#ffmpeg

2025-05-28

Мандельброта с анимации gif и сделанный fasm, Delphi, ffmpeg

У нас есть много программ для рисования множество Мандельброта. Но сделать гиф с анимации — такового нет. Значит сделаем! ) Это гиф! commons.wikimedia.org/wiki/Fil 600 × 600 пкс, размер файла: 58,54 МБ, MIME-тип: image/gif, закольцованный

habr.com/ru/articles/913344/

#fasm #Delphi #ffmpeg #mandelbrot #мандельброт #анимация

2025-05-27

The PGS format doesn't specify whether a specific frame in the subtitle stream is forced, correct?
That is, I can use one of the streams for forced, and the other for all subtitles?

Which is different to the dvdsub format, which can and will flag a frame as forced, if needed.

#FFmpeg #HandBrake #Emby

Mayor of Banjotownmayor@banjo.town
2025-05-27

#ffmpeg #noteToSelf to burn timecode with drawtext:

ffmpeg -i video.mp4 -vf drawtext="fontsize=15:fontfile=/path/to/DroidSansMono.ttf:\
timecode='00\:00\:00\:00':rate=25:text='TCR\:':fontsize=72:fontcolor='white':\
boxcolor=0x000000AA:box=1:x=860-text_w/2:y=960"

2025-05-27

@igb But still #ffmpeg is kool!

2025-05-27

Usually, I'm quite happy with #Linux:

It just works, and I don't have to think about it at all.

But sometimes, I reckon: If it sucks, it sucks badly.

I use the command line video editor #ffmpeg quite a lot, but yesterday, it just stopped working, first producing wrong results and then weird error messages.

Internet search for the error messages gave lots of results from the 2010s and Reddit threads where the issue remained unresolved.

"OK", I thought, "Let's do what everyone does":

1/3

Ian Brown :verified:igb@mastodon.hccp.org
2025-05-27

While #ffmpeg can turn our "show" into a "podcast", it can’t turn our show into an enjoyable experience for our listeners.

Sorry about that.

#IanAndJaySpaceOut

overcast.fm/+AA2juBgB84g

2025-05-26

3 kleine Helfer: 3x Bildschirm aufnehmen

tube.tchncs.de/w/mC4UXdNqpYTaH

furiclefuricle
2025-05-26

Does anybody know how to take a screenshot of all monitors in , from a command line?

Preferably without 3rd party software?

Seems like a simple thing, and yet... the common powershell answer on a hundred websites using winforms does NOT work if scaling is not set to 100%

nircmd might work, but the org malware software lights up like a Christmas tree if you try any nirsoft

Believe it or not, the best solution I've found so far is...

-f gdigrab -i desktop -frames:v 1 out.png

2025-05-26

OV5647 camera on Raspberry Pi 5B, can't open #2404 #ffmpeg #camera #gstreamer

askubuntu.com/q/1549419/612

Michal :verified: :btw:michal@kottman.xyz
2025-05-26
Zeroday Podcast (stefan)zeroday@podcasts.social
2025-05-26

Liebe #linux Nerds, die Ihr euch alle besser auskennt als ich mit #handbrake :

gibt es einen weg ein weg, um ein custom Profile in Handbrake in einen #ffmpeg aufruf zu convertieren?

Hinergrund:

Handbrake lässt sich nicht automatisieren wenn man es über #flatpak holt... oder kennt einer einen Weg zur #Automatisierung von Handbrake???

2025-05-25

An FFMPEG cheatsheet. I'm getting deja vu to an previous post, but this is useful.

github.com/rendi-api/ffmpeg-ch

#ffmpeg #videoprocessing

Fossery Tech :debian: :gnome:fosserytech@social.linux.pizza
2025-05-25

(Linux news in original post)

FOSS NEWS

Mozilla discontinues Pocket and Fakespot to focus on Firefox development:
omgubuntu.co.uk/2025/05/mozill
(Or rather to focus on ToS development lol)

Signal introduces new "Screen security" feature in Windows to prevent Recall from monitoring conversations:
signal.org/blog/signal-doesnt-

Digital payment system GNU Taler gets accepted in Switzerland:
news.itsfoss.com/gnu-taler-swi

New Mullvad VPN loader available for Windows and MacOS to simplify installation:
alternativeto.net/news/2025/5/

GIMP 3.0.4 released with various bug fixes, improvements:
9to5linux.com/gimp-3-0-4-open-

FFmpeg FFV1 Vulkan encoder provides +35% improvement for AMD, +50% for NVIDIA:
phoronix.com/news/FFmpeg-Faste

Luanti 5.12.0 released with SDL2 for window and input handling (enabling touch screen controls on all devices, support for non-QWERTY keyboards, high-DPI screens, IME support for text input, F11 to toggle fullscreen), keybindings can be set in Settings and can be toggled, option to enable dig and place buttons on touchscreens, node textures displayed in inventory, hotbar and hand, Reviews tab for package pages, etc.:
blog.luanti.org/2025/05/24/5.1

#WeeklyNews #News #FOSS #OpenSource #FOSSNews #OpenSourceNews #Mozilla #MozillaPocket #Pocket #Fakespot #Signal #Mullvad #MullvadVPN #GIMP #GIMP3 #FFmpeg #Luanti #Minetest #ContentCreation #ChatService #ChatApp #ImageManipulation #VPN #Multimedia #FOSSGame #FOSSGaming #OpenSourceGame #Privacy #Security #FosseryTech

はぐれ社会福祉士2号epower_be
2025-05-24

音声だけ拾って家で楽しむ方法。
yt-dlp -f bestaudio --extract-audio --audio-format mp3 --audio-quality 160K "URL"

chatgpt.com/share/6831814b-fdf

yt-dlpで落とした音声をaudaciousで再生してる画像です。
2025-05-23

@cursedsql only 2% of all forks survive long enough to evolve into its own project. many of them are carried by a larger project behind, e.g. a distribution. also the effect for the end user is likely negligible.

a #ffmpeg fork has larger chances of survival if developers can integrate new codecs or new versions of existing codecs more swiftly than with the original.

@JustinDerrick @EdwinG

2025-05-23

Talk is cheap, send patches.

#opensource #FLOSS #ffmpeg

A photo of a chat on twitter from February 2024:

FFmpeg:  “FFmpeg is written in C and assembly”

Soundwave: “Your codebase is a mess.”

FFmpeg: “Talk is cheap, send patches.”

(Alt text provided by Justin Derrick)
Third spruce tree on the lefttezoatlipoca@mas.to
2025-05-22

@jcrabapple I had a few stumbles with #JellyFin to start (around it needing a special - but sanctioned - build of #ffmpeg on my platform), but once I figured that out it has been smooth sailing and Im quite enjoying it. Although metadata success relies on proper media curation, but #Filebot has been super helpful there and worth its one-time cost.

If only there were #xbox and #ps5 clients for it; rn i use a low power linux box for playback on my TV.

razzlom is always sadrazzlom@quietplace.xyz
2025-05-22

Встретил баг в #ffmpeg о котором все знают, но за 10 лет никто так и не пофиксил. ​:blobcatsadshrug:​

Rainer "friendica" Sokollrainer@friendica.sokoll.com
2025-05-20
Seit ein paar Wochen erstelle ich Sicherheitskopien von Filmen auf Bluerays. #ffmpeg rockt.
Als Videocodec nehme ich libsvtav1, für Audio libopus. Für Video hat sich als sweet spot herausgestellt:
 -c:v libsvtav1 -preset 4 -crf 30

Jedenfalls für meine schwerhörigen Augen. Aber so einfach ist das nicht. Beispiel Dune. Der große Sohn hat sich beschwert: Sichtbare Farbsäume bei den Wüstenszenen.
Ja: Wüsten haben einen Farbton: Gelb-braun mit minimalen Abstufungen. Das kriegt der Encoder mit meinen Einstellungen nicht gut hin, für Actionszenen wäre es vermutlich OK.
Und: Der Film ist zwar digital aufgenommen, aber analog belichtet, das bedeutet: Filmkorn. Filmkorn ist aber was anderes als digital chromatische Abberationen, Farbrauschen.
Mein aktueller Versuch:
-c:v libsvtav1 -preset 4 -crf 5 -svtav1-params tune=0:film-grain=10 

Die Dateigröße (wird durch crf bestimmt) ist in etwa um den Faktor 9 gestiegen. Ein Kollege kaute mir dann noch ein Ohr ab: Fourier-Transformationen. Nein, davon habe ich wirklich gar keine Ahnung und verstand absolut gar nichts, es hörte sich aber interessant an 😉

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