Migrate MCP and utilities to CircuitPython, including color GIF and volume fixes
This commit is contained in:
Adolfo Reyna
@@ -0,0 +1,572 @@
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"""CircuitPython Video Stream Server utility.
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Listens for incoming TCP/UDP video frames and draws them centered and cropped on the display.
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"""
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import time
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class VideoStreamServer:
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def __init__(self, display, pool, tcp_port=8081, udp_port=8082, color_port=8083, color_udp_port=8084):
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self.display = display
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self.pool = pool
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self.tcp_port = tcp_port
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self.udp_port = udp_port
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self.color_port = color_port
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self.color_udp_port = color_udp_port
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# Sockets
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self.tcp_server = None
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self.tcp_client = None
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self.udp_sock = None
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self.color_server = None
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self.color_client = None
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self.color_udp_sock = None
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# State
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self.active = False
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self.last_packet_time = 0
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self.timeout_s = 3.0
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# Frame buffering
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self.buffer = bytearray(15000)
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self.view = memoryview(self.buffer)
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self.tcp_bytes_received = 0
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# UDP Reassembly
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self.udp_temp_buffer = bytearray(1002)
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self.current_frame_id = -1
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self.chunks_received = 0
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self.color_chunks_mask = 0
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# Color buffering (320x240 RGB565 is 153,600 bytes)
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self.color_buffer = bytearray(153600)
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self.color_view = memoryview(self.color_buffer)
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self.color_bytes_received = 0
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self.color_header = bytearray(16)
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self.color_header_received = 0
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self.color_payload_len = 0
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self.color_x = 0
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self.color_y = 0
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self.color_w = 0
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self.color_h = 0
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# Stats
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self.debug = False
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self.frames_drawn = 0
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self.udp_packets_received = 0
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self.udp_frames_complete = 0
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self.dropped_udp_frames = 0
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self.last_draw_ms = 0
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self.last_fps = 0.0
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# FPS Calculation
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self.fps_start_time = time.monotonic()
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self.fps_frame_count = 0
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def start(self):
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"""Initializes TCP and UDP sockets."""
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# 1. Start TCP Server (Mono)
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try:
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self.tcp_server = self.pool.socket(self.pool.AF_INET, self.pool.SOCK_STREAM)
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try:
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self.tcp_server.setsockopt(self.pool.SOL_SOCKET, self.pool.SO_REUSEADDR, 1)
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except:
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pass
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self.tcp_server.bind(("", self.tcp_port))
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self.tcp_server.listen(1)
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self.tcp_server.setblocking(False)
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print(f"Video TCP Stream server listening on port {self.tcp_port}...")
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except Exception as e:
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print(f"Failed to start TCP stream server: {e}")
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# 2. Start UDP Server (Mono)
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try:
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self.udp_sock = self.pool.socket(self.pool.AF_INET, self.pool.SOCK_DGRAM)
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try:
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self.udp_sock.setsockopt(self.pool.SOL_SOCKET, self.pool.SO_REUSEADDR, 1)
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except:
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pass
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self.udp_sock.bind(("", self.udp_port))
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self.udp_sock.setblocking(False)
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print(f"Video UDP Stream responder listening on port {self.udp_port}...")
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except Exception as e:
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print(f"Failed to start UDP stream server: {e}")
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# 3. Start Color TCP Server
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try:
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self.color_server = self.pool.socket(self.pool.AF_INET, self.pool.SOCK_STREAM)
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try:
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self.color_server.setsockopt(self.pool.SOL_SOCKET, self.pool.SO_REUSEADDR, 1)
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except:
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pass
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self.color_server.bind(("", self.color_port))
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self.color_server.listen(1)
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self.color_server.setblocking(False)
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print(f"Video Color TCP Stream server listening on port {self.color_port}...")
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except Exception as e:
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print(f"Failed to start Color TCP server: {e}")
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# 4. Start Color UDP Server
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try:
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self.color_udp_sock = self.pool.socket(self.pool.AF_INET, self.pool.SOCK_DGRAM)
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try:
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self.color_udp_sock.setsockopt(self.pool.SOL_SOCKET, self.pool.SO_REUSEADDR, 1)
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except:
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pass
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self.color_udp_sock.bind(("", self.color_udp_port))
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self.color_udp_sock.setblocking(False)
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print(f"Video Color UDP Stream responder listening on port {self.color_udp_port}...")
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except Exception as e:
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print(f"Failed to start Color UDP stream server: {e}")
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def restart_tcp_server(self):
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print("Restarting TCP Stream Server...")
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self.close_tcp_client()
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if self.tcp_server:
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try:
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self.tcp_server.close()
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except:
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pass
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self.tcp_server = None
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time.sleep(0.1)
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try:
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self.tcp_server = self.pool.socket(self.pool.AF_INET, self.pool.SOCK_STREAM)
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self.tcp_server.bind(("", self.tcp_port))
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self.tcp_server.listen(1)
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self.tcp_server.setblocking(False)
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except Exception as e:
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print(f"Restart TCP Server failed: {e}")
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def restart_udp_sock(self):
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print("Restarting UDP Stream Socket...")
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if self.udp_sock:
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try:
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self.udp_sock.close()
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except:
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pass
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self.udp_sock = None
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time.sleep(0.1)
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try:
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self.udp_sock = self.pool.socket(self.pool.AF_INET, self.pool.SOCK_DGRAM)
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self.udp_sock.bind(("", self.udp_port))
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self.udp_sock.setblocking(False)
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except Exception as e:
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print(f"Restart UDP Socket failed: {e}")
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def restart_color_server(self):
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print("Restarting Color TCP Stream Server...")
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self.close_color_client()
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if self.color_server:
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try:
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self.color_server.close()
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except:
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pass
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self.color_server = None
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time.sleep(0.1)
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try:
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self.color_server = self.pool.socket(self.pool.AF_INET, self.pool.SOCK_STREAM)
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self.color_server.bind(("", self.color_port))
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self.color_server.listen(1)
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self.color_server.setblocking(False)
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except Exception as e:
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print(f"Restart Color TCP Server failed: {e}")
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def restart_color_udp_sock(self):
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print("Restarting Color UDP Stream Socket...")
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if self.color_udp_sock:
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try:
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self.color_udp_sock.close()
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except:
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pass
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self.color_udp_sock = None
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time.sleep(0.1)
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try:
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self.color_udp_sock = self.pool.socket(self.pool.AF_INET, self.pool.SOCK_DGRAM)
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self.color_udp_sock.bind(("", self.color_udp_port))
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self.color_udp_sock.setblocking(False)
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except Exception as e:
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print(f"Restart Color UDP Socket failed: {e}")
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def update(self):
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"""Non-blocking socket check for streaming updates."""
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now = time.monotonic()
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# Check Stream Active Timeout
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if self.active and (now - self.last_packet_time) > self.timeout_s:
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print("Video stream timed out. Returning to dashboard.")
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self.active = False
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self.close_tcp_client()
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self.close_color_client()
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# Calculate FPS periodically
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fps_elapsed = now - self.fps_start_time
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if fps_elapsed >= 2.0:
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self.last_fps = self.fps_frame_count / fps_elapsed
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self.fps_frame_count = 0
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self.fps_start_time = now
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# 1. Handle UDP reassembly (Mono)
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if self.udp_sock:
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while True:
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try:
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# recv_into returns number of bytes read
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n = self.udp_sock.recv_into(self.udp_temp_buffer)
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if n == 0:
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break
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self.udp_packets_received += 1
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frame_id = self.udp_temp_buffer[0]
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chunk_idx = self.udp_temp_buffer[1]
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if chunk_idx < 15:
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self.active = True
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self.last_packet_time = now
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if frame_id != self.current_frame_id:
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if self.chunks_received != 0:
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self.dropped_udp_frames += 1
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self.current_frame_id = frame_id
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self.chunks_received = 0
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# Copy payload to self.buffer
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start_offset = chunk_idx * 1000
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self.buffer[start_offset : start_offset + 1000] = self.udp_temp_buffer[2:1002]
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self.chunks_received |= (1 << chunk_idx)
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if self.chunks_received == 0x7FFF:
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self.udp_frames_complete += 1
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self.active = True
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self.last_packet_time = now
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self._draw_frame()
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self.chunks_received = 0
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except OSError as e:
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import errno
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err = getattr(e, 'errno', None)
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if err is None and e.args:
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err = e.args[0]
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ewouldblock = getattr(errno, 'EWOULDBLOCK', errno.EAGAIN)
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if err in (errno.EAGAIN, ewouldblock) or err is None:
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break
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print(f"UDP Socket error: {e}")
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self.restart_udp_sock()
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break
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# 1B. Handle UDP reassembly (Color)
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if self.color_udp_sock:
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while True:
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try:
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n = self.color_udp_sock.recv_into(self.udp_temp_buffer)
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if n == 0:
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break
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self.udp_packets_received += 1
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frame_id = self.udp_temp_buffer[0]
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chunk_idx = self.udp_temp_buffer[1]
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if chunk_idx < 154:
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self.active = True
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self.last_packet_time = now
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if frame_id != self.current_frame_id:
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self.current_frame_id = frame_id
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self.color_chunks_mask = 0
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# Copy payload to self.color_buffer
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start_offset = chunk_idx * 1000
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if start_offset + 1000 <= 153600:
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self.color_buffer[start_offset : start_offset + 1000] = self.udp_temp_buffer[2:1002]
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self.color_chunks_mask |= (1 << chunk_idx)
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if self.color_chunks_mask == 0x3FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF:
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self.udp_frames_complete += 1
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self.active = True
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self.last_packet_time = now
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self.color_x = 0
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self.color_y = 0
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self.color_w = 320
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self.color_h = 240
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self.color_payload_len = 153600
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self._draw_color_frame()
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self.color_chunks_mask = 0
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except OSError as e:
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import errno
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err = getattr(e, 'errno', None)
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if err is None and e.args:
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err = e.args[0]
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ewouldblock = getattr(errno, 'EWOULDBLOCK', errno.EAGAIN)
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if err in (errno.EAGAIN, ewouldblock) or err is None:
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break
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print(f"Color UDP Socket error: {e}")
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self.restart_color_udp_sock()
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break
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# 2. Handle TCP stream (Mono)
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if self.tcp_server:
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if self.tcp_client is None:
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try:
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self.tcp_client, addr = self.tcp_server.accept()
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self.tcp_client.setblocking(False)
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self.tcp_bytes_received = 0
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self.active = True
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self.last_packet_time = now
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print(f"TCP Stream client connected from: {addr}")
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except OSError as e:
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import errno
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err = getattr(e, 'errno', None)
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if err is None and e.args:
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err = e.args[0]
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ewouldblock = getattr(errno, 'EWOULDBLOCK', errno.EAGAIN)
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if err not in (errno.EAGAIN, ewouldblock) and err is not None:
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print(f"TCP Accept error: {e}")
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self.restart_tcp_server()
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if self.tcp_client is not None:
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retries = 0
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while self.tcp_bytes_received < 15000:
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remaining = 15000 - self.tcp_bytes_received
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slice_view = self.view[self.tcp_bytes_received : self.tcp_bytes_received + remaining]
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try:
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n = self.tcp_client.recv_into(slice_view)
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if n > 0:
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self.tcp_bytes_received += n
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self.last_packet_time = now
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self.active = True
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retries = 0
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elif n == 0:
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print("TCP Stream client disconnected.")
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self.close_tcp_client()
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break
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except OSError as e:
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import errno
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err = getattr(e, 'errno', None)
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if err is None and e.args:
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err = e.args[0]
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ewouldblock = getattr(errno, 'EWOULDBLOCK', errno.EAGAIN)
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if err in (errno.EAGAIN, ewouldblock) or err is None:
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retries += 1
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if retries > 15:
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break
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time.sleep(0.001)
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else:
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print(f"TCP Stream recv error: {e}")
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self.close_tcp_client()
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break
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if self.tcp_bytes_received == 15000:
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self.tcp_bytes_received = 0
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self._draw_frame()
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# 3. Handle Color TCP stream
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if self.color_server:
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if self.color_client is None:
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try:
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self.color_client, addr = self.color_server.accept()
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self.color_client.setblocking(False)
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self.color_bytes_received = 0
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self.color_header_received = 0
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self.color_payload_len = 0
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self.active = True
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self.last_packet_time = now
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print(f"Color TCP Stream client connected from: {addr}")
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except OSError as e:
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import errno
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err = getattr(e, 'errno', None)
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if err is None and e.args:
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err = e.args[0]
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ewouldblock = getattr(errno, 'EWOULDBLOCK', errno.EAGAIN)
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if err not in (errno.EAGAIN, ewouldblock) and err is not None:
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print(f"Color TCP Accept error: {e}")
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self.restart_color_server()
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if self.color_client is not None:
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try:
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# Read header (16 bytes)
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if self.color_header_received < 16:
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start_h = time.monotonic()
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while self.color_header_received < 16:
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if (time.monotonic() - start_h) > 0.100:
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break
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remaining_h = 16 - self.color_header_received
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slice_h = memoryview(self.color_header)[self.color_header_received : self.color_header_received + remaining_h]
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n = self.color_client.recv_into(slice_h)
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if n > 0:
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self.color_header_received += n
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elif n == 0:
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self.close_color_client()
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return
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if self.color_header_received == 16:
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# Detect version byte at index 4
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version = self.color_header[4]
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if version == 1:
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# stream_color.py format: sig (4B), version (1B), format (1B), width (2B), height (2B), payload_len (4B), reserved (2B)
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self.color_x = 0
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self.color_y = 0
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self.color_w = (self.color_header[6] << 8) | self.color_header[7]
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self.color_h = (self.color_header[8] << 8) | self.color_header[9]
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self.color_payload_len = (self.color_header[10] << 24) | (self.color_header[11] << 16) | (self.color_header[12] << 8) | self.color_header[13]
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else:
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# iPhone app format: sig (4B), x (2B), y (2B), width (2B), height (2B), payload_len (4B)
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self.color_x = (self.color_header[4] << 8) | self.color_header[5]
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self.color_y = (self.color_header[6] << 8) | self.color_header[7]
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self.color_w = (self.color_header[8] << 8) | self.color_header[9]
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self.color_h = (self.color_header[10] << 8) | self.color_header[11]
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self.color_payload_len = (self.color_header[12] << 24) | (self.color_header[13] << 16) | (self.color_header[14] << 8) | self.color_header[15]
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# Safety check:
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if self.color_payload_len > len(self.color_buffer):
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print(f"Warning: Color payload length {self.color_payload_len} exceeds preallocated buffer {len(self.color_buffer)}. Closing connection.")
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self.close_color_client()
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return
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self.color_bytes_received = 0
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# Read payload
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if self.color_header_received == 16 and self.color_payload_len > 0:
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retries = 0
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while self.color_bytes_received < self.color_payload_len:
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remaining_p = self.color_payload_len - self.color_bytes_received
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slice_p = self.color_view[self.color_bytes_received : self.color_bytes_received + remaining_p]
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try:
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n = self.color_client.recv_into(slice_p)
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if n > 0:
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self.color_bytes_received += n
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self.last_packet_time = now
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self.active = True
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retries = 0
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elif n == 0:
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self.close_color_client()
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break
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except OSError as e:
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import errno
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err = getattr(e, 'errno', None)
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if err is None and e.args:
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err = e.args[0]
|
||||
ewouldblock = getattr(errno, 'EWOULDBLOCK', errno.EAGAIN)
|
||||
if err in (errno.EAGAIN, ewouldblock) or err is None:
|
||||
retries += 1
|
||||
if retries > 25: # max 25ms wait total per frame
|
||||
break
|
||||
time.sleep(0.001)
|
||||
else:
|
||||
print(f"Color TCP Stream recv error during payload: {e}")
|
||||
self.close_color_client()
|
||||
break
|
||||
|
||||
if self.color_bytes_received == self.color_payload_len:
|
||||
self._draw_color_frame()
|
||||
self.color_header_received = 0
|
||||
self.color_payload_len = 0
|
||||
self.color_bytes_received = 0
|
||||
except OSError as e:
|
||||
import errno
|
||||
err = getattr(e, 'errno', None)
|
||||
if err is None and e.args:
|
||||
err = e.args[0]
|
||||
ewouldblock = getattr(errno, 'EWOULDBLOCK', errno.EAGAIN)
|
||||
if err not in (errno.EAGAIN, ewouldblock) and err is not None:
|
||||
print(f"Color TCP Stream recv error: {e}")
|
||||
self.close_color_client()
|
||||
|
||||
def rlcd_to_mono_cp(self, rlcd_buf, canvas_buf, width, height):
|
||||
for i in range(len(canvas_buf)):
|
||||
canvas_buf[i] = 0
|
||||
|
||||
dx = (400 - width) // 2
|
||||
dy = (300 - height) // 2
|
||||
width_bytes = width // 8
|
||||
|
||||
for index in range(15000):
|
||||
val = rlcd_buf[index]
|
||||
if val == 0:
|
||||
continue
|
||||
|
||||
byte_x = index // 75
|
||||
block_y = index % 75
|
||||
x_base = 2 * byte_x
|
||||
y_base = 299 - 4 * block_y
|
||||
|
||||
for local_y in range(4):
|
||||
for local_x in range(2):
|
||||
bit = 7 - (local_y * 2 + local_x)
|
||||
if val & (1 << bit):
|
||||
x = x_base + local_x
|
||||
y = y_base - local_y
|
||||
screen_x = x - dx
|
||||
screen_y = y - dy
|
||||
|
||||
if 0 <= screen_x < width and 0 <= screen_y < height:
|
||||
byte_idx = screen_y * width_bytes + (screen_x >> 3)
|
||||
bit_idx = 7 - (screen_x & 7)
|
||||
canvas_buf[byte_idx] |= (1 << bit_idx)
|
||||
|
||||
def _draw_frame(self):
|
||||
draw_start = time.monotonic()
|
||||
|
||||
# Check if RLCD display vs standard ILI9341 display
|
||||
disp_name = self.display.__class__.__name__
|
||||
if disp_name == "RLCD":
|
||||
# Direct SPI write commands for RLCD layout
|
||||
self.display.write_cmd(0x2A)
|
||||
self.display.write_data([0x12, 0x2A])
|
||||
self.display.write_cmd(0x2B)
|
||||
self.display.write_data([0x00, 0xC7])
|
||||
self.display.write_cmd(0x2C)
|
||||
self.display.write_data(self.buffer)
|
||||
else:
|
||||
# Map 400x300 RLCD buffer into the ILI9341 320x240 canvas buffer
|
||||
self.rlcd_to_mono_cp(self.buffer, self.display.canvas_buffer, self.display.width, self.display.height)
|
||||
self.display.show()
|
||||
|
||||
self.last_draw_ms = int((time.monotonic() - draw_start) * 1000)
|
||||
self.frames_drawn += 1
|
||||
self.fps_frame_count += 1
|
||||
|
||||
def _draw_color_frame(self):
|
||||
draw_start = time.monotonic()
|
||||
if hasattr(self.display, "draw_rgb565"):
|
||||
self.display.draw_rgb565(
|
||||
self.color_x,
|
||||
self.color_y,
|
||||
self.color_w,
|
||||
self.color_h,
|
||||
self.color_view[:self.color_payload_len],
|
||||
sync_canvas=False,
|
||||
)
|
||||
else:
|
||||
# Fallback if no raw RGB565 method is exposed (e.g. standard RLCD)
|
||||
pass
|
||||
|
||||
self.last_draw_ms = int((time.monotonic() - draw_start) * 1000)
|
||||
self.frames_drawn += 1
|
||||
self.fps_frame_count += 1
|
||||
|
||||
def get_stats(self):
|
||||
return {
|
||||
"frames_drawn": self.frames_drawn,
|
||||
"tcp_bytes_received": self.tcp_bytes_received,
|
||||
"udp_packets_received": self.udp_packets_received,
|
||||
"udp_frames_complete": self.udp_frames_complete,
|
||||
"dropped_udp_frames": self.dropped_udp_frames,
|
||||
"last_draw_ms": self.last_draw_ms,
|
||||
"last_fps": round(self.last_fps, 1),
|
||||
"active": self.active,
|
||||
}
|
||||
|
||||
def close_tcp_client(self):
|
||||
if self.tcp_client:
|
||||
try:
|
||||
self.tcp_client.close()
|
||||
except:
|
||||
pass
|
||||
self.tcp_client = None
|
||||
self.tcp_bytes_received = 0
|
||||
|
||||
def close_color_client(self):
|
||||
if self.color_client:
|
||||
try:
|
||||
self.color_client.close()
|
||||
except:
|
||||
pass
|
||||
self.color_client = None
|
||||
self.color_bytes_received = 0
|
||||
self.color_header_received = 0
|
||||
self.color_payload_len = 0
|
||||
Reference in New Issue
Block a user