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/*
Copyright (C) 2017 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/>.
faadalyse.cpp
Use FAAD to analyse some AAC file internals
Authors:
Matthias P. Braendli <matthias@mpb.li>
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <cstdio>
#include <cstdint>
#include <cstdlib>
#include <cstring>
#include <string>
#include <sstream>
#include <iostream>
#include <getopt.h>
extern "C" {
#include "lib_crc.h"
}
#include "dabplussnoop.hpp"
using namespace std;
static void usage(void)
{
cerr << "\nUsage:\n"
"faadalyse <file.dabp> <bitrate>\n"
" The bitrate of the file must be given separately\n";
}
int main(int argc, char **argv)
{
cerr << "Faadalyse -- A .dabp file analyser\n www.opendigitalradio.org\n" <<
" compiled at " << __DATE__ << " " << __TIME__ << "\n";
if (argc != 3) {
usage();
return 1;
}
const string fname = argv[1];
const int bitrate = stoi(argv[2]);
if (bitrate % 8 != 0) {
cerr << "Bitrate not a multiple of 8\n";
return 1;
}
const int subchannel_index = bitrate / 8;
cerr << "Analysing " << fname << " " << bitrate << "kbps\n";
DabPlusSnoop snoop;
snoop.set_subchannel_index(subchannel_index);
FILE* fd = fopen(fname.c_str(), "r");
if (!fd) {
cerr << "Failed to open file\n";
return 1;
}
while (!feof(fd) and !ferror(fd)) {
vector<uint8_t> buf(1024);
size_t read_bytes = fread(buf.data(), 1, 1024, fd);
if (read_bytes) {
snoop.push(buf.data(), read_bytes);
}
}
snoop.close();
cerr << "Write file stream-0.wav\n";
return 0;
}
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