def transcodeVideos(self):
logging.info("Starting VideoTranscoder thread")
while not self.must_die_event.wait(2):
# Bug de python <2.7: la methode wait() de threadin.Event renvoie
# tout le temps None. On teste donc le flag pour savoir si il faut
# quitter.
if self.must_die_event.isSet():
return
try:
video = self.transcode_queue.get_nowait()
try:
os.stat(video.local_filename)
except OSError, e:
logging.warning("%s n'existe pas !" % video.local_filename)
continue
if self.transcodeOneVideo(video):
self.transcoded_files.add(video)
# La video contient le nom unique du Pipeline dont elle est issue.
# En recuperant son Pipeline, on recupere sa file d'attente de podcast
pipeline = PipelineFactory.getPipelineByName(video.pipeline_name)
if pipeline is None:
logging.warning("Video sans Pipeline valide !")
continue
pipeline.podcaster_queue.put(video)
elif self.must_die_event.isSet():
return
except Queue.Empty, e:
if self.must_die_event.isSet():
return
def status(self):
"""Renvoie une chaine de caractere donnant le statut des pipelines.
Cette methode est appelee par le pipeline Jabber pour repondre a la commande
"status".
"""
result = ["VideoTranscoder"]
result.append(self.transcode_thread.status())
result.append("\n")
for (name, pipeline) in PipelineFactory.pipelines():
result.append(name)
result.append(pipeline.status())
return "\n".join(result)
def startPipelines(self):
"""Demarre tous les pipelines.
"""
self.rss_feedserver_thread = self.rss_feedserver.start()
self.threads.append(self.rss_feedserver_thread)
for pipeline_name in self.pipeline_specs:
PipelineFactory.getPipelineByName(pipeline_name).start()
# On ne peut regarder les videos transcodees qu'apres car il faut les
# orienter vers le bon pipeline
for video in self.transcoded_files:
pipeline = PipelineFactory.getPipelineByName(video.pipeline_name)
if pipeline is not None:
pipeline.podcaster_queue.put(video)
else:
logging.warning("Impossible de trouver le pipeline (%s) de %s"
% (video.pipeline_name, str(video)))
# Si il y a un Pipeline Jabber, on lui passe le controlleur pour qu'il
# puisse repondre a la commande "status".
try:
pipeline = PipelineFactory.getPipelineByName("gtalk_youtube")
pipeline.jabber_bot_thread.controller = self
except ValueError, e:
logging.info("Pas de Pipeline Jabber")
def createPipelines(self):
self.threads = []
logging.info("Demarrage des pipelines...")
# Recupere les infos sur ce qui a deja ete fait depuis le disque dur
self.downloaded_files = SynchronizedSet('downloaded_videos')
self.transcoded_files = SynchronizedSet('transcoded_videos')
if self.options.verbose:
# Affichage de ce qu'on a deja fait
print "Downloaded Videos:"
for video in self.downloaded_files:
print video
print "Transcoded Videos:"
for video in self.transcoded_files:
print video
# Serveur HTTP - un seul pour tous les pipelines
self.http_server = PodcastHttpServer(findSettings()["podcast_port"])
self.httpd_thread = self.http_server.start()
self.threads.append(self.httpd_thread)
# Transcodeur - un seul pour tous les pipelines
transcode_queue = Queue.Queue()
for video in self.downloaded_files:
if not video in self.transcoded_files:
transcode_queue.put(video)
self.transcode_thread = VideoTranscoder(transcode_queue,
self.transcoded_files)
self.transcode_thread.start()
self.threads.append(self.transcode_thread)
self.rss_feedserver = RssFeedHttpServer(findSettings()["podcast_port"] + 1)
# Tous les pipelines
for pipeline_name in self.pipeline_specs:
logging.info("Pipeline " + pipeline_name)
pipeline = PipelineFactory.createPipeline(
pipeline_name, transcode_queue,
self.pipeline_specs[pipeline_name]["input_spec"],
self.pipeline_specs[pipeline_name]["podcast_spec"],
self.downloaded_files, self.transcoded_files)
pipeline_threads = pipeline.createThreads()
self.threads += pipeline_threads
# On cree enfin le thread sentinelle, qui va permettre de quitter
# proprement en cas d'erreur.
self.sentinel_thread = SentinelThread(self.threads)
def do_GET(self):
# Le header "Host"
host = self.headers["Host"]
if ":" in host:
host = host[:host.rindex(':')]
# On nettoie un peu le "path"
path = self.path
path = path.split('?',1)[0]
path = path.split('#',1)[0]
path = urllib.unquote(path)
# Ensuite, on en prend la derniere partie, qui doit correspondre a un nom
# de Pipeline (sans le ".xml")
pipeline_name = path.split('/')[-1]
pipeline_name = pipeline_name[:pipeline_name.rindex(".")]
pipeline = None
from user_config import PipelineFactory
try:
pipeline = PipelineFactory.getPipelineByName(pipeline_name)
logging.info(pipeline_name)
except ValueError, e:
logging.warning("Pipeline invalide : " + pipeline_name)
self.send_error(404, "File Not Found")
return
