diff options
| author | Carl Hetherington <cth@carlh.net> | 2024-06-10 01:04:16 +0200 |
|---|---|---|
| committer | Carl Hetherington <cth@carlh.net> | 2024-06-10 21:38:48 +0200 |
| commit | f37099ba3e9157c3ef74ffcc87c34d3fc54ccfe5 (patch) | |
| tree | f012b597f2c467cfb959d0882fb06b0f46d006d6 /doc/design/fonts | |
| parent | a76d4455bdff6df9e7b34a651e57648925726242 (diff) | |
Clarify some documentation slightly.
Diffstat (limited to 'doc/design/fonts')
| -rw-r--r-- | doc/design/fonts | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/doc/design/fonts b/doc/design/fonts index c431d52e9..5d61f71a3 100644 --- a/doc/design/fonts +++ b/doc/design/fonts @@ -47,13 +47,24 @@ Passes subtitles through. * Writer -Gets all fonts, puts them in the font ID map using the font's original ID. This is OK because we -don't need uniqueness in the DCP any more. +Gets all fonts, puts them in the FontIDMap using the font's re-written ID. * Reel Writer -Gets subtitles, uses font ID map to find the ID from the Font C++ object pointer. Puts this ID in +Gets subtitles, uses FontIDMap to find the ID from the Font C++ object pointer. Puts this ID in the font and writes it to the asset. Ensures the required LoadFont is added. + +To put this all another way, we need to: + +1. Make some Content-unique ID from a random font ID. Then we can store this in the metadata.xml, and the user can change the font. + +2. Then do the same trick later, with the same result, so the decoder can receive the random font ID and go via the Content-unique +ID to get the actual font TTF from the Content. + +In both these situations a string is the easiest thing (to go in some XML, and to go in a dcp::SubtitleString). + +This whole problem really is just that a single TextContent represents multiple +DCP reels, and each reel can have a different font with the same font ID. |