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Re: OT: Digital Cameras & MPEG4

Subject: Re: OT: Digital Cameras & MPEG4
From: Marco Fanciulli <email@hidden>
Date: Wed, 18 Jun 2003 12:37:09 +0200

Mercoledl, 18 Giu 2003, alle 04:38 Europe/Rome, Glenn McNolty ha scritto:

G'day all,
I see a number of digital video cameras can create MPEG4 as a file format. Which MPEG4 is it?

Good question... There are a bunch of cameras that produce a MS-MPEG-4 V3 elementary stream encapsulated in an AVI file. This could not be claimed to be an "MPEG-4" file but M4IF and patent holders had never been so strong (or interested) in contrasting false statements. At least until now. All the other cameras, produce an MPEG-4 Simple Profile video that's exactly the profile used inside QuickTime. What varies a lot from camera to camera is the "trasport" format; someone uses AVI (that is not part of the MPEG-4 standard), someone produces the elementary stream alone, very few cameras produce an MP4 file.

Marco
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	>OT: Digital Cameras & MPEG4 (From: Glenn McNolty <email@hidden>)

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