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| -rw-r--r-- | utils.py | 88 |
1 files changed, 61 insertions, 27 deletions
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\ No newline at end of file +#Copyright (c) 2011 Walter Bender + +# 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. +# +# You should have received a copy of the GNU General Public License +# along with this library; if not, write to the Free Software +# Foundation, 51 Franklin Street, Suite 500 Boston, MA 02110-1335 USA + +import subprocess +from StringIO import StringIO +try: + OLD_SUGAR_SYSTEM = False + import json + json.dumps + from json import load as jload + from json import dump as jdump +except (ImportError, AttributeError): + try: + import simplejson as json + from simplejson import load as jload + from simplejson import dump as jdump + except: + OLD_SUGAR_SYSTEM = True + + +def json_load(text): + """ Load JSON data using what ever resources are available. """ + if OLD_SUGAR_SYSTEM is True: + listdata = json.read(text) + else: + # strip out leading and trailing whitespace, nulls, and newlines + io = StringIO(text) + try: + listdata = jload(io) + except ValueError: + # assume that text is ascii list + listdata = text.split() + for i, value in enumerate(listdata): + listdata[i] = int(value) + return listdata + + +def json_dump(data): + """ Save data using available JSON tools. """ + if OLD_SUGAR_SYSTEM is True: + return json.write(data) + else: + _io = StringIO() + jdump(data, _io) + return _io.getvalue() + + +def play_audio_from_file(file_path): + """ Audio media """ + command_line = ['gst-launch', 'filesrc', 'location=' + file_path, + '! oggdemux', '! vorbisdec', '! audioconvert', + '! alsasink'] + subprocess.call(command_line) |