please provide a merged example of pyQt usage AND observer/key_press callbacks

[tempest766]

The Qt example works fine accept there is no documented indication how to implement the observers or key bindings. The example on observer/key-binding requires the player object to be global, which doesn't fit in with a well designed OO plan.

I can find no syntax for

@player.property_observer('time-pos') or @player.on_key_press('q')
that works as a class method where player is a class instance variable.

Alternately what observer/callbacks can be presented from the mpv module when run inside the pyQt event loop?

Are the two mutually incompatible? If so, it would be good to document that rather than rely purely on "documentation by example".

Thoughts?

[trin94]

You can use the following snippet:

class MyPlayer:

    def __init__(self):
        self.mpv = MPV(ytdl=True, vo='libmpv', terminal="yes", msg_level="all=v")
        self.mpv.observe_property("time-pos", self._on_player_time_pos_changed)

    def _on_player_time_pos_changed(self, property, value):
        if value:
            print("Player time-pos changed", property, value)

and the output will be:

Player time-pos changed time-pos 1.7919999999999998
Player time-pos changed time-pos 1.833
Player time-pos changed time-pos 1.875
Player time-pos changed time-pos 1.9169999999999998
Player time-pos changed time-pos 1.958
Player time-pos changed time-pos 2.0

[tempest766]

Thanks, that answers the question about observers, but what about passing mpv keybindings back to the mpv class for stuff like orderly exit?

When I hit 'Q' in the player window it needs to notify the mpv class so it can cleanly terminate the viewer and exit the app. It is unclear from the pydoc info whether the key_bindings function are callbacks to the mpv class, or just passthroughs to the player.

something like self.player.keybind('Q',self.done) doesn't execute the self.done method, but does terminated the mpv player itself when Q is pressed in player window.