dcpomatic/test/dcp_subtitle_test.cc, branch arbitrary-hz

Untested conversion to num/den DCPTime.

2025-09-02T20:40:13Z

Summary of required changes: Replace ::from_frames with a constructor that takes num/den. Provide and use member to_debug_string() instead of to_string(). Provide and use member to_serializable_string() and string constructor instead of fmt::to_string on .get() and number constructor. Provide and use content_time() member instead of ContentTime constructor from DCPTime. Use frames_round(96000) instead of get() when comparing times to see if they are "close enough". Provide and use DCPTime(x, FrameRateChange) constructor when converting from ContentTime. Use .seconds() when calculating proportions or sometimes when dividing by HZ. Provide and use operator bool(). Pass explicit 96000 denominator in a lot of places. Add member max() and use it instead of static max() Change BOOST_CHECK_EQUAL to BOOST_CHECK Provide operator/ and use it instead of .get() / 2.

Bump libdcp for very invalid subtitle duration checks.

2025-04-14T16:42:09Z

Fix subtitles being written with negative times when trimmed (#2965).

2025-02-03T00:32:02Z

Adapt to some libdcp class renaming to allow open captions/closed subtitles.

2024-09-03T15:02:24Z

Simplify the FontIDAllocator a lot (#2827).

2024-06-11T07:52:28Z

This is at the expense of forward compatibility, and the need to re-examine subtitle content (losing custom fonts as we do so). But it does mean that the code is simpler, and there's not this weird growth of IDs where a DCP gets imported with some font, and then the ID becomes 0_font, and if you do it again it's 0_0_font, and so on.

Rename new_test_film2 -> new_test_film.

2024-05-22T08:33:45Z

Replace all new_test_film with new_test_film2.

2024-05-21T21:52:46Z

Rename classes to follow preparatory renames in libdcp.

2024-04-21T21:17:17Z

Inspect most DCPs made during tests with ClairMeta (#76).

2024-01-15T11:44:53Z

Fix handling of empty font IDs and default DCP fonts (#2721) (part of #2722).

2024-01-15T09:21:59Z

Previously we used an empty font ID as the default for when a subtitle has no Font, but in #2721 we saw a DCP with an empty font ID which raised an assertion (because we'd already added our default font with the empty ID). Here we try to fix this (and also make the default font correctly be that from the first ).