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Support for reading ALAC audio properties

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This commit is contained in:
Frank Lai 2011-06-09 18:41:43 +02:00 committed by Lukáš Lalinský
parent 93564a2daa
commit 8ed9b0da2c
2 changed files with 9 additions and 1 deletions
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8
taglib/mp4/mp4properties.cpp
View File

@ -130,6 +130,14 @@ MP4::Properties::Properties(File *file, MP4::Atoms *atoms, ReadStyle style)
}
}
}
else if (data.mid(20, 4) == "alac") {
if (atom->length == 88 && data.mid(56, 4) == "alac") {
d->bitsPerSample = data.at(69);
d->channels = data.at(73);
d->bitrate = data.mid(80, 4).toUInt() / 1000;
d->sampleRate = data.mid(84, 4).toUInt();
}
}
MP4::Atom *drms = atom->find("drms");
if(drms) {

2
tests/test_mp4.cpp
View File

@ -43,7 +43,7 @@ public:
{
MP4::File f(TEST_FILE_PATH_C("empty_alac.m4a"));
CPPUNIT_ASSERT_EQUAL(3, f.audioProperties()->length());
CPPUNIT_ASSERT_EQUAL(3, f.audioProperties()->bitrate());
CPPUNIT_ASSERT_EQUAL(2, f.audioProperties()->bitrate());
CPPUNIT_ASSERT_EQUAL(2, f.audioProperties()->channels());
CPPUNIT_ASSERT_EQUAL(44100, f.audioProperties()->sampleRate());
CPPUNIT_ASSERT_EQUAL(16, ((MP4::Properties *)f.audioProperties())->bitsPerSample());