MediaPortal/MediaPortal-1 — comment on commit fd21d7a81e92aaf0a2e569b3922704dbf01ff35f
File: DirectShowFilters/MPAudioRenderer/source/MpAudioRenderer.cpp line 262
By arion-p:

CheckMediaType should never use NegotiateFormat(pwfx, **INFINITE**), it should always use NegotiateFormat(pwfx, **0**), as it should never cause the format to change. It should only check if change is possible but not actually change it.
Only SetMediaType should change the format and that should only happen when the graph is not running