This fix failure:
ffmpeg -hwaccel cuda -hwaccel_output_format cuda \
-i The_Beauty_of_Earth-1.mp4 \
-vf scale_cuda=2880:1440 \
-c:v hevc_nvenc \
-pix_fmt cuda \
-b:v 8M -c:a copy \
-y test_scale.mp4
> Reconfiguring filter graph because hwaccel changed
> Impossible to convert between the formats supported by the filter
> 'Parsed_scale_cuda_0' and the filter 'auto_scale_0'.
> Error reinitializing filters!
Signed-off-by: Zhao Zhili <quinkblack@foxmail.com>