I think this may be the reason (and I may be wrong)-
[2021-01-15T10:32:56.818] [auto_scaler_0 @ 0x5654058cefc0]
w:1920 h:1080 fmt:uyvy422 sar:0/1
->
w:1920 h:1080 fmt:yuv444p sar:0/1
If the decklink is emitting uyvy422-
Stream #0:1, 2, 1/1000000: Video: rawvideo, 1 reference frame (UYVY /
0x59565955), uyvy422(progressive), 1920x1080,
and the next filter needs yuv444p, it's gotta be converted somewhere/somehow.
I was going to suggest using graph2dot to see what the filter graph really
looks like, but it dies with "No such filter: 'hwupload_cuda'"
z!
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