2009-05-22 09:50:20 +02:00
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#!/bin/sh
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set -e
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# image.sh is used by the VDR iptv plugin to transcode images from
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# a web server to provide a video stream.
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#
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# The script originates from Peter Holik
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#
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# Example channels.conf entries:
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2010-03-04 16:34:21 +01:00
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# Energy;IPTV:50:S=0|P=0|F=EXT|U=png.sh|A=1:I:0:256:257:0:0:3:0:0:0
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# Temperature;IPTV:60:S=0|P=0|EXT|U=png.sh|A=2:I:0:256:257:0:0:3:0:0:0
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# Temperature Week;IPTV:70:S=0|P=0|EXT|U=png.sh|A=3:I:0:256:257:0:0:3:0:0:0
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# Server Temperature;IPTV:80:S=0|P=0|EXT|U=png.sh|A=4:I:0:256:257:0:0:3:0:0:0
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# Server Temperature Week;IPTV:90:S=0|P=0|EXT|U=png.sh|A=5:I:0:256:257:0:0:3:0:0:0
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# Traffic;IPTV:100:S=0|P=0|EXT|U=png.sh|A=6:I:0:256:257:0:0:3:0:0:0
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2009-05-22 09:50:20 +02:00
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#
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# webcam.sh is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This package is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this package; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
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# MA 02110-1301, USA.
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#
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if [ $# -ne 2 ]; then
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logger "$0: error: Invalid parameter count '$#' $*"
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exit 1
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fi
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# Channels.conf parameter
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case ${1} in
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1)
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URL="http://proxy/cgi-bin/bin/graph.cgi?hostname=proxy;plugin=energy;type=electricity"
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;;
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2)
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URL="http://proxy/cgi-bin/bin/graph.cgi?hostname=proxy;plugin=temp;type=temperature;type_instance=Outdoor"
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;;
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3)
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URL="http://proxy/cgi-bin/bin/graph.cgi?hostname=proxy;plugin=temp;type=temperature;type_instance=Outdoor;begin=-604800"
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;;
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4)
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URL="http://proxy/cgi-bin/bin/graph.cgi?hostname=proxy;plugin=temp;type=temperature;type_instance=Server"
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;;
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5)
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URL="http://proxy/cgi-bin/bin/graph.cgi?hostname=proxy;plugin=temp;type=temperature;type_instance=Server;begin=-604800"
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;;
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6)
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URL="http://proxy/cgi-bin/bin/graph.cgi?hostname=proxy;plugin=interface;type=if_octets;type_instance=ppp0"
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;;
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*)
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URL="" # Default URL - TODO get dummy picture
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;;
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esac
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# Iptv plugin listens this port
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PORT=${2}
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# Stream temporary files
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IMAGE=/tmp/image.png
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LOG=/dev/null
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{
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# Using wget because ffmpeg cannot handle http/1.1 "Transfer-Encoding: chunked"
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wget -q -O "${IMAGE}" "${URL}"
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# Build stream from audiodump with cycle image as video
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# PID 0x100/256 = Video 0x101/257 = Audio
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exec ffmpeg -v 10 \
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-analyzeduration 0 \
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-loop_input \
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-i "${IMAGE}" \
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-f mpegts -r 25 -vcodec mpeg2video -b 4000k -s 664x540 -padleft 20 -padright 20 -padtop 16 -padbottom 20 \
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-an \
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"udp://127.0.0.1:${PORT}?pkt_size=16356"
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} > ${LOG} 2>&1
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