habilitando conexion agnostica orientada a IP

librecast

 #!/usr/bin/env bash
 
-SIZE_STRING=$(xdpyinfo | awk '/dimensions/{print $2}')
-echo "detectando resolución $SIZE_STRING"
-# aqui se deberia detectar pantallas dobles o demasiado grandes
-# para mostrar solo una porcion via cropping
-SCREEN_WIDTH="$(cut -d'x' -f1 <<<"$SIZE_STRING")"
-SCREEN_HEIGHT="$(cut -d'x' -f2 <<<"$SIZE_STRING")"
-AP_NAME=libreCast-s1
-
+AP_ADDRESS=192.168.12.1
+# legacy, porque hemos empezado con la sala llamada libreCast-s1
 if [ $# -eq 1 ];then
-  AP_NAME=$1
+  AP_ADDRESS=$1
+fi
+
+if [ $# -eq 2 ];then
+  AP_NAME=$2
 fi
 
-echo "connectando a $AP_NAME"
+invocar_nmcli() {
+  echo "conectando a $AP_NAME"
+  nmcli con up $AP_NAME
+  if [ $? -eq 1 ];then
+    exit 1
+  fi
+}
 
-if [ -z `pidof gst-launch-1.0` ];then
+main() {
+  if [ -z "$(pidof gst-launch-1.0)" ] ;then
 
-  pkill -15 gst-launch-1.0
+    pkill -15 gst-launch-1.0
 
-  if which nmcli >/dev/null 2>&1; then
-    nmcli con up $AP_NAME 
-    if [ $? -eq 1 ];then
-      exit 1
+    # AP_NAME es necesario solo si se quiere usar Network Manager
+    # para la conexion automatica al AP wifi  
+    if [ -n "$AP_NAME" ] ;then
+      if [ which nmcli >/dev/null 2>&1 ] ; then
+        invocar_nmcli
+       else
+        echo "utilizando conexion manual"
+      fi
     fi
-  else
-    echo "El sistema no cuenta con nmcli"
-    echo "Es necesario configurar la conexión a $AP_NAME manualmente"
-  fi
 
-  # a transmission is not running yet from this machine 
-  curl --connect-timeout 3 -s -k -X GET https://192.168.12.1:5443/player/start | grep 'Player iniciado' 
-  if [ $? -eq 0 ];then
+    SIZE_STRING=$(xdpyinfo | awk '/dimensions/{print $2}')
+    SCREEN_WIDTH="$(cut -d'x' -f1 <<<"$SIZE_STRING")"
+    SCREEN_HEIGHT="$(cut -d'x' -f2 <<<"$SIZE_STRING")"
+    # por defecto no realizamos ningun recorte
+    CROP_STRING_X=""
+    CROP_STRING_Y=""
 
-    pacmd unload-module module-null-sink
-    pacmd load-module module-null-sink sink_name=libreCast
-    pacmd update-sink-proplist libreCast device.description=libreCast
-    pacmd set-default-sink libreCast
+    # en caso el ancho supere lo maximo consentido de 1920
+    if [ "$SCREEN_WIDTH" -gt 1920 ];then
+      echo "recortando el ancho de la pantalla ..."
+      SCREEN_WIDTH=1920
+      CROP_STRING_X="startx=0 endx=1919"
+      CROP_STRING_Y="starty=0 endy=$(( $SCREEN_HEIGHT-1 ))"
+    fi
+
+    # en caso el alto supere lo maximo consentido de 1080
+    if [ "$SCREEN_HEIGHT" -gt 1080 ];then
+      echo "recortando el alto de la pantalla..."
+      SCREEN_HEIGHT=1080
+      CROP_STRING_X="startx=0 endx=$(( $SCREEN_WIDTH-1 ))"
+      CROP_STRING_Y="starty=0 endy=1079"
+    fi
+
+    curl --connect-timeout 3 -s -k -X GET https://$AP_ADDRESS:5443/player/start | grep 'Player iniciado'
+    if [ $? -eq 0 ];then
+
+      pacmd unload-module module-null-sink
+      pacmd load-module module-null-sink sink_name=libreCast
+      pacmd update-sink-proplist libreCast device.description=libreCast
+      pacmd set-default-sink libreCast
+
+      gst-launch-1.0 ximagesrc use-damage=false $CROP_STRING_X $CROP_STRING_Y ! videoconvert ! videoscale ! video/x-raw,format=I420,width=$SCREEN_WIDTH,height=$SCREEN_HEIGHT,framerate=24/1,bitrate=6000 ! jpegenc quality=80 ! rtpjpegpay ! udpsink host=$AP_ADDRESS port=1234 sync=false &
+      gst-launch-1.0 -v pulsesrc device="libreCast.monitor" ! "audio/x-raw,rate=11500,channels=2,depth=16" ! udpsink host=$AP_ADDRESS port=5678 sync=false &
+      exit 0
+    else
+      # the player is already running or the player is not reachable
+      exit 1
+    fi
 
-    gst-launch-1.0 ximagesrc use-damage=false ! videoconvert ! videoscale ! video/x-raw,format=I420,width=$SCREEN_WIDTH,height=$SCREEN_HEIGHT,framerate=24/1,bitrate=6000 ! jpegenc quality=80 ! rtpjpegpay ! udpsink host=192.168.12.1 port=1234 sync=false & 
-    gst-launch-1.0 -v pulsesrc device="libreCast.monitor"  ! "audio/x-raw,rate=11500,channels=2,depth=16" ! udpsink host=192.168.12.1 port=5678 sync=false &
-    exit 0
   else
-    # the player is already running or the player is not reachable
-    exit 1
-  fi
 
-else
+    echo "stopping ..."
+    curl --connect-timeout 3 -s -k -X GET https://$AP_ADDRESS:5443/player/stop
+    pkill -15 gst-launch-1.0
+    pacmd unload-module module-null-sink
 
-  # a transmission is already running from this machine 
-  curl --connect-timeout 3 -s -k -X GET https://192.168.12.1:5443/player/stop
-  pkill -15 gst-launch-1.0
-  pacmd unload-module module-null-sink
+    if [ -n "$AP_NAME" ] ;then
+      if [ which nmcli >/dev/null 2>&1 ] ; then
+         nmcli con down $AP_NAME
+       else
+         echo "Por favor desconectarse de $AP_NAME"
+      fi
+    fi
 
-  if which nmcli >/dev/null 2>&1; then
-    nmcli con down $AP_NAME 
   fi
+}
 
-fi
-
+main