moved files to pypo dir
This commit is contained in:
Rudi Grinberg
parent
d5cacf4011
commit
2e59eca131
python_apps/pypo/media
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@ -0,0 +1,152 @@
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from subprocess import Popen, PIPE
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import re
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import os
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import sys
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import shutil
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import tempfile
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import logging
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logger = logging.getLogger()
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def get_process_output(command):
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"""
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Run subprocess and return stdout
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"""
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logger.debug(command)
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p = Popen(command, shell=True, stdout=PIPE)
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return p.communicate()[0].strip()
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def run_process(command):
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"""
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Run subprocess and return "return code"
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"""
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p = Popen(command, shell=True)
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return os.waitpid(p.pid, 0)[1]
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def get_mime_type(file_path):
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"""
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Attempts to get the mime type but will return prematurely if the process
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takes longer than 5 seconds. Note that this function should only be called
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for files which do not have a mp3/ogg/flac extension.
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"""
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return get_process_output("timeout 5 file -b --mime-type %s" % file_path)
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def duplicate_file(file_path):
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"""
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Makes a duplicate of the file and returns the path of this duplicate file.
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"""
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fsrc = open(file_path, 'r')
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fdst = tempfile.NamedTemporaryFile(delete=False)
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logger.info("Copying %s to %s" % (file_path, fdst.name))
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shutil.copyfileobj(fsrc, fdst)
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fsrc.close()
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fdst.close()
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return fdst.name
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def get_file_type(file_path):
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file_type = None
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if re.search(r'mp3$', file_path, re.IGNORECASE):
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file_type = 'mp3'
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elif re.search(r'og(g|a)$', file_path, re.IGNORECASE):
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file_type = 'vorbis'
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elif re.search(r'flac$', file_path, re.IGNORECASE):
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file_type = 'flac'
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else:
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mime_type = get_mime_type(file_path)
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if 'mpeg' in mime_type:
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file_type = 'mp3'
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elif 'ogg' in mime_type:
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file_type = 'vorbis'
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elif 'flac' in mime_type:
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file_type = 'flac'
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return file_type
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def calculate_replay_gain(file_path):
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"""
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This function accepts files of type mp3/ogg/flac and returns a calculated
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ReplayGain value in dB.
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If the value cannot be calculated for some reason, then we default to 0
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(Unity Gain).
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http://wiki.hydrogenaudio.org/index.php?title=ReplayGain_1.0_specification
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"""
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try:
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"""
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Making a duplicate is required because the ReplayGain extraction utilities we use
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make unwanted modifications to the file.
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"""
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search = None
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temp_file_path = duplicate_file(file_path)
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file_type = get_file_type(file_path)
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nice_level = '15'
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if file_type:
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if file_type == 'mp3':
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if run_process("which mp3gain > /dev/null") == 0:
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command = 'nice -n %s mp3gain -q "%s" 2> /dev/null' \
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% (nice_level, temp_file_path)
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out = get_process_output(command)
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search = re.search(r'Recommended "Track" dB change: (.*)', \
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out)
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else:
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logger.warn("mp3gain not found")
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elif file_type == 'vorbis':
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command = "which vorbisgain > /dev/null && which ogginfo > \
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/dev/null"
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if run_process(command) == 0:
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command = 'nice -n %s vorbisgain -q -f "%s" 2>/dev/null \
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>/dev/null' % (nice_level,temp_file_path)
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run_process(command)
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out = get_process_output('ogginfo "%s"' % temp_file_path)
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search = re.search(r'REPLAYGAIN_TRACK_GAIN=(.*) dB', out)
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else:
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logger.warn("vorbisgain/ogginfo not found")
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elif file_type == 'flac':
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if run_process("which metaflac > /dev/null") == 0:
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command = 'nice -n %s metaflac --add-replay-gain "%s"' \
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% (nice_level, temp_file_path)
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run_process(command)
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command = 'nice -n %s metaflac \
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--show-tag=REPLAYGAIN_TRACK_GAIN "%s"' \
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% (nice_level, temp_file_path)
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out = get_process_output(command)
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search = re.search(r'REPLAYGAIN_TRACK_GAIN=(.*) dB', out)
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else: logger.warn("metaflac not found")
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except Exception, e:
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logger.error(str(e))
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finally:
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#no longer need the temp, file simply remove it.
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try: os.remove(temp_file_path)
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except: pass
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replay_gain = 0
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if search:
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matches = search.groups()
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if len(matches) == 1:
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replay_gain = matches[0]
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else:
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logger.warn("Received more than 1 match in: '%s'" % str(matches))
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return replay_gain
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# Example of running from command line:
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# python replay_gain.py /path/to/filename.mp3
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if __name__ == "__main__":
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print calculate_replay_gain(sys.argv[1])
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@ -0,0 +1,82 @@
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from threading import Thread
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import traceback
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import os
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import time
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import logging
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from media.update import replaygain
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class ReplayGainUpdater(Thread):
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"""
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The purpose of the class is to query the server for a list of files which
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do not have a ReplayGain value calculated. This class will iterate over the
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list calculate the values, update the server and repeat the process until
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the server reports there are no files left.
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This class will see heavy activity right after a 2.1->2.2 upgrade since 2.2
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introduces ReplayGain normalization. A fresh install of Airtime 2.2 will
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see this class not used at all since a file imported in 2.2 will
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automatically have its ReplayGain value calculated.
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"""
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@staticmethod
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def start_reply_gain(apc):
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me = ReplayGainUpdater(apc)
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me.daemon = True
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me.start()
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def __init__(self,apc):
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Thread.__init__(self)
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self.api_client = apc
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self.logger = logging.getLogger()
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def main(self):
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raw_response = self.api_client.list_all_watched_dirs()
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if 'dirs' not in raw_response:
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self.logger.error("Could not get a list of watched directories \
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with a dirs attribute. Printing full request:")
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self.logger.error( raw_response )
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return
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directories = raw_response['dirs']
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for dir_id, dir_path in directories.iteritems():
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try:
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# keep getting few rows at a time for current music_dir (stor
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# or watched folder).
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total = 0
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while True:
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# return a list of pairs where the first value is the
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# file's database row id and the second value is the
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# filepath
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files = self.api_client.get_files_without_replay_gain_value(dir_id)
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processed_data = []
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for f in files:
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full_path = os.path.join(dir_path, f['fp'])
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processed_data.append((f['id'], replaygain.calculate_replay_gain(full_path)))
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try:
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self.api_client.update_replay_gain_values(processed_data)
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except Exception as e: self.unexpected_exception(e)
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if len(files) == 0: break
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self.logger.info("Processed: %d songs" % total)
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except Exception, e:
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self.logger.error(e)
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self.logger.debug(traceback.format_exc())
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def run(self):
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try:
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while True:
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self.logger.info("Runnning replaygain updater")
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self.main()
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# Sleep for 5 minutes in case new files have been added
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time.sleep(60 * 5)
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except Exception, e:
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self.logger.error('ReplayGainUpdater Exception: %s', traceback.format_exc())
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self.logger.error(e)
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if __name__ == "__main__":
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rgu = ReplayGainUpdater()
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rgu.main()
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