当前位置：文江博客话题详情

Tkinter 中 GStreamer 的视频输出？

发布于 2024-10-16 15:07:49 字数 108 浏览 1 评论 0原文

有谁知道我将如何使用 tkinter 窗口作为 python 内的视频接收器/管道的输出？我已经找到了许多其他 GUI 系统的方法，但我不想必须同时使用 tkinter 和其他东西 xxx 预先感谢 x

原文

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

小帐篷 2024-10-23 15:07:49

这对我在 Windows 32 位上有效。我在 Linux 或 Windows 64 位上遇到段错误。抱歉，我不知道Mac。

您必须使用 bus.connect("sync-message::element", on_sync_message) 并传递 Tk 小部件 ID (winfo_id)，如下所示代码。容器可以是任何 Tk 小部件，但纯黑框架似乎最适合我。

import sys, os
from Tkinter import *
import pygst
pygst.require("0.10")
import gst


def start():
        player.set_property('video-sink', None)
        player.set_property("uri", "file:///" + sys.argv[1])
        player.set_state(gst.STATE_PLAYING)

def on_sync_message(bus, message):
        if message.structure is None:
                return
        message_name = message.structure.get_name()
        if message_name == "prepare-xwindow-id":
                imagesink = message.src
                imagesink.set_property("force-aspect-ratio", True)
                imagesink.set_xwindow_id(mwin_id)

window = Tk()
window.geometry("500x400")
movie_window = Frame(window,bg='#000000')
movie_window.pack(side=BOTTOM,anchor=S,expand=YES,fill=BOTH)

mwin_id = movie_window.winfo_id()

player = gst.element_factory_make("playbin2", "player")
fakesink = gst.element_factory_make('fakesink', 'novideo')
player.set_property('video-sink', fakesink)

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

start()
window.mainloop()

This works for me on Windows 32-bit. I get a seg fault on Linux or Windows 64-bit. Sorry, I don't know about Mac.

You have to use bus.connect("sync-message::element", on_sync_message) and pass a Tk widget ID (winfo_id), as you can see in the following code. The container can be any Tk widget, but a solid black frame seems to work best for me.

import sys, os
from Tkinter import *
import pygst
pygst.require("0.10")
import gst


def start():
        player.set_property('video-sink', None)
        player.set_property("uri", "file:///" + sys.argv[1])
        player.set_state(gst.STATE_PLAYING)

def on_sync_message(bus, message):
        if message.structure is None:
                return
        message_name = message.structure.get_name()
        if message_name == "prepare-xwindow-id":
                imagesink = message.src
                imagesink.set_property("force-aspect-ratio", True)
                imagesink.set_xwindow_id(mwin_id)

window = Tk()
window.geometry("500x400")
movie_window = Frame(window,bg='#000000')
movie_window.pack(side=BOTTOM,anchor=S,expand=YES,fill=BOTH)

mwin_id = movie_window.winfo_id()

player = gst.element_factory_make("playbin2", "player")
fakesink = gst.element_factory_make('fakesink', 'novideo')
player.set_property('video-sink', fakesink)

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

start()
window.mainloop()

回复收藏 0 原文

~没有更多了~