import os, dircache, sys, string

pathToConvertor="D:\\Archive\\Multimedia\\ffmpeg2theora-0.19.exe";

def convert(filePath, args="", deleteOriginal=False):
	size=os.stat(filePath)[6] #file size
	if not args=="":
		toExec=pathToConvertor+" "+args+" "+filePath
	else:
		toExec=pathToConvertor+" "+filePath

	os.system(toExec)
	newPath=string.replace(filePath, ".AVI", ".OGG")
	sizeDelta=size-os.stat(newPath)[6]
	if deleteOriginal==True:
		os.remove(filePath)

	return sizeDelta


def traverse(rootdir):
	filelist=[]
	a=dircache.listdir(rootdir)
	totalSizeDelta=0
	for root, dir, files in os.walk(rootdir):
		for object in files:
			capitalized=object.upper()
			if capitalized.endswith(".AVI"):
				fullPath=os.path.join(root, object)
				totalSizeDelta+=convert(fullPath)#, "-v 10", False)
				filelist.append(fullPath)
	return totalSizeDelta, filelist
				

savedSpace, convertedFiles=traverse("D:\\Stuff\\Photos\\_dig\\Netherlands")
print "You saved %i bytes" % savedSpace
#if you haven't deleted originals, you can still do that
#the list is in convertedFiles