xref: /aosp_15_r20/external/libaom/test/binary_codes_test.cc (revision 77c1e3ccc04c968bd2bc212e87364f250e820521)
1 /*
2  * Copyright (c) 2016, Alliance for Open Media. All rights reserved.
3  *
4  * This source code is subject to the terms of the BSD 2 Clause License and
5  * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6  * was not distributed with this source code in the LICENSE file, you can
7  * obtain it at www.aomedia.org/license/software. If the Alliance for Open
8  * Media Patent License 1.0 was not distributed with this source code in the
9  * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10  */
11 
12 #include <math.h>
13 #include <stdlib.h>
14 #include <string.h>
15 
16 #include "gtest/gtest.h"
17 
18 #include "config/aom_config.h"
19 
20 #include "test/acm_random.h"
21 #include "aom/aom_integer.h"
22 #include "aom_dsp/bitreader.h"
23 #include "aom_dsp/bitwriter.h"
24 #include "aom_dsp/binary_codes_reader.h"
25 #include "aom_dsp/binary_codes_writer.h"
26 
27 #define ACCT_STR __func__
28 
29 using libaom_test::ACMRandom;
30 
31 namespace {
32 
33 // Test for Finite subexponential code with reference
TEST(AV1,TestPrimitiveRefsubexpfin)34 TEST(AV1, TestPrimitiveRefsubexpfin) {
35   ACMRandom rnd(ACMRandom::DeterministicSeed());
36   const int kBufferSize = 65536;
37   aom_writer bw;
38   uint8_t bw_buffer[kBufferSize];
39   const uint16_t kRanges = 8;
40   const uint16_t kSubexpParams = 6;
41   const uint16_t kReferences = 8;
42   const uint16_t kValues = 16;
43   uint16_t enc_values[kRanges][kSubexpParams][kReferences][kValues][4];
44   const uint16_t range_vals[kRanges] = { 1, 13, 64, 120, 230, 420, 1100, 8000 };
45   aom_start_encode(&bw, bw_buffer);
46   for (int n = 0; n < kRanges; ++n) {
47     const uint16_t range = range_vals[n];
48     for (int k = 0; k < kSubexpParams; ++k) {
49       for (int r = 0; r < kReferences; ++r) {
50         const uint16_t ref = rnd(range);
51         for (int v = 0; v < kValues; ++v) {
52           const uint16_t value = rnd(range);
53           enc_values[n][k][r][v][0] = range;
54           enc_values[n][k][r][v][1] = k;
55           enc_values[n][k][r][v][2] = ref;
56           enc_values[n][k][r][v][3] = value;
57           aom_write_primitive_refsubexpfin(&bw, range, k, ref, value);
58         }
59       }
60     }
61   }
62   GTEST_ASSERT_GE(aom_stop_encode(&bw), 0);
63   aom_reader br;
64   aom_reader_init(&br, bw_buffer, bw.pos);
65   GTEST_ASSERT_GE(aom_reader_tell(&br), 0u);
66   GTEST_ASSERT_LE(aom_reader_tell(&br), 1u);
67   for (int n = 0; n < kRanges; ++n) {
68     for (int k = 0; k < kSubexpParams; ++k) {
69       for (int r = 0; r < kReferences; ++r) {
70         for (int v = 0; v < kValues; ++v) {
71           const uint16_t range = enc_values[n][k][r][v][0];
72           assert(k == enc_values[n][k][r][v][1]);
73           const uint16_t ref = enc_values[n][k][r][v][2];
74           const uint16_t value =
75               aom_read_primitive_refsubexpfin(&br, range, k, ref, ACCT_STR);
76           GTEST_ASSERT_EQ(value, enc_values[n][k][r][v][3]);
77         }
78       }
79     }
80   }
81 }
82 // TODO(debargha): Adds tests for other primitives
83 }  // namespace
84