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webrtc_sendrecv.py: Add bus message handling

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3742>
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Nirbheek Chauhan 2023-01-18 07:36:21 +05:30 committed by GStreamer Marge Bot
parent 9b2404e76d
commit 5500c228f6
1 changed files with 17 additions and 0 deletions
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17
subprojects/gst-examples/webrtc/sendrecv/gst/webrtc_sendrecv.py
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@ -129,6 +129,21 @@ class WebRTCClient:
def send_soon(self, msg):
asyncio.run_coroutine_threadsafe(self.send(msg), self.event_loop)
def on_bus_poll_cb(self, bus):
def remove_bus_poll():
self.event_loop.remove_reader(bus.get_pollfd().fd)
self.event_loop.stop()
while bus.peek():
msg = bus.pop()
if msg.type == Gst.MessageType.ERROR:
err = msg.parse_error()
print("ERROR:", err.gerror, err.debug)
remove_bus_poll()
break
elif msg.type == Gst.MessageType.EOS:
remove_bus_poll()
break
def send_sdp(self, offer):
text = offer.sdp.as_text()
if offer.type == GstWebRTC.WebRTCSDPType.OFFER:
@ -208,6 +223,8 @@ class WebRTCClient:
def start_pipeline(self, create_offer=True, audio_pt=96, video_pt=97):
print_status(f'Creating pipeline, create_offer: {create_offer}')
self.pipe = Gst.parse_launch(PIPELINE_DESC[self.video_encoding].format(video_pt=video_pt, audio_pt=audio_pt))
bus = self.pipe.get_bus()
self.event_loop.add_reader(bus.get_pollfd().fd, self.on_bus_poll_cb, bus)
self.webrtc = self.pipe.get_by_name('sendrecv')
self.webrtc.connect('on-negotiation-needed', self.on_negotiation_needed, create_offer)
self.webrtc.connect('on-ice-candidate', self.send_ice_candidate_message)