def check_subtitle_cpl_duration(self, playlist, asset, folder):
""" Subtitle duration coherence with CPL. """
st_dict = self.get_subtitle_xml(asset, folder)
if not st_dict:
return
st_rate = self.get_subtitle_editrate(asset, st_dict)
subtitles = keys_by_name_dict(st_dict, 'Subtitle')
_, asset = asset
last_tc = 0
for st in subtitles[0]:
st_out = self.st_tc_frames(st['Subtitle@TimeOut'], st_rate)
if st_out > last_tc:
last_tc = st_out
cpl_rate = asset['EditRate']
cpl_dur = asset['Duration']
ratio_editrate = st_rate / cpl_rate
last_tc_st = last_tc / ratio_editrate
if last_tc_st > cpl_dur:
reel_cpl = get_reel_for_asset(playlist, asset['Id'])['Position']
raise CheckException(
"Subtitle exceed track duration. Subtitle {} - Track {} "
"- Reel {}".format(frame_to_tc(last_tc_st, cpl_rate),
frame_to_tc(cpl_dur, cpl_rate), reel_cpl))
def check_subtitle_cpl_first_tt_event(self, playlist, asset, folder):
""" First Timed Text Event of Composition TimeIn greater than 4s.
The composition's first Timed Text event's TimeIn attribute
should be greater than or equal to 4 seconds.
Reference:
SMPTE RDD 52:2020 7.2.4
"""
reel_cpl = get_reel_for_asset(playlist, asset[1]['Id'])['Position']
first_reel_of_st = get_first_reel_for_asset_type(playlist, 'Subtitle')
# We are probably checking a Caption track
if not first_reel_of_st:
return None
first_reel_of_st = first_reel_of_st['Position']
if not first_reel_of_st or reel_cpl != first_reel_of_st:
return
st_dict = self.st_util.get_subtitle_xml(asset, folder)
if not st_dict:
return
subtitles = keys_by_name_dict(st_dict, 'Subtitle')
if not subtitles:
return
st_editrate = self.st_util.get_subtitle_editrate(asset, st_dict)
first_tc = subtitles[0][0]['Subtitle@TimeIn']
first_tc_frames = self.st_util.st_tc_frames(first_tc, st_editrate)
if (first_tc_frames < 4 * st_editrate):
self.error("First Timed Text event of CPL happens "
"earlier than 4 seconds: {}".format(first_tc))
def check_subtitle_cpl_reel_number(self, playlist, asset, folder):
""" Subtitle reel number coherence with CPL. """
st_dict = self.get_subtitle_xml(asset, folder)
if not st_dict:
return
_, asset = asset
reel_no = self.get_subtitle_elem(st_dict, 'ReelNumber')
reel_cpl = get_reel_for_asset(playlist, asset['Id'])['Position']
if reel_no and reel_no != reel_cpl:
raise CheckException("Subtitle file indicate Reel {} but actually "
"used in Reel {}".format(reel_no, reel_cpl))
def check_subtitle_cpl_reel_number(self, playlist, asset, folder):
""" Subtitle reel number coherence with CPL.
References:
TI Subtitle Specification for DLP Cinema (v1.1) 2.5
https://web.archive.org/web/20140924175755/http://dlp.com/downloads/pdf_dlp_cinema_CineCanvas_Rev_C.pdf
SMPTE ST 428-7:2014 5.6
"""
st_dict = self.st_util.get_subtitle_xml(asset, folder)
if not st_dict:
return
_, asset = asset
reel_no = self.st_util.get_subtitle_elem(st_dict, 'ReelNumber')
reel_cpl = get_reel_for_asset(playlist, asset['Id'])['Position']
if reel_no and reel_no != reel_cpl:
self.error("Subtitle file indicate Reel {} but actually "
"used in Reel {}".format(reel_no, reel_cpl))
