Set the callback that notifies you when a new video frame is available, or
if the video display configuration somehow changed and requires a redraw.
Similar to mpv_set_wakeup_callback(), you must not call any mpv API from
the callback, and all the other listed restrictions apply (such as not
exiting the callback by throwing exceptions).
@param callback callback(callback_ctx) is called if the frame should be
redrawn
@param callback_ctx opaque argument to the callback
Set the callback that notifies you when a new video frame is available, or if the video display configuration somehow changed and requires a redraw. Similar to mpv_set_wakeup_callback(), you must not call any mpv API from the callback, and all the other listed restrictions apply (such as not exiting the callback by throwing exceptions).
@param callback callback(callback_ctx) is called if the frame should be redrawn @param callback_ctx opaque argument to the callback