If you're joining us for the hackfest in Nice next month, please add yourself to the list on the hackfest page in hedgedoc:
https://notes.gstreamer.org/5w3cO5EDTXCT-_dHzaejYA
We hope to see you there!
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2 posts2 participants0 posts today
Posted on the forum about the little #gstreamer plugin I've been working on that zooms into the area of the video that has faces in it (like a certain feature on the fruit company devices). (Oh no, I guess I have "AI experience" now since I've used an ML model for face detection lol) The current code is kinda hacky and I'm looking to upstream pieces to gst-plugins-rs to slim down the amount of custom code required and make the ecosystem better in the process :3
GStreamer Discourse · Working on a face tracking zoom pluginHello 👋 I’ve been working on a plugin (in Rust of course), currently called gst-middle-arena in a subtle reference to a commercial OS feature that inspired it xD Basically it filters a video stream to zoom/crop into (keeping a fixed output size) the area of the image that has people’s faces in it. The need came from mini-conference recordings – I wanted a close-up vertical video feed of the speaker to display side by side with the projector feed, but I didn’t want to operate the camera phy...
There will be a GStreamer Spring Hackfest on 16-18 May 2025 in Nice, France - hope to see you there! More details soon.
https://discourse.gstreamer.org/t/gstreamer-spring-hackfest-2025-on-16-18-may-2025-in-nice-france/
Streaming RTSP/SRTP from Live555 to GStreamer with MIKEY Encryption #gstreamer #v4l
Ask UbuntuStreaming RTSP/SRTP from Live555 to GStreamer with MIKEY EncryptionI am using Live555 to stream an RTSP/SRTP stream, which appears to use MIKEY encryption. On the receiving end, I am using GStreamer. However, it seems that Live555 does not provide an option to
#Linux Weekly Roundup for March 16th, 2025: #Debian 12.10, #KDE Plasma 6.3.3, #Garuda #COSMIC preview, #DXVK 2.6, #Ubuntu to adopt #Rust-based GNU Coreutils, #GStreamer 1.26, KDE Frameworks 6.12, #ChimeraLinux drops #RISCV support, #Audacity 3.7.2, #digiKam 8.6, #LXQt 2.2 features, #Mesa 25.1 defaulting to NVK, #Bodhi Linux 8 to ship with new theme, and more https://9to5linux.com/9to5linux-weekly-roundup-march-16th-2025
I frequently need to analyze GStreamer logs. I find it difficult to analyze sometimes, I have created a small utility that I wish existed. It is available here: https://gstreamerlogs.caricio.com/
and its opensource, of course.
How to connect CIF single-chip Pixart Webcam to gstream in Ubuntu 24.04.2 LTS and sanpshot #gstreamer #snapshot
Ask UbuntuHow to connect CIF single-chip Pixart Webcam to gstream in Ubuntu 24.04.2 LTS and sanpshotHow to connect CIF single-chip "Pixart Webcam" to "Gstreamer" in Ubuntu 24.04.2 LTS and snapshot. How do you even connect old webcams to ubuntu?
Выпущен мультимедийный фреймворк GStreamer 1.26 с поддержкой H.266, улучшенными скрытыми субтитрами, улучшенной интеграцией с Vulkan и многое другое
LinuxMaster Club · Выпуск GStreamer 1.26 | LinuxMaster ClubВыпущен мультимедийный фреймворк GStreamer 1.26 с поддержкой H.266, улучшенными скрытыми субтитрами, улучшенной интеграцией с Vulkan и многое другое
#ew2025: Machine learning object detection with #GStreamer on the world's first #OpenSource Arm V9 motherboard: @Radxa's Orion O6! And yes, it's also running Panthor, the open source GPU kernel driver! Get a first-hand look, booth #4-404. #embeddedworld
Ubuntu 24.04 | Extremely low framerate in webcam due to gstreamer timestamp sync problem #video #2404 #webcam #camera #gstreamer
Ask UbuntuUbuntu 24.04 | Extremely low framerate in webcam due to gstreamer timestamp sync problemI'm kind of new into the Linux ecosystem and still struggling with some parts of it.
I'm trying to use the internal webcam of my laptop but it runs at an extremely low framerate (maybe talking abou...
We're thrilled to announce GStreamer 1.26
... a new major stable feature release!
Check out
https://gstreamer.freedesktop.org/releases/1.26/
for details of all the exciting new features and improvements!
Many thanks to everyone who contributed to this release!
GStreamer 1.26.0 binary packages for Windows, macOS, iOS and Android are also available now at
#GStreamer 1.26 Open-Source Multimedia Framework Officially Released, Here’s What’s New https://9to5linux.com/gstreamer-1-26-open-source-multimedia-framework-released-heres-whats-new
Alright, #GStreamer hivemind, do you know of a good way to seek an audio file with sound preview (scrubbing), but without the pipeline state being "playing"? I'm asking for https://gitlab.gnome.org/GNOME/decibels/-/issues/123
GitLabSound repeats in a tight loop while the mouse button is pressed down on the new seeking waveform (#123) · Issues · GNOME / Decibels · GitLabThis is a follow-up from
Continued thread
A first experiment in #gstreamer is quite promising - on the x220 it already makes Showtime (the future Gnome default player) outperform #mpv with 4k@30fps AV1 or VP9 playback - my hope is to get 4k@60fps work smoothly (SDR - bonus for HDR10, but the required shaders might end up being too heavy).
For those interested, you can find the code at https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8540
GitLabDraft: glupload: Implement udmabuf uploader PoC (!8540) · Merge requests · GStreamer / gstreamer · GitLabSimple proof-of-concept for an udmabuf based uploader that takes sysmem I420 as input - the usual format for many sw-decoders for 8bit - and copies it into...
Subject: Easy backup of video DVD to ISO file
A Linux #CLI person can simply use the #Linux #Perl script linked below. No GUIs or heavy dependencies are needed. The script might also work under Windows 11 or above by way of WSL, but this hasn't been tested.
https://laclin.com/rjkbin/ocdvdtoiso.txt
The script, which we'll refer to as "ocdvdtoiso", backs up a video #DVD optical disc to an ISO data file.
"ocdvdtoiso" bypasses the usual DVD bad-blocks backup prevention mechanism. I wrote the script in the mid-2000s and have used it successfully on numerous DVDs. Note: Scratched DVDs require more advanced tools. That is a subject for another time.
The ISO output file will typically be 4 GB to 8 GB in size. So, it's recommended that you have at least 8 GB of free disk space available before you proceed.
Once you've backed up a DVD disc to an ISO file, you can do the following:
Use Handbrake or FFmpeg to convert the ISO to MKV
Play the MKV on a Smart TV by way of a USB3 stick
Play the MKV on a phone or laptop
Play the ISO on a laptop [this requires an ISO player]
Write the ISO back to a fresh optical disc
In short, you can exercise your unquestioned right to use data that you own as you see fit.
The screenshot further down shows Glide, a cross-platform video player, playing "Mr. Holmes", a portrait of Sherlock Holmes in his 90s. Note: Glide is written in #Rust and is based on #GStreamer and GTK.
The process that I used here was as follows:
Purchase the DVD from an Amazon seller
Use "ocdvdtoiso" to convert the DVD to ISO
Use FFmpeg to convert the ISO to MKV [with subtitles]
Use Glide to play the MKV
Use The GIMP to make the screenshot
"ocdvdtoiso" has 3 lightweight dependencies besides Perl. The dependencies are Linux packages named coreutils, lsdvd, and util-linux.
Everything but lsdvd is pre-installed in most Linux distros. So, it should be sufficient to install lsdvd. In a Debian distro, which includes Linux Mint, Ubuntu, WSL, and many others, the following commands should install the dependencies:
sudo apt-get update
sudo apt-get install coreutils lsdvd perl util-linux
It'll be analogous but different for Arch, Gentoo, RedHat, and other Linux distros.
The only other setup steps needed should be to rename the Perl script to "ocdvdtoiso" and to set execute permissions as follows:
chmod 755 ocdvdtoiso
Note: The "oc" stands for "OldCoder". I have quite a few "oc*" tools. I'll be releasing them as #FOSS as I move towards completion of my Linux distro (Laclin).
"ocdvdtoiso" is a "6 in 1" toolset. You can copy or symlink the file to any of the following 6 filenames. The copied or symlinked commands will serve the indicated purposes:
cdtoiso = Copy data CD to ISO file
ocdvdtoiso = Copy video DVD to ISO file
cdmd5 = Compute data CD MD5 sum
dvdmd5 = Compute video DVD MD5 sum
cdsha1 = Compute data CD SHA1 sum
dvdsha1 = Compute video DVD SHA1 sum
BluRay discs and music CDs aren't supported. I have other toolsets for those types of discs.
Enjoy.
A Linux #CLI person can simply use the #Linux #Perl script linked below. No GUIs or heavy dependencies are needed. The script might also work under Windows 11 or above by way of WSL, but this hasn't been tested.
https://laclin.com/rjkbin/ocdvdtoiso.txt
The script, which we'll refer to as "ocdvdtoiso", backs up a video #DVD optical disc to an ISO data file.
"ocdvdtoiso" bypasses the usual DVD bad-blocks backup prevention mechanism. I wrote the script in the mid-2000s and have used it successfully on numerous DVDs. Note: Scratched DVDs require more advanced tools. That is a subject for another time.
The ISO output file will typically be 4 GB to 8 GB in size. So, it's recommended that you have at least 8 GB of free disk space available before you proceed.
Once you've backed up a DVD disc to an ISO file, you can do the following:
Use Handbrake or FFmpeg to convert the ISO to MKV
Play the MKV on a Smart TV by way of a USB3 stick
Play the MKV on a phone or laptop
Play the ISO on a laptop [this requires an ISO player]
Write the ISO back to a fresh optical disc
In short, you can exercise your unquestioned right to use data that you own as you see fit.
The screenshot further down shows Glide, a cross-platform video player, playing "Mr. Holmes", a portrait of Sherlock Holmes in his 90s. Note: Glide is written in #Rust and is based on #GStreamer and GTK.
The process that I used here was as follows:
Purchase the DVD from an Amazon seller
Use "ocdvdtoiso" to convert the DVD to ISO
Use FFmpeg to convert the ISO to MKV [with subtitles]
Use Glide to play the MKV
Use The GIMP to make the screenshot
"ocdvdtoiso" has 3 lightweight dependencies besides Perl. The dependencies are Linux packages named coreutils, lsdvd, and util-linux.
Everything but lsdvd is pre-installed in most Linux distros. So, it should be sufficient to install lsdvd. In a Debian distro, which includes Linux Mint, Ubuntu, WSL, and many others, the following commands should install the dependencies:
sudo apt-get update
sudo apt-get install coreutils lsdvd perl util-linux
It'll be analogous but different for Arch, Gentoo, RedHat, and other Linux distros.
The only other setup steps needed should be to rename the Perl script to "ocdvdtoiso" and to set execute permissions as follows:
chmod 755 ocdvdtoiso
Note: The "oc" stands for "OldCoder". I have quite a few "oc*" tools. I'll be releasing them as #FOSS as I move towards completion of my Linux distro (Laclin).
"ocdvdtoiso" is a "6 in 1" toolset. You can copy or symlink the file to any of the following 6 filenames. The copied or symlinked commands will serve the indicated purposes:
cdtoiso = Copy data CD to ISO file
ocdvdtoiso = Copy video DVD to ISO file
cdmd5 = Compute data CD MD5 sum
dvdmd5 = Compute video DVD MD5 sum
cdsha1 = Compute data CD SHA1 sum
dvdsha1 = Compute video DVD SHA1 sum
BluRay discs and music CDs aren't supported. I have other toolsets for those types of discs.
Enjoy.
Does the number "1266874889" mean something in #GStreamer, #FFMPEG, or computing in general? An overflow I presume? 
GitLabWhen viewed through a FTP:// remote, Opus audio file properties always claim a "351909 hours 41 minutes 29 seconds" duration (#3789) · Issues · GNOME / Files · GitLab Affected Version Version: 47.1 Distribution: Fedora 41 Also happens with development version: untested ...
Playing some tunes on https://soundcloud.com/aiobahn/popular-tracks I just realized that #SoundCloud does an automatic 100ms fade-in and fade-out when you hit the play/pause button. That feels so nice, especially for music!
I'm wondering if #GStreamer can do that easily, and if we could/should do that in the #GNOME multimedia apps like Amberol and Podcasts (maybe also Decibels and Showtime, though I'm not sure if that would be expected in those cases)
GStreamer 1.26 release candidate 1 is out!
Please give it a spin and report any issues.
Curious what's new? Preliminary release notes with all the details will be made available before the final release.
GStreamer 1.26.0 rc1 binary packages for Windows, macOS, iOS and Android are also available now for testing.
https://discourse.gstreamer.org/t/gstreamer-1-25-90-pre-release-1-26-0-rc1/4180/2
Continued thread
If any sw-decoder people (#dav1d, #ffmpeg, #vpx etc.) read this, do you know how feasible it would be to make decoders:
1. support output formats common for hw-decoders, like NV12, P010 etc.? Do some already do, do the #gstreamer implementions just miss something? Do I miss something?
2. support externally allocated buffers, crucially ones with stride != width?
Both points could help make things more performant - and together they could even allow zero-copy playback with common display engines.
Continued thread
P.S.: the idea was inspired by the #libcamera sw-ISP and the MR can be found at
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8540
GitLabDraft: glupload: Implement udmabuf uploader PoC (!8540) · Merge requests · GStreamer / gstreamer · GitLabSimple proof-of-concept for an udmabuf based uploader that takes sysmem I420 as input - the usual format for many sw-decoders for 8bit - and copies it into...