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#1 Posted : Monday, November 17, 2008 1:33:37 AM(UTC)
photo boy

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Hi,
   I'm trying to trim a video file (.asf) by using ltmmConvert in C++ with the put_SelectionStart and put_SelectionEnd functions.  put_SelectionEnd gives a direct show HRESULT "E_NOTIMPL" and the video is allowed to run to the end of the clip.  Is there some problem with the MPEG4 parser?

Thanks
 

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#2 Posted : Monday, November 17, 2008 5:05:09 AM(UTC)

Qasem Lubani  
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Usually, seeking and selection issues are related to splitters and demultiplexers, not to codecs. ASF format (which is similar to WMV) is a Microsoft Windows Media format and uses Microsoft parsers. If these do not support selection end, you can try a different approach to split the file.

One way is to do this is to split the file into bitmaps and then join them, this will avoid the selection end problem. For information on how to split the file into bitmaps, you can see the help topic "Splitting an AVI File into Multiple Bitmaps Using ltmmSampleTarget Example" in the Multimeda help file. And you can see the GenAVI demo[LEADTOOLS Multimedia 15\Examples\Ltmm\Cpp\GenAVI] to see how to join them in s single video file.
 
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