Example : i have video1 and video2, i want to stream these 2 as
rtsp://127.0.0.1:8012/video1 and rtsp://127.0.0.1:8012/video2
i am using below code for creating single rtsp stream:
#!/usr/bin/env python3
import cv2
import gi
gi.require_version('Gst', '1.0')
gi.require_version('GstRtspServer', '1.0')
from gi.repository import Gst, GstRtspServer, GObject
##Overwriting Sensor factory class in local
class SensorFactory(GstRtspServer.RTSPMediaFactory):
def __init__(self, **properties):
super(SensorFactory, self).__init__(**properties)
self.cap = cv2.VideoCapture(0)
self.number_frames = 0
self.fps = 30
self.duration = 1 / self.fps * Gst.SECOND # duration of a frame in
nanoseconds
##pipeline for transfering each frame as rtsp stream
self.launch_string = 'appsrc name=source is-live=true block=true
format=GST_FORMAT_TIME ' \
'caps=video/x-raw,format=BGR,width=600,height=600,framerate={}/1 ' \
'! videoconvert ! video/x-raw,format=I420 ' \
'! x264enc speed-preset=ultrafast
tune=zerolatency ' \
'! rtph264pay config-interval=1 name=pay0
pt=96'.format(self.fps)
#when need buffer data , read each frame and encode and add to buffer
def on_need_data(self, src, lenght):
if self.cap.isOpened():
ret, frame = self.cap.read()
if ret:
frame=cv2.resize(frame,(600,600))
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):
return Gst.parse_launch(self.launch_string)
def do_configure(self, rtsp_media):
self.number_frames = 0
appsrc = rtsp_media.get_element().get_child_by_name('source')
appsrc.connect('need-data', self.on_need_data)
##overwriting gst server class,add new factory
class GstServer(GstRtspServer.RTSPServer):
def __init__(self, **properties):
super(GstServer, self).__init__(**properties)
#setting port to 8012, default port is 8554
self.set_service("8012")
self.gst_rtsp_media_factory_set_shared()
self.factory = SensorFactory()
self.factory.set_shared(True)
self.get_mount_points().add_factory("/test1", self.factory)
self.attach(None)
GObject.threads_init()
Gst.init(None)
server = GstServer()
loop = GObject.MainLoop()
loop.run()
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