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Change-Id: Ic797c6be579c3434681a5e9dbb3900ae49c43958

Add control API VP9E_SET_TARGET_LEVEL that allows the encoder to
control the output bitstream level and/or keep level related
statistics.

Usage:
               255         do not care about level (default)
               0           keep level related stats only
               10          target for level 1
               11          target for level 1.1
               .
               .
               .
               62          target for level 6.2

Usage for vpxenc:

--target-level=0/255/10/11...

Change-Id: I31d1aeca19358b893e7577b4e63748c8e614034a

Added a TODO in vp9_cx_iface.c.

Change-Id: Ib987f20cab8417340a23ae676616de1df48e8a12

In multi-thread case, the encoder may crash if using encoder option
tile-rows > 0. To prevent that, force tile-rows=0 in this situation.
This is a workaround for WebM issue 1095:
https://bugs.chromium.org/p/webm/issues/detail?id=1095

The further fix can be done by adding synchronizations after a tile
row is encoded. But this will hurt multi-threaded encoder performance.
So, it is recommended to use tile-rows=0 while encoding with threads
> 1.

Change-Id: I656cbcc200f8d0410d09530e7981ad8f32fe7bc9

This is the identical change submitted for vp8 here:
https://chromium-review.googlesource.com/#/c/274107/

Tested this change on Mac OSX (10.10) and Linux
(Linux Mint 17 / Ubuntu 14.04) and in both cases:

- downloaded and compiled latest source for libvpx and ffmpeg
- confirmed ffmpeg would build sub-second frame rate webm files
  via the previous patch
- confirmed ffmpeg would *not* build fps < 1 for vp9
- made this change, recompiled libvpn and ffmpeg
- confirmed ffmpeg would now create the same webm with
  fps < 1
- confirmed the resulting file would play and was vp9 (e.g.
  would not play in Firefox (Linux version complained it was
  VP9 but mostly could play it) or older vlc, etc., but does
  play just fine in Google Chrome and a newer version of vlc.

Sorry I didn't catch this last time - but this seems a solid
change and it's handy to be able to create frame rates
less than one second.

-jk

Change-Id: I38fa32148de8c4c359f228cf08b9a4b83b5a52fb

the same as vp8, with the same reasoning from:
2a0d7b1a Reduce the default kf_max_dist to 128.

see also:
https://trac.ffmpeg.org/ticket/4904
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=815673

+ restore vpxenc behavior of taking the library default rather than
  forcing 5s

This change also exposes an issue with one-pass svc in cbr mode, keep
the old default in datarate_test.cc for now.

Change-Id: Id6d1244f42490b06fefc1a7b4e12a423a1f83e88

move to encoder_encode() as vp9_get_compressed_data() allocates data and
would require some modification to make its error return meaningful.

Change-Id: I8ddc390a1441afd0ff937842fa4ad1053c956133

this is allocated in init(), a NULL pointer on encode() should be
treated as a failure.

Change-Id: I3f55ea4a98be616bb5ab74d95ce4a3d6262e734a

Change-Id: Ic0ec32c1d7f7c08c9f956592dccbfd9060b1f624

VP8E_UPD_ENTROPY, VP8E_UPD_REFERENCE and VP8E_USE_REFERENCE have been
deprecated since the initial public release

Change-Id: Ied16b441eec13434d85f1ab115d49ccaf5f2f7b0

to make meaning of color_range obvious.

Change-Id: I303582e448b82b3203b497e27b22601cc718dfff

The setting of svc->spatial_layer_to_encode was missing
in VP9E_SET_SVC_LAYER_ID.

Change-Id: I015b1a64adb9ef2644d6477a02d9d9364c8462b9

Use the existing VP9_SET_SVC control to set the
first spatial layer to encode.

Since we loop over all spatial layers inside the encoder, the
setting of spatial_layer_id via VP9_SET_SVC has no relevance.
Use it instead to set the first_spatial_layer_to_encode,
which allows an application to skip encoding lower layer(s).

Change only affects the 1 pass CBR SVC.

Change-Id: I5d63ab713c3e250fdf42c637f38d5ec8f60cd1fb

In the decoder, map this to the output variable vpx_image_t.r_w/h.
This is intended as an improved version of VP9D_GET_DISPLAY_SIZE,
which doesn't work with parallel frame decoding. In the encoder,
map this to a codec control func (VP9E_SET_RENDER_SIZE) that takes
a w/h pair argument in a int[2] (identical to VP9D_GET_DISPLAY_SIZE).

Also add render_size to the encoder_param_get_to_decoder unit test.

See issue 1030.

Change-Id: I12124c13602d832bf4c44090db08c1009c94c7e8

Add SVC codec control to set the frame flags and buffer indices
for each spatial layer of the current (super)frame to be encoded.
This allows the application to set (and change on the fly) the
reference frame configuration for spatial layers.

Added an example layer pattern (spatial and temporal layers)
in vp9_spatial_svc_encoder for the bypass_mode using new control.

Change-Id: I05f941897cae13fb9275b939d11f93941cb73bee

In decoder, export (eventually) into vpx_image_t.range field. In
encoder, use oxcf->color_range to set it (same way as for
color_space).

See issue 1059.

Change-Id: Ieabbb2a785fa58cc4044bd54eee66f328f3906ce

From Change  Ibf0c30b72074b3f71918ab278ccccc02a95a70a0
There is still an issue relating to one animated test clip with repeat
patterns where this change effectively increase the default  maximum
arf interval by +1. This can be examined seperately.

Change-Id: Idd01d5480fc45202d8a059a0c3afc0997cc5bdd1

Adds two new vp9 parameters --min-gf-interval and --max-gf-interval
to enable testing based on frequency of alt-ref frames.

Also adds a unit-test to test enforcement of min-gf-interval.

For both these parameters the default value is 0, which indicates
they are picked by the encoder, based on resolution and framerate
considerations. If they are greater than zero, the specified
parameter is honored.

(Additional note by paulwilkins)
Note that there is a slight oddity in that key frames are also GFs and
considered part of  GF only group. However they are treated as not
being part of an arf group because for arf groups the previous GF is
assumed to be the terminal or overlay frame for the previous group.

(end note)

Change-Id: Ibf0c30b72074b3f71918ab278ccccc02a95a70a0

Remove the ABI check for the controls needed for SVC 1 pass CBR mode.
Bump up the ABI version.

Change-Id: I35b79ee010e14af83c6d1e801d574deaaa2fc7eb

-Make Rate control work for SVC 1 pass CBR mode.
-Added temporal layering mode.
-Fixed bug in non-rd variance partition.
-Modified/updated the sample encoders (vp9_spatial_svc_encoder, vpx_temporal_svc_encoder).
-Added datarate unittest(s) for 1 pass CBR SVC.

Change-Id: Ie94b1b68a56ea1267b5087c625e5df04def2ee48

This is useful when aq mode 3 (cyclic refresh) reactivates segments for refresh.

Change-Id: I3ad1d9410b899ede393d82bb8db14e2da4d84eca

Change-Id: I49a7017e8adc18ff03d748cb328814a8a3e1bcf6

this removes the CONFIG_* checks from public headers, but means
'--enable-experimental --enable-spatial-svc' builds will fail without a
local change to the ABI in vpx_encoder.h. this should be all right for
testing this experiment.

Change-Id: Ief55e7b9d1e8332cfce990275e04c29b30af0c4a

These were uncovered by the chromoting perftest.

Change-Id: Ia5a90fd1718ff757c1484decf3861295260e6722

The commit updates the comments in vp8cx.h to make it clear which
codec support each of codec control functions.

Change-Id: Ibf876e289d4325bbb61ce19311da60d384624c2f

Also updated comments and doc to make it clear that the control is
supported in VP9 only.

Change-Id: I6f120b65135fc1185695e9e3dc29fbe0d430824b

Reducing these values from 100 makes rate control tighter by
default.

Change-Id: I979409c93e6f19e128898f08ad581bf67eb0f824

BUG=https://code.google.com/p/webm/issues/detail?id=964

Change-Id: I70679d0f139b8e0962f7e19eb56b34060953e9b0

Most of the current decoders use tile-based multithreading. Also
most of the current decoders need frame_parallel_decoding_mode
turned on to enable multithreaded decoding. tile-columns is
limited by resolution, so setting to max (6) is fine.

BUG=https://code.google.com/p/webm/issues/detail?id=963

Change-Id: I6e7ac3485d96bf0c69e06706cbb326dd38be0020

Change-Id: Iefb928ad1174e274409facfb44f80265ff0f7683

When GF group adaptive maxQ is enabled this patch accounts
somewhat for accumulated error in the rate control.

This improves accuracy quite a bit on many clips especially
when there is  overshoot.

Examples when the overshoot and undershoot command line
parameters are set to 100:

Hall @ 1200 overshoot is reduced from 67-24%.
Akiyo @ 400 undershoot is reduced from 28%-15%.

Setting a lower value for undershoot or overshoot still
reduces the error further.

Impact on metrics is mixed with some gains in average psnr
but generally a little lower (e.g. 0.5%) on overall and ssim.

The GF group adaptation is still off by default in this patch.
Compared to with the head, enabling this mode now gives
big average psnr gains on the YT sets (e.g. YT_HD >11.2%),
a drop in overall PSNR (YT-HD 3.9%) and a smaller drop or
neutral for SSIM.

Change-Id: If4b32cd0740d3fb941317b374f9c2951954eee90

This resolves the encoder crashes on windows.

Change-Id: I159d79014cf9279751e403936ce1f84482ae82da

In frame parallel decode, libvpx decoder decodes several frames on all
cpus in parallel fashion. If not being flushed, it will only return frame
when all the cpus are busy. If getting flushed, it will return all the
frames in the decoder. Compare with current serial decode mode in which
libvpx decoder is idle between decode calls, libvpx decoder is busy
between decode calls.

Current frame parallel decode will only speed up the decoding for frame
parallel encoded videos. For non frame parallel encoded videos, frame
parallel decode is slower than serial decode due to lack of loopfilter
worker thread.

There are still some known issues that need to be addressed. For example:
decode frame parallel videos with segmentation enabled is not right sometimes.

* frame-parallel:
  Add error handling for frame parallel decode and unit test for that.
  Fix a bug in frame parallel decode and add a unit test for that.
  Add two test vectors to test frame parallel decode.
  Add key frame seeking to webmdec and webm_video_source.
  Implement frame parallel decode for VP9.
  Increase the thread test range to cover 5, 6, 7, 8 threads.
  Fix a bug in adding frame parallel unit test.
  Add VP9 frame-parallel unit test.
  Manually pick "Make the api behavior conform to api spec." from master branch.
  Move vp9_dec_build_inter_predictors_* to decoder folder.
  Add segmentation map array for current and last frame segmentation.
  Include the right header for VP9 worker thread.
  Move vp9_thread.* to common.
  ctrl_get_reference does not need user_priv.
  Seperate the frame buffers from VP9 encoder/decoder structure.
  Revert "Revert "Revert "Revert 3 patches from Hangyu to get Chrome to build:"""
 Conflicts:
       test/codec_factory.h
       test/decode_test_driver.cc
       test/decode_test_driver.h
       test/invalid_file_test.cc
       test/test-data.sha1
       test/test.mk
       test/test_vectors.cc
       vp8/vp8_dx_iface.c
       vp9/common/vp9_alloccommon.c
       vp9/common/vp9_entropymode.c
       vp9/common/vp9_loopfilter_thread.c
       vp9/common/vp9_loopfilter_thread.h
       vp9/common/vp9_mvref_common.c
       vp9/common/vp9_onyxc_int.h
       vp9/common/vp9_reconinter.c
       vp9/decoder/vp9_decodeframe.c
       vp9/decoder/vp9_decodeframe.h
       vp9/decoder/vp9_decodemv.c
       vp9/decoder/vp9_decoder.c
       vp9/decoder/vp9_decoder.h
       vp9/encoder/vp9_encoder.c
       vp9/encoder/vp9_pickmode.c
       vp9/encoder/vp9_rdopt.c
       vp9/vp9_cx_iface.c
       vp9/vp9_dx_iface.c

This reverts commit a18da976.

Change-Id: I361442ffec1586d036ea2e0ee97ce4f077585f02

Allow changing colorspace in the encoder and increasing frame size.

Change-Id: I8e7c3b891af29ce420a15beb4f6f9c250245b2bb

This reverts commit bde04ce5

Change-Id: I053dae04c761b04a36dc239558503905a14d2470

Change-Id: I3d324e2baa4de2d266c5f7ca7b635b62372e90a7

This commit adds encoder side control for vp9 to set color space info
in the output compressed bitstream.

It also amends the "vp9_encoder_params_get_to_decoder" test to verify
the correct color space information is passed from the encoder end to
decoder end.

Change-Id: Ibf5fba2edcb2a8dc37557f6fae5c7816efa52650

Change-Id: If64052cc6e404abc8a64a889f42930d14fad21d3

Replaced "color space" with "color format" in comments where color
sampling format is concerned, so to differentiate from the concept
defined in COLOR_SPACE.

Change-Id: I8c935034c166b24307a99352dab1686531276bb8

Change-Id: If2d0888d13ebe52bc7c3b16f16319408a86ab6de