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authorMatthias P. Braendli <matthias.braendli@mpb.li>2016-09-02 17:43:32 +0200
committerMatthias P. Braendli <matthias.braendli@mpb.li>2016-09-07 21:20:24 +0200
commit4809f3c042a99a639542b1e6cd22657871113260 (patch)
treedc0ec0f256eaceb79d63daa09591d4a6ef08cb73 /rsdecoder.cpp
parent5542c8ecff635f9abc05b6b2ff255db02c2c9c46 (diff)
downloadetisnoop-4809f3c042a99a639542b1e6cd22657871113260.tar.gz
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Move all sources to src/
Diffstat (limited to 'rsdecoder.cpp')
-rw-r--r--rsdecoder.cpp83
1 files changed, 0 insertions, 83 deletions
diff --git a/rsdecoder.cpp b/rsdecoder.cpp
deleted file mode 100644
index 98ccd39..0000000
--- a/rsdecoder.cpp
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- Copyright (C) 2015 Stefan Pöschel
-
- Copyright (C) 2015 Matthias P. Braendli (http://www.opendigitalradio.org)
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- This program 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 General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdexcept>
-#include "rsdecoder.hpp"
-
-RSDecoder::RSDecoder()
-{
- rs_handle = init_rs_char(8, 0x11D, 0, 1, 10, 135);
- if(!rs_handle)
- throw std::runtime_error("RSDecoder: error while init_rs_char");
-}
-
-RSDecoder::~RSDecoder()
-{
- free_rs_char(rs_handle);
-}
-
-int RSDecoder::DecodeSuperframe(std::vector<uint8_t> &sf, int subch_index)
-{
- int total_corr_count = 0;
- bool uncorr_errors = false;
-
- std::vector<int> errors_per_index(subch_index);
-
- // process all RS packets
- for(int i = 0; i < subch_index; i++) {
- for(int pos = 0; pos < 120; pos++)
- rs_packet[pos] = sf[pos * subch_index + i];
-
- // detect errors
- int corr_count = decode_rs_char(rs_handle, rs_packet, corr_pos, 0);
- errors_per_index[i] = corr_count;
-
- if(corr_count == -1) {
- uncorr_errors = true;
- }
- else {
- total_corr_count += corr_count;
- }
-
- // correct errors
- for(int j = 0; j < corr_count; j++) {
-
- int pos = corr_pos[j] - 135;
- if(pos < 0)
- continue;
-
- // fprintf(stderr, "j: %d, pos: %d, sf-index: %d\n", j, pos, pos * subch_index + i);
- sf[pos * subch_index + i] = rs_packet[pos];
- }
- }
-
- // output statistics
- if (total_corr_count || uncorr_errors) {
- printf("RS uncorrected errors:\n");
- for (size_t i = 0; i < errors_per_index.size(); i++) {
- int e = errors_per_index[i];
- printf(" (%zu: %d)", i, e);
- }
- printf("\n");
- }
-
- return uncorr_errors ? -1 : total_corr_count;
-}
-
-