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Side by Side Diff: third_party/WebKit/Source/platform/audio/SincResampler.cpp

Issue 2803733002: Convert ASSERT(foo) to DCHECK(foo) in platform/audio (Closed)
Patch Set: Mechanical change from ASSERT(foo) to DCHECK(foo) Created 3 years, 8 months ago
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1 /* 1 /*
2 * Copyright (C) 2011 Google Inc. All rights reserved. 2 * Copyright (C) 2011 Google Inc. All rights reserved.
3 * 3 *
4 * Redistribution and use in source and binary forms, with or without 4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions 5 * modification, are permitted provided that the following conditions
6 * are met: 6 * are met:
7 * 7 *
8 * 1. Redistributions of source code must retain the above copyright 8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer. 9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright 10 * 2. Redistributions in binary form must reproduce the above copyright
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125 a2 * std::cos(twoPiDouble * 2.0 * x); 125 a2 * std::cos(twoPiDouble * 2.0 * x);
126 126
127 // Window the sinc() function and store at the correct offset. 127 // Window the sinc() function and store at the correct offset.
128 m_kernelStorage[i + offsetIndex * m_kernelSize] = sinc * window; 128 m_kernelStorage[i + offsetIndex * m_kernelSize] = sinc * window;
129 } 129 }
130 } 130 }
131 } 131 }
132 132
133 void SincResampler::consumeSource(float* buffer, 133 void SincResampler::consumeSource(float* buffer,
134 unsigned numberOfSourceFrames) { 134 unsigned numberOfSourceFrames) {
135 ASSERT(m_sourceProvider); 135 DCHECK(m_sourceProvider);
136 if (!m_sourceProvider) 136 if (!m_sourceProvider)
137 return; 137 return;
138 138
139 // Wrap the provided buffer by an AudioBus for use by the source provider. 139 // Wrap the provided buffer by an AudioBus for use by the source provider.
140 RefPtr<AudioBus> bus = AudioBus::create(1, numberOfSourceFrames, false); 140 RefPtr<AudioBus> bus = AudioBus::create(1, numberOfSourceFrames, false);
141 141
142 // FIXME: Find a way to make the following const-correct: 142 // FIXME: Find a way to make the following const-correct:
143 bus->setChannelMemory(0, buffer, numberOfSourceFrames); 143 bus->setChannelMemory(0, buffer, numberOfSourceFrames);
144 144
145 m_sourceProvider->provideInput(bus.get(), numberOfSourceFrames); 145 m_sourceProvider->provideInput(bus.get(), numberOfSourceFrames);
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200 remaining -= framesThisTime; 200 remaining -= framesThisTime;
201 } 201 }
202 } 202 }
203 203
204 void SincResampler::process(AudioSourceProvider* sourceProvider, 204 void SincResampler::process(AudioSourceProvider* sourceProvider,
205 float* destination, 205 float* destination,
206 size_t framesToProcess) { 206 size_t framesToProcess) {
207 bool isGood = sourceProvider && m_blockSize > m_kernelSize && 207 bool isGood = sourceProvider && m_blockSize > m_kernelSize &&
208 m_inputBuffer.size() >= m_blockSize + m_kernelSize && 208 m_inputBuffer.size() >= m_blockSize + m_kernelSize &&
209 !(m_kernelSize % 2); 209 !(m_kernelSize % 2);
210 ASSERT(isGood); 210 DCHECK(isGood);
211 if (!isGood) 211 if (!isGood)
212 return; 212 return;
213 213
214 m_sourceProvider = sourceProvider; 214 m_sourceProvider = sourceProvider;
215 215
216 unsigned numberOfDestinationFrames = framesToProcess; 216 unsigned numberOfDestinationFrames = framesToProcess;
217 217
218 // Setup various region pointers in the buffer (see diagram above). 218 // Setup various region pointers in the buffer (see diagram above).
219 float* r0 = m_inputBuffer.data() + m_kernelSize / 2; 219 float* r0 = m_inputBuffer.data() + m_kernelSize / 2;
220 float* r1 = m_inputBuffer.data(); 220 float* r1 = m_inputBuffer.data();
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474 memcpy(r1, r3, sizeof(float) * (m_kernelSize / 2)); 474 memcpy(r1, r3, sizeof(float) * (m_kernelSize / 2));
475 memcpy(r2, r4, sizeof(float) * (m_kernelSize / 2)); 475 memcpy(r2, r4, sizeof(float) * (m_kernelSize / 2));
476 476
477 // Step (4) 477 // Step (4)
478 // Refresh the buffer with more input. 478 // Refresh the buffer with more input.
479 consumeSource(r5, m_blockSize); 479 consumeSource(r5, m_blockSize);
480 } 480 }
481 } 481 }
482 482
483 } // namespace blink 483 } // namespace blink
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