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<title>libdcp/test/mca_test.cc, branch cpp17</title>
<subtitle>DCP handling library</subtitle>
<id>https://git.carlh.net/cgit/libdcp/atom?h=cpp17</id>
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<updated>2024-03-22T14:18:55Z</updated>
<entry>
<title>Bump asdcplib to dcpomatic-2.13.0 branch.</title>
<updated>2024-03-22T14:18:55Z</updated>
<author>
<name>Carl Hetherington</name>
<email>cth@carlh.net</email>
</author>
<published>2024-03-20T22:21:25Z</published>
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<id>urn:sha1:cb4759c178e3229796e8139f3f21a230532a7499</id>
<content type='text'>
</content>
</entry>
<entry>
<title>Pass MainSoundConfiguration object rather than a string.</title>
<updated>2023-04-04T21:37:15Z</updated>
<author>
<name>Carl Hetherington</name>
<email>cth@carlh.net</email>
</author>
<published>2023-04-02T21:10:24Z</published>
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<id>urn:sha1:2da55dbe6da21975612584365db17db2ae9935b8</id>
<content type='text'>
I guess originally it was a string mostly because it's not very well defined,
and Interop seemingly does whatever it wants.  This basic change also means
that things are checked more carefully, and so we must be more relaxed with
some things seen in the wild that I can't find contradictions for in the
standard (and also with the case of channel IDs, which does seem to be
mentioned in the standard).
</content>
</entry>
<entry>
<title>Allow specification of channels that need a MCASubDescriptor.</title>
<updated>2023-03-20T23:37:12Z</updated>
<author>
<name>Carl Hetherington</name>
<email>cth@carlh.net</email>
</author>
<published>2023-03-20T23:37:12Z</published>
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<id>urn:sha1:c047da0a3ee78f8066ef65cdbcd978cdd67fb42e</id>
<content type='text'>
</content>
</entry>
<entry>
<title>Remove the bools and default parameters from SoundAsset::start_write().</title>
<updated>2023-03-20T15:41:02Z</updated>
<author>
<name>Carl Hetherington</name>
<email>cth@carlh.net</email>
</author>
<published>2023-03-17T12:33:08Z</published>
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<id>urn:sha1:870f02f07ee51ee478006260e2c3b683e591b0c9</id>
<content type='text'>
They were more confusing than they were worth.
</content>
</entry>
<entry>
<title>Specify number of channels in the data passed to SoundAssetWriter, and pad channels that aren't there.</title>
<updated>2023-03-16T18:52:06Z</updated>
<author>
<name>Carl Hetherington</name>
<email>cth@carlh.net</email>
</author>
<published>2023-03-16T18:51:27Z</published>
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<id>urn:sha1:c1d296b163ddf88a5b387f98e7e77988a242a996</id>
<content type='text'>
</content>
</entry>
<entry>
<title>C++11 tidying.</title>
<updated>2021-07-14T00:02:17Z</updated>
<author>
<name>Carl Hetherington</name>
<email>cth@carlh.net</email>
</author>
<published>2021-07-14T00:02:17Z</published>
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<id>urn:sha1:96d6f783b7dfac04af8a7d77033a3d05e31cfc10</id>
<content type='text'>
</content>
</entry>
<entry>
<title>Fix/hide some warnings.</title>
<updated>2021-04-13T23:00:05Z</updated>
<author>
<name>Carl Hetherington</name>
<email>cth@carlh.net</email>
</author>
<published>2021-04-13T23:00:05Z</published>
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<id>urn:sha1:274dd30f2b11fe8ea563a2ac7436c9d463865b0b</id>
<content type='text'>
</content>
</entry>
<entry>
<title>C++11 tidying.</title>
<updated>2021-04-11T23:22:10Z</updated>
<author>
<name>Carl Hetherington</name>
<email>cth@carlh.net</email>
</author>
<published>2021-04-11T20:25:21Z</published>
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<id>urn:sha1:2c5e61891e7975f4c2d33a5f2ed144645e3078f9</id>
<content type='text'>
</content>
</entry>
<entry>
<title>Specify CPL standard on construction.</title>
<updated>2021-04-11T23:22:10Z</updated>
<author>
<name>Carl Hetherington</name>
<email>cth@carlh.net</email>
</author>
<published>2021-04-11T20:24:44Z</published>
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<id>urn:sha1:498806d76160a6b1fa0af58e7734c0f553abf12b</id>
<content type='text'>
Then choose which standard DCP should use based on the CPL(s).
</content>
</entry>
<entry>
<title>Write MCA tags based on the specified sound field.</title>
<updated>2021-03-25T23:09:15Z</updated>
<author>
<name>Carl Hetherington</name>
<email>cth@carlh.net</email>
</author>
<published>2021-03-25T23:09:15Z</published>
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<id>urn:sha1:b9c5e3f74550917676e14324791d6ba4d0c07cac</id>
<content type='text'>
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).
</content>
</entry>
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