下载地址：Index of /pub/videolan/vlc/
配置：(38条消息) LibVLC —— Qt下的配置（附所有出现的问题解决）_信必诺的博客-CSDN博客_qt配置libvlc
1、准备
(1)默认已经安装好Qt。
(2)在上述vlc官网下载vlc一般下载.7z文件，文件中包含有sdk。
2、打开vlc文件，分别将sdk、plugins拷出。在拷出的目录下创建bin文件夹，并将libvlccore.dll、libvlc.dll拷贝进去。
在工程根目录下创建vlc 目录，将sdk目录下的内容和plugins目录下的内容复制到vlc下，并在vlc下创建bin 文件夹并将libvlccore.dll、libvlc.dll拷贝进去。
3、创建Qt项目。
(1)在pro文件下加入头文件、库的引用。
############################## VLC
INCLUDEPATH += vlc/include
LIBS += vlc/lib/libvlc.lib //可以用绝对路径
LIBS += vlc/lib/libvlccore.lib //可以用绝对路径
##############################
(2)在Qt中加入vlc头文件，并打开改文件加入内容
#include "vlc/vlc.h"
// 打开"vlc/vlc.h"。在改文件内的"extern C"前面加入下面内容。
typedef __int64 ssize_t;
#include "vlc/vlc.h"
// 打开"vlc/vlc.h"。在改文件内的"extern C"前面加入下面内容。
typedef __int64 ssize_t;
(3)构建Qt目录，然后在exe目录下将libvlccore.dll、libvlc.dll拷贝进去、将plugins文件也拷贝进去。
#include <QMediaPlayer>
#include <QMediaPlaylist>
libvlc_instance_t* m_pInstance = libvlc_new(0,NULL); //创建实例
if(!m_pInstance){
qDebug() << "no vlc";
exit(EXIT_FAILURE);
}else{
libvlc_media_player_t* m_pMediaPlayer=libvlc_media_player_new(m_pInstance); //创建媒体
if(!m_pMediaPlayer){
libvlc_release(m_pInstance);
exit(EXIT_FAILURE);
}
}
//获取本地文件路径
QString filename=QFileDialog::getOpenFileName(this,"打开文件","D:/projects/test","视频文件(*.mp4 *.flv)");
if(filename.isEmpty()){
return;
}
filename.replace("/", "\\"); //必须
或者 filename = QDir::toNativeSeparators(filename);
//设置路径
libvlc_media_t* m_pMedia = libvlc_media_new_path(m_pInstance,filename.toStdString().c_str());
if(m_pMedia){
libvlc_media_parse(m_pMedia); // 有此可以获取时长
libvlc_media_player_set_media(m_pMediaPlayer,m_pMedia);
libvlc_media_player_set_hwnd(m_pMediaPlayer, (void*)(ui->video_widget->winId()) );
libvlc_media_release(m_pMedia);
m_pMedia=nullptr;
libvlc_media_player_play(m_pMediaPlayer);
}
//获取视频播放状态
libvlc_media_player_get_state(m_pMediaPlayer)==libvlc_state_t::libvlc_Playing ;正在播放
libvlc_media_player_get_state(m_pMediaPlayer)==libvlc_state_t::libvlc_Paused; 暂停状态
libvlc_media_player_get_state(m_pMediaPlayer)==libvlc_state_t::libvlc_Stopped; 停止状态
libvlc_media_player_pause(m_pMediaPlayer) ; //暂停
libvlc_media_player_stop(m_pMediaPlayer); // 停止
管理视频参数需要libvlc_event_manager_t 对象，在创建mediaplayer后，attach 视频seek 和声音调整的回调函数
if(m_pMediaPlayer){
libvlc_event_manager_t* m_pEvent_manager=libvlc_media_player_event_manager(m_pMediaPlayer);
libvlc_event_attach(m_pEvent_manager,libvlc_MediaPlayerPositionChanged,vlc_callback,this);
libvlc_event_attach(m_pEvent_manager,libvlc_MediaPlayerAudioVolume,vlc_callback,this);
}
void vlc_callback(const struct libvlc_event_t* p_event,void* p_data){
MainWidget* pMain = static_cast<MainWidget*>(p_data);
}
int duration =libvlc_media_get_duration(m_pMedia); //获取时长，单位毫秒，在释放前获取，这里不是媒体，
libvlc_media_player_get_postion(); //获取当前播放时长，百分比
libvlc_meida_player_set_postion(m_pMdiaPlayer,[value]/100.0);
libvlc_media_player_get_time(pMain->getMediaPlayer())/1000; //获取当前播放的时间单位毫秒
libvlc_media_player_get_volume(pMain->getMediaPlayer()); 获取当前播放的声音
libvlc_media_player_set_volume(m_pMediaPlayer,value); 设置播放声音
播放事件
pManager = libvlc_media_player_event_manager(pMediaPlayer);
libvlc_event_attach(pManager,libvlc_MediaPlayerPositionChanged,libvlc_callback,this);
libvlc_event_attach(pManager,libvlc_MediaPlayerAudioVolume,libvlc_callback,this);
多文件播放
pMediaListPlayer=libvlc_media_list_player_new(pInstance);
//监听事件
pManager = libvlc_media_list_player_event_manager(pMediaListPlayer);
libvlc_event_attach(pManager,libvlc_MediaPlayerPositionChanged,call_back,this);
pMediaList = libvlc_media_list_new(pInstance);
for(int i=0;i<filenames.size();i++){
QString filename = QDir::toNativeSeparators(filenames[i]);
pMedia = libvlc_media_new_path(pInstance,filename.toStdString().c_str());
libvlc_media_list_add_media(pMediaList,pMedia);
}
libvlc_media_list_player_set_media_list(pMediaListPlayer,pMediaList);
libvlc_media_list_player_set_media_player(pMediaListPlayer,pMediaPlayer);
libvlc_media_player_set_hwnd(pMediaPlayer,(void*)ui->media_widget->winId());
libvlc_media_list_player_play(pMediaListPlayer);