#include?“bufferInheritedfromQIODevice.h“

const?qint64?BufferDurationUs???????=?10?*?1000000;??//?10second

Generator::Generator（QByteArray?buffer）
{
????m_GeneratorBuffer?=?buffer;
????m_pos=0;
}

Generator::~Generator（）
{
}

void?Generator::start（）
{
????open（QIODevice::ReadOnly）;
}

void?Generator::stop（）
{
????m_pos?=?0;
????close（）;
}


qint64?Generator::readData（char?*data?qint64?len）
{
????qDebug（）?<????qint64?total?=?0;
????while?（len?-?total?>?0）?{
????????const?qint64?chunk?=?qMin（（m_GeneratorBuffer.size（）?-?m_pos）?len?-?total）;
????????memcpy（data?+?total?m_GeneratorBuffer.constData（）?+?m_pos?chunk）;
????????m_pos?=?（m_pos?+?chunk）?%?m_GeneratorBuffer.size（）;
????????total?+=?chunk;
????????qDebug（）?<????}
????return?total;
}

qint64?Generator::writeData（const?char?*data?qint64?len）
{
????Q_UNUSED（data）;
????Q_UNUSED（len）;

????return?0;
}

qint64?Generator::bytesAvailable（）?const
{
????return?m_GeneratorBuffer.size（）?+?QIODevice::bytesAvailable（）;
}

void?bufferPlayback::startPlayback（）
{
????if?（m_audioOutput）?{
????????m_mode?=?QAudio::AudioOutput;
????????m_dataLengthPlay?=?0;
????????m_generator->start（）;
????????m_audioOutput->start（m_generator）;
????}
}

bufferPlayback::bufferPlayback（）
????:???m_mode（QAudio::AudioInput）
???????m_audioInput（0）
???????m_audioInputDevice（QAudioDeviceInfo::defaultInputDevice（））
???????m_audioInputIODevice（0）
???????m_audioOutputDevice（QAudioDeviceInfo::defaultOutputDevice（））
???????m_audioOutput（0）
???????m_bufferLength（0）
???????m_dataLengthPlay（0）
???????m_dataLengthRecord（0）
{
????selectFormat（）;
????initialize（）;
????QList?inputDevices?=?QAudioDeviceInfo::availableDevices（QAudio::AudioInput）;
????m_audioInputDevice?=?inputDevices.at（0）;
????QList?outputDevices?=?QAudioDeviceInfo::availableDevices（QAudio::AudioOutput）;
????m_audioOutputDevice?=?outputDevices.at（0）;
????QTimer::singleShot（3000?reinterpret_castject*>（this）?SLOT（startPlayback（）））;
????startRecording（）;
????qDebug（）?<????qDebug（）?<
}

bufferPlayback::~bufferPlayback（）
{
????delete?m_audioInput;
????delete?m_audioOutput;
????delete?m_generator;
}

qint64?bufferPlayback::audioLength（const?QAudioFormat?&format?qint64?microSeconds）
{
????qint64?result?=?（format.frequency（）?*?format.channels（）?*?（format.sampleSize（）?/?8））
????????????*?microSeconds?/?1000000;
????result?-=?result?%?（format.channelCount（）?*?format.sampleSize（））;
????return?result;
}

qint64?bufferPlayback::bufferLength（）?const
{
????return?m_bufferLength;
}

void?bufferPlayback::initialize（）
{
????m_bufferLength?=?audioLength（format?BufferDurationUs）;
????m_buffer.resize（m_bufferLength）;
????m_buffer.fill（0）;
????m_audioInput?=?new?QAudioInput（m_audioInputD

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????417??2012-05-08?15:44??3?methods\bufferCircularPlaybackInheritedFromQIODevice\bufferCircularPlaybackInheritedFromQIODevice.pro

?????文件??????46208??2012-07-02?23:33??3?methods\bufferCircularPlaybackInheritedFromQIODevice\bufferCircularPlaybackInheritedFromQIODevice.pro.user

?????文件???????5738??2012-05-13?01:40??3?methods\bufferCircularPlaybackInheritedFromQIODevice\bufferInheritedfromQIODevice.cpp

?????文件???????2043??2012-07-02?23:30??3?methods\bufferCircularPlaybackInheritedFromQIODevice\bufferInheritedfromQIODevice.h

?????文件????????196??2012-05-08?15:32??3?methods\bufferCircularPlaybackInheritedFromQIODevice\main.cpp

?????文件????????654??2012-05-08?15:27??3?methods\bufferCircularPlaybackInheritedFromQIODevice\mainwindow.ui

?????文件???????7331??2012-05-12?01:29??3?methods\inheritedVersion3\inheritedVersion3.cpp

?????文件???????2521??2012-05-12?01:29??3?methods\inheritedVersion3\inheritedVersion3.h

?????文件????????368??2012-07-02?23:33??3?methods\inheritedVersion3\inheritedVersion3.pro

?????文件??????45938??2012-07-02?23:33??3?methods\inheritedVersion3\inheritedVersion3.pro.user

?????文件????????201??2012-07-02?23:32??3?methods\inheritedVersion3\main.cpp

?????文件????????654??2012-05-12?01:19??3?methods\inheritedVersion3\mainwindow.ui

?????文件???????4958??2012-05-21?23:20??3?methods\mybuffer\deployment.pri

?????文件????????182??2012-05-21?23:29??3?methods\mybuffer\main.cpp

?????文件???????5591??2012-05-21?23:29??3?methods\mybuffer\mainwindow.cpp

?????文件???????1455??2012-05-21?23:29??3?methods\mybuffer\mainwindow.h

?????文件????????554??2012-05-21?23:20??3?methods\mybuffer\mainwindow.ui

?????文件????????232??2012-05-21?23:20??3?methods\mybuffer\mybuffer.desktop

?????文件???????1758??2012-05-21?23:33??3?methods\mybuffer\mybuffer.pro

?????文件?????121628??2012-06-02?21:35??3?methods\mybuffer\mybuffer.pro.user

?????文件???????6596??2012-05-21?23:20??3?methods\mybuffer\mybuffer.svg

?????文件???????3400??2012-05-21?23:20??3?methods\mybuffer\mybuffer64.png

?????文件???????4945??2012-05-21?23:20??3?methods\mybuffer\mybuffer80.png

?????文件????????297??2012-05-21?23:20??3?methods\mybuffer\mybuffer_harmattan.desktop

?????文件????????110??2012-05-21?23:20??3?methods\mybuffer\qtc_packaging\debian_fremantle\changelog

?????文件??????????2??2012-05-21?23:20??3?methods\mybuffer\qtc_packaging\debian_fremantle\compat

?????文件???????4908??2012-05-21?23:20??3?methods\mybuffer\qtc_packaging\debian_fremantle\control

?????文件???????1371??2012-05-21?23:20??3?methods\mybuffer\qtc_packaging\debian_fremantle\copyright

?????文件????????138??2012-05-21?23:20??3?methods\mybuffer\qtc_packaging\debian_fremantle\README

?????文件???????1933??2012-05-21?23:20??3?methods\mybuffer\qtc_packaging\debian_fremantle\rules

............此處省略18個文件信息