Exception when resuming fragmentedText rendering

[TobbeMobiTV]

When resuming playout of the fragmentedText content:
http://vm2.dashif.org/dash/vod/testpic_2s/xml_subs.mpd

I get an exception on line 220 in ScheduleController.js

        if (fragmentsToLoad > 0 && !bufferController.getIsAppendingInProgress() && !isFragmentLoading) {

Paused on exception: 'TypeError: bufferController.getIsAppendingInProgress is not a function'.

This is the case since the bufferController is an instance of TextController which does not have that function (in contrast to BufferController).

I'm not sure whether it makes sense to extend the TextController class, or if a simple test should be done to avoid the exception.

[dsparacio]

Added check for this thanks for reporting @TobbeMobiTV . Also I notice while testing this stream seems to be down http://vm2.dashif.org/livesim-dev/testpic_2s/multi_subs.mpd in all player version. Any idea?

[dsparacio]

Fixed with PR #1058