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Silences compile warning.
Change-Id: I4b207d97f8570fe29aa2710e4ce4f02e7e43b57a
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The mv_ref and sub_mv_ref token encodings are indexed from NEARESTMV
and LEFT4X4, respectively, rather than being zero-based like the
other token encodings.
Change-Id: I3699c3f84111209ecfb91097c4b900773e9a3ad5
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everything else uses lowercase detok
Change-Id: I9671e2e90eb2961208dfa81c00b3accb5749ec04
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The gf_active code is only used by the encoder, so it was moved from
common and decoder.
Change-Id: Iada15acd5b2b33ff70c34668ca87d4cfd0d05025
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Change-Id: Ie587972ccefd3c762b8cdf8ef39345cd22924b9b
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This patch changes a few numbers in the two constant arrays
for quantizer's zerobin and rounding factors, in general to
make the sum of the two factors for any Q to be 128. While
it might be beneficial to calibrate the two arrays for best
quantizer performance, it is not the purpose of this patch.
Normalizing the two arrays will enable quick optimization
of the current faster quantizer, i.e .zerobin check can be
removed.
Change-Id: If9abfd7929bf4b8e9ecd64a79d817c6728c820bd
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Replace the exponential search for optimal rounding during
quantization with a linear Viterbi trellis and enable it
by default when using --best.
Right now this operates on top of the output of the adaptive
zero-bin quantizer in vp8_regular_quantize_b() and gives a small
gain.
It can be tested as a replacement for that quantizer by
enabling the call to vp8_strict_quantize_b(), which uses
normal rounding and no zero bin offset.
Ultimately, the quantizer will have to become a function of lambda
in order to take advantage of activity masking, since there is
limited ability to change the quantization factor itself.
However, currently vp8_strict_quantize_b() plus the trellis
quantizer (which is lambda-dependent) loses to
vp8_regular_quantize_b() alone (which is not) on my test clip.
Patch Set 3:
Fix an issue related to the cost evaluation of successor
states when a coefficient is reduced to zero. With this
issue fixed, now the trellis search almost exactly matches
the exponential search.
Patch Set 2:
Overall, the goal of this patch set is to make "trellis"
search to produce encodings that match the exponential
search version. There are three main differences between
Patch Set 2 and 1:
a. Patch set 1 did not properly account for the scale of
2nd order error, so patch set 2 disable it all together
for 2nd blocks.
b. Patch set 1 was not consistent on when to enable the
the quantization optimization. Patch set 2 restore the
condition to be consistent.
c. Patch set 1 checks quantized level L-1, and L for any
input coefficient was quantized to L. Patch set 2 limits
the candidate coefficient to those that were rounded up
to L. It is worth noting here that a strategy to check
L and L+1 for coefficients that were truncated down to L
might work.
(a and b get trellis quant to basically match the exponential
search on all mid/low rate encodings on cif set, without
a, b, trellis quant can hurt the psnr by 0.2 to .3db at
200kbps for some cif clips)
(c gets trellis quant to match the exponential search
to match at Q0 encoding, without c, trellis quant can be
1.5 to 2db lower for encodings with fixed Q at 0 on most
derf cif clips)
Change-Id: Ib1a043b665d75fbf00cb0257b7c18e90eebab95e
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Improved decoder performance by 9% for the clip used.
Change-Id: I8fc5609213b7bef10248372595dc85b29f9895b9
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This is the first modification of VP8 multi-thread decoder, which uses
same threads to decode macroblocks and then do loopfiltering for each
frame.
Inspired by Rob Clark, synchronization was done on every 8 macroblocks
instead of every macroblock to reduce lock contention.
Comparing with the original code, this implementation gave about 15%-
20% performance gain while decoding my test clips on a Core2 Quad
platform (Linux).
The work is not done yet.
Test on other platforms are needed.
Change-Id: Ice9ddb0b511af1359b9f71e65066143c04fef3b5
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Clang defaults to C99 mode, and inline works differently in C99.
(gcc, on the other hand, defaults to a special gnu-style inlining,
which uses different syntax.) Making the functions static makes sure
clang doesn't decide to discard a function because it's too large to
inline.
Thanks to eli.friedman for the patch.
Fixes http://code.google.com/p/webm/issues/detail?id=114
Change-Id: If3c1c3c176eb855a584a60007237283b0cc631a4
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Fixes http://code.google.com/p/webm/issues/detail?id=96
The regex which postprocesses the gcc make-deps (-M) output was too
greedy and matching in the dependencies part of the rule rather than
the target only. The patch provided with the issue was not correct, as
it tried to match the .o at the end of the line, which isn't correct
at least for my GCC version. This patch matches word characters
instead of .*
Thanks to raimue and the MacPorts community for isolating this issue.
Change-Id: I28510da2252e03db910c017101d9db12e5945a27
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global label:data
^^
Provide nasm compatibility. No binary change by this patch with yasm
on {x86_64,i686}-fedora13-linux-gnu. Few longer opcodes with nasm on
{x86_64,i686}-fedora13-linux-gnu have been checked as safe.
Change-Id: I10f17eb1e4d4a718d4ebd1d0ccddc807c365e021
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Labels should end by colon (':'), nasm requires it.
Provide nasm compatibility. No binary change by this patch with yasm
on {x86_64,i686}-fedora13-linux-gnu. Few longer opcodes with nasm on
{x86_64,i686}-fedora13-linux-gnu have been checked as safe.
Change-Id: I0b2ec6f01afb061d92841887affb5ca0084f936f
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nasm knows only OWORD. yasm knows both OWORD and DQWORD.
Provide nasm compatibility. No binary change by this patch with yasm on
{x86_64,i686}-fedora13-linux-gnu. Few longer opcodes with nasm on
{x86_64,i686}-fedora13-linux-gnu have been checked as safe.
Change-Id: I62151390089e90df9a7667822fa594ac20b00e78
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Fixes http://code.google.com/p/webm/issues/detail?id=136
Change-Id: I5a3e294061644a1a9718e8ba4a39548ede25cc42
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Fixes implicit declaration warning for 'mach_task_self'.
Patch courtesy of timeless at gmail.com
Change-Id: I9991dedd1ccfddc092eca86705ecbc3b764b799d
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Removed the global variables vp8_an and vp8_cd. vp8_an was causing problems
because it was increasing the .bss by 1572864 bytes.
Change-Id: I6c12e294133c7fb6e770c0e4536d8287a5720a87
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To facilitate more testing related to quantizer and rate
control, the old version quantizer is added back. old and
new quantizer can be switched back and forth by define or
un-define the macro "EXACT_QUANT".
Change-Id: Ia77e687622421550f10e9d65a9884128a79a65ff
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When running configure automatically through the make dist target,
reuse the arguments passed to the original configure command.
Change-Id: I40e5b8384d6485a565b91e6d2356d5bc9c4c5928
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follow up to Change I0e51492d: neon: disable asm quantizer
Now x86 doesn't segfault with --disable-runtime-cpu-detect and -p=2
Change-Id: I8ca127bb299198efebbcbd5a661e81788361933f
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So many places to update ...
Change-Id: Ide957b40cc833f99c2d1849acade6850fbf7585d
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The assembly version of the quantizer has not been updated to match
the new exact quantizer introduced in commit e04e2935. That commit tried
to disable this code but missed the non-RTCD case.
Thanks to David Baker <david.baker at openmarket.com> for isolating the
issue and testing this fix.
Change-Id: I0e51492dc6f8e44d2c10b587427448bf94135c65
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* changes:
Change the x86 idct functions to do reconstruction at the same time
Combine idct and reconstruction steps
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Jeff Muizelaar posted some changes to the idct/reconstruction c code.
This is the equivalent update for the arm assembly.
This shows a good boost on v6, and a minor boost on neon.
Here are some numbers for highway in qcif, 2641 frames:
HEAD neon: ~161 fps
new neon: ~162 fps
HEAD v6: ~102 fps
new v6: ~106 fps
The following functions have been updated for armv6 and neon:
vp8_dc_only_idct_add
vp8_dequant_idct_add
vp8_dequant_dc_idct_add
Conflicts:
vp8/decoder/arm/armv6/dequantdcidct_v6.asm
vp8/decoder/arm/armv6/dequantidct_v6.asm
Resolved by removing these files. When I rewrote the functions, I also
moved the files to dequant_dc_idct_v6.asm/dequant_idct_v6.asm
Change-Id: Ie3300df824d52474eca1a5134cf22d8b7809a5d4
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Change-Id: I896fe6f9664e6849c7cee2cc6bb4e045eb42540f
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This moves the prediction step before the idct and combines the idct and
reconstruction steps into a single step. Combining them seems to give an
overall decoder performance improvement of about 1%.
Change-Id: I90d8b167ec70d79c7ba2ee484106a78b3d16e318
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At the end of the decode, frame buffers were being copied.
The frames are not updated after the copy, they are just
for reference on later frames. This change allows multiple
references to the same frame buffer instead of copying it.
Changes needed to be made to the encoder to handle this. The
encoder is still doing frame buffer copies in similar places
where pointer reference could be done.
Change-Id: I7c38be4d23979cc49b5f17241ca3a78703803e66
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ssh://review.webmproject.org:29418/libvpx into KfRateBugMerged
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In two pass encodes, the calculation of the number of bits
allocated to a KF group had the potential to overflow for high data
rates if the interval is very long.
We observed the problem in one test clip where there was one
section where there was an 8000 frame gap between key frames.
Change-Id: Ic48eb86271775d7573b4afd166b567b64f25b787
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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
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Tweaked table to fit to 80 characters.
Change-Id: Ie6ba80e0b31b33e23d2bf78599abe223369fcefb
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These files were out of date and no longer maintained.
Token decoding has implemented the no-crash code which
is incompatible with this arm assembly code.
Change-Id: Ibf729886c56fca48181af60b44bda896c30023fc
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The libs.mk file must be installed for the vpx.vcproj file to be
generated. It was being installed, but not in the src/ directory as
expected.
Also missed include files yasm.rules, quantize_x86.h
Change-Id: Ic1a6f836e953bfc954d6e42a18c102a0114821eb
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Change /build to -build to avoid problems when builds are run within
msys bash shells.
Change-Id: Ie68d72f702adad00d99be8a01c7a388c3af7657d
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Add targets x86-win32-vs9 and x86_64-win64-vs9 for support of Visual
Studio 2008-- this removes the need to convert the vs8 projects before
using them within the IDE.
Change-Id: Idb83e2ae701e07d98db1be71638280a493d770a2
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timeless@gmail.com"
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Change submitted for Adrian Grange. Convert threshold
calculation in ARNR filter to a lookup table.
Change-Id: I12a4bbb96b9ce6231ce2a6ecc2d295610d49e7ec
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Change maximum ARNR filter width to 15.
Change-Id: I3b72450ea08e96287445ec18810630ee2292954c
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Previously we had assumed that it was necessary to give a full frame's
bit allocation to the alt ref frame if it has been created through temporal
filtering. This is not the case. The active max quantizer control
insures that sufficient bits are allocated if needed and allocating a
full frame's worth of bits creates an excessive overhead for the ARF.
Change-Id: I83c95ed7bc7ce0e53ccae6ff32db5a97f145937a
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Change-Id: I37f10fbe4fbb505c1d34980a59af3e817c287e22
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