ASF video file: rep...
 
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ASF video file: replicated frames and probable tampering

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(@sraposo)
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Joined: 8 years ago
Posts: 11
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Hi, Spready. Thanks for engaging this discussion.

I appreciated too much your considerations but, as I said before, there´s a need to produce a initial report that will have to be based only on that wmv file. It´s very clear that info about recording system will provide a lot of answers about this wmv file, but for while it won´t be possible.

It´s been also considered the possibility that recording system exports streams and/or frames to a ASF format file (wmv).

About GPS coordinates, I could not find any field dedicated to this in ASF Format Revision 01.20.03 documentation.

Please, correct me if I´ve got wrong, but Amped FIVE is a tool that processes image in order to improve quality. So, I guess, it would not provide (very) low level data related to ASF format, would it?


   
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(@sraposo)
Active Member
Joined: 8 years ago
Posts: 11
Topic starter  

Hi all.

At this moment, I think that a video editor that showed only encoded frames (nothing like Vegas Pro ) and exhibited low level data related to each frame( index data, payload data, ASF format structure fields and others) might unveil something useful. To use a hex editor would demand a huge effort to interpret all those fields, so it could be useful to check only little portions of bytes in a very low level, if really needed.

ASFBin and Windows Media ASF View do only part of these functions each one. So, does anyone know a software that presents internal data related to each frame?


   
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(@sraposo)
Active Member
Joined: 8 years ago
Posts: 11
Topic starter  

To whom it can concern

FFDSHOW is configurable video and audio decoder and can be set to show many data of frame and file during video playing. Of course, the player will have to be configured to use FFDSHOW as decoder.
(thanks to user Jagabo on videohelp forum)


   
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