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scripts/libraries: Fix RSTP library.
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@ -15,8 +15,8 @@ import network, omv, rtsp, sensor, time
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sensor.reset()
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sensor.set_pixformat(sensor.JPEG) # Only supported by the OV2640/OV5640.
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sensor.set_framesize(sensor.UXGA)
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sensor.set_pixformat(sensor.RGB565)
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sensor.set_framesize(sensor.VGA)
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# Turn off the frame buffer connection to the IDE from the OpenMV Cam side.
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#
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@ -45,10 +45,15 @@ server = rtsp.rtsp_server(network_if)
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# `session` is random number that will change when a new connection is established. You can use
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# session with a dictionary to differentiate different accesses to the same file name.
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# Track the current FPS.
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clock = time.clock()
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def setup_callback(pathname, session):
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print("Opening \"%s\" in session %d" % (pathname, session))
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def play_callback(pathname, session):
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clock.reset()
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clock.tick()
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print("Playing \"%s\" in session %d" % (pathname, session))
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def pause_callback(pathname, session): # VLC only pauses locally. This is never called.
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@ -62,18 +67,15 @@ server.register_play_cb(play_callback)
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server.register_pause_cb(pause_callback)
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server.register_teardown_cb(teardown_callback)
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# Track the current FPS.
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clock = time.clock()
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# Called each time a new frame is needed.
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def image_callback(pathname, session):
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clock.tick()
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img = sensor.snapshot()
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# Markup image and/or do various things.
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print(clock.fps())
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clock.tick()
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return img
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# Stream does not return. It will call `image_callback` when it needs to get an image object to send
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# to the remote rtsp client connecting to the server.
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server.stream(image_callback)
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server.stream(image_callback, quality=70)
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@ -15,8 +15,8 @@ import network, omv, rtsp, sensor, time
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sensor.reset()
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sensor.set_pixformat(sensor.JPEG) # Only supported by the OV2640/OV5640.
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sensor.set_framesize(sensor.UXGA)
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sensor.set_pixformat(sensor.RGB565)
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sensor.set_framesize(sensor.VGA)
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# Turn off the frame buffer connection to the IDE from the OpenMV Cam side.
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#
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@ -31,6 +31,9 @@ omv.disable_fb(True)
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network_if = network.WLAN(network.STA_IF)
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network_if.active(True)
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network_if.connect('your-ssid', 'your-password')
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while not network_if.isconnected():
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print("Trying to connect. Note this may take a while...")
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time.sleep_ms(1000)
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# Setup RTSP Server
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@ -45,10 +48,15 @@ server = rtsp.rtsp_server(network_if)
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# `session` is random number that will change when a new connection is established. You can use
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# session with a dictionary to differentiate different accesses to the same file name.
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# Track the current FPS.
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clock = time.clock()
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def setup_callback(pathname, session):
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print("Opening \"%s\" in session %d" % (pathname, session))
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def play_callback(pathname, session):
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clock.reset()
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clock.tick()
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print("Playing \"%s\" in session %d" % (pathname, session))
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def pause_callback(pathname, session): # VLC only pauses locally. This is never called.
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@ -62,18 +70,15 @@ server.register_play_cb(play_callback)
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server.register_pause_cb(pause_callback)
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server.register_teardown_cb(teardown_callback)
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# Track the current FPS.
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clock = time.clock()
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# Called each time a new frame is needed.
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def image_callback(pathname, session):
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clock.tick()
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img = sensor.snapshot()
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# Markup image and/or do various things.
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print(clock.fps())
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clock.tick()
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return img
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# Stream does not return. It will call `image_callback` when it needs to get an image object to send
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# to the remote rtsp client connecting to the server.
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server.stream(image_callback)
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server.stream(image_callback, quality=70)
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@ -1,10 +1,11 @@
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# This file is part of the OpenMV project.
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#
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# Copyright (c) 2013-2020 Ibrahim Abdelkader <iabdalkader@openmv.io>
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# Copyright (c) 2013-2020 Kwabena W. Agyeman <kwagyeman@openmv.io>
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# Copyright (c) 2013-2023 Ibrahim Abdelkader <iabdalkader@openmv.io>
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# Copyright (c) 2013-2023 Kwabena W. Agyeman <kwagyeman@openmv.io>
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#
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# This work is licensed under the MIT license, see the file LICENSE for details.
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import errno
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import pyb
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import re
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import socket
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@ -16,38 +17,71 @@ class rtsp_server:
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if self.__tcp__socket is None:
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try:
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s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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s.bind(self.__myaddr)
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s.listen(0)
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s.settimeout(5)
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self.__tcp__socket, self.__client_addr = s.accept()
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try:
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if hasattr(socket, "SO_REUSEADDR"):
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s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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s.bind(self.__myaddr)
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s.listen(0)
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s.settimeout(5)
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self.__tcp__socket, self.__client_addr = s.accept()
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except OSError:
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pass
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s.close()
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except OSError:
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self.__tcp__socket = None
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return self.__tcp__socket is not None
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def __close_tcp_socket(self): # private
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self.__tcp__socket.close()
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self.__tcp__socket = None
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if self.__tcp__socket is not None:
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self.__tcp__socket.close()
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self.__tcp__socket = None
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if self.__playing:
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self.__playing = False
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if self.__teardown_cb:
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self.__teardown_cb(self.__pathname, self.__playing_session)
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def __valid_udp_socket(self): # private
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if self.__udp__socket is None:
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if self.__udp_rtp__socket is None:
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try:
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self.__udp__socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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self.__udp__socket.bind((self.__myip, self.__client_rtp_port))
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self.__udp_rtp__socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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try:
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if hasattr(socket, "SO_REUSEADDR"):
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self.__udp_rtp__socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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self.__udp_rtp__socket.bind((self.__myip, self.__client_rtp_port))
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except OSError:
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self.__udp_rtp__socket.close()
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self.__udp_rtp__socket = None
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except OSError:
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self.__udp__socket = None
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return self.__udp__socket is not None
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self.__udp_rtp__socket = None
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if self.__udp_rtcp__socket is None:
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try:
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self.__udp_rtcp__socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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try:
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if hasattr(socket, "SO_REUSEADDR"):
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self.__udp_rtcp__socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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self.__udp_rtcp__socket.bind((self.__myip, self.__client_rtcp_port))
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except OSError:
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self.__udp_rtcp__socket.close()
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self.__udp_rtcp__socket = None
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except OSError:
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self.__udp_rtcp__socket = None
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return self.__udp_rtp__socket is not None and self.__udp_rtcp__socket is not None
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def __close_udp_socket(self): # private
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self.__udp__socket.close()
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self.__udp__socket = None
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if self.__udp_rtp__socket is not None:
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self.__udp_rtp__socket.close()
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self.__udp_rtp__socket = None
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if self.__udp_rtcp__socket is not None:
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self.__udp_rtcp__socket.close()
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self.__udp_rtcp__socket = None
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def __init__(self, network_if, port=554): # private
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self.__network = network_if
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self.__myip = self.__network.ifconfig()[0]
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self.__myaddr = (self.__myip, port)
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self.__tcp__socket = None
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self.__udp__socket = None
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self.__udp_rtp__socket = None
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self.__udp_rtcp__socket = None
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self.__setup_cb = None
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self.__play_cb = None
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self.__pause_cb = None
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@ -57,6 +91,7 @@ class rtsp_server:
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self.__transport_is_tcp = False
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self.__client_rtp_addr = None
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self.__playing = False
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self.__playing_session = 0
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self.__sequence_number = pyb.rng() & 0xFFFF
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self.__ssrc = pyb.rng()
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print("IP Address:Port %s:%d\nRunning..." % self.__myaddr)
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@ -152,6 +187,7 @@ class rtsp_server:
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)
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self.__session = pyb.rng()
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self.__ssrc = pyb.rng()
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self.__valid_udp_socket()
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self.__send_rtsp_response_ok(
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seq,
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"%s;server_port=%d-%d;ssrc=%d\r\nSession: %d\r\n"
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@ -187,13 +223,14 @@ class rtsp_server:
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m = re.match("Session: (\d+)", s[2])
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if m:
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self.__playing = True
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self.__playing_session = int(m.group(1))
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self.__send_rtsp_response_ok(
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seq,
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"RTP-Info: url=%s;seq=%d\r\n"
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% (line0[1], self.__sequence_number),
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)
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if self.__play_cb:
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self.__play_cb(self.__pathname, int(m.group(1)))
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self.__play_cb(self.__pathname, self.__playing_session)
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return
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elif request == "PAUSE":
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if len(s) >= 3:
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@ -218,6 +255,9 @@ class rtsp_server:
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return
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self.__send_rtsp_response(400, "Bad Request")
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def __parse_rtcp_packet(self, data): # private
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pass
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def __valid_socket(self): # private
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if self.__transport_is_tcp:
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return self.__client_rtp_channel is not None
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@ -228,24 +268,32 @@ class rtsp_server:
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if self.__transport_is_tcp:
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self.__tcp__socket.settimeout(timeout)
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else:
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self.__udp__socket.settimeout(timeout)
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self.__udp_rtp__socket.settimeout(timeout)
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self.__udp_rtcp__socket.settimeout(timeout)
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def __send(self, data): # private
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if self.__transport_is_tcp:
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return self.__tcp__socket.send(
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self.__tcp__socket.sendall(
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struct.pack(">BBH", 0x24, self.__client_rtp_channel, len(data)) + data
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)
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return True
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else:
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return self.__udp__socket.sendto(data, self.__client_rtp_addr)
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return self.__udp_rtp__socket.sendto(data, self.__client_rtp_addr)
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def __recv(self): # private
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if self.__transport_is_tcp:
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return self.__tcp__socket.recv(1400)
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else:
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return self.__udp_rtcp__socket.recv(1400)
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def __close_socket(self): # private
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if self.__transport_is_tcp:
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pass
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self.__close_tcp_socket()
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else:
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self.__close_udp_socket()
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def __send_rtp(self, image_callback, quality): # private
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img = image_callback(self.__pathname, self.__session).compress(quality)
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img = image_callback(self.__pathname, self.__session).to_jpeg(quality=quality)
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if img.width() >= 2040:
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raise ValueError("Maximum width is 2040")
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if img.height() >= 2040:
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@ -259,8 +307,9 @@ class rtsp_server:
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max_packet_size -= 4
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if self.__valid_socket():
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try:
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self.__settimeout(0.1)
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self.__settimeout(5)
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timestamp = (pyb.millis() * 90) & 0xFFFFFFFF
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mv = memoryview(img)
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while l:
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rtp_header = struct.pack(
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">BBHII",
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@ -274,10 +323,9 @@ class rtsp_server:
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jpeg_header = struct.pack(
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">IBBBB", i, 0, quality, int(img.width() // 8), int(img.height() // 8)
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)
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img_data = img.bytearray()[i : i + min(l, max_packet_size)]
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img_data = mv[i : i + min(l, max_packet_size)]
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img_data_len = len(img_data)
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data_len = self.__send(rtp_header + jpeg_header + img_data)
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if not data_len:
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if not self.__send(rtp_header + jpeg_header + img_data):
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break
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i += img_data_len
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l -= img_data_len
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@ -285,17 +333,35 @@ class rtsp_server:
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self.__close_socket()
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except OSError:
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self.__close_socket()
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if not self.__transport_is_tcp and self.__valid_socket():
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try:
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self.__settimeout(0.001)
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try:
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data = self.__recv()
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if data and len(data):
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self.__parse_rtcp_packet(data)
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except OSError as e:
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if e.errno != errno.EAGAIN and e.errno != errno.ETIMEDOUT:
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raise e
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except OSError:
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self.__close_socket()
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def stream(self, image_callback, quality=90): # public
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while True:
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if self.__valid_tcp_socket():
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try:
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self.__tcp__socket.settimeout(0.1)
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while True:
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self.__tcp__socket.settimeout(0.001)
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try:
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data = self.__tcp__socket.recv(1400)
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if data and len(data):
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self.__parse_rtsp_request(data)
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if self.__playing:
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self.__send_rtp(image_callback, quality)
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else:
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raise OSError
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except OSError as e:
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if e.errno != errno.EAGAIN and e.errno != errno.ETIMEDOUT:
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raise e
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if self.__playing:
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self.__send_rtp(image_callback, quality)
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except OSError:
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self.__close_tcp_socket()
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self.__close_udp_socket()
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