76 строки
2.5 KiB
C++
76 строки
2.5 KiB
C++
/*
|
|
* 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/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);
|
|
}
|
|
aom_stop_encode(&bw);
|
|
aom_reader br;
|
|
aom_reader_init(&br, bw_buffer, kBufferSize, NULL, NULL);
|
|
|
|
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, kBufferSize, NULL, NULL);
|
|
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"));
|
|
}
|