Myplaylist(5), etc etc until myplaylist(1999)Īt that point, when there are 2000 (including the base file 'myplaylist') WMP crashes with a catastrophic error.Ĭatastrophic failure (Exception from HRESULT: 0x8000FFFF (E_UNEXPECTED)) but none of them work. But every time it plays the videos a new 'myplaylist.wpl' file is created in the local ".\Music\Playlists" folder and they accumulate in that folder with numbered extensions, ex: The video files are dumped into a folder and a playlist is created on the fly on each cycle so that if the contents of the folder change the new playlist will also be fresh.Ī problem has surfaced and I have researched this but cannot find out whats wrong in my code as the suggested fixes to not seem to work. Import Ĭlass ) Ĭlass am coding an application that displays some still images in a picture box control in sequence (slideshow), and then play several MP4 files using the windows media player WMP control. This is just a sample and suggests one way of doing the same. Then, tie them back to the controls in the UI element where the media will play.īelow are a few classes that help in parsing the ASX response sent by the Web Playlists module when a get request is made for an. The way to add this capability to Flash player is to write an Action Script (.AS) which can load the ASX response from the web request and then parse the response to get the relevant entries and PARAM tags. To play a Web Playlist file in Flash, we need to add the capability for Flash to parse ASX files. isx file, when accessed on the client side, generates an ASX file. One way to overcome this limitation is to seek to the end of the current entry and let the next entry play automatically. Display the Value of the MediaAttributeĪlert("The title of the track is: " attribute.value) Īfter you have read the attributes CANSKIPFORWARD, CANSKIPBACKWARD and CANSEEK, you can easily control the UI experience by appropriately enabling / disabling the controls.By default, Silverlight does not have implemented the concept of skipping to the next entry in the playlist. Var attributesCollection = sender.Attributes Īttribute = attributesCollection.getItemByName("Title") Here is a simple piece of code that tells how to read an attribute: function onMediaOpened(sender, args) CLIENTSKIP is handled by Silverlight by disabling seek on the media element.Īny of these PARAM tags can easily be accessed from a Silverlight app by using Attributes. The PARAM tags of interest in our case are CANSKIPFORWARD, CANSKIPBACK and CANSEEK along with the attribute CLIENTSKIP for the entry. By default, Silverlight just ignores these PARAM tags. In case you want to control the appearance of next / previous buttons, or control the seek bar on the client site, you must access the PARAM tags associated with the MediaElement. This plays the playlist entries in the order specified. To the play the playlist in a Silverlight MediaElement, simply point the Source of the MediaElement to the ISX file location. For a detailed list of the formats and protocols supported, see Supported Media Formats and Protocols. The MediaElement object can play Windows Media Video (WMV), Windows Media Audio (WMA), and MP3 files. The MediaElement begins playing when the page loads. The following example creates a MediaElement and sets its Source property to the URI of a video file. MediaElement is the object in the Silverlight rendering engine that knows how to play back audio and video content.Īdding media to a page is as simple as adding a MediaElement to your markup and providing a Uniform Resource Identifier (URI) to the media to play. Thus, for us to be able to play back Web Playlists in Silverlight, we must use the Media Element. This fits very well with the Web Playlists handler, as it sends out an ASX response when an. Silverlight has an out-of-the-box Media Element that can play ASX files. To install the Web Playlists extension for IIS 7 and above, see the Installation Notes section in the IIS Media Services Readme.įollow the steps below to consume an ISX (Web Playlist) file in Windows Media Player 11 (WMP) Web Playlists works with the clients mentioned in this article however, any client that supports ASX natively or through extensions can use this feature. This article describes how various clients can interact with Web Playlists to display the playlist content.
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