From 48f3452530b29627ce57089b65363776dbe9a179 Mon Sep 17 00:00:00 2001
From: Ben Reynwar <ben@reynwar.net>
Date: Tue, 4 Jun 2013 10:59:29 -0700
Subject: uninstalled import: Updatings blocks, fec, uhd, and filter so that
uninstalled import works with recent changes.
---
gr-utils/python/utils/gr_read_file_metadata | 87 +++++++++++++++++++++++++++++
1 file changed, 87 insertions(+)
create mode 100644 gr-utils/python/utils/gr_read_file_metadata
(limited to 'gr-utils/python/utils/gr_read_file_metadata')
diff --git a/gr-utils/python/utils/gr_read_file_metadata b/gr-utils/python/utils/gr_read_file_metadata
new file mode 100644
index 0000000000..4373cd054b
--- /dev/null
+++ b/gr-utils/python/utils/gr_read_file_metadata
@@ -0,0 +1,87 @@
+#!/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
+
+import pmt
+from gnuradio.blocks import parse_file_metadata
+
+def main(filename, detached=False):
+ handle = open(filename, "rb")
+
+ nheaders = 0
+ nread = 0
+ while(True):
+ # read out next header bytes
+ hdr_start = handle.tell()
+ header_str = handle.read(parse_file_metadata.HEADER_LENGTH)
+ if(len(header_str) == 0):
+ break
+
+ # Convert from string to PMT (should be a dictionary)
+ try:
+ header = pmt.deserialize_str(header_str)
+ except RuntimeError:
+ sys.stderr.write("Could not deserialize header: invalid or corrupt data file.\n")
+ sys.exit(1)
+
+ print "HEADER {0}".format(nheaders)
+ info = parse_file_metadata.parse_header(header, True)
+
+ if(info["extra_len"] > 0):
+ extra_str = handle.read(info["extra_len"])
+ if(len(extra_str) == 0):
+ break
+
+ try:
+ extra = pmt.deserialize_str(extra_str)
+ except RuntimeError:
+ sys.stderr.write("Could not deserialize extras: invalid or corrupt data file.\n")
+ sys.exit(1)
+
+ print "\nExtra Header:"
+ extra_info = parse_file_metadata.parse_extra_dict(extra, info, True)
+
+ nheaders += 1
+ nread += parse_file_metadata.HEADER_LENGTH + info["extra_len"]
+ if(not detached):
+ nread += info['nbytes']
+ handle.seek(nread, 0)
+ print "\n\n"
+
+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)
+ parser.add_option("-D", "--detached", action="store_true", default=False,
+ help="Used if header is detached.")
+ (options, args) = parser.parse_args ()
+
+ if(len(args) < 1):
+ sys.stderr.write("No filename given\n")
+ sys.exit(1)
+
+ filename = args[0]
+ main(filename, options.detached)
--
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