Over 100 security-report emails received in September already - and we’re only halfway through the month.

The chart is noisy, but the security workload has grown substantially.

If you’re a large company relying on FFmpeg please donate
ffmpeg.org/donations.html

FFmpeg is critical infrastructure for a lot of big companies.

The security-report workload is rising fast. It would be nice if donations, sponsorships, and code contributions kept pace.

Ampere has clarified that the 2021/22 server was sent to VideoLAN. That server benefited the wider free software multimedia ecosystem. Ampere has also agreed to donate a server to SPI for use in FFmpeg CI. We thank Ampere for helping resolve this.

One piece of the record

JB: if it was, please arrange to have it shipped to Germany so it can be professionally hosted and put to use for FFmpeg.

A few "behind the scenes" shots from our @lexfridman podcast

1) Post interview photo
2) Post interview @TerryBlacks_BBQ
3) Fatigue after six hours of talking

Thank you to all the people who took the time to write nice messages.

FFmpeg was on the @lexfridman podcast!

youtu.be/nepKKz-MzFM?si…

More hand written assembly from legendary "mkver", removing old mmx vc1 mc functions and adding more recent ssse3.

Over 17 times faster than C.

Nice patch from Zuxy removing old MMX(EXT) code and writing a faster sse2 version.

Over three times faster than C

Huge patchset from @TencentGlobal adding hand written ARM NEON assembly for VVC angular prediction.

Over 20 times faster than C.

Every little helps with hand written NEON assembly, even for simple functions.

Up to 2x faster than C

Today's hand written assembly patch from the legendary "mkver" upgrading old MMX code into new(ish) SSSE3:

Over 14 times faster than C.

FFmpeg is mandating human verification of security issues as a result of a spike in AI generated false positives

Thank you to @ZTEPress for sending us hand written RISC-V assembly patches.

Over 11 times faster than C!

@hari_amoor @ronaldosella Basically every other post on @FFmpeg is a screenshot of hand written asm benchmarks vs C. Often 10-20x faster.

Great pull request from @ruikai fixing security issues with patches.

A sixteen year old showing security "researchers" how it's done.

In FFmpeg, teenagers work on world leading C and assembly code.

Here's a great example of the compromises FFmpeg has to make because of the wide variations of ARM CPU cores out there

Someone on the FFmpeg mailing list claims to have built a superoptimiser that beats hand written assembly.

We'll find out soon enough

Patch by legendary "mkver", removing a few redundant functions in existing hand written assembly code.

Speed improvement change from up to 16x faster than C to 18x faster than C.

Assembly code is not necessarily ever finished.

Cool patchset to decode Broderbund Mohawk video files from 1990s games.

FFmpeg aims to play every video file ever made.

More hand written assembly patches from legendary "mkver", removing old MMX code and adding SSE4 for niche audio codec SBC.

Nearly ten times faster than C

Hybrid approach to crc32 with interleaved crc32 instruction and pmull hand written assembly patch.

Over 67 times faster than C.

Thanks to @corsix for the original implementation.

Hand written assembly patch by legendary "mkver" removing old MMX GMC code and replacing it with SSSE3 code

Over ten times faster than C.

Patch for hand written @Arm assembly optimisations of VVC put_chroma_v

Up to five times faster than C

RISC-V SAD hand optimised assembly language code patch in FFmpeg.

Over ten times faster than C

Thanks to @ZTEPress for sending FFmpeg RISC-V patches!

Patch by legendary "mkver" adding median prediction hand optimised assembly code.

Over 27 times faster than C.

Thanks to @mypopydev, we have a Chinese translation of our assembly lessons!

github.com/FFmpeg/asm-les…

More hand optimised assembly language from legendary "mkver"

Over 16 times faster than C

FFmpeg assembly lessons are now available in Turkish

github.com/FFmpeg/asm-les…

OG FFmpeg developer @astrange_e on C++ developers

FFmpeg's Vulkan FFv1 encoder and decoder is being moved to SPIR-V. Here are the benchmark results on an RTX 5070

More ARM hand written assembly patches from @TencentGlobal today cleaning up existing assembly code.

ARM assembly needs constant maintenance as algorithmic approaches may need changing as newer ARM CPUs are released.

(Generally speaking x86 is not like that, code remains forever)

We have commented on "value" before

"There's no value in FFmpeg on its own" according to this guy who doesn't understand the world value apart from its monetary meaning:

youtube.com/watch?v=77fH--…

Huge patchset from @TencentGlobal adding hand written assembly code for HEVC intra prediction

Up to ten times faster than C!

Companies which use FFmpeg should submit hand written assembly patches like Tencent

It's with much sadness that we announce the passing of our friend and colleague Ralph Giles, or rillian as he was known on IRC.

Ralph began contributing to Xiph.org in 2000 and became a core Ghostscript developer in 2001¹ . Ralph made many contributions to the ystem, whether it was as a project lead on Theora or maintaining Xiph infrastructure that has been used across the industry by codec engineers and researchers².

He was also the first to ship Rust code in Firefox³ during his time at Mozilla, which was a major milestone for both the language and Firefox itself.

Ralph was a great contributor, a kind colleague and will be greatly missed.

¹ wizards-of-os.org/archiv/spreche…
² media.xiph.org
³ medium.com/mozilla-tech/d…

Google are sending patches using Codemender

We now have ten sponsors!

github.com/ffmpeg

(Didn't realise @DarthPutinKGB was such a fan!)

We have three Github sponsors. Thank you for your generosity!

Great to see legendary "mkver" removing more legacy MMX code. No major speed improvements today but we love seeing old "emms" functions removed!

Patch for aarch64 NEON PMULL+EOR3 SIMD hand written assembly for CRC functions

Up to 35x faster than C

Thanks to @bagder for covering the FFmpeg AI security situation @fosdem

One Google employee is now sending patches and we are thankful

youtu.be/6wYSwZ20NJU?t=…

Learn more about recent updates in FFmpeg from this weekend's @fosdem

fosdem.org/2026/schedule/…

Many FFmpeg developers are at @fosdem today!

Hi @AMD. FFmpeg developer @quink_lamy is not happy with your AI slop patches.

code.ffmpeg.org/FFmpeg/FFmpeg/…