WST renderer offers nice functionality as 'fastext' (the red, green, yellow and blue button on theĭisadvantage of WST renderer is that the functionality in wstrender.ax is not documented.Īt least I could not find any information on that. WST renderer (default graphedt choice on Windows XP, and it is quite sure that Media Center is using it). These functions can be found in the file 'PropertyPageCollection.cs'. When the WST decoder filter is added, the corresponding property can be found by 'addFromGraph' by
#NL 1 TELETEXT CODE#
In the DirectX.Capture some additional code needs to be added. In graphedt this works with a right click on the WST decoder. The initial page is 100, to select another page the property page needs to be modified. Then Teletext will become visible, also on graphedt, just run the graph. To create a WST (Teletext) filter graph with Renderstream() just do an Add filter for the WST decoder These filters needs to be added first before it gives the graph that is wanted. There is a third way, just use the WST codec and WST decoder. When I did not specify anything, the WST Renderer is added together with the WST codec and a color filter. I figured out that when adding the WST Decoder Directshow filter to the graph, the VBI codec Than of course, graphedt is the second best tool on earth. Only I could not find any example code to start with on this subject. With help of MSDN I found out that the VBI pin was involed, the term WST came up and thanĭigging around in DirectShowLib (using just grep, the best tool on earth?), I found what I needed. When looking around in Directshow not much information can be found. Okay, with this article this is going to change (I hope).
On the internet there was hardly no information available and that looks very strange. Well many reasons to say no, esspecially the documentation in using it was very bad.
However I want to play with the overlay Mixer and the VMR so I needed an extra video stream.īecause I am familiar with Teletext and I noticed that Directshow offers an interface for it, Using Teletext via the DirectShow was not a real purpose. World standard teletext on a PC, the Windows way
#NL 1 TELETEXT SOFTWARE#
Kijk ook eens op Software Development I2C op de PC, historie : wandelen, fotografie, audio en computer weetjes! World standard teletext on a PC, the Windows way Informatie over TV en FM radio PC software ontwikkeling, Information about TV and FM radio PC software development: Taal: NL of EN
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