I'm trying to manipulate XMT files from MPEG4 video. Does anyone know how to do it. I'm trying to create key words based on the mpeg video and send the data back to a database so that a user can click on the keyword in order to view the particular part of the video.
Urgent help needed
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there's 2 ways of doing so, but both assume your "keywords" are already extracted.
The first one is of course truncating the video in N parts, and assign an OD to each of these parts. Upon user-click the MovieTexture OD is then switched to the new OD and the new part is played.
That's a bit ugly though, hence the second solution: introduce segment descriptors in the video OD that describe each part of the video object (segment descriptors have a name, startTime and duration so you can easily build a "chapter list". Then to switch to a given segment change the MovieTexture url to "OD:ODID#SegmentName"
The pb is that segment descriptors are not supported by MP4Tool yet so you'll need a different BIFS encoder...
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I'm trying to manipulate XMT files from MPEG4 video. Does anyone know how to do it. I'm trying to create key words based on the mpeg video and send the data back to a database so that a user can click on the keyword in order to view the particular part of the video.
Urgent help needed
there's 2 ways of doing so, but both assume your "keywords" are already extracted.
The first one is of course truncating the video in N parts, and assign an OD to each of these parts. Upon user-click the MovieTexture OD is then switched to the new OD and the new part is played.
That's a bit ugly though, hence the second solution: introduce segment descriptors in the video OD that describe each part of the video object (segment descriptors have a name, startTime and duration so you can easily build a "chapter list". Then to switch to a given segment change the MovieTexture url to "OD:ODID#SegmentName"
The pb is that segment descriptors are not supported by MP4Tool yet so you'll need a different BIFS encoder...