我的一个程序使用 AxShockwaveFlash 组件作为流播放器。问题是我的代码适用于大多数流提供商(livestream、ustream、own3d.tv),但 Justin.TV 的播放器有些问题。
在讨论实际问题之前,让我总结一下我的代码;
Inherited FlashControl - 这允许我覆盖 flashplayer 的内置菜单:
public class FlashPlayer : AxShockwaveFlashObjects.AxShockwaveFlash // Customized Flash Player.
{
private const int WM_MOUSEMOVE = 0x0200;
private const int WM_MOUSEWHEEL = 0x020A;
private const int WM_LBUTTONDOWN = 0x0201;
private const int WM_LBUTTONUP = 0x0202;
private const int WM_LBUTTONDBLCLK = 0x0203;
private const int WM_RBUTTONDOWN = 0x0204;
private const int WM_RBUTTONUP = 0x0205;
public new event MouseEventHandler DoubleClick;
public new event MouseEventHandler MouseDown;
public new event MouseEventHandler MouseUp;
public new event MouseEventHandler MouseMove;
public FlashPlayer():base()
{
this.HandleCreated += FlashPlayer_HandleCreated;
}
void FlashPlayer_HandleCreated(object sender, EventArgs e)
{
this.AllowFullScreen = "true";
this.AllowNetworking = "all";
this.AllowScriptAccess = "always";
}
protected override void WndProc(ref Message m) // Override's the WndProc and disables Flash activex's default right-click menu and if exists shows the attached ContextMenuStrip.
{
if (m.Msg == WM_LBUTTONDOWN)
{
if (this.MouseDown != null) this.MouseDown(this, new MouseEventArgs(System.Windows.Forms.MouseButtons.Left, 1, Cursor.Position.X, Cursor.Position.Y, 0));
}
else if (m.Msg == WM_LBUTTONUP)
{
if (this.MouseUp != null) this.MouseUp(this, new MouseEventArgs(System.Windows.Forms.MouseButtons.None, 0, Cursor.Position.X, Cursor.Position.Y, 0));
}
else if (m.Msg == WM_MOUSEMOVE)
{
if (this.MouseMove != null) this.MouseMove(this, new MouseEventArgs(System.Windows.Forms.MouseButtons.None, 0, Cursor.Position.X, Cursor.Position.Y, 0));
}
else if (m.Msg == WM_RBUTTONDOWN)
{
if (this.ContextMenuStrip != null) this.ContextMenuStrip.Show(Cursor.Position.X, Cursor.Position.Y);
m.Result = IntPtr.Zero;
return;
}
else if (m.Msg == WM_LBUTTONDBLCLK)
{
if (this.DoubleClick != null) this.DoubleClick(this, new MouseEventArgs(System.Windows.Forms.MouseButtons.Left, 2, Cursor.Position.X, Cursor.Position.Y, 0));
m.Result = IntPtr.Zero;
return;
}
base.WndProc(ref m);
}
}
播放器窗口代码:(播放器是FlashPlayer的一个实例)
private void Player_Load(object sender, EventArgs e)
{
try
{
this.Text = string.Format("Stream: {0}", this._stream.Name); // set the window title.
this.Player.LoadMovie(0, this._stream.Movie); // load the movie.
if (this._stream.ChatAvailable && Settings.Instance.AutomaticallyOpenChat) this.OpenChatWindow();
}
catch (Exception exc)
{
// log stuff.
}
}
所以这对 livestream.com、ustream.com、own3d.tv 非常有效,但是当涉及到 justin.tv 的播放器时,我收到 1337 错误(无效的嵌入代码)。所以我试图向他们寻求支持,但无法得到有效的答案。
_stream.movie 变量实际上保存了流源的有效 URL,例如;
http://cdn.livestream.com/grid/LSPlayer.swf?channel=%slug%&autoPlay=true(直播样本)
或者
尝试对 justin.tv 的 'channel=%slug%&auto_play=true&start_volume=100' 部分进行 urlencode,但这也不起作用。
所以我开始尝试一些变通方法,首先我认为设置控件的 flashVars 变量。
但是我有一个奇怪的问题,每当我尝试设置 flashVars 变量时,它永远不会被设置。我找到了有关该问题的示例屏幕截图;
因此,如果我能够设置 flashVariables,我可能会解决 justin.tv 播放器的错误。顺便说一句,我也尝试使用 Player.SetVariable(key,value) 设置变量 - 这也不起作用。
笔记:
- 我在 .net 4.0 客户端配置文件上运行。
- 使用 Flash10l.ocx。
- 使用 "aximp.exe –source "C:\WINDOWS\system32\Macromed\Flash\Flash10l.ocx" 生成了 AxShockwaveFlashObjects.dll、ShockwaveFlashObjects.dll 包装器