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https://github.com/onyx-and-iris/vban-cmd-python.git
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add missing constants
add docstrings that describes data breakdown move SubscribeHeader above VbanRtPacketHeader expand assert failure string
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@ -3,10 +3,14 @@ from dataclasses import dataclass
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from .kinds import KindMapClass
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from .util import comp
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VBAN_PROTOCOL_TXT = 0x40
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VBAN_PROTOCOL_SERVICE = 0x60
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VBAN_SERVICE_RTPACKETREGISTER = 32
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VBAN_SERVICE_RTPACKET = 33
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MAX_PACKET_SIZE = 1436
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HEADER_SIZE = 4 + 1 + 1 + 1 + 1 + 16 + 4
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HEADER_SIZE = 4 + 1 + 1 + 1 + 1 + 16
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@dataclass
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@ -14,28 +18,28 @@ class VbanRtPacket:
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"""Represents the body of a VBAN RT data packet"""
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_kind: KindMapClass
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_voicemeeterType: bytes
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_reserved: bytes
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_buffersize: bytes
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_voicemeeterVersion: bytes
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_optionBits: bytes
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_samplerate: bytes
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_inputLeveldB100: bytes
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_outputLeveldB100: bytes
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_TransportBit: bytes
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_stripState: bytes
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_busState: bytes
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_stripGaindB100Layer1: bytes
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_stripGaindB100Layer2: bytes
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_stripGaindB100Layer3: bytes
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_stripGaindB100Layer4: bytes
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_stripGaindB100Layer5: bytes
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_stripGaindB100Layer6: bytes
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_stripGaindB100Layer7: bytes
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_stripGaindB100Layer8: bytes
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_busGaindB100: bytes
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_stripLabelUTF8c60: bytes
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_busLabelUTF8c60: bytes
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_voicemeeterType: bytes # data[28:29]
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_reserved: bytes # data[29:30]
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_buffersize: bytes # data[30:32]
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_voicemeeterVersion: bytes # data[32:36]
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_optionBits: bytes # data[36:40]
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_samplerate: bytes # data[40:44]
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_inputLeveldB100: bytes # data[44:112]
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_outputLeveldB100: bytes # data[112:240]
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_TransportBit: bytes # data[240:244]
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_stripState: bytes # data[244:276]
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_busState: bytes # data[276:308]
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_stripGaindB100Layer1: bytes # data[308:324]
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_stripGaindB100Layer2: bytes # data[324:340]
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_stripGaindB100Layer3: bytes # data[340:356]
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_stripGaindB100Layer4: bytes # data[356:372]
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_stripGaindB100Layer5: bytes # data[372:388]
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_stripGaindB100Layer6: bytes # data[388:404]
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_stripGaindB100Layer7: bytes # data[404:420]
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_stripGaindB100Layer8: bytes # data[420:436]
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_busGaindB100: bytes # data[436:452]
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_stripLabelUTF8c60: bytes # data[452:932]
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_busLabelUTF8c60: bytes # data[932:1412]
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def _generate_levels(self, levelarray) -> tuple:
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return tuple(
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@ -206,13 +210,42 @@ class VbanRtPacket:
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)
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@dataclass
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class SubscribeHeader:
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"""Represents the header an RT Packet Service subscription packet"""
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name = "Register RTP"
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timeout = 15
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vban: bytes = "VBAN".encode()
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format_sr: bytes = (VBAN_PROTOCOL_SERVICE).to_bytes(1, "little")
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format_nbs: bytes = (0).to_bytes(1, "little")
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format_nbc: bytes = (VBAN_SERVICE_RTPACKETREGISTER).to_bytes(1, "little")
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format_bit: bytes = (timeout & 0x000000FF).to_bytes(1, "little") # timeout
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streamname: bytes = name.encode("ascii") + bytes(16 - len(name))
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framecounter: bytes = (0).to_bytes(4, "little")
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@property
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def header(self):
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header = self.vban
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header += self.format_sr
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header += self.format_nbs
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header += self.format_nbc
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header += self.format_bit
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header += self.streamname
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header += self.framecounter
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assert (
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len(header) == HEADER_SIZE + 4
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), f"expected header size {HEADER_SIZE} bytes + 4 bytes framecounter ({HEADER_SIZE +4} bytes total)"
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return header
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@dataclass
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class VbanRtPacketHeader:
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"""Represents the header of VBAN RT data packet"""
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"""Represents the header of a VBAN RT response packet"""
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name = "Voicemeeter-RTP"
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vban: bytes = "VBAN".encode()
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format_sr: bytes = (0x60).to_bytes(1, "little")
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format_sr: bytes = (VBAN_PROTOCOL_SERVICE).to_bytes(1, "little")
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format_nbs: bytes = (0).to_bytes(1, "little")
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format_nbc: bytes = (VBAN_SERVICE_RTPACKET).to_bytes(1, "little")
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format_bit: bytes = (0).to_bytes(1, "little")
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@ -226,13 +259,13 @@ class VbanRtPacketHeader:
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header += self.format_nbc
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header += self.format_bit
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header += self.streamname
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assert len(header) == HEADER_SIZE - 4, f"Header expected {HEADER_SIZE-4} bytes"
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assert len(header) == HEADER_SIZE, f"expected header size {HEADER_SIZE} bytes"
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return header
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@dataclass
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class RequestHeader:
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"""Represents a REQUEST RT PACKET header"""
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"""Represents the header of an REQUEST RT PACKET"""
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name: str
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bps_index: int
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@ -244,7 +277,7 @@ class RequestHeader:
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@property
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def sr(self):
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return (0x40 + self.bps_index).to_bytes(1, "little")
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return (VBAN_PROTOCOL_TXT + self.bps_index).to_bytes(1, "little")
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@property
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def nbc(self):
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@ -263,32 +296,7 @@ class RequestHeader:
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header += self.bit
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header += self.streamname
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header += self.framecounter
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assert len(header) == HEADER_SIZE, f"Header expected {HEADER_SIZE} bytes"
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return header
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@dataclass
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class SubscribeHeader:
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"""Represents a packet used to subscribe to the RT Packet Service"""
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name = "Register RTP"
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timeout = 15
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vban: bytes = "VBAN".encode()
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format_sr: bytes = (0x60).to_bytes(1, "little")
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format_nbs: bytes = (0).to_bytes(1, "little")
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format_nbc: bytes = (VBAN_SERVICE_RTPACKETREGISTER).to_bytes(1, "little")
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format_bit: bytes = (timeout & 0x000000FF).to_bytes(1, "little") # timeout
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streamname: bytes = name.encode("ascii") + bytes(16 - len(name))
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framecounter: bytes = (0).to_bytes(4, "little")
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@property
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def header(self):
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header = self.vban
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header += self.format_sr
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header += self.format_nbs
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header += self.format_nbc
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header += self.format_bit
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header += self.streamname
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header += self.framecounter
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assert len(header) == HEADER_SIZE, f"Header expected {HEADER_SIZE} bytes"
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assert (
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len(header) == HEADER_SIZE + 4
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), f"expected header size {HEADER_SIZE} bytes + 4 bytes framecounter ({HEADER_SIZE +4} bytes total)"
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return header
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