libvlc_new (0, NULL);分段故障 [英] libvlc_new (0, NULL); segmentation fault

问题描述

我在使用此行时遇到问题:

I have a problem when I use this line :

   vlcInstance = libvlc_new(0, NULL);

vlcInstance 在我的标题中声明:

  libvlc_media_player_t *vlcPlayer;

我正在使用 Qt 5.0.1，但出现此错误:

I am using Qt 5.0.1 and I have this error:

The inferior stopped because it received a signal from the Operating System.

Signal name : SIGSEGV Signal meaning : Segmentation fault

有人可以帮我吗?

推荐答案

我在 64 位 Kubuntu 13.04 上使用 Qt Creator 2.7.2 和 QT 5.1.0.我也在使用 vlc-2.2.0-git.

I am using Qt Creator 2.7.2 with QT 5.1.0 on 64-bit Kubuntu 13.04. I'm also using vlc-2.2.0-git.

我创建了一个新的 QT 项目.

I created a new QT project.

我将此添加到新项目文件中(根据需要更改您的 vlc 路径):

I added this to the new project file (change your vlc paths as needed):

INCLUDEPATH += /home/linux/vlc/install/include
LIBS += -L"/home/linux/vlc/install/lib" -lvlc

简单的 main.cpp(包括明显有段错误的代码):

bare-bones main.cpp (including your code that apparently segfaults):

#include <QtDebug>

#include "vlc/libvlc.h"
#include "vlc/libvlc_media.h"
#include "vlc/libvlc_media_player.h"

int main(int argc, char *argv[]) {
    qDebug() << "Starting...";

    libvlc_instance_t* p_instance = libvlc_new(0, NULL);
    qDebug() << "p_instance" << p_instance;

    if (p_instance) {
        libvlc_media_player_t *p_media_player = libvlc_media_player_new(p_instance);
        qDebug() << "p_media_player" << p_media_player;

        if (p_media_player) {
            libvlc_media_player_release(p_media_player);
        }

        libvlc_free(p_instance);
    }

    qDebug() << "Exit normally";
}

这对我来说运行得很好，没有段错误:

This runs just fine for me, no segfault:

Starting... 
p_instance 0x19140f0 
p_media_player 0x19da6d8 
Exit normally

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