1 files changed, 94 insertions, 0 deletions
diff --git a/src/faadalyse.cpp b/src/faadalyse.cpp
new file mode 100644
index 0000000..9c7fbf9
--- /dev/null
+++ b/src/faadalyse.cpp
@@ -0,0 +1,94 @@
+/*
+    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;
+}
+