LibVLC Demux不能窥视

Question

我试图使用LibVLC最终在一个更大的应用程序中传输视频，但现在我正在使用教程。当前的目标只是流一个保存在我的计算机上的视频。

当我使用调试器遍历程序时，错误代码

00000216266e7650 mjpeg解码错误:无法窥视

出现在第56行之后：

libvlc_media_player_stop(mp)；

视频必须放在与main.cpp相同的位置(而不是我想要的任何地方，有一个显式的文件路径)。这是一个.wmv文件。

我使用的是LibVLC 3.0.7.1，作为Visual的NuGet包获得。我无法从源代码中构建libVLC，因为我( a)很难使用Linux，而且不容易访问它；( b)无法安装在Windows计算机上交叉编译所需的所有工具；( c)因为我对此仍然非常陌生

#include <stdio.h>
#include <stdlib.h>
#include <Windows.h>

//extern "C" {
#include <C:\GIT\PVI\packages\VideoLAN.LibVLC.Windows.3.0.7.1\build\x64\include\vlc\vlc.h>
#include <C:\GIT\PVI\packages\VideoLAN.LibVLC.Windows.3.0.7.1\build\x64\include\vlc\libvlc.h>
#include <C:\GIT\PVI\packages\VideoLAN.LibVLC.Windows.3.0.7.1\build\x64\include\vlc\libvlc_media_player.h>
#include <C:\GIT\PVI\packages\VideoLAN.LibVLC.Windows.3.0.7.1\build\x64\include\vlc\libvlc_dialog.h>
#include <C:\GIT\PVI\packages\VideoLAN.LibVLC.Windows.3.0.7.1\build\x64\include\vlc\libvlc_events.h>
#include <C:\GIT\PVI\packages\VideoLAN.LibVLC.Windows.3.0.7.1\build\x64\include\vlc\libvlc_media.h>
#include <C:\GIT\PVI\packages\VideoLAN.LibVLC.Windows.3.0.7.1\build\x64\include\vlc\libvlc_media_discoverer.h>
#include <C:\GIT\PVI\packages\VideoLAN.LibVLC.Windows.3.0.7.1\build\x64\include\vlc\libvlc_media_library.h>
#include <C:\GIT\PVI\packages\VideoLAN.LibVLC.Windows.3.0.7.1\build\x64\include\vlc\libvlc_media_list.h>
#include <C:\GIT\PVI\packages\VideoLAN.LibVLC.Windows.3.0.7.1\build\x64\include\vlc\libvlc_media_list_player.h>
#include <C:\GIT\PVI\packages\VideoLAN.LibVLC.Windows.3.0.7.1\build\x64\include\vlc\libvlc_renderer_discoverer.h>
#include <C:\GIT\PVI\packages\VideoLAN.LibVLC.Windows.3.0.7.1\build\x64\include\vlc\libvlc_version.h>
#include <C:\GIT\PVI\packages\VideoLAN.LibVLC.Windows.3.0.7.1\build\x64\include\vlc\libvlc_vlm.h>
//}

int main(int argc, char* argv[])
{
    libvlc_instance_t * inst;
    libvlc_media_player_t *mp;
    libvlc_media_t *m;

    /* Load the VLC engine */
    inst = libvlc_new(0, NULL);

    /* Create a new item */
    m = libvlc_media_new_path(inst, "1_Holiday_Sale_v6.wmv");
    //m = libvlc_media_new_path (inst, "/path/to/test.mov");

    /* Create a media player playing environement */
    mp = libvlc_media_player_new_from_media(m);

    /* No need to keep the media now */
    libvlc_media_release(m);

#if 0
    /* This is a non working code that show how to hooks into a window,
     * if we have a window around */
    libvlc_media_player_set_xwindow(mp, xid);
    /* or on windows */
    libvlc_media_player_set_hwnd(mp, hwnd);
    /* or on mac os */
    libvlc_media_player_set_nsobject(mp, view);
#endif

    /* play the media_player */
    libvlc_media_player_play(mp);

    Sleep(10); /* Let it play a bit */

    /* Stop playing */
    libvlc_media_player_stop(mp);

    /* Free the media_player */
    libvlc_media_player_release(mp);

    libvlc_release(inst);


    return 0;
}

Answer 1

添加一个答案，而不是删除，以防其他人有类似的问题。

函数接受时间参数，以毫秒为单位。适当地提升它，它就能正常工作。