Files
DemonEditor/app/tools/media.py
2020-01-16 14:08:34 +03:00

108 lines
3.7 KiB
Python

import sys
from app.commons import run_task, log
class Player:
__VLC_INSTANCE = None
def __init__(self, rewind_callback, position_callback, error_callback, playing_callback):
try:
from app.tools import vlc
from app.tools.vlc import EventType
except OSError as e:
log("{}: Load library error: {}".format(__class__.__name__, e))
raise ImportError
else:
self._is_playing = False
args = "--quiet {}".format("" if sys.platform == "darwin" else "--no-xlib")
self._player = vlc.Instance(args).media_player_new()
ev_mgr = self._player.event_manager()
if rewind_callback:
# TODO look other EventType options
ev_mgr.event_attach(EventType.MediaPlayerBuffering,
lambda et, p: rewind_callback(p.get_media().get_duration()),
self._player)
if position_callback:
ev_mgr.event_attach(EventType.MediaPlayerTimeChanged,
lambda et, p: position_callback(p.get_time()),
self._player)
if error_callback:
ev_mgr.event_attach(EventType.MediaPlayerEncounteredError,
lambda et, p: error_callback(),
self._player)
if playing_callback:
ev_mgr.event_attach(EventType.MediaPlayerPlaying,
lambda et, p: playing_callback(),
self._player)
@classmethod
def get_instance(cls, rewind_callback=None, position_callback=None, error_callback=None, playing_callback=None):
if not cls.__VLC_INSTANCE:
cls.__VLC_INSTANCE = Player(rewind_callback, position_callback, error_callback, playing_callback)
return cls.__VLC_INSTANCE
@run_task
def play(self, mrl=None):
if mrl:
self._player.set_mrl(mrl)
self._player.play()
self._is_playing = True
@run_task
def stop(self):
if self._is_playing:
self._player.stop()
self._is_playing = False
def pause(self):
self._player.pause()
def set_time(self, time):
self._player.set_time(time)
@run_task
def release(self):
if self._player:
self._is_playing = False
self._player.stop()
self._player.release()
def set_xwindow(self, xid):
self._player.set_xwindow(xid)
def set_nso(self, widget):
""" Used on MacOS to set NSObject.
Based on gtkvlc.py[get_window_pointer] example from here:
https://github.com/oaubert/python-vlc/tree/master/examples
"""
try:
import ctypes
g_dll = ctypes.CDLL("libgdk-3.0.dylib")
except OSError as e:
log("{}: Load library error: {}".format(__class__.__name__, e))
else:
get_nsview = g_dll.gdk_quartz_window_get_nsview
get_nsview.restype, get_nsview.argtypes = ctypes.c_void_p, [ctypes.c_void_p]
ctypes.pythonapi.PyCapsule_GetPointer.restype = ctypes.c_void_p
ctypes.pythonapi.PyCapsule_GetPointer.argtypes = [ctypes.py_object]
# Get the C void* pointer to the window
pointer = ctypes.pythonapi.PyCapsule_GetPointer(widget.get_window().__gpointer__, None)
self._player.set_nsobject(get_nsview(pointer))
def set_mrl(self, mrl):
self._player.set_mrl(mrl)
def is_playing(self):
return self._is_playing
def set_full_screen(self, full):
self._player.set_fullscreen(full)
if __name__ == "__main__":
pass