FFmpeg 8.1

https://ffmpeg.org/index.html#pr8.1

by gyan • 4 months ago

438 65 4 months ago

ffmpeg.org

gyan• 4 months ago

Changelog:

ffprobe -codec option

EXIF Metadata Parsing

gfxcapture: Windows.Graphics.Capture based window/monitor capture

hxvs demuxer for HXVS/HXVT IP camera format

MPEG-H 3D Audio decoding via mpeghdec

D3D12 H.264 encoder

drawvg filter via libcairo

ffmpeg CLI tiled HEIF support

D3D12 AV1 encoder

ProRes Vulkan hwaccel

DPX Vulkan hwaccel

Rockchip H.264/HEVC hardware encoder

Add vf_scale_d3d12 filter

JPEG-XS parser

JPEG-XS decoder and encoder through libsvtjpegxs

JPEG-XS raw bitstream muxer and demuxer

IAMF Projection mode Ambisonic Audio Elements muxing and demuxing

Add vf_mestimate_d3d12 filter

xHE-AAC Mps212 decoding support (experimental)

Remove the old HLS protocol handler

Vulkan compute codec optimizations

swscale Vulkan support

LCEVC metadata bitstream filter

Add vf_deinterlace_d3d12 filter

ffprobe: only show refs field in stream section when reading frames

ProRes Vulkan encoder

LCEVC parser

LCEVC enhancement layer exporting in MPEG-TS

yboris• 4 months ago

TIL: JPEG XS - an image and video codec that offers both visually and mathematically lossless quality for low latency implementations.

Additionally, JPEG XS compressed content is indistinguishable from the original uncompressed content.

https://en.wikipedia.org/wiki/JPEG_XS

CharlesW• 4 months ago

Additionally, JPEG XS compressed content is indistinguishable from the original uncompressed content.

It can be indistinguishable, as long as you stick with lossless or very low compression ratios. It falls apart at typical JPEG XL compression ratios.

iso16312• 4 months ago

We use JXS when latency is critical. Most h24/265 decodes will have a 10 frame glass-glass delay, JXS drops that to 3 or 4, at a cost of bandwidth (our UHD jxs streams are 1.5gbit rather than 200mbit for hevc)

voidUpdate• 4 months ago

Isn't the point of JPEG to have lossy compression for your photos that still looks fine? As opposed to something like PNG, which has lossless compression

jamesfmilne2• 4 months ago

I've had great results using JPEG-XS to transport video for colour grading in feature film & TV post production. At 3:1 or 4:1 compression ratio is effectively lossless.

It is patent-encumbered though, you have to pay license fees to deploy it.

Almondsetat• 4 months ago

Not royalty free, unfortunately.

bob1029• 4 months ago

gfxcapture: Windows.Graphics.Capture based window/monitor capture
This source provides low overhead capture of application windows or entire monitors. The filter outputs hardware frames in d3d11 format; use hwdownload,format= if system memory frames are required.

This would strongly alter my plans if I were to develop an OSS Discord alternative. Chromium originally looked like a better core to start with largely due to its mature screen capture API. WebRTC is the other big thing, but there are other ways to do that. Native desktop apps (i.e., not browser based) are beginning to look much more compelling to me now.

lostmsu• 4 months ago

You could always use Windows.Graphics.Capture directly.

pjc502• 4 months ago

If you were doing this, consider cribbing from https://github.com/obsproject/obs-studio/tree/master/plugins... which offers a variety of solutions including some rather exciting looking process injection (called "game" there).

I wonder if "entire chat app functions as OBS plugin" would work? Would solve the AV streaming side of the functionality.

HelloUsername• 4 months ago

Wait, are you https://www.gyan.dev/ffmpeg/builds/ ?

TacticalCoder• 4 months ago

What I want to know is how much of these were written and/or debugged using AI tools and which ones? Using which workflow?

For that's an actual project, with countless uses, on countless machines.

Show me the AI. I want to see what AI has generated in those.

(btw I pay religiously my Claude Code subscription plan)

megous• 4 months ago

I wouldn't get too excited about rockchip hw encoding. It's rkmpp based, not an upstream solution. You'd need Rockchip kernel for this, I guess.

stevemk14ebr• 4 months ago

It's still a big deal, you had to compile ffmpeg yourself before

pandaforce• 4 months ago

Khronos published a post on the Vulkan compute codecs in FFmpeg: https://www.khronos.org/blog/video-encoding-and-decoding-wit...

altairprime• 4 months ago

https://news.ycombinator.com/item?id=47410271

rixrax• 4 months ago

Is there a 'HW' guide to show the expected performance of Vulkan compute codecs anywhere?

ghgr• 4 months ago

Oh there's a new version of ffmpeg, I'll just quickly build it from source... no I can't wait I'll download the binary

https://www.youtube.com/watch?v=9kaIXkImCAM

asveikau• 4 months ago

I tend to build ffmpeg from source because package managers don't usually include support for patented codecs.

(Yes I know there are repos to get binaries for some, things like deb-multimedia.)

shevy-java2• 4 months ago

Building ffmpeg itself from source is actually quite easy.

The hardest part IMO is getting the necessary codecs to work; this can take a little while. If you know what audio and video codecs you want and need, and if you get them installed properly, then compiling ffmpeg is really simple and straightforward. It works almost always for me, and I have compiled ffmpeg from source for like +10 or even +15 years.

For reference purposes, my current configure options are:

  ./configure --prefix=/usr/ --enable-gnutls --enable-gpl --enable-libmp3lame --enable-libaom --enable-libopus --enable-libspeex --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libxvid --enable-libx264 --enable-libx265 --enable-nonfree --enable-pthreads --enable-shared --enable-version3 --extra-libs=\"-ldl\" --disable-doc --disable-libopenjpeg --disable-libpulse --disable-static

Probably more codecs could be added, and some options may not be necessary anymore (I changed this last ... years ago, too), but this works for the most part fairly well.

One focus I have is mostly on a few .mp4 files, and for these I think you kind of want x264 x265 and so forth (I think one more codec from google too or so). But it is really quite trivial once you are past the codecs step. You can also start simple with just a few codecs, e. g. one good audio codec and one good video codec. One reason I like to have ffmpeg support many codecs is so I can use mpv, which in itself is really awesome; I like it more than vlc, which is also ok though.

dylan6044• 4 months ago

quite easy? like learning to draw an owl?

getting the stock ffmpeg to compile/build might be "easy", but once you start adding on additional codecs and other features that get you into dependency nightmares "easy" is not the word I would use. I have not been able to use the stock ffmpeg since forever. for example, i see no openssl enabled in your config. I see no freetype. I see you've disabled openjpeg. clearly, you and i use ffmpeg differently which just goes to show your "easy" is very misleading

dmd• 4 months ago

it's easy just /etc/init.apt-get/frob-set-conf --arc=0 - +/lib/syn.${SETDCONPATH}.so.4.2 even my grandma can do that

Amorymeltzer• 4 months ago

For anyone vaguely familiar with ffmpeg, don't sleep on this video. Quite funny, and everything from `yadif` (which I dealt with today!) to mkvtoolnix to "But then it will explode if you have an apostrophe in your file name. Because it doesn't understand that."

beAbU• 4 months ago

That entire channel is a goldmine of prescient industry humour. I don't know where he gets all of his material from to be honest.

blell• 4 months ago

emerge ffmpeg ;)

alfg2• 4 months ago

Building ffmpeg can be simple or complex, depending on how you configure the dependencies and if it's dynamic or static and of course it's target outputs.

I'm currently working on a cross-platform builder that runs within Github Actions runners, but the Mac and Windows builds take up so many of my monthly minutes.

https://github.com/video-commander/ffmpeg-builder

I'm using this as part of another multimedia app I'm working on for video engineers.

nrhk• 4 months ago

I had to build from source because of that CVE that dropped, couldn't do it so I just wrapped the whole thing and injected my own -version command, passed the scanners cleanly

brcmthrowaway• 4 months ago

How much of this release was done by to corporate/big tech employees?

overfeed• 4 months ago

I have no idea how much they contribute back, but pretty much every (big) tech company that does any media transcoding uses ffmpeg.

shevy-java2• 4 months ago

FFmpeg is really great. The only wish I'd have is for the usage to become simpler - both for regular stuff, but also for advanced filtering.

If anyone remembers, avisynth was pretty cool back in the days. You could kind of script video/audio manipulations, a bit like a UNIX/Linux pipe, but kind of simpler, in my opinion. FFmpeg allows for many similar operations, but remembering anything here is ... hard. I'd love for the whole usage API to become much simpler, but it seems nobody among the ffmpeg dev team is considering this. :(

I can't be the only one with that wish though ...

It does not diminish ffmpeg being so great in general, but I think it could be better.

daneel_w• 4 months ago

If you're just looking for an easier solution for encoding video ("regular stuff") then Handbrake is the go-to tool for that.

qingcharles• 4 months ago

One of the best uses of LLMs is to help find the right command line options for tools like ffmpeg.

axus• 4 months ago

It won't always give you a perfect answer the first time, but it's much better than memorizing the manual or interpreting a forum discussion. Haven't used it for ffmpeg, but lots of other command lines.

alfg2• 4 months ago

Prior to LLMs, I made an ffmpeg command line builder. It definitely doesn't cover everything, but handles simple common tasks quite well.

https://ffmpeg-commander.com

dylan6044• 4 months ago

Once I got over the -filter_complex is well, complex phobia, it isn't that bad. The command line makes it look daunting to be sure. But thinking of it as the name suggests of "filter chains" makes it less daunting. It is still cumbersome as every thing needs to be in the command.

Debugging commands gets hairy the more complex they get but you'll get muscle memory on how to search/replace to make line breaks to make it easier, similar to breaking up gnarly SQL. The worst part about debugging is the error messages can be misleading when it interprets the filter chain incorrectly because of some issue you've typoed in there somewhere. Even those start to become recognizable as "it thinks this, which means I probably messed up this other thing instead". To be fair, I work with ffmpeg daily using some commands that make your eyes bleed. So for someone using it every now and then, the practice from repetitive use just takes longer.

Also, saving things as shell scripts helps a lot. A simple script that does the same thing with a few adjustable params can be done with %1, %2 usage or even cleaner with getopts. You can then change small things within a tested complex command.

jcims• 4 months ago

If there’s one thing I’ve entirely handed over to our AI overlords it’s the ffmpeg command line.

junelee77• 4 months ago

nice job

edgarvaldes• 4 months ago

One of the best open-source tools out there. I'm a frequent user of Plex, Jellyfin, Tunarr, local music files, etc. I use it weekly to extract subtitles, trim videos, convert music formats, and remove audio tracks. After writing the previous paragraph, I realized I've never donated to the project; it's time to change that.

mihaelm• 4 months ago

It's a lower-level component in so much stuff we're not even aware of.

cybrox• 4 months ago

FFmpeg is a prime single-block-everything-is-built-on xkcd example.

andrew_lettuce2• 4 months ago

Yep. Which is a great architecture IMO. Simple, performant and flexible: choose 3

jsrcout• 4 months ago

Just realized they tag the releases with great names in math/computing. Very cool.

slartibardfast0• 4 months ago

i'm in the process of adding bidirectional text to bitmap subtitle conversions with Claude Code:

https://connollydavid.github.io/pgs-release/

such a fun project!

valentinconan• 4 months ago

Great, I'll update it. Thanks

FFmpeg 8.1

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