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#!/usr/bin/python
#----------------------------------------------------
# Version: 0.2.0
# Author: Florian "Bluewind" Pritz <f-p@gmx.at>
#
# Licensed under WTFPL v2
# (see COPYING for full license text)
#
#----------------------------------------------------
# Converts a file to an MP4 which can be played in a flash movie
# Video: H264
# Audio: MPEG-4 AAC
#----------------------------------------------------
import sys
import os
import subprocess
from optparse import OptionParser
def main():
usage = "usage: %prog [options] <files>"
p = OptionParser(usage)
p.add_option("-s", "--size", dest="size", default=False,
help="use <dimension> instead of input dimensions (e.g. 123x123)", metavar="<dimension>")
p.add_option("--vb", dest="vbitrate", default="400000",
help="change the video bitrate", metavar="<bitrate>")
p.add_option("--ab", dest="abitrate", default="160000",
help="change the audio bitrate", metavar="<bitrate>")
p.add_option("-m", "--map", action="append", dest="maps", default=None,
help="change the mappings", metavar="<input_stream_id:sync_stream_id>")
p.add_option("--nd", action="store_false", dest="deinterlace", default=True,
help="don't deinterlace the video")
(options, args) = p.parse_args()
if len(args) == 0:
p.print_help()
sys.exit()
ffmpeg_args = []
if options.size:
ffmpeg_args.append("-s")
ffmpeg_args.append(options.size)
if options.vbitrate:
ffmpeg_args.append("-b")
ffmpeg_args.append(options.vbitrate)
if options.abitrate:
ffmpeg_args.append("-ab")
ffmpeg_args.append(options.abitrate)
if options.deinterlace:
ffmpeg_args.append("-deinterlace")
if options.maps[0]:
for cur_map in options.maps:
ffmpeg_args.append("-map")
ffmpeg_args.append(cur_map)
for name in args:
p1 = subprocess.Popen(["echo", "-n", name], stdout=subprocess.PIPE)
p2 = subprocess.Popen(["sed", "s/\(.*\)\..*/\\1/"], stdin=p1.stdout, stdout=subprocess.PIPE)
name_mp4 = p2.communicate()[0] + ".mp4"
subprocess.Popen(merge(
[["ffmpeg", "-i", name,
"-vcodec", "libx264", "-r", "25",
"-g", "250", "-keyint_min", "25",
"-coder", "ac", "-me_range", "16",
"-subq", "5", "-sc_threshold", "40",
"-acodec", "libfaac", "-ar", "44100",
"-cmp", "+chroma", "-partitions", "+parti4x4+partp8x8+partb8x8",
"-i_qfactor", "0.71", "-b_strategy",
"1", "-threads", "0", "-crf", "30", "-y"],
ffmpeg_args, [name_mp4]]
)).communicate()[0]
subprocess.Popen(["qt-faststart", name_mp4, "done_"+name_mp4]).communicate()[0]
def merge(seq):
merged = []
for s in seq:
for x in s:
merged.append(x)
return merged
def file_exists(filename, options):
if os.path.exists(filename) and not options.force:
sys.stderr.write('Target "'+filename+'" already exists. Use --force to overwrite.\n')
sys.exit(1)
if __name__ == '__main__':
main()
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