clapper does not notify about missing codecs

[legacychimera247]

i opened a video with clapper, and only the audio was playing, was thinking it was a broken video then i opened it with totem. Totem promptly said to me i was missing the h264 codec and if i wanted to install the missing package. After that the video was correctly playing either with clapper, and totem

would be nice for clapper to have the same, people might think medias are broken, while they're only missing codecs and they don't know it