Commit Graph

141 Commits

Author SHA1 Message Date
John Koleszar
8dd8287e16 Y4M input support for 4:2:2, 4:4:4, 4:4:4:4
Adds a new experiment CONFIG_NON420 that allows other chroma subsamplings
to be passed to the codec. This commit allows the data to be passed from
a y4m input file through vpxenc to the codec, where they're currently
rejected. Later commits will finish support for this inside the codec.

Change-Id: Ib3aac604d8cad9e24cef395fa1067f16ba7e8e43
2013-05-06 14:35:19 -07:00
Jingning Han
12bf0796e6 Clamp inferred motion vectors only
Clamp only the motion vectors inferred from neighboring reference
macroblocks. The motion vectors obtained through motion search in
NEWMV mode are constrained during the search process, which allows
a relatively larger referencing region than the inferred mvs.
Hence further clamping the best mv provided by the motion search may
affect the efficacy of NEWMV mode.

Synchronized the decoding process. The decoded mvs in NEWMV modes
should be guaranteed to fit in the effective range. Put a mv range
clamping function there for security purpose.

This improves the coding performance of high motion sequences, e.g.,
derf set:
foreman 0.233%
husky   0.175%
icd     0.135%
mother_daughter 0.337%
pamphlet        0.561%

stdhd set:
blue_sky 0.408%
city     0.455%
also saw sunflower goes down by -0.469%.

Change-Id: I3fcbba669e56dab779857a8126a91b926e899cb5
2013-04-08 11:37:03 -07:00
John Koleszar
81708cc326 Convert g_frame_parallel_decoding to control interface
Restore ABI compatibility with the master branch.

Change-Id: Ic57e7e1de09ab33bd37990e52a63ba7c8f1432a4
2013-03-27 11:07:26 -07:00
John Koleszar
771fc832f3 Merge branch 'master' into experimental
Pick up VP8 encryption, quantization changes, and some fixes to vpxenc

Conflicts:
	test/decode_test_driver.cc
	test/decode_test_driver.h
	test/encode_test_driver.cc
	vp8/vp8cx.mk
	vpxdec.c
	vpxenc.c

Change-Id: I9fbcc64808ead47e22f1f22501965cc7f0c4791c
2013-03-27 10:46:19 -07:00
Deb Mukherjee
23144d2345 Implicit weighted prediction experiment
Adds an experiment to use a weighted prediction of two INTER
predictors, where the weight is one of (1/4, 3/4), (3/8, 5/8),
(1/2, 1/2), (5/8, 3/8) or (3/4, 1/4), and is chosen implicitly
based on consistency of the predictors to the already
reconstructed pixels to the top and left of the current macroblock
or superblock.

Currently the weighting is not applied to SPLITMV modes, which
default to the usual (1/2, 1/2) weighting. However the code is in
place controlled by a macro. The same weighting is used for Y and
UV components, where the weight is derived from analyzing the Y
component only.

Results (over compound inter-intra experiment)
derf: +0.18%
yt: +0.34%
hd: +0.49%
stdhd: +0.23%

The experiment suggests bigger benefit for explicitly signaled weights.

Change-Id: I5438539ff4485c5752874cd1eb078ff14bf5235a
2013-03-26 16:58:56 -07:00
Dmitry Kovalev
8015a9aedc Fixing fourcc for VP8 and VP9.
Changing 0x00 ('') fourcc byte to 0x30 ('0'). For VP8 from
0x00385056 to 0x30385056, for VP9 from 0x00395056 to 0x30395056.

Change-Id: I26b1b603c20dd41f7aeabf8cd7893dfd5b1c8b59
2013-03-22 11:56:02 -07:00
John Koleszar
b3c350a1a9 Add VP9_GET_REFERENCE control
This is like VP8_COPY_REFERENCE, but returns a pointer to the reference
frame rather than a copy of it. This is useful when the application
doesn't know what the size of the reference is, as is the case when
scaling is in effect.

Change-Id: I63667109f65510364d0e397ebe56217140772085
2013-03-13 19:08:06 -07:00
John Koleszar
2bf563c335 vpxenc: improve progress indicators with --skip
Account for skipped input frames when calculating frame rates, ETA.

Fixes https://code.google.com/p/webm/issues/detail?id=556

Change-Id: I9c8b51e02e9ff0ab2cf6f16fc9382fc7f6c77b80
2013-03-11 15:03:00 -07:00
Ronald S. Bultje
97dd7342b8 vpxenc: actually report mismatch on stderr.
Because ctx->err is not set in that case, it will not report the error
on stderr.

Change-Id: Ifacbf5a03e676fd56522b03c0281d6c723c563ee
2013-03-04 16:49:00 -08:00
John Koleszar
406ec6b62e Fix rollover and pass 1 time estimate
Fixes a rollover of the cx_time variable for encodes that take
over ~4200 seconds. Also enable the time estimate in first pass.

Change-Id: Ib5a98ee71bccd79a804d709cec7260651d0b7141
2013-03-04 13:21:54 -08:00
John Koleszar
7dfec96059 vpxenc: support scaling prior to encoding
Scales the input of the encoder using libyuv's "box filter". Each stream
may have a different width and height specified. If the width (or
height) parameter is missing (or is explicitly set to 0) then the value
will be calculated based on the specified height (or width) and the
input file's dimensions, preserving its aspect ratio. Leaving the height
unspecified behaves similarly.

Change-Id: I700ef89ce54fb87588420a71c39c0e3e73b1a40e
2013-03-04 13:21:47 -08:00
Ronald S. Bultje
2d13e7b33e Don't exit on decode errors in vpxenc.
Allows the user to specify whether decode errors should be fatal or not.
Also makes mismatches optionally fatal.

Change-Id: I58cff4a82f3d42f5653b91cf348a7f669377e632
2013-03-04 13:19:09 -08:00
John Koleszar
60d8c50514 Add estimated completion time to vpxenc
Make the progress line more useful by providing per-frame updates of
processing frame rate and estimated time remaining.

Fixes issue #534.

Change-Id: Ic91551878ff4b2f5db1cedaafb588add220cfa52
2013-03-04 13:18:55 -08:00
John Koleszar
69c67c9531 Merge master branch into experimental
Picks up some build system changes, compiler warning fixes, etc.

Change-Id: I2712f99e653502818a101a72696ad54018152d4e
2013-03-01 11:06:05 -08:00
John Koleszar
d962bd530d Merge "Fix rollover and pass 1 time estimate" into experimental 2013-02-27 17:43:03 -08:00
John Koleszar
ebf8b9fc6d Fix rollover and pass 1 time estimate
Fixes a rollover of the cx_time variable for encodes that take
over ~4200 seconds. Also enable the time estimate in first pass.

Change-Id: Ib5a98ee71bccd79a804d709cec7260651d0b7141
2013-02-27 12:29:25 -08:00
John Koleszar
34882b9bf5 vpxenc: support scaling prior to encoding
Scales the input of the encoder using libyuv's "box filter". Each stream
may have a different width and height specified. If the width (or
height) parameter is missing (or is explicitly set to 0) then the value
will be calculated based on the specified height (or width) and the
input file's dimensions, preserving its aspect ratio. Leaving the height
unspecified behaves similarly.

Change-Id: Ic7026810b13be030826be80dc6f7fc4aaf0c35d0
2013-02-27 08:22:40 -08:00
Jingning Han
babbd5d170 Forward butterfly hybrid transform
This patch includes 4x4, 8x8, and 16x16 forward butterfly ADST/DCT
hybrid transform. The kernel of 4x4 ADST is sin((2k+1)*(n+1)/(2N+1)).
The kernel of 8x8/16x16 ADST is of the form sin((2k+1)*(2n+1)/4N).

Change-Id: I8f1ab3843ce32eb287ab766f92e0611e1c5cb4c1
2013-02-21 18:24:28 -08:00
Ronald S. Bultje
9837bf4d40 Don't exit on decode errors in vpxenc.
Allows the user to specify whether decode errors should be fatal or not.
Also makes mismatches optionally fatal.

Change-Id: I58cff4a82f3d42f5653b91cf348a7f669377e632
2013-02-21 12:27:00 -08:00
Yaowu Xu
d262e26cc7 Merge lossless experiment
Change-Id: I7b7b8d4fda3a23699e0c920d727f8c15d37d43aa
2013-02-20 07:54:28 -08:00
John Koleszar
34732576c1 Merge "Add estimated completion time to vpxenc" into experimental 2013-02-19 10:51:42 -08:00
Ronald S. Bultje
89a206ef2f Add support for tile rows.
These allow sending partial bitstream packets over the network before
encoding a complete frame is completed, thus lowering end-to-end
latency. The tile-rows are not independent.

Change-Id: I99986595cbcbff9153e2a14f49b4aa7dee4768e2
2013-02-13 12:31:00 -08:00
John Koleszar
25b6e9f4d3 Add estimated completion time to vpxenc
Make the progress line more useful by providing per-frame updates of
processing frame rate and estimated time remaining.

Fixes issue #534.

Change-Id: Ic91551878ff4b2f5db1cedaafb588add220cfa52
2013-02-12 21:24:13 -08:00
Jingning Han
d15e1da494 Butterfly ADST based hybrid transform
Refactor the 8x8 inverse hybrid transform. It is now consistent
with the new inverse DCT. Overall performance loss (due to the
use of this variant ADST, and the rounding errors in the butterfly
implementation) for std-hd is -0.02.

Fixed BUILD warning.

Devise a variant of the original ADST, which allows butterfly
computation structure. This new transform has kernel of the
form: sin((2k+1)*(2n+1) / (4N)). One of its butterfly structures
using floating-point multiplications was reported in Z. Wang,
"Fast algorithms for the discrete W transform and for the discrete
Fourier transform", IEEE Trans. on ASSP, 1984.

This patch includes the butterfly implementation of the inverse
ADST/DCT hybrid transform of dimension 8x8.

Change-Id: I3533cb715f749343a80b9087ce34b3e776d1581d
2013-02-07 10:07:46 -08:00
Ronald S. Bultje
1407bdc243 [WIP] Add column-based tiling.
This patch adds column-based tiling. The idea is to make each tile
independently decodable (after reading the common frame header) and
also independendly encodable (minus within-frame cost adjustments in
the RD loop) to speed-up hardware & software en/decoders if they used
multi-threading. Column-based tiling has the added advantage (over
other tiling methods) that it minimizes realtime use-case latency,
since all threads can start encoding data as soon as the first SB-row
worth of data is available to the encoder.

There is some test code that does random tile ordering in the decoder,
to confirm that each tile is indeed independently decodable from other
tiles in the same frame. At tile edges, all contexts assume default
values (i.e. 0, 0 motion vector, no coefficients, DC intra4x4 mode),
and motion vector search and ordering do not cross tiles in the same
frame.
t log

Tile independence is not maintained between frames ATM, i.e. tile 0 of
frame 1 is free to use motion vectors that point into any tile of frame
0. We support 1 (i.e. no tiling), 2 or 4 column-tiles.

The loopfilter crosses tile boundaries. I discussed this briefly with Aki
and he says that's OK. An in-loop loopfilter would need to do some sync
between tile threads, but that shouldn't be a big issue.

Resuls: with tiling disabled, we go up slightly because of improved edge
use in the intra4x4 prediction. With 2 tiles, we lose about ~1% on derf,
~0.35% on HD and ~0.55% on STD/HD. With 4 tiles, we lose another ~1.5%
on derf ~0.77% on HD and ~0.85% on STD/HD. Most of this loss is
concentrated in the low-bitrate end of clips, and most of it is because
of the loss of edges at tile boundaries and the resulting loss of intra
predictors.

TODO:
- more tiles (perhaps allow row-based tiling also, and max. 8 tiles)?
- maybe optionally (for EC purposes), motion vectors themselves
  should not cross tile edges, or we should emulate such borders as
  if they were off-frame, to limit error propagation to within one
  tile only. This doesn't have to be the default behaviour but could
  be an optional bitstream flag.

Change-Id: I5951c3a0742a767b20bc9fb5af685d9892c2c96f
2013-02-05 15:43:03 -08:00
KO Myung-Hun
dd8d0134e0 Disable USE_POSIX_MAP on OS/2
Change-Id: Ib88ab619fa4e1593e85ca325555f2c4648ac9bc7
2013-02-03 21:50:58 +09:00
Deb Mukherjee
dfd89f2eab Adding a frame parallel decoding mode
Adds a flag to disable features that would inhibit frame parallel
decoding. This includes backward adaptation and MV sorting based
on search in ref frame buffer.

Also includes some minor clean-ups.

Change-Id: I434846717a47b7bcb244b37ea670c5cdf776f14d
2013-01-25 17:16:19 -08:00
Paul Wilkins
f75976253e MSVS compiler error
Visual Studio reports and error on the line
  static const int bsize2 = bsize >> 1;

"error C2099: initializer is not a constant"

Also warnings on signed/unsigned mismatch

Change-Id: I76cb06f736bd9c90107a26bfb3c130ec3f6c33de
2013-01-24 16:58:41 +00:00
Deb Mukherjee
01cafaab1d Adds an error-resilient mode with test
Adds an error-resilient mode where frames can be continued
to be decoded even when there are errors (due to network losses)
on a prior frame. Specifically, backward updates are turned off
and probabilities of various symbols are reset to defaults at
the beginning of each frame. Further, the last frame's mvs are
not used for the mv reference list, and the sorting of the
initial list based on search on previous frames is turned off
as well.

Also adds a test where an arbitrary set of frames are skipped
from decoding to simulate errors. The test verifies (1) that if
the error frames are droppable - i.e. frame buffer updates have
been turned off - there are no mismatch errors for the remaining
frames after the error frames; and (2) if the error-frames are non
droppable, there are not only no decoding errors but the mismatch
PSNR between the decoder's version of the post-error frames and the
encoder's version is at least 20 dB.

Change-Id: Ie6e2bcd436b1e8643270356d3a930e8989ff52a5
2013-01-23 21:56:15 -08:00
John Koleszar
16810c10c1 Merge branch 'vp9-preview' of review:webm/libvpx
Merge the vp9-preview branch into master.

Change-Id: If700b9054676f24bed9deb59050af546c1ca5296
2012-12-27 09:37:19 -08:00
John Koleszar
5ebe94f9f1 Build fixes to merge vp9-preview into master
Various fixups to resolve issues when building vp9-preview under the more stringent
checks placed on the experimental branch.

Change-Id: I21749de83552e1e75c799003f849e6a0f1a35b07
2012-12-26 11:21:09 -08:00
Deb Mukherjee
0742b1e4ae Fixing 8x8/4x4 ADST for intra modes with tx select
This patch allows use of 8x8 and 4x4 ADST correctly for Intra
16x16 modes and Intra 8x8 modes when the block size selected
is smaller than the prediction mode. Also includes some cleanups
and refactoring.

Rebase.

Change-Id: Ie3257bdf07bdb9c6e9476915e3a80183c8fa005a
2012-11-28 16:21:12 -08:00
James Zern
6475224e4f vpxenc: don't print STATS_PKT size w/--quiet
missed in 1fc3cc8

Change-Id: I80ffc1179245bc124e9938aad92a4d5fdfee187b
2012-11-17 16:36:02 -08:00
John Koleszar
08b43fef3a webm: add support for V_VP9
Tags VP9 tracks with the V_VP9 video type when writing to .webm files,
and supports decoding both from vpxdec without specifying --codec.

Change-Id: I0ef61dee06f4db2a74032b142a4b4976c51faf6e
2012-11-15 15:07:27 -08:00
John Koleszar
a9c7597adc support building vp8 and vp9 into a single lib
Change-Id: Ib8f8a66c9fd31e508cdc9caa662192f38433aa3d
2012-11-15 10:46:17 -08:00
Ronald S. Bultje
195172cf87 Fix frame number on which the mismatch is reported in vpxenc.
Change-Id: I962be949845f881df551d101708e6ba9d8a3d6a2
2012-11-10 16:22:49 -08:00
Ronald S. Bultje
88d703cd4d Fix another crash in vpxenc with --pass=1 and --test-decode.
Change-Id: Id23917ce2555519d2e9172dd6ce3a283f2235d26
2012-11-09 09:07:50 -08:00
Yaowu Xu
606c6479c5 fix a crash in 2-pass encoding with test-decode on
only call decoding when encoder produce compressed data

Change-Id: I1840762246afaaad76db6c6d29032ad15aa38afd
2012-11-08 16:22:54 -08:00
John Koleszar
7b8dfcb5a2 Rough merge of master into experimental
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
2012-11-07 11:30:16 -08:00
John Koleszar
6ad3b74a58 vpxenc: merge with master
Change-Id: Ic3e3559384a0e72abdc9b66a19865474c2a41b38
2012-11-06 12:04:53 -08:00
John Koleszar
83b1d907da vpx: merge with master
Change-Id: I44b3ad780cef6f448fa17ff8e28fea87ef9cd518
2012-11-06 12:04:53 -08:00
Ronald S. Bultje
4b2c2b9aa4 Rename vp8/ codec directory to vp9/.
Change-Id: Ic084c475844b24092a433ab88138cf58af3abbe4
2012-11-01 16:31:22 -07:00
James Zern
1fc3cc8e97 vpxenc: add -quiet option
suppresses encoder progress

Change-Id: Iacc04d98de970f13697c002363ee3a40a03f021b
2012-10-26 10:45:30 -07:00
Ronald S. Bultje
3121497041 Add encoder/decoder mismatch information to internal stats file.
Change-Id: Ibb6ba26e8718d3af27553ca59443a8c6aec7749d
2012-10-11 10:13:48 -07:00
Yaowu Xu
d71ba03822 silent compiling warnings for VC9 build
Change-Id: Iaa947e640f27e6f6eaf7d845f243536bca2df513
2012-08-20 11:45:01 -07:00
Christian Duvivier
a1168155a7 Fix warnings.
Change-Id: I4b911e4173da30c164bde7ea50bc80a70fbbb745
2012-08-14 16:23:32 -07:00
Adrian Grange
c9d343f3e5 Added const specifier to remove warning
The "codecs" array is defined as const so too
should the local variable that points too it.

Change-Id: I536a9ced52257dc44a04fc1a3cad94c1e86f69aa
2012-07-24 12:50:03 -07:00
Jim Bankoski
1b16e74813 Dll build of libvpx
Change-Id: I74e50b4dfbe73eb98e1dce1695a9973f637220c0
2012-07-23 14:51:21 -07:00
John Koleszar
c6b9039fd9 Restyle code
Approximate the Google style guide[1] so that that there's a written
document to follow and tools to check compliance[2].

[1]: http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml
[2]: http://google-styleguide.googlecode.com/svn/trunk/cpplint/cpplint.py

Change-Id: Idf40e3d8dddcc72150f6af127b13e5dab838685f
2012-07-17 11:46:03 -07:00
Hui Su
e44ee38aef Add lossless compression mode.
This commit adds lossless compression capability to the experimental
branch. The lossless experiment can be enabled using --enable-lossless
in configure. When the experiment is enabled, the encoder will use
lossless compression mode by command line option --lossless, and the
decoder automatically recognizes a losslessly encoded clip and decodes
accordingly.

To achieve the lossless coding, this commit has changed the following:
    1. To encode at lossless mode, encoder forces the use of unit
quantizer, i.e, Q 0, where effective quantization is 1. Encoder also
disables the usage of 8x8 transform and allows only 4x4 transform;
    2. At Q 0, the first order 4x4  DCT/IDCT have been switched over
to a pair of forward and inverse Walsh-Hadamard Transform
(http://goo.gl/EIsfy),  with proper scaling applied to match the range
of the original 4x4 DCT/IDCT pair;
    3. At Q 0, the second order remains to use the previous
walsh-hadamard transform pair. However, to maintain the reversibility
in second order transform at Q 0, scaling down is applied to first
order DC coefficients prior to forward transform, and scaling up is
applied to the second order output prior to quantization. Symmetric
upscaling and downscaling are added around inverse second order
transform;
    4. At lossless mode, encoder also disables a number of minor
features to ensure no loss is introduced, these features includes:
        a. Trellis quantization optimization
        b. Loop filtering
        c. Aggressive zero-binning, rounding and zero-bin boosting
        d. Mode based zero-bin boosting

Lossless coding test was performed on all clips within the derf set,
to verify that the commit has achieved lossless compression for all
clips. The average compression ratio is around 2.57 to 1.
(http://goo.gl/dEShs)

Change-Id: Ia3aba7dd09df40dd590f93b9aba134defbc64e34
2012-06-28 17:09:47 -07:00