rem: totem_embedded_play (TotemEmbedded *emb)
add: totem_embedded_play (TotemEmbedded *emb, GError **err)
context: totem_embedded_play (TotemEmbedded *emb){	if (bacon_video_widget_play (emb->bvw, NULL))		totem_embedded_set_state (emb, STATE_PLAYING);}