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Diffstat (limited to 'third_party/aom/test/accounting_test.cc')
-rw-r--r-- | third_party/aom/test/accounting_test.cc | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/third_party/aom/test/accounting_test.cc b/third_party/aom/test/accounting_test.cc new file mode 100644 index 0000000000..033499d13b --- /dev/null +++ b/third_party/aom/test/accounting_test.cc @@ -0,0 +1,75 @@ +/* + * Copyright (c) 2016, 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 <math.h> +#include <stdlib.h> +#include <string.h> + +#include "third_party/googletest/src/googletest/include/gtest/gtest.h" + +#include "test/acm_random.h" +#include "aom/aom_integer.h" +#include "aom_dsp/bitreader.h" +#include "aom_dsp/bitwriter.h" + +using libaom_test::ACMRandom; + +TEST(AV1, TestAccounting) { + const int kBufferSize = 10000; + const int kSymbols = 1024; + aom_writer bw; + uint8_t bw_buffer[kBufferSize]; + aom_start_encode(&bw, bw_buffer); + for (int i = 0; i < kSymbols; i++) { + aom_write(&bw, 0, 32); + aom_write(&bw, 0, 32); + aom_write(&bw, 0, 32); + } + GTEST_ASSERT_GE(aom_stop_encode(&bw), 0); + aom_reader br; + aom_reader_init(&br, bw_buffer, bw.pos); + + Accounting accounting; + aom_accounting_init(&accounting); + br.accounting = &accounting; + for (int i = 0; i < kSymbols; i++) { + aom_read(&br, 32, "A"); + } + // Consecutive symbols that are the same are coalesced. + GTEST_ASSERT_EQ(accounting.syms.num_syms, 1); + GTEST_ASSERT_EQ(accounting.syms.syms[0].samples, (unsigned int)kSymbols); + + aom_accounting_reset(&accounting); + GTEST_ASSERT_EQ(accounting.syms.num_syms, 0); + + // Should record 2 * kSymbols accounting symbols. + aom_reader_init(&br, bw_buffer, bw.pos); + br.accounting = &accounting; + for (int i = 0; i < kSymbols; i++) { + aom_read(&br, 32, "A"); + aom_read(&br, 32, "B"); + aom_read(&br, 32, "B"); + } + GTEST_ASSERT_EQ(accounting.syms.num_syms, kSymbols * 2); + uint32_t tell_frac = aom_reader_tell_frac(&br); + for (int i = 0; i < accounting.syms.num_syms; i++) { + tell_frac -= accounting.syms.syms[i].bits; + } + GTEST_ASSERT_EQ(tell_frac, 0U); + + GTEST_ASSERT_EQ(aom_accounting_dictionary_lookup(&accounting, "A"), + aom_accounting_dictionary_lookup(&accounting, "A")); + + // Check for collisions. The current aom_accounting_hash function returns + // the same hash code for AB and BA. + GTEST_ASSERT_NE(aom_accounting_dictionary_lookup(&accounting, "AB"), + aom_accounting_dictionary_lookup(&accounting, "BA")); +} |