54 lines
1.7 KiB
Python
54 lines
1.7 KiB
Python
from typing import Dict, List, Any
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from scapy.all import Packet
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from .base import FrameTypeInterface
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class Ch10PCMStats(FrameTypeInterface):
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"""Chapter 10 PCM (Pulse Code Modulation) Data Statistics"""
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def __init__(self):
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super().__init__()
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self.name = "Chapter 10 PCM"
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self.count = 0
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self.bytes = 0
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self.first_time = None
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self.last_time = None
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self.channel_ids = set()
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self.frame_sync_errors = 0
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self.bit_slip_events = 0
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self.minor_frame_count = 0
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self.major_frame_count = 0
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def add(self, timestamp: float, size: int, packet: Packet):
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self.count += 1
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self.bytes += size
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if self.first_time is None:
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self.first_time = timestamp
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self.last_time = timestamp
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# In real implementation, decode PCM frame structure
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def get_summary_dict(self) -> Dict[str, Any]:
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duration = (self.last_time or 0) - (self.first_time or 0)
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return {
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'Pkts': self.count,
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'Bytes': self.bytes,
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'Duration': round(duration, 3),
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'Channels': len(self.channel_ids),
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'Sync Errors': self.frame_sync_errors,
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'Bit Slips': self.bit_slip_events,
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'Minor Frames': self.minor_frame_count,
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'Major Frames': self.major_frame_count
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}
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def get_column_definitions(self) -> List[tuple]:
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return [
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('Pkts', 'd'),
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('Bytes', 'd'),
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('Duration', '.3f'),
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('Channels', 'd'),
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('Sync Errors', 'd'),
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('Bit Slips', 'd'),
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('Minor Frames', 'd'),
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('Major Frames', 'd')
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] |