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instead of calculating every block.

Change-Id: Ib19ff2546be8441f8755ae971ba2910f29412029

(see I3a05cf1610679fed26e0b2eadd315a9ae91afdd6)

For the test clip used, the decoder performance improved by ~2%.
This is also an intermediate step towards adding back the
mode_info streams.

Change-Id: Idddc4a3f46e4180fbebddc156c4bbf177d5c2e0d

Change-Id: Ia2956f06f409b9b0ca8320ca4c1ea5680e938402

Refactor the loops in dec_build_inter_predictors to try and decrease
the number of instructions. Limited testing saw about 1% perf
increase on x86 and about 0.67 % perf increase on Arm.

Change-Id: I69cfe6335bb562fbaaebf43fb3f5c5a2a28882a2

Change-Id: Ia4f3feb20df0e89cc51b02def858e12e927312cc

Frame buffers are now allocated dynamically on-demand.

Entries in the reference frame map, cm->ref_frame_map,
may now be set to -1 (INVALID_IDX) to indicate that
there is not a valid reference buffer in that "slot".

All slots in the reference frame map are now initialized
to the empty state (-1) and each buffer is initialized
to have a reference count of 0.

Change-Id: Id1afe98de98db4ae8b2dfefed7889c3b28c68582

A frame may be waiting for an out of border pixel from another
frame. A frame's row progress variable is set to -1 when start being decoded
and another frame may be waiting for -2 row pixel from this frame.
In this case, vp9_frameworker_wait will return directly and skip the waiting
which leads to tsan error between threads.

Change-Id: Id16604915fb598b823e34393f696e3aa46fb6422

Loopfilters are init in vp9_decode_frame.

Change-Id: I4fbf6286b9b231451452e4ef3c19877a7b9a6768

This addresses the issue #960

Change-Id: Iddf45b4bd4f53cb0ddfd879e800a071cd843b915

Change-Id: I00621ff7165bbe86a18794b4a816976c9effaf78

This border extension is not needed with on-demond border extension.

Change-Id: I8501b37f5f756dc7e874cef4c1cfdbfa9a16112a

Moved vp9_accumulate_frame_counts to vp9_thread_common.c to
eliminate the duplicate code.

Change-Id: I9cf506d729603c8bf1494b4c86a3b7d47af1917a

Renames the files to allow more common thread code to
be moved to vp9/common.

Change-Id: I7386e64e221086e3cdc087e79812f993c423413b

This patch continues the work to remove frame_parallel_decoding_mode
requirement in VP9 multi-threaded tile decoder. In order to do that,
the frame counts associated to each thread need to be accumulated
together after the frame is decoded.

Change-Id: Idba1a756cedfed3c154aef52ed82c8da3bbf9e0c

The current multi-threaded tile decoder requires that the videoes
are encoded with frame_parallel_decoding_mode = 1. This requirement
is not necessary, and is better to be removed. This patch includes
the first part of the work.

Change-Id: Ic7695fb3cfe13f9022582c9f0edd2aa6e2e36d28

The merge did not merge the fix for issue #850.

Change-Id: I0dc1377dbfcb9497fb01a13d4f78ac65bff5eb33

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

This reverts commit bde04ce5

Change-Id: I053dae04c761b04a36dc239558503905a14d2470

1. Added row-based loopfilter in encoder;
2. Moved common multi-threaded loopfilter functions from decoder
   to common;
3. Merged multi-threaded loopfilter code, and made encoder/
   decoder call same function to reduce code duplication.

Encoder tests showed that 1% - 2% speedup was seen for good-quality
2-pass mode(at speed 3); 1% - 3% speedup using 2 threads and 4% - 6%
speedup using 4 threads were seen for real-time mode(at speed 7).

Change-Id: I8a4ac51c2ad9bab9fa7b864e90743931c53ec1c4

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

This commit added a field to vpx_image_t for indicating color space,
the field is also added to YUV_BUFFER_CONFIG. This allows the color
space information pass through the decoder from input stream to the
output buffer.

The commit also updated compare_img() function with added verification
of matching color space to ensure the color space information to be
correctly passed from encode to decoder in compressed vp9 streams.

Change-Id: I412776ec83defd8a09d76759aeb057b8fa690371

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

macroblockd are init again inside decode_tiles and decode_tiles_mt.

Change-Id: I1f42837864f095c319cdb24cec7d6aa6a3a4da50

this avoids longjmp'ing from another thread on error which will cause
undesired behavior

Change-Id: Ic9074ed8cc4243944bf2539d6e482f213f4e8c86

This reverts commit 91471d6a.

Fixes the compile issues if post_proc is enabled.

Change-Id: Ib40a15ce2c194f9b5adfa65a17ab01ddf60f5a59

Fails to compile. Bad calls to vp9_alloc_frame_buffer
and vp9_realloc_frame_buffer in postproc.c

This reverts commit 399823b6.

Change-Id: I29f0e173f8e185d3a303cfdb17813e1eccb51e3a

Add support for setting byte alignment on the Y, U, and V plane of the
reference buffers. The byte alignment must be a power of 2, from 32 to
1024. A value of 0 sets legacy alignment.

Change-Id: I7c1399622f7aa68e123646369216b32047dda73d

dqcoeff is set to be 0 on initialization. And set back to 0 after being
used everytime.

Change-Id: I32b8e149bba40a8d707849f737a8e49a691f319c

If decoding starts with intra-only frame, there is a possibility
of using uninitialized entropy context, what leads to undefined
behavior.

Change-Id: Icbb64b5b1bd1e5de2a4bfa2884e56bc0a20840af

Change-Id: I6e309e11f1641618d2424b7a2c0fe744b8974dec

No more checking of corrupted reference frame as we skip
decoding any non-intra frame in case of frame corrupted.

Change-Id: I77d41bbb02fc5f61972740e2d411441eb6a17073

This will save a lot of memory for decoder due to removing of prev_mi,
but prev_mi is still needed in encoder. So this will increase a little bit
memory for encoder.

Change-Id: I24b2f1a423ebffa55a9bd2fcee1077dac995b2ed

Change-Id: I8a9c9019242ec10fa499a78db322221bf96a0275

This patch allocated frame contexts outside VP9_COMMON. This allows
multiple threads to share the same copy of frame contexts, and
reduces the overhead. It also guarantees the correct update of
these contexts during bitstream packing. This patch doesn't change
encoding result.

Change-Id: Ic181a2460b891d1d587278a6d02d8057b9dbd353

Using 4 threads, frame parallel decode is ~3x faster than single thread
decode and around 30% faster than tile parallel decode for frame parallel
encoded video on both Android and desktop with 4 threads. Decode speed is
scalable to threads too which means decode could be even faster with more threads.

Change-Id: Ia0a549aaa3e83b5a17b31d8299aa496ea4f21e3e

Change-Id: I44d42a5098305a2d050ce8ff3c76baf7798c48af

one less dependency on pbi

Change-Id: I3f3a392416d3523f4aea6682c3965885baf85197

a step towards removing the pbi dependency

Change-Id: I10747b325e81c172f5e67031ea5159159fc26e91

move them from VP9Worker::data[12] to allow the structure to be reused a
bit more naturally by the multi-threaded loopfilter.

Change-Id: I31b49c9e93ca744fd7f6d6ed8696671188fb2c1d

Change-Id: I59a53b419adda3a609d50b2a82f5a4a54849752e