libdcp/src/subtitle_asset_internal.cc, branch sub-rework

Fix various bugs in subtitle/ccap verification.

2021-03-15T00:36:51Z

Check that subtitles don't overlap reel boundaries, and fix a few tests that trip this check. Fix confusion when calculating subtitle timings during verification where the picture asset frame rate was being used rather than the subtitle asset's edit rate. Do the subtitle timing verification for Interop as well as SMPTE subtitles. Take tags into account when checking subtitles, even though Bv2.1 says they should be set to 0. Rename Time::as_editable_units to Time::as_editable_units_ceil and add a _floor variant, then use that to round down when checking reel boundary overlaps.

Tidying.

2021-01-24T03:15:26Z

Assorted c++11 cleanups.

2021-01-22T00:39:22Z

Use enum class for the things in types.h

2021-01-21T00:57:06Z

std::shared_ptr

2021-01-07T23:35:29Z

Switch to UUIDs for Interop image subtitle identification (rather than indices). Basic and untested SMPTE image subtitle support.

2018-07-08T23:43:13Z

Basic interop bitmap writing.

2018-07-07T23:19:42Z

SubtitleString -> shared_ptr

2018-07-07T22:16:45Z

Fix missing HAlign/VAlign attributes in subtitles when their value is negative.

2018-01-13T21:18:24Z

Rework subtitle writing to fix incorrect output with

2016-10-06T23:02:47Z

in-line font changes (#952).