Saving a sill picture of a video file
Hi!
I'd like to write a program writing several still pictures of a video file as jpeg to the hard drive. I tried the MediaDetClass and it works, but not for DivX. I'm able to play a video file using the audiovideoplayback from DirectX. Shouldn't it be possible to save the stopped video picture to disk somehow?
thx
michael
[335 byte] By [
sub.0ne] at [2007-12-25]
As long as you have the filters necessary to decode DivX videos, which you obviously do, MediaDet should work. Can you elaborate on how it doesn't work? Does it fail with a certain error, or does it produce black images, or what?
The picturebox shows just a green screen. Trying to play them using the audiovideoplayback works fine. I was not able to reproduce this within any media player yet. May it be a problem with my qedit.dll? I use Nero drivers for divx playback, because they have a better quality and are a lot faster.
The problem most probably lies in your image retrieval code--the code that calls MediaDet and converts the buffer it gives you into a bitmap. MediaDet is really a simple wrapper that creates a normal sample grabber filter graph with a null renderer, so there should be nothing wrong with it. Can you post the saving code?
