Play video and extract frame

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Hello all,

Whilst working on a project, a strange little idea popped into my mind.
I want to play a media file (any format but without a gui), allow the user to pause/resume the video and add the option to extract that frame as a bitmap (instead of making a screenshot).

I've found the DirectShow MediaPlayer in C#[^] but the Video[^] class doesn't contain a 'current frame' property.
If I knew the current frame, CP would probably have an article on extracting it.

I'm also open for other method's of playing the video as long as I can hide the gui.

Posted 20-Apr-11 23:38pm

Groulien

Updated 20-Apr-11 23:42pm

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willempipi 21-Apr-11 6:20am

Sorry, no solution by me, but I'm looking for the same thing for a long time now. Really interested in a solution for this one...

2 solutions

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BobJanova · Answer 1 · 2011-04-21T05:14:00

That documentation is horribly short on examples, but two ideas come to mind.
- The class renders to a control, specified by its Owner property. Can you use Control.DrawToBitmap, or something similar, to access the previous frame rendered to that control?
- If you set RenderToTexture, and handle TextureReadyToRender, you may get a texture each frame. I am not familiar with this class so I don't know if that's the case, but it's hard to see how else it would work. I can't currently see how to get the bitmap data out of a texture but that must be possible ...

El_Codero · Answer 2 · 2012-03-05T04:34:00

Solution 2

Hi,

maybe it's working for you with MediaDetector Method from
http://wpfmediakit.codeplex.com/[^]
solves your problem.

Here's a quick solution how to make Video-Thumbnails with this great Library.
Creating Video Thumbnails[^]

Best Regards

Posted 5-Mar-12 4:34am

El_Codero