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ton/tdfec/td/fec/online/Decoder.h
2020-04-10 23:06:01 +04:00

49 lines
1.6 KiB
C++

/*
This file is part of TON Blockchain Library.
TON Blockchain Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
TON Blockchain Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
Copyright 2017-2020 Telegram Systems LLP
*/
#pragma once
#include "td/fec/online/Rfc.h"
#include "td/fec/common/SymbolRef.h"
#include "td/fec/algebra/BeliefPropagationDecoding.h"
#include "td/fec/online/Encoder.h"
namespace td {
namespace online_code {
class Decoder {
public:
static Result<std::unique_ptr<Decoder>> create(Encoder::Parameters p);
Decoder(size_t symbol_size, size_t data_size);
Status add_symbol(raptorq::SymbolRef symbol_ref);
bool is_ready() const;
BufferSlice get_data() const;
private:
Rfc::Parameters parameters_;
size_t symbol_size_;
size_t data_size_;
size_t ready_cnt_{0};
BeliefPropagationDecoding decoding_{parameters_.source_blocks_count() + parameters_.outer_encoding_blocks_count(),
symbol_size_};
};
} // namespace online_code
} // namespace td