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#!/usr/bin/env python
import os
import sys
import gst
import gobject
class TagGetter:
def __init__(self):
# dictionary to hold our tag info
self.file_tags = {}
# a playbin to parse the audio file
self.playbin = gst.element_factory_make("playbin")
# we need to receive tag signals from the playbin's bus
self.bus = self.playbin.get_bus()
self.bus.enable_sync_message_emission()
self.bus.add_signal_watch()
self.bus.connect("message::tag", self.on_message_tag)
def on_message_tag(self, bus, message):
"""We received a tag message."""
taglist = message.parse_tag()
for key in taglist.keys():
self.file_tags[key] = taglist[key]
print key, '=', taglist[key]
"""
# if we have the title tag, we can return
if self.file_tags.get('title', False):
title = self.file_tags.get('title', 'Unknown title')
artist = self.file_tags.get('artist', 'Unknown artist')
print "%s - %s" % (title, artist)
self.playbin.set_state(gst.STATE_NULL)
"""
def set_uri(self, file_path):
# set the uri of the playbin to our audio file
print file_path
self.playbin.set_property("uri", file_path)
# pause the playbin, we don't really need to play
self.playbin.set_state(gst.STATE_P)
if __name__=="__main__":
if len(sys.argv) > 1:
file_name = sys.argv[1]
getter = TagGetter()
getter.set_uri(file_name)
# create a loop to control our app
mainloop = gobject.MainLoop()
mainloop.run()
else:
print "select an audio file"
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