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vdr-plugin-iptv/iptv/webcam.sh

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#!/bin/sh
# webcam.sh is used by the VDR iptv plugin to transcode an internet radio
# stream remuxed with images (e.g. webcam) to provide a video stream.
#
# The script originates from:
# http://www.vdr-wiki.de/wiki/index.php/Iptv-plugin
#
# An example channels.conf entry:
# webcam;IPTV:3:IPTV|S0P0|EXT|webcam.sh|0:P:0:256:257:0:0:3:0:0:0
#
# webcam.sh is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This package is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this package; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
# MA 02110-1301, USA.
#
if [ $# -ne 2 ]; then
logger "$0: error: Invalid parameter count '$#' $*"
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exit 1
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fi
# Channels.conf parameter
PARAMETER=${1}
# Iptv plugin listens this port
PORT=${2}
# Stream configuration
URL="http://stream.address"
IMAGE="image.jpg"
TITLE="webcam"
# Stream temporary files
FIFO=/tmp/webcam.fifo
LOG=/dev/null
{
rm -f "${FIFO}"
mkfifo "${FIFO}"
mplayer -dumpstream "${URL}" \
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-quiet -nolirc -noautosub -noconsolecontrols -novideo -nojoystick \
-dumpfile "${FIFO}" &
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# Time to connect and fill pipe
sleep 3
# Build stream from audiodump with cycle image as video
# PID 0x100/256 = Video 0x101/257 = Audio
ffmpeg -v -1 \
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-i "${FIFO}" -r 0.5 -loop_input -i '${IMAGE}' \
-title "${TITLE}" \
-f mpegts -intra -r 24 -vcodec mpeg2video -b 500k -s 352x288 \
-acodec mp2 -ac 2 -ab 96k -ar 48000 \
- | nc -u 127.0.0.1 ${PORT}
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rm -f "${FIFO}"
} > ${LOG} 2>&1