libxml_dep = dependency('libxml-2.0', version : '>= 2.9.2', required : get_option('ttml'))
pango_dep = dependency('pango', required : get_option('ttml'))
cairo_dep = dependency('cairo', required : get_option('ttml'))
pangocairo_dep = dependency('pangocairo', required : get_option('ttml'))

if libxml_dep.found() and pango_dep.found() and cairo_dep.found() and pangocairo_dep.found()
  gstttmlsubs = library('gstttmlsubs',
    ['subtitle.c',
     'subtitlemeta.c',
     'gstttmlparse.c',
     'ttmlparse.c',
     'gstttmlrender.c',
     'gstttmlelement.c',
     'gstttmlplugin.c'],
    c_args : gst_plugins_bad_args,
    include_directories : [configinc],
    dependencies : [gstvideo_dep, libxml_dep, pango_dep, cairo_dep, pangocairo_dep, libm],
    install : true,
    install_dir : plugins_install_dir,
  )
  pkgconfig.generate(gstttmlsubs, install_dir : plugins_pkgconfig_install_dir)
  plugins += [gstttmlsubs]
endif