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kazam
Kazam2 - Linux Screen Recorder, Broadcaster, Capture and OCR with AI in mind
Stars: 153
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Kazam 2.0 is a versatile tool for screen recording, broadcasting, capturing, and optical character recognition (OCR). It allows users to capture screen content, broadcast live over the internet, extract text from captured content, record audio, and use a web camera for recording. The tool supports full screen, window, and area modes, and offers features like keyboard shortcuts, live broadcasting with Twitch and YouTube, and tips for recording quality. Users can install Kazam on Ubuntu and use it for various recording and broadcasting needs.
README:
Kazam 2.0 is a versatile tool for screen recording, broadcasting, capturing and optical character recognition(OCR).
Main Features:
-
Screen Recording: Kazam allows you to capture everything displayed on your screen and save it as a video file. The recorded video is saved in a format compatible with any media player that supports H264, VP8 codec and WebM video format.
-
Broadcasting: Kazam offers the ability to broadcast your screen content live over the internet, making it suitable for live streaming sessions. It supports Twitch and Youtube live broadcasting at the time of this writing.
-
Optical Character Recognition (OCR): Kazam includes OCR functionality, enabling it to detect and extract text from the captured screen content, which can then be edited or saved.
-
Audio Recording: In addition to screen content, Kazam can record audio from any sound input device that is recognized and supported by the PulseAudio sound system. This allows you to capture both the screen and accompanying audio, such as voice narration or system sounds, in your recordings.
-
Web Camera: Kazam support web camera recording and users can drag and drop webcam window anywhere in the screen to suit the recording need.
-
Full Screen, Window and Area Mode: Kazam support full screen, window and area modes.
📌 Please use the latest version kazam 2.0.0. Make sure the version is the latest when you report issues.
🍄 Tested in: Ubuntu 20.04, 22.04, and 24.04 with Python 3.8 - 3.12.
pip install -U kazam
Kazam needs some dependency libraries like dbus
, cairo
to work. In Ubuntu, you can use the following command to install them:
sudo apt install build-essential libpython3-dev \
libdbus-1-dev libcairo2-dev libgirepository1.0-dev \
gir1.2-gudev-1.0 gir1.2-keybinder-3.0 python3-gi python3-gst-1.0 xdotool -y
In Ubuntu, make sure the PulseAudio GStreamer plugin is installed. If not, run:
sudo apt reinstall gstreamer1.0-pulseaudio -y
- To use OCR features, please install:
sudo apt-get install tesseract-ocr -y
pip install pytesseract pillow rapidocr-onnxruntime
- Live Broadcasting
- Preferences Window
If you want to run Kazam from the source tree, there are a few limitations that you have to take into account. Every icon has to be taken from the currently installed icon theme. Toolbars will not show any icons, and you will not see Unity AppIndicator.
To run Kazam, simply execute the following commands in the source tree:
pip install -r requirements.txt
cd bin
./kazam
Make sure ~/.local/bin is in your PATH, and running kazam
in your terminal should work.
If you already have Kazam installed, then Kazam icons will be displayed properly.
SUPER-CTRL-Q - Quit
SUPER-CTRL-W - Show/Hide main window
SUPER-CTRL-R - Start Recording
SUPER-CTRL-F - Finish Recording
On a normal Logitech keyboard, SUPER-CTRL is Ctrl+CMD
.
-
Choose a small framerate. My personal setup is framerate equal to 3. Framerates above 20fps are unlikely to work well because of software and hardware limitations. If you increase the framerate and the resulting video framerate drops, that is because the encoder can't keep up.
-
Always do a sound check, especially if you are recording live commentary with background sound. I got the best results when I used earphones to listen to the audio while recording. This way, your mic will not pick up any audio coming from the speakers.
-
If you really want lossless quality, then you will have to record in RAW format. This is possible, but without an SSD with a lot of free space, your results will be terrible. 1920x1080 at 15 frames per second will need around 45 MB of disk space per second. Most people will want to record at 20 or 25 frames per second. Most disks will not handle that, and your system will start to crawl.
-
Your next best bet is HUFFYUV format, which is a little bit friendlier on disk bandwidth with 28 MB per second at 15 frames per second. The problem? Not many video editors and players can handle HUFFYUV, let alone video sharing services.
Kazam 2 support live broadcasting with Twitch and YouTube.
Click File
-> Preferences
, and then click Broadcast
tab. In Server URL
, input rtmp://live.twitch.tv/app/
.
For Stream Key
, please login https://www.twitch.tv/ with your twitch account. Then go to Creator Dashboard
-> Settings
-> Stream
, Click Copy
button to copy the Primary Stream key
, which is your Stream Key
.
And then paste it into the Stream Key
in your Kazam preferences window.
(Do not use the keys displayed above which are invalid. Use your own ones, please.)
Login https://studio.youtube.com/ with your account and find the Go live
icon as below (it should be on the right side of the page below your account avatar):
Or you can click Create
and then Go live
at the top right side of the page.
You will be directed to this page below:
You can find your Stream Key
and Stream URL
as above. Copy-paste them into your Kazam Preferences window's YouTube Live Settings section, then you can close the window and go to Kazam
main window, click Broadcast
and select Fullscreen
, Window
or Area
to start live broadcasting.
If you encounter a bug or any kind of unexpected behavior, please try to reproduce it while running Kazam from a standard terminal with the --debug
option. Please report bugs at https://github.com/henrywoo/kazam/issues and include the generated output.
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