concatenate videos with ffmpeg together with nvdec/nvenc

ffmpeg

ffmpeg -y \
-hwaccel nvdec -i 01* \
-hwaccel nvdec -i 02* \
-hwaccel nvdec -i 03* \
-hwaccel nvdec -i 04* \
-hwaccel nvdec -i 05* \
-filter_complex '[0:v] [0:a] [1:v] [1:a] [2:v] [2:a] [3:v] [3:a] [4:v] [4:a] concat=n=5:v=1:a=1 [v] [a]' \
-map '[v]' -map '[a]' \
-c:v h264_nvenc \
-b:v 4M -maxrate:v 5M -bufsize:v 8M -profile:v main \
-rc:v vbr_hq -rc-lookahead:v 32 -refs:v 16 \
-bf:v 3 -coder:v cabac -b_ref_mode:v middle \
-f mp4 output.mp4