[vlc-devel] CLI Bindings : AccessViolationException on player

[Damien]

>
> Try this code please:
>
> (1. _VLC is a local global/private variable)
> (2.  Change the appropriate opts items to match yours)
> (3.  Call Initialize)
> (4.  Call PlayVideo (filename,windowhandle,""))
>
>
I have copied your code (altering it to match bindings in vlc git). Here it
is :
--8<----8<----8<----8<----8<----8<--
    public partial class Form1 : Form
    {
        private VLC _VLC;
        private bool _VLCDebug;
        private string _VLCPath;
        private string _VLCPluginPath;
        private bool _IsRunning = false;

        internal Form1(string vlcPath, string vlcPlugins)
        {
            InitializeComponent();
            this._VLCPath = vlcPath;
            this._VLCPluginPath = vlcPlugins;
        }

        private void Form1_Shown(object sender, EventArgs e)
        {
            this.Initialize(true);
            this.PlayVideo("D:\\a.avi", this.Handle, string.Empty);
        }

        public bool Initialize(bool DebugOn)
        {
            _VLCDebug = DebugOn;
            string[] opts = { "-I", "dummy", "--plugin-path=" +
_VLCPluginPath, "--one-instance" };
            string[] optsdebug = { "-I", "dummy", "--plugin-path=" +
_VLCPluginPath, "-vvv", "--extraintf=logger", "--logfile=D:\\VlcLog.txt" };
            try
            {
                if (_VLCDebug)
                {
                    _VLC = new VLC(optsdebug);
                }
                else
                {
                    _VLC = new VLC(opts);
                }
                _IsRunning = true;
            }
            catch (Exception ex)
            {
                _IsRunning = false;
            }
            return _IsRunning;
        }

        private void PlayVideo(string fn, IntPtr playwindow, string
EncodeOption)
        {
            Media mx = new Media(_VLC, fn);
            if (!string.IsNullOrEmpty(EncodeOption))
                mx.AddOptions(EncodeOption, true);
            //Note: You may set playwindow = intptr.zero, which will just
encode your file/not show it
            Player player = new Player(_VLC);
            player.Media = mx;
            this.Text = mx.Location;
            mx.Dispose();
            player.Play();
        }
    }
--8<----8<----8<----8<----8<----8<--


Running from VS2008 debugger :
 - Media.Location returns a bad string (libvlc_media_get_mrl)
 - AccessViolationException when calling LibVLC.PlayerPlay().

Running from commandline with mono :
 - Media.Location is good
 - crashes at PlayerPlay() too.

Thanks for trying to help.

Damien
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