Job transcoding task

jobtask.sh

SRV_PORT=9006
CH_NAME=ch7
SRC="udp://@224.2.2.2:1006?fifo_size=1000000&overrun_nonfatal=1"
###
# use 2 CPUs and 1024 RAM for 720p
# use 1 CPU and 512 RAM for 480p
CONSUL=localhost:8500
CH_RES=720
CH_BAND=1800
CPU_RES=2
MEM_RES=1024
## DO not change chunk and playlist sizes, because:
# * cleaning task uses these values
# * workdir size need to be adjusted  
# * origin-proxy size and store period rely on it
# * iframe calc need to be changed
## DO not change preset without changing CPU_RES,
# it could lead to laggy stream and insufficient resources
## Better DO NOT TOUCH anything under this line at all
#################################################
# transcoder and origin
docker -H :4000 run -d \
         --name=origin-$CH_NAME-$CH_RES-$SRV_PORT \
         --restart unless-stopped \
         --network host \
         --tmpfs /tmp/workdir:size="`echo "$MEM_RES / 2" | bc`"m \
         --expose=$SRV_PORT \
         -m "$MEM_RES"M \
         -c $CPU_RES \
         -e "CONSUL=$CONSUL" \
         -e reschedule:on-node-failure \
         -e affinity:ch_name!=~$CH_NAME \
         -e "SRV_PORT=$SRV_PORT" \
         -e "CH_NAME=$CH_NAME" \
         -e "CH_RES=$CH_RES" \
         -l "ch_name=$CH_NAME" \
         -l "ch_res=$CH_RES" \
         docker-reg.ilikehd.com/transcoder:latest \
            -loglevel warning \
            -stream_loop -1 \
            -i $SRC \
            -c:a libfdk_aac -b:a 128k \
            -c:v libx264 -preset superfast -r 25 \
            -force_key_frames "expr:gte(t,n_forced*6)" \
            -b:v "$CH_BAND"k -minrate "$CH_BAND"k -maxrate "$CH_BAND"k \
            -bufsize "`echo "$CH_BAND * 2" | bc`"k \
            -vf "scale=-2:$CH_RES,format=yuv420p" \
            -flags -global_header -hls_time 6 -hls_list_size 50 \
            -hls_flags delete_segments -hls_allow_cache 1 -use_localtime 1 \
            -hls_segment_filename $CH_NAME-$CH_RES-%Y%m%d-%s.ts \
            -segment_list_flags +live \
            chunklist.m3u8