as a flag in coef_prob update dry run
that tests if a frame should encodes update at all. The wrong init
value forced the update happening always. fixing this has a minor
improvement in low bit rate situation when 8x8 transform is allowed.
Change-Id: Icb498e8d6a62fd074dcbc2065b797cba9237cb51
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Apparently the correct spelling of segement is segment !
Change-Id: I88593ee0523f251b3a96794c6166ef8c7898a029
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experimental
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Removal of error_resilient_mode features.
The interface has been left in place but does nothing.
Change-Id: I2407863bd0d3c98407354507423ca48d29f63b17
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For now the interface elements have been left in place
to make sure existing parameter files work but parameters
relating to drop frame wont do anything.
Change-Id: I579ee614726387381c546845dac4bc03c74c6a07
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Fixes a bug that was introduced in the high precision mv patch.
Change-Id: Ieadb433ebe4c3ef3e0e63944dab11528bf8bd73a
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Removal of code relating to spatial re sampling
Change-Id: Iff1bc651c62cd528f960c4b27f9673b172e68835
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Change-Id: Ifdb17b56090a317b2aa82cf125d57934902c5298
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The Lagrangian interpolation filter is maximally flat in the
passband. There is non-trivial improvement with the hd set, while
for derf the results are virtually unchanged.
See:
http://www.corp.google.com/~debargha/vp8_results/enhinterpn.html (derf)
http://www.corp.google.com/~debargha/vp8_results/enhinterpn_hd.html (HD)
Patch 2: Updated the results for derf in the html above to use the
new baseline. There is still about 4% improvement. Will update the
hd baseline later (since it takes 9 hours to run on my machine)
Patch 3: By mistake the default filter was left at 60 - should be 0
to use the new interpolation filter.
Change-Id: If5f64444976562415d68a2aeabb94fdfa0d47890
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Removed redundant code for ref frame cost.
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* Removes EDGE_PIXEL_FILTER for external sanpshot
* changes the default 8-tap filter based on high precision results
in http://www.corp.google.com/~debargha/vp8_results/enhinterpn.html
* changes the default prob tables for high-precision mv encoding to
favor zeros in the last bit (i.e. quarter pel). This is only important
for short clips.
Change-Id: I02bb0de8679d9eec06cdbcc8160dbf073cd847a4
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This is the initial patch for supporting 1/8th pel
motion. Currently if we configure with enable-high-precision-mv,
all motion vectors would default to 1/8 pel. Encode and
decode syncs fine with the current code. In the next phase
the code will be refactored so that we can choose the 1/8
pel mode adaptively at a frame/segment/mb level.
Derf results:
http://www.corp.google.com/~debargha/vp8_results/enhinterp_hpmv.html
(about 0.83% better than 8-tap interpoaltion)
Patch 3: Rebased. Also adding 1/16th pel interpolation for U and V
Patch 4: HD results.
http://www.corp.google.com/~debargha/vp8_results/enhinterp_hd_hpmv.html
Seems impressive (unless I am doing something wrong).
Patch 5: Added mmx/sse for bilateral filtering, as well as enforced
use of c-versions of subpel filters with 8-taps and 1/16th pel;
Also redesigned the 8-tap filters to reduce the cut-off in order to
introduce a denoising effect. There is a new configure option
sixteenth-subpel-uv which will use 1/16 th pel interpolation for
uv, if the motion vectors have 1/8 pel accuracy.
With the fixes the results are promising on the derf set. The enhanced
interpolation option with 8-taps alone gives 3% improvement over thei
derf set:
http://www.corp.google.com/~debargha/vp8_results/enhinterpn.html
Results on high precision mv and on the hd set are to follow.
Patch 6: Adding a missing condition for CONFIG_SIXTEENTH_SUBPEL_UV in
vp8/common/x86/x86_systemdependent.c
Patch 7: Cleaning up various debug messages.
Patch 8: Merge conflict
Change-Id: I5b1d844457aefd7414a9e4e0e06c6ed38fd8cc04
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