使用 gstreamer 的 Rtsp 流 python mss 屏幕截图

如何解决使用 gstreamer 的 Rtsp 流 python mss 屏幕截图

从 rtsp 播放器观看时没有流内容。

• 我使用 python mss 捕获了屏幕，

• 转换为 opencv 框架并尝试使用 gstreamer 进行直播

• ffplay rtsp://127.0.0.1:8554/test 不播放任何流，也不给出任何错误。

• 我发现了类似的示例，其中包含来自 rtsp 摄像头和本地视频文件的输入。Write opencv frames into gstreamer rtsp server pipeline

#!/usr/bin/env python3

import cv2
import gi
import mss
import numpy as np

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



class SensorFactory(GstRtspServer.RTSPMediaFactory):
****

def on_need_data(self,src,lenght):
    monitor = {"top": 120,"left": 280,"width": 640,"height": 480}
    
    with mss.mss() as sct:
        while True:
            grab = sct.grab(monitor)
            img = np.array(grab)
            img = cv2.resize(img,(640,480))
            # frame = img
            frame = cv2.cvtColor(img,cv2.COLOR_RGB2BGR)
            frame = cv2.cvtColor(frame,cv2.COLOR_BGR2RGB)
            data = frame.tostring()
            buf = Gst.Buffer.new_allocate(None,len(data),None)
            buf.fill(0,data)
            buf.duration = self.duration
            timestamp = self.number_frames * self.duration
            buf.pts = buf.dts = int(timestamp)
            buf.offset = timestamp
            self.number_frames += 1
            retval = src.emit("push-buffer",buf)
            print(
                "pushed buffer,frame {},duration {} ns,durations {} s".format(
                    self.number_frames,self.duration,self.duration / Gst.SECOND
                )
            )
            if retval != Gst.FlowReturn.OK:
                print(retval)

    def do_create_element(self,url):
        ****
    def do_configure(self,rtsp_media):
        ****


    class GstServer(GstRtspServer.RTSPServer):
        ****