ffmpeg: How to list all possible video parameters for DNxHD dnxhr_lb profile?

Question

If I don't put accepted video parameters for DNXHD profile, ffmpeg will list all the possible parameters like this. And I find this very helpful.

[swscaler @ 0x539a420] deprecated pixel format used, make sure you did set range correctly
[dnxhd @ 0x55afb60] video parameters incompatible with DNxHD. Valid DNxHD profiles:
[dnxhd @ 0x55afb60] Frame size: 1920x1080p; bitrate: 175Mbps; pixel format: yuv422p10; framerate: 24000/1001
[dnxhd @ 0x55afb60] Frame size: 1920x1080p; bitrate: 185Mbps; pixel format: yuv422p10; framerate: 25/1
[dnxhd @ 0x55afb60] Frame size: 1920x1080p; bitrate: 365Mbps; pixel format: yuv422p10; framerate: 50/1
[dnxhd @ 0x55afb60] Frame size: 1920x1080p; bitrate: 440Mbps; pixel format: yuv422p10; framerate: 60000/1001
[dnxhd @ 0x55afb60] Frame size: 1920x1080p; bitrate: 115Mbps; pixel format: yuv422p; framerate: 24000/1001
[dnxhd @ 0x55afb60] Frame size: 1920x1080p; bitrate: 120Mbps; pixel format: yuv422p; framerate: 25/1
[dnxhd @ 0x55afb60] Frame size: 1920x1080p; bitrate: 145Mbps; pixel format: yuv422p; framerate: 30000/1001
[dnxhd @ 0x55afb60] Frame size: 1920x1080p; bitrate: 240Mbps; pixel ..... 

Is there a way to get this list for DNxHD codec dnxhr_lb or other DNxHD profiles below?

dnxhd dnxhr_444 dnxhr_hqx dnxhr_hq dnxhr_sq dnxhr_lb

Answer 1

The DNxHR profiles have simpler restrictions - only on pixel format and minimum frame size.

Accepted Pixel formats

LB: YUV 4:2:2 (8-bit)
SQ: YUV 4:2:2 (8-bit)
HQ: YUV 4:2:2 (8-bit)
HQX: YUV 4:2:2 (10-bit)
444: YUV 4:4:4 or RGB (10-bit)

In addition, all HR profiles require the picture to be at least 256 x 120.