#include?“audioplaythread.h“
#include?
#include?


const?int?BufferSize?=?44100?*?10000;
int?iCurrentRead?=?0;
int?iCurrentWrite?=?0;
char?buffer[BufferSize];

QSemaphore?freeBytes（BufferSize）;
QSemaphore?usedBytes;

AudioPlayThread::AudioPlayThread（Qobject?*parent）:
????QThread?（parent）
????m_audioOutput（nullptr）
????m_audioOutDevice（nullptr）
????m_buf（nullptr）
????m_index（0）
{
????initializeAudio（QAudioDeviceInfo::defaultOutputDevice（））;

}

void?AudioPlayThread::updateAudioData（QByteArray?audio）
{
????int?out_buffer_size?=?audio.size（）;
????if（freeBytes.tryAcquire（out_buffer_size））{

????????memcpy（buffer?+?iCurrentWrite?audio.constData（）?out_buffer_size）;
????????iCurrentWrite?+=?out_buffer_size;

????????iCurrentWrite?=?iCurrentWrite?%?BufferSize;
????????usedBytes.release（out_buffer_size）;
????}

}

void?AudioPlayThread::run（）
{
????while?（1）?{

#if?0
????????QByteArray?buffer（32768?0）;
????????int?chunks?=?m_audioOutput->bytesFree（）?/?m_audioOutput->periodSize（）;
????????while?（chunks）?{
???????????const?qint64?len?=?m_generator->read（buffer.data（）?m_audioOutput->periodSize（））;
???????????if?（len）
???????????????io->write（buffer.data（）?len）;
???????????if?（len?!=?m_audioOutput->periodSize（））
???????????????break;
???????????--chunks;
????????}
#endif

????????int?chunks?=?m_audioOutput->bytesFree（）?/?m_audioOutput->periodSize（）;
????????while?（chunks）?{
????????????int?len?=?m_audioOutput->periodSize（）;
????????????if（usedBytes.tryAcquire（len））{




????????????????m_audioOutDevice->write（buffer?+?iCurrentRead?len）;

????????????????iCurrentRead?+=?len;

????????????????iCurrentRead?=?iCurrentRead?%?BufferSize;
????????????????freeBytes.release（）;
????????????}

???????????--chunks;
????????}

????}
}

void?AudioPlayThread::initializeAudio（const?QAudioDeviceInfo?&deviceInfo）
{
????if（m_audioOutput）{
????????m_audioOutput->stop（）;
????????delete??m_audioOutput;
????????m_audioOutput?=?nullptr;
????}

????if（m_audioOutDevice）{
????????m_audioOutDevice->close（）;
????????delete??m_audioOutDevice;
????????m_audioOutDevice?=?nullptr;
????}


????QAudioFormat?format;
????format.setSampleRate（44100）;
????format.setChannelCount（2）;
????format.setSampleSize（16）;
????format.setCodec（“audio/pcm“）;
????format.setByteOrder（QAudioFormat::LittleEndian）;
????format.setSampleType（QAudioFormat::SignedInt）;

????if?（!deviceInfo.isFormatSupported（format））?{
????????qWarning（）?<????????format?=?deviceInfo.nearestFormat（format）;
????}

????m_audioOutput?=?new?QAudioOutput（deviceInfo?format）;

????m_audioOutDevice?=?m_audioOutput->start（）;

//????m_pcmStream?=?new?PcmStream（）;
//????m_pcmStream->start（）;

????int?bf?=?m_audioOutput->bytesFree（）;
????if（!m_buf）{
????????m_buf?=?new?char[bf?*?2000];
????}

????memset（m_buf?0?bf?*?2000）;
????m_index?=?0;
}

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

?????文件????????270??2019-08-27?21:43??LocalPlayer\.gitignore

?????文件????????746??2021-01-06?17:14??LocalPlayer\.qmake.stash

?????文件???????2880??2019-08-27?21:43??LocalPlayer\audioplaythread.cpp

?????文件????????534??2019-08-27?21:43??LocalPlayer\audioplaythread.h

?????文件?????510864??2021-01-06?17:14??LocalPlayer\audioplaythread.o

?????文件??????10248??2021-01-26?16:50??LocalPlayer\avdemuxthread.cpp

?????文件???????1025??2021-01-11?11:17??LocalPlayer\avdemuxthread.h

?????文件?????640424??2021-01-08?18:19??LocalPlayer\avdemuxthread.o

?????文件???????3629??2021-01-12?18:23??LocalPlayer\avmessagequeue.cpp

?????文件???????1391??2021-01-12?16:50??LocalPlayer\avmessagequeue.h

?????文件????????854??2021-01-08?17:04??LocalPlayer\avplayer.cpp

?????文件????????380??2019-08-27?21:43??LocalPlayer\avplayer.h

?????文件?????534152??2021-01-08?18:18??LocalPlayer\avplayer.o

?????文件???????2571??2021-01-12?16:53??LocalPlayer\framequeue.cpp

?????文件???????1106??2021-01-12?16:48??LocalPlayer\framequeue.h

?????文件????????637??2021-01-08?16:56??LocalPlayer\imagedispaly.cpp

?????文件????????332??2019-08-27?21:43??LocalPlayer\imagedispaly.h

?????文件?????824600??2021-01-08?16:56??LocalPlayer\imagedispaly.o

?????文件??????35149??2019-08-27?21:43??LocalPlayer\LICENSE

?????文件????????360??2021-01-26?16:50??LocalPlayer\main.cpp

?????文件?????814296??2021-01-08?18:18??LocalPlayer\main.o

?????文件???????1682??2019-08-27?21:43??LocalPlayer\mainwindow.cpp

?????文件????????463??2019-08-27?21:43??LocalPlayer\mainwindow.h

?????文件?????877872??2021-01-06?17:14??LocalPlayer\mainwindow.o

?????文件???????1973??2019-08-27?21:43??LocalPlayer\mainwindow.ui

?????文件??????35986??2021-01-06?17:14??LocalPlayer\Makefile

?????文件???????4817??2021-01-08?18:18??LocalPlayer\moc_avdemuxthread.cpp

?????文件?????578704??2021-01-08?18:18??LocalPlayer\moc_avdemuxthread.o

?????文件???????2565??2021-01-08?18:18??LocalPlayer\moc_avplayer.cpp

?????文件?????688552??2021-01-08?18:18??LocalPlayer\moc_avplayer.o

............此處省略14個文件信息