Mailing Lists: Apple Mailing Lists

Image of Mac OS face in stamp
 
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Fast Start or not?




On Sep 30, 2006, at 8:32 PM, Colin Holgate wrote:

At 11:19 PM -0400 9/30/06, Slava Paperno wrote:
http://collt.no-ip.org:8080/komm/mov_lg/E-GdePapaZhil-2- HallKitchen.mov

It's not fast start. I wouldn't generally trust the fast start setting in an export, I've seen it fail too many times. Just open your exported movie and do a Save As, that'll give you a fast start movie every time.


It is not fast-start because someone added annotations after the movie was flattened. A fast-start movie has the 'moov' atom near the front of the file. Looking at the structure of this file we see that the 123,602 byte 'moov' atom is at the end of the file, and that there is a 122,930 byte 'free' atom 32 bytes from the beginning of the file.:

	'ftyp'  size: 32  offset: 0   - File Type

	'free'  size: 122930  offset: 32   - Free Space

	'free'  size: 16  offset: 122962   - Free Space

	'wide'  size: 8  offset: 122978   - Place holder

	'mdat'  size: 7592783  offset: 122986   - Movie Data

	'moov'  size: 123602  offset: 7715769   - Movie

Looking at the structure of the 'free' atom I can see that it was a 'moov' atom when the file was originally exported. The original 'moov' atom did not have any meta data, but the new one at the end of the file does:

	'meta'  size: 440  offset: 7838723   - Meta Data

	'udta'  size: 208  offset: 7839163   - User Data

So, it looks like someone added the annotations after the movie was flattened. Colin's suggestion to Save As should fix it.

Eric Carlson
QuickTime Engineering
_______________________________________________
Do not post admin requests to the list. They will be ignored.
QuickTime-Users mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/quicktime-users/email@hidden

This email sent to email@hidden
References: 
 >Annoying Active X Messages on Windows IE (From: Jerry Miskell <email@hidden>)
 >Re: Annoying Active X Messages on Windows IE (From: George Langley <email@hidden>)
 >Fast Start or not? (From: Slava Paperno <email@hidden>)
 >Re: Fast Start or not? (From: Colin Holgate <email@hidden>)



Visit the Apple Store online or at retail locations.
1-800-MY-APPLE

Contact Apple | Terms of Use | Privacy Policy

Copyright © 2007 Apple Inc. All rights reserved.