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docker-jellyfin/root/etc/cont-init.d/40-gid-video

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#!/usr/bin/with-contenv bash
FILES=$(find /dev/dri /dev/dvb /dev/vchiq /dev/vc-mem /dev/video1? -type c -print 2>/dev/null)
for i in $FILES
do
VIDEO_GID=$(stat -c '%g' "$i")
if ! id -G abc | grep -qw "$VIDEO_GID"; then
VIDEO_NAME=$(getent group "${VIDEO_GID}" | awk -F: '{print $1}')
if [ -z "${VIDEO_NAME}" ]; then
VIDEO_NAME="video$(head /dev/urandom | tr -dc 'a-zA-Z0-9' | head -c8)"
groupadd "$VIDEO_NAME"
groupmod -g "$VIDEO_GID" "$VIDEO_NAME"
fi
usermod -a -G "$VIDEO_NAME" abc
if [ $(stat -c '%A' "${i}" | cut -b 8,9) != "rw" ]; then
echo -e "**** The device ${i} does not have group read/write permissions, which might prevent hardware transcode from functioning correctly. To fix it, you can run the following on your docker host: ****\nsudo chmod g+rw ${i}\n"
fi
fi
done
# openmax lib loading
if [ -e "/opt/vc/lib" ] && [ ! -e "/etc/ld.so.conf.d/00-vmcs.conf" ]; then
echo "[jellyfin-init] Pi Libs detected loading"
echo "/opt/vc/lib" > "/etc/ld.so.conf.d/00-vmcs.conf"
ldconfig
fi