X-Git-Url: https://code.delx.au/transcoding/blobdiff_plain/dff2843c4cb5e8d36e8e7f0970b155ee0761b781..07133ca24761d5e4c6ddebcebfa46681e827e02f:/encode.py diff --git a/encode.py b/encode.py index c376cb6..371d27d 100755 --- a/encode.py +++ b/encode.py @@ -1,94 +1,189 @@ #!/usr/bin/env python -import optparse, subprocess, sys - -codecs = { -"x264": -[ - "mencoder", "%(input)s", "-o", "%(output)s", - "-vf", "%(filters)s", - "-ovc", "x264", "-x264encopts", "pass=%(pass)d:bitrate=%(vbitrate)d:me=umh:partitions=all:trellis=1", - "-oac", "faac", "-faacopts", "br=%(abitrate)d:mpeg=4:object=2", "-channels", "2", "-srate", "48000", -], - -"xvid": -[ - "mencoder", "%(input)s", "-o", "%(output)s", - "-ffourcc", "DX50", - "-vf", "%(filters)s", - "-ovc", "xvid", "-xvidencopts", "pass=%(pass)d:bitrate=%(vbitrate)d:vhq=4", - "-oac", "mp3lame", "-lameopts", "abr:br=%(abitrate)d", -], +import commands +import optparse +import subprocess +import sys +import os +import tempfile +import shutil + +class MencoderCommand(object): + codec2opts = { + "lavc": "-lavcopts", + "xvid": "-xvidencopts", + "x264": "-x264encopts", + "faac": "-faacopts", + "mp3lame": "-lameopts", + } + + def __init__(self, profile, opts): + self.profile = profile + self.opts = opts + + def insert_options(self, cmd): + def try_opt(opt, var): + if var is not None: + cmd.append(opt) + cmd.append(var) + if self.opts.deinterlace: + cmd += ["-vf-add", "pp=ci"] + try_opt("-ss", self.opts.startpos) + try_opt("-endpos", self.opts.endpos) + try_opt("-dvd-device", self.opts.dvd) + try_opt("-chapter", self.opts.chapter) + try_opt("-aid", self.opts.audioid) + try_opt("-sid", self.opts.subtitleid) + try_opt("-vf-add", self.opts.vfilters) + try_opt("-af", self.opts.afilters) + + def subst_values(self, cmd, vpass): + subst = { + "vbitrate": self.opts.vbitrate, + "abitrate": self.opts.abitrate, + "input": self.opts.input, + "output": self.opts.output, + "vpass": vpass, + } + + return [x % subst for x in cmd] + + def pass1(self): + p = self.profile + cmd = [] + cmd += ["mencoder", "%(input)s", "-o", "/dev/null"] + self.insert_options(cmd) + cmd += ["-ovc", p.vcodec, self.codec2opts[p.vcodec], p.vopts] + cmd += ["-oac", "copy"] + cmd = self.subst_values(cmd, vpass=1) + return cmd + + def pass2(self): + p = self.profile + cmd = [] + cmd += ["mencoder", "%(input)s", "-o", "%(output)s"] + self.insert_options(cmd) + cmd += ["-ovc", p.vcodec, self.codec2opts[p.vcodec], p.vopts] + cmd += ["-oac", p.acodec, self.codec2opts[p.acodec], p.aopts] + if self.opts.episode_name: + cmd += ["-info", "name='%s'" % self.opts.episode_name] + cmd += self.profile.extra + cmd = self.subst_values(cmd, vpass=2) + return cmd + +class Profile(object): + def __init__(self, CommandClass, **kwargs): + self.extra = [] + + self.CommandClass = CommandClass + self.__dict__.update(kwargs) + def __contains__(self, keyname): + return hasattr(self, keyname) + +profiles = { + "qt7" : + Profile( + CommandClass=MencoderCommand, + vcodec="x264", + vopts="pass=%(vpass)d:bitrate=%(vbitrate)d:me=umh:partitions=all:trellis=1:subq=7:bframes=1:direct_pred=auto", + acodec="faac", + aopts="br=%(abitrate)d:mpeg=4:object=2", + ), + + "xvid" : + Profile( + CommandClass=MencoderCommand, + vcodec="xvid", + vopts="pass=%(vpass)d:bitrate=%(vbitrate)d:vhq=4:autoaspect", + acodec="mp3lame", + aopts="abr:br=%(abitrate)d", + extra=["-ffourcc", "DX50"], + ), + + "ipodxvid" : + Profile( + CommandClass=MencoderCommand, + vcodec="xvid", + vopts="pass=%(vpass)d:bitrate=%(vbitrate)d:vhq=4:autoaspect:max_bframes=0", + acodec="faac", + aopts="br=%(abitrate)d:mpeg=4:object=2", + ), + + "ipod264" : + Profile( + CommandClass=MencoderCommand, + vcodec="x264", + vopts="pass=%(vpass)d:bitrate=%(vbitrate)d:vbv_maxrate=1500:vbv_bufsize=2000:nocabac:me=umh:partitions=all:trellis=1:subq=7:bframes=0:direct_pred=auto:level_idc=30:global_header:turbo", + acodec="faac", + aopts="br=%(abitrate)d:mpeg=4:object=2:raw", + extra=["-of", "lavf", "-lavfopts", "format=mp4", "-channels", "2", "-srate", "48000"] + ), } -def parseArgs(): - for codec in codecs.keys(): - if sys.argv[0].find(codec) >= 0: + + +def parse_args(): + for profile_name in profiles.keys(): + if sys.argv[0].find(profile_name) >= 0: break else: - codec = "x264" + profile_name = "xvid" parser = optparse.OptionParser(usage="%prog [options] input output") parser.add_option("--dvd", action="store", dest="dvd") - parser.add_option("--filters", action="store", dest="filters", default="denoise3d") - parser.add_option("--vbitrate", action="store", dest="vbitrate", type="int", default=600) + parser.add_option("--deinterlace", action="store_true", dest="deinterlace") + parser.add_option("--vfilters", action="store", dest="vfilters") + parser.add_option("--afilters", action="store", dest="afilters") + parser.add_option("--vbitrate", action="store", dest="vbitrate", type="int", default=1000) parser.add_option("--abitrate", action="store", dest="abitrate", type="int", default=192) parser.add_option("--chapter", action="store", dest="chapter") parser.add_option("--startpos", action="store", dest="startpos") parser.add_option("--endpos", action="store", dest="endpos") parser.add_option("--audioid", action="store", dest="audioid") - parser.add_option("--codec", action="store", dest="codec", default=codec) + parser.add_option("--subtitleid", action="store", dest="subtitleid") + parser.add_option("--profile", action="store", dest="profile_name", default=profile_name) + parser.add_option("--episode-name", action="store", dest="episode_name") parser.add_option("--dump", action="store_true", dest="dump") try: opts, (input, output) = parser.parse_args(sys.argv[1:]) - except: + except Exception: parser.print_usage() sys.exit(1) - return opts, codec, input, output + if "://" not in input: + opts.input = os.path.join(os.getcwd(), input) + else: + if opts.dvd: + opts.dvd = os.path.join(os.getcwd(), opts.dvd) + opts.input = input + + opts.output = os.path.join(os.getcwd(), output) + return opts def run(args, dump): if dump: - print " ".join(args) + print "".join(map(commands.mkarg, args))[1:] else: - subprocess.Popen(args).wait() + return subprocess.Popen(args).wait() def main(): - opts, codec, input, output = parseArgs() + opts = parse_args() try: - cmd = codecs[codec] - except: - print >>sys.stderr, "Codec '%s' not found!" % codec + profile = profiles[opts.profile_name] + except KeyError: + print >>sys.stderr, "Profile '%s' not found!" % opts.profile_name sys.exit(1) - - def insertOpt(opt, var): - if var: - cmd.insert(1, var) - cmd.insert(1, opt) - insertOpt("-ss", opts.startpos) - insertOpt("-endpos", opts.endpos) - insertOpt("-dvd-device", opts.dvd) - insertOpt("-chapter", opts.chapter) - insertOpt("-aid", opts.audioid) - - subst = { - "vbitrate": opts.vbitrate, - "abitrate": opts.abitrate, - "filters": opts.filters, - "input": input, - } - - # Pass 1 - subst["pass"] = 1 - subst["output"] = "/dev/null" - run([x % subst for x in cmd], opts.dump) - - # Pass 2 - subst["pass"] = 2 - subst["output"] = output - run([x % subst for x in cmd], opts.dump) + tempdir = tempfile.mkdtemp() + try: + os.chdir(tempdir) + cmd = profile.CommandClass(profile, opts) + if run(cmd.pass1(), opts.dump) == 0 or opts.dump: + run(cmd.pass2(), opts.dump) + finally: + os.chdir("/") + shutil.rmtree(tempdir) if __name__ == "__main__": main()