def _load_ass(self):
if self.ontology["kind"] == "ass":
content = self._read()
if content:
caption = Caption(self.env)
content = content.splitlines()
index = 0
formation = None
for line in content:
if line == u"[Events]":
match = self.env.expression["ass formation line"].search(content[index + 1])
if match is not None:
formation = match.group(1).strip().replace(u" ", u"").split(u",")
break
index += 1
if formation is not None:
start = formation.index("Start")
stop = formation.index("End")
text = formation.index("Text")
for line in content:
match = self.env.expression["ass subtitle line"].search(line)
if match is not None:
line = match.group(1).strip().split(",")
slide = Slide()
slide.begin.timecode = line[start]
slide.end.timecode = line[stop]
subtitle_text = u",".join(line[text:])
subtitle_text = self.env.expression["ass event command"].sub(
self.env.constant["empty string"], subtitle_text
)
subtitle_text = subtitle_text.replace(u"\n", ur"\N")
subtitle_text = self.env.expression["ass condense line breaks"].sub(ur"\N", subtitle_text)
subtitle_text = subtitle_text.split(ur"\N")
for line in subtitle_text:
slide.add(line)
caption.add(slide)
caption.normalize()
if caption.valid:
mtype = self.env.enumeration["mediainfo stream type"].find("text")
o = Ontology(self.env, mtype.node["namespace"])
o["stream type"] = u"text"
o["format"] = u"ASS"
o["language"] = self.ontology["language"]
o["content"] = caption.node
self._execution["crawl"]["stream"].append(o)
def _load_srt(self):
if self.ontology["kind"] == "srt":
content = self._read()
if content:
caption = Caption(self.env)
content = content.splitlines()
current_slide_pointer = None
next_slide_pointer = None
current = None
next = None
last_line = len(content) - 1
for index in range(len(content)):
if index == last_line and current_slide_pointer is not None:
# This is the last line
next_slide_pointer = index + 1
match = self.env.expression["srt time line"].search(content[index])
if match is not None and content[index - 1].strip().isdigit():
next = Slide()
next.begin.timecode = match.group(1)
next.end.timecode = match.group(2)
if current_slide_pointer is not None:
next_slide_pointer = index - 1
else:
# first block
current_slide_pointer = index - 1
current = next
next = None
if next_slide_pointer is not None:
for line in content[current_slide_pointer + 2 : next_slide_pointer]:
current.add(line)
caption.add(current)
current_slide_pointer = next_slide_pointer
next_slide_pointer = None
current = next
next = None
caption.normalize()
if caption.valid:
mtype = self.env.enumeration["mediainfo stream type"].find("text")
o = Ontology(self.env, mtype.node["namespace"])
o["stream type"] = u"text"
o["format"] = u"UTF-8"
o["language"] = self.ontology["language"]
o["content"] = caption.node
self._execution["crawl"]["stream"].append(o)
def caption(self):
if self._caption is None:
for stream in self.stream:
if stream['stream kind'] == 'caption' and 'content' in stream:
self._caption_track = stream
self._caption = Caption.from_node(self.env, stream['content'])
break
if self._caption is None:
self._caption = Caption(self.env)
return self._caption
