def test_send_keyframe(self):
"""
Ask for a keyframe.
"""
transport = FakeDtlsTransport()
sender = RTCRtpSender(VideoStreamTrack(), transport)
self.assertEqual(sender.kind, 'video')
self.assertEqual(sender.transport, transport)
run(
sender.send(
RTCRtpParameters(codecs=[
RTCRtpCodecParameters(
name='VP8', clockRate=90000, payloadType=100),
])))
# wait for one packet to be transmitted, and ask for keyframe
packet = run(transport.queue.get())
sender._send_keyframe()
# wait for packet to be transmitted
rtx_packet = run(transport.queue.get())
self.assertEqual(rtx_packet.sequence_number,
seq_plus_one(packet.sequence_number))
# clean shutdown
run(sender.stop())
def test_seq_plus_one(self):
self.assertEqual(seq_plus_one(0), 1)
self.assertEqual(seq_plus_one(1), 2)
self.assertEqual(seq_plus_one(65535), 0)
