#!/usr/bin/env python

# export-video.py
# ---------------
# ré-écriture complète du script bash eponyme en python
import sys, getopt, re, os

def usage ():
	print ("export-video -i input -o output [-d --desinterlace]")
params = {\
	"desinterlace":False,\
	"file_output":"video",\
	"file_input":"",\
	"video_bitrate":"600k",\
	"audio_bitrate":"96k",\
	"video_quality":"good",\
	"h264_vcommand":"-trellis 0 -me_method umh -subq 8 -me_range 16 -bf 3 -rc_lookahead 16 -g 250",\
	"h264_acommand":"-strict -2'",\
	"webm_vcommand":"rc_lookahead 16 -keyint_min 0 -g 250 -skip_threshold 0 -level 116 -bufsize 500k",\
	"webm_acommand":"-strict -2",\
	"verbose":True,\
	"pattern":""}

VERSION = "0.1dev"
ffmpeg = ""
	
def listFile (directory, pattern):
	if params["verbose"]: print ("searching in directory" , directory)
	files_list=[]
	try:
		dirs = os.listdir(directory)
	except notDirectory:
		print ("error : not a directory?")
		return

	for i in dirs:
		
		if os.path.isdir(directory+"/"+i):
			files_list.extend(listFile(directory+"/"+i, pattern))
		else:
			if re.search(pattern, i) is not None:
				files_list.append(directory + "/"+ i)

	return files_list

	
def processArg (sysarg):
	output = "video"
	try:
		opts, args = getopt.getopt(sysarg, "hi:o:dp:", ["help","input=" "output=", "desinterlace", "pattern="])
	except getopt.GetoptError:          
        	usage()                         
        	sys.exit(2)
	for opt, arg in opts:
		if opt in ("-h, --help"):
			usage()
			sys.exit()
		if opt in ("-o", "--output"):
			print ("output spécifié " + arg)
			params["file_output"] = arg
		if opt in ("-d","--desinterlace"):
			print ("desinterlace on")
			params["desinterlace"] = True
		if opt in ("-i","--input"):
			params["file_input"] = arg
		if opt in ("-p", "--pattern"):
			params["pattern"] = "^\\w*."+arg+"$"


if __name__ == "__main__":
	processArg(sys.argv[1:])
	if not params["file_input"]:
		print ("you must specify a file / directory" + params["file_input"])
		sys.exit(2)
	if os.path.isdir (params["file_input"]):
		if params["verbose"]: print (params["file_input"], " is a directory")
		video_files = listFile(params["file_input"], params["pattern"])