Almost no change in bitrate when resizing the video. How to fix?

Question

fmpeg

For example, I use the following command to change the video size:
ffmpeg -i 1.mp4 -c:v h264_nvenc -c:a libmp3lame -vf scale=-1:480 2.mp4 The
codecs are initially the same, but the bitrate and, accordingly, the video size from this practically does not change, although initially it is a really high-quality HD video. In which direction to dig, tell me please.

Answer 1

You can use the CRF parameter
More number means lower quality.
The range of the CRF scale is 0–51, where 0 is lossless, 23 is the default, and 51 is the worst quality possible. A lower value generally leads to higher quality, and a subjectively sane range is 17–28. Consider 17 or 18 to be visually lossless or nearly so; it should look the same or nearly the same as the input but it isn't technically lossless.
I personally use -c:v libx264. Due to the fact that you have a different encoder, it may not work.