srtparser.h : Simple, yet powerful C++ SRT Subtitle Parser Library.

srtparser.h is a single header, simple and powerful C++ srt subtitle parsing library that allows you to easily handle, process and manipulate srt subtitle files in your project. It is an extension of Oleksii Maryshchenko’s simple subtitle-parser. It has following features :

1. It is a single header C++ (CPP) file, and can be easily used in your project.

2. Focus on portability, efficiency and simplicity with no external dependency.

3. Wide variety of functions at programmers disposal to parse srt file as per need.

4. Capable of :

   • extracting and stripping HTML and other styling tags from subtitle text.

   • extracting and stripping speaker names.

   • extracting and stripping non dialogue texts.

5. Easy to extend and add new functionalities.

How to use srtparser.h

General usage

srptparser.h is a cross-platform robust srt subtitle parser.

• Download srtparser.h from https://github.com/saurabhshri/simple-yet-powerful-srt-subtitle-parser-cpp

• Include the header file in your program. #include "lib/srtparser.h"

• Create SubtitleParserFactory object. Use this factory object to create SubtitleParser object.

SubtitleParserFactory *subParserFactory = new SubtitleParserFactory("inputFile.srt");
SubtitleParser *parser = subParserFactory->getParser();

//to get subtitles

std::vector<SubtitleItem*> sub = parser->getSubtitles();

• Call appropriate functions to perform parsing.

See demo usage in examples directory.

Parser Functions

The following is a complete list of available parser functions.

Syntax:

Class	Return Type	Function	Description
SubtitleParserFactory	SubtitleParserFactory	SubtitleParserFactory("inputFile.srt")	Creates a SubtitleParserFactory object. Here the inputFile.srt is the path of subtitle file to be parsed. This object is used to create parser. E.g.: SubtitleParserFactory *subParserFactory = new SubtitleParserFactory("inputFile.srt");
SubtitleParserFactory	SubtitleParser	getParser()	Returns the SubtitleParser object. This object will be used to parse the subtitle file. E.g.: SubtitleParser *parser = subParserFactory→getParser();
SubtitleParser	std::vector<SubtitleItem*>	getSubtitles()	Returns the Subtitle as SubtitleItem object. E.g.: std::vector<SubtitleItem*> sub = parser→getSubtitles();
SubtitleParser	std::string	getFileData()	Returns the complete file data read as it is from inputFile.srt E.g.: std::string fileData = parser→getFileData();
SubtitleItem	long int	getStartTime()	Returns the starting time of subtitle in milliseconds. E.g.: long int startTime = sub→getStartTime();
SubtitleItem	long int	getEndTime()	Returns the ending time of subtitle in milliseconds. E.g.: long int endTime = sub→getEndTime();
SubtitleItem	std::string	getStartTimeString()	Returns the starting time of subtitle in srt format. E.g.: std::string startTime = sub→getStartTimeString();
SubtitleItem	std::string	getEndTimeString()	Returns the ending time of subtitle in srt format. E.g.: std::string endTime = sub→getEndTimeString();
SubtitleItem	std::string	getText()	Returns the subtitle text as present in .srt file. E.g.: std::string text = sub→getText();
SubtitleItem	std::string	getDialogue(bool keepHTML, bool doNotIgnoreNonDialogues, bool doNotRemoveSpeakerNames);	Returns the subtitle text after processing according to parameters. keepHTML = 1 to stop parser from stripping style tags doNotIgnoreNonDialogues = 1 to stop parser from ignoring and extracting non dialogue texts such as (laughter). doNotRemoveSpeakerNames = 1 to stop parser from ignoring and extracting speaker names By default (0,0,0) values are passed. E.g.: std::string text = sub→getDialogue();
SubtitleItem	int	getWordCount()	Returns the count of number of words present in the subtitle dialogue. E.g.: int wordCount = sub→getWordCount();
SubtitleItem	std::vector<std::string>	getIndividualWords()	Returns string vector of individual words present in subtitle. E.g.: std::vector<std::string> words = sub→getIndividualWords();
SubtitleItem	bool	getIgnoreStatus()	Returns the ignore status. Returns true, if the justDialogue field i.e. subtitle after processing is empty. _E.g.: bool ignore = sub→getIgnoreStatus();
SubtitleItem	int	getSpeakerCount()	Returns the count of number of speakers present in the subtitle. E.g.: int speakerCount = sub→getSpeakerCount();
SubtitleItem	std::vector<std::string>	getSpeakerNames()	Returns string vector of speaker names. E.g.: std::vector<std::string> speakerNames = sub→getSpeakerNames();
SubtitleItem	int	getNonDialogueCount()	Returns the count of number of non dialogue words present in the subtitle. E.g.: int nonDialogueCount = sub→getNonDialogueCount();
SubtitleItem	std::vector<std::string>	getNonDialogueWords()	Returns string vector of non dialogue words. E.g.: std::vector<std::string> nonDialogueWords = sub→getNonDialogueWords();
SubtitleItem	int	getStyleTagCount()	Returns the count of number of style tags present in the subtitle. E.g.: int styleTagCount = sub→getStyleTagCount();
SubtitleItem	std::vector<std::string>	getStyleTags()	Returns string vector of style tags. E.g.: std::vector<std::string> styleTags = sub→getStyleTags();
SubtitleWord	std::string	getText()	Returns the subtitle text as present in .srt file. E.g.: std::string text = sub→getText();

Examples

While I’ve tried to include examples in the above table, a compilation of all of them together in a single C++ program can be found in example directory.

Contributing

Suggestions, features request, PRs, bug reports, bug fixes are welcomed. I’ll be thankful.

Credits

Built upon a MIT licensed simple subtitle-parser called LibSub-Parser by Oleksii Maryshchenko.

The original parser had 3 major functions : getStartTime(), getEndTime() and getText().

Rest work done by Saurabh Shrivastava, originally for using this in his GSoC project.