Alex P wrote:
Hi James,
ffmpeg -f dshow -video_size 3840x2160 -framerate 60000/1001 -rtbufsize 2100000000
-pixel_format bgr24 -i video="MZ0380 PCI, Analog 01 Capture" -c:v h264_nvenc
-preset lossless -f null -
Gives me the same error
Maybe it doesn't do rgb24 lossless - you should paste full output of
ffmpeg and not top post on this list.
ffmpeg -f dshow -video_size 3840x2160 -framerate 60000/1001 -rtbufsize 2100000000
-pixel_format bgr24 -i video="MZ0380 PCI, Analog 01 Capture" -c:v rawvideo -f
null -
Gets me nearly x1 performance when executing from a ram disk but
ffmpeg -f dshow -video_size 3840x2160 -framerate 60000/1001 -rtbufsize 2100000000
-pixel_format bgr24 -i video="MZ0380 PCI, Analog 01 Capture" -c:v rawvideo
raw.nut
Only gets me x0.5 and the buffer overflows.
The device that raw.nut is written to would need to take 1.5
gigabytes/sec to get full speed.
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