qt_demoe/video/playvlc/vlc/vlc.cpp

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#include "vlc.h"
VlcThread::VlcThread(QObject *parent) : QThread(parent)
{
setObjectName("VlcThread");
stopped = false;
isPlay = false;
url = "rtsp://192.168.1.200:554/1";
vlcInst = NULL;
vlcMedia = NULL;
vlcPlayer = NULL;
static bool isInit = false;
if (!isInit) {
isInit = true;
qDebug() << TIMEMS << "init vlc lib ok" << " version:" << libvlc_get_version();
}
}
void VlcThread::run()
{
while (!stopped) {
msleep(1);
}
//线程结束后释放资源
free();
stopped = false;
isPlay = false;
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//qDebug() << TIMEMS << "stop vlc1 thread";
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}
void VlcThread::setUrl(const QString &url)
{
this->url = url;
}
void VlcThread::setOption(const QString &option)
{
if (vlcMedia != NULL) {
QByteArray data = option.toUtf8();
const char *arg = data.constData();
libvlc_media_add_option(vlcMedia, arg);
}
}
bool VlcThread::init()
{
const char *tempArg = "";
const char *vlc_args[9] = {"-I", "dummy", "--no-osd", "--no-stats", "--ignore-config", "--no-video-on-top", "--no-video-title-show", "--no-snapshot-preview", tempArg};
vlcInst = libvlc_new(sizeof(vlc_args) / sizeof(vlc_args[0]), vlc_args);
if (vlcInst == NULL) {
return false;
}
vlcMedia = libvlc_media_new_location(vlcInst, url.toUtf8().constData());
vlcPlayer = libvlc_media_player_new_from_media(vlcMedia);
if (vlcPlayer == NULL) {
return false;
}
//设置播放句柄
VlcWidget *w = (VlcWidget *)this->parent();
#if defined(Q_OS_WIN)
libvlc_media_player_set_hwnd(vlcPlayer, (void *)w->winId());
#elif defined(Q_OS_LINUX)
libvlc_media_player_set_xwindow(vlcPlayer, w->winId());
#elif defined(Q_OS_MAC)
libvlc_media_player_set_nsobject(vlcPlayer, (void *)w->winId());
#endif
//设置硬件加速 none auto any d3d11va dxva2
setOption(QString(":avcodec-hw=%1").arg("none"));
//设置通信协议 tcp udp
setOption(QString(":rtsp-%1").arg("tcp"));
//设置缓存时间 默认500毫秒
setOption(QString(":network-caching=%1").arg(300));
libvlc_media_player_play(vlcPlayer);
//qDebug() << TIMEMS << "init vlc finsh";
return true;
}
void VlcThread::play()
{
isPlay = true;
this->init();
}
void VlcThread::pause()
{
if (vlcPlayer != NULL) {
libvlc_media_player_pause(vlcPlayer);
}
}
void VlcThread::next()
{
if (vlcPlayer != NULL) {
libvlc_media_player_pause(vlcPlayer);
}
}
void VlcThread::free()
{
if (vlcInst != NULL) {
libvlc_release(vlcInst);
vlcInst = NULL;
}
if (vlcMedia != NULL) {
libvlc_media_release(vlcMedia);
vlcMedia = NULL;
}
if (vlcPlayer != NULL) {
libvlc_media_player_release(vlcPlayer);
vlcPlayer = NULL;
}
//qDebug() << TIMEMS << "close vlc ok";
}
void VlcThread::stop()
{
stopped = true;
}
//实时视频显示窗体类
VlcWidget::VlcWidget(QWidget *parent) : QWidget(parent)
{
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thread = new VlcThread(this);
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}
VlcWidget::~VlcWidget()
{
close();
}
void VlcWidget::setUrl(const QString &url)
{
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thread->setUrl(url);
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}
void VlcWidget::open()
{
//qDebug() << TIMEMS << "open video" << objectName();
clear();
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thread->play();
thread->start();
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}
void VlcWidget::pause()
{
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thread->pause();
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}
void VlcWidget::next()
{
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thread->next();
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}
void VlcWidget::close()
{
//qDebug() << TIMEMS << "close video" << objectName();
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if (thread->isRunning()) {
thread->stop();
thread->quit();
thread->wait(3000);
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}
QTimer::singleShot(5, this, SLOT(clear()));
}
void VlcWidget::restart()
{
//qDebug() << TIMEMS << "restart video" << objectName();
close();
QTimer::singleShot(10, this, SLOT(open()));
}
void VlcWidget::clear()
{
update();
}