86 lines
2.6 KiB
Python
86 lines
2.6 KiB
Python
# -*- coding: utf-8 -*-
|
|
#
|
|
# gPodder - A media aggregator and podcast client
|
|
# Copyright (C) 2005-2007 Thomas Perl <thp at perli.net>
|
|
#
|
|
# gPodder 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.
|
|
#
|
|
# gPodder 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/>.
|
|
#
|
|
|
|
|
|
#
|
|
# libconverter.py -- [any]-to-mp3 conversion library
|
|
# thomas perl <thp@perli.net> 20070318
|
|
#
|
|
#
|
|
|
|
|
|
import re
|
|
import popen2
|
|
import os
|
|
import os.path
|
|
|
|
class FileConverter:
|
|
percentage_match = re.compile('(\d+)%')
|
|
|
|
def __init__( self, decoder_command):
|
|
self.encoder_command = 'lame --nohist /dev/stdin "%s"'
|
|
self.decoder_command = decoder_command
|
|
|
|
def convert( self, input_filename, output_filename, callback = None):
|
|
input_command = self.decoder_command % input_filename
|
|
output_command = self.encoder_command % output_filename
|
|
|
|
command = '%s | %s' % ( input_command, output_command )
|
|
|
|
process = popen2.Popen4( command)
|
|
stdout = process.fromchild
|
|
s = stdout.read( 80)
|
|
while s:
|
|
if callback:
|
|
for str in self.percentage_match.finditer( s):
|
|
callback( str.group( 1).strip())
|
|
s = stdout.read( 80)
|
|
|
|
return process.wait() == 0
|
|
|
|
class ConverterCollection:
|
|
def __init__( self):
|
|
self.dict = {}
|
|
|
|
def add_converter( self, extension, command):
|
|
self.dict[extension.lower()] = FileConverter( command)
|
|
|
|
def has_converter( self, extension):
|
|
return self.dict.has_key( extension.lower())
|
|
|
|
def convert( self, input_filename, output_filename = None, callback = None):
|
|
extension = os.path.splitext( input_filename)[1][1:]
|
|
if extension.lower() not in self.dict:
|
|
return None
|
|
|
|
if not output_filename:
|
|
output_filename = os.path.splitext( input_filename)[0]+'.mp3'
|
|
|
|
if not self.dict[extension.lower()].convert( input_filename, output_filename, callback):
|
|
return None
|
|
|
|
return output_filename
|
|
|
|
|
|
converters = ConverterCollection()
|
|
|
|
# Add known converter applications
|
|
converters.add_converter( 'ogg', 'oggdec --quiet --output=/dev/stdout "%s"')
|
|
|