This file is indexed.

/usr/share/transmageddon/transmageddon.py is in transmageddon 0.25-2.

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The actual contents of the file can be viewed below.

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#! /usr/bin/env python3
# -.- coding: utf-8 -.-

# Transmageddon
# Copyright (C) 2009,2010,2011,2012 Christian Schaller <uraeus@gnome.org>
# 
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.



import sys
import os

os.environ["GST_DEBUG_DUMP_DOT_DIR"] = "/tmp"

import which
import time
from gi.repository import Notify
from gi.repository import GdkX11, Gio, Gtk, GLib, Gst, GstPbutils
Gst.init(None)
from gi.repository import GObject
GObject.threads_init()

import transcoder_engine
from urllib.parse import urlparse
import codecfinder
import about
import presets
import utils
import datetime



#major, minor, patch = Gst.pygst_version
#if (major == 0) and (patch < 22):
#   print("You need version 0.10.22 or higher of Gstreamer-python for Transmageddon")
#   sys.exit(1)

major, minor, patch = GObject.pygobject_version
if (major == 2) and (minor < 18):
   print("You need version 2.18.0 or higher of pygobject for Transmageddon")
   sys.exit(1)



TARGET_TYPE_URI_LIST = 80
dnd_list = [ ( 'text/uri-list', 0, TARGET_TYPE_URI_LIST ) ]

supported_containers = [
        "Ogg",		#0
        "Matroska",	#1
        "AVI",		#2
        "MPEG PS",	#3
        "MPEG TS",	#4
        "AVCHD/BD",	#5
        "FLV",		#6
        "Quicktime",	#7
        "MPEG4",	#8
        "3GPP",		#9
        "MXF",		#10
        "ASF", 		#11
        "I can not get this item to show for some reason",
        "WebM"		#12
]

supported_audio_codecs = [
       "vorbis",
       "flac",
       "mp3",
       "aac",
       "ac3",
       "speex",
       "celt",
       "amrnb",
       "wma2"
]

supported_video_codecs = [
       "theora",
       "dirac",
       "h264",
       "mpeg2",
       "mpeg4",
       "h263p",
       "wmv2",
       "vp8"
]

# Maps containers to the codecs they support.  The first two elements are
# "special" in that they are the default audio/video selections for that
# container.
supported_video_container_map = {
    'Ogg':        [ 'Theora', 'Dirac', 'On2 vp8' ],
    'MXF':        [ 'H264', 'MPEG2', 'MPEG4' ],
    'Matroska':   [ 'Dirac', 'Theora', 'H264', 'On2 vp8',
                    'MPEG4', 'MPEG2', 'H263+' ],
    'AVI':        [ 'H264', 'Dirac', 'MPEG2', 'MPEG4',
                    'Windows Media Video 2', 'On2 vp8' ],
    'Quicktime':  [ 'H264', 'Dirac', 'MPEG2', 'MPEG4', 'On2 vp8' ],
    'MPEG4':      [ 'H264', 'MPEG2', 'MPEG4' ],
    'FLV':        [ 'H264'],
    '3GPP':       [ 'H264', 'MPEG2', 'MPEG4', 'H263+' ],
    'MPEG PS':    [ 'MPEG2', 'MPEG1', 'H264', 'MPEG4' ],
    'MPEG TS':    [ 'MPEG2', 'MPEG1', 'H264', 'MPEG4', 'Dirac' ],
    'AVCHD/BD':   [ 'H264' ],
    'ASF':        [ 'Windows Media Video 2' ],
    'WebM':       [ 'On2 vp8']
}

supported_audio_container_map = {
    'Ogg':         [ 'Vorbis', 'FLAC', 'Speex', 'Celt Ultra' ],
    'MXF':         [ 'mp3', 'AAC', 'AC3' ],
    'Matroska':    [ 'FLAC', 'AAC', 'AC3', 'Vorbis' ],
    'AVI':         [ 'mp3', 'AC3', 'Windows Media Audio 2' ],
    'Quicktime':   [ 'AAC', 'AC3', 'mp3' ],
    'MPEG4':       [ 'AAC', 'mp3' ],
    '3GPP':        [ 'AAC', 'mp3', 'AMR-NB' ],
    'MPEG PS':     [ 'mp3', 'AC3', 'AAC', 'mp2' ],
    'MPEG TS':     [ 'mp3', 'AC3', 'AAC', 'mp2' ],
    'AVCHD/BD':    [ 'AC3' ],
    'FLV':         [ 'mp3' ],
    'ASF':         [ 'Windows Media Audio 2', 'mp3'],
    'WebM':        [ 'Vorbis']

    # "No container" is 13th option here (0-12)
    # if adding more containers make sure to update code for 'No container as it is placement tied'
}

class Transmageddon(Gtk.Application):
   def __init__(self):
       Gtk.Application.__init__(self)
   
   def do_activate(self):
       self.win = TransmageddonUI(self)
       self.win.show_all()

   def do_startup (self):
       # start the application
       Gtk.Application.do_startup(self)

       # create a menu
       menu = Gio.Menu()
       # append to the menu the options
       menu.append(_("About"), "app.about")
       menu.append(_("Quit"), "app.quit")
       menu.append(_("Debug"), "app.debug")
       
       # set the menu as menu of the application
       self.set_app_menu(menu)

       # create an action for the option "new" of the menu
       debug_action = Gio.SimpleAction.new("debug", None)
       debug_action.connect("activate", self.debug_cb)
       self.add_action(debug_action)

       

       # option "about"
       about_action = Gio.SimpleAction.new("about", None)
       about_action.connect("activate", self.about_cb)
       self.add_action(about_action)

       # option "quit"
       quit_action = Gio.SimpleAction.new("quit", None)
       quit_action.connect("activate", self.quit_cb)
       self.add_action(quit_action)

   # callback function for "new"
   def debug_cb(self, action, parameter):
       dotfile = "/tmp/transmageddon-debug-graph.dot"
       pngfile = "/tmp/transmageddon-pipeline.png"
       if os.access(dotfile, os.F_OK):
           os.remove(dotfile)
       if os.access(pngfile, os.F_OK):
           os.remove(pngfile)
       Gst.debug_bin_to_dot_file (self.win._transcoder.pipeline, \
               Gst.DebugGraphDetails.ALL, 'transmageddon-debug-graph')
       # check if graphviz is installed with a simple test
       try:
           dot = which.which("dot")
           os.system(dot + " -Tpng -o " + pngfile + " " + dotfile)
           Gtk.show_uri(self.win.get_screen(), "file://"+pngfile, 0)
       except which.WhichError:
              print("The debug feature requires graphviz (dot) to be installed.")
              print("Transmageddon can not find the (dot) binary.")

   # callback function for "about"
   def about_cb(self, action, parameter):
       """
           Show the about dialog.
       """
       about.AboutDialog()

   # callback function for "quit"
   def quit_cb(self, action, parameter):
        print("You have quit.")
        self.quit()

class TransmageddonUI(Gtk.ApplicationWindow):
   def on_window_destroy(self, widget, data=None):
       Gtk.main_quit()

   def __init__(self, app):
       Gtk.Window.__init__(self, title="Transmageddon", application=app)
       """This class loads the GtkBuilder file of the UI"""

       # create discoverer object
       self.discovered = GstPbutils.Discoverer.new(50000000000)
       self.discovered.connect('discovered', self.succeed)
       self.discovered.start()

       self.audiorows=[] # set up the lists for holding the codec combobuttons
       self.videorows=[]
       self.audiocodecs=[] # create lists to store the ordered lists of codecs
       self.videocodecs=[]
	
       # set flag so we remove bogus value from menu only once
       self.bogus=0
       
       # init the notification area
       Notify.init('Transmageddon')

       # These dynamic comboboxes allow us to support files with 
       # multiple streams eventually
       def dynamic_comboboxes_audio(streams,extra = []):
           streams=1 # this will become a variable once we support multiple streams
           vbox = Gtk.VBox()

           x=-1
           while x < (streams-1):
               x=x+1
               combo = Gtk.ComboBoxText.new()
               self.audiorows.append(combo)
               vbox.add(self.audiorows[x])
           return vbox

       def dynamic_comboboxes_video(streams,extra = []):
           streams=1
           vbox = Gtk.VBox()

           x=-1
           while x < (streams-1):
               x=x+1
               combo = Gtk.ComboBoxText.new()
               self.videorows.append(combo)
               vbox.add(self.videorows[x])
           return vbox

       self.builder = Gtk.Builder()
       self.builder.set_translation_domain("transmageddon")
       uifile = "transmageddon.ui"
       self.builder.add_from_file(uifile)

       #Define functionality of our button and main window
       self.box = self.builder.get_object("window")
       self.FileChooser = self.builder.get_object("FileChooser")
       self.videoinformation = self.builder.get_object("videoinformation")
       self.audioinformation = self.builder.get_object("audioinformation")
       self.videocodec = self.builder.get_object("videocodec")
       self.audiocodec = self.builder.get_object("audiocodec")
       self.audiobox = dynamic_comboboxes_audio([GObject.TYPE_PYOBJECT])
       self.videobox = dynamic_comboboxes_video([GObject.TYPE_PYOBJECT])
       self.CodecBox = self.builder.get_object("CodecBox")
       self.presetchoice = self.builder.get_object("presetchoice")
       self.containerchoice = self.builder.get_object("containerchoice")
       self.rotationchoice = self.builder.get_object("rotationchoice")
       self.transcodebutton = self.builder.get_object("transcodebutton")
       self.ProgressBar = self.builder.get_object("ProgressBar")
       self.cancelbutton = self.builder.get_object("cancelbutton")
       self.StatusBar = self.builder.get_object("StatusBar")
       self.CodecBox.attach(self.audiobox, 0, 1, 1, 2, yoptions = Gtk.AttachOptions.FILL)
       self.CodecBox.attach(self.videobox, 2, 3, 1, 2, yoptions = Gtk.AttachOptions.FILL)
       self.CodecBox.show_all()
       self.containerchoice.connect("changed", self.on_containerchoice_changed)
       self.presetchoice.connect("changed", self.on_presetchoice_changed)
       self.audiorows[0].connect("changed", self.on_audiocodec_changed)
       self.videorows[0].connect("changed", self.on_videocodec_changed)
       self.rotationchoice.connect("changed", self.on_rotationchoice_changed)


       self.window=self.builder.get_object("window")
       self.builder.connect_signals(self) # Initialize User Interface
       self.add(self.box)

       
       def get_file_path_from_dnd_dropped_uri(self, uri):
           # get the path to file
           path = ""
           if uri.startswith('file:\\\\\\'): # windows
               path = uri[8:] # 8 is len('file:///')
           elif uri.startswith('file://'): # nautilus, rox
               path = uri[7:] # 7 is len('file://')
           elif uri.startswith('file:'): # xffm
               path = uri[5:] # 5 is len('file:')
           return path


       # This could should be fixed and re-enabled to allow drag and drop

       def on_drag_data_received(widget, context, x, y, selection, target_type, \
               timestamp):
           if target_type == TARGET_TYPE_URI_LIST:
               uri = selection.data.strip('\r\n\x00')
               self.builder.get_object ("FileChooser").set_uri(uri)


       # self.connect('drag_data_received', on_drag_data_received)
       #Gtk.drag_dest_set(self,  Gtk.DEST_DEFAULT_MOTION |
       #        Gtk.DEST_DEFAULT_HIGHLIGHT | Gtk.DEST_DEFAULT_DROP, dnd_list, \
       #        Gdk.DragAction.COPY)


       self.start_time = False
       self.multipass = 0
       self.passcounter = 0
       
       # Set the Videos XDG UserDir as the default directory for the filechooser
       # also make sure directory exists
       #if 'get_user_special_dir' in GLib.__dict__:
       self.videodirectory = \
                   GLib.get_user_special_dir(GLib.UserDirectory.DIRECTORY_VIDEOS)
       self.audiodirectory = \
                   GLib.get_user_special_dir(GLib.UserDirectory.DIRECTORY_MUSIC)
       #else:
       #    print("XDG video or audio directory not available")
       #    self.videodirectory = os.getenv('HOME')
       #    self.audiodirectory = os.getenv('HOME')
       if self.videodirectory is None:
           self.videodirectory = os.getenv('HOME')
           self.audiodirectory = os.getenv('HOME')
       CheckDir = os.path.isdir(self.videodirectory)
       if CheckDir == (False):
           os.mkdir(self.videodirectory)
       CheckDir = os.path.isdir(self.audiodirectory)
       if CheckDir == (False):
           os.mkdir(self.audiodirectory)
       self.FileChooser.set_current_folder(self.videodirectory)

       # Setting AppIcon
       FileExist = os.path.isfile("../../share/pixmaps/transmageddon.svg")
       if FileExist:
           self.set_icon_from_file( \
                   "../../share/pixmaps/transmageddon.svg")
       else:
           try:
               self.set_icon_from_file("transmageddon.svg")
           except:
               print("failed to find appicon")

       # default all but top box to insensitive by default
       # self.containerchoice.set_sensitive(False)
       self.CodecBox.set_sensitive(False)
       self.transcodebutton.set_sensitive(False)
       self.cancelbutton.set_sensitive(False)
       self.presetchoice.set_sensitive(False)
       self.containerchoice.set_sensitive(False)
       self.rotationchoice.set_sensitive(False)
       
       # set default values for various variables
       self.AudioCodec = Gst.caps_from_string("audio/x-vorbis")
       self.VideoCodec = Gst.caps_from_string("video/x-theora")
       self.ProgressBar.set_text(_("Transcoding Progress"))
       self.codeccontainer = False
       self.vsourcecaps = False
       self.asourcecaps = False
       self.videopasstoggle=False # toggle for passthrough mode chosen
       self.audiopasstoggle=False
       self.videopass=False # toggle for enabling adding of video passthrough on menu
       self.audiopass=False
       self.containertoggle=False # used to not check for encoders with pbutils
       self.discover_done=False # lets us know that discover is finished
       self.missingtoggle=False
       self.interlaced=False
       self.havevideo=False # tracks if input file got video
       self.haveaudio=False
       self.devicename = "nopreset"
       self.nocontaineroptiontoggle=False
       self.outputdirectory=False # directory for holding output directory value
       # create variables to store passthrough options slot in the menu
       self.audiopassmenuno=1
       self.videopassmenuno=1
       self.videonovideomenuno=-2
       # create toggle so I can split codepath depending on if I using a preset
       # or not
       self.usingpreset=False
       self.presetaudiocodec=Gst.Caps.new_empty()
       self.presetvideocodec=Gst.Caps.new_empty()
       self.inputvideocaps=None # using this value to store videocodec name to feed uridecodebin to avoid decoding video when not keeping video
       self.nocontainernumber = int(13) # this needs to be set to the number of the no container option in the menu (from 0)
       self.p_duration = Gst.CLOCK_TIME_NONE
       self.p_time = Gst.Format.TIME

       # Populate the Container format combobox
       # print("do we try to populate container choice")
       for i in supported_containers:
           self.containerchoice.append_text(i)
       # add i18n "No container"option
       self.containerchoice.append_text(_("No container (Audio-only)"))

       # Populate the rotatation box
       # print("populating rotationbox")
       self.rotationlist = [_("No rotation (default)"),\
                            _("Clockwise 90 degrees"), \
                            _("Rotate 180 degrees"),
                            _("Counterclockwise 90 degrees"), \
                            _("Horizontal flip"),
                            _("Vertical flip"), \
                            _("Upper left diagonal flip"),
                            _("Upper right diagnonal flip") ]

       for y in self.rotationlist: 
           self.rotationchoice.append_text(y)

       self.rotationchoice.set_active(0)
       self.rotationvalue = int(0)
      
       # Populate Device Presets combobox
       # print("starting preset population")
       devicelist = []
       shortname = []
       preset_list = sorted(list(presets.get().items()),
                            key = (lambda x: x[1].make + x[1].model))
       for x, (name, device) in enumerate(preset_list):
           self.presetchoice.append_text(str(device))
           devicelist.append(str(device))
           shortname.append(str(name))

       for (name, device) in (list(presets.get().items())):
           shortname.append(str(name))
       # self.presetchoices = dict(zip(devicelist, shortname))
       self.presetchoices = shortname
       self.presetchoice.prepend_text(_("No Presets"))

       self.waiting_for_signal="False"

   # Get all preset values
   def reverse_lookup(self,v):
       for k in codecfinder.codecmap:
           if codecfinder.codecmap[k] == v:
               return k

   def provide_presets(self,devicename):
       devices = presets.get()
       device = devices[devicename]
       preset = device.presets["Normal"]
       self.usingpreset=True
       self.containerchoice.set_active(-1) # resetting to -1 to ensure population of menu triggers
       self.presetaudiocodec=Gst.caps_from_string(preset.acodec.name)
       self.AudioCodec=Gst.caps_from_string(preset.acodec.name)
       self.presetvideocodec=Gst.caps_from_string(preset.vcodec.name)
       self.VideoCodec=Gst.caps_from_string(preset.vcodec.name)
       if preset.container == "application/ogg":
           self.containerchoice.set_active(0)
       elif preset.container == "video/x-matroska":
           self.containerchoice.set_active(1)
       elif preset.container == "video/x-msvideo":
           self.containerchoice.set_active(2)
       elif preset.container == "video/mpeg,mpegversion=2,systemstream=true":
           self.containerchoice.set_active(3)
       elif preset.container == "video/mpegts,systemstream=true,packetsize=188":
           self.containerchoice.set_active(4)
       elif preset.container == "video/mpegts,systemstream=true,packetsize=192":
           self.containerchoice.set_active(5)
       elif preset.container == "video/x-flv":
           self.containerchoice.set_active(6)
       elif preset.container == "video/quicktime,variant=apple":
           self.containerchoice.set_active(7)
       elif preset.container == "video/quicktime,variant=iso":
           self.containerchoice.set_active(8)
       elif preset.container == "video/quicktime,variant=3gpp":
           self.containerchoice.set_active(9)
       elif preset.container == "application/mxf":
           self.containerchoice.set_active(10)
       elif preset.container == "video/x-ms-asf":
           self.containerchoice.set_active(11)
       elif preset.container == "video/webm":
           self.containerchoice.set_active(12)
       else:
            print("failed to set container format from preset data")


       # Check for number of passes
       passes = preset.vcodec.passes
       if passes == "0":
           self.multipass = 0
       else:
           self.multipass = int(passes)
           self.passcounter = int(0)

   # Create query on uridecoder to get values to populate progressbar 
   # Notes:
   # Query interface only available on uridecoder, not decodebin2)
   # FORMAT_TIME only value implemented by all plugins used
   # a lot of original code from Gst-python synchronizer.py example
   def Increment_Progressbar(self):
       # print("incrementing progressbar")
       if self.start_time == False:  
           self.start_time = time.time()
       try:
           success, position = \
                   self._transcoder.uridecoder.query_position(Gst.Format.TIME)
       except:
           position = Gst.CLOCK_TIME_NONE

       try:
           success, duration = \
                   self._transcoder.uridecoder.query_duration(Gst.Format.TIME)
       except:
           duration = Gst.CLOCK_TIME_NONE
       if position != Gst.CLOCK_TIME_NONE:
           if duration != 0:
               value = float(position) / duration
               if float(value) < (1.0) and float(value) >= 0:
                   self.ProgressBar.set_fraction(value)
                   percent = (value*100)
                   timespent = time.time() - self.start_time
                   percent_remain = (100-percent)
                   if percent != 0:
                       rem = (timespent / percent) * percent_remain
                   else: 
                       rem = 0.1
                   min = rem / 60
                   sec = rem % 60
                   time_rem = _("%(min)d:%(sec)02d") % {
                       "min": min,
                       "sec": sec,
                       }
                   if percent_remain > 0.5:
                       if self.passcounter == int(0):
                           txt = "Estimated time remaining: %(time)s"
                           self.ProgressBar.set_text(_(txt) % \
                                {'time': str(time_rem)})
                       else:
                           txt = "Pass %(count)d time remaining: %(time)s"
                           self.ProgressBar.set_text(_(txt) % { \
                               'count': self.passcounter, \
                               'time': str(time_rem), })
                   return True
               else:
                   self.ProgressBar.set_fraction(0.0)
                   return False
           else:
               return False

   # Call GObject.timeout_add with a value of 500millisecond to regularly poll
   # for position so we can
   # use it for the progressbar
   def ProgressBarUpdate(self, source):
       GObject.timeout_add(500, self.Increment_Progressbar)

   def _on_eos(self, source):
       context_id = self.StatusBar.get_context_id("EOS")
       if self.passcounter == int(0):
           self.StatusBar.push(context_id, (_("File saved to %(dir)s") % \
                   {'dir': self.outputdirectory}))
           uri = "file://" + os.path.abspath(os.path.curdir) + "/transmageddon.svg"
           notification = Notify.Notification.new("Transmageddon", (_("%(file)s saved to %(dir)s") % {'dir': self.outputdirectory, 'file': self.outputfilename}), uri)
           notification.show()
           self.FileChooser.set_sensitive(True)
           self.containerchoice.set_sensitive(True)
           self.CodecBox.set_sensitive(True)
           self.presetchoice.set_sensitive(True)
           self.cancelbutton.set_sensitive(False)
           self.transcodebutton.set_sensitive(True)
           self.rotationchoice.set_sensitive(True)
           self.start_time = False
           self.ProgressBar.set_text(_("Done Transcoding"))
           self.ProgressBar.set_fraction(1.0)
           self.start_time = False
           self.multipass = 0
           self.passcounter = 0
           self.audiopasstoggle=False
           self.videopasstoggle=False
           self.houseclean=False # due to not knowing which APIs to use I need
                                 # this toggle to avoid errors when cleaning
                                 # the codec comboboxes
       else:
           self.start_time = False
           if self.passcounter == (self.multipass-1):
               self.StatusBar.push(context_id, (_("Writing %(filename)s") % {'filename': self.outputfilename}))
               self.passcounter = int(0)
               self._start_transcoding()
           else:
               self.StatusBar.push(context_id, (_("Pass %(count)d Complete. ") % \
                   {'count': self.passcounter}))
               self.passcounter = self.passcounter+1
               self._start_transcoding()

 
   def succeed(self, discoverer, info, error):
       result=GstPbutils.DiscovererInfo.get_result(info)
       if result != GstPbutils.DiscovererResult.ERROR:
           streaminfo=info.get_stream_info()
           if streaminfo != None:
               container = streaminfo.get_caps()
           else:
               self.check_for_elements()
           seekbool = info.get_seekable()
           clipduration=info.get_duration()
           audiostreamcounter=-1
           audiostreams=[]
           audiotags=[]
           audiochannels=[]
           samplerate=[]
           inputaudiocaps=[]
           markupaudioinfo=[]
           videowidth = None
           videoheight = None
           for i in info.get_stream_list():
               if isinstance(i, GstPbutils.DiscovererAudioInfo):
                   audiostreamcounter=audiostreamcounter+1
                   inputaudiocaps.append(i.get_caps())
                   audiostreams.append( \
                       GstPbutils.pb_utils_get_codec_description(inputaudiocaps[audiostreamcounter]))
                   audiotags.append(i.get_tags())
                   test=i.get_channels()
                   audiochannels.append(i.get_channels())
                   samplerate.append(i.get_sample_rate())
                   self.haveaudio=True
                   self.audiodata = { 'audiochannels' : audiochannels[audiostreamcounter], \
                       'samplerate' : samplerate[audiostreamcounter], 'audiotype' : inputaudiocaps[audiostreamcounter], \
                       'clipduration' : clipduration }
                   markupaudioinfo.append((''.join(('<small>', \
                       'Audio channels: ', str(audiochannels[audiostreamcounter]) ,'</small>'))))

                   self.containerchoice.set_active(-1) # set this here to ensure it happens even with quick audio-only
                   self.containerchoice.set_active(0)
               if self.haveaudio==False:
                   self.audioinformation.set_markup(''.join(('<small>', _("No Audio"), '</small>'))) 
                   self.audiocodec.set_markup(''.join(('<small>', "",'</small>')))

               if isinstance(i, GstPbutils.DiscovererVideoInfo):
                   self.inputvideocaps=i.get_caps()
                   videotags=i.get_tags()
                   interlacedbool = i.is_interlaced()
                   if interlacedbool is True:
                       self.interlaced=True
                   self.havevideo=True
                   self.populate_menu_choices() # run this to ensure video menu gets filled
                   videoheight=i.get_height()
                   videowidth=i.get_width()
                   videodenom=i.get_framerate_denom()
                   videonum=i.get_framerate_num()

                   self.videodata = { 'videowidth' : videowidth, 'videoheight' : videoheight, 'videotype' : self.inputvideocaps,
                              'fratenum' : videonum, 'frateden' :  videodenom }
                   self.presetchoice.set_sensitive(True)
                   self.videorows[0].set_sensitive(True)
                   self.rotationchoice.set_sensitive(True)
               if self.havevideo==False:
                   self.videoinformation.set_markup(''.join(('<small>', _("No Video"), '</small>')))
                   self.videocodec.set_markup(''.join(('<small>', "",
                                      '</small>')))
                   self.presetchoice.set_sensitive(False)
                   self.videorows[0].set_sensitive(False)
                   self.rotationchoice.set_sensitive(False)
               self.discover_done=True

               if self.waiting_for_signal == True:
                   if self.containertoggle == True:
                       if self.codeccontainer != False:
                           self.check_for_passthrough(self.codeccontainer)
                   else:
                       # self.check_for_elements()
                       if self.missingtoggle==False:
                           self._start_transcoding()
               if self.codeccontainer != False:
                   self.check_for_passthrough(self.codeccontainer)
       # set markup

           if audiostreamcounter >= 0:
               self.audioinformation.set_markup(''.join(('<small>', \
                       'Audio channels: ', str(audiochannels[0]), '</small>')))
               self.audiocodec.set_markup(''.join(('<small>','Audio codec: ', \
                       str(GstPbutils.pb_utils_get_codec_description(inputaudiocaps[audiostreamcounter])), \
                       '</small>')))
           if videowidth and videoheight:
               self.videoinformation.set_markup(''.join(('<small>', 'Video width&#47;height: ', str(videowidth),
                                            "x", str(videoheight), '</small>')))
               self.videocodec.set_markup(''.join(('<small>', 'Video codec: ',
                                       str(GstPbutils.pb_utils_get_codec_description   (self.inputvideocaps)),
                                      '</small>')))
       else:
          print("hoped for a great discovery; got an error")
          print(result)
          print(error)

   def discover(self, path):
       self.discovered.discover_uri_async("file://"+path)

   def mediacheck(self, FileChosen):
       uri = urlparse (FileChosen)
       path = uri.path
       self.discover(path)
   
   def check_for_passthrough(self, containerchoice):
       videointersect = Gst.Caps.new_empty()
       audiointersect = Gst.Caps.new_empty()
       if containerchoice != False: # or self.usingpreset==False): <- Need to figure out what this was about
           container = codecfinder.containermap[containerchoice]
           containerelement = codecfinder.get_muxer_element(container)
           if containerelement == False:
               self.containertoggle = True
           else:
               factory = Gst.Registry.get().lookup_feature(containerelement)
               for x in factory.get_static_pad_templates():
                   if (x.direction == Gst.PadDirection.SINK):
                       sourcecaps = x.get_caps()
                       if self.havevideo == True:
                           if videointersect.is_empty():
                              videointersect = sourcecaps.intersect(self.videodata['videotype'])
                              self.vsourcecaps = videointersect
                       if self.haveaudio == True:
                           if audiointersect.is_empty():
                               audiointersect = sourcecaps.intersect(self.audiodata['audiotype'])
                           #else:
                               self.asourcecaps = audiointersect
               if videointersect.is_empty():
                   self.videopass=False
               else:
                   self.videopass=True
               if audiointersect.is_empty():
                   self.audiopass=False
               else:
                   self.audiopass=True
               

   # define the behaviour of the other buttons
   def on_FileChooser_file_set(self, widget):
       self.filename = self.builder.get_object ("FileChooser").get_filename()
       self.audiodata = {}
       if self.filename is not None: 
           self.haveaudio=False #make sure to reset these for each file
           self.havevideo=False #
           self.mediacheck(self.filename)
           self.ProgressBar.set_fraction(0.0)
           self.ProgressBar.set_text(_("Transcoding Progress"))
           if (self.havevideo==False and self.nocontaineroptiontoggle==False):
               self.nocontaineroptiontoggle=True
           else:
               self.presetchoice.set_sensitive(True)
               self.presetchoice.set_active(0)

               # removing bogus text from supported_containers
               if self.bogus==0:
                   self.containerchoice.remove(12)
                   self.bogus=1
               self.nocontaineroptiontoggle=False
           self.containerchoice.set_sensitive(True)

   def _start_transcoding(self): 
       filechoice = self.builder.get_object ("FileChooser").get_uri()
       self.filename = self.builder.get_object ("FileChooser").get_filename()
       if (self.havevideo and (self.VideoCodec != "novid")):
           vheight = self.videodata['videoheight']
           vwidth = self.videodata['videowidth']
           ratenum = self.videodata['fratenum']
           ratednom = self.videodata['frateden']
           if self.videopasstoggle == False:
               videocodec = self.VideoCodec
           else:
               videocodec = self.vsourcecaps
           self.outputdirectory=self.videodirectory
       else:
           self.outputdirectory=self.audiodirectory
           videocodec=False
           vheight=False
           vwidth=False
           ratenum=False
           ratednom=False
       if self.haveaudio:
           achannels = self.audiodata['audiochannels']
           if self.audiopasstoggle == False:
               audiocodec = self.AudioCodec
           else:
               audiocodec = self.asourcecaps
       else:
           audiocodec=False
           achannels=False

       self._transcoder = transcoder_engine.Transcoder(filechoice, self.filename,
                        self.outputdirectory, self.codeccontainer, audiocodec, 
                        videocodec, self.devicename, 
                        vheight, vwidth, ratenum, ratednom, achannels, 
                        self.multipass, self.passcounter, self.outputfilename,
                        self.timestamp, self.rotationvalue, self.audiopasstoggle, 
                        self.videopasstoggle, self.interlaced, self.inputvideocaps)
        

       self._transcoder.connect("ready-for-querying", self.ProgressBarUpdate)
       self._transcoder.connect("got-eos", self._on_eos)
       self._transcoder.connect("missing-plugin", self.install_plugin)
       return True

   def install_plugin(self, signal):
       # print("install plugin called")
       plugin=GstPbutils.missing_plugin_message_get_installer_detail(self._transcoder.missingplugin)
       missing = []
       missing.append(plugin)
       self.context = GstPbutils.InstallPluginsContext ()
       self.context.set_xid(self.get_window().get_xid())
       GstPbutils.install_plugins_async (missing, self.context, \
                       self.donemessage, "NULL")
       self.on_cancelbutton_clicked("click")

   def donemessage(self, donemessage, null):
       # print("donemessage is called")
       if donemessage == GstPbutils.InstallPluginsReturn.SUCCESS:
           if Gst.update_registry():
               print("Plugin registry updated, trying again")
           else:
               print("Gstreamer registry update failed")
           if self.containertoggle == False:
               # FIXME - might want some test here to check plugins needed are
               # actually installed
               # but it is a rather narrow corner case when it fails
               self._start_transcoding()
       elif donemessage == GstPbutils.InstallPluginsReturn.PARTIAL_SUCCESS:
           print("Plugin install not fully succesfull")
       elif donemessage == GstPbutils.InstallPluginsReturn.INVALID:
           context_id = self.StatusBar.get_context_id("EOS")
           self.StatusBar.push(context_id, \
                   _("Got an invalid response from codec installer, can not install missing codec."))
       elif donemessage == GstPbutils.InstallPluginsReturn.HELPER_MISSING:
           context_id = self.StatusBar.get_context_id("EOS")
           self.StatusBar.push(context_id, \
                   _("No Codec installer helper application available."))
       elif donemessage == GstPbutils.InstallPluginsReturn.NOT_FOUND:
           context_id = self.StatusBar.get_context_id("EOS")
           self.StatusBar.push(context_id, \
                   _("Plugins not found, choose different codecs."))
           self.FileChooser.set_sensitive(True)
           self.containerchoice.set_sensitive(True)
           self.CodecBox.set_sensitive(True)
           self.cancelbutton.set_sensitive(False)
           self.transcodebutton.set_sensitive(True)
       elif donemessage == GstPbutils.InstallPluginsReturn.USER_ABORT:
           self._cancel_encoding = \
               transcoder_engine.Transcoder.Pipeline(self._transcoder,"null")
           context_id = self.StatusBar.get_context_id("EOS")
           self.StatusBar.push(context_id, _("Codec installation aborted."))
           self.FileChooser.set_sensitive(True)
           self.containerchoice.set_sensitive(True)
           self.CodecBox.set_sensitive(True)
           self.cancelbutton.set_sensitive(False)
           self.transcodebutton.set_sensitive(True)
       else:
           context_id = self.StatusBar.get_context_id("EOS")
           self.StatusBar.push(context_id, _("Missing plugin installation failed."))


   def check_for_elements(self):
       # print("checking for elements")
       # this function checks for missing plugins using pbutils
       if self.codeccontainer==False:
           containerstatus=True
           videostatus=True
       else:
           containerchoice = self.builder.get_object ("containerchoice").get_active_text ()
           if containerchoice != None:
               containerstatus = codecfinder.get_muxer_element(codecfinder.containermap[containerchoice])
               if self.havevideo:
                   if self.videopasstoggle != True:
                       if self.VideoCodec == "novid":
                           videostatus=True
                       else:
                           videostatus = codecfinder.get_video_encoder_element(self.VideoCodec)
                   else:
                       videostatus=True
       if self.haveaudio:
           if self.audiopasstoggle != True:
               audiostatus = codecfinder.get_audio_encoder_element(self.AudioCodec)
           else:
               audiostatus=True
       else:
           audiostatus=True
       if self.havevideo == False: # this flags help check if input is audio-only file
           videostatus=True
       if not containerstatus or not videostatus or not audiostatus:
           self.missingtoggle=True
           fail_info = []
           if self.containertoggle==True:
               audiostatus=True
               videostatus=True
           if containerstatus == False:
               fail_info.append(Gst.caps_from_string(codecfinder.containermap[containerchoice]))
           if audiostatus == False:
               fail_info.append(self.AudioCodec)
           if videostatus == False:
               fail_info.append(self.VideoCodec)
           missing = []
           for x in fail_info:
               missing.append(GstPbutils.missing_encoder_installer_detail_new(x))
           context = GstPbutils.InstallPluginsContext ()
           context.set_xid(self.get_window().get_xid())
           GstPbutils.install_plugins_async (missing, context, \
                       self.donemessage, "NULL")

   # The transcodebutton is the one that calls the Transcoder class and thus
   # starts the transcoding
   def on_transcodebutton_clicked(self, widget):
       self.containertoggle = False
       self.FileChooser.set_sensitive(False)
       self.containerchoice.set_sensitive(False)
       self.presetchoice.set_sensitive(False)
       self.CodecBox.set_sensitive(False)
       self.transcodebutton.set_sensitive(False)
       self.rotationchoice.set_sensitive(False)
       self.cancelbutton.set_sensitive(True)
       self.ProgressBar.set_fraction(0.0)
       # create a variable with a timestamp code
       timeget = datetime.datetime.now()
       self.timestamp = str(timeget.strftime("-%H%M%S-%d%m%Y"))
       # Remove suffix from inbound filename so we can reuse it together with suffix to create outbound filename
       self.nosuffix = os.path.splitext(os.path.basename(self.filename))[0]
       # pick output suffix
       container = self.builder.get_object("containerchoice").get_active_text()
       if self.codeccontainer==False: # deal with container less formats
           self.ContainerFormatSuffix = codecfinder.nocontainersuffixmap[Gst.Caps.to_string(self.AudioCodec)]
       else:
           if self.havevideo == False:
               self.ContainerFormatSuffix = codecfinder.audiosuffixmap[container]
           else:
               self.ContainerFormatSuffix = codecfinder.csuffixmap[container]
       self.outputfilename = str(self.nosuffix+self.timestamp+self.ContainerFormatSuffix)
       context_id = self.StatusBar.get_context_id("EOS")
       self.StatusBar.push(context_id, (_("Writing %(filename)s") % {'filename': self.outputfilename}))
       if self.multipass != 0:
           self.passcounter=int(1)
           self.StatusBar.push(context_id, (_("Pass %(count)d Progress") % {'count': self.passcounter}))
       if self.haveaudio:
           if "samplerate" in self.audiodata:
               # self.check_for_elements()
               if self.missingtoggle==False:
                   self._start_transcoding()
           else:
               self.waiting_for_signal="True"
       elif self.havevideo:
           if "videoheight" in self.videodata:
               # self.check_for_elements()
               if self.missingtoggle==False:
                   self._start_transcoding()
           else:
               self.waiting_for_signal="True"

   def on_cancelbutton_clicked(self, widget):
       self.FileChooser.set_sensitive(True)
       self.containerchoice.set_sensitive(True)
       self.CodecBox.set_sensitive(True)
       self.presetchoice.set_sensitive(True)
       self.rotationchoice.set_sensitive(True)
       self.presetchoice.set_active(0)
       self.cancelbutton.set_sensitive(False)
       self.transcodebutton.set_sensitive(True)
       self._cancel_encoding = \
               transcoder_engine.Transcoder.Pipeline(self._transcoder,"null")
       self.ProgressBar.set_fraction(0.0)
       self.ProgressBar.set_text(_("Transcoding Progress"))
       context_id = self.StatusBar.get_context_id("EOS")
       self.StatusBar.pop(context_id)

   def populate_menu_choices(self):
       # self.audiocodecs - contains list of whats in self.audiorows
       # self.videocodecs - contains listof whats in self.videorows
       # audio_codecs, video_codecs - temporary lists

       # clean up stuff from previous run
       self.houseclean=True # set this to avoid triggering events when cleaning out menus
       for c in self.audiocodecs: # 
           self.audiorows[0].remove(0)
       self.audiocodecs =[]
       if self.havevideo==True:
           if self.codeccontainer != False:
               for c in self.videocodecs:
                   self.videorows[0].remove(0)
               self.videocodecs=[]
       self.houseclean=False
      # end of housecleaning

       # start filling audio
       if self.haveaudio==True:
           if self.usingpreset==True: # First fill menu based on presetvalue
               testforempty = self.presetaudiocodec.to_string()
               if testforempty != "EMPTY": 
                   self.audiorows[0].append_text(str(GstPbutils.pb_utils_get_codec_description(self.presetaudiocodec)))
                   self.audiorows[0].set_active(0)
                   self.audiocodecs.append(self.presetaudiocodec)
           elif self.codeccontainer==False: # special setup for container less case, looks ugly, but good enough for now
               self.audiorows[0].append_text(str(GstPbutils.pb_utils_get_codec_description(Gst.caps_from_string("audio/mpeg, mpegversion=(int)1, layer=(int)3"))))
               self.audiorows[0].append_text(str(GstPbutils.pb_utils_get_codec_description(Gst.caps_from_string("audio/mpeg, mpegversion=4, stream-format=adts"))))
               self.audiorows[0].append_text(str(GstPbutils.pb_utils_get_codec_description(Gst.caps_from_string("audio/x-flac"))))
               self.audiocodecs.append(Gst.caps_from_string("audio/mpeg, mpegversion=(int)1, layer=(int)3"))
               self.audiocodecs.append(Gst.caps_from_string("audio/mpeg, mpegversion=4, stream-format=adts"))
               self.audiocodecs.append(Gst.caps_from_string("audio/x-flac"))
               self.audiorows[0].set_active(0)
               self.audiorows[0].set_sensitive(True)
           else:
               audio_codecs = []
               audio_codecs = supported_audio_container_map[self.codeccontainer]
               for c in audio_codecs:
                   self.audiocodecs.append(Gst.caps_from_string(codecfinder.codecmap[c]))
               for c in self.audiocodecs: # Use codec descriptions from GStreamer
                   self.audiorows[0].append_text(GstPbutils.pb_utils_get_codec_description(c))
           self.audiorows[0].set_sensitive(True)
           self.audiorows[0].set_active(0)
       else:
               self.audiorows[0].set_sensitive(False)

       # fill in with video
       if self.havevideo==True:
           if self.codeccontainer != False:
               if self.usingpreset==True:
                   testforempty = self.presetvideocodec.to_string()
                   if testforempty != "EMPTY":
                       self.videorows[0].append_text(str(GstPbutils.pb_utils_get_codec_description(self.presetvideocodec)))
                       self.videorows[0].set_active(0)
                       self.videocodecs.append(self.presetvideocodec)
               else:
                   video_codecs=[]
                   video_codecs = supported_video_container_map[self.codeccontainer]
                   self.rotationchoice.set_sensitive(True)
                   for c in video_codecs:
                       self.videocodecs.append(Gst.caps_from_string(codecfinder.codecmap[c]))
                   for c in self.videocodecs: # Use descriptions from GStreamer
                       self.videorows[0].append_text(GstPbutils.pb_utils_get_codec_description(c))
                   self.videorows[0].set_sensitive(True)
                   self.videorows[0].set_active(0)

                   #add a 'No Video option'
                   self.videorows[0].append_text(_("No Video"))
                   self.videocodecs.append("novid")
                   self.videonovideomenuno=(len(self.videocodecs))-1
                      
                   # add the Passthrough option 
                   if self.videopass==True:
                       self.videorows[0].append_text(_("Video passthrough"))
                       self.videocodecs.append("pass")
                       self.videopassmenuno=(len(self.videocodecs))-1
                   
                   if self.audiopass==True:
                       self.audiorows[0].append_text(_("Audio passthrough"))
                       self.audiocodecs.append("pass")
                       self.audiopassmenuno=(len(self.audiocodecs))-1

   def on_containerchoice_changed(self, widget):
       self.CodecBox.set_sensitive(True)
       self.ProgressBar.set_fraction(0.0)
       self.ProgressBar.set_text(_("Transcoding Progress"))
       if self.builder.get_object("containerchoice").get_active() == self.nocontainernumber:
               self.codeccontainer = False
               self.videorows[0].set_active(self.videonovideomenuno)
               self.videorows[0].set_sensitive(False)
       else:
           if self.builder.get_object("containerchoice").get_active()!= -1:
               self.codeccontainer = self.builder.get_object ("containerchoice").get_active_text()
               self.check_for_elements()
       if self.discover_done == True:
           self.check_for_passthrough(self.codeccontainer)
           self.populate_menu_choices()
           self.transcodebutton.set_sensitive(True)


   def on_presetchoice_changed(self, widget):
       presetchoice = self.builder.get_object ("presetchoice").get_active()
       self.ProgressBar.set_fraction(0.0)
       if presetchoice == 0:
           self.usingpreset=False
           self.devicename = "nopreset"
           self.containerchoice.set_sensitive(True)
           self.containerchoice.set_active(0)
           self.start_time = False
           self.multipass = 0
           self.passcounter = 0
           self.rotationchoice.set_sensitive(True)
           if self.builder.get_object("containerchoice").get_active():
               self.populate_menu_choices()
               self.CodecBox.set_sensitive(True)
               self.transcodebutton.set_sensitive(True)
       else:
           self.usingpreset=True
           self.ProgressBar.set_fraction(0.0)
           if presetchoice != None:
               self.devicename= self.presetchoices[presetchoice-1]
               self.provide_presets(self.devicename)
               self.containerchoice.set_sensitive(False)
               self.CodecBox.set_sensitive(False)
               self.rotationchoice.set_sensitive(False)
           else:
               if self.builder.get_object("containerchoice").get_active_text():
                   self.transcodebutton.set_sensitive(True)

   def on_rotationchoice_changed(self, widget):
       self.rotationvalue = self.rotationchoice.get_active()

   def on_audiocodec_changed(self, widget):
       self.audiopasstoggle=False
       if (self.houseclean == False and self.usingpreset==False):
           self.AudioCodec = self.audiocodecs[self.audiorows[0].get_active()]
           if self.codeccontainer != False:
               if self.audiorows[0].get_active() ==  self.audiopassmenuno:
                   self.audiopasstoggle=True
       elif self.usingpreset==True:
           self.AudioCodec = self.presetaudiocodec    

   def on_videocodec_changed(self, widget):
       self.videopasstoggle=False
       if (self.houseclean == False and self.usingpreset==False):
           if self.codeccontainer != False:
               self.VideoCodec = self.videocodecs[self.videorows[0].get_active()]
           else:
                   self.VideoCodec = "novid"
                   self.rotationchoice.set_sensitive(False)
           if self.videorows[0].get_active() == self.videopassmenuno:
               self.videopasstoggle=True
       elif self.usingpreset==True:
           self.VideoCodec = self.presetvideocodec


# Setup i18n support
import locale
from gettext import gettext as _
import gettext
import signal
  
#Set up i18n
gettext.bindtextdomain("transmageddon","../../share/locale")
gettext.textdomain("transmageddon")

if __name__ == "__main__":
    app = Transmageddon()
    # FIXME: Get rid of the following line which has the only purpose of
    # working around Ctrl+C not exiting Gtk applications from bug 622084.
    # https://bugzilla.gnome.org/show_bug.cgi?id=622084
    signal.signal(signal.SIGINT, signal.SIG_DFL)
    exit_status = app.run(sys.argv)
    sys.exit(exit_status)