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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /third_party/aom/test/segment_binarization_sync.cc | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/aom/test/segment_binarization_sync.cc')
-rw-r--r-- | third_party/aom/test/segment_binarization_sync.cc | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/third_party/aom/test/segment_binarization_sync.cc b/third_party/aom/test/segment_binarization_sync.cc new file mode 100644 index 0000000000..bd8cf11410 --- /dev/null +++ b/third_party/aom/test/segment_binarization_sync.cc @@ -0,0 +1,61 @@ +/* + * Copyright (c) 2018, Alliance for Open Media. All rights reserved + * + * This source code is subject to the terms of the BSD 2 Clause License and + * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License + * was not distributed with this source code in the LICENSE file, you can + * obtain it at www.aomedia.org/license/software. If the Alliance for Open + * Media Patent License 1.0 was not distributed with this source code in the + * PATENTS file, you can obtain it at www.aomedia.org/license/patent. + */ + +#include "third_party/googletest/src/googletest/include/gtest/gtest.h" +#include "test/acm_random.h" + +using libaom_test::ACMRandom; + +extern "C" { +int av1_neg_interleave(int x, int ref, int max); +int av1_neg_deinterleave(int diff, int ref, int max); +} + +namespace { + +struct Segment { + int id; + int pred; + int last_id; +}; + +Segment GenerateSegment(int seed) { + static const int MAX_SEGMENTS = 8; + + ACMRandom rnd_(seed); + + Segment segment; + const int last_segid = rnd_.PseudoUniform(MAX_SEGMENTS); + segment.last_id = last_segid; + segment.pred = rnd_.PseudoUniform(MAX_SEGMENTS); + segment.id = rnd_.PseudoUniform(last_segid + 1); + + return segment; +} + +// Try to reveal a mismatch between segment binarization and debinarization +TEST(SegmentBinarizationSync, SearchForBinarizationMismatch) { + const int count_tests = 1000; + const int seed_init = 4321; + + for (int i = 0; i < count_tests; ++i) { + const Segment seg = GenerateSegment(seed_init + i); + + const int max_segid = seg.last_id + 1; + const int seg_diff = av1_neg_interleave(seg.id, seg.pred, max_segid); + const int decoded_segid = + av1_neg_deinterleave(seg_diff, seg.pred, max_segid); + + ASSERT_EQ(decoded_segid, seg.id); + } +} + +} // namespace |