nvenc_h264 nvenc_h265
-hwaccel cuda
-c:v h264_nvenc
-c:v hevc_nvenc
#1 - A corrupt 1920×1080 video:
ffmpeg -y -vsync 0 -hwaccel cuda -i "input.mp4" -c:a copy -c:v h264_nvenc -b:v 2M -pix_fmt yuv420p "output.mp4"
#2 - a 7680×3840 H.265 video with incompatible profile for VHT - a stutter playback 7260×3630 60fps 10bit video
ffmpeg -y -vsync 0 -hwaccel cuda -i "input.mp4" -c:a copy -c:v hevc_nvenc -b:v 80M -pix_fmt yuv420p "output.mp4"
#3 - a 7680×7680 video not hardware decoded because is H.264 encoded
ffmpeg -y -vsync 0 -i "input.mp4" -c:a copy -c:v hevc_nvenc -b:v 62M -pix_fmt yuv420p "output.mp4"