MatroskaExtractor: handle parse error.

This change makes MatroskaExtractor return EOS when it faces
parse error in the middle of extracting.

Test: manually hardcoded parse error and tested if playback
ends gracefully with Photos app.
Test: pass post submit CTS.
Bug: 73654561

Change-Id: I7f51580114de1304348e4d3305153ce6c3a2f13a
1 file changed