Question 1

How to convert SRT to WebVTT using astisub CLI?

Accepted Answer

Run the command 'astisub convert -i input.srt -o output.vtt'. The CLI handles conversion between all supported formats seamlessly, as shown in the README examples for direct file operations.

Question 2

astisub vs Python's pysubtitle for subtitle processing – which should I use?

Accepted Answer

astisub is ideal for Go-based projects or CLI automation in Go environments, offering a dependency-free library. For Python ecosystems, pysubtitle or similar libraries might integrate more naturally, though astisub's CLI provides cross-language utility.

Question 3

How do I merge multiple subtitle files in Go with astisub?

Accepted Answer

Load subtitle files using astisub.OpenFile or ReadFrom functions, then call the Merge method on one subtitle object with another. Remember to handle errors, as the README warns, to avoid runtime issues.

Question 4

Does astisub support advanced .ass file styling like animations?

Accepted Answer

astisub supports .ass file parsing and writing for basic subtitle manipulation, but it focuses on core operations like timing and formatting. For complex styling effects, you may need to extend the library or use specialized tools.

Question 5

Can I batch process subtitle files with astisub for a video series?

Accepted Answer

Yes, use the CLI commands like sync or convert in shell scripts for batch operations, or programmatically loop through files in Go. The optimize and linear correction features help standardize timing across multiple files.

Question 6

How to handle errors when using the astisub library in my code?

Accepted Answer

Always check errors returned by functions like OpenFile or Write, as the README emphasizes. Implement error handling in your Go code to manage issues like file corruption or format mismatches gracefully.

go-astisub

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