OLD | NEW |
1 /* | 1 /* |
2 * Copyright 2015 The WebRTC Project Authors. All rights reserved. | 2 * Copyright 2015 The WebRTC Project Authors. All rights reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
11 #include "webrtc/base/bitbuffer.h" | 11 #include "webrtc/base/bitbuffer.h" |
12 #include "webrtc/base/bytebuffer.h" | 12 #include "webrtc/base/bytebuffer.h" |
13 #include "webrtc/base/common.h" | 13 #include "webrtc/base/common.h" |
14 #include "webrtc/base/gunit.h" | 14 #include "webrtc/base/gunit.h" |
15 | 15 |
16 namespace rtc { | 16 namespace rtc { |
17 | 17 |
18 TEST(BitBufferTest, ConsumeBits) { | 18 TEST(BitBufferTest, ConsumeBits) { |
19 const uint8 bytes[64] = {0}; | 19 const uint8_t bytes[64] = {0}; |
20 BitBuffer buffer(bytes, 32); | 20 BitBuffer buffer(bytes, 32); |
21 uint64 total_bits = 32 * 8; | 21 uint64_t total_bits = 32 * 8; |
22 EXPECT_EQ(total_bits, buffer.RemainingBitCount()); | 22 EXPECT_EQ(total_bits, buffer.RemainingBitCount()); |
23 EXPECT_TRUE(buffer.ConsumeBits(3)); | 23 EXPECT_TRUE(buffer.ConsumeBits(3)); |
24 total_bits -= 3; | 24 total_bits -= 3; |
25 EXPECT_EQ(total_bits, buffer.RemainingBitCount()); | 25 EXPECT_EQ(total_bits, buffer.RemainingBitCount()); |
26 EXPECT_TRUE(buffer.ConsumeBits(3)); | 26 EXPECT_TRUE(buffer.ConsumeBits(3)); |
27 total_bits -= 3; | 27 total_bits -= 3; |
28 EXPECT_EQ(total_bits, buffer.RemainingBitCount()); | 28 EXPECT_EQ(total_bits, buffer.RemainingBitCount()); |
29 EXPECT_TRUE(buffer.ConsumeBits(15)); | 29 EXPECT_TRUE(buffer.ConsumeBits(15)); |
30 total_bits -= 15; | 30 total_bits -= 15; |
31 EXPECT_EQ(total_bits, buffer.RemainingBitCount()); | 31 EXPECT_EQ(total_bits, buffer.RemainingBitCount()); |
32 EXPECT_TRUE(buffer.ConsumeBits(37)); | 32 EXPECT_TRUE(buffer.ConsumeBits(37)); |
33 total_bits -= 37; | 33 total_bits -= 37; |
34 EXPECT_EQ(total_bits, buffer.RemainingBitCount()); | 34 EXPECT_EQ(total_bits, buffer.RemainingBitCount()); |
35 | 35 |
36 EXPECT_FALSE(buffer.ConsumeBits(32 * 8)); | 36 EXPECT_FALSE(buffer.ConsumeBits(32 * 8)); |
37 EXPECT_EQ(total_bits, buffer.RemainingBitCount()); | 37 EXPECT_EQ(total_bits, buffer.RemainingBitCount()); |
38 } | 38 } |
39 | 39 |
40 TEST(BitBufferTest, ReadBytesAligned) { | 40 TEST(BitBufferTest, ReadBytesAligned) { |
41 const uint8 bytes[] = {0x0A, 0xBC, 0xDE, 0xF1, 0x23, 0x45, 0x67, 0x89}; | 41 const uint8_t bytes[] = {0x0A, 0xBC, 0xDE, 0xF1, 0x23, 0x45, 0x67, 0x89}; |
42 uint8 val8; | 42 uint8_t val8; |
43 uint16 val16; | 43 uint16_t val16; |
44 uint32 val32; | 44 uint32_t val32; |
45 BitBuffer buffer(bytes, 8); | 45 BitBuffer buffer(bytes, 8); |
46 EXPECT_TRUE(buffer.ReadUInt8(&val8)); | 46 EXPECT_TRUE(buffer.ReadUInt8(&val8)); |
47 EXPECT_EQ(0x0Au, val8); | 47 EXPECT_EQ(0x0Au, val8); |
48 EXPECT_TRUE(buffer.ReadUInt8(&val8)); | 48 EXPECT_TRUE(buffer.ReadUInt8(&val8)); |
49 EXPECT_EQ(0xBCu, val8); | 49 EXPECT_EQ(0xBCu, val8); |
50 EXPECT_TRUE(buffer.ReadUInt16(&val16)); | 50 EXPECT_TRUE(buffer.ReadUInt16(&val16)); |
51 EXPECT_EQ(0xDEF1u, val16); | 51 EXPECT_EQ(0xDEF1u, val16); |
52 EXPECT_TRUE(buffer.ReadUInt32(&val32)); | 52 EXPECT_TRUE(buffer.ReadUInt32(&val32)); |
53 EXPECT_EQ(0x23456789u, val32); | 53 EXPECT_EQ(0x23456789u, val32); |
54 } | 54 } |
55 | 55 |
56 TEST(BitBufferTest, ReadBytesOffset4) { | 56 TEST(BitBufferTest, ReadBytesOffset4) { |
57 const uint8 bytes[] = {0x0A, 0xBC, 0xDE, 0xF1, 0x23, 0x45, 0x67, 0x89, 0x0A}; | 57 const uint8_t bytes[] = { |
58 uint8 val8; | 58 0x0A, 0xBC, 0xDE, 0xF1, 0x23, 0x45, 0x67, 0x89, 0x0A}; |
59 uint16 val16; | 59 uint8_t val8; |
60 uint32 val32; | 60 uint16_t val16; |
| 61 uint32_t val32; |
61 BitBuffer buffer(bytes, 9); | 62 BitBuffer buffer(bytes, 9); |
62 EXPECT_TRUE(buffer.ConsumeBits(4)); | 63 EXPECT_TRUE(buffer.ConsumeBits(4)); |
63 | 64 |
64 EXPECT_TRUE(buffer.ReadUInt8(&val8)); | 65 EXPECT_TRUE(buffer.ReadUInt8(&val8)); |
65 EXPECT_EQ(0xABu, val8); | 66 EXPECT_EQ(0xABu, val8); |
66 EXPECT_TRUE(buffer.ReadUInt8(&val8)); | 67 EXPECT_TRUE(buffer.ReadUInt8(&val8)); |
67 EXPECT_EQ(0xCDu, val8); | 68 EXPECT_EQ(0xCDu, val8); |
68 EXPECT_TRUE(buffer.ReadUInt16(&val16)); | 69 EXPECT_TRUE(buffer.ReadUInt16(&val16)); |
69 EXPECT_EQ(0xEF12u, val16); | 70 EXPECT_EQ(0xEF12u, val16); |
70 EXPECT_TRUE(buffer.ReadUInt32(&val32)); | 71 EXPECT_TRUE(buffer.ReadUInt32(&val32)); |
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81 // 0b10010111, | 82 // 0b10010111, |
82 // 0b01010011, | 83 // 0b01010011, |
83 // 0b00001110, | 84 // 0b00001110, |
84 // 0b11001010, | 85 // 0b11001010, |
85 // 0b10000110, | 86 // 0b10000110, |
86 // 0b01000010 | 87 // 0b01000010 |
87 // xxxxx <-- last 5 bits unused. | 88 // xxxxx <-- last 5 bits unused. |
88 | 89 |
89 // The bytes. It almost looks like counting down by two at a time, except the | 90 // The bytes. It almost looks like counting down by two at a time, except the |
90 // jump at 5->3->0, since that's when the high bit is turned off. | 91 // jump at 5->3->0, since that's when the high bit is turned off. |
91 const uint8 bytes[] = {0x1F, 0xDB, 0x97, 0x53, 0x0E, 0xCA, 0x86, 0x42}; | 92 const uint8_t bytes[] = {0x1F, 0xDB, 0x97, 0x53, 0x0E, 0xCA, 0x86, 0x42}; |
92 | 93 |
93 uint8 val8; | 94 uint8_t val8; |
94 uint16 val16; | 95 uint16_t val16; |
95 uint32 val32; | 96 uint32_t val32; |
96 BitBuffer buffer(bytes, 8); | 97 BitBuffer buffer(bytes, 8); |
97 EXPECT_TRUE(buffer.ConsumeBits(3)); | 98 EXPECT_TRUE(buffer.ConsumeBits(3)); |
98 EXPECT_TRUE(buffer.ReadUInt8(&val8)); | 99 EXPECT_TRUE(buffer.ReadUInt8(&val8)); |
99 EXPECT_EQ(0xFEu, val8); | 100 EXPECT_EQ(0xFEu, val8); |
100 EXPECT_TRUE(buffer.ReadUInt16(&val16)); | 101 EXPECT_TRUE(buffer.ReadUInt16(&val16)); |
101 EXPECT_EQ(0xDCBAu, val16); | 102 EXPECT_EQ(0xDCBAu, val16); |
102 EXPECT_TRUE(buffer.ReadUInt32(&val32)); | 103 EXPECT_TRUE(buffer.ReadUInt32(&val32)); |
103 EXPECT_EQ(0x98765432u, val32); | 104 EXPECT_EQ(0x98765432u, val32); |
104 // 5 bits left unread. Not enough to read a uint8. | 105 // 5 bits left unread. Not enough to read a uint8_t. |
105 EXPECT_EQ(5u, buffer.RemainingBitCount()); | 106 EXPECT_EQ(5u, buffer.RemainingBitCount()); |
106 EXPECT_FALSE(buffer.ReadUInt8(&val8)); | 107 EXPECT_FALSE(buffer.ReadUInt8(&val8)); |
107 } | 108 } |
108 | 109 |
109 TEST(BitBufferTest, ReadBits) { | 110 TEST(BitBufferTest, ReadBits) { |
110 // Bit values are: | 111 // Bit values are: |
111 // 0b01001101, | 112 // 0b01001101, |
112 // 0b00110010 | 113 // 0b00110010 |
113 const uint8 bytes[] = {0x4D, 0x32}; | 114 const uint8_t bytes[] = {0x4D, 0x32}; |
114 uint32_t val; | 115 uint32_t val; |
115 BitBuffer buffer(bytes, 2); | 116 BitBuffer buffer(bytes, 2); |
116 EXPECT_TRUE(buffer.ReadBits(&val, 3)); | 117 EXPECT_TRUE(buffer.ReadBits(&val, 3)); |
117 // 0b010 | 118 // 0b010 |
118 EXPECT_EQ(0x2u, val); | 119 EXPECT_EQ(0x2u, val); |
119 EXPECT_TRUE(buffer.ReadBits(&val, 2)); | 120 EXPECT_TRUE(buffer.ReadBits(&val, 2)); |
120 // 0b01 | 121 // 0b01 |
121 EXPECT_EQ(0x1u, val); | 122 EXPECT_EQ(0x1u, val); |
122 EXPECT_TRUE(buffer.ReadBits(&val, 7)); | 123 EXPECT_TRUE(buffer.ReadBits(&val, 7)); |
123 // 0b1010011 | 124 // 0b1010011 |
124 EXPECT_EQ(0x53u, val); | 125 EXPECT_EQ(0x53u, val); |
125 EXPECT_TRUE(buffer.ReadBits(&val, 2)); | 126 EXPECT_TRUE(buffer.ReadBits(&val, 2)); |
126 // 0b00 | 127 // 0b00 |
127 EXPECT_EQ(0x0u, val); | 128 EXPECT_EQ(0x0u, val); |
128 EXPECT_TRUE(buffer.ReadBits(&val, 1)); | 129 EXPECT_TRUE(buffer.ReadBits(&val, 1)); |
129 // 0b1 | 130 // 0b1 |
130 EXPECT_EQ(0x1u, val); | 131 EXPECT_EQ(0x1u, val); |
131 EXPECT_TRUE(buffer.ReadBits(&val, 1)); | 132 EXPECT_TRUE(buffer.ReadBits(&val, 1)); |
132 // 0b0 | 133 // 0b0 |
133 EXPECT_EQ(0x0u, val); | 134 EXPECT_EQ(0x0u, val); |
134 | 135 |
135 EXPECT_FALSE(buffer.ReadBits(&val, 1)); | 136 EXPECT_FALSE(buffer.ReadBits(&val, 1)); |
136 } | 137 } |
137 | 138 |
138 TEST(BitBufferTest, SetOffsetValues) { | 139 TEST(BitBufferTest, SetOffsetValues) { |
139 uint8 bytes[4] = {0}; | 140 uint8_t bytes[4] = {0}; |
140 BitBufferWriter buffer(bytes, 4); | 141 BitBufferWriter buffer(bytes, 4); |
141 | 142 |
142 size_t byte_offset, bit_offset; | 143 size_t byte_offset, bit_offset; |
143 // Bit offsets are [0,7]. | 144 // Bit offsets are [0,7]. |
144 EXPECT_TRUE(buffer.Seek(0, 0)); | 145 EXPECT_TRUE(buffer.Seek(0, 0)); |
145 EXPECT_TRUE(buffer.Seek(0, 7)); | 146 EXPECT_TRUE(buffer.Seek(0, 7)); |
146 buffer.GetCurrentOffset(&byte_offset, &bit_offset); | 147 buffer.GetCurrentOffset(&byte_offset, &bit_offset); |
147 EXPECT_EQ(0u, byte_offset); | 148 EXPECT_EQ(0u, byte_offset); |
148 EXPECT_EQ(7u, bit_offset); | 149 EXPECT_EQ(7u, bit_offset); |
149 EXPECT_FALSE(buffer.Seek(0, 8)); | 150 EXPECT_FALSE(buffer.Seek(0, 8)); |
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167 // Disable death test on Android because it relies on fork() and doesn't play | 168 // Disable death test on Android because it relies on fork() and doesn't play |
168 // nicely. | 169 // nicely. |
169 #if defined(GTEST_HAS_DEATH_TEST) | 170 #if defined(GTEST_HAS_DEATH_TEST) |
170 #if !defined(WEBRTC_ANDROID) | 171 #if !defined(WEBRTC_ANDROID) |
171 // Passing a NULL out parameter is death. | 172 // Passing a NULL out parameter is death. |
172 EXPECT_DEATH(buffer.GetCurrentOffset(&byte_offset, NULL), ""); | 173 EXPECT_DEATH(buffer.GetCurrentOffset(&byte_offset, NULL), ""); |
173 #endif | 174 #endif |
174 #endif | 175 #endif |
175 } | 176 } |
176 | 177 |
177 uint64 GolombEncoded(uint32 val) { | 178 uint64_t GolombEncoded(uint32_t val) { |
178 val++; | 179 val++; |
179 uint32 bit_counter = val; | 180 uint32_t bit_counter = val; |
180 uint64 bit_count = 0; | 181 uint64_t bit_count = 0; |
181 while (bit_counter > 0) { | 182 while (bit_counter > 0) { |
182 bit_count++; | 183 bit_count++; |
183 bit_counter >>= 1; | 184 bit_counter >>= 1; |
184 } | 185 } |
185 return static_cast<uint64>(val) << (64 - (bit_count * 2 - 1)); | 186 return static_cast<uint64_t>(val) << (64 - (bit_count * 2 - 1)); |
186 } | 187 } |
187 | 188 |
188 TEST(BitBufferTest, GolombUint32Values) { | 189 TEST(BitBufferTest, GolombUint32Values) { |
189 ByteBuffer byteBuffer; | 190 ByteBuffer byteBuffer; |
190 byteBuffer.Resize(16); | 191 byteBuffer.Resize(16); |
191 BitBuffer buffer(reinterpret_cast<const uint8*>(byteBuffer.Data()), | 192 BitBuffer buffer(reinterpret_cast<const uint8_t*>(byteBuffer.Data()), |
192 byteBuffer.Capacity()); | 193 byteBuffer.Capacity()); |
193 // Test over the uint32 range with a large enough step that the test doesn't | 194 // Test over the uint32_t range with a large enough step that the test doesn't |
194 // take forever. Around 20,000 iterations should do. | 195 // take forever. Around 20,000 iterations should do. |
195 const int kStep = std::numeric_limits<uint32>::max() / 20000; | 196 const int kStep = std::numeric_limits<uint32_t>::max() / 20000; |
196 for (uint32 i = 0; i < std::numeric_limits<uint32>::max() - kStep; | 197 for (uint32_t i = 0; i < std::numeric_limits<uint32_t>::max() - kStep; |
197 i += kStep) { | 198 i += kStep) { |
198 uint64 encoded_val = GolombEncoded(i); | 199 uint64_t encoded_val = GolombEncoded(i); |
199 byteBuffer.Clear(); | 200 byteBuffer.Clear(); |
200 byteBuffer.WriteUInt64(encoded_val); | 201 byteBuffer.WriteUInt64(encoded_val); |
201 uint32 decoded_val; | 202 uint32_t decoded_val; |
202 EXPECT_TRUE(buffer.Seek(0, 0)); | 203 EXPECT_TRUE(buffer.Seek(0, 0)); |
203 EXPECT_TRUE(buffer.ReadExponentialGolomb(&decoded_val)); | 204 EXPECT_TRUE(buffer.ReadExponentialGolomb(&decoded_val)); |
204 EXPECT_EQ(i, decoded_val); | 205 EXPECT_EQ(i, decoded_val); |
205 } | 206 } |
206 } | 207 } |
207 | 208 |
208 TEST(BitBufferTest, NoGolombOverread) { | 209 TEST(BitBufferTest, NoGolombOverread) { |
209 const uint8 bytes[] = {0x00, 0xFF, 0xFF}; | 210 const uint8_t bytes[] = {0x00, 0xFF, 0xFF}; |
210 // Make sure the bit buffer correctly enforces byte length on golomb reads. | 211 // Make sure the bit buffer correctly enforces byte length on golomb reads. |
211 // If it didn't, the above buffer would be valid at 3 bytes. | 212 // If it didn't, the above buffer would be valid at 3 bytes. |
212 BitBuffer buffer(bytes, 1); | 213 BitBuffer buffer(bytes, 1); |
213 uint32 decoded_val; | 214 uint32_t decoded_val; |
214 EXPECT_FALSE(buffer.ReadExponentialGolomb(&decoded_val)); | 215 EXPECT_FALSE(buffer.ReadExponentialGolomb(&decoded_val)); |
215 | 216 |
216 BitBuffer longer_buffer(bytes, 2); | 217 BitBuffer longer_buffer(bytes, 2); |
217 EXPECT_FALSE(longer_buffer.ReadExponentialGolomb(&decoded_val)); | 218 EXPECT_FALSE(longer_buffer.ReadExponentialGolomb(&decoded_val)); |
218 | 219 |
219 BitBuffer longest_buffer(bytes, 3); | 220 BitBuffer longest_buffer(bytes, 3); |
220 EXPECT_TRUE(longest_buffer.ReadExponentialGolomb(&decoded_val)); | 221 EXPECT_TRUE(longest_buffer.ReadExponentialGolomb(&decoded_val)); |
221 // Golomb should have read 9 bits, so 0x01FF, and since it is golomb, the | 222 // Golomb should have read 9 bits, so 0x01FF, and since it is golomb, the |
222 // result is 0x01FF - 1 = 0x01FE. | 223 // result is 0x01FF - 1 = 0x01FE. |
223 EXPECT_EQ(0x01FEu, decoded_val); | 224 EXPECT_EQ(0x01FEu, decoded_val); |
224 } | 225 } |
225 | 226 |
226 TEST(BitBufferWriterTest, SymmetricReadWrite) { | 227 TEST(BitBufferWriterTest, SymmetricReadWrite) { |
227 uint8 bytes[16] = {0}; | 228 uint8_t bytes[16] = {0}; |
228 BitBufferWriter buffer(bytes, 4); | 229 BitBufferWriter buffer(bytes, 4); |
229 | 230 |
230 // Write some bit data at various sizes. | 231 // Write some bit data at various sizes. |
231 EXPECT_TRUE(buffer.WriteBits(0x2u, 3)); | 232 EXPECT_TRUE(buffer.WriteBits(0x2u, 3)); |
232 EXPECT_TRUE(buffer.WriteBits(0x1u, 2)); | 233 EXPECT_TRUE(buffer.WriteBits(0x1u, 2)); |
233 EXPECT_TRUE(buffer.WriteBits(0x53u, 7)); | 234 EXPECT_TRUE(buffer.WriteBits(0x53u, 7)); |
234 EXPECT_TRUE(buffer.WriteBits(0x0u, 2)); | 235 EXPECT_TRUE(buffer.WriteBits(0x0u, 2)); |
235 EXPECT_TRUE(buffer.WriteBits(0x1u, 1)); | 236 EXPECT_TRUE(buffer.WriteBits(0x1u, 1)); |
236 EXPECT_TRUE(buffer.WriteBits(0x1ABCDu, 17)); | 237 EXPECT_TRUE(buffer.WriteBits(0x1ABCDu, 17)); |
237 // That should be all that fits in the buffer. | 238 // That should be all that fits in the buffer. |
238 EXPECT_FALSE(buffer.WriteBits(1, 1)); | 239 EXPECT_FALSE(buffer.WriteBits(1, 1)); |
239 | 240 |
240 EXPECT_TRUE(buffer.Seek(0, 0)); | 241 EXPECT_TRUE(buffer.Seek(0, 0)); |
241 uint32 val; | 242 uint32_t val; |
242 EXPECT_TRUE(buffer.ReadBits(&val, 3)); | 243 EXPECT_TRUE(buffer.ReadBits(&val, 3)); |
243 EXPECT_EQ(0x2u, val); | 244 EXPECT_EQ(0x2u, val); |
244 EXPECT_TRUE(buffer.ReadBits(&val, 2)); | 245 EXPECT_TRUE(buffer.ReadBits(&val, 2)); |
245 EXPECT_EQ(0x1u, val); | 246 EXPECT_EQ(0x1u, val); |
246 EXPECT_TRUE(buffer.ReadBits(&val, 7)); | 247 EXPECT_TRUE(buffer.ReadBits(&val, 7)); |
247 EXPECT_EQ(0x53u, val); | 248 EXPECT_EQ(0x53u, val); |
248 EXPECT_TRUE(buffer.ReadBits(&val, 2)); | 249 EXPECT_TRUE(buffer.ReadBits(&val, 2)); |
249 EXPECT_EQ(0x0u, val); | 250 EXPECT_EQ(0x0u, val); |
250 EXPECT_TRUE(buffer.ReadBits(&val, 1)); | 251 EXPECT_TRUE(buffer.ReadBits(&val, 1)); |
251 EXPECT_EQ(0x1u, val); | 252 EXPECT_EQ(0x1u, val); |
252 EXPECT_TRUE(buffer.ReadBits(&val, 17)); | 253 EXPECT_TRUE(buffer.ReadBits(&val, 17)); |
253 EXPECT_EQ(0x1ABCDu, val); | 254 EXPECT_EQ(0x1ABCDu, val); |
254 // And there should be nothing left. | 255 // And there should be nothing left. |
255 EXPECT_FALSE(buffer.ReadBits(&val, 1)); | 256 EXPECT_FALSE(buffer.ReadBits(&val, 1)); |
256 } | 257 } |
257 | 258 |
258 TEST(BitBufferWriterTest, SymmetricBytesMisaligned) { | 259 TEST(BitBufferWriterTest, SymmetricBytesMisaligned) { |
259 uint8 bytes[16] = {0}; | 260 uint8_t bytes[16] = {0}; |
260 BitBufferWriter buffer(bytes, 16); | 261 BitBufferWriter buffer(bytes, 16); |
261 | 262 |
262 // Offset 3, to get things misaligned. | 263 // Offset 3, to get things misaligned. |
263 EXPECT_TRUE(buffer.ConsumeBits(3)); | 264 EXPECT_TRUE(buffer.ConsumeBits(3)); |
264 EXPECT_TRUE(buffer.WriteUInt8(0x12u)); | 265 EXPECT_TRUE(buffer.WriteUInt8(0x12u)); |
265 EXPECT_TRUE(buffer.WriteUInt16(0x3456u)); | 266 EXPECT_TRUE(buffer.WriteUInt16(0x3456u)); |
266 EXPECT_TRUE(buffer.WriteUInt32(0x789ABCDEu)); | 267 EXPECT_TRUE(buffer.WriteUInt32(0x789ABCDEu)); |
267 | 268 |
268 buffer.Seek(0, 3); | 269 buffer.Seek(0, 3); |
269 uint8 val8; | 270 uint8_t val8; |
270 uint16 val16; | 271 uint16_t val16; |
271 uint32 val32; | 272 uint32_t val32; |
272 EXPECT_TRUE(buffer.ReadUInt8(&val8)); | 273 EXPECT_TRUE(buffer.ReadUInt8(&val8)); |
273 EXPECT_EQ(0x12u, val8); | 274 EXPECT_EQ(0x12u, val8); |
274 EXPECT_TRUE(buffer.ReadUInt16(&val16)); | 275 EXPECT_TRUE(buffer.ReadUInt16(&val16)); |
275 EXPECT_EQ(0x3456u, val16); | 276 EXPECT_EQ(0x3456u, val16); |
276 EXPECT_TRUE(buffer.ReadUInt32(&val32)); | 277 EXPECT_TRUE(buffer.ReadUInt32(&val32)); |
277 EXPECT_EQ(0x789ABCDEu, val32); | 278 EXPECT_EQ(0x789ABCDEu, val32); |
278 } | 279 } |
279 | 280 |
280 TEST(BitBufferWriterTest, SymmetricGolomb) { | 281 TEST(BitBufferWriterTest, SymmetricGolomb) { |
281 char test_string[] = "my precious"; | 282 char test_string[] = "my precious"; |
282 uint8 bytes[64] = {0}; | 283 uint8_t bytes[64] = {0}; |
283 BitBufferWriter buffer(bytes, 64); | 284 BitBufferWriter buffer(bytes, 64); |
284 for (size_t i = 0; i < ARRAY_SIZE(test_string); ++i) { | 285 for (size_t i = 0; i < ARRAY_SIZE(test_string); ++i) { |
285 EXPECT_TRUE(buffer.WriteExponentialGolomb(test_string[i])); | 286 EXPECT_TRUE(buffer.WriteExponentialGolomb(test_string[i])); |
286 } | 287 } |
287 buffer.Seek(0, 0); | 288 buffer.Seek(0, 0); |
288 for (size_t i = 0; i < ARRAY_SIZE(test_string); ++i) { | 289 for (size_t i = 0; i < ARRAY_SIZE(test_string); ++i) { |
289 uint32 val; | 290 uint32_t val; |
290 EXPECT_TRUE(buffer.ReadExponentialGolomb(&val)); | 291 EXPECT_TRUE(buffer.ReadExponentialGolomb(&val)); |
291 EXPECT_LE(val, std::numeric_limits<uint8>::max()); | 292 EXPECT_LE(val, std::numeric_limits<uint8_t>::max()); |
292 EXPECT_EQ(test_string[i], static_cast<char>(val)); | 293 EXPECT_EQ(test_string[i], static_cast<char>(val)); |
293 } | 294 } |
294 } | 295 } |
295 | 296 |
296 TEST(BitBufferWriterTest, WriteClearsBits) { | 297 TEST(BitBufferWriterTest, WriteClearsBits) { |
297 uint8 bytes[] = {0xFF, 0xFF}; | 298 uint8_t bytes[] = {0xFF, 0xFF}; |
298 BitBufferWriter buffer(bytes, 2); | 299 BitBufferWriter buffer(bytes, 2); |
299 EXPECT_TRUE(buffer.ConsumeBits(3)); | 300 EXPECT_TRUE(buffer.ConsumeBits(3)); |
300 EXPECT_TRUE(buffer.WriteBits(0, 1)); | 301 EXPECT_TRUE(buffer.WriteBits(0, 1)); |
301 EXPECT_EQ(0xEFu, bytes[0]); | 302 EXPECT_EQ(0xEFu, bytes[0]); |
302 EXPECT_TRUE(buffer.WriteBits(0, 3)); | 303 EXPECT_TRUE(buffer.WriteBits(0, 3)); |
303 EXPECT_EQ(0xE1u, bytes[0]); | 304 EXPECT_EQ(0xE1u, bytes[0]); |
304 EXPECT_TRUE(buffer.WriteBits(0, 2)); | 305 EXPECT_TRUE(buffer.WriteBits(0, 2)); |
305 EXPECT_EQ(0xE0u, bytes[0]); | 306 EXPECT_EQ(0xE0u, bytes[0]); |
306 EXPECT_EQ(0x7F, bytes[1]); | 307 EXPECT_EQ(0x7F, bytes[1]); |
307 } | 308 } |
308 | 309 |
309 } // namespace rtc | 310 } // namespace rtc |
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