It was a fairly small production optimization for VP9.
Change-Id: Ie93b474ea5b7e63384a7c0b3a56b135462d1471b
(cherry picked from aom/master commit df9bb76b13)
The code that generates the raw distribution is based on a MATLAB
program by Debargha Mukherjee, and the algorithm used to quantize the
distribution comes from the ANS Toolkit by Jarek Duda.
Change-Id: Ic273f7d9e43e3ecd999e9e7e04cde57e8559375a
(cherry picked from aom/master commit ef446026ae)
This brings it in line with the Daala CDFs and will make it easier to
share code.
Change-Id: Idfd2d2b33c3b9b2c4e72ce72fb3d8039013448b9
(cherry picked from aom/master commit af98507ca9)
* changes:
Unfork ANS decode_coefs
Remove ZERO_TOKEN from the ANS tokenset
Drop costing ANS tokens from derived probabilities
Unfork ANS pack_mb_tokens
Fix a bug in the C implementation of the ihalfright32
transform, in the case that its input and output buffers are the same.
This occurs when it is called by av1_iht32x16_512_add_c.
Change-Id: I61c652e2662178520c0639a2879ae128a9c7ec3f
- av1_fht32x32 AVX2 function level time reduction ~89% compared to C.
- av1_fht32x32_avx2() on DCT_DCT improves 42.62% over aom_fdct32x32_avx2()
But function replacement must go with the corresponding inverse txfm.
- No obvious user level time reduction due to 32x32 TX_TYPE selection.
- Zero high 128b YMM to avoid AVX-SSE transition penalties
(fix 16x16 case).
- Added 32x32 AVX2 unit tests to verify bitexact.
- AVX2 optimization summary:
On CPU i7-6700, based on 16x16/32x32 fwd txfm optimization results:
C to AVX2: function level time reduction, ~86-89%.
SSE2 to AVX2: function level time reduction, ~51%.
Change-Id: Idd0cd8bf066a61c7117140ef15ab6c1f8eb4b036
This can be re-added after aligning AOM's ANS with nextgenv2's ANS.
This partially reverts commit 3829cd2f2f.
Change-Id: I78afc587f1abfe33ffcd53b3262910cfae135534
This mimics what's currently done in aom/master. This can be re-added
after aligning AOM's ANS with nextgenv2's ANS.
Change-Id: I3ae62181dd4803694204a234c717a86a15ca8a40
This commit renames LIBVPX_TEST_DATA_PATH to LIBAOM_TEST_DATA_PATH,
with a work around for working with jenkins environmnet variables.
Change-Id: If664ce57e25ad2af8121d1b578bf64043f0baa2a
Before this change, gm parameters were being written to the
bitstream for all frames, but only read for inter only frames,
causing a bitstream error.
Change-Id: I63b8e2fdf6358e07cc00718de04cc399809bde37
Adds the functionality to return the rate cost due to
coefficients without doing full search of all modes.
This will be subsequently used in various experiments,
including in new_quant experiment to search quantization
profiles at the superblock level without repeating the
full mode/partition search.
Change-Id: I4aad3f3f0c8b8dfdea38f8f4f094a98283f47f08
Jean-Marc Valin
Alex Converse
Yi Luo
Steinar Midtskogen
Debargha Mukherjee
Hui Su
Jim Bankoski
Yaowu Xu
Sarah Parker
Urvang Joshi
Tristan Matthews