]> code.delx.au - transcoding/blobdiff - encode.py
Formatting changes
[transcoding] / encode.py
index c376cb6dec51becf6280262aec7ee21b3ee28fbb..371d27d9d0be56e544f28d6686d47cc78ef1ea35 100755 (executable)
--- a/encode.py
+++ b/encode.py
 #!/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()