#!/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 "$0: error: Invalid parameter count '$#' $*" exit 1 fi # Channels.conf parameter PARAMETER=${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}" \ -quiet -nolirc -noautosub -noconsolecontrols -novideo -nojoystick \ -dumpfile "${FIFO}" & # Time to connect and fill pipe sleep 3 # Build stream from audiodump with cycle image as video # PID 0x100/256 = Video 0x101/257 = Audio ffmpeg -v -1 \ -i "${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 \ "udp://127.0.0.1:${PORT}?pkt_size=16356" rm -f "${FIFO}" } > ${LOG} 2>&1