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1 /* | 1 /* |
2 * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2013 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 // Modified from the Chromium original: | 11 // Modified from the Chromium original: |
12 // src/media/base/sinc_resampler_unittest.cc | 12 // src/media/base/sinc_resampler_unittest.cc |
13 | 13 |
14 // MSVC++ requires this to be set before any other includes to get M_PI. | 14 // MSVC++ requires this to be set before any other includes to get M_PI. |
15 #define _USE_MATH_DEFINES | 15 #define _USE_MATH_DEFINES |
16 | 16 |
17 #include <math.h> | 17 #include <math.h> |
18 | 18 |
| 19 #include <memory> |
| 20 |
19 #include "testing/gmock/include/gmock/gmock.h" | 21 #include "testing/gmock/include/gmock/gmock.h" |
20 #include "testing/gtest/include/gtest/gtest.h" | 22 #include "testing/gtest/include/gtest/gtest.h" |
21 #include "webrtc/base/scoped_ptr.h" | |
22 #include "webrtc/common_audio/resampler/sinc_resampler.h" | 23 #include "webrtc/common_audio/resampler/sinc_resampler.h" |
23 #include "webrtc/common_audio/resampler/sinusoidal_linear_chirp_source.h" | 24 #include "webrtc/common_audio/resampler/sinusoidal_linear_chirp_source.h" |
24 #include "webrtc/system_wrappers/include/cpu_features_wrapper.h" | 25 #include "webrtc/system_wrappers/include/cpu_features_wrapper.h" |
25 #include "webrtc/system_wrappers/include/stringize_macros.h" | 26 #include "webrtc/system_wrappers/include/stringize_macros.h" |
26 #include "webrtc/system_wrappers/include/tick_util.h" | 27 #include "webrtc/system_wrappers/include/tick_util.h" |
27 #include "webrtc/test/test_suite.h" | 28 #include "webrtc/test/test_suite.h" |
28 | 29 |
29 using testing::_; | 30 using testing::_; |
30 | 31 |
31 namespace webrtc { | 32 namespace webrtc { |
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55 TEST(SincResamplerTest, ChunkedResample) { | 56 TEST(SincResamplerTest, ChunkedResample) { |
56 MockSource mock_source; | 57 MockSource mock_source; |
57 | 58 |
58 // Choose a high ratio of input to output samples which will result in quick | 59 // Choose a high ratio of input to output samples which will result in quick |
59 // exhaustion of SincResampler's internal buffers. | 60 // exhaustion of SincResampler's internal buffers. |
60 SincResampler resampler(kSampleRateRatio, SincResampler::kDefaultRequestSize, | 61 SincResampler resampler(kSampleRateRatio, SincResampler::kDefaultRequestSize, |
61 &mock_source); | 62 &mock_source); |
62 | 63 |
63 static const int kChunks = 2; | 64 static const int kChunks = 2; |
64 size_t max_chunk_size = resampler.ChunkSize() * kChunks; | 65 size_t max_chunk_size = resampler.ChunkSize() * kChunks; |
65 rtc::scoped_ptr<float[]> resampled_destination(new float[max_chunk_size]); | 66 std::unique_ptr<float[]> resampled_destination(new float[max_chunk_size]); |
66 | 67 |
67 // Verify requesting ChunkSize() frames causes a single callback. | 68 // Verify requesting ChunkSize() frames causes a single callback. |
68 EXPECT_CALL(mock_source, Run(_, _)) | 69 EXPECT_CALL(mock_source, Run(_, _)) |
69 .Times(1).WillOnce(ClearBuffer()); | 70 .Times(1).WillOnce(ClearBuffer()); |
70 resampler.Resample(resampler.ChunkSize(), resampled_destination.get()); | 71 resampler.Resample(resampler.ChunkSize(), resampled_destination.get()); |
71 | 72 |
72 // Verify requesting kChunks * ChunkSize() frames causes kChunks callbacks. | 73 // Verify requesting kChunks * ChunkSize() frames causes kChunks callbacks. |
73 testing::Mock::VerifyAndClear(&mock_source); | 74 testing::Mock::VerifyAndClear(&mock_source); |
74 EXPECT_CALL(mock_source, Run(_, _)) | 75 EXPECT_CALL(mock_source, Run(_, _)) |
75 .Times(kChunks).WillRepeatedly(ClearBuffer()); | 76 .Times(kChunks).WillRepeatedly(ClearBuffer()); |
76 resampler.Resample(max_chunk_size, resampled_destination.get()); | 77 resampler.Resample(max_chunk_size, resampled_destination.get()); |
77 } | 78 } |
78 | 79 |
79 // Test flush resets the internal state properly. | 80 // Test flush resets the internal state properly. |
80 TEST(SincResamplerTest, Flush) { | 81 TEST(SincResamplerTest, Flush) { |
81 MockSource mock_source; | 82 MockSource mock_source; |
82 SincResampler resampler(kSampleRateRatio, SincResampler::kDefaultRequestSize, | 83 SincResampler resampler(kSampleRateRatio, SincResampler::kDefaultRequestSize, |
83 &mock_source); | 84 &mock_source); |
84 rtc::scoped_ptr<float[]> resampled_destination( | 85 std::unique_ptr<float[]> resampled_destination( |
85 new float[resampler.ChunkSize()]); | 86 new float[resampler.ChunkSize()]); |
86 | 87 |
87 // Fill the resampler with junk data. | 88 // Fill the resampler with junk data. |
88 EXPECT_CALL(mock_source, Run(_, _)) | 89 EXPECT_CALL(mock_source, Run(_, _)) |
89 .Times(1).WillOnce(FillBuffer()); | 90 .Times(1).WillOnce(FillBuffer()); |
90 resampler.Resample(resampler.ChunkSize() / 2, resampled_destination.get()); | 91 resampler.Resample(resampler.ChunkSize() / 2, resampled_destination.get()); |
91 ASSERT_NE(resampled_destination[0], 0); | 92 ASSERT_NE(resampled_destination[0], 0); |
92 | 93 |
93 // Flush and request more data, which should all be zeros now. | 94 // Flush and request more data, which should all be zeros now. |
94 resampler.Flush(); | 95 resampler.Flush(); |
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262 // Source for data to be resampled. | 263 // Source for data to be resampled. |
263 SinusoidalLinearChirpSource resampler_source( | 264 SinusoidalLinearChirpSource resampler_source( |
264 input_rate_, input_samples, input_nyquist_freq, 0); | 265 input_rate_, input_samples, input_nyquist_freq, 0); |
265 | 266 |
266 const double io_ratio = input_rate_ / static_cast<double>(output_rate_); | 267 const double io_ratio = input_rate_ / static_cast<double>(output_rate_); |
267 SincResampler resampler(io_ratio, SincResampler::kDefaultRequestSize, | 268 SincResampler resampler(io_ratio, SincResampler::kDefaultRequestSize, |
268 &resampler_source); | 269 &resampler_source); |
269 | 270 |
270 // Force an update to the sample rate ratio to ensure dyanmic sample rate | 271 // Force an update to the sample rate ratio to ensure dyanmic sample rate |
271 // changes are working correctly. | 272 // changes are working correctly. |
272 rtc::scoped_ptr<float[]> kernel(new float[SincResampler::kKernelStorageSize]); | 273 std::unique_ptr<float[]> kernel(new float[SincResampler::kKernelStorageSize]); |
273 memcpy(kernel.get(), resampler.get_kernel_for_testing(), | 274 memcpy(kernel.get(), resampler.get_kernel_for_testing(), |
274 SincResampler::kKernelStorageSize); | 275 SincResampler::kKernelStorageSize); |
275 resampler.SetRatio(M_PI); | 276 resampler.SetRatio(M_PI); |
276 ASSERT_NE(0, memcmp(kernel.get(), resampler.get_kernel_for_testing(), | 277 ASSERT_NE(0, memcmp(kernel.get(), resampler.get_kernel_for_testing(), |
277 SincResampler::kKernelStorageSize)); | 278 SincResampler::kKernelStorageSize)); |
278 resampler.SetRatio(io_ratio); | 279 resampler.SetRatio(io_ratio); |
279 ASSERT_EQ(0, memcmp(kernel.get(), resampler.get_kernel_for_testing(), | 280 ASSERT_EQ(0, memcmp(kernel.get(), resampler.get_kernel_for_testing(), |
280 SincResampler::kKernelStorageSize)); | 281 SincResampler::kKernelStorageSize)); |
281 | 282 |
282 // TODO(dalecurtis): If we switch to AVX/SSE optimization, we'll need to | 283 // TODO(dalecurtis): If we switch to AVX/SSE optimization, we'll need to |
283 // allocate these on 32-byte boundaries and ensure they're sized % 32 bytes. | 284 // allocate these on 32-byte boundaries and ensure they're sized % 32 bytes. |
284 rtc::scoped_ptr<float[]> resampled_destination(new float[output_samples]); | 285 std::unique_ptr<float[]> resampled_destination(new float[output_samples]); |
285 rtc::scoped_ptr<float[]> pure_destination(new float[output_samples]); | 286 std::unique_ptr<float[]> pure_destination(new float[output_samples]); |
286 | 287 |
287 // Generate resampled signal. | 288 // Generate resampled signal. |
288 resampler.Resample(output_samples, resampled_destination.get()); | 289 resampler.Resample(output_samples, resampled_destination.get()); |
289 | 290 |
290 // Generate pure signal. | 291 // Generate pure signal. |
291 SinusoidalLinearChirpSource pure_source( | 292 SinusoidalLinearChirpSource pure_source( |
292 output_rate_, output_samples, input_nyquist_freq, 0); | 293 output_rate_, output_samples, input_nyquist_freq, 0); |
293 pure_source.Run(output_samples, pure_destination.get()); | 294 pure_source.Run(output_samples, pure_destination.get()); |
294 | 295 |
295 // Range of the Nyquist frequency (0.5 * min(input rate, output_rate)) which | 296 // Range of the Nyquist frequency (0.5 * min(input rate, output_rate)) which |
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380 std::tr1::make_tuple(11025, 192000, kResamplingRMSError, -62.61), | 381 std::tr1::make_tuple(11025, 192000, kResamplingRMSError, -62.61), |
381 std::tr1::make_tuple(16000, 192000, kResamplingRMSError, -63.14), | 382 std::tr1::make_tuple(16000, 192000, kResamplingRMSError, -63.14), |
382 std::tr1::make_tuple(22050, 192000, kResamplingRMSError, -62.42), | 383 std::tr1::make_tuple(22050, 192000, kResamplingRMSError, -62.42), |
383 std::tr1::make_tuple(32000, 192000, kResamplingRMSError, -63.38), | 384 std::tr1::make_tuple(32000, 192000, kResamplingRMSError, -63.38), |
384 std::tr1::make_tuple(44100, 192000, kResamplingRMSError, -62.63), | 385 std::tr1::make_tuple(44100, 192000, kResamplingRMSError, -62.63), |
385 std::tr1::make_tuple(48000, 192000, kResamplingRMSError, -73.44), | 386 std::tr1::make_tuple(48000, 192000, kResamplingRMSError, -73.44), |
386 std::tr1::make_tuple(96000, 192000, kResamplingRMSError, -73.52), | 387 std::tr1::make_tuple(96000, 192000, kResamplingRMSError, -73.52), |
387 std::tr1::make_tuple(192000, 192000, kResamplingRMSError, -73.52))); | 388 std::tr1::make_tuple(192000, 192000, kResamplingRMSError, -73.52))); |
388 | 389 |
389 } // namespace webrtc | 390 } // namespace webrtc |
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