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| 1 /* | 1 /* |
| 2 * Copyright (C) 2010, Google Inc. All rights reserved. | 2 * Copyright (C) 2010, 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 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
| 8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
| 10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
| (...skipping 37 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 48 { | 48 { |
| 49 // Safe to call the uninitialize() because it's final. | 49 // Safe to call the uninitialize() because it's final. |
| 50 uninitialize(); | 50 uninitialize(); |
| 51 } | 51 } |
| 52 | 52 |
| 53 void AudioBasicProcessorHandler::initialize() | 53 void AudioBasicProcessorHandler::initialize() |
| 54 { | 54 { |
| 55 if (isInitialized()) | 55 if (isInitialized()) |
| 56 return; | 56 return; |
| 57 | 57 |
| 58 ASSERT(processor()); | 58 DCHECK(processor()); |
| 59 processor()->initialize(); | 59 processor()->initialize(); |
| 60 | 60 |
| 61 AudioHandler::initialize(); | 61 AudioHandler::initialize(); |
| 62 } | 62 } |
| 63 | 63 |
| 64 void AudioBasicProcessorHandler::uninitialize() | 64 void AudioBasicProcessorHandler::uninitialize() |
| 65 { | 65 { |
| 66 if (!isInitialized()) | 66 if (!isInitialized()) |
| 67 return; | 67 return; |
| 68 | 68 |
| 69 ASSERT(processor()); | 69 DCHECK(processor()); |
| 70 processor()->uninitialize(); | 70 processor()->uninitialize(); |
| 71 | 71 |
| 72 AudioHandler::uninitialize(); | 72 AudioHandler::uninitialize(); |
| 73 } | 73 } |
| 74 | 74 |
| 75 void AudioBasicProcessorHandler::process(size_t framesToProcess) | 75 void AudioBasicProcessorHandler::process(size_t framesToProcess) |
| 76 { | 76 { |
| 77 AudioBus* destinationBus = output(0).bus(); | 77 AudioBus* destinationBus = output(0).bus(); |
| 78 | 78 |
| 79 if (!isInitialized() || !processor() || processor()->numberOfChannels() != n
umberOfChannels()) { | 79 if (!isInitialized() || !processor() || processor()->numberOfChannels() != n
umberOfChannels()) { |
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| 94 { | 94 { |
| 95 // Render input stream - suggest to the input to render directly into output
bus for in-place processing in process() if possible. | 95 // Render input stream - suggest to the input to render directly into output
bus for in-place processing in process() if possible. |
| 96 input(0).pull(output(0).bus(), framesToProcess); | 96 input(0).pull(output(0).bus(), framesToProcess); |
| 97 } | 97 } |
| 98 | 98 |
| 99 // As soon as we know the channel count of our input, we can lazily initialize. | 99 // As soon as we know the channel count of our input, we can lazily initialize. |
| 100 // Sometimes this may be called more than once with different channel counts, in
which case we must safely | 100 // Sometimes this may be called more than once with different channel counts, in
which case we must safely |
| 101 // uninitialize and then re-initialize with the new channel count. | 101 // uninitialize and then re-initialize with the new channel count. |
| 102 void AudioBasicProcessorHandler::checkNumberOfChannelsForInput(AudioNodeInput* i
nput) | 102 void AudioBasicProcessorHandler::checkNumberOfChannelsForInput(AudioNodeInput* i
nput) |
| 103 { | 103 { |
| 104 ASSERT(context()->isAudioThread()); | 104 DCHECK(context()->isAudioThread()); |
| 105 ASSERT(context()->isGraphOwner()); | 105 ASSERT(context()->isGraphOwner()); |
| 106 | 106 |
| 107 ASSERT(input == &this->input(0)); | 107 DCHECK_EQ(input, &this->input(0)); |
| 108 if (input != &this->input(0)) | 108 if (input != &this->input(0)) |
| 109 return; | 109 return; |
| 110 | 110 |
| 111 ASSERT(processor()); | 111 DCHECK(processor()); |
| 112 if (!processor()) | 112 if (!processor()) |
| 113 return; | 113 return; |
| 114 | 114 |
| 115 unsigned numberOfChannels = input->numberOfChannels(); | 115 unsigned numberOfChannels = input->numberOfChannels(); |
| 116 | 116 |
| 117 if (isInitialized() && numberOfChannels != output(0).numberOfChannels()) { | 117 if (isInitialized() && numberOfChannels != output(0).numberOfChannels()) { |
| 118 // We're already initialized but the channel count has changed. | 118 // We're already initialized but the channel count has changed. |
| 119 uninitialize(); | 119 uninitialize(); |
| 120 } | 120 } |
| 121 | 121 |
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| 141 return m_processor->tailTime(); | 141 return m_processor->tailTime(); |
| 142 } | 142 } |
| 143 | 143 |
| 144 double AudioBasicProcessorHandler::latencyTime() const | 144 double AudioBasicProcessorHandler::latencyTime() const |
| 145 { | 145 { |
| 146 return m_processor->latencyTime(); | 146 return m_processor->latencyTime(); |
| 147 } | 147 } |
| 148 | 148 |
| 149 } // namespace blink | 149 } // namespace blink |
| 150 | 150 |
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