def resize_images(self,image_list,max_processes,percent_reduction):
def resize_list(image_file,percent_reduction):
jpg_file = re.sub('\.\w+$','.jpg',image_file)
cmd = "convert -resize %(percent_reduction)d%% %(image_file)s %(jpg_file)s" % locals()
print cmd
process = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
result = process.communicate()
print result[0],result[1]
params = []
# Prepare parameter tuples
for f in image_list:
extension = re.search('\.(\w+)$',f).group(1).lower()
guessed_type = mime.from_file(f)
if extension not in guessed_type:
logging.error("Mime type doesn't match it's extension: type: %s, file %s, aborting" %\
(guessed_type,f))
else:
params.append((f,percent_reduction))
# Runs N concurrent processes based on config.
m = MultiprocessMgmt(resize_list,params,max_processes)
m.run()
def convert_pdfs_to_images(self,pdf_file_list,max_processes,percent_reduction,density):
def convert_list(pdf_file,density,percent_reduction):
jpg_file = re.sub('\.[pP][dD][fF]$','_%d_%%04d.jpg' % percent_reduction,pdf_file)
cmd = "convert -density %(density)d -resize %(percent_reduction)d%% %(pdf_file)s " % locals() + jpg_file
print cmd
process = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
result = process.communicate()
print result[0],result[1]
params = []
# Prepare parameter tuples
for f in pdf_file_list:
guessed_type = mime.from_file(f)
if guessed_type != 'application/pdf':
logging.error("Mime type doesn't match it's extension: type: %s, file %s, aborting" %\
(guessed_type,f))
else:
params.append((f,density,percent_reduction))
# Runs N concurrent processes based on config.
m = MultiprocessMgmt(convert_list,params,max_processes)
m.run()
