linux 下vlc读取rtsp视频，opencv处理

#include 
#include 
#include 
#include 
#include 
#include 


#include 
#include 


using namespace cv;
using namespace std;

nt VIDEO_WIDTH = 1024;
int VIDEO_HEIGHT = 578;
static char * videobuf = 0;
string Vlc_Vertion="";
void *lock(void *data, void**p_pixels)
{
    *p_pixels = videobuf;
    return NULL;
}
void display(void *data, void *id)
{
    IplImage *img = cvCreateImage(cvSize(VIDEO_WIDTH, VIDEO_HEIGHT), IPL_DEPTH_8U, 4);
    img->imageData = videobuf;
    //cvShowImage(libvlc_get_version(), img);
    cvShowImage("image", img);
    cvWaitKey(10);
    cvReleaseImage(&img);
}
void unlock(void *data, void *id, void *const *p_pixels)
{
    (void)data;
    assert(id == NULL);
}

int main()
{
    cvNamedWindow("image", CV_WINDOW_AUTOSIZE);
    libvlc_media_t* media = NULL;
    libvlc_media_player_t* mediaPlayer = NULL;
    char const* vlc_args[] =
    {
        "-I",
        "dummy",
        "--ignore-config",
    };
    Vlc_Vertion=libvlc_get_version();
    videobuf = (char*)malloc((VIDEO_WIDTH * VIDEO_HEIGHT) << 2);
    memset(videobuf, 0, (VIDEO_WIDTH * VIDEO_HEIGHT) << 2);

    libvlc_instance_t* instance = libvlc_new(sizeof(vlc_args) / sizeof(vlc_args[0]), vlc_args);

    //media = libvlc_media_new_path(instance, "/home/zengwei/face/videorace/fashion1.mp4");
    //media = libvlc_media_new_location(instance, "rtsp://192.168.5.11:554/user=admin&password=&channel=1&stream=0.sdp?");
    media = libvlc_media_new_location(instance,"rtsp://192.168.5.140:8554/");
    mediaPlayer = libvlc_media_player_new_from_media(media);
    libvlc_media_release(media);

    //libvlc_media_player_set_media(mediaPlayer, media);
    libvlc_video_set_callbacks(mediaPlayer, lock, unlock, display, NULL);
    libvlc_video_set_format(mediaPlayer, "RV32", VIDEO_WIDTH, VIDEO_HEIGHT, VIDEO_WIDTH<<2);
    libvlc_media_player_play(mediaPlayer);

    while (1)
    {
    }
    return 0;
}