qt4: discontinuity stats signal timeline changes in the content
qt4: discontinuity stats signal timeline changes in the content

Signed-off-by: Ilkka Ollakka <88b345e2e0969920adc1eaa21d1a29b223865bcf@videolan.org>

xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc