def convertFiles(old_dir, new_dir, video_dir = "", fps = 25):
"""Converts the the subtitle files in old_dir and subdirectories
from using fps to using the actual time
@param old_dir The directory where the to be converted subtititle files are
@param new_dir Where the changed files should go
@param video_dir Directory where the video files, for which the
subtitles in old_dir where written, are. This is optional but recommended.
@param fps This is the default fps used to calculate the time.
Will be overwritten by the actual fps of the video if video_dir is set
"""
import os
use_video_fps = os.path.exists(video_dir)
if use_video_fps:
from theora import Theora
if use_video_fps:
print "Using fps values from the actual video files"
else:
print "Using the default fps: " + str(fps)
for dirpath, dirnames, filenames in os.walk (old_dir):
os.mkdir (os.path.join (new_dir, dirpath[1+len (old_dir):]))
for filename in filenames:
old_file = (os.path.join(dirpath, filename))
new_file = (os.path.join(new_dir, dirpath[1+len (old_dir):], filename))
if use_video_fps:
video_file = os.path.join(video_dir, dirpath[1+len (old_dir):], os.path.splitext(filename)[0] + ".ogg")
video = Theora(video_file)
fps = int(video.fps_ratio[0] / video.fps_ratio[1])
print old_file + "->" + new_file
convertFile(old_file, new_file, fps)
