Congegni
/
sintonia
7
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge branch 'devel' of dev.sourcefabric.org:airtime into devel

This commit is contained in:
James 2012-08-08 12:01:23 -04:00
parent fd1628f971 9eebdd7d50
commit f1b20c2cf5
2 changed files with 11 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
.gitignore vendored
View File

@ -1,4 +1,2 @@
.* .*
*.pyc *.pyc
/files
build/build.properties

17
python_apps/media-monitor/airtimefilemonitor/replaygain.py
View File

@ -4,11 +4,16 @@ import os
import sys import sys
import shutil import shutil
import tempfile import tempfile
import logging
logger = logging.getLogger()
def get_process_output(command): def get_process_output(command):
""" """
Run subprocess and return stdout Run subprocess and return stdout
""" """
logger.debug(command)
p = Popen(command, shell=True, stdout=PIPE) p = Popen(command, shell=True, stdout=PIPE)
return p.communicate()[0].strip() return p.communicate()[0].strip()
@ -22,7 +27,7 @@ def run_process(command):
def get_mime_type(file_path): def get_mime_type(file_path):
""" """
Attempts to get the mime type but will return prematurely if the process Attempts to get the mime type but will return prematurely if the process
takes longer than 5 seconds. Note that this function should only be called takes longer than 5 seconds. Note that this function should only be called
for files which do not have a mp3/ogg/flac extension. for files which do not have a mp3/ogg/flac extension.
""" """
@ -48,27 +53,27 @@ def calculate_replay_gain(file_path):
""" """
This function accepts files of type mp3/ogg/flac and returns a calculated ReplayGain value in dB. This function accepts files of type mp3/ogg/flac and returns a calculated ReplayGain value in dB.
If the value cannot be calculated for some reason, then we default to 0 (Unity Gain). If the value cannot be calculated for some reason, then we default to 0 (Unity Gain).
http://wiki.hydrogenaudio.org/index.php?title=ReplayGain_1.0_specification http://wiki.hydrogenaudio.org/index.php?title=ReplayGain_1.0_specification
""" """
try: try:
""" """
Making a duplicate is required because the ReplayGain extraction utilities we use Making a duplicate is required because the ReplayGain extraction utilities we use
make unwanted modifications to the file. make unwanted modifications to the file.
""" """
search = None search = None
temp_file_path = duplicate_file(file_path) temp_file_path = duplicate_file(file_path)
if re.search(r'mp3$', temp_file_path, re.IGNORECASE) or get_mime_type(temp_file_path) == "audio/mpeg": if re.search(r'mp3$', file_path, re.IGNORECASE) or get_mime_type(temp_file_path) == "audio/mpeg":
if run_process("which mp3gain > /dev/null") == 0: if run_process("which mp3gain > /dev/null") == 0:
out = get_process_output('mp3gain -q "%s" 2> /dev/null' % temp_file_path) out = get_process_output('mp3gain -q "%s" 2> /dev/null' % temp_file_path)
search = re.search(r'Recommended "Track" dB change: (.*)', out) search = re.search(r'Recommended "Track" dB change: (.*)', out)
else: else:
print "mp3gain not found" print "mp3gain not found"
#Log warning #Log warning
elif re.search(r'ogg$', temp_file_path, re.IGNORECASE) or get_mime_type(temp_file_path) == "application/ogg": elif re.search(r'og(g|a)$', file_path, re.IGNORECASE) or get_mime_type(temp_file_path) == "application/ogg":
if run_process("which vorbisgain > /dev/null && which ogginfo > /dev/null") == 0: if run_process("which vorbisgain > /dev/null && which ogginfo > /dev/null") == 0:
run_process('vorbisgain -q -f "%s" 2>/dev/null >/dev/null' % temp_file_path) run_process('vorbisgain -q -f "%s" 2>/dev/null >/dev/null' % temp_file_path)
out = get_process_output('ogginfo "%s"' % temp_file_path) out = get_process_output('ogginfo "%s"' % temp_file_path)
@ -76,7 +81,7 @@ def calculate_replay_gain(file_path):
else: else:
print "vorbisgain/ogginfo not found" print "vorbisgain/ogginfo not found"
#Log warning #Log warning
elif re.search(r'flac$', temp_file_path, re.IGNORECASE) or get_mime_type(temp_file_path) == "audio/x-flac": elif re.search(r'flac$', file_path, re.IGNORECASE) or get_mime_type(temp_file_path) == "audio/x-flac":
if run_process("which metaflac > /dev/null") == 0: if run_process("which metaflac > /dev/null") == 0:
out = get_process_output('metaflac --show-tag=REPLAYGAIN_TRACK_GAIN "%s"' % temp_file_path) out = get_process_output('metaflac --show-tag=REPLAYGAIN_TRACK_GAIN "%s"' % temp_file_path)
search = re.search(r'REPLAYGAIN_TRACK_GAIN=(.*) dB', out) search = re.search(r'REPLAYGAIN_TRACK_GAIN=(.*) dB', out)