CC lines showing in reverse order.

kfairchild · Post by **kfairchild** » Sun Oct 17, 2021 9:45 pm

When viewing CC with the Dolby Captiview the caption lines appear in reverse order.

Captions were created with Subtitle Edit. Saved using the D-Cinema SMPTE 2014 format.
Caption source file attached. As well as the output xml from dcpomatic.

The dcpomatic player does show the lines in the correct order, but playback through the Dolby Captiview does not.
It appears that dcpomatic is reversing the order in the xml output.

kfairchild · Post by **kfairchild** » Sun Oct 17, 2021 9:46 pm

dcpomaticCC2.jpg

dcpomaticCC.JPG

Post by **carl** » Sun Oct 17, 2021 10:18 pm

Hi,
Thanks for the report! I think I can see what needs to change in DCP-o-matic to fix this. I made a note on our tracker. I'm away for a few days but I'll take a look when I get back.

Carsten · Post by **Carsten** » Sun Oct 17, 2021 11:35 pm

Using Valign is mentioned in Harolds CCAP best practice document:

https://isdcf.com/papers/ISDCF-Doc9-Clo ... ctices.pdf

HaroldHallikainen · Post by **HaroldHallikainen** » Mon Oct 18, 2021 12:57 am

The Valign and Vposition values for the Text elements look correct, but as pointed out in the ISDCF document, some systems require the top line of text to be the first Text element. Here it is the bottom. That complies with SMPTE ST 428-7, but does not work properly on this system.

Harold

Post by **carl** » Mon Oct 18, 2021 8:41 am

Thanks Harold, I will fix that.

DCP-o-matic

CC lines showing in reverse order.

CC lines showing in reverse order.

Re: CC lines showing in reverse order.

Re: CC lines showing in reverse order.

Re: CC lines showing in reverse order.

Re: CC lines showing in reverse order.

Re: CC lines showing in reverse order.