QT实现流媒体播放

#include

#include

#include

#include

#include

#include

#include  

 

QByteArray byteArray;

QBuffer buffer(&byteArray);

void *haddle(void *)

{

     char buf[20000];

     int n,i=0;

     FILE *fp; 

     buffer.open(QIODevice::ReadWrite);

     if((fp=fopen("/home/denggs/V4L2/2010.mpg","r+"))==NULL) 

     {

         perror("error11\n"); exit(1);

     }

     do 

     { 

         n=fread(buf,1,20000,fp);

         qDebug("%d %d\n",n,i);

         if(n>0)

         {

             buffer.seek(i*20000);

             i++;

             buffer.write(buf,n);

         }

         if(feof(fp))

         { 

             perror("OK\n");

             break;

         } 

         memset(buf,0,20000); 

     }

     while(1);

     return 0;

} 

int main(int argc, char *argv[])

{

    QApplication a(argc, argv);

    a.setApplicationName("VideoPlayer"); 

    QWidget *widget=new QWidget;

    widget->setWindowTitle("Video Player");

    widget->resize(600,400);

    Phonon::VideoPlayer *player=new Phonon::VideoPlayer(Phonon::VideoCategory,widget);      

    pthread_t b;

    pthread_create(&b,NULL,haddle,NULL);

    sleep(1);

    player->load(Phonon::MediaSource(& buffer));

    player->play();

    widget->show(); 

    return a.exec();

}