How to Compile the Latest wf-recorder from Source on Raspberry Pi 5 (Debian 12 Wayland)

On Debian 12 Bookworm (Raspberry Pi OS), the desktop environment runs natively on Wayland. Consequently, traditional X11 screen capture utilities (like FFmpeg's -f x11grab) no longer work.

The standard tool for recording Wayland sessions is wf-recorder. However, the stock wf-recorder v0.3 package provided in Debian's default repository lacks several modern enhancements, most notably the --overwrite flag. Compiling the latest version from source gives you full feature support, hardware-accelerated encoding, and audio capture.

1. Install Build Dependencies

Install the required C++ compilers, Meson build system, PipeWire, and FFmpeg development headers:

sudo apt-get update
sudo apt-get install -y g++ meson ninja-build libavutil-dev libavcodec-dev     libavformat-dev libswscale-dev libpulse-dev wayland-protocols libpipewire-0.3-dev wget

2. Download, Configure, and Build wf-recorder

mkdir -p ~/src && cd ~/src
wget https://github.com/ammen99/wf-recorder/releases/download/v0.5.0/wf-recorder-0.5.0.tar.xz
tar -xf wf-recorder-0.5.0.tar.xz
cd wf-recorder-0.5.0

# Configure release build with Meson
meson setup build --prefix=/usr --buildtype=release --reconfigure

# Compile with Ninja
ninja -C build

# Install binary to /usr/local/bin
sudo cp build/wf-recorder /usr/local/bin/

3. Recording Desktop Video and Audio

To record your full Wayland desktop screen with system audio output:

wf-recorder --overwrite -a default -f capture.mp4

Flag Breakdown:

• --overwrite: Automatically overwrites existing destination files without prompting.
• -a default: Captures audio from the default PulseAudio / PipeWire monitor source.
• -f capture.mp4: Output file path. Stop recording at any time by pressing Ctrl + C.

How to Install and Configure Icecast 2 Streaming Audio Server on CentOS 8

Icecast is a high-performance, open-source streaming media audio server capable of broadcasting MP3, Ogg Vorbis, and Opus audio streams. Because prebuilt Icecast packages were initially omitted from CentOS 8 and EPEL 8 repositories, compiling from source with Vorbis and Theora audio support is required.

Environment: CentOS 8 / RHEL 8 • Icecast 2.4.x • Ogg / Vorbis / Theora Codecs

1. Install Build Tools and Codec Dependencies

yum groupinstall "Development Tools" -y
yum install curl-devel libtheora-devel libvorbis-devel libxslt-devel speex-devel libshout-devel -y

2. Download and Build Icecast

cd /usr/src
wget http://downloads.xiph.org/releases/icecast/icecast-2.4.4.tar.gz
tar -zxf icecast-2.4.4.tar.gz
cd icecast-2.4.4

./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var
make && make install

3. Create Service User and Start Daemon

useradd -r -s /sbin/nologin icecast
chown -R icecast:icecast /var/log/icecast

# Launch Icecast as a background daemon
icecast -b -c /etc/icecast.xml

Fixing WebM Audio/Video Desync and Import Issues in FFmpeg, Shotcut, and OpenShot

Screen recordings saved in the WebM format (commonly exported by browser extensions like Nimbus Screenshot, Loom, or Screencastify) often use variable frame rates (VFR) and non-standard Opus/Vorbis audio packet chunking. When importing these files into open-source video editors like Shotcut, OpenShot, or processing them directly with FFmpeg, users frequently experience severe audio desynchronization or corrupted frame rendering.

Root Cause: Variable Frame Rate (VFR) container timing drift in libavformat demuxers.

The FFmpeg Solution: Transcode to Constant Frame Rate (CFR) MP4

Rather than relying on proprietary editors, use FFmpeg to normalize the video timeline to a fixed 30 or 60 fps stream with synchronized AAC audio:

ffmpeg -i input_recording.webm   -vsync cfr -r 30   -c:v libx264 -preset slow -crf 20   -c:a aac -b:a 192k -ar 48000   output_fixed.mp4

The resulting MP4 file maintains crystal-clear audio quality and imports into Shotcut, OpenShot, or Premiere Pro with flawless audio-video synchronization.