GitLab

Earlier, the superres scale was in the form of:
N/16, where N ranged from 8 to 16.

We change this to the form:
8/D, where D ranges from 8 to 16.

This helps on the decoder side, by making it possible to work on 8x8
blocks at a time.

Change-Id: I6c72d4b3e8d1c830e61d4bb8d7f6337a100c3064

Change-Id: I3f30c35bcd1bc623ad0c34c4b954ff71b2fcfd00

Hard code av1_ext_tx_ind[] and av1_ext_tx_inv[].

Change-Id: Ife650d41be3f85d048f5585659ad57e03f54b39b

Change-Id: I0b6f56d2bf0482cfbf45525828d6daa6aea187e5

Change-Id: Id8cc58ca56ebeea6b7f499a5fac4fb96e01d797b

Change-Id: If6e84f390c6f92e8e013056c657758ba9e407a71

Before this patch, if CONFIG_DUAL_FILTER was true then an MB_MODE_INFO
stored its filter choices as an array of four numbers, each of which
was between 0 and 10. It also seems that elements 2 and 3 of the array
were always the same as elements 0 and 1 when used.

This patch defines a new type(def) called InterpFilters together with
constructor and extractor functions. When CONFIG_DUAL_FILTER is zero,
InterpFilters is a synonym for InterpFilter and the constructor and
extractor functions should compile away to nothing. When it is
nonzero, InterpFilters is a uint32_t which stores the x filter in the
high part and the y filter in the low part (this looks strange, but
matches the old numbering).

Making this change allows us to get rid of lots of special case code
that was dependent on CONFIG_DUAL_FILTER. The uniform
extract/make/broadcast interface also actually shortens code in
general.

Change-Id: I6b24a61bac3e4b220d8d46d0b27cfe865dcfba81

When experiment LOOPFILTER_LEVEL is on, there're four base filter levels
for each frame. This patch enables one to use one delta or four deltas
to update corresponding filter levels for each superblock in
EXT_DELTA_Q.

1 bit per frame is sent through bitstream to select one or four deltas.
Now, we hard code to use one delta.

Change-Id: I9c61a035064fa81878b0575ad21664e2b22a6a45

The _ind and _inv mapping tables are not necessary. The CDF tables are
updated with new values converted from the old tables. Performance
impact is small and neutral.

Change-Id: I65845ab3c80f88794abd9ab9e61494af56099c7c

Patch https://aomedia-review.googlesource.com/c/21783
changed things so that error-resilient frames use the default
global motion parameters as a reference, rather than taking
the reference from the previous frame.

This was implemented by clearing out cm->prev_frame->global_motion
when we have an error-resilient frame. Unfortunately, this causes
an issue: if we have an error resilient frame which isn't stored
into any reference slots, followed by a non-error-resilient frame,
then both frames refer to the same prev_frame. The second frame
then delta-codes against cm->prev_frame->global_motion, but
this was reset to the default values by the intervening
error-resilient frame!

In order to allow the above case to work as intended, expand the
default warp parameter set to a full WarpedMotionParams struct,
and use that as the reference for error-resilient frames.

This also allows us to remove set_default_warp_params, as we
can now just copy directly from default_warp_params.

Change-Id: I9645615db2700c1d3810e6e42f4f1da626fcd5e3

These two flags serve essentially the same purpose, so we can
simplify down to just having one flag. Since the
frame_id_numbers_present_flag is older and listed in the
reference-buffer design doc, this is the one we'll keep.

Note that, previously, frame_id_numbers_present_flag was only
sent when CONFIG_OBU was enabled - otherwise it was always set
to 1. On the other hand, use_reference_buffer was always signalled
so that allowed us to disable frame ids even without CONFIG_OBU.

In order to keep the ability to disable frame IDs without
CONFIG_OBU, we send a "real" sequence header (ie, with the same
data as in CONFIG_OBU) in-line within the uncompressed header.
This is sent every keyframe and every intra-only frame, just
as the use_reference_buffer flag was before this patch.

BUG=aomedia:853

Change-Id: I4bb6c7a222aeddfb6d3737a39d10782d32ee2eee

Before LOOPFILTER_LEVEL, there's one filter level,
now we have four filter levels for y plane vertical,
y plane horizontal, u plane and v plane.

This patch enables experiment LOOPFILTER_LEVEL to support per
superblock loop filter level update.

Change-Id: Ib11a1564471eb3076c26e73e5cdf7b5a3045ef97

This experiment has been adopted, we can simplify the code
by dropping the associated preprocessor conditionals.

Change-Id: Ic077963f72e8cc2ae9872b58c8a0241988384110

BUG=aomedia:851

Change-Id: Ib188f4b640a58c47147cda977a589e527f765a54

This hides behind --enable-ext_partition_types_ab. When that flag is
set, the mixed partitions change from

   +-+-+---+          +-+-+---+
   |   |   |          | | |   |
   |---+   |    to    | | |   |
   |   |   |          | | |   |
   +-+-+---+          +-+-+---+

(that's PARTITION_VERT_A; other partitions change similarly).

Since 128x32 and 32x128 block support hasn't yet been merged, this
patch also temporarily disables these partitions for 128x128 blocks.

Change-Id: Ic479c0fc129f590b8ad56d72dc98ba79ae1bd1cf

Move functions related to frame index in natural order setup into
a root experiment.

Change-Id: Iebc71514b951dbb658cf0e1c3d42bb2b180d830f

Change-Id: Ieb28f40d85e4db4af33648c32c406dd2931ceb89

Change-Id: I52f204000f5fdaf1c6fff63949d72e858ceea462

Allows saving bits when reference buffer is not to be used in
cases where error resilience is unimportant.

Change-Id: I2ef002a7cce96a158e1e58c2b00f0a6846049fff

With ext-partition and tx64x64 enabled, the encoder could choose
TX_64X64 to encode the transform for a subsampled plane of a
BLOCK_128X128 block. This broke an assumption in the nested loop in
write_tokens_b and also caused bug 827 (with a rather cryptic
failure).

This patch changes get_vartx_max_txsize to ensure that the encoder and
decoder don't think they can use TX_64X64 in this situation. It also
adds a couple of assertions to the loop mentioned above so that if
something comes unstuck it'll be much more obvious what went wrong.

BUG=aomedia:827

Change-Id: Ie093f2f20f6242949d68e950c8f95b100867ee17

Although they are called "sync codes", nothing is synchronized
using them.

Change-Id: I2dbd67daf9f4822438323212bb96cac489c38c5d

CDFs are used for coding and costs, so there is no need to
base the CDF on the obsolete tree and remap filter indices.

No change to common test conditions BDR.

Change-Id: I441dd21b127bc07ba33eef8ddcfd147eef21d0d4

This patch is designed to complete the CONFIG_MAX_TILE experiment.
It adds the following features:
- Explicit tiles of same width can be signalled with command line --tile_width
- Explicit tiles of same hieght can be signalled with command line --tile_height
- max_tile now works with the depenedent horizontal tiles experiment
- additional checking added to ensure maximum number of rows/columns <= 64
- one fix to the tile group code for when the number of tiles is not a power of two

Change-Id: I749a68fdb3dcdd8d1ced2b3558f3817e4b832c06

Set filter step = 2, such that 3 bit can represent [-14, +14] filter
level difference.

Tune threshold for reusing filter level between previous and current
superblock.

Change-Id: I6f26377591f3e93f7c068e4aa4279ae9bc2c9522

PVQ has been broken again since the experiment flag for palette is removed
in commit c6300aa1.

As a fix, if PVQ is enabled then disable both of --tune-content=screen and
automatic detection of screen and use of palette coding tool.

Change-Id: Iea6bb042b4402163805c44dabfb3f4c05dfd4e23

rem_bits-1 not rem_bits should be transmitted so that
2 cannot be coded in two ways.

 BUG=aomedia:811

Change-Id: Iaa0203214bbe6fc6775e05fe4b6e976d568f54b3

Signal one bit to indicate whether current superblock reuses filter
level of previous superblock.
Try filtering and compute sse using previous filter level and search
the best possible filter level. If their diff is less than predefined
threshold, current superblock reuses previous level. Otherwise,
signal the best filter level.

Change-Id: Ibf125860883b774ef2464b62bb8b799b48258c64

The compressed header is now used only when the refresh
type is set as forward, i.e. in error resilience and
frame parallel modes. As long as backward updates are
used the header is disabled thereby saving bits.

Change-Id: Iee9f66ffbd30ef3552ea41b75e4b51537cd9ff97

Change-Id: I3d6a440b13473b0d1e8b18c6629c7e8e3fb446ae

This patch moves the sb_size to the keyframe header from all frame
headers as discussed in the AOM Codec WG meeting.

Change-Id: Ia0190e57b36b98e51ab61ad4ff14f24f9c294877

For the first superblock, signal a filter level (6 bit).
For other superblocks, signal the delta (3 bit) and sign (1 bit).
To guarantee the delta can be represented by 3 bits, the search
range of current superblock filter level is capped as
curr_lvl = prev_lvl +- ((1 << 3) - 1)

Change-Id: Ibbe2941aa96ec1220ed2adb7edf3d29cb032f0ec

It's not being used anymore, replaced by the CDF model.
The counters are moved under the entropy-stats experiment, so that they
can be used to tune the default CDF values.

Change-Id: I50cb170c4c8699cf7317fd77853b3fedf2342d3e

Use common structure for inter and intra tx type information when
possible.

Change-Id: I1fd3bc86033871ffbcc2b496a31dca00b7d64b31

Search and pick filter level for each superblock after the entire
frame has been encoded. And then apply loop filtering using
selected filter levels.

Now it can't work with LOOPFILTER_LEVEL. Y, U, V planes share the
same filter level.

Per superblock, filter levels are signaled via bitstream.

Future work: move selecting filter level into each superblock
rather than wait for the whole frame encoded.

Change-Id: I46cb994ec4866abb0456146f7c3cae8813c1d52e

Change-Id: I78bb38e3d61d74442278bd5ed1c4f695b7c8e24a

This adds the tool CONFIG_MAX_TILE
Uniform tiles are implemented using power of two number of rows or columns.
Maximum number of rows or columns is 64
Explicit tiles will follow in a later commit once the command line API is updated for this

Change-Id: Ia8d22e7f4aa779448211496c644937afdf037228

Change-Id: Ic3c93a5d2e427ce1ed578389196a265245063821

Change-Id: Ic29bac4cd00a009e4a5a607ecc5596fa53bb1c1f

Improves keyframe coding by 0.1% on the screen_content testset.

Change-Id: I5793a67eaae21010ef200038af99ebb9029fc770

Change-Id: I9b92caa9d65a3b062762c270c89018c8e08eba0f