libdcp/test/ref/DCP/encryption_test, branch tests

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 tests after previous commit.

2021-08-03T22:03:06Z

Test churn from adding make_uuid() into CPL.

2021-06-01T23:44:34Z

Write MCA tags based on the specified sound field.

2021-03-25T23:09:15Z

I had previously assumed that one should write MCA information into the sound MXF based on what channels actually contain sound rather than silence. However a previous example of a stereo DCP gives a verification error in EasyDCP (see DoM bug #1935) which is solved by adding MCA tags for each channel in the specified sound field (e.g. at least 6 tags for a file which is marked as 5.1) even if the audio is really stereo. This commit removes the "active channels" stuff and makes sure that if we say a file is 5.1 we write at least 6 MCA tags (and similarly for 7.1).

Remove 32x32 test image.

2021-01-17T19:13:22Z

Use the read in when the Reel was created from XML (if appropriate)

2020-09-09T20:41:52Z

when writing it out again, rather than creating a new one each time. Also there is the associated test churn here from removing a call to make_uuid().

Hopefully make all tests stable enough to be run with --random,

2020-07-11T19:11:48Z

stopping test reference churn.

Fix unit tests after CPL root namespace fix.

2019-09-08T00:47:26Z

Accept that and are optional, and account for this in tests.

2019-03-18T00:29:47Z

Also fix tests to reflect no longer being filled in with a default value.

Update for changes to video MXF headers.

2019-02-04T12:47:10Z