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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include <stdint.h> | 5 #include <stdint.h> |
6 | 6 |
7 #include <limits> | 7 #include <limits> |
| 8 #include <memory> |
8 | 9 |
9 #include "media/base/audio_buffer.h" | 10 #include "media/base/audio_buffer.h" |
10 #include "media/base/audio_bus.h" | 11 #include "media/base/audio_bus.h" |
11 #include "media/base/test_helpers.h" | 12 #include "media/base/test_helpers.h" |
12 #include "testing/gtest/include/gtest/gtest.h" | 13 #include "testing/gtest/include/gtest/gtest.h" |
13 | 14 |
14 namespace media { | 15 namespace media { |
15 | 16 |
16 static const int kSampleRate = 48000; | 17 static const int kSampleRate = 48000; |
17 | 18 |
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45 channels, | 46 channels, |
46 kSampleRate, | 47 kSampleRate, |
47 0, | 48 0, |
48 1, | 49 1, |
49 frames, | 50 frames, |
50 timestamp); | 51 timestamp); |
51 EXPECT_EQ(frames, buffer->frame_count()); | 52 EXPECT_EQ(frames, buffer->frame_count()); |
52 EXPECT_EQ(timestamp, buffer->timestamp()); | 53 EXPECT_EQ(timestamp, buffer->timestamp()); |
53 EXPECT_EQ(duration, buffer->duration()); | 54 EXPECT_EQ(duration, buffer->duration()); |
54 | 55 |
55 scoped_ptr<AudioBus> bus = AudioBus::Create(channels, frames); | 56 std::unique_ptr<AudioBus> bus = AudioBus::Create(channels, frames); |
56 | 57 |
57 // Verify all frames before trimming. | 58 // Verify all frames before trimming. |
58 buffer->ReadFrames(frames, 0, 0, bus.get()); | 59 buffer->ReadFrames(frames, 0, 0, bus.get()); |
59 VerifyBus(bus.get(), frames, 0, 1); | 60 VerifyBus(bus.get(), frames, 0, 1); |
60 | 61 |
61 // Trim 10ms of frames from the middle of the buffer. | 62 // Trim 10ms of frames from the middle of the buffer. |
62 int trim_start = frames / 2; | 63 int trim_start = frames / 2; |
63 const int trim_length = kSampleRate / 100; | 64 const int trim_length = kSampleRate / 100; |
64 const base::TimeDelta trim_duration = base::TimeDelta::FromMilliseconds(10); | 65 const base::TimeDelta trim_duration = base::TimeDelta::FromMilliseconds(10); |
65 buffer->TrimRange(trim_start, trim_start + trim_length); | 66 buffer->TrimRange(trim_start, trim_start + trim_length); |
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207 } | 208 } |
208 | 209 |
209 TEST(AudioBufferTest, ReadU8) { | 210 TEST(AudioBufferTest, ReadU8) { |
210 const ChannelLayout channel_layout = CHANNEL_LAYOUT_4_0; | 211 const ChannelLayout channel_layout = CHANNEL_LAYOUT_4_0; |
211 const int channels = ChannelLayoutToChannelCount(channel_layout); | 212 const int channels = ChannelLayoutToChannelCount(channel_layout); |
212 const int frames = 10; | 213 const int frames = 10; |
213 const base::TimeDelta start_time; | 214 const base::TimeDelta start_time; |
214 scoped_refptr<AudioBuffer> buffer = | 215 scoped_refptr<AudioBuffer> buffer = |
215 MakeAudioBuffer<uint8_t>(kSampleFormatU8, channel_layout, channels, | 216 MakeAudioBuffer<uint8_t>(kSampleFormatU8, channel_layout, channels, |
216 kSampleRate, 128, 1, frames, start_time); | 217 kSampleRate, 128, 1, frames, start_time); |
217 scoped_ptr<AudioBus> bus = AudioBus::Create(channels, frames); | 218 std::unique_ptr<AudioBus> bus = AudioBus::Create(channels, frames); |
218 buffer->ReadFrames(frames, 0, 0, bus.get()); | 219 buffer->ReadFrames(frames, 0, 0, bus.get()); |
219 VerifyBus(bus.get(), frames, 0, 1.0f / 127.0f); | 220 VerifyBus(bus.get(), frames, 0, 1.0f / 127.0f); |
220 | 221 |
221 // Now read the same data one frame at a time. | 222 // Now read the same data one frame at a time. |
222 bus->Zero(); | 223 bus->Zero(); |
223 for (int i = 0; i < frames; ++i) | 224 for (int i = 0; i < frames; ++i) |
224 buffer->ReadFrames(1, i, i, bus.get()); | 225 buffer->ReadFrames(1, i, i, bus.get()); |
225 VerifyBus(bus.get(), frames, 0, 1.0f / 127.0f); | 226 VerifyBus(bus.get(), frames, 0, 1.0f / 127.0f); |
226 } | 227 } |
227 | 228 |
228 TEST(AudioBufferTest, ReadS16) { | 229 TEST(AudioBufferTest, ReadS16) { |
229 const ChannelLayout channel_layout = CHANNEL_LAYOUT_STEREO; | 230 const ChannelLayout channel_layout = CHANNEL_LAYOUT_STEREO; |
230 const int channels = ChannelLayoutToChannelCount(channel_layout); | 231 const int channels = ChannelLayoutToChannelCount(channel_layout); |
231 const int frames = 10; | 232 const int frames = 10; |
232 const base::TimeDelta start_time; | 233 const base::TimeDelta start_time; |
233 scoped_refptr<AudioBuffer> buffer = | 234 scoped_refptr<AudioBuffer> buffer = |
234 MakeAudioBuffer<int16_t>(kSampleFormatS16, channel_layout, channels, | 235 MakeAudioBuffer<int16_t>(kSampleFormatS16, channel_layout, channels, |
235 kSampleRate, 1, 1, frames, start_time); | 236 kSampleRate, 1, 1, frames, start_time); |
236 scoped_ptr<AudioBus> bus = AudioBus::Create(channels, frames); | 237 std::unique_ptr<AudioBus> bus = AudioBus::Create(channels, frames); |
237 buffer->ReadFrames(frames, 0, 0, bus.get()); | 238 buffer->ReadFrames(frames, 0, 0, bus.get()); |
238 VerifyBus(bus.get(), frames, 1.0f / std::numeric_limits<int16_t>::max(), | 239 VerifyBus(bus.get(), frames, 1.0f / std::numeric_limits<int16_t>::max(), |
239 1.0f / std::numeric_limits<int16_t>::max()); | 240 1.0f / std::numeric_limits<int16_t>::max()); |
240 | 241 |
241 // Now read the same data one frame at a time. | 242 // Now read the same data one frame at a time. |
242 bus->Zero(); | 243 bus->Zero(); |
243 for (int i = 0; i < frames; ++i) | 244 for (int i = 0; i < frames; ++i) |
244 buffer->ReadFrames(1, i, i, bus.get()); | 245 buffer->ReadFrames(1, i, i, bus.get()); |
245 VerifyBus(bus.get(), frames, 1.0f / std::numeric_limits<int16_t>::max(), | 246 VerifyBus(bus.get(), frames, 1.0f / std::numeric_limits<int16_t>::max(), |
246 1.0f / std::numeric_limits<int16_t>::max()); | 247 1.0f / std::numeric_limits<int16_t>::max()); |
247 } | 248 } |
248 | 249 |
249 TEST(AudioBufferTest, ReadS32) { | 250 TEST(AudioBufferTest, ReadS32) { |
250 const ChannelLayout channel_layout = CHANNEL_LAYOUT_STEREO; | 251 const ChannelLayout channel_layout = CHANNEL_LAYOUT_STEREO; |
251 const int channels = ChannelLayoutToChannelCount(channel_layout); | 252 const int channels = ChannelLayoutToChannelCount(channel_layout); |
252 const int frames = 20; | 253 const int frames = 20; |
253 const base::TimeDelta start_time; | 254 const base::TimeDelta start_time; |
254 scoped_refptr<AudioBuffer> buffer = | 255 scoped_refptr<AudioBuffer> buffer = |
255 MakeAudioBuffer<int32_t>(kSampleFormatS32, channel_layout, channels, | 256 MakeAudioBuffer<int32_t>(kSampleFormatS32, channel_layout, channels, |
256 kSampleRate, 1, 1, frames, start_time); | 257 kSampleRate, 1, 1, frames, start_time); |
257 scoped_ptr<AudioBus> bus = AudioBus::Create(channels, frames); | 258 std::unique_ptr<AudioBus> bus = AudioBus::Create(channels, frames); |
258 buffer->ReadFrames(frames, 0, 0, bus.get()); | 259 buffer->ReadFrames(frames, 0, 0, bus.get()); |
259 VerifyBus(bus.get(), frames, 1.0f / std::numeric_limits<int32_t>::max(), | 260 VerifyBus(bus.get(), frames, 1.0f / std::numeric_limits<int32_t>::max(), |
260 1.0f / std::numeric_limits<int32_t>::max()); | 261 1.0f / std::numeric_limits<int32_t>::max()); |
261 | 262 |
262 // Read second 10 frames. | 263 // Read second 10 frames. |
263 bus->Zero(); | 264 bus->Zero(); |
264 buffer->ReadFrames(10, 10, 0, bus.get()); | 265 buffer->ReadFrames(10, 10, 0, bus.get()); |
265 VerifyBus(bus.get(), 10, 11.0f / std::numeric_limits<int32_t>::max(), | 266 VerifyBus(bus.get(), 10, 11.0f / std::numeric_limits<int32_t>::max(), |
266 1.0f / std::numeric_limits<int32_t>::max()); | 267 1.0f / std::numeric_limits<int32_t>::max()); |
267 } | 268 } |
268 | 269 |
269 TEST(AudioBufferTest, ReadF32) { | 270 TEST(AudioBufferTest, ReadF32) { |
270 const ChannelLayout channel_layout = CHANNEL_LAYOUT_STEREO; | 271 const ChannelLayout channel_layout = CHANNEL_LAYOUT_STEREO; |
271 const int channels = ChannelLayoutToChannelCount(channel_layout); | 272 const int channels = ChannelLayoutToChannelCount(channel_layout); |
272 const int frames = 20; | 273 const int frames = 20; |
273 const base::TimeDelta start_time; | 274 const base::TimeDelta start_time; |
274 scoped_refptr<AudioBuffer> buffer = MakeAudioBuffer<float>(kSampleFormatF32, | 275 scoped_refptr<AudioBuffer> buffer = MakeAudioBuffer<float>(kSampleFormatF32, |
275 channel_layout, | 276 channel_layout, |
276 channels, | 277 channels, |
277 kSampleRate, | 278 kSampleRate, |
278 1.0f, | 279 1.0f, |
279 1.0f, | 280 1.0f, |
280 frames, | 281 frames, |
281 start_time); | 282 start_time); |
282 scoped_ptr<AudioBus> bus = AudioBus::Create(channels, frames); | 283 std::unique_ptr<AudioBus> bus = AudioBus::Create(channels, frames); |
283 buffer->ReadFrames(10, 0, 0, bus.get()); | 284 buffer->ReadFrames(10, 0, 0, bus.get()); |
284 VerifyBus(bus.get(), 10, 1, 1); | 285 VerifyBus(bus.get(), 10, 1, 1); |
285 | 286 |
286 // Read second 10 frames. | 287 // Read second 10 frames. |
287 bus->Zero(); | 288 bus->Zero(); |
288 buffer->ReadFrames(10, 10, 0, bus.get()); | 289 buffer->ReadFrames(10, 10, 0, bus.get()); |
289 VerifyBus(bus.get(), 10, 11, 1); | 290 VerifyBus(bus.get(), 10, 11, 1); |
290 } | 291 } |
291 | 292 |
292 TEST(AudioBufferTest, ReadS16Planar) { | 293 TEST(AudioBufferTest, ReadS16Planar) { |
293 const ChannelLayout channel_layout = CHANNEL_LAYOUT_STEREO; | 294 const ChannelLayout channel_layout = CHANNEL_LAYOUT_STEREO; |
294 const int channels = ChannelLayoutToChannelCount(channel_layout); | 295 const int channels = ChannelLayoutToChannelCount(channel_layout); |
295 const int frames = 20; | 296 const int frames = 20; |
296 const base::TimeDelta start_time; | 297 const base::TimeDelta start_time; |
297 scoped_refptr<AudioBuffer> buffer = | 298 scoped_refptr<AudioBuffer> buffer = |
298 MakeAudioBuffer<int16_t>(kSampleFormatPlanarS16, channel_layout, channels, | 299 MakeAudioBuffer<int16_t>(kSampleFormatPlanarS16, channel_layout, channels, |
299 kSampleRate, 1, 1, frames, start_time); | 300 kSampleRate, 1, 1, frames, start_time); |
300 scoped_ptr<AudioBus> bus = AudioBus::Create(channels, frames); | 301 std::unique_ptr<AudioBus> bus = AudioBus::Create(channels, frames); |
301 buffer->ReadFrames(10, 0, 0, bus.get()); | 302 buffer->ReadFrames(10, 0, 0, bus.get()); |
302 VerifyBus(bus.get(), 10, 1.0f / std::numeric_limits<int16_t>::max(), | 303 VerifyBus(bus.get(), 10, 1.0f / std::numeric_limits<int16_t>::max(), |
303 1.0f / std::numeric_limits<int16_t>::max()); | 304 1.0f / std::numeric_limits<int16_t>::max()); |
304 | 305 |
305 // Read all the frames backwards, one by one. ch[0] should be 20, 19, ... | 306 // Read all the frames backwards, one by one. ch[0] should be 20, 19, ... |
306 bus->Zero(); | 307 bus->Zero(); |
307 for (int i = frames - 1; i >= 0; --i) | 308 for (int i = frames - 1; i >= 0; --i) |
308 buffer->ReadFrames(1, i, i, bus.get()); | 309 buffer->ReadFrames(1, i, i, bus.get()); |
309 VerifyBus(bus.get(), frames, 1.0f / std::numeric_limits<int16_t>::max(), | 310 VerifyBus(bus.get(), frames, 1.0f / std::numeric_limits<int16_t>::max(), |
310 1.0f / std::numeric_limits<int16_t>::max()); | 311 1.0f / std::numeric_limits<int16_t>::max()); |
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333 channels, | 334 channels, |
334 kSampleRate, | 335 kSampleRate, |
335 1.0f, | 336 1.0f, |
336 1.0f, | 337 1.0f, |
337 frames, | 338 frames, |
338 start_time); | 339 start_time); |
339 | 340 |
340 // Read all 100 frames from the buffer. F32 is planar, so ch[0] should be 1, | 341 // Read all 100 frames from the buffer. F32 is planar, so ch[0] should be 1, |
341 // 2, 3, 4, ..., ch[1] should be 101, 102, 103, ..., and so on for all 4 | 342 // 2, 3, 4, ..., ch[1] should be 101, 102, 103, ..., and so on for all 4 |
342 // channels. | 343 // channels. |
343 scoped_ptr<AudioBus> bus = AudioBus::Create(channels, 100); | 344 std::unique_ptr<AudioBus> bus = AudioBus::Create(channels, 100); |
344 buffer->ReadFrames(frames, 0, 0, bus.get()); | 345 buffer->ReadFrames(frames, 0, 0, bus.get()); |
345 VerifyBus(bus.get(), frames, 1, 1); | 346 VerifyBus(bus.get(), frames, 1, 1); |
346 | 347 |
347 // Now read 20 frames from the middle of the buffer. | 348 // Now read 20 frames from the middle of the buffer. |
348 bus->Zero(); | 349 bus->Zero(); |
349 buffer->ReadFrames(20, 50, 0, bus.get()); | 350 buffer->ReadFrames(20, 50, 0, bus.get()); |
350 VerifyBus(bus.get(), 20, 51, 1); | 351 VerifyBus(bus.get(), 20, 51, 1); |
351 } | 352 } |
352 | 353 |
353 TEST(AudioBufferTest, EmptyBuffer) { | 354 TEST(AudioBufferTest, EmptyBuffer) { |
354 const ChannelLayout channel_layout = CHANNEL_LAYOUT_4_0; | 355 const ChannelLayout channel_layout = CHANNEL_LAYOUT_4_0; |
355 const int channels = ChannelLayoutToChannelCount(channel_layout); | 356 const int channels = ChannelLayoutToChannelCount(channel_layout); |
356 const int frames = kSampleRate / 100; | 357 const int frames = kSampleRate / 100; |
357 const base::TimeDelta start_time; | 358 const base::TimeDelta start_time; |
358 scoped_refptr<AudioBuffer> buffer = AudioBuffer::CreateEmptyBuffer( | 359 scoped_refptr<AudioBuffer> buffer = AudioBuffer::CreateEmptyBuffer( |
359 channel_layout, channels, kSampleRate, frames, start_time); | 360 channel_layout, channels, kSampleRate, frames, start_time); |
360 EXPECT_EQ(frames, buffer->frame_count()); | 361 EXPECT_EQ(frames, buffer->frame_count()); |
361 EXPECT_EQ(start_time, buffer->timestamp()); | 362 EXPECT_EQ(start_time, buffer->timestamp()); |
362 EXPECT_EQ(base::TimeDelta::FromMilliseconds(10), buffer->duration()); | 363 EXPECT_EQ(base::TimeDelta::FromMilliseconds(10), buffer->duration()); |
363 EXPECT_FALSE(buffer->end_of_stream()); | 364 EXPECT_FALSE(buffer->end_of_stream()); |
364 | 365 |
365 // Read all 100 frames from the buffer. All data should be 0. | 366 // Read all 100 frames from the buffer. All data should be 0. |
366 scoped_ptr<AudioBus> bus = AudioBus::Create(channels, frames); | 367 std::unique_ptr<AudioBus> bus = AudioBus::Create(channels, frames); |
367 buffer->ReadFrames(frames, 0, 0, bus.get()); | 368 buffer->ReadFrames(frames, 0, 0, bus.get()); |
368 VerifyBus(bus.get(), frames, 0, 0); | 369 VerifyBus(bus.get(), frames, 0, 0); |
369 } | 370 } |
370 | 371 |
371 TEST(AudioBufferTest, Trim) { | 372 TEST(AudioBufferTest, Trim) { |
372 const ChannelLayout channel_layout = CHANNEL_LAYOUT_4_0; | 373 const ChannelLayout channel_layout = CHANNEL_LAYOUT_4_0; |
373 const int channels = ChannelLayoutToChannelCount(channel_layout); | 374 const int channels = ChannelLayoutToChannelCount(channel_layout); |
374 const int frames = kSampleRate / 10; | 375 const int frames = kSampleRate / 10; |
375 const base::TimeDelta start_time; | 376 const base::TimeDelta start_time; |
376 const base::TimeDelta duration = base::TimeDelta::FromMilliseconds(100); | 377 const base::TimeDelta duration = base::TimeDelta::FromMilliseconds(100); |
377 scoped_refptr<AudioBuffer> buffer = | 378 scoped_refptr<AudioBuffer> buffer = |
378 MakeAudioBuffer<float>(kSampleFormatPlanarF32, | 379 MakeAudioBuffer<float>(kSampleFormatPlanarF32, |
379 channel_layout, | 380 channel_layout, |
380 channels, | 381 channels, |
381 kSampleRate, | 382 kSampleRate, |
382 0.0f, | 383 0.0f, |
383 1.0f, | 384 1.0f, |
384 frames, | 385 frames, |
385 start_time); | 386 start_time); |
386 EXPECT_EQ(frames, buffer->frame_count()); | 387 EXPECT_EQ(frames, buffer->frame_count()); |
387 EXPECT_EQ(start_time, buffer->timestamp()); | 388 EXPECT_EQ(start_time, buffer->timestamp()); |
388 EXPECT_EQ(duration, buffer->duration()); | 389 EXPECT_EQ(duration, buffer->duration()); |
389 | 390 |
390 const int ten_ms_of_frames = kSampleRate / 100; | 391 const int ten_ms_of_frames = kSampleRate / 100; |
391 const base::TimeDelta ten_ms = base::TimeDelta::FromMilliseconds(10); | 392 const base::TimeDelta ten_ms = base::TimeDelta::FromMilliseconds(10); |
392 | 393 |
393 scoped_ptr<AudioBus> bus = AudioBus::Create(channels, frames); | 394 std::unique_ptr<AudioBus> bus = AudioBus::Create(channels, frames); |
394 buffer->ReadFrames(buffer->frame_count(), 0, 0, bus.get()); | 395 buffer->ReadFrames(buffer->frame_count(), 0, 0, bus.get()); |
395 VerifyBus(bus.get(), buffer->frame_count(), 0.0f, 1.0f); | 396 VerifyBus(bus.get(), buffer->frame_count(), 0.0f, 1.0f); |
396 | 397 |
397 // Trim off 10ms of frames from the start. | 398 // Trim off 10ms of frames from the start. |
398 buffer->TrimStart(ten_ms_of_frames); | 399 buffer->TrimStart(ten_ms_of_frames); |
399 EXPECT_EQ(start_time + ten_ms, buffer->timestamp()); | 400 EXPECT_EQ(start_time + ten_ms, buffer->timestamp()); |
400 EXPECT_EQ(frames - ten_ms_of_frames, buffer->frame_count()); | 401 EXPECT_EQ(frames - ten_ms_of_frames, buffer->frame_count()); |
401 EXPECT_EQ(duration - ten_ms, buffer->duration()); | 402 EXPECT_EQ(duration - ten_ms, buffer->duration()); |
402 buffer->ReadFrames(buffer->frame_count(), 0, 0, bus.get()); | 403 buffer->ReadFrames(buffer->frame_count(), 0, 0, bus.get()); |
403 VerifyBus(bus.get(), buffer->frame_count(), ten_ms_of_frames, 1.0f); | 404 VerifyBus(bus.get(), buffer->frame_count(), ten_ms_of_frames, 1.0f); |
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547 | 548 |
548 TEST(AudioBufferTest, ReadFramesInterleavedS16FromPlanarS16) { | 549 TEST(AudioBufferTest, ReadFramesInterleavedS16FromPlanarS16) { |
549 ReadFramesInterleavedS16Test(kSampleFormatPlanarS16); | 550 ReadFramesInterleavedS16Test(kSampleFormatPlanarS16); |
550 } | 551 } |
551 | 552 |
552 TEST(AudioBufferTest, ReadFramesInterleavedS16FromPlanarF32) { | 553 TEST(AudioBufferTest, ReadFramesInterleavedS16FromPlanarF32) { |
553 ReadFramesInterleavedS16Test(kSampleFormatPlanarF32); | 554 ReadFramesInterleavedS16Test(kSampleFormatPlanarF32); |
554 } | 555 } |
555 | 556 |
556 } // namespace media | 557 } // namespace media |
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