UIBC support

Basic support for UIBC (single mouse events and key events)

 - Option --uibc on miracle-sinkctl to enable it
 - Option --log-journal-level to see player execution on journalctl
 - Controller for uibc miracle-uibcctl
 - Player based on PyGtk to receive and communicate mouse and keyevents

closes #57

res/miracle-gst

@@ -0,0 +1,100 @@
+#!/bin/bash
+
+function help {
+   local scriptname="$(basename $0)"
+   cat >&2 <<EOF
+
+$scriptname [options]
+
+play rtp stream
+
+Options:
+   -r                   Resolution
+   -s <Width>x<height>  Scale
+   -d <level>           Log level for gst
+   -p <port>            Port for stream
+   -a                   Enables audio
+   -h                   Show this help
+
+Examples:
+
+ # play stream on port 7236
+ $ $scriptname -p 7236
+ # play stream with resolution 800x600
+ $ $scriptname -s 800x600
+ # play stream with audio
+ $ $scriptname -a
+ # play stream with debug level 3
+ $ $scriptname -d 3
+
+EOF
+}
+
+DEBUG='0'
+AUDIO='0'
+SCALE='0'
+
+while getopts "r:d:as:p:h" optname
+  do
+    case "$optname" in
+      "h")
+        help
+        exit 0
+        ;;
+      "d")
+        DEBUG=`echo ${OPTARG} | tr -d ' '`
+        ;;
+      "r")
+        RESOLUTION=`echo ${OPTARG} | tr -d ' '`
+        ;;
+      "a")
+        AUDIO='1'
+        ;;
+      "p")
+        PORT=`echo ${OPTARG} | tr -d ' '`
+        ;;
+      "s")
+        SCALE='1'
+        WIDTH=`echo ${OPTARG} | tr -d ' ' | cut -dx -f 1`
+        HEIGHT=`echo ${OPTARG} | tr -d ' ' | cut -dx -f 2`
+        ;;
+      "?")
+        echo "Unknown option $OPTARG"
+        ;;
+      *)
+        echo "Unknown parameter $OPTARG"
+        help
+        exit 1
+        ;;
+    esac
+  done
+
+RUN="/usr/bin/gst-launch-1.0 -v "
+if [ $DEBUG != '0' ]
+then
+  RUN+="--gst-debug=${DEBUG} "
+fi
+
+RUN+="udpsrc port=$PORT caps=\"application/x-rtp, media=video\" ! rtpjitterbuffer latency=100 ! rtpmp2tdepay ! tsdemux "
+
+if [ $AUDIO == '1' ]
+then
+  RUN+="name=demuxer demuxer. "
+fi
+
+RUN+="! queue max-size-buffers=0 max-size-time=0 ! h264parse ! avdec_h264 ! videoconvert ! "
+
+if [ $SCALE == '1' ]
+then
+  RUN+="videoscale method=1 ! video/x-raw,width=${WIDTH},height=${HEIGHT} ! "
+fi
+
+RUN+="autovideosink "
+
+if [ $AUDIO == '1' ]
+then
+  RUN+="demuxer. ! queue max-size-buffers=0 max-size-time=0 ! aacparse ! avdec_aac ! audioconvert ! audioresample ! autoaudiosink "
+fi
+
+echo "running: $RUN"
+exec ${RUN}