Fixed setting parameters when protocol changes (Thanks to Peter Holik for reporting this one).

Updated example scripts to use ffmpeg's direct UDP output and added a new "image.sh" script (Thanks to Peter Holik).

HISTORY

@@ -104,3 +104,7 @@ VDR Plugin 'iptv' Revision History
 2009-xx-xx: Version 0.3.0
 
 - Added iptvstream-notrap.sh script.
+- Fixed setting parameters when protocol changes
+  (Thanks to Peter Holik for reporting this one).
+- Updated example scripts to use ffmpeg's direct UDP output
+  and added a new "image.sh" script (Thanks to Peter Holik).

iptv/image.sh

@@ -0,0 +1,84 @@
+#!/bin/sh
+
+set -e
+
+# image.sh is used by the VDR iptv plugin to transcode images from
+# a web server to provide a video stream.
+#
+# The script originates from Peter Holik
+#
+# Example channels.conf entries:
+# Energy;IPTV:50:IPTV|S0P0|EXT|png.sh|1:P:0:256:257:0:0:3:0:0:0
+# Temperature;IPTV:60:IPTV|S0P0|EXT|png.sh|2:P:0:256:257:0:0:3:0:0:0
+# Temperature Week;IPTV:70:IPTV|S0P0|EXT|png.sh|3:P:0:256:257:0:0:3:0:0:0
+# Server Temperature;IPTV:80:IPTV|S0P0|EXT|png.sh|4:P:0:256:257:0:0:3:0:0:0
+# Server Temperature Week;IPTV:90:IPTV|S0P0|EXT|png.sh|5:P:0:256:257:0:0:3:0:0:0
+# Traffic;IPTV:100:IPTV|S0P0|EXT|png.sh|6: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
+case ${1} in
+    1)
+        URL="http://proxy/cgi-bin/bin/graph.cgi?hostname=proxy;plugin=energy;type=electricity"
+        ;;
+    2)
+        URL="http://proxy/cgi-bin/bin/graph.cgi?hostname=proxy;plugin=temp;type=temperature;type_instance=Outdoor"
+        ;;
+    3)
+        URL="http://proxy/cgi-bin/bin/graph.cgi?hostname=proxy;plugin=temp;type=temperature;type_instance=Outdoor;begin=-604800"
+        ;;
+    4)
+        URL="http://proxy/cgi-bin/bin/graph.cgi?hostname=proxy;plugin=temp;type=temperature;type_instance=Server"
+        ;;
+    5)
+        URL="http://proxy/cgi-bin/bin/graph.cgi?hostname=proxy;plugin=temp;type=temperature;type_instance=Server;begin=-604800"
+        ;;
+    6)
+        URL="http://proxy/cgi-bin/bin/graph.cgi?hostname=proxy;plugin=interface;type=if_octets;type_instance=ppp0"
+        ;;
+    *)
+        URL=""  # Default URL - TODO get dummy picture
+        ;;
+esac
+
+# Iptv plugin listens this port
+PORT=${2}
+
+# Stream temporary files
+IMAGE=/tmp/image.png
+LOG=/dev/null
+
+{
+# Using wget because ffmpeg cannot handle http/1.1 "Transfer-Encoding: chunked"
+wget -q -O "${IMAGE}" "${URL}"
+
+# Build stream from audiodump with cycle image as video
+# PID 0x100/256 = Video 0x101/257 = Audio
+exec ffmpeg -v 10 \
+  -analyzeduration 0 \
+  -loop_input \
+  -i "${IMAGE}" \
+  -f mpegts -r 25 -vcodec mpeg2video -b 4000k -s 664x540 -padleft 20 -padright 20 -padtop 16 -padbottom 20 \
+  -an \
+  "udp://127.0.0.1:${PORT}?pkt_size=16356"
+} > ${LOG} 2>&1

iptv/internetradio.sh

@@ -61,7 +61,7 @@ ffmpeg -v -1 \
   -i "${FIFO}" \
   -title "${TITLE}" \
   -f mpegts -acodec mp2 -ac 2 -ab 96k -ar 48000 \
-  - | nc -u 127.0.0.1 ${PORT}
+  "udp://127.0.0.1:${PORT}?pkt_size=16356"
 
 rm -f "${FIFO}"
 } > ${LOG} 2>&1

iptv/linein.sh

@@ -50,5 +50,5 @@ ffmpeg -v -1 \
   -i - \
   -title "${TITLE}" \
   -f mpegts -acodec mp2 -ac 2 -ab 128k -ar 48000 \
-  - | nc -nu 127.0.0.1 ${PORT}
+  "udp://127.0.0.1:${PORT}?pkt_size=16356"
 } > ${LOG} 2>&1

iptv/webcam.sh

@@ -63,7 +63,7 @@ ffmpeg -v -1 \
   -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 ${PORT}
+  "udp://127.0.0.1:${PORT}?pkt_size=16356"
 
 rm -f "${FIFO}"
 } > ${LOG} 2>&1

streamer.c

@@ -89,16 +89,17 @@ bool cIptvStreamer::Set(const char* Location, const int Parameter, const int Ind
 {
   debug("cIptvStreamer::Set(): %s:%d\n", Location, Parameter);
   if (!isempty(Location)) {
-     // Update protocol; Close the existing one if changed
+     // Update protocol and set location and parameter; Close the existing one if changed
      if (protocol != Protocol) {
         if (protocol)
            protocol->Close();
         protocol = Protocol;
-        if (protocol)
+        if (protocol) {
+           protocol->Set(Location, Parameter, Index);
            protocol->Open();
+           }
         }
-     // Set protocol location and parameter
-     if (protocol)
+     else if (protocol)
         protocol->Set(Location, Parameter, Index);
      }
   return true;