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Change-Id: Icc7a816491897107764e4c936288e9000e6319b8

Test for successful decoding when dropping enhancement layer frames.

Change-Id: Id3ae6e5676894f352680973e52352dc5d98bbf55

Change-Id: I62daa5938c93f0fce0c90ad3b67a2eb590120e38

Modify existing test to also check the case of dropping
(i.e., skip decoding) a consecutive list of frames.

Change-Id: Ia8c1195559f952e86e6697996931d3a920c05ae3

Change-Id: I7ff2b18e085f3fffaa7f25d40e4e50427b808f43

Currently, the best quality mode in VP9 is not very well developed,
and unnecessarily makes the encode too slow. Hence the command line
default is changed to "good" quality. Also, the number of passes
default is changed to 2 passes as well, since 1-pass encoding is
not very efficient in VP9.

Besides, a number of VP9 defaults are set to the currently
recommended settings. With these changes, vpxenc
run with --codec=vp9 --kf-max-dist=9999 --cpu-used=0 should
work about the same as our borg results.
Note when the --cpu-used=0 option is dropped there will be a slight
difference in the output, because of a difference in the cpu-used
value for the first pass. Specifically, the default when unspecified
is to use cpu_used=1 for the first pass and cpu_used=0 for the
second pass. But when specified, both passes will use the cpu-used
value specified.

Note that this also changes the default for VP8 as being "good"
but other options stay unchanged.

Change-Id: Ib23c1a05ae2f36ee076c0e34403efbda518c5066

Make the base test be:
!(fatal || abort_) removing some redundancy in the encode tests

Change-Id: I8ffaf33fcf9a3030b38ea3e8eb94704cdc2fc920

Disables the part of the error-resilient test that tests the
quality after dropping undroppable frames. It's not clear how
to set the threshold for this correctly at the moment.

Change-Id: I3ee4a0d475498f44711fdef05749f305e8d08591

This reverts commit b24735c6
since the adjusted threshold doesn't allow the existing tests
to pass. Will disable the failing test in a separate commit.

Change-Id: I26d41cf6175f300bbad493cecdc96e6b0dd6f2fe

Note that the pass fail criteria for this test seems a bit
arbitrary to me.

Change-Id: Idc695c39dd7542e851a7732b2810b45e0bdf91ae

The previous parameters did not pass with VP8.

Change-Id: I1505171fbd713d21029541828ebdbe4c7dea79b8

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

This commit starts to convert the tests to a system where the codec
to be used is provided by a factory object. Currently no tests are
instantiated for VP9 since they all fail for various reasons, but it
was verified that they're called and the correct codec is
instantiated.

Change-Id: Ia7506df2ca3a7651218ba3ca560634f08c9fbdeb

This unit test compares the difference in quality with
error resilience enabled and disabled. The test runs
for all of the one-pass encoding modes.

The test ensures that the effect of turning on error
resilience makes less than a 10% difference in PSNR.

Further cases should be added to do a more comprehensive
test.

Change-Id: I1fc747fc78c9459bc6c74494f4b38308dbed0c32