What is GST Libav?

This module contains a GStreamer plugin for using the encoders, decoders, muxers, and demuxers provided by FFmpeg. It is called gst-libav for historical reasons.

What can you do with GStreamer?

GStreamer is a pipeline-based multimedia framework that links together a wide variety of media processing systems to complete complex workflows. For instance, GStreamer can be used to build a system that reads files in one format, processes them, and exports them in another.

How do I stream video with GStreamer?

Stream live video to browser using GStreamer

  1. capture live video from some source e.g. PC camera, remote camera or computer’s screen (we’ll use GStreamer for this)
  2. stream it to dedicated Wowza-like server for additional post-processing (we’ll create a simple media server ourselves using GStreamer and WEB server)

How do I learn gstreamer?

Firstly, I think the best way to learn Gstreamer is to use Community. There are many developers who works for companies like RidgeRun, Samsung, Collabora, Igalia. These companies extensively use Gstreamer in projects for thousands of people and they could help to solve some of your issues.

How do I make Gstreamer for Windows?


  1. Open a Visual Studio x64 command prompt from the Windows start menu: Visual Studio 2019 \ x64 Native Tools Command Prompt.
  2. Run meson on gst-build : > cd %SOURCE_DIR%gst-build > meson –prefix=%GSTREAMER_1_0_ROOT_X86_64% build.

Does OpenCV need GStreamer?

To capture frames using OpenCV with gstreamer backend, you will need to build OpenCV with Gstreamer. Afterwards you will need to pass your apiPreference cv2.

What is Udpsink?

udpsink is a network sink that sends UDP packets to the network. It can be combined with RTP payloaders to implement RTP streaming.

What is v4l2src?

Description. v4l2src can be used to capture video from v4l2 devices, like webcams and tv cards.

How do I use GStreamer on Android?

2 Answers

  1. Import the tutorials using Android Studio’s Import option;
  2. Import the tutorials using Android Studio’s Import option.
  3. Set the Android Studio to use NDK.
  4. Set a variable inside the “Android.mk” file.
  5. Set Gradle compile only some architecture.
  6. Copy the Gstreamer class to the correct path.

Why is the GStreamer plugin called GST-Libav?

It is called gst-libav for historical reasons. GStreamer is developed under the terms of the LGPL-2.1 (see COPYING file for details), and that includes the code in this repository. However, this repository depends on FFmpeg, which can be built in the following modes using various ./configure switches: LGPL-2.1, LGPL-3, GPL, or non-free.

Is there a GST-Libav package for H264?

TY. You might be missing h264 decoder plugin. You can check it with This will list the plugins related with h264. If you don’t have any decoders you’ll want to install gst-libav packages. Thanks for contributing an answer to Stack Overflow!

How to write gst.buffer plugin in Python?

As buffer flows from sink to src we need to override do_transform_ip (for buffer processing in-place) or do_transform (for out-buffer processing and in-buffer remains unchanged) in order to do custom buffer processing and push it to src’s pad. def do_transform_ip (self, buffer: Gst.Buffer) -> Gst.FlowReturn: