1 /* 2 * Copyright (C) 2010 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 14 * its contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef AudioFileReaderMac_h 30 #define AudioFileReaderMac_h 31 32 #include <AudioToolbox/AudioFile.h> 33 #include <AudioToolbox/ExtendedAudioFile.h> 34 #include <wtf/PassOwnPtr.h> 35 36 namespace WebCore { 37 38 class AudioBus; 39 40 // Wrapper class for AudioFile and ExtAudioFile CoreAudio APIs for reading files and in-memory versions of them... 41 42 class AudioFileReader { 43 public: 44 AudioFileReader(const char* filePath); 45 AudioFileReader(const void* data, size_t dataSize); 46 ~AudioFileReader(); 47 48 // Returns 0 if error 49 PassOwnPtr<AudioBus> createBus(double sampleRate, bool mixToMono); 50 51 const void* data() const { return m_data; } 52 size_t dataSize() const { return m_dataSize; } 53 54 private: 55 static OSStatus readProc(void* clientData, SInt64 position, UInt32 requestCount, void* buffer, UInt32* actualCount); 56 static SInt64 getSizeProc(void* clientData); 57 58 const void* m_data; 59 size_t m_dataSize; 60 const char* m_filePath; 61 62 AudioFileID m_audioFileID; 63 ExtAudioFileRef m_extAudioFileRef; 64 65 AudioStreamBasicDescription m_fileDataFormat; 66 AudioStreamBasicDescription m_clientDataFormat; 67 }; 68 69 } // namespace WebCore 70 71 #endif // AudioFileReaderMac_h 72
