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ceskatelevize: Closed captions support

This commit is contained in:
Ondřej Caletka 2015-01-02 17:12:20 +01:00
parent 324b2c78fa
commit c067545c17

View File

@ -3,7 +3,7 @@ from __future__ import unicode_literals
import re import re
from .common import InfoExtractor from .subtitles import SubtitlesInfoExtractor
from ..compat import ( from ..compat import (
compat_urllib_request, compat_urllib_request,
compat_urllib_parse, compat_urllib_parse,
@ -12,10 +12,11 @@ from ..compat import (
from ..utils import ( from ..utils import (
ExtractorError, ExtractorError,
float_or_none, float_or_none,
HEADRequest,
) )
class CeskaTelevizeIE(InfoExtractor): class CeskaTelevizeIE(SubtitlesInfoExtractor):
_VALID_URL = r'https?://www\.ceskatelevize\.cz/(porady|ivysilani)/(.+/)?(?P<id>[^?#]+)' _VALID_URL = r'https?://www\.ceskatelevize\.cz/(porady|ivysilani)/(.+/)?(?P<id>[^?#]+)'
_TESTS = [ _TESTS = [
@ -104,6 +105,15 @@ class CeskaTelevizeIE(InfoExtractor):
duration = float_or_none(item.get('duration')) duration = float_or_none(item.get('duration'))
thumbnail = item.get('previewImageUrl') thumbnail = item.get('previewImageUrl')
# subtitles
subtitles = self.extract_subtitles(video_id, webpage)
if self._downloader.params.get('listsubtitles', False):
self._list_available_subtitles(video_id, webpage)
return
subtitles = self._fix_subtitles(self.extract_subtitles(video_id, webpage))
return { return {
'id': episode_id, 'id': episode_id,
'title': title, 'title': title,
@ -111,4 +121,45 @@ class CeskaTelevizeIE(InfoExtractor):
'thumbnail': thumbnail, 'thumbnail': thumbnail,
'duration': duration, 'duration': duration,
'formats': formats, 'formats': formats,
'subtitles': subtitles,
} }
def _fix_subtitles(self, subtitles):
""" Convert milisecond-based subtitles to SRT """
if subtitles is None:
return subtitles # subtitles not requested
def _msectotimecode(msec):
""" Helper utility to convert miliseconds to timecode """
components = []
for divider in [1000, 60, 60, 100]:
components.append(msec % divider)
msec //= divider
return "{3:02}:{2:02}:{1:02},{0:03}".format(*components)
def _fix_subtitle(subtitle):
for line in subtitle.splitlines():
m = re.match(r"^ *([0-9]+); *([0-9]+) +([0-9]+) *$", line)
if m:
yield m.group(1)
start, stop = (_msectotimecode(int(t)) for t in m.groups()[1:])
yield "{} --> {}".format(start, stop)
else:
yield line
fixed_subtitles = {}
for k, v in subtitles.items():
fixed_subtitles[k] = "\r\n".join(_fix_subtitle(v))
return fixed_subtitles
def _get_available_subtitles(self, video_id, webpage):
video_id = video_id.partition('-')[0]
url = 'http://imgct.ceskatelevize.cz/cache/data/ivysilani/' \
'subtitles/{}/{}/sub.txt'.format(video_id[:3], video_id)
req = HEADRequest(url)
sub = self._request_webpage(
req, video_id,
note="Checking subtitles",
errnote="No subtitles found",
fatal=False)
return {'cs': url} if sub else {}