77bba8d30a
PVQ replaces the scalar quantizer and coefficient coding with a new
design originally developed in Daala. It currently depends on the
Daala entropy coder although it could be adapted to work with another
entropy coder if needed:
./configure --enable-experimental --enable-daala_ec --enable-pvq
The version of PVQ in this commit is adapted from the following
revision of Daala:
fb51c1ade6
More information about PVQ:
- https://people.xiph.org/~jm/daala/pvq_demo/
- https://jmvalin.ca/papers/spie_pvq.pdf
The following files are copied as-is from Daala with minimal
adaptations, therefore we disable clang-format on those files
to make it easier to synchronize the AV1 and Daala codebases in the future:
av1/common/generic_code.c
av1/common/generic_code.h
av1/common/laplace_tables.c
av1/common/partition.c
av1/common/partition.h
av1/common/pvq.c
av1/common/pvq.h
av1/common/state.c
av1/common/state.h
av1/common/zigzag.h
av1/common/zigzag16.c
av1/common/zigzag32.c
av1/common/zigzag4.c
av1/common/zigzag64.c
av1/common/zigzag8.c
av1/decoder/decint.h
av1/decoder/generic_decoder.c
av1/decoder/laplace_decoder.c
av1/decoder/pvq_decoder.c
av1/decoder/pvq_decoder.h
av1/encoder/daala_compat_enc.c
av1/encoder/encint.h
av1/encoder/generic_encoder.c
av1/encoder/laplace_encoder.c
av1/encoder/pvq_encoder.c
av1/encoder/pvq_encoder.h
Known issues:
- Lossless mode is not supported, '--lossless=1' will give the same result as
'--end-usage=q --cq-level=1'.
- High bit depth is not supported by PVQ.
Change-Id: I1ae0d6517b87f4c1ccea944b2e12dc906979f25e
42 lines
1.3 KiB
C++
42 lines
1.3 KiB
C++
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#include <stdlib.h>
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#include "third_party/googletest/src/include/gtest/gtest.h"
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#include "test/acm_random.h"
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#include "av1/common/odintrin.h"
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using libaom_test::ACMRandom;
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TEST(Daala, TestDIVUuptoMAX) {
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for (int d = 1; d <= OD_DIVU_DMAX; d++) {
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for (uint32_t x = 1; x <= 1000000; x++) {
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GTEST_ASSERT_EQ(x / d, OD_DIVU_SMALL(x, d))
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<< "x=" << x << " d=" << d << " x/d=" << (x / d)
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<< " != " << OD_DIVU_SMALL(x, d);
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}
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}
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}
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TEST(Daala, TestDIVUrandI31) {
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ACMRandom rnd(ACMRandom::DeterministicSeed());
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for (int d = 1; d < OD_DIVU_DMAX; d++) {
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for (int i = 0; i < 1000000; i++) {
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uint32_t x = rnd.Rand31();
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GTEST_ASSERT_EQ(x / d, OD_DIVU_SMALL(x, d))
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<< "x=" << x << " d=" << d << " x/d=" << (x / d)
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<< " != " << OD_DIVU_SMALL(x, d);
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}
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}
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}
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