From c5d29f9029cd08393e8c91e7ff0d1aa966f10bdb Mon Sep 17 00:00:00 2001
From: Tom Rondeau <trondeau@vt.edu>
Date: Wed, 21 Nov 2012 17:27:09 -0500
Subject: core: adding Python files to easily parse header info of a file.
Also a utility script that you pass a filename to and it prints out the meta data.
---
gr-utils/src/python/CMakeLists.txt | 1 +
gr-utils/src/python/gr_read_file_metadata | 59 +++++++++++++++++++++++++++++++
2 files changed, 60 insertions(+)
create mode 100644 gr-utils/src/python/gr_read_file_metadata
(limited to 'gr-utils/src')
diff --git a/gr-utils/src/python/CMakeLists.txt b/gr-utils/src/python/CMakeLists.txt
index 90caeb2343..13fa06bbc2 100644
--- a/gr-utils/src/python/CMakeLists.txt
+++ b/gr-utils/src/python/CMakeLists.txt
@@ -50,6 +50,7 @@ GR_PYTHON_INSTALL(
gr_plot_short
gr_plot_qt
gr_filter_design
+ gr_read_file_metadata
DESTINATION ${GR_RUNTIME_DIR}
COMPONENT "utils"
)
diff --git a/gr-utils/src/python/gr_read_file_metadata b/gr-utils/src/python/gr_read_file_metadata
new file mode 100644
index 0000000000..657ad7c2b5
--- /dev/null
+++ b/gr-utils/src/python/gr_read_file_metadata
@@ -0,0 +1,59 @@
+#!/usr/bin/env python
+#
+# Copyright 2012 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio 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, or (at your option)
+# any later version.
+#
+# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+import sys
+from optparse import OptionParser
+
+from gnuradio import gr
+from gnuradio import parse_file_metadata
+
+def main(filename):
+ handle = open(filename, "rb")
+
+ # just read out header bytes
+ header_str = handle.read(parse_file_metadata.HEADER_LENGTH)
+
+ # Convert from string to PMT (should be a dictionary)
+ try:
+ header = gr.pmt_deserialize_str(header_str)
+ except RuntimeError:
+ sys.stderr.write("Could not deserialize header: invalid or corrupt data file.\n")
+ sys.exit(1)
+ #gr.pmt_print(header)
+
+ info = parse_file_metadata.parse_header(header, True)
+ #print info
+
+if __name__ == "__main__":
+ usage="%prog: [options] filename"
+ description = "Read in a GNU Radio file with meta data, extracts the header and prints it."
+
+ parser = OptionParser(conflict_handler="resolve",
+ usage=usage, description=description)
+ (options, args) = parser.parse_args ()
+
+ if(len(args) < 1):
+ sys.stderr.write("No filename given\n")
+ sys.exit(1)
+
+ filename = args[0]
+ main(filename)
--
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