
#496 – FFmpeg: The Incredible Technology Behind Video on the Internet
Lex Fridman Podcast
Intro
Lex Fridman introduces FFmpeg and VLC, thanks the open source community, and reads sponsor messages before the conversation begins.
Jean-Baptiste Kempf is lead developer of VLC and president of VideoLAN. Kieran Kunhya is a longtime FFmpeg contributor, codec engineer, and the person behind the now-infamous FFmpeg account on X.
Thank you for listening ❤ Check out our sponsors: https://lexfridman.com/sponsors/ep496-sc
See below for timestamps, transcript, and to give feedback, submit questions, contact Lex, etc.
Transcript:
https://lexfridman.com/ffmpeg-transcript
CONTACT LEX:
Feedback – give feedback to Lex: https://lexfridman.com/survey
AMA – submit questions, videos or call-in: https://lexfridman.com/ama
Hiring – join our team: https://lexfridman.com/hiring
Other – other ways to get in touch: https://lexfridman.com/contact
EPISODE LINKS:
FFmpeg on X: https://x.com/FFmpeg
FFmpeg: https://ffmpeg.org/
VideoLAN (VLC): https://www.videolan.org/
VideoLAN on X: https://x.com/videolan
Jean-Baptiste’s Website: https://jbkempf.com/
Jean-Baptiste’s LinkedIn: https://www.linkedin.com/in/jbkempf/
Jean-Baptiste’s GitHub: https://github.com/jbkempf
Kieran’s X: https://x.com/kierank_
Kieran’s LinkedIn: https://bit.ly/3OORhmC
Kieran’s GitHub: https://github.com/kierank
SPONSORS:
To support this podcast, check out our sponsors & get discounts:
Larridin: Measure AI adoption in your business.
Go to https://larridin.com
Blitzy: AI agent for large enterprise codebases.
Go to https://blitzy.com/lex
BetterHelp: Online therapy and counseling.
Go to https://betterhelp.com/lex
Fin: AI agent for customer service.
Go to https://fin.ai/lex
LMNT: Zero-sugar electrolyte drink mix.
Go to https://drinkLMNT.com/lex
Perplexity: AI-powered answer engine.
Go to https://perplexity.ai/
OUTLINE:
(00:00) – Introduction
(03:00) – Sponsors, Comments, and Reflections
(10:48) – Weirdest things VLC opens
(15:12) – How video playback works
(24:33) – Video codecs and containers
(35:20) – FFmpeg explained
(56:20) – Linus Torvalds
(1:00:59) – Turning down millions to keep VLC ad-free
(1:15:17) – FFmpeg & Google drama
(1:34:31) – FFmpeg developers
(1:41:08) – VLC and FFmpeg
(1:45:42) – History of FFmpeg
(1:48:59) – Reverse engineering codecs
(2:02:14) – FFmpeg testing
(2:06:21) – Assembly code (handwritten)
(2:30:39) – Rust programming language
(2:39:55) – FFmpeg and Libav fork
(2:48:17) – Open source burnout
(2:56:04) – x264 and internet video
(3:09:20) – Video compression basics
(3:16:17) – CIA and fake VLC
(3:26:52) – Ultra low latency streaming
(3:44:20) – AV2 codec and video patents
(3:54:12) – VLC backdoors
(4:04:27) – Video archiving
(4:11:04) – Future of FFmpeg and VLC


