# vhs: obs-n vhs-tik 1080p-ra pasatzeko prozesua
INPUT=$1
TMP="tmp-$(date +%Y-%m-%d_%H-%M-%S).mp4"
OUTPUT=$2

# aldeetan beltza sartu 16:9 sortzeko
ffmpeg -i "${INPUT}" -vf "pad=1024:576:(ow-iw)/2:(oh-ih)/2:black" -vcodec h264_nvenc -s 1024x576 -r 30 -b:v 2500k -acodec copy "${TMP}"
mv "${TMP}" "${INPUT}"

# 1080p-ra pasatu
ffmpeg -i "${INPUT}" -vcodec h264_nvenc -vf "scale=1920:1080" -r 30 -b:v 4500k -acodec copy "${OUTPUT}"
rm -rf "${INPUT}"