libdcp/test/verify_test.cc, branch fmt

Nearly pretty-print subtitle XML (though not in nodes).

2022-03-20T20:20:58Z

This is an attempt to fix DoM bug #2205.

Use optional for ReelAsset _annotation_text.

2022-01-17T19:16:52Z

Not only is this tag optional in Interop and SMPTE, but it would appear that if it is present but empty a DCP will not play back on Sony SRX320 / LMT3000 systems (DoM bug #2124). Here we use optional<>, as seems to make sense, and also refuse to write empty tags (instead omitting the tag entirely).

Fix off-by-one in verification of closed caption line length.

2021-11-09T22:43:46Z

Order subtitles in the XML according to their vertical position (DoM bug #2106).

2021-10-24T18:52:11Z

Allow specification of valign when writing verify tests.

2021-10-24T18:52:11Z

Basic implementation of tag in subtitles.

2021-10-13T20:18:59Z

Fix problems when adding KDMs to a VF, before adding the OV.

2021-10-08T10:48:43Z

If we have a KDM which contains keys for all the assets referred to by a VF (even the ones in the OV) we would previously throw an exception because we tried to give the KDM to the resolved assets when it was given to the Reel. Here we change things so that the addition of KDMs to assets can be deferred if the asset is not yet resolved.

Make the former dcst namespace default for SMPTE subtitles.

2021-10-03T20:18:56Z

In DoM bug #2061 it is reported that Easy DCP gives the error "XML Document has default root namespace prefix: dcst. Default namespace should not use prefix for root or root namespace child nodes." with SMPTE subtitle files written by DCP-o-matic, and that the correct fix is to make the former dcst: namespace the default and then remove the dcst: qualifiers from everything. I'm not sure I agree with the error; AFAICS the subtitle files written by previous versions did not have a default root namespace prefix, since it was specified by xmlns:dcst and not just xmlns alone, so I think they were valid. However, using a default NS also seems fine, slightly simplifies the code and produces more compact subtitle files, so we change that here. It should also stop Easy DCP complaining, which is always marginally preferable to sticking to our guns and getting the blame for it.

Improve message on verify test failure.

2021-08-11T21:35:46Z

Add verify check for empty nodes in timed text.

2021-08-11T21:35:46Z