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XAudioThread.cpp
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XAudioThread.cpp
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#include "XAudioThread.h"
#include "XDecode.h"
#include "XAudioPlay.h"
#include "XResample.h"
#include <iostream>
using namespace std;
XAudioThread::XAudioThread()
{
if ( !res ) res = new XResample();
if ( !ap ) ap = XAudioPlay::get();
}
XAudioThread::~XAudioThread() {
}
void XAudioThread::run() {
cout << "XAudioThread::run" << endl;
unsigned char *pcm = new unsigned char[1024 * 1024 * 10];
while (!isExit) {
amux.lock();
// 没有数据
// if ( packs.empty() || !decode || !res || !ap ) {
// amux.unlock();
// msleep(1);
// continue;
// }
// AVPacket *pkt = packs.front();
// packs.pop_front();
if ( isPause ) {
amux.unlock();
msleep(5);
continue;
}
AVPacket *pkt = pop();
bool re = decode->send(pkt);
if ( !re ) {
amux.unlock();
msleep(1);
continue;
}
// 一次send 多次recv
while (!isExit) {
AVFrame *frame = decode->recv();
if ( !frame ) {
break;
}
// 减去缓冲中未播放的时间 毫秒
pts = decode->pts - ap->getNoPlayMs();
cout << "audio pts = " << pts << endl;
// 重采样
int size = res->resample(frame, pcm);
// 播放音频
while (!isExit) {
if ( size <= 0 ) break;
// 缓冲未播放完,空间不够
if ( ap->getFree() < size || isPause ) {
msleep(1);
continue;
}
ap->write(pcm, size);
break;
}
}
amux.unlock();
}
delete []pcm;
cout << "XAudioThread::run---end" << endl;
}
// 打开,不管成功与否都清理
bool XAudioThread::open(AVCodecParameters *para, int sampleRate, int channels) {
if ( !para ) {
return false;
}
amux.lock();
// 清理队列
clear();
pts = 0;
bool re = true;
if ( !res->open(para, false) ) {
// amux.unlock();
cout << "res->open failed" << endl;
// return false;
re = false;
}
ap->sampleRate = sampleRate;
ap->channels = channels;
if ( !ap->open() ) {
// amux.unlock();
cout << "ap->open failed" << endl;
// return false;
re = false;
}
if ( !decode->open(para) ) {
cout << "audio decode->open failed" << endl;
re = false;
}
amux.unlock();
cout << "XAudioThread::open success!: " << re << endl;
return re;
}
void XAudioThread::setPause(bool isPause) {
// amux.lock();
this->isPause = isPause;
if ( ap ) {
ap->setPause(isPause);
}
// amux.unlock();
}
void XAudioThread::clear() {
XDecodeThread::clear();
amux.lock();
if ( ap ) ap->clear();
amux.unlock();
}
// 停止线程,清理资源
void XAudioThread::close() {
XDecodeThread::close();
if ( res ) {
res->close();
amux.lock();
delete res;
res = NULL;
amux.unlock();
}
if ( ap ) {
ap->close();
amux.lock();
ap = NULL;
amux.unlock();
}
}