AVIREAD unable to locate decompressor when H264 codec is present

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Old file ran on R2009A/WIN 32 will not run R2009A/ WIN64 using 'AVS Video Remaker' converted file to H.246. Using video = uigetfile ('*.avi') and then info = aviinfo(video) info.VideoCompresion = H264
Using GSpot I confirm that the H264 codec is present.
However using aviread(video) I get error Unable to locate decompressor. I can display the file on several other programs including 'Windows Media Player'
What is the problem? How do I solve it. PS I have read all of the threads posted on this issue.

Accepted Answer

Onomitra Ghosh
Onomitra Ghosh on 15 Mar 2012
It may be the case the H.264 decoder present is a 32 bit version and not 64 bit one. Windows Media Player (and many other applications) on win64 is a 32 bit application and hence is able to play it fine.

More Answers (1)

Walter Roberson
Walter Roberson on 15 Mar 2012
H.264 was not supported until R2011b (I think it was.)

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