annotate data/fileio/CoreAudioFileReader.cpp @ 749:0f8a6dda8ac1

Tidy
author Chris Cannam
date Mon, 03 Sep 2012 11:10:51 +0100
parents c8ab5f63360d
children dc6c0e50724c
rev   line source
luisf@665 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
luisf@665 2
luisf@665 3 /*
luisf@665 4 Sonic Visualiser
luisf@665 5 An audio file viewer and annotation editor.
luisf@665 6 Centre for Digital Music, Queen Mary, University of London.
Chris@748 7 This file copyright 2006-2012 Chris Cannam and QMUL.
luisf@665 8
luisf@665 9 This program is free software; you can redistribute it and/or
luisf@665 10 modify it under the terms of the GNU General Public License as
luisf@665 11 published by the Free Software Foundation; either version 2 of the
luisf@665 12 License, or (at your option) any later version. See the file
luisf@665 13 COPYING included with this distribution for more information.
luisf@665 14 */
luisf@665 15
luisf@665 16 #ifdef HAVE_COREAUDIO
luisf@665 17
luisf@665 18 #include "CoreAudioFileReader.h"
luisf@665 19 #include "base/Profiler.h"
luisf@665 20 #include "base/ProgressReporter.h"
luisf@665 21 #include "system/System.h"
luisf@665 22
luisf@665 23 #include <QFileInfo>
luisf@665 24
luisf@665 25 #if !defined(__COREAUDIO_USE_FLAT_INCLUDES__)
luisf@665 26 #include <AudioToolbox/AudioToolbox.h>
Chris@743 27 #include <AudioToolbox/ExtendedAudioFile.h>
luisf@665 28 #else
luisf@665 29 #include "AudioToolbox.h"
luisf@665 30 #include "ExtendedAudioFile.h"
luisf@665 31 #endif
luisf@665 32
luisf@665 33 class CoreAudioFileReader::D
luisf@665 34 {
luisf@665 35 public:
Chris@743 36 D() : blockSize(1024) { }
luisf@665 37
Chris@743 38 ExtAudioFileRef file;
Chris@743 39 AudioBufferList buffer;
Chris@743 40 OSStatus err;
Chris@743 41 AudioStreamBasicDescription asbd;
Chris@743 42 int blockSize;
luisf@665 43 };
luisf@665 44
Chris@743 45 static QString
Chris@743 46 codestr(OSStatus err)
Chris@743 47 {
Chris@743 48 char text[5];
Chris@743 49 UInt32 uerr = err;
Chris@743 50 text[0] = (uerr >> 24) & 0xff;
Chris@743 51 text[1] = (uerr >> 16) & 0xff;
Chris@743 52 text[2] = (uerr >> 8) & 0xff;
Chris@743 53 text[3] = (uerr) & 0xff;
Chris@743 54 text[4] = '\0';
Chris@743 55 return QString("%1 (%2)").arg(err).arg(QString::fromAscii(text));
Chris@743 56 }
luisf@665 57
luisf@665 58 CoreAudioFileReader::CoreAudioFileReader(FileSource source,
Chris@743 59 DecodeMode decodeMode,
Chris@743 60 CacheMode mode,
Chris@743 61 size_t targetRate,
Chris@743 62 ProgressReporter *reporter) :
luisf@665 63 CodedAudioFileReader(mode, targetRate),
luisf@665 64 m_source(source),
luisf@665 65 m_path(source.getLocalFilename()),
luisf@665 66 m_d(new D),
luisf@665 67 m_reporter(reporter),
luisf@665 68 m_cancelled(false),
luisf@665 69 m_completion(0),
luisf@665 70 m_decodeThread(0)
luisf@665 71 {
Chris@743 72 m_channelCount = 0;
Chris@743 73 m_fileRate = 0;
luisf@665 74
Chris@743 75 Profiler profiler("CoreAudioFileReader::CoreAudioFileReader", true);
luisf@665 76
Chris@743 77 std::cerr << "CoreAudioFileReader: path is \"" << m_path.toStdString() << "\"" << std::endl;
luisf@665 78
Chris@743 79 QByteArray ba = m_path.toLocal8Bit();
luisf@665 80
Chris@743 81 CFURLRef url = CFURLCreateFromFileSystemRepresentation
Chris@743 82 (kCFAllocatorDefault,
Chris@743 83 (const UInt8 *)ba.data(),
Chris@743 84 (CFIndex)ba.length(),
Chris@743 85 false);
luisf@665 86
Chris@743 87 //!!! how do we find out if the file open fails because of DRM protection?
luisf@665 88
Chris@743 89 #if (MACOSX_DEPLOYMENT_TARGET <= 1040 && MAC_OS_X_VERSION_MIN_REQUIRED <= 1040)
Chris@743 90 FSRef fsref;
Chris@743 91 if (!CFURLGetFSRef(url, &fsref)) { // returns Boolean, not error code
Chris@743 92 m_error = "CoreAudioReadStream: Error looking up FS ref (file not found?)";
Chris@743 93 return;
Chris@743 94 }
Chris@743 95 m_d->err = ExtAudioFileOpen(&fsref, &m_d->file);
Chris@743 96 #else
Chris@743 97 m_d->err = ExtAudioFileOpenURL(url, &m_d->file);
Chris@743 98 #endif
luisf@665 99
Chris@743 100 CFRelease(url);
luisf@665 101
Chris@743 102 if (m_d->err) {
Chris@743 103 m_error = "CoreAudioReadStream: Error opening file: code " + codestr(m_d->err);
Chris@743 104 return;
Chris@743 105 }
Chris@743 106 if (!m_d->file) {
Chris@743 107 m_error = "CoreAudioReadStream: Failed to open file, but no error reported!";
Chris@743 108 return;
Chris@743 109 }
Chris@743 110
Chris@743 111 UInt32 propsize = sizeof(AudioStreamBasicDescription);
Chris@743 112 m_d->err = ExtAudioFileGetProperty
Chris@743 113 (m_d->file, kExtAudioFileProperty_FileDataFormat, &propsize, &m_d->asbd);
Chris@743 114
Chris@743 115 if (m_d->err) {
Chris@743 116 m_error = "CoreAudioReadStream: Error in getting basic description: code " + codestr(m_d->err);
Chris@743 117 return;
Chris@743 118 }
Chris@743 119
Chris@743 120 m_channelCount = m_d->asbd.mChannelsPerFrame;
Chris@743 121 m_sampleRate = m_d->asbd.mSampleRate;
luisf@665 122
Chris@743 123 std::cerr << "CoreAudioReadStream: " << m_channelCount << " channels, " << m_sampleRate << " Hz" << std::endl;
luisf@665 124
Chris@743 125 m_d->asbd.mSampleRate = getSampleRate();
luisf@665 126
Chris@743 127 m_d->asbd.mFormatID = kAudioFormatLinearPCM;
Chris@743 128 m_d->asbd.mFormatFlags =
Chris@743 129 kAudioFormatFlagIsFloat |
Chris@743 130 kAudioFormatFlagIsPacked |
Chris@743 131 kAudioFormatFlagsNativeEndian;
Chris@743 132 m_d->asbd.mBitsPerChannel = sizeof(float) * 8;
Chris@743 133 m_d->asbd.mBytesPerFrame = sizeof(float) * m_channelCount;
Chris@743 134 m_d->asbd.mBytesPerPacket = sizeof(float) * m_channelCount;
Chris@743 135 m_d->asbd.mFramesPerPacket = 1;
Chris@743 136 m_d->asbd.mReserved = 0;
Chris@743 137
Chris@743 138 m_d->err = ExtAudioFileSetProperty
Chris@743 139 (m_d->file, kExtAudioFileProperty_ClientDataFormat, propsize, &m_d->asbd);
Chris@743 140
Chris@743 141 if (m_d->err) {
Chris@743 142 m_error = "CoreAudioReadStream: Error in setting client format: code " + codestr(m_d->err);
Chris@743 143 return;
Chris@743 144 }
luisf@665 145
Chris@743 146 m_d->buffer.mNumberBuffers = 1;
Chris@743 147 m_d->buffer.mBuffers[0].mNumberChannels = m_channelCount;
Chris@743 148 m_d->buffer.mBuffers[0].mDataByteSize = sizeof(float) * m_channelCount * m_d->blockSize;
Chris@743 149 m_d->buffer.mBuffers[0].mData = new float[m_channelCount * m_d->blockSize];
luisf@665 150
Chris@743 151 initialiseDecodeCache();
luisf@665 152
Chris@743 153 if (m_reporter) {
Chris@743 154 connect(m_reporter, SIGNAL(cancelled()), this, SLOT(cancelled()));
Chris@743 155 m_reporter->setMessage
Chris@743 156 (tr("Decoding %1...").arg(QFileInfo(m_path).fileName()));
Chris@743 157 }
luisf@665 158
Chris@743 159 while (1) {
luisf@665 160
Chris@743 161 UInt32 framesRead = m_d->blockSize;
Chris@743 162 m_d->err = ExtAudioFileRead(m_d->file, &framesRead, &m_d->buffer);
luisf@665 163
Chris@743 164 if (m_d->err) {
Chris@743 165 m_error = QString("Error in CoreAudio decoding: code %1")
Chris@743 166 .arg(m_d->err);
Chris@743 167 break;
Chris@743 168 }
luisf@665 169
Chris@743 170 //!!! progress?
luisf@665 171
Chris@743 172 // std::cerr << "Read " << framesRead << " frames (block size " << m_d->blockSize << ")" << std::endl;
luisf@665 173
Chris@743 174 // buffers are interleaved unless specified otherwise
Chris@743 175 addSamplesToDecodeCache((float *)m_d->buffer.mBuffers[0].mData, framesRead);
luisf@665 176
Chris@743 177 if (framesRead < m_d->blockSize) break;
Chris@743 178 }
luisf@665 179
Chris@743 180 finishDecodeCache();
Chris@743 181 endSerialised();
luisf@665 182
Chris@743 183 m_completion = 100;
luisf@665 184
Chris@743 185 ExtAudioFileDispose(m_d->file);
luisf@665 186 }
luisf@665 187
luisf@665 188
luisf@665 189 CoreAudioFileReader::~CoreAudioFileReader()
luisf@665 190 {
Chris@743 191 std::cerr << "CoreAudioFileReader::~CoreAudioFileReader" << std::endl;
Chris@743 192 delete[] m_d->buffer.mBuffers[0].mData;
Chris@743 193 delete m_d;
luisf@665 194 }
luisf@665 195
luisf@665 196 void
luisf@665 197 CoreAudioFileReader::cancelled()
luisf@665 198 {
luisf@665 199 m_cancelled = true;
luisf@665 200 }
luisf@665 201
luisf@665 202 void
luisf@665 203 CoreAudioFileReader::getSupportedExtensions(std::set<QString> &extensions)
luisf@665 204 {
Chris@743 205 extensions.insert("aiff");
Chris@743 206 extensions.insert("aif");
Chris@743 207 extensions.insert("au");
Chris@743 208 extensions.insert("m4a");
Chris@743 209 extensions.insert("m4b");
Chris@743 210 extensions.insert("m4p");
Chris@743 211 extensions.insert("mp3");
Chris@743 212 extensions.insert("mp4");
Chris@743 213 extensions.insert("wav");
luisf@665 214 }
luisf@665 215
luisf@665 216 bool
luisf@665 217 CoreAudioFileReader::supportsExtension(QString extension)
luisf@665 218 {
Chris@743 219 std::set<QString> extensions;
Chris@743 220 getSupportedExtensions(extensions);
Chris@743 221 return (extensions.find(extension.toLower()) != extensions.end());
luisf@665 222 }
luisf@665 223
luisf@665 224 bool
luisf@665 225 CoreAudioFileReader::supportsContentType(QString type)
luisf@665 226 {
Chris@743 227 return (type == "audio/x-aiff" ||
Chris@743 228 type == "audio/x-wav" ||
Chris@743 229 type == "audio/mpeg" ||
Chris@743 230 type == "audio/basic" ||
Chris@749 231 type == "audio/x-aac");
luisf@665 232 }
luisf@665 233
luisf@665 234 bool
luisf@665 235 CoreAudioFileReader::supports(FileSource &source)
luisf@665 236 {
Chris@743 237 return (supportsExtension(source.getExtension()) ||
Chris@743 238 supportsContentType(source.getContentType()));
luisf@665 239 }
luisf@665 240
luisf@665 241 #endif
luisf@665 242