RE: ISSUE-189: do regions scroll their flowed content? [DFXP 1.0]

This email trail has become a classic illustration of why **examples** of ‘how to implement Scrolling behaviour’ are necessary in TTML, SMPTE-TT and CFF. ;-)

John

John Birch | Screen Systems | Strategic Partnerships Manager
Main Line : +44 1473 831700 | Ext : 270 | Direct Dial : +44 1473 834532
Mobile : +44 7919 558380 | Fax : +44 1473 830078
John.Birch@screensystems.tv<mailto:John.Birch@screensystems.tv> | www.screensystems.tv<http://www.screensystems.tv> | http://twitter.com/ScreenSubtitles


SMPTE Annual Technical Conference & Exhibition,23-24 October, Stand 112
Loews Hollywood hotel, Hollywood

P Before printing, think about the environment



From: Sean Hayes [mailto:Sean.Hayes@microsoft.com]
Sent: 29 September 2012 10:13
To: Glenn Adams; Michael A Dolan
Cc: Timed Text Working Group
Subject: RE: ISSUE-189: do regions scroll their flowed content? [DFXP 1.0]

You would want to set the region to tts:displayAlign=’after’ so that the later added lines have the effect of pushing the earlier lines out of the top. The br
S are un-necessary here as we have an implied line break because of the p. One could do the same thing with spans and br.

Then to do a multiple scrolled region:

<.div region=’afterformattedregion’>

<p begin=”1s” dur=”3s”>first line</p>

<p begin=”2s” dur=”3s”>second line</p>

<p begin=”3s” dur=”3s”>third line</p>

<./div>



From: Glenn Adams [mailto:glenn@skynav.com]<mailto:[mailto:glenn@skynav.com]>
Sent: 29 September 2012 01:17
To: Michael A Dolan
Cc: Timed Text Working Group
Subject: Re: ISSUE-189: do regions scroll their flowed content? [DFXP 1.0]


On Fri, Sep 28, 2012 at 11:42 PM, Michael A Dolan <mdolan@newtbt.com<mailto:mdolan@newtbt.com>> wrote:
By way of example so we’re clear on the timed flow, the following TTML into a 2-line-height region:

<p begin=”1s” end=”3s”>first line</p>
<p begin=”2s” end=”4s”><br>second line</p>
<p begin=”3s”><br>third line</p>

Would result in the following text over the time periods shown:

1s-2s:
first line
<blank line>

2s-3s:
first line
second line

no; the <br/> would result in the second <p> would produce

first line
blank line (from <br/>)
second line

so visually you would have

first line
blank line


3s-4s:
second line
third line

no, the <br/> would produce a blank line before second line, so visually you would have

blank line
second line
[not visible blank line]
[not visible third line]

etc

why you are inserting <br/>?



This message may contain confidential and/or privileged information. If you are not the intended recipient you must not use, copy, disclose or take any action based on this message or any information herein. If you have received this message in error, please advise the sender immediately by reply e-mail and delete this message. Thank you for your cooperation. Screen Subtitling Systems Ltd. Registered in England No. 2596832. Registered Office: The Old Rectory, Claydon Church Lane, Claydon, Ipswich, Suffolk, IP6 0EQ