]> code.delx.au - transcoding/blobdiff - encode.py
Added detelecine option
[transcoding] / encode.py
index fc3b7c8944cbee01ed5c00aa874121a96422052c..31b765fe72a1652b6529a61af3199065b340c341 100755 (executable)
--- a/encode.py
+++ b/encode.py
@@ -1,8 +1,99 @@
 #!/usr/bin/env python
 
-import commands, optparse, subprocess, sys, os
+import optparse
+import re
+import subprocess
+import sys
+import os
+import shutil
+import tempfile
 
-class MencoderCommand(object):
+class FatalException(Exception):
+       pass
+
+def mkarg(arg):
+       if re.match("^[a-zA-Z0-9\-\\.,/@_:=]*$", arg):
+               return arg
+
+       if "'" not in arg:
+               return "'%s'" % arg
+       out = "\""
+       for c in arg:
+               if c in "\\$\"`":
+                       out += "\\"
+               out += c
+       out += "\""
+       return out
+
+class Command(object):
+       def __init__(self, profile, opts):
+               self.profile = profile
+               self.opts = opts
+       
+       def print_install_message(self):
+               print >>sys.stderr, "Problem with command: %s", self.name
+               if self.package:
+                       print >>sys.stderr, "Try running:\n# aptitude install %s", self.package
+       
+       def check_command(self, cmd):
+               if self.opts.dump:
+                       return
+               if subprocess.Popen(["which", cmd], stdout=open("/dev/null", "w")).wait() != 0:
+                       raise FatalException("Command '%s' is required" % cmd)
+       
+       def check_no_file(self, path):
+               if os.path.exists(path):
+                       raise FatalException("Output file '%s' exists." % path)
+
+       def do_exec(self, args):
+               if self.opts.dump:
+                       print " ".join(map(mkarg, args))
+               else:
+                       if subprocess.Popen(args).wait() != 0:
+                               raise FatalException("Failure executing command: %s" % args)
+
+
+class MP4Box(Command):
+       codec2exts = {
+               "xvid": "m4v",
+               "x264": "h264",
+               "faac": "aac",
+       }
+
+       def check(self):
+               self.check_command("mencoder")
+               self.check_command("MP4Box")
+               self.check_no_file(self.opts.output + ".mp4")
+
+       def run(self):
+               p = self.profile
+               video = "video.%s" % self.codec2exts[p.vcodec]
+               audio = "audio.%s" % self.codec2exts[p.acodec]
+               input = self.opts.output + ".avi" # From Mencoder command
+               output = self.opts.output + ".mp4"
+               mencoder = ["mencoder", input, "-ovc", "copy", "-oac", "copy", "-of"]
+               self.do_exec(["rm", "-f", output])
+               self.do_exec(mencoder + ["rawvideo", "-o", video])
+               self.do_exec(mencoder + ["rawaudio", "-o", audio])
+               self.do_exec(["MP4Box", "-add", video, "-add", audio, output])
+               self.do_exec(["rm", "-f", video, audio, input])
+
+
+
+class MKVMerge(Command):
+       def check(self):
+               self.check_command("mkvmerge")
+               self.check_no_file(self.opts.output + ".mkv")
+
+       def run(self):
+               input = self.opts.output + ".avi" # From Mencoder command
+               output = self.opts.output + ".mkv"
+               self.do_exec(["mkvmerge", "-o", output, input])
+               self.do_exec(["rm", "-f", input])
+
+
+
+class Mencoder(Command):
        codec2opts = {
                "lavc": "-lavcopts",
                "xvid": "-xvidencopts",
@@ -11,30 +102,34 @@ class MencoderCommand(object):
                "mp3lame": "-lameopts",
        }
 
-       def __init__(self, profile, opts):
-               self.profile = profile
-               self.opts = opts
-
-       def insertOptions(self, cmd):
-               def tryOpt(opt, var):
+       def insert_options(self, cmd):
+               def try_opt(opt, var):
                        if var is not None:
                                cmd.append(opt)
                                cmd.append(var)
-               tryOpt("-ss", self.opts.startpos)
-               tryOpt("-endpos", self.opts.endpos)
-               tryOpt("-dvd-device", self.opts.dvd)
-               tryOpt("-chapter", self.opts.chapter)
-               tryOpt("-aid", self.opts.audioid)
-               tryOpt("-sid", self.opts.subtitleid)
-               tryOpt("-vf", self.opts.vfilters)
-               tryOpt("-af", self.opts.afilters)
-
-       def substValues(self, cmd):
+               if self.opts.deinterlace:
+                       cmd += ["-vf-add", "pp=lb"]
+               if self.opts.detelecine:
+                       self.opts.ofps = "24000/1001"
+                       cmd += ["-vf-add", "pullup,softskip"]
+               try_opt("-fps", self.opts.ifps)
+               try_opt("-ofps", self.opts.ofps)
+               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,
+                       "output": self.opts.output + ".avi",
+                       "vpass": vpass,
                }
 
                return [x % subst for x in cmd]
@@ -43,69 +138,142 @@ class MencoderCommand(object):
                p = self.profile
                cmd = []
                cmd += ["mencoder", "%(input)s", "-o", "/dev/null"]
-               self.insertOptions(cmd)
-               cmd += ["-ovc", p.vcodec, self.codec2opts[p.vcodec], "pass=1:"+p.vopts]
+               self.insert_options(cmd)
+               cmd += ["-ovc", p.vcodec, self.codec2opts[p.vcodec], p.vopts]
                cmd += ["-oac", "copy"]
-               cmd = self.substValues(cmd)
+               cmd += self.profile.extra + self.profile.extra1
+               cmd = self.subst_values(cmd, vpass=1)
                return cmd
 
        def pass2(self):
                p = self.profile
                cmd = []
                cmd += ["mencoder", "%(input)s", "-o", "%(output)s"]
-               self.insertOptions(cmd)
-               cmd += ["-ovc", p.vcodec, self.codec2opts[p.vcodec], "pass=2:"+p.vopts]
+               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.substValues(cmd)
+               cmd += self.profile.extra + self.profile.extra2
+               cmd = self.subst_values(cmd, vpass=2)
                return cmd
 
+       def check(self):
+               self.check_command("mencoder")
+               self.check_no_file(self.opts.output + ".avi")
+
+       def run(self):
+               self.do_exec(self.pass1())
+               self.do_exec(self.pass2())
+
+
+
 class Profile(object):
-       def __init__(self, CommandClass, **kwargs):
+       def __init__(self, commands, **kwargs):
+               self.default_opts = {
+                       "vbitrate": 1000,
+                       "abitrate": 192,
+               }
                self.extra = []
-
-               self.CommandClass = CommandClass
+               self.extra1 = []
+               self.extra2 = []
+               self.commands = commands
                self.__dict__.update(kwargs)
+
        def __contains__(self, keyname):
                return hasattr(self, keyname)
 
+
 profiles = {
        "qt7" :
        Profile(
-               CommandClass=MencoderCommand,
+               commands=[Mencoder, MP4Box],
                vcodec="x264",
-               vopts="bitrate=%(vbitrate)d:me=umh:partitions=all:trellis=1:subq=7:bframes=1:direct_pred=auto",
+               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",
        ),
 
+       "x264" :
+       Profile(
+               commands=[Mencoder, MKVMerge],
+               vcodec="x264",
+               vopts="pass=%(vpass)d:bitrate=%(vbitrate)d:subq=6:frameref=6:me=umh:partitions=all:bframes=4:b_adapt:qcomp=0.7:keyint=250",
+               acodec="mp3lame",
+               aopts="abr:br=%(abitrate)d",
+       ),
+
        "xvid" :
        Profile(
-               CommandClass=MencoderCommand,
+               commands=[Mencoder],
                vcodec="xvid",
-               vopts="bitrate=%(vbitrate)d:vhq=4:autoaspect",
+               vopts="pass=%(vpass)d:bitrate=%(vbitrate)d:vhq=4:autoaspect",
                acodec="mp3lame",
                aopts="abr:br=%(abitrate)d",
-               extra=["-ffourcc", "DX50"],
+               extra2=["-ffourcc", "DX50"],
        ),
+
        "ipodxvid" :
        Profile(
-               CommandClass=MencoderCommand,
+               commands=[Mencoder, MP4Box],
                vcodec="xvid",
-               vopts="bitrate=%(vbitrate)d:vhq=4:autoaspect:max_bframes=0",
+               vopts="pass=%(vpass)d:bitrate=%(vbitrate)d:vhq=4:autoaspect:max_bframes=0",
                acodec="faac",
                aopts="br=%(abitrate)d:mpeg=4:object=2",
+               extra=["-vf-add", "scale=480:-10"],
        ),
-       "ipod264" :
+
+       "ipodx264" :
        Profile(
-               CommandClass=MencoderCommand,
+               commands=[Mencoder, MP4Box],
                vcodec="x264",
-               vopts="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",
+               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:turbo",
                acodec="faac",
-               aopts="br=%(abitrate)d:mpeg=4:object=2:raw",
-               extra=['-of', 'lavf', '-lavfopts', 'format=mp4', '-channels', '2', '-srate', '48000']
+               aopts="br=%(abitrate)d:mpeg=4:object=2",
+               extra=["-vf-add", "scale=480:-10"],
+               extra2=["-channels", "2", "-srate", "48000"],
+       ),
+
+       "nokiax264" :
+       Profile(
+               commands=[Mencoder, MP4Box],
+               default_opts={
+                       "vbitrate": 256,
+                       "abitrate": 96,
+               },
+               vcodec="x264",
+               vopts="pass=%(vpass)d:bitrate=%(vbitrate)d:nocabac:me=umh:partitions=all:trellis=1:subq=7:bframes=0:direct_pred=auto",
+               acodec="faac",
+               aopts="br=%(abitrate)d:mpeg=4:object=2",
+               extra=["-vf-add", "scale=320:-10"],
+       ),
+
+       "n97xvid" :
+       Profile(
+               commands=[Mencoder, MP4Box],
+               default_opts={
+                       "vbitrate": 1000,
+                       "abitrate": 96,
+               },
+               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",
+               extra=["-vf-add", "scale=640:-10"],
+       ),
+
+       "n97x264" :
+       Profile(
+               commands=[Mencoder, MP4Box],
+               default_opts={
+                       "vbitrate": 1000,
+                       "abitrate": 96,
+               },
+               vcodec="x264",
+               vopts="pass=%(vpass)d:bitrate=%(vbitrate)d:vbv_maxrate=2000:vbv_bufsize=2000:nocabac:me=umh:partitions=all:trellis=1:subq=7:bframes=0:direct_pred=auto:level_idc=20",
+               acodec="faac",
+               aopts="br=%(abitrate)d:mpeg=4:object=2",
+               extra=["-vf-add", "scale=640:-10"],
        ),
 }
 
@@ -119,13 +287,17 @@ def parse_args():
        else:
                profile_name = "xvid"
 
-       parser = optparse.OptionParser(usage="%prog [options] input output")
+       parser = optparse.OptionParser(usage="%prog [options] input [output]")
        parser.add_option("--dvd", action="store", dest="dvd")
+       parser.add_option("--deinterlace", action="store_true", dest="deinterlace")
+       parser.add_option("--detelecine", action="store_true", dest="detelecine")
        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("--vbitrate", action="store", dest="vbitrate", type="int")
+       parser.add_option("--abitrate", action="store", dest="abitrate", type="int")
        parser.add_option("--chapter", action="store", dest="chapter")
+       parser.add_option("--ifps", action="store", dest="ifps")
+       parser.add_option("--ofps", action="store", dest="ofps")
        parser.add_option("--startpos", action="store", dest="startpos")
        parser.add_option("--endpos", action="store", dest="endpos")
        parser.add_option("--audioid", action="store", dest="audioid")
@@ -134,32 +306,65 @@ def parse_args():
        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:])
+               opts, args = parser.parse_args(sys.argv[1:])
+               if len(args) == 1:
+                       input = args[0]
+                       output = os.path.splitext(os.path.basename(input))[0]
+               elif len(args) == 2:
+                       input, output = args
+               else:
+                       raise ValueError
        except Exception:
                parser.print_usage()
                sys.exit(1)
        
-       opts.input = input
-       opts.output = output
-       return opts
-
-def run(args, dump):
-       if dump:
-               print "".join(map(commands.mkarg, args))[1:]
+       if "://" not in input:
+               opts.input = os.path.abspath(input)
        else:
-               return subprocess.Popen(args).wait()
+               if opts.dvd:
+                       opts.dvd = os.path.abspath(opts.dvd)
+               opts.input = input
+
+       opts.output = os.path.abspath(output)
+
+       return opts
 
 def main():
        opts = parse_args()
+
+       # Find our profile
        try:
                profile = profiles[opts.profile_name]
        except KeyError:
-               print >>sys.stderr, "Profile '%s' not found!" % profile_name
+               print >>sys.stderr, "Profile '%s' not found!" % opts.profile_name
                sys.exit(1)
 
-       cmd = profile.CommandClass(profile, opts)
-       if run(cmd.pass1(), opts.dump) == 0 or opts.dump:
-               run(cmd.pass2(), opts.dump)
+       # Pull in default option values from the profile
+       for key, value in profile.default_opts.iteritems():
+               if getattr(opts, key) is None:
+                       setattr(opts, key, value)
+
+       # Run in a temp dir so that multiple instances can be run simultaneously
+       tempdir = tempfile.mkdtemp()
+       try:
+               os.chdir(tempdir)
+
+               try:
+                       commands = []
+                       for CommandClass in profile.commands:
+                               command = CommandClass(profile, opts)
+                               commands.append(command)
+                               command.check()
+                       for command in commands:
+                               command.run()
+
+               except FatalException, e:
+                       print >>sys.stderr, "Error:", str(e)
+                       sys.exit(1)
+
+       finally:
+               os.chdir("/")
+               shutil.rmtree(tempdir)
 
 if __name__ == "__main__":
        main()