Closed caption converter
Project description
pycaption is a caption reading/writing module. Use one of the given Readers to read content into a CaptionSet object, and then use one of the Writers to output the CaptionSet into captions of your desired format.
Tested with Python versions 3.6, 3.7, 3.8 and 3.9. (for Python 2 use pycaption < 1.0.0)
For details, see the documentation.
Changelog
2.0.3
Implemented time shift for WebVTTReader
Removed WebVTTWriter ‘start’ position alignment
Updated the SCC Pop-On caption timing logic
Fixed the correction of end times for multiple last captions
Fixed bug when flushing implicit buffers and old key was None
2.0.2
Implemented Tab Offset commands for SCCReader
Implemented caption safe area limits (80% horizontally and 90% vertically)
Implemented SCC translator
2.0.1
Added newline between merged SRT captions with overlapping timestamps
Updated tests for SAMI format
Updated tests for SRT format
Added zero padding to 1-digit hours outputted by WebVTTWriter
2.0.0
Dropped support for Python 3.5
Updated tests to run using pytest
Added pre-commit config
1.0.7
Fixed issue with SCC paint-on buffer not being cleared after storing
Removed null DFXPReader captions from the resulting caption list
Updated SCCReader double command handling to include the positioning and tab offset case
1.0.6
Added MicroDVD format
Fix for missing end times when reading multiple SAMI paragraphs inside a SYNC
Fix for wrong order when multiple SRT captions have the same timestamp
Fix for DFXP timestamps adding leading zeros to 2-digit hours
Added support for BeautifulSoup 4.9
Added tests for SCC to DFXP conversion when the source contains ampersands
Added support for Python 3.9
1.0.5
Added language parameter to WebVTTWriter
Fix for TranscriptWriter merging words at caption boundary
Updated documentation with positioning information
Updated DFXP reader to fallback to the document’s language if no language is present on individual <div>
Introduced PYCAPTION_DEFAULT_LANG environment variable and set it to default to ‘und’
Fixed DFXPReader timestamp validation to accept frames and frames conversion to microseconds
1.0.4
Included tests in PyPI tarball
Ignore WebVTT empty cues instead of raising an exception
Updated BeautifulSoup version to >=4.8.1,<4.9 and fixed failing tests
Handled index error when sending bad timestamp for DFXP format
1.0.3
Fixed issue with SCC reader including both special characters and their potential substitute
Modified enum34 dependency to versions under Python 3.4
Removed Python 3.4 and added 3.6, 3.7 and 3.8 to Travis tests
1.0.2
Fixed typos in SCC positioning codes
Added missing SCC positioning codes to positioning map
1.0.0
Added Python 3 support
0.5.x
Added positioning support
Created documentation
License
This module is Copyright 2012 PBS.org and is available under the Apache License, Version 2.0.
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