Audio.setSrc() issue & specify client media player feature

answered 2009-08-12 10:14:29 +0800

lovetide
169 ● 1 ● 7

>> 2. I don't see such result by firebug. src not changed so much.
maybe it's because that java.net.URLEncoder.encodeURL() doesn't treat "\\\\192.168.1.1\record\test.vox" as a URL, I must rewrite to a "file://192.168.1.1/record/test.vox" format

>> 1. You can see the result html by firebug. The audio component can't be seen is due to the src. Maybe the browser not register for XXX.vox
As I mentioned before, HTML <embed/> element need determine the MIME type of the media first, it can take a long time to determine the MIME type.

And the .vox format is registered in the OS of client computer. (Does the web-server need to return/config a MIME type for .vox format?)
And, if the protocol of the media resource is something like mms:// rtsp://, then <embed/> does not work too.

>> 3. I don't know if we can assign player? It may violate security?
Some well-known players can be rendered via <object classid='xxx' /> tag, such as Windows Media Player、RealPlayer、QuickTime.

Or, how about org.zkoss.zul.Audio provide a mechanism that developers can specify a HTML template to reander audio component?

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Now, I must manually create a piece of HTML code to render a Windows Media Player in browser to play .vox files. It's quick to render it in browser, and it CAN play .vox file, but I must need a URL to play, I can't take advantage of org.zkoss.zul.Audio.setContent().

// 创建 Windows Media Player 播放器对象
// 由于目前 ZK 的 Audio 组件只通过 embed 元素来创建播放器，速度慢且文件不存在时无法展示播放器，所以改用手工创建播放器的方法
public void CreateWindowsMediaPlayer_FavoriteRecord (String sSrc)
{
	String sURL = bEncodeURL ? new java.net.URI(sSrc.replace("\\","/")).toASCIIString() : sSrc;
	StringBuilder sbClientHTML = new StringBuilder ();
	sbClientHTML.append ("<object classid='clsid:6BF52A52-394A-11D3-B153-00C04F79FAA6' id='theMediaPlayer' width='480' height='64'>");
	sbClientHTML.append ("	<param name='URL' value='");
	sbClientHTML.append (sURL);
	sbClientHTML.append ("'/>");
	sbClientHTML.append ("	<param name='volume' value='100'/>");
	sbClientHTML.append ("	<param name='autoStart' value='-1'/>");
	sbClientHTML.append ("</object>");

	htmlMediaPlayer_FavoriteRecord.setContent (sbClientHTML.toString());
}