GSoC/2020/StatusReports/SashmitaRaghav: Difference between revisions
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== Basic Subtitling Support in Kdenlive == | == Basic Subtitling Support in Kdenlive == | ||
=== Project Overview === | === Project Overview === | ||
Kdenlive is an open-source video editor based on Qt, MLT, and KDE Framework. This application makes video editing easy with an intuitive workflow. | Kdenlive is an open-source video editor based on Qt, MLT, and KDE Framework. This application makes video editing easy with an intuitive workflow. | ||
Videos in Kdenlive are edited by applying filters or effects, however, the application is largely limited in its ability to | Videos in Kdenlive are edited by applying filters or effects, however, the application is largely limited in its ability to customise and edit subtitles. At present, the application adds subtitles as an effect, namely using the Subtitle effect. The effect uses an FFmpeg filter to burn the subtitle file onto the respective video. Since the subtitle files are hard-coded over the videos, the customisation of the displayed text is not viable. | ||
Basic subtitling support in Kdenlive can be achieved by extending the functionality of the existing “Subtitle” filter | Basic subtitling support in Kdenlive can be achieved by extending the functionality of the existing “Subtitle” filter, giving users more choices over subtitle customisation. | ||
<br><br> | <br><br> | ||
'''Source Code:''' | '''Source Code:''' | ||
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==== Week: 1 and 2 ==== | ==== Week: 1 and 2 ==== | ||
* Create a class to handle subtitles | * Create a class to handle subtitles | ||
* Write a parser for | * Compose a parser for SRT subtitle file formats | ||
* Create a basic list model to | * Write a parser for ASS/SSA subtitle file formats | ||
* Create a basic abstract list model to handle the parsed subtitles | |||
'''Blog Post:''' https://kdenlive.org/en/2020/06/gsoc-20-progress-week-1-and-2 | '''Blog Post:''' https://kdenlive.org/en/2020/06/gsoc-20-progress-week-1-and-2 | ||
==== Week: 3 and 4 ==== | ==== Week: 3 and 4 ==== | ||
* | * Implement the subtitle model to store the subtitles in the correct order. | ||
* Begin work on the | * Design a very basic QML display of subtitles to validate the correct implementation of the subtitle model. | ||
* Begin work on integrating the back-end with the basic front-end on the application timeline interface. | |||
'''Blog Post:''' https://kdenlive.org/en/2020/06/gsoc-20-progress-week-3-and-4 | '''Blog Post:''' https://kdenlive.org/en/2020/06/gsoc-20-progress-week-3-and-4 | ||
=== Phase Two === | === Phase Two === | ||
==== Week: 5 and 6 ==== | ==== Week: 5 and 6 ==== | ||
* Add the signal - slot mechanism to previously implemented subtitle model to connect to various classes of Kdenlive to enable subtitle parsing upon application startup. | |||
* Test and debug the code | |||
'''Blog Post:''' https://kdenlive.org/en/2020/07/gsoc-20-progress-week-5-and-6 | '''Blog Post:''' https://kdenlive.org/en/2020/07/gsoc-20-progress-week-5-and-6 | ||
==== Week: 7 and 8 ==== | ==== Week: 7 and 8 ==== | ||
Revision as of 17:48, 29 August 2020
Basic Subtitling Support in Kdenlive
Project Overview
Kdenlive is an open-source video editor based on Qt, MLT, and KDE Framework. This application makes video editing easy with an intuitive workflow.
Videos in Kdenlive are edited by applying filters or effects, however, the application is largely limited in its ability to customise and edit subtitles. At present, the application adds subtitles as an effect, namely using the Subtitle effect. The effect uses an FFmpeg filter to burn the subtitle file onto the respective video. Since the subtitle files are hard-coded over the videos, the customisation of the displayed text is not viable.
Basic subtitling support in Kdenlive can be achieved by extending the functionality of the existing “Subtitle” filter, giving users more choices over subtitle customisation.
Source Code:
Blog Posts:
- https://sash2501.github.io/posts/GSoC-with-Kdenlive/
- https://kdenlive.org/en/2020/06/basic-subtitling-support-in-kdenlive-gsoc-20/
Project Goals
- Write a parser for subtitle format files
- Add support to manage subtitle files
- Create basic front-end for subtitle customization
Mentors
Work Report
Phase One
Week: 1 and 2
- Create a class to handle subtitles
- Compose a parser for SRT subtitle file formats
- Write a parser for ASS/SSA subtitle file formats
- Create a basic abstract list model to handle the parsed subtitles
Blog Post: https://kdenlive.org/en/2020/06/gsoc-20-progress-week-1-and-2
Week: 3 and 4
- Implement the subtitle model to store the subtitles in the correct order.
- Design a very basic QML display of subtitles to validate the correct implementation of the subtitle model.
- Begin work on integrating the back-end with the basic front-end on the application timeline interface.
Blog Post: https://kdenlive.org/en/2020/06/gsoc-20-progress-week-3-and-4
Phase Two
Week: 5 and 6
- Add the signal - slot mechanism to previously implemented subtitle model to connect to various classes of Kdenlive to enable subtitle parsing upon application startup.
- Test and debug the code
Blog Post: https://kdenlive.org/en/2020/07/gsoc-20-progress-week-5-and-6
Week: 7 and 8
Blog Post: https://kdenlive.org/en/2020/07/gsoc20-progress-week-7-and-8
Phase Three
Blog Post: https://kdenlive.org/en/2020/08/gsoc20-progress-onward-with-the-third-month
About Me
Contact Details
- Name : Sashmita Raghav
- Email ID : [email protected]
- IRC Nick : sassycode
- Telegram : https://t.me/sassycode
- University : Amrita Vishwa Vidhyapeetham, Amritapuri
- Location : Kerala, India (UTC+5:30)