Lex Fridman Podcast
Lex Fridman
#496 – FFmpeg: The Incredible Technology Behind Video on the Internet
MAY 6, 2026263 MIN
#496 – FFmpeg: The Incredible Technology Behind Video on the Internet
MAY 6, 2026263 MIN
Description
<p>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.<br />
Thank you for listening ❤ Check out our sponsors: <a href="https://lexfridman.com/sponsors/ep496-sc">https://lexfridman.com/sponsors/ep496-sc</a><br />
See below for timestamps, transcript, and to give feedback, submit questions, contact Lex, etc.</p>
<p><b>Transcript:</b><br />
<a href="https://lexfridman.com/ffmpeg-transcript">https://lexfridman.com/ffmpeg-transcript</a></p>
<p><b>CONTACT LEX:</b><br />
<b>Feedback</b> – give feedback to Lex: <a href="https://lexfridman.com/survey">https://lexfridman.com/survey</a><br />
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<b>Hiring</b> – join our team: <a href="https://lexfridman.com/hiring">https://lexfridman.com/hiring</a><br />
<b>Other</b> – other ways to get in touch: <a href="https://lexfridman.com/contact">https://lexfridman.com/contact</a></p>
<p><b>EPISODE LINKS:</b><br />
FFmpeg on X: <a href="https://x.com/FFmpeg">https://x.com/FFmpeg</a><br />
FFmpeg: <a href="https://ffmpeg.org/">https://ffmpeg.org/</a><br />
VideoLAN (VLC): <a href="https://www.videolan.org/">https://www.videolan.org/</a><br />
VideoLAN on X: <a href="https://x.com/videolan">https://x.com/videolan</a><br />
Jean-Baptiste’s Website: <a href="https://jbkempf.com/">https://jbkempf.com/</a><br />
Jean-Baptiste’s LinkedIn: <a href="https://www.linkedin.com/in/jbkempf/">https://www.linkedin.com/in/jbkempf/</a><br />
Jean-Baptiste’s GitHub: <a href="https://github.com/jbkempf">https://github.com/jbkempf</a><br />
Kieran’s X: <a href="https://x.com/kierank_">https://x.com/kierank_</a><br />
Kieran’s LinkedIn: <a href="https://bit.ly/3OORhmC">https://bit.ly/3OORhmC</a><br />
Kieran’s GitHub: <a href="https://github.com/kierank">https://github.com/kierank</a></p>
<p><b>SPONSORS:</b><br />
To support this podcast, check out our sponsors & get discounts:<br />
<b>Larridin:</b> Measure AI adoption in your business.<br />
Go to <a href="https://lexfridman.com/s/larridin-ep496-sc">https://larridin.com</a><br />
<b>Blitzy:</b> AI agent for large enterprise codebases.<br />
Go to <a href="https://lexfridman.com/s/blitzy-ep496-sc">https://blitzy.com/lex</a><br />
<b>BetterHelp:</b> Online therapy and counseling.<br />
Go to <a href="https://lexfridman.com/s/betterhelp-ep496-sc">https://betterhelp.com/lex</a><br />
<b>Fin:</b> AI agent for customer service.<br />
Go to <a href="https://lexfridman.com/s/fin-ep496-sc">https://fin.ai/lex</a><br />
<b>LMNT:</b> Zero-sugar electrolyte drink mix.<br />
Go to <a href="https://lexfridman.com/s/lmnt-ep496-sc">https://drinkLMNT.com/lex</a><br />
<b>Perplexity:</b> AI-powered answer engine.<br />
Go to <a href="https://lexfridman.com/s/perplexity-ep496-sc">https://perplexity.ai/</a></p>
<p><b>OUTLINE:</b><br />
(00:00) – Introduction<br />
(03:00) – Sponsors, Comments, and Reflections<br />
(10:48) – Weirdest things VLC opens<br />
(15:12) – How video playback works<br />
(24:33) – Video codecs and containers<br />
(35:20) – FFmpeg explained<br />
(56:20) – Linus Torvalds<br />
(1:00:59) – Turning down millions to keep VLC ad-free<br />
(1:15:17) – FFmpeg & Google drama<br />
(1:34:31) – FFmpeg developers<br />
(1:41:08) – VLC and FFmpeg<br />
(1:45:42) – History of FFmpeg<br />
(1:48:59) – Reverse engineering codecs<br />
(2:02:14) – FFmpeg testing<br />
(2:06:21) – Assembly code (handwritten)<br />
(2:30:39) – Rust programming language<br />
(2:39:55) – FFmpeg and Libav fork<br />
(2:48:17) – Open source burnout<br />
(2:56:04) – x264 and internet video<br />
(3:09:20) – Video compression basics<br />
(3:16:17) – CIA and fake VLC<br />
(3:26:52) – Ultra low latency streaming<br />
(3:44:20) – AV2 codec and video patents<br />
(3:54:12) – VLC backdoors<br />
(4:04:27) – Video archiving<br />
(4:11:04) – Future of FFmpeg and VLC</p>