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experimental
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This change is a fix / extension of the newbestrefmv
experiment. As such it is presented without IFDEF.
The change creates a new context for coding inter modes
in vp9_find_mv_refs(). This replaces the context that
was previously calculated in vp9_find_near_mvs().
The new context is unoptimized and not necessarily
any better at this stage (results pending), but eliminates
the need for a legacy call to vp9_find_near_mvs().
Based on numbers from Scott, this could help decode
speed by several %.
In a later patch I will add support for forward update of
context (assuming this helps) and refine the context as
necessary.
Change-Id: I1cd991b82c8df86cc02237a34185e6d67510698a
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experimental
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Experiment to test speed trade off of reducing the
extent of the ref mv search.
Reducing the maximum number of tested candidates to 9 had
minimal net effect on quality in any of the tests sets.
Reduction to 7 has a small negative impact (worst was STD-HD
at about -0.2%).
This change is in response to the apparently high number of
decode cycles reported in regard to mv-ref selection.
Change-Id: I0e92e92e324337689358495a1ec9ccdeb23dc774
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Change-Id: I962be949845f881df551d101708e6ba9d8a3d6a2
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This fixes encoder/decoder mismatches with the superblock experiment
turned on whenever a superblock is encoded using the 4x4 transform.
Change-Id: Iefec7055e8d25f8efdbba66c4261bbd322d335a3
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This should prevent inconsistent results between identical encodes with
the superblock experiment turned on.
Change-Id: I41a005fae53f2eb59736cc70041185fb7d63cfca
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Preliminary patch on a new 4x4 intra mode B_CONTEXT_PRED where the
dominant direction from the context is used to encode. Various decoder
changes are needed to support decoding of B_CONTEXT_PRED in conjunction
with hybrid transforms since the scan order and tokenization depends on
the actual direction of prediction obtained from the context. Currently
the traditional directional modes are used in conjunction with the
B_CONTEXT_PRED, which also seems to provide the best results.
The gains are small - in the 0.1% range.
Change-Id: I5a7ea80b5218f42a9c0dfb42d3f79a68c7f0cdc2
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Missing eobs agrument in vp9_dequant_idct_add_16x16_c
Change-Id: I826b1afa0a4ee6398f7373325aa0c75e6a866937
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frames" into experimental
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The altref frame is packed along with the next P frame. So that
outside of the codec there are now only two types of frames P and I.
Also, now it is one frame in and one frame out with respect to the
codec. Apart from that, all the frames are length encoded with the
length of each frame appended to the frame itself. There are
two categories of frames and each of them will look as follows:
- Packed frames (an altref along with the succeeding p frame)
- altref_frame_data | altref_lenngth | frame_data | length
- Unpacked frames (all frames other than the above)
- frame_data | length
Change-Id: If1eabf5c473f7d46b3f2d026bd30c803588c5330
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experimental
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Change-Id: Id23917ce2555519d2e9172dd6ce3a283f2235d26
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* changes:
fix a crash in 2-pass encoding with test-decode on
enable build on windows with msvc
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only call decoding when encoder produce compressed data
Change-Id: I1840762246afaaad76db6c6d29032ad15aa38afd
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Change-Id: I34057b87d9713dc819b8c69990dd1408b8c79342
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cleanup
Change-Id: I565eee40d900e0441ad211b65ac829fc5b93d94a
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Also split superblock handling code out of decode_macroblock() into
a new function decode_superblock(), for easier readability.
Derf +0.05%, HD +0.2%, STDHD +0.1%. We can likely get further gains
by allowing to select mb_skip_coeff for a subset of the complete SB
or something along those lines, because although this change allows
coding smaller transforms for bigger predictors, it increases the
overhead of coding EOBs to skip the parts where the residual is
near-zero, and thus the overall gain is not as high as we'd expect.
Change-Id: I552ce1286487267f504e3090b683e15515791efa
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As suggested by Yaowu, simplified 16x16 dequant and idct. In decoder,
after detoken step, we know the number of non-zero dct coefficients
(eobs) in a macroblock. Idct calculation can be skipped or simplified
based on eobs, which improves the decoder performance.
Change-Id: I9ffa1cb134bcb5a7d64fcf90c81871a96d1b4018
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Include upstream changes (variance fixes) into the merged code base.
Change-Id: I4182654c1411c1b15cd23235d3822702613abce1
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Include upstream changes (unit test fixes, in particular) into the
merged code base.
Change-Id: I096f8a9d09e2532fbec0c95d7a995ab22fa54b29
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Creates a merge between the master and experimental branches. Fixes a
number of conflicts in the build system to allow *either* VP8 or VP9
to be built. Specifically either:
$ configure --disable-vp9 $ configure --disable-vp8
--disable-unit-tests
VP9 still exports its symbols and files as VP8, so that will be
resolved in the next commit.
Unit tests are broken in VP9, but this isn't a new issue. They are
fixed upstream on origin/experimental as of this writing, but rebasing
this merge proved difficult, so will tackle that in a second merge
commit.
Change-Id: I2b7d852c18efd58d1ebc621b8041fe0260442c21
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Change-Id: Ib39ad47a7d188f3b45416937b7eeb28c3e79b74c
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In the variance calculations the difference is summed and later squared.
When the sum exceeds sqrt(2^31) the value is treated as a negative when
it is shifted which gives incorrect results.
To fix this we force the multiplication to be unsigned.
The alternative fix is to shift sum down by 4 before multiplying.
However that will reduce precision.
For 16x16 blocks the maximum sum is 65280 and sqrt(2^31) is 46340 (and
change).
This change is based on:
1698234 Missed some variance casts
fea3556 Fix variance overflow
Change-Id: I2c61856cca9db54b9b81de83b4505ea81a050a0f
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so they are consistent with actual definitions of the functions
Change-Id: Ie4b4e81b3da3e288fc2edbbd2b393a5c54d2556b
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Change-Id: Iedaa108ddb65f54d768424f9c47ad4d069b656fd
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s/([vV][pP])8/$19/
additionally dct.h was removed; declare the _c functions that are used
in the tests. the TODO for conversion to parameterized tests still
remains.
Change-Id: I73db9425a57075bbb78a92693ba6b320578981cd
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Change-Id: I0ff77f51595599cc3de5183c6c655fd261e3d925
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Change-Id: Ic3e3559384a0e72abdc9b66a19865474c2a41b38
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Change-Id: I69fd876dd51eb2b4a4a449faa5922225e9508b42
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Change-Id: I44b3ad780cef6f448fa17ff8e28fea87ef9cd518
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Converted vp9_short_fdct16x16_c and vp9_short_idct16x16_c to
integer versions.
Change-Id: Ie3ec985a890ac0f4f4f5818e6f0122e00c8af69f
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Change-Id: Ibfac7e000509d2017eac9a108060e534a19fec33
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there are still a couple type of warning left, which are related to
double constants assigned to float type. As those would be addressed
by the conversion of transforms into integer version. This commit
has left those un-dealt with.
Change-Id: I48fd9b489c0c27ad6b543f4177423419f929f2bb
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Documentation is typically auto-detected by checking for php and
doxygen. Add an option to explicitly disable it.
Remove toggle keywords from libraries, examples, documentation and
unit tests. They were not consistent with the default status.
Change-Id: I21049675ccfd8e58ac612cd058641b197db5c0eb
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calculate the txfm_cache difference first as both values may be
INT64_MAX with the intent that they cancel each other out.
Change-Id: I214d072458e1b24f60289974e6302af1aff7b66c
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Removed invoke search from encoder
Change-Id: I3d809b795abe6df0e71366edfe94026aaede14fb
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rd_pick_intra4x4mby_modes / rd_pick_intra8x8mby_modes would both use the
input value of 'rate_y' in the return calculation. In many places this
value is uninitialized. Remove the unneeded sum.
Change-Id: Icbd3df685303000301e69291c0ebc06f74bd548d
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Change-Id: I25c067326153455abe1a79f8f44f70b87350e655
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Change-Id: I8ea836ce92c1c96f1e2bdf45e704d36ec9dbc401
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into experimental
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