Work in progress. script available soon including gas bills.
Bordgais Energy Charts
Distributed FFMPEG using Google App Engine
I’ve developed a distributed ffmpeg google app engine solution.
The solution uses a combination of publish subscribe and redis queues for distributed communication.
https://github.com/dmzoneill/appengine-ffmpeg
Its composed of 2 services which scale horizontally (default and worker).
Coordinator (default service and human interface)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 | #!/usr/bin/python from flask import Flask import os import sys import glob import string import random import redis import logging from gcloud import storage, pubsub from google.cloud import logging PROJECT_ID = 'transcode-159215' TOPIC = 'projects/{}/topics/message'.format(PROJECT_ID) logclient = logging.Client() logger = logclient.logger( "ffmpeg-pool" ) app = Flask(__name__) app.config[ "SECRET_KEY" ] = "test" app.debug = True def publish( msg ): pubsub_client = pubsub.Client( PROJECT_ID ) topic = pubsub_client.topic( "ffmpeg-pool" ) if not topic.exists(): topic.create() topic.publish( msg ) @app.route( "/readlog" ) def readLog(): msg = "" try: for entry in logger.list_entries(): msg = msg + entry.payload + "<br>" logger.delete() except: msg = "" return msg @app.route( "/cleantopic" ) def cleanTopics(): client = pubsub.Client( PROJECT_ID ) topic = client.topic( "ffmpeg-pool" ) topic.delete() topic.create() return "Cleaned topic" @app.route( "/split" ) def split(): publish( "split" ) return "File queued for spliting" @app.route( "/transcode" ) def transcode(): publish( "transcode" ) return "Job queued for transcoding" @app.route( "/combine" ) def combine(): publish( "combine" ) return "Job queued for combining" @app.route( "/" ) def home(): return "<a href='/split'>/split</a> | <a href='/transcode'>/transcode</a> | <a href='/combine'>/combine</a> | <a href='/cleantopic'>/cleantopic</a> | <a href='/readlog'>/readlog</a>" if __name__ == '__main__': app.run(host='127.0.0.1', port=8080, debug=True) |
Worker
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 | import os from gcloud import storage, pubsub, logging import sys import socket import time import redis import glob from google.cloud import logging logclient = logging.Client() logger = logclient.logger( "ffmpeg-pool" ) PROJECT_ID = 'transcode-159215' TOPIC = 'projects/{}/topics/message'.format(PROJECT_ID) psclient = None pstopic = None pssub = None class RedisQueue(object): def __init__( self, name, namespace = 'queue' ): self.__db = redis.Redis( host = "redis-11670.c10.us-east-1-4.ec2.cloud.redislabs.com", port=11670 ) self.key = '%s:%s' %(namespace, name) def qsize( self ): return self.__db.llen( self.key ) def empty( self ): return self.qsize() == 0 def put( self, item ): self.__db.rpush( self.key, item ) def get( self, block=True, timeout=None ): if block: item = self.__db.blpop( self.key, timeout=timeout ) else: item = self.__db.lpop( self.key ) if item: item = item[1] return item def get_nowait( self ): return self.get( False ) def download( rfile ): client = storage.Client( PROJECT_ID ) bucket = client.bucket( PROJECT_ID + ".appspot.com" ) blob = bucket.blob( rfile ) with open( "/tmp/" + rfile, 'w' ) as f: blob.download_to_file( f ) logger.log_text( "Worker: Downloaded: /tmp/" + rfile ) def upload( rfile ): client = storage.Client( PROJECT_ID ) bucket = client.bucket( PROJECT_ID + ".appspot.com" ) blob = bucket.blob( rfile ) blob = bucket.blob( rfile ) blob.upload_from_file( open( "/tmp/" + rfile ) ) logger.log_text( "Worker: Uploaded /tmp/" + rfile ) def transcode( rfile ): download( rfile ) os.system( "rm /tmp/output*" ) ret = os.system( "ffmpeg -i /tmp/" + rfile + " -c:v libx265 -preset medium -crf 28 -c:a aac -b:a 128k -strict -2 /tmp/output-" + rfile + ".mkv" ) if ret: logger.log_text( "Worker: convert failed : " + rfile + " - " + str( ret ).encode( 'utf-8' ) ) return upload( "output-" + rfile + ".mkv" ) def split(): rqueue = RedisQueue( "test" ) download( "sample.mp4" ) os.system( "rm -f /tmp/chunk*" ) ret = os.system( "ffmpeg -i /tmp/sample.mp4 -map 0:a -map 0:v -codec copy -f segment -segment_time 10 -segment_format matroska -v error '/tmp/chunk-%03d.orig'" ) if ret: return "Failed" for rfile in glob.glob( "/tmp/chunk*" ): basename = os.path.basename( rfile ) upload( basename ) rqueue.put( basename ) def combine(): client = storage.Client( PROJECT_ID ) bucket = client.bucket( PROJECT_ID + ".appspot.com" ) blobs = bucket.list_blobs() os.system( "rm /tmp/*" ) names = [] for blob in blobs: if "output" in blob.name: names.append( blob.name.encode( 'utf-8' ) ) names.sort() with open( '/tmp/combine.lst', 'w' ) as f1: for name in names: f1.write( "file '/tmp/" + name + "'\n" ) download( name ) logger.log_text( "Worker: created combine list: /tmp/combine.lst" ) ret = os.system( "ffmpeg -f concat -safe 0 -i /tmp/combine.lst -c copy /tmp/combined.mkv" ) if ret: logger.log_text( "Worker: combine failed: /tmp/combine.mkv - " + str(ret).encode( 'utf-8' ) ) return upload( "combined.mkv" ) def subscribe(): global psclient, pstopic, pssub psclient = pubsub.Client( PROJECT_ID ) pstopic = psclient.topic( "ffmpeg-pool" ) if not pstopic.exists(): pstopic.create() pssub = pstopic.subscription( "ffmpeg-worker-" + socket.gethostname() ) if not pssub.exists(): pssub.create() def handlemessages(): global psclient, pstopic, pssub rqueue = RedisQueue( 'test' ) subscribe() while True: messages = pssub.pull( return_immediately=False, max_messages=110 ) for ack_id, message in messages: payload = message.data.encode( 'utf-8' ).replace( u"\u2018", "'" ).replace( u"\u2019", "'" ) logger.log_text( "Worker: Received message: " + payload ) try: pssub.acknowledge( [ack_id] ) if payload == "combine": combine() elif payload == "split": split() else: rfile = rqueue.get() basename = os.path.basename( rfile ) logger.log_text( "Worker: Redis popped: " + basename ) while basename != "None": transcode( basename ) rfile = rqueue.get() basename = os.path.basename( rfile ) logger.log_text( "Worker: Redis popped: " + rfile ) except Exception as e: logger.log_text( "Worker: Error: " + e.message ) sys.stderr.write( e.message ) subscribe() time.sleep( 1 ) if __name__ == '__main__': handlemessages() |
Android Digiweb App
For the first time in 5 years i banged out an android app, and here it is Digiweb broadband usage indicator.
It fetches your broadband usage and displays it as a widget on home screen. Fairly basic, but does the job nicely.
https://play.google.com/store/apps/details?id=ie.fio.dave.digiwebusage&hl=en
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PyGTK Threaded Nautilus Filebot
As a heavy user of Nautilus and Filebot, i decided to integrate the two.
Following on from my previous article on column providers for nautilus, here as the additional functionality for nautilus filebot integration.
Its a basic threaded extension; for the most basic and most used operation, “Strict file renaming”.
It solves 95% of my usage scenarios. To find out how to use the code, see the article https://fio.ie/python-column-provider-nautilus/
Github: https://github.com/dmzoneill/filebot-nautilus
The code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 | #!/usr/bin/python # dave@fio.ie import os import urllib import logging import re import threading import gi gi.require_version('Nautilus', '3.0') gi.require_version('Gtk', '3.0') from gi.repository import Nautilus, GObject, Gtk, Gdk, GLib, GdkPixbuf from hachoir_core.error import HachoirError from hachoir_core.stream import InputIOStream from hachoir_parser import guessParser from hachoir_metadata import extractMetadata from subprocess import Popen, PIPE GObject.threads_init() class VideoMetadataExtension(GObject.GObject, Nautilus.ColumnProvider, Nautilus.MenuProvider, Nautilus.InfoProvider): def __init__(self): logging.basicConfig(filename='/tmp/VideoMetadataExtension.log',level=logging.DEBUG) self.videomimes = [ 'video/x-msvideo', 'video/mpeg', 'video/x-ms-wmv', 'video/mp4', 'video/x-flv', 'video/x-matroska' ] self.win = None def get_columns(self): return ( Nautilus.Column(name="NautilusPython::video_width_columnn",attribute="video_width",label="Width",description="Video width"), Nautilus.Column(name="NautilusPython::video_height_columnn",attribute="video_height",label="Height",description="Video height"), ) def update_file_info_full(self, provider, handle, closure, file_info): filename = urllib.unquote(file_info.get_uri()[7:]) video_width = '' video_height = '' name_suggestion = '' file_info.add_string_attribute('video_width', video_width) file_info.add_string_attribute('video_height', video_height) file_info.add_string_attribute('name_suggestion', name_suggestion) if file_info.get_uri_scheme() != 'file': logging.debug("Skipped: " + filename) return Nautilus.OperationResult.COMPLETE for mime in self.videomimes: if file_info.is_mime_type(mime): GObject.idle_add(self.get_video_metadata, provider, handle, closure, file_info) logging.debug("in Progress: " + filename) return Nautilus.OperationResult.IN_PROGRESS logging.debug("Skipped: " + filename) return Nautilus.OperationResult.COMPLETE def get_file_items_full(self, provider, window, files): for mime in self.videomimes: for file in files: if file.get_uri_scheme() == 'file' and file.is_mime_type(mime): top_menuitem = Nautilus.MenuItem(name='NautilusPython::Filebot', label='Filebot', tip='Filebot renamer') submenu = Nautilus.Menu() top_menuitem.set_submenu(submenu) filebot_tvdb_menuitem = Nautilus.MenuItem(name='NautilusPython::FilebotRenameTVDB', label='Filebot TVDB', tip='Fetch names from TVDB') filebot_tvdb_menuitem.connect('activate', self.filebot_activate_cb, files, 'tvdb') submenu.append_item(filebot_tvdb_menuitem) filebot_moviedb_menuitem = Nautilus.MenuItem(name='NautilusPython::FilebotRenameMoviewDB', label='Filebot MovieDB', tip='Fetch names from MovieDB') filebot_moviedb_menuitem.connect('activate', self.filebot_activate_cb, files, 'moviedb') submenu.append_item(filebot_moviedb_menuitem) return top_menuitem, def filebot_activate_cb(self, menu, files, source): self.win = FileBotWindow(self, source, files) self.win.connect("delete-event", Gtk.main_quit) self.win.show_all() Gtk.main() def get_video_metadata(self, provider, handle, closure, file_info): video_width = '' video_height = '' name_suggestion = '' filename = urllib.unquote(file_info.get_uri()[7:]) filelike = open(filename, "rw+") try: filelike.seek(0) except (AttributeError, IOError): logging.debug("Unabled to read: " + filename) Nautilus.info_provider_update_complete_invoke(closure, provider, handle, Nautilus.OperationResult.FAILED) return False stream = InputIOStream(filelike, None, tags=[]) parser = guessParser(stream) if not parser: logging.debug("Unabled to determine parser: " + filename) Nautilus.info_provider_update_complete_invoke(closure, provider, handle, Nautilus.OperationResult.FAILED) return False try: metadata = extractMetadata(parser) except HachoirError: logging.debug("Unabled to extract metadata: " + filename) Nautilus.info_provider_update_complete_invoke(closure, provider, handle, Nautilus.OperationResult.FAILED) return False if metadata is None: logging.debug("Metadata None: " + filename) Nautilus.info_provider_update_complete_invoke(closure, provider, handle, Nautilus.OperationResult.FAILED) return False matchObj = re.search( r'Image width: (.*?) pixels', str(metadata), re.M|re.I) if matchObj: video_width = matchObj.group(1) matchObj = re.search( r'Image height: (.*?) pixels', str(metadata), re.M|re.I) if matchObj: video_height = matchObj.group(1) file_info.add_string_attribute('video_width', video_width) file_info.add_string_attribute('video_height', video_height) file_info.add_string_attribute('name_suggestion', name_suggestion) logging.debug("Completed: " + filename) file_info.invalidate_extension_info() Nautilus.info_provider_update_complete_invoke(closure, provider, handle, Nautilus.OperationResult.COMPLETE) return False class FileBotWindow(Gtk.Window): def __init__(self, videoMetadataExtension, source, files): self.todo = len(files) self.processing = 0 self.files = files self.source = source self.quit = False self.videoMetadataExtension = videoMetadataExtension Gtk.Window.__init__(self, title="Filebot operation") self.set_size_request(200, 100) self.set_border_width(10) self.set_type_hint(Gdk.WindowTypeHint.DIALOG) vbox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=6) self.add(vbox) self.working_label = Gtk.Label(label="Working") vbox.pack_start(self.working_label, True, True, 0) self.button = Gtk.Button(label="Cancel") self.button.connect("clicked", self.on_button_clicked) vbox.pack_start(self.button, True, True, 0) #GObject.timeout_add_seconds(1, self.process, files, source) self.update = threading.Thread(target=self.process) self.update.setDaemon(True) self.update.start() def process(self): for file in self.files: if file.get_uri_scheme() != 'file': continue filename = urllib.unquote(file.get_uri()[7:]) self.filebot_process(filename) def on_button_clicked(self, widget): self.quit = True self.close() def filebot_process(self, filename): if self.quit == True: return self.processing = self.processing + 1 text = "Processing (" + str(self.processing) + "/" + str(self.todo) + ") " + os.path.basename(filename) GObject.idle_add( self.working_label.set_text, text, priority=GObject.PRIORITY_DEFAULT ) p = Popen(['filebot', '-rename', filename,'--db', self.source], stdin=PIPE, stdout=PIPE, stderr=PIPE) output, err = p.communicate(b"input data that is passed to subprocess' stdin") rc = p.returncode if self.processing == self.todo: GObject.idle_add( self.close, priority=GObject.PRIORITY_DEFAULT ) |
Python column provider for Gnome Files (Nautilus)
Below is an example of a python column provider for nautilus.
Identifying poor quality video files 480p, 720p … is difficult in nautilus at a glance.
You need to open the file properties to view the video metadata.
While there are a number of extensions out there for EXIF etc, i decided to implement my own.
Originally i tried to use MediaInfo, but it was far too slow. This is what i ended up with.
To activate it, just login and logout, or kill nautilus and restart it.
Create target directory and file
1 2 3 4 | mkdir -vp ~/.local/share/nautilus-python/extensions touch ~/.local/share/nautilus-python/extensions/VideoMetaData.py |
Install python libraries
1 2 3 4 5 | pip install hachoir-metadata pip install hachoir-parser pip install hachoir-core |
Add this to ~/.local/share/nautilus-python/extensions/VideoMetaData.py
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 | #!/usr/bin/python # dave@fio.ie import os import urllib import logging import re import gi gi.require_version('Nautilus', '3.0') gi.require_version('Gtk', '3.0') from gi.repository import Nautilus, GObject, Gtk, Gdk, GdkPixbuf from hachoir_core.error import HachoirError from hachoir_core.stream import InputIOStream from hachoir_parser import guessParser from hachoir_metadata import extractMetadata class VideoMetadataExtension(GObject.GObject, Nautilus.ColumnProvider, Nautilus.MenuProvider, Nautilus.InfoProvider): def __init__(self): logging.basicConfig(filename='/tmp/VideoMetadataExtension.log',level=logging.DEBUG) pass def get_columns(self): return ( Nautilus.Column(name="NautilusPython::video_width_columnn",attribute="video_width",label="Width",description="Video width"), Nautilus.Column(name="NautilusPython::video_height_columnn",attribute="video_height",label="Height",description="Video height"), ) def update_file_info_full(self, provider, handle, closure, file_info): filename = urllib.unquote(file_info.get_uri()[7:]) video_width = '' video_height = '' name_suggestion = '' file_info.add_string_attribute('video_width', video_width) file_info.add_string_attribute('video_height', video_height) file_info.add_string_attribute('name_suggestion', name_suggestion) if file_info.get_uri_scheme() != 'file': logging.debug("Skipped: " + filename) return Nautilus.OperationResult.COMPLETE videomimes = [ 'video/x-msvideo', 'video/mpeg', 'video/x-ms-wmv', 'video/mp4', 'video/x-flv', 'video/x-matroska' ] for mime in videomimes: if file_info.is_mime_type(mime): GObject.idle_add(self.get_video_metadata, provider, handle, closure, file_info) logging.debug("in Progress: " + filename) return Nautilus.OperationResult.IN_PROGRESS logging.debug("Skipped: " + filename) return Nautilus.OperationResult.COMPLETE def get_video_metadata(self, provider, handle, closure, file_info): video_width = '' video_height = '' name_suggestion = '' filename = urllib.unquote(file_info.get_uri()[7:]) filelike = open(filename, "rw+") try: filelike.seek(0) except (AttributeError, IOError): logging.debug("Unabled to read: " + filename) Nautilus.info_provider_update_complete_invoke(closure, provider, handle, Nautilus.OperationResult.FAILED) return False stream = InputIOStream(filelike, None, tags=[]) parser = guessParser(stream) if not parser: logging.debug("Unabled to determine parser: " + filename) Nautilus.info_provider_update_complete_invoke(closure, provider, handle, Nautilus.OperationResult.FAILED) return False try: metadata = extractMetadata(parser) except HachoirError: logging.debug("Unabled to extract metadata: " + filename) Nautilus.info_provider_update_complete_invoke(closure, provider, handle, Nautilus.OperationResult.FAILED) return False if metadata is None: logging.debug("Metadata None: " + filename) Nautilus.info_provider_update_complete_invoke(closure, provider, handle, Nautilus.OperationResult.FAILED) return False matchObj = re.search( r'Image width: (.*?) pixels', str(metadata), re.M|re.I) if matchObj: video_width = matchObj.group(1) matchObj = re.search( r'Image height: (.*?) pixels', str(metadata), re.M|re.I) if matchObj: video_height = matchObj.group(1) file_info.add_string_attribute('video_width', video_width) file_info.add_string_attribute('video_height', video_height) file_info.add_string_attribute('name_suggestion', name_suggestion) logging.debug("Completed: " + filename) file_info.invalidate_extension_info() Nautilus.info_provider_update_complete_invoke(closure, provider, handle, Nautilus.OperationResult.COMPLETE) return False |