1 /*
2  * Copyright (c) 2021-2021 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #include "gtest/gtest.h"
17 #include "plugin/common/any.h"
18 #define private public
19 #define protected public
20 #define UNIT_TEST 1
21 
22 #include "plugin/plugins/ffmpeg_adapter/utils/bit_reader.h"
23 
24 using namespace testing::ext;
25 
26 namespace OHOS {
27 namespace Media {
28 namespace Test {
29 using namespace Plugin;
30 
31 class TestBitReader : public ::testing::Test {
32 public:
SetUp()33     void SetUp() override
34     {
35     }
36 
TearDown()37     void TearDown() override
38     {
39     }
40     Ffmpeg::BitReader bitReader;
41 };
42 
43 HWTEST_F(TestBitReader, test_read_bits, TestSize.Level1)
44 {
45     const uint8_t data[] = {0xff, 0x11, 0x22, 0x33};
46     bitReader.Reset(data, sizeof(data));
47     uint32_t val = 0;
48     EXPECT_EQ(bitReader.ReadBits(4, val), true);
49     EXPECT_EQ(val, 0xf);
50 
51     EXPECT_EQ(bitReader.ReadBits(8, val), true);
52     EXPECT_EQ(val, 0xf1);
53 
54     EXPECT_EQ(bitReader.GetAvailableBits(), 20);
55     EXPECT_EQ(bitReader.ReadBits(20, val), true);
56     EXPECT_EQ(val, 0x12233);
57 
58     EXPECT_EQ(bitReader.ReadBits(4, val), false);
59 }
60 
61 HWTEST_F(TestBitReader, test_skip_bits, TestSize.Level1)
62 {
63     const uint8_t data[] = {0xff, 0x11, 0x22, 0x33};
64     bitReader.Reset(data, sizeof(data));
65     uint32_t val = 0;
66     EXPECT_EQ(bitReader.ReadBits(4, val), true);
67     EXPECT_EQ(val, 0xf);
68     bitReader.SkipBits(4);
69     EXPECT_EQ(bitReader.ReadBits(8, val), true);
70     EXPECT_EQ(val, 0x11);
71     bitReader.SkipBits(8);
72     EXPECT_EQ(bitReader.ReadBits(8, val), true);
73     EXPECT_EQ(val, 0x33);
74 }
75 
76 HWTEST_F(TestBitReader, test_show_bits, TestSize.Level1)
77 {
78     const uint8_t data[] = {0xff, 0x11, 0x22, 0x33};
79     bitReader.Reset(data, sizeof(data));
80     uint32_t val = 0;
81     EXPECT_EQ(bitReader.ReadBits(4, val), true);
82     EXPECT_EQ(val, 0xf);
83     EXPECT_EQ(bitReader.PeekBits(4, val), true);
84     EXPECT_EQ(val, 0xf);
85     bitReader.SkipBits(4);
86     EXPECT_EQ(bitReader.PeekBits(8, val), true);
87     EXPECT_EQ(val, 0x11);
88     EXPECT_EQ(bitReader.ReadBits(8, val), true);
89     EXPECT_EQ(val, 0x11);
90 }
91 
92 HWTEST_F(TestBitReader, test_seek_bits, TestSize.Level1)
93 {
94     const uint8_t data[] = {0xff, 0x11, 0x22, 0x33};
95     bitReader.Reset(data, sizeof(data));
96     uint32_t val = 0;
97     EXPECT_EQ(bitReader.ReadBits(4, val), true);
98     EXPECT_EQ(val, 0xf);
99     bitReader.SkipBits(20);
100     EXPECT_EQ(bitReader.ReadBits(8, val), true);
101     EXPECT_EQ(val, 0x33);
102     EXPECT_EQ(bitReader.GetAvailableBits(), 0);
103     EXPECT_EQ(bitReader.SeekTo(0), true);
104     EXPECT_EQ(bitReader.ReadBits(4, val), true);
105     EXPECT_EQ(val, 0xf);
106 }
107 } // namespace Test
108 } // namespace Media
109 } // namespace OHOS
110