Files
vpx/test/divu_small_test.cc
Yaowu Xu 253c001f8f Port dering experiment from aom
Mannually cherry-picked:
1579133 Use OD_DIVU for small divisions in temporal_filter.
0312229 Replace divides by small values with multiplies.
9c48eec Removing divisions from od_dir_find8()
0950ed8 Merge "Port active map / cyclic refresh fixes to vp10."
efefdad Port active map / cyclic refresh fixes to vp10.
1eaf748 Port switch to 9-bit rate cost to aom.
0b1606e Only build deringing code when --enable-dering.
e2511e1 Deringing cleanup: don't hardcode the number of levels
8fe5c5d Rename dering_in to od_dering_in to sync with Daala
4eb1380 Makes second filters for 45-degree directions horizontal
7f4c3f5 Removes the superblock variance contribution to the threshold
3dc56f9 Simplifying arithmetic by using multiply+shift
cf2aaba Return 0 explicitly for OD_ILOG(0).
49ca22a Use the Daala implementation of OD_ILOG().
8518724 Fix compiler warning in od_dering.c.
485d6a6 Prevent multiple inclusion of odintrin.h.
51b7a99 Adds the Daala deringing filter as experimental

Note that a few of the changes were already in libvpx codebse.

Change-Id: I1c32ee7694e5ad22c98b06ff97737cd792cd88ae
2016-08-16 13:47:18 +00:00

53 lines
2.1 KiB
C++

/*Daala video codec
Copyright (c) 2013 Daala project contributors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS”
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.*/
#include <stdlib.h>
#include "third_party/googletest/src/include/gtest/gtest.h"
#include "test/acm_random.h"
#include "vp10/common/odintrin.h"
using libvpx_test::ACMRandom;
TEST(Daala, TestDIVUuptoMAX) {
for (int d = 1; d <= OD_DIVU_DMAX; d++) {
for (uint32_t x = 1; x <= 1000000; x++) {
GTEST_ASSERT_EQ(x/d, OD_DIVU_SMALL(x, d)) << "x=" << x << " d=" << d <<
" x/d=" << (x/d) << " != " << OD_DIVU_SMALL(x, d);
}
}
}
TEST(Daala, TestDIVUrandI31) {
ACMRandom rnd(ACMRandom::DeterministicSeed());
for (int d = 1; d < OD_DIVU_DMAX; d++) {
for (int i = 0; i < 1000000; i++) {
uint32_t x = rnd.Rand31();
GTEST_ASSERT_EQ(x/d, OD_DIVU_SMALL(x, d)) << "x=" << x << " d=" << d <<
" x/d=" << (x/d) << " != " << OD_DIVU_SMALL(x, d);
}
}
}