def from_model(doc: model.ContentDocument,
isd_config: Optional[ISDConfiguration] = None,
progress_callback=lambda _: None) -> str:
"""Converts the data model to a SRT document"""
srt = SrtContext()
# split progress between ISD construction and SRT writing
def _isd_progress(progress: float):
progress_callback(progress / 2)
# Compute ISDs
isds = ISD.generate_isd_sequence(doc,
_isd_progress,
is_multithreaded=isd_config.multi_thread
if isd_config is not None else True)
# process ISDs
for i, (offset, isd) in enumerate(isds):
for srt_filter in srt.filters:
srt_filter.process(isd)
srt.add_isd(isd, offset)
progress_callback(0.5 + (i + 1) / len(isds) / 2)
srt.finish()
return str(srt)
def from_model(doc: model.ContentDocument, config = None, progress_callback=lambda _: None) -> str:
"""Converts the data model to a VTT document"""
# split progress between ISD construction and VTT writing
def _isd_progress(progress: float):
progress_callback(progress / 2)
# create context
vtt = VttContext(config if config is not None else VTTWriterConfiguration())
# Compute ISDs
isds = ISD.generate_isd_sequence(doc, _isd_progress)
# process ISDs
for i, (begin, isd) in enumerate(isds):
end = isds[i + 1][0] if i + 1 < len(isds) else None
vtt.add_isd(isd, begin, end)
progress_callback(0.5 + (i + 1) / len(isds) / 2)
vtt.finish()
return str(vtt)