Benchmark concurrent ffmpeg-nvenc instances.

ffmpeg-nvenc-parbench.sh

#!/bin/sh

test $# = 1 || { echo "Usage: ${0##*/} num-loops"; exit 1; }

D="/tmp/${0##*/}"
F="$HOME/lord-inquisitor.mp4"

rm   -rf "$D" || :
mkdir -p "$D"

T0=`date +%s`

for n in `seq 1 $1`; do
   ~/ffmpeg-build-static-binaries/bin/ffmpeg \
     -hwaccel cuvid \
     -c:v h264_cuvid \
     -i "$F" \
     -vf scale_npp=1280:720 \
     -c:v h264_nvenc \
     "$D/$n.mp4" >"$D/$n.log" 2>"$D/$n.err" &
done

wait

echo "Done. $1 loops elapsed $[$(date +%s) - $T0] seconds."