This Python program is a comprehensive script that automates the creation of short videos (e.g., for TikTok, YouTube Shorts, Instagram) with synchronized subtitles and auto-generated audio speech. Below is a detailed description of its functionality:

1. User Input
• Content Generation Option:
◦ If the user selects "yes," the program uses the OpenAI API to generate a text script based on a specific theme provided by the user.
◦ The generated content is tailored to meet specific requirements (e.g., written in your language, includes a captivating hook at the beginning, excludes emojis or hashtags).
◦ The user can further refine the generated content if necessary.
• Manual Option:
◦ The user can directly input the desired video content.

2. Audio Generation
• The program converts the text content into audio using text to speech in any language.
• The audio is saved as an MP3 file.

3. Video Creation
• Video Background:
◦ A random background clip (e.g., Minecraft) is selected.
◦ The clip is trimmed and synchronized to match the duration of the generated audio.
◦ Background music is added to enhance the video.
• Resizing:
◦ The clip is adjusted to a 9:16 format (ideal for TikTok and Shorts), with cropping applied if necessary.

4. Audio Transcription
• Using the Faster Whisper model, the program transcribes the audio into time-stamped segments, generating precise word-level timing data.
• The data, including start and end timestamps for each word, is saved as a JSON file.

5. Subtitle Creation
• Text Segmentation:
◦ The text is divided into subtitle lines based on duration, character count, and detected pauses in the audio.
• Dynamic Subtitles:
◦ For each synchronized word, the program creates visual subtitles using MoviePy.
◦ Words are dynamically highlighted as they are spoken, with an effect that changes the text color.
◦ A semi-transparent background is added behind the text to improve readability.

6. Final Composition and Export
• The animated subtitles are overlaid onto the gameplay video, centered on the clip.
• The final video is exported as an MP4 file using the H.264 codec, including synchronized audio.

Final Output
The result is a vertical video suitable for social media platforms, featuring engaging gameplay, automatically generated audio, and synchronized subtitles with word-by-word highlighting.

Tested with Python 3.11