[Unit]
Description=FFMPEG HLS webcam streaming service
ConditionPathExists=/etc/octopi_streamer/hls

[Service]
User=root
Restart=always
RestartSec=5
Nice=10
ExecStartPre=/bin/rm -rf /run/webcam
ExecStartPre=/bin/mkdir -p /run/webcam/hls
ExecStartPre=/bin/mkdir -p /run/webcam/hls/240p
ExecStartPre=/bin/mkdir -p /run/webcam/hls/480p
ExecStartPre=/bin/mkdir -p /run/webcam/jpeg
ExecStartPre=/bin/cp /var/lib/ffmpeg_hls/stream.m3u8 /run/webcam/hls/stream.m3u8
ExecStartPre=/bin/chown -R webcam:webcam /run/webcam
ExecStartPre=/bin/chmod -R 0755 /run/webcam

ExecStart=/usr/bin/sudo -u webcam \
    /usr/bin/ffmpeg \
    \
    -framerate 30 -video_size 640x480 \
    -i /dev/video0 \
    -pix_fmt yuv420p \
    \
    -c:v mjpeg -q:v 0 \
    -f image2 -update 1 -atomic_writing 1 \
    /run/webcam/jpeg/frame.jpg \
    \
    -c:v h264_omx -profile:v high \
    -b:v 1264k -flags +cgop \
    -g 30 -keyint_min 30 \
    \
    -f hls -hls_time 1 \
    -hls_flags delete_segments+program_date_time+temp_file+independent_segments \
    -hls_allow_cache 0 -hls_segment_type fmp4 \
    -hls_list_size 32 -hls_delete_threshold 64 \
    /run/webcam/hls/480p/stream.m3u8 \
    \
    -vf scale=-1:240 \
    \
    -c:v h264_omx -profile:v high \
    -b:v 240k -flags +cgop \
    -g 30 -keyint_min 30 \
    \
    -f hls -hls_time 1 \
    -hls_flags delete_segments+program_date_time+temp_file+independent_segments \
    -hls_allow_cache 0 -hls_segment_type fmp4 \
    -hls_list_size 32 -hls_delete_threshold 64 \
    /run/webcam/hls/240p/stream.m3u8

[Install]
WantedBy=multi-user.target