#include?“audioengine.h“
#include?
#include?

extern?“C“{
????#include?
????#include?
????#include?
????#include?
????#include?
????#include?
????#include?
????#include?
}

int?volume?=?128;

struct?Node
{
????char?*?data;
????Node?*?next;
};

QList?dataList;
SDL_mutex?*mutex;


void?packet_queue_init（）
{
????mutex?=?SDL_CreateMutex（）;
}

int?packet_queue_put（QByteArray?array）
{
????SDL_LockMutex（mutex）;
????dataList.append（array）;
????SDL_UnlockMutex（mutex）;
}

static?QByteArray?packet_queue_get（）
{
????SDL_LockMutex（mutex）;

????QByteArray?array;

????if?（!dataList.isEmpty（））
????{
????????array?=?dataList.at（0）;
????????dataList.removeAt（0）;
????}
????SDL_UnlockMutex（mutex）;
????return?array;
}

void?audio_callback（void?*userdata?Uint8?*stream?int?len）
{
????QByteArray?array?=?packet_queue_get（）;
????if?（!array.isEmpty（））
????{
????????SDL_MixAudio（stream（uint8_t?*?）array.data（）array.size（）volume）;
????}
}

const?qint64?BufferDurationUs???????=?10?*?1000000;
const?int????NotifyIntervalMs???????=?100;

AudioEngine::AudioEngine（Qobject?*parent）?:
????Qobject（parent）
????m_audioInputDevice（QAudioDeviceInfo::defaultInputDevice（））
{
????initial（）;
????packet_queue_init（）;
????openSDL（）;

????startRrcording（）;
}

void?AudioEngine::?initial（）
{
????m_format.setFrequency（8000）;
????m_format.setChannels（1）;
????m_format.setSampleSize（16）;
????m_format.setSampleType（QAudioFormat::SignedInt）;
????m_format.setByteOrder（QAudioFormat::LittleEndian）;
????m_format.setCodec（“AUDIO_S16“）;

????QAudioDeviceInfo?info（QAudioDeviceInfo::defaultInputDevice（））;
????if?（!info.isFormatSupported（m_format））
????{
????????m_format?=?info.nearestFormat（m_format）;
????}
????m_audioInput?=?new?QAudioInput（m_audioInputDevice?m_format?this）;

????m_audioInput->setNotifyInterval（512）;
}

void?AudioEngine::startRrcording（）
{

????if?（m_audioInput）
????{
?????????connect（m_audioInput?SIGNAL（notify（））this?SLOT（audioNotify（）））;
?????????m_audioInputIODevice?=?m_audioInput->start（）;
?????????connect（m_audioInputIODevice?SIGNAL（readyRead（））this?SLOT（audioDataReady（）））;
????}
}

void?AudioEngine::audioDataReady（）
{
????QByteArray?array?=?m_audioInputIODevice->readAll（）;
????packet_queue_put（array）;
}

void?AudioEngine::stopRecording（）
{
????if?（m_audioInput）?{
????????m_audioInput->stop（）;
????????QCoreApplication::instance（）->processEvents（）;
????????m_audioInput->disconnect（）;
????}
????m_audioInputIODevice?=?0;
}

bool?AudioEngine::openSDL（）
{
????SDL_LockAudio（）;
????SDL_AudioSpec?spec;
????SDL_AudioSpec?wanted_spec;
????wanted_spec.freq?=?8000;
????wanted_spec.format?=?AUDIO_S16;
????wanted_spec.channels?=?1;
????wanted_spec.silence?=?0;
????wanted_spec.samples?=?256;//SDL_AUDIO_BUFFER_SIZE;
????wanted_

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????3286??2013-02-17?22:23??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\audioengine.cpp

?????文件????????619??2013-02-17?22:22??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\audioengine.h

?????文件????????486??2013-02-16?18:59??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\audiorecord.pro

?????文件????????189??2011-11-03?16:04??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\main.cpp

?????文件????????443??2013-02-17?22:09??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\mainwindow.cpp

?????文件????????423??2011-11-03?17:33??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\mainwindow.h

?????文件????????580??2013-02-16?18:59??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\mainwindow.ui

?????文件???????5230??2012-01-19?14:30??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\SDL\include\begin_code.h

?????文件???????1482??2012-01-19?14:30??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\SDL\include\close_code.h

?????文件??????37206??2012-01-19?14:30??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\SDL\include\doxyfile

?????文件???????3233??2012-01-19?14:30??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\SDL\include\SDL.h

?????文件???????1933??2012-01-19?14:30??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\SDL\include\SDL_active.h

?????文件??????11215??2012-01-19?14:30??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\SDL\include\SDL_audio.h

?????文件????????986??2012-01-19?14:30??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\SDL\include\SDL_byteorder.h

?????文件???????6048??2012-01-19?14:30??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\SDL\include\SDL_cdrom.h

?????文件???????1474??2012-01-19?14:30??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\SDL\include\SDL_config.h

?????文件???????1474??2012-01-19?14:30??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\SDL\include\SDL_config.h.default

?????文件???????7864??2012-01-19?14:30??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\SDL\include\SDL_config.h.in

?????文件???????2803??2012-01-19?14:30??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\SDL\include\SDL_config_dreamcast.h

?????文件???????2801??2012-01-19?14:30??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\SDL\include\SDL_config_macos.h

?????文件???????4193??2012-01-19?14:30??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\SDL\include\SDL_config_macosx.h

?????文件???????1982??2012-01-19?14:30??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\SDL\include\SDL_config_minimal.h

?????文件???????2979??2012-01-19?14:30??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\SDL\include\SDL_config_nds.h

?????文件???????3635??2012-01-19?14:30??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\SDL\include\SDL_config_os2.h

?????文件???????3107??2012-01-19?14:30??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\SDL\include\SDL_config_symbian.h

?????文件???????4574??2012-01-19?14:30??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\SDL\include\SDL_config_win32.h

?????文件????????869??2012-01-19?14:30??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\SDL\include\SDL_copying.h

?????文件???????2221??2012-01-19?14:30??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\SDL\include\SDL_cpuinfo.h

?????文件???????6055??2012-01-19?14:30??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\SDL\include\SDL_endian.h

?????文件???????1874??2012-01-19?14:30??Qt+SDL錄音并實(shí)時(shí)放音（有雜音待解決）\源代碼\audiorecord\SDL\include\SDL_error.h

............此處省略36個(gè)文件信息