toutpt / captionstransformer Goto Github PK
View Code? Open in Web Editor NEWTransform captions from one to format to another
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captionstransformer's Issues
Library chokes on milliseconds/frames/ticks
It's neither unusual, nor beyond the specifications for ttml time attributes to include sub-second values (milliseconds, frames, ticks...), but captionstransformer fails to parse these.
Adobe Premiere (for example) includes sub-second values in its timecodes. And while it's not optimized for captions, it's in very common use, and not a wholly unusual source of ttml files.
Looking under the hood, I can see that ttml.py is only looking for '%H:%M:%S' causing the exception "ValueError unconverted data remains".
The %f macro was added to strftime/strptime in python 2.6 to handle these units.
You can change ttml.py so that if the conversion fails it will try to convert again, using the %f macro. Something like this:
def get_date(self, time_str):
try:
convertedTime = datetime.strptime(time_str, '%H:%M:%S')
except ValueError as v:
ulr = len(v.args[0].partition('unconverted data remains: ')[2])
if ulr:
convertedTime = datetime.strptime(time_str, "%H:%M:%S.%f")
else:
raise v
return convertedTime
It would be wise to add the %f macro to the Writer output as well
class Writer(core.Writer):
DOCUMENT_TPL = u"""<tt xml:lang="" xmlns="http://www.w3.org/ns/ttml"><body><div>%s</div></body></tt>"""
CAPTION_TPL = u"""<p begin="%(start)s" end="%(end)s">%(text)s</p>"""
def format_time(self, caption):
"""Return start and end time for the given format"""
#milliseconds now given (remove the [:-3] for microseconds)
return {'start': caption.start.strftime('%H:%M:%S.%f')[:-3],
'end': caption.end.strftime('%H:%M:%S.%f')[:-3]}
Missing LICENSE file
setup.py does say that the project is under GPL, but there's no version specified. Adding a dedicated LICENSE file would clarify things, and at the same time would satisfy inclusion requirement of the GPL.
Homepage link on pypi is wrong
https://pypi.org/project/captionstransformer/ points to https://github.com/toutpt/captionstranformer which is a 404 since it's missing a letter.
Also, it looks like there's only an outdated version of the project from 2012 there?
AttributeError: 'str' object has no attribute 'decode'
Hi,
I'm trying to use the captionstransformer as I've a need to convert SRT to TTML. I'm using the following example code but I'm getting the following error,
Error trace:
Traceback (most recent call last):
File "srt_to_ttml.py", line 15, in
captions = reader.read()
File "C:\Python34\lib\site-packages\captionstransformer-1.2.1-py3.4.egg\captionstransformer\core.py", line 13, in read
self.rawcontent = self.rawcontent.decode(self.encoding)
AttributeError: 'str' object has no attribute 'decode'
The following is the example code that I'm using,
from captionstransformer.srt import Reader
from captionstransformer.ttml import Writer
from io import StringIO
test_content = StringIO(u"""
1
00:00:03,490 --> 00:00:07,430
FISHER: All right. So, let's begin.
This session is: Going Social
00:00:07,430 --> 00:00:11,600
with the YouTube APIs. I am
Jeff Fisher,
""")
reader = Reader(test_content)
captions = reader.read()
len(captions) == 4
first = captions[0]
type(first.text) == unicode
first.text == u"Jellyfish at the Monterey Aquarium"
next get a writer
filelike = StringIO()
writer = Writer(filelike)
writer.set_captions(captions)
text = writer.captions_to_text()
text.startswith(u"""
""")
writer.write()
writer.close()
writer.write()
writer.close()
Could you please help me fix this error? I'm using ActiveState Python 3.4.1
Thanks,
Prem
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