[Good First Issue] Add proper TypeScript strict null checks in ffmpeg.ts

[magic-peach]

Overview

Enable and fix TypeScript strict null checks in src/lib/ffmpeg.ts. The file uses non-null assertions (!) that could hide real null dereferences.

Task

1. Check tsconfig.json has 'strict': true
2. Find all ! non-null assertions in ffmpeg.ts
3. Replace with proper null checks or early returns

Acceptance Criteria

• No unsafe ! assertions in ffmpeg.ts
• Proper null checks in place
• TypeScript compiles without strict errors

Estimated effort: 30 minutes

[kunal-yelgate]

Hey @magic-peach 👋

I'd like to work on this!

My plan:

• Check tsconfig.json for strict: true
• Find all ! non-null assertions in ffmpeg.ts
• Replace them with proper null checks or early returns

Please assign this to me @kunal-yelgate. I'll raise a PR soon! 🚀

[magic-peach]

@kunal-yelgate please star the repo,would really appreciate it !

[SARTHAKJINDAL1]

Hi @magic-peach , I would like to work on this issue under GSSoC'26. Please assign it to me.

[samrin1502]

Hi, I would like to work on this issue under GSSoC'26.please assign this to me...I haven't got any projects this will be my first one and I will be grateful to you