BOOST_REQUIRE (!wait_for_jobs());
audio = content_factory("test/data/sine_440.wav").front();
film->examine_and_add_content (audio);
BOOST_REQUIRE (!wait_for_jobs());
BOOST_REQUIRE (audio->audio);
audio->audio->set_language (dcp::LanguageTag("de-DE"));
BOOST_REQUIRE (!wait_for_jobs());
audio = content_factory("test/data/sine_440.wav").front();
film->examine_and_add_content (audio);
BOOST_REQUIRE (!wait_for_jobs());
BOOST_REQUIRE (audio->audio);
audio->audio->set_language (dcp::LanguageTag("de-DE"));