04f95054
by Brendan McGrath at 2026-04-15T17:11:24+02:00
amstream/tests: Test media type is only on the first of each sample.
The MS documentation for IMediaSample::GetMediaType states that this method:
"retrieves the media type, if the media type differs from the previous sample."
For the amstream direct draw samples, which don't change, this just means to
include it in each sample the first time it is retrieved.