Tkinter 中用Frame插件来播放视频

Frame插件主要有三种用途:1. 布局窗体 2. 装饰 3. 播放视频的容器

Reference: https://stackoverflow.com/questions/7227162/way-to-play-video-files-in-tkinter

使用tkinter创建GUI来播放视频,另外需要 python-gstreamer 和 python-gobject, 两个模块。

代码1

import os
import sys
import Tkinter as tkinter

import gobject
import gst

def on_sync_message(bus, message, window_id):
        if not message.structure is None:
            if message.structure.get_name() == 'prepare-xwindow-id':
                image_sink = message.src
                image_sink.set_property('force-aspect-ratio', True)
                image_sink.set_xwindow_id(window_id)

gobject.threads_init()

window = tkinter.Tk()
window.geometry('500x400')

video = tkinter.Frame(window, bg='#000000')
video.pack(side=tkinter.BOTTOM,anchor=tkinter.S,expand=tkinter.YES,fill=tkinter.BOTH)

window_id = video.winfo_id()

player = gst.element_factory_make('playbin2', 'player')
player.set_property('video-sink', None)
player.set_property('uri', 'file://%s' % (os.path.abspath(sys.argv[1])))
player.set_state(gst.STATE_PLAYING)

bus = player.get_bus()
bus.add_signal_watch()
bus.enable_sync_message_emission()
bus.connect('sync-message::element', on_sync_message, window_id)

window.mainloop()

代码2

import sys
import os

if sys.version_info[0] < 3:
    import Tkinter as tkinter
else:
    import tkinter

import gi
gi.require_version('Gst', '1.0')
from gi.repository import Gst, GObject

# Needed for set_window_handle():
gi.require_version('GstVideo', '1.0')
from gi.repository import GstVideo

def set_frame_handle(bus, message, frame_id):
    if not message.get_structure() is None:
        if message.get_structure().get_name() == 'prepare-window-handle':
            display_frame = message.src
            display_frame.set_property('force-aspect-ratio', True)
            display_frame.set_window_handle(frame_id)

NUMBER_OF_FRAMES = 8 # with more frames than arguments, videos are repeated
relative_height = 1 / float(NUMBER_OF_FRAMES)

# Only argument number checked, not validity.
number_of_file_names_given = len(sys.argv) - 1
if number_of_file_names_given < 1:
    print('Give at least one video file name.')
    sys.exit()
if number_of_file_names_given < NUMBER_OF_FRAMES:
    print('Up to', NUMBER_OF_FRAMES, 'video file names can be given.')
file_names = list()
for index in range(number_of_file_names_given):
    file_names.append(sys.argv[index + 1])

window = tkinter.Tk()
window.title("Multiple videos in a column using Tk and GST 1.0")
window.geometry('480x960')

Gst.init(None)
GObject.threads_init()

for number in range(NUMBER_OF_FRAMES):
    display_frame = tkinter.Frame(window, bg='')
    relative_y = number * relative_height
    display_frame.place(relx = 0, rely = relative_y,
            anchor = tkinter.NW, relwidth = 1, relheight = relative_height)
    frame_id = display_frame.winfo_id()

    player = Gst.ElementFactory.make('playbin', None)
    fullname = os.path.abspath(file_names[number % len(file_names)])
    player.set_property('uri', 'file://%s' % fullname)
    player.set_state(Gst.State.PLAYING)

    bus = player.get_bus()
    bus.enable_sync_message_emission()
    bus.connect('sync-message::element', set_frame_handle, frame_id)

window.mainloop()
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