What podcasts say about Jean-Baptiste Kempf
Every statement, with the speaker, the exact quote and the moment it was said.
What Jean-Baptiste Kempf has said on podcasts
48 statements · 31 positive · 9 negative · 3 mixed · 5 neutral
Video and audio compression can reduce data by roughly 100 times.
“the compression on video and audio is 100 times”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 19:45
Reducing color resolution relative to brightness can halve video size without compression.
“we scale down the resolution of the color compared to the brightness. And most of the time and just this, without compression, it divides the size by two.”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 21:57
Each codec generation achieves about 30% lower size at equivalent quality.
“each generation of the codec is like 30% less for the same quality”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 22:37
VLC and FFmpeg inspect file contents rather than trusting filename formats.
“In VLC and FFmpeg, we discard the file format, right? We look into the file to understand what's in it.”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 27:33
VLC is engineered to interpret damaged or malformed media files.
“everything in VLC is prepared to work with broken files.”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 29:13
FFmpeg is the de facto tool for multimedia processing.
“it's really now the de facto tool to process images.”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 36:14
Roughly 2,000–3,000 people have contributed to FFmpeg.
“Since the beginning of FFmpeg, probably 2,000 to 3,000 people have contributed from the beginning”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 43:26
Jean-Baptiste Kempf changed LibVLC’s core license from GPL to LGPL.
“I changed the core of libvlc, which is the engine of vlc, from GPL to lgpl.”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 49:40
Linux runs approximately 70–80% of servers, including Microsoft Azure servers.
“I'm quite sure 70, 80% of the servers are running Linux.”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 57:13
Jean-Baptiste Kempf recommends starting open-source work on a subject one loves.
“my answer is always the same. Work on something you love.”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 1:35:05
The David AV1 decoder contains about 30,000 C lines and 240,000 handwritten assembly lines.
“We are talking, talking about 30,000 lines of C, but 240,000 lines of handwritten assembly”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 2:13:00
About 30% of Netflix video and 50% of YouTube video use AV1.
“30% of the video from Netflix are now in AV1, 50% of YouTube.”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 2:14:00
Compiler auto-vectorization is multiple times slower than handwritten SIMD assembly.
“it's multiple times slower.”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 2:15:54
Hardware-specific optimization will remain beyond reliable vibe coding.
“the core thing that you will not be able to vibe code are optimization for the hardware to be as fast as is possible.”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 2:23:34
Rust improves on C by enforcing stronger memory-safety and ownership guarantees.
“Rust is extremely good in the sense that it's a better C that cares about memory”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 2:33:17
Writing code is roughly an order of magnitude easier than reading code.
“It is an order of magnitude easier to write code than read code.”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 2:34:23
AV1 uses 40–60% less bandwidth than H.264 at equivalent visual quality.
“AV1 saves between 40 and 60% less bandwidth than H264 for the same quality, visual quality”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 3:06:50
AV1 encoding requires roughly 100 times more CPU cycles than H.264 encoding.
“AV1 encoding is 2 order of magnitude more than H.264 in terms of CPU cycle”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 3:08:25
YouTube re-encodes popular videos in AV1 to reduce distribution costs.
“the popular video gets re encoded in AV1”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 3:08:49
VLC is being split into separate sandboxed processes for decoding, demuxing, and filtering.
“what we are trying to do and we're actually doing is splitting VLC into several processes.”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 3:23:27
Adaptive streaming players lower resolution when network congestion limits download speed.
“locally the player is going to read a lower resolution of it.”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 3:28:57
Kyber uses one QUIC-over-UDP connection for low-latency multimedia and control streams.
“we take only one Socket one connection, which is a quic protocol based on udp”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 3:34:42
Kyber aims to enable remote control and observation of machines across distance.
“The goal of Kyber is to make distance disappear because it's either projection of skills or projection of power.”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 3:37:07
Kyber targets four-millisecond glass-to-glass latency.
“My goal is 4 milliseconds Glass to glass latency.”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 3:39:48
Kyber achieves seven-millisecond Windows-to-Windows or Windows-to-Mac latency.
“Not so far. We achieve 7 milliseconds from windows to Windows or Windows to Mac.”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 3:40:19
Millions of robots and drones will operate remotely in the future.
“there is going to be millions of robots or drones are just rolling robots or flying robots or swimming robots”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 3:41:20
AI models will remotely monitor autonomous vehicles for safety.
“all those remote cars will be tele observed by an AI model”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 3:41:45
Kyber aims to eliminate distance-related barriers to real-time machine control.
“the goal of Kyber is to make real time control of machine distance disappear”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 3:42:21
All Kyber components are open source.
“everything on Kyber is open source”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 3:43:00
Kyber uses a dual commercial and AGPL licensing model.
“It's a dual license, commercial and agpl.”
Open the episode · #496 – FFmpeg: The Incredible Technology Behind Video on the InternetListen at 3:43:04
Statements are attributed to the speaker as said on the episode and reflect their view at the time, not PodLume's. They are not advice.