Changing webmdec to use libwebm for WebM file parsing.

Change-Id: I2a57a7b44dbed05eaa04409e1e75e6fc03b30fbc

There are a few tests which read/write directly to/from WebM files. They should
be disabled when --disable-webm-io is passed.

Change-Id: Ibac4732e27c66da33082151ba6e6993eaa9a1efd

Change-Id: I88f86c8ff9af34e0b6531028b691921b54c2fc48

Remove duplicate WebM parsing code in test/webm_video_source.h and linking it
against webmdec.c which does the exact same thing.

Change-Id: Ib7152eecde890fca58be42028cab18c9cb54221c

Change-Id: I08fe184a04e5435aeac92f1d7cc9733ca52c2783

There was a bug with the decoder that if you started the decoder
with more threads than the first frame had tile columns. Afterwards
tried to decode a frame with more tile columns than the first frame,
the decoder would hang. E.g. run vpxdec --threads=4. The first frame
had two tile columns, then the next key frame had 4 tile columns, the
decoder would hang. If you started with 4 tiles and switched to 2
tiles the decoder would be fine. The issue is that the worker the thread
loop is using is stale.

I added a test vector "vp90-2-14-resize-848x480-1280x720.webm" that
exhibited the bug.

Change-Id: I7bdd47241a52ac0fe1c693a609bc779257e94229

For very large size video image, the scaling calculation may need use
value beyond the range of int. This commit upgrade the value to 64bit
to make sure the calculation do not wrap around INT_MAX.

The change corrected the decoder behavior.

The bug affects only very large resolution video because the scaling
calculation was sufficient for image size smaller than 2^13.

This resolves issue:
https://code.google.com/p/webm/issues/detail?id=750

Change-Id: I2d2ed303ca6482f31f819f3c07d6d3e98ef3adc5

Change-Id: Ib09eedc17ea0ea2eec75d78112e4786d98f382aa

Activated using aq_mode=3.

Change-Id: Ied628b9e7bd0e88b0c75790276bca75b19eb5c07

Change-Id: I641a75dd75cd3c53a20eb4dbceb7a9b70a5a0e4d

Change-Id: I6e7d6fa557be2af49722d3726991ae7c40f90f4e

- move vp9-only vp9_subtract_test.cc to vp9 block
- move sad_test.cc to a common location

Change-Id: Ie033bbf2c31e7faaae73f2050d657619bfaa3287

not just CONFIG_VP8_ENCODER; there's now VP9 code in the same file

Change-Id: I73d8b9141af1374b37480fb0495e17a7952eb4f9

Change-Id: Idf58109195a88dec66c5e1ea6a51c61e6c659ff1

Change-Id: I70240e50927b4379603628f6349bf615f756b5a1

Change-Id: I39286df9fc76e3451f14ce2652d671e11b0c37bc

Added support for external frame buffers to libvpx's VP9 decoder.
If the external frame buffer functions are set then libvpx will
call the get function whenever it needs a new frame buffer to
decode a frame into. And it will call the release function
whenever there are no more references to that buffer.

Change-Id: Id2934d005f606af6e052fb6db0d5b7c02f567522

When showing a previously decoded frame, i.e. when
show_existing_frame=1, the update of the
last_show_frame flag must be disabled.

This is to ensure that the last_show_frame flag
reflects the state of the flag for the immediately
previously decoded frame rather then the value that
was forced to ensure that a previously decoded frame
would be displayed.

This patch also adds a test vector to verify that the
display_existing_frame flag works as expected. Code
for generating the test vector can be found in this
patch:
https://gerrit.chromium.org/gerrit/#/c/68581/

(Bug originally reported by Alexander Voronov
<ru.xalba@gmail.com>).

Change-Id: I731d288fba02088959f7fcc87707137fffc6acf5

A future CL will add external frame buffers
differently.

Squash commit of four revert commits:
Revert "Increase required number of external frame buffers"

This reverts commit 9e41d569.

Revert "Add external constants."

This reverts commit bbf53047.

Revert "Add frame buffer lru cache."

This reverts commit fbada948.

Conflicts:
	vpxdec.c

Change-Id: I76fe42419923a6ea6c75d9997cbbf941d73d3005

Revert "Add support to pass in external frame buffers."

This reverts commit 10f89169.

Conflicts:
	test/external_frame_buffer_test.cc
	vp9/common/vp9_alloccommon.c
	vp9/common/vp9_reconinter.c
	vp9/decoder/vp9_decodeframe.c
	vp9/encoder/vp9_onyx_if.c
	vp9/vp9_dx_iface.c
	vpx/vpx_decoder.h
	vpx/vpx_external_frame_buffer.h
	vpx_scale/generic/yv12config.c
	vpxdec.c

Change-Id: I7434cf590f1c852b38569980e4247fad0d939c2e

Change-Id: I2dc7b3265d0a87d7a26c95b48e360c7c68cc7355

Change-Id: Ida3128e7e8a2ed333ac0b4ee92c23cb7dc1b7843

From frame 2, the lpf deltas are all cleared for for even frames, and
a set of values are set and used for odd frames. The intention is to
exercise decoding code around lpf delta/update decoding.

Change-Id: Ic9ff1bc2c2a023f4805852f8573398f2ec2249d7

To make sure the results they produce to match their full versions

Change-Id: Ib00b036fecf43fe20af716acfc580af18ef87757

The added vector was encoded with aq mode on, with the intent to
exercise the decode code around segment feature.

Change-Id: Iedcb7261e87d3e11b25ecf031d3a69385271148e

Frank Galligan authored 11 years ago and James Zern committed 11 years ago

Add an option for libvpx to return the least recently used
frame buffer.

Change-Id: I886a96ffb94984f1c42de53086e0131922df3260

VP9 decoder can now use frame buffers passed in by the application.

Change-Id: I599527ec85c577f3f5552831d79a693884fafb73

Change-Id: I36f9033492f12fda7f9ce0e7a97a009aab9aab57

3840x2160

vp90-2-08-tile_1x8_frame_parallel.webm
vp90-2-08-tile_1x8.webm

vpxenc crowd_run_2160p50.y4m \
  --codec=vp9 -p 2 \
  --frame-parallel=${fpm} \
  --tile-columns=${tc} \
  --limit=10 \
  --auto-alt-ref=1 \
  --lag-in-frames=5 \
  --target-bitrate=2500

Change-Id: I6dc19b4fca483d03ef9a897a843bf9037d095c8e

The test vector exercises the loopfilter behavior at frame boundary.

blue_sky_1080p25.y4m --good --cpu-used=2 --threads=0 --profile=0
--lag-in-frames=25 --limit=300 --min-q=0 --max-q=63 --cq-level=20
--end-usage=0 --auto-alt-ref=1 -p 2 --kf-max-dist=9999 --kf-min-dist=0
--drop-frame=0 --static-thresh=0 --bias-pct=50 --minsection-pct=0
--maxsection-pct=2000 --arnr-maxframes=7 --arnr-strength=5
--arnr-type=3 --sharpness=0 --undershoot-pct=100 --target-bitrate=6000

Change-Id: Ibd0807395d2fe87f24f81f990369678df3de7c23

Also added a test vector for this issue.

Change-Id: I8a8654f9d33b27afd53c295f1ea44d198550d067

Added the test vector provided by Attila, which caught the bug in
Issue 661 "Decoder produces mismatched outputs with ssse3 enabled
and disabled"

vp90-hantro-stream-001.ivf
size: 320x180; 20 frames

Change-Id: Ic0d2b57ac7596ecb938dd55abc8c706fc2dd6d8f

Change-Id: Id578a5fe2039631cefd82dc2ef98cc62683194c3

1920x1080

vp90-2-08-tile-4x4.webm
vp90-2-08-tile-4x4.webm.md5

vpxenc blue_sky_1080p25 --frame-parallel=0 \
--tile-columns=2 --tile-rows=2 \
--lossless=0 --error-resilient=0 \
--min-q=0 --max-q=30 --kf-min-dist=0 --kf-max-dist=9999 \
--cpu-used=0 --codec=vp9 -p 2 --good --fps=25/1 --limit=5

vp90-2-08-tile-4x1.webm
vp90-2-08-tile-4x1.webm.md5

vpxenc blue_sky_1080p25 --frame-parallel=0 \
--tile-columns=0 --tile-rows=2 \
--lossless=0 --error-resilient=0 \
--min-q=0 --max-q=30 --kf-min-dist=0 --kf-max-dist=9999 \
--cpu-used=0 --codec=vp9 -p 2 --good --fps=25/1 --limit=5

Change-Id: I77d0ccf9b721ae5cfa72781fe0d3c534ea43b756

SVC multiple layer per frame encoding is invoked with vpx_svc_init and
vpx_svc_encode. These interfaces are designed to be invoked from ffmpeg.
Additional improvements:
- make dummy frame handling a bit more explicit
- fixed bug with single layer encodes
- track individual frame sizes and psnrs instead of averages
- parameterized quantizer, 16th scalefactors, more logging,
- enabled single layer encodes to generate baseline
- include new mode for 3 layer I frame with 5 total layers

Change-Id: I46cfa600d102e208c6af8acd6132e0cc25cda8d4

1920x1080

vp90-2-08-tile_1x2_frame_parallel.webm
vp90-2-08-tile_1x2.webm
vp90-2-08-tile_1x4_frame_parallel.webm
vp90-2-08-tile_1x4.webm

vpxenc blue_sky_1080p25.y4m \
  --codec=vp9 -p 2 \
  --frame-parallel=${fpm} \
  --tile-columns=${tc} \
  --limit=10 \
  --auto-alt-ref=1 \
  --lag-in-frames=5 \
  --target-bitrate=2500

Change-Id: Id9c94b722cc553a6865d443a94e8482c78b038bb

This reverts commit a82001b1, reversing
changes made to f6d870f7.

This commit breaks windows builds and needs some work to fix those and
some additional comments.

Change-Id: Ic0b0228e36704b127e5e399ce59db26182cfffe7

These changes were originally made in the Stratacaster team-review repository

commit e114bffcd82ad74c3696ec58e13c0ac895d6c82d
Author: Charles 'Buck' Krasic <ckrasic@google.com>
Date:   Mon Oct 14 16:52:13 2013 -0700

    Make dummy frame handling a bit more explicit, fixing bug
    with single layer encodes.

Squashed commit of the following:

commit 1ebbfd976c0fadb02bf1ea562a2d0e3f0206daad
Merge: ac468dde 54e88b7
Author: Ivan Maltz <ivanmaltz@google.com>
Date:   Fri Oct 11 17:29:58 2013 -0700

    Move SVC code from vp9_spatial_scalable_encoder to libvpx module accessible from ffmpeg

commit 54e88b78b160becc9569fc3c6cb6b0a8c95dc357
Author: Ivan Maltz <ivanmaltz@google.com>
Date:   Tue Oct 8 09:08:40 2013 -0700

    common svc encoding code for sample app and ffmpeg

    added svc_encodeframe.c, svc_context.h, svc_test.cc

    vp9_spatial_scalable_encoder uses vpx_svc_encode

commit 5616ec8e2e3d3e8d277333d8a9242f6c70151162
Merge: 4528014 e29137df
Author: Ivan Maltz <ivanmaltz@google.com>
Date:   Tue Oct 8 08:47:58 2013 -0700

    Merge branch 'master' into stratacaster

commit 45280148450b1f3d61e390df8aadedf85cd5bce1
Merge: bb2b675 1ab60f7b
Author: Sujeevan Rajayogam <sujee@google.com>
Date:   Fri Oct 4 10:22:31 2013 -0700

    Merge branch 'master' into stratacaster

commit bb2b675e595dc9bfc8551e963edf56800c3aea61
Author: Sujeevan Rajayogam <sujee@google.com>
Date:   Wed Oct 2 12:37:26 2013 -0700

    Track individual frame sizes and psnrs instead of averages.

commit c6d303b714795c81e7ceb4173967115c9f8ff5b7
Merge: fa87df9 35830879
Author: Sujeevan Rajayogam <sujee@google.com>
Date:   Fri Sep 27 10:05:35 2013 -0700

    Merge branch 'master' into stratacaster

commit fa87df94fba923d9f7aeb8ae20c6e15f777e00b5
Merge: bf22d71 3c465af2
Author: Sujeevan Rajayogam <sujee@google.com>
Date:   Thu Sep 26 16:10:31 2013 -0700

    Merge branch 'master' into stratacaster

commit bf22d7144895a82e0c348ac177c8a261b9e2b88e
Author: Sujeevan Rajayogam <sujee@google.com>
Date:   Thu Sep 26 11:10:34 2013 -0700

    Parameterized quantizer, 16th scalefactors, more logging, enabled single layer encodes to generate baseline.

commit ceffd7e6025b765f9886b5ea0f324248aa37e327
Author: Sujeevan Rajayogam <sujee@google.com>
Date:   Thu Sep 19 10:04:49 2013 -0700

    - Include new mode for 3 layer I frame with 5 total layers.
    - Refactor svc api.

Change-Id: Ie4d775e21e006fa597d884c59488dc999478e9b5

vp90-2-07-frame_parallel.webm:
vpxenc stefan_sif.y4m \
  --codec=vp9 -p 2 \
  --frame-parallel=1 \
  --limit=10 \
  --auto-alt-ref=1 \
  --lag-in-frames=5

Change-Id: I7381a69aaaec238b309169a51b34cb6bf29a9c50

Adding appropriate test vector vp90-2-06-bilinear.webm.

Change-Id: Ia3bbf57318e0cc61a1b724fe751e3f9c7e11b337

Modified the resize unit test so that it optionally
writes the encoded bitstream to file. The macro
WRITE_COMPRESSED_STREAM should be set to 1 to enable
output of the test bitstream; it is set to 0 by default.

Change-Id: I7d436b1942f935da97db6d84574a98d379f57fb1