问题已经解决
#include "vlc_on_qt.h"
#include <QX11EmbedContainer>
#include <QVBoxLayout>
#include <QPushButton>
#include <QSlider>
#include <QTimer>
#include <QFrame>
Player::Player()
: QWidget()
{
//preparation of the vlc command
const char * const vlc_args[] = {
"-I", "dummy", /* Don't use any interface */
"--ignore-config", /* Don't use VLC's config */
"--extraintf=logger", //log anything
"--verbose=2", //be much more verbose then normal for debugging purpose
"--plugin-path=/home/gppran/workplace/vlc-1.1.11/modules",
"--vout=x11"};
#ifdef Q_WS_X11
_videoWidget=new QX11EmbedContainer(this);
#else
_videoWidget=new QFrame(this);
#endif
// [20101215 JG] If KDE is used like unique desktop environment, only use _videoWidget=new QFrame(this);
_volumeSlider=new QSlider(Qt::Horizontal,this);
_volumeSlider->setMaximum(100); //the volume is between 0 and 100
_volumeSlider->setToolTip("Audio slider");
// Note: if you use streaming, there is no ability to use the position slider
_positionSlider=new QSlider(Qt::Horizontal,this);
_positionSlider->setMaximum(POSITION_RESOLUTION);
QVBoxLayout *layout = new QVBoxLayout;
layout->addWidget(_videoWidget);
layout->addWidget(_positionSlider);
layout->addWidget(_volumeSlider);
setLayout(layout);
_isPlaying=false;
poller=new QTimer(this);
//Initialize an instance of vlc
//a structure for the exception is neede for this initalization
//libvlc_exception_init(&_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
//create a new libvlc instance
_vlcinstance=libvlc_new(sizeof(vlc_args) / sizeof(vlc_args[0]), vlc_args); //tricky calculation of the char space used
//_vlcinstance=libvlc_new(sizeof(vlc_args) / sizeof(vlc_args[0]), vlc_args,&_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
//raise (&_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
// Create a media player playing environement
_mp = libvlc_media_player_new (_vlcinstance);
//_mp = libvlc_media_player_new (_vlcinstance, &_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
//raise (&_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
//connect the two sliders to the corresponding slots (uses Qt's signal / slots technology)
connect(poller, SIGNAL(timeout()), this, SLOT(updateInterface()));
connect(_positionSlider, SIGNAL(sliderMoved(int)), this, SLOT(changePosition(int)));
connect(_volumeSlider, SIGNAL(sliderMoved(int)), this, SLOT(changeVolume(int)));
poller->start(100); //start timer to trigger every 100 ms the updateInterface slot
}
//desctructor
Player::~Player()
{
/* Stop playing */
libvlc_media_player_stop (_mp);
//libvlc_media_player_stop (_mp, &_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
/* Free the media_player */
libvlc_media_player_release (_mp);
libvlc_release (_vlcinstance);
//raise (&_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
}
void Player::playFile(QString file)
{
//the file has to be in one of the following formats /perhaps a little bit outdated)
/*
[file://]filename Plain media file
http://ip:port/file HTTP URL
ftp://ip:port/file FTP URL
mms://ip:port/file MMS URL
screen:// Screen capture
[dvd://][device][@raw_device] DVD device
[vcd://][device] VCD device
[cdda://][device] Audio CD device
udp:[[<source address>]@[<bind address>][:<bind port>]]
*/
/* Create a new LibVLC media descriptor */
_m = libvlc_media_new_path(_vlcinstance, file.toAscii());
//_m = libvlc_media_new (_vlcinstance, file.toAscii(), &_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
//raise(&_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
libvlc_media_player_set_media (_mp, _m);
//libvlc_media_player_set_media (_mp, _m, &_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
//raise(&_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
// /!\ Please note /!\
//
// passing the widget to the lib shows vlc at which position it should show up
// vlc automatically resizes the video to the ?given size of the widget
// and it even resizes it, if the size changes at the playing
int windid = _videoWidget->winId();
libvlc_media_player_set_xwindow (_mp, windid );
//libvlc_media_player_set_xwindow (_mp, 75 );
//raise(&_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
/* Play */
libvlc_media_player_play (_mp);
//libvlc_media_player_play (_mp, &_vlcexcep ); // [20101215 JG] Used for versions prior to VLC 1.2.0.
//raise(&_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
_isPlaying=true;
}
void Player::changeVolume(int newVolume)
{
//libvlc_exception_clear(&_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
libvlc_audio_set_volume (_mp,newVolume);
//libvlc_audio_set_volume (_vlcinstance,newVolume , &_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
//raise(&_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
}
void Player::changePosition(int newPosition)
{
//libvlc_exception_clear(&_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
// It's possible that the vlc doesn't play anything
// so check before
libvlc_media_t *curMedia = libvlc_media_player_get_media (_mp);
//libvlc_media_t *curMedia = libvlc_media_player_get_media (_mp, &_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
//libvlc_exception_clear(&_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
if (curMedia == NULL)
return;
float pos=(float)(newPosition)/(float)POSITION_RESOLUTION;
libvlc_media_player_set_position (_mp, pos);
//libvlc_media_player_set_position (_mp, pos, &_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
//raise(&_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
}
void Player::updateInterface()
{
if(!_isPlaying)
return;
// It's possible that the vlc doesn't play anything
// so check before
libvlc_media_t *curMedia = libvlc_media_player_get_media (_mp);
//libvlc_media_t *curMedia = libvlc_media_player_get_media (_mp, &_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
//libvlc_exception_clear(&_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
if (curMedia == NULL)
return;
float pos=libvlc_media_player_get_position (_mp);
//float pos=libvlc_media_player_get_position (_mp, &_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
int siderPos=(int)(pos*(float)(POSITION_RESOLUTION));
_positionSlider->setValue(siderPos);
int volume=libvlc_audio_get_volume (_mp);
//int volume=libvlc_audio_get_volume (_vlcinstance,&_vlcexcep); // [20101215 JG] Used for versions prior to VLC 1.2.0.
_volumeSlider->setValue(volume);
}
在const char * const vlc_args[]里面插入"--vout=x11"就行了
