feat: camera support, using mpv as backend

it should be able to play any video or stream that mpv itself can handle

close #67 close #129

docs/Configuration.md

@@ -90,6 +90,9 @@ screw_rotation: 0
 # Define distances and speeds for the extrude panel. CSV list 2 to 4 integers
 extrude_distances: 5, 10, 15, 25
 extrude_speeds: 1, 2, 5, 25
+
+# Camera configuration
+camera_url: http://127.0.0.1/webcam/?action=stream
 ```
 
 ## Preheat Options

ks_includes/config.py

@@ -165,7 +165,7 @@ class KlipperScreenConfig:
                 strs = (
                     'moonraker_api_key', 'moonraker_host', 'titlebar_name_type',
                     'screw_positions', 'power_devices', 'titlebar_items', 'z_babystep_values',
-                    'extrude_distances', "extrude_speeds",
+                    'extrude_distances', "extrude_speeds", "camera_url",
                 )
                 numbers = (
                     'moonraker_port', 'move_speed_xy', 'move_speed_z',

ks_includes/defaults.conf

@@ -128,6 +128,12 @@ icon: motor-off
 method: printer.gcode.script
 params: {"script":"M18"}
 
+[menu __main actions camera]
+name: {{ gettext('Camera') }}
+icon: camera
+panel: camera
+enable: {{ camera_configured }}
+
 [menu __main actions console]
 name: {{ gettext('Console') }}
 icon: console
@@ -231,6 +237,13 @@ icon: custom-script
 panel: gcode_macros
 enable: {{ printer.gcode_macros.count > 0 }}
 
+
+[menu __print camera]
+name: {{ gettext('Camera') }}
+icon: camera
+panel: camera
+enable: {{ camera_configured }}
+
 [menu __print console]
 name: {{ gettext('Console') }}
 icon: console

panels/camera.py

@@ -0,0 +1,85 @@
+import mpv
+import logging
+import gi
+
+gi.require_version("Gtk", "3.0")
+from gi.repository import Gtk, Gdk
+
+from ks_includes.screen_panel import ScreenPanel
+
+
+def create_panel(*args):
+    return CameraPanel(*args)
+
+
+class CameraPanel(ScreenPanel):
+    def __init__(self, screen, title):
+        super().__init__(screen, title)
+        self.mpv = None
+        self.da = Gtk.DrawingArea()
+        self.da.set_hexpand(True)
+        self.da.set_vexpand(True)
+        fs = self._gtk.Button("move", _("Fullscreen"), None, self.bts, Gtk.PositionType.LEFT, 1)
+        fs.connect("clicked", self.play)
+        fs.set_hexpand(True)
+        fs.set_vexpand(False)
+        box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
+        box.add(self.da)
+        box.add(fs)
+        self.content.add(box)
+        self.content.show_all()
+        self.url = self.ks_printer_cfg.get("camera_url", "http://127.0.0.1/webcam/?action=stream").replace('"', '')
+        logging.debug(f"Camera URL: {self.url}")
+        # wayland has no primary monitor with that we can detect it
+        self.wayland = Gdk.Display.get_default().get_primary_monitor() is None
+        # gpu output driver doesn't work on a pi3 and the autoselected sdl doesn't size correctly
+        # consider adding a software switch to enable the gpu backend if set by the user
+        self.vo = 'x11' if self.wayland else 'wlshm'
+
+    def activate(self):
+        self.play()
+
+    def deactivate(self):
+        if self.mpv:
+            self.mpv.terminate()
+            self.mpv = None
+
+    def play(self, fs=None):
+        # Create mpv after show or the 'window' property will be None
+        self.mpv = mpv.MPV(
+            log_handler=self.log,
+            vo=self.vo,
+            profile='sw-fast',
+        )
+        # On wayland mpv cannot be embedded at least for now
+        # https://github.com/mpv-player/mpv/issues/9654
+        if fs or self.wayland:
+            self.mpv.fullscreen = True
+
+            @self.mpv.on_key_press('MBTN_LEFT' or 'MBTN_LEFT_DBL')
+            def clicked():
+                self.mpv.quit(0)
+        else:
+            self.mpv.wid = f'{self.da.get_property("window").get_xid()}'
+
+            @self.mpv.on_key_press('MBTN_LEFT' or 'MBTN_LEFT_DBL')
+            def clicked():
+                self._screen.show_popup_message(self.url, level=1)
+        self.mpv.play(self.url)
+        if fs or self.wayland:
+            try:
+                self.mpv.wait_for_playback()
+            except mpv.ShutdownError:
+                logging.info('Exiting Fullscreen')
+            except Exception as e:
+                logging.exception(e)
+            self.mpv.terminate()
+            self.mpv = None
+            if self.wayland:
+                self._screen._menu_go_back()
+            else:
+                self.play()
+
+    @staticmethod
+    def log(loglevel, component, message):
+        logging.debug(f'[{loglevel}] {component}: {message}')

panels/menu.py

@@ -31,10 +31,6 @@ class MenuPanel(ScreenPanel):
         self.content.add(scroll)
 
     def activate(self):
-        self.j2_data = self._printer.get_printer_status_data()
-        self.j2_data.update({
-            'moonraker_connected': self._screen._ws.connected
-        })
         if self._screen.vertical_mode:
             self.arrangeMenuItems(self.items, 3)
         else:
@@ -99,7 +95,8 @@ class MenuPanel(ScreenPanel):
         if enable == "{{ moonraker_connected }}":
             logging.info(f"moonraker connected {self._screen._ws.connected}")
             return self._screen._ws.connected
-
+        elif enable == "{{ camera_configured }}":
+            return self.ks_printer_cfg.get("camera_url", None) is not None
         self.j2_data = self._printer.get_printer_status_data()
         try:
             j2_temp = Template(enable, autoescape=True)

scripts/KlipperScreen-install.sh

@@ -9,11 +9,11 @@ FBDEV="xserver-xorg-video-fbdev"
 PYTHON="python3-virtualenv virtualenv python3-distutils"
 PYGOBJECT="libgirepository1.0-dev gcc libcairo2-dev pkg-config python3-dev gir1.2-gtk-3.0"
 MISC="librsvg2-common libopenjp2-7 libatlas-base-dev wireless-tools libdbus-glib-1-dev autoconf"
-OPTIONAL="xserver-xorg-legacy fonts-nanum fonts-ipafont"
+OPTIONAL="xserver-xorg-legacy fonts-nanum fonts-ipafont, libmpv-dev"
 
 # moonraker will check this list when updating
 # if new packages are required for existing installs add them below too.
-PKGLIST="libdbus-glib-1-dev autoconf fonts-ipafont"
+PKGLIST="libdbus-glib-1-dev autoconf fonts-ipafont, libmpv-dev"
 
 Red='\033[0;31m'
 Green='\033[0;32m'

scripts/KlipperScreen-requirements.txt

@@ -4,4 +4,5 @@ requests==2.28.1
 websocket-client==1.4.2
 pycairo==1.22.0
 PyGObject==3.42.2
-python-networkmanager==2.2
+python-networkmanager==2.2
+python-mpv==0.5.2