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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Copyright 2020 Daniel Estevez <daniel@destevez.net>
#
# This file is part of gr-satellites
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
from construct.core import ConstructError
from .filereceiver import FileReceiver
from ..telemetry import smogp as tlm_smogp
from ..telemetry import smog1 as tlm_smog1
class FileReceiverSMOG(FileReceiver):
def file_id(self, chunk):
return (
f'spectrum_start_{chunk.startfreq}_step_{chunk.stepfreq}'
f'_rbw_{chunk.rbw}_measid_{chunk.measid}')
def chunk_size(self):
return 224
def chunk_sequence(self, chunk):
return chunk.pckt_index
def chunk_data(self, chunk):
return chunk.spectrum_data
def file_size(self, chunk):
return chunk.pckt_count * self.chunk_size()
def parse_chunk(self, chunk):
try:
frame = self._tlm.parse(chunk)
except ConstructError:
return None
return frame.payload if frame.type == 5 else None
class FileReceiverSMOGP(FileReceiverSMOG):
_tlm = tlm_smogp
class FileReceiverSMOG1(FileReceiverSMOG):
_tlm = tlm_smog1
smogp = FileReceiverSMOGP
smog1 = FileReceiverSMOG1
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