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vdr-plugin-iptv/iptv/iptvstream.sh

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#!/bin/sh
#
# iptvstream.sh can be used by the VDR iptv plugin to transcode external
# sources
#
# (C) 2007 Rolf Ahrenberg, Antti Seppälä
#
# iptvstream.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 "$0: error: Invalid parameter count '$#' $*"
exit 1
fi
# Channels.conf parameter
PARAMETER=${1}
# Iptv plugin listens this port
PORT=${2}
# Default settings for stream transcoding
VCODEC=mp2v
VBITRATE=2400
ACODEC=mpga
ABITRATE=320
# There is a way to specify multiple URLs in the same script. The selection is
# then controlled by the extra parameter passed by IPTV plugin to the script
case ${PARAMETER} in
1)
URL=""
WIDTH=720
HEIGHT=576
FPS=25
;;
2)
URL=""
;;
3)
URL=""
;;
*)
URL="" # Default URL
;;
esac
if [ -z "${URL}" ]; then
logger "$0: error: URL not defined!"
exit 1
fi
# Create transcoding options
TRANSCODE_OPTS="vcodec=${VCODEC},acodec=${ACODEC},vb=${VBITRATE},ab=${ABITRATE}"
if [ -n "${WIDTH}" -a -n "${HEIGHT}" ] ; then
TRANSCODE_OPTS="${TRANSCODE_OPTS},width=${WIDTH},height=${HEIGHT}"
fi
if [ -n "${FPS}" ] ; then
TRANSCODE_OPTS="${TRANSCODE_OPTS},fps=${FPS}"
fi
# Create unique pids for the stream
let VPID=${PARAMETER}+1
let APID=${PARAMETER}+2
let SPID=${PARAMETER}+3
# Capture VLC pid for further management in IPTV plugin
vlc "${URL}" --sout "#transcode{${TRANSCODE_OPTS}}:standard{access=udp,mux=ts{pid-video=${VPID},pid-audio=${APID},pid-spu=${SPID}},dst=127.0.0.1:${PORT}}" --intf dummy &
PID=${!}
trap 'kill -INT ${PID} 2> /dev/null' INT EXIT QUIT TERM
# Waiting for the given PID to terminate
wait ${PID}