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Add README.md to gstreamer-gl

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Víctor Manuel Jáquez Leal 2019-01-16 19:45:45 +01:00
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# NOTE: The canonical repository for gstreamer-rs has moved to [freedesktop.org GitLab](https://gitlab.freedesktop.org/gstreamer/gstreamer-rs)!
# gstreamer-rs [![crates.io](https://img.shields.io/crates/v/gstreamer-gl.svg)](https://crates.io/crates/gstreamer-gl) [![pipeline status](https://gitlab.freedesktop.org/gstreamer/gstreamer-rs/badges/master/pipeline.svg)](https://gitlab.freedesktop.org/gstreamer/gstreamer-rs/commits/master)
[GStreamer](https://gstreamer.freedesktop.org/) (OpenGL library)
bindings for Rust. Documentation can be found
[here](https://slomo.pages.freedesktop.org/rustdocs/gstreamer/gstreamer_gl/).
These bindings are providing a safe API that can be used to interface with
GStreamer, e.g. for writing GStreamer-based applications and GStreamer plugins.
The bindings are mostly autogenerated with [gir](https://github.com/gtk-rs/gir/)
based on the [GObject-Introspection](https://wiki.gnome.org/Projects/GObjectIntrospection/)
API metadata provided by the GStreamer project.
## Table of Contents
1. [Installation](#installation)
1. [Linux/BSDs](#installation-linux)
1. [macOS](#installation-macos)
1. [Windows](#installation-windows)
1. [Getting Started](#getting-started)
1. [License](#license)
1. [Contribution](#contribution)
<a name="installation"/>
## Installation
To build the GStreamer bindings or anything depending on them, you
need to have at least GStreamer 1.14 and gst-plugins-base 1.14
installed. In addition, some of the examples/tutorials require various
GStreamer plugins to be available, which can be found in
gst-plugins-base, gst-plugins-good, gst-plugins-bad, gst-plugins-ugly
and/or gst-libav.
<a name="installation-linux"/>
### Linux/BSDs
You need to install the above mentioned packages with your distributions
package manager, or build them from source.
On Debian/Ubuntu they can be installed with
```
$ apt-get install libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev \
gstreamer1.0-plugins-base gstreamer1.0-plugins-good \
gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly \
gstreamer1.0-libav libgstrtspserver-1.0-dev
```
The minimum required version of the above libraries is >= 1.14. See
the `Cargo.toml` files for the full details,
Package names on other distributions should be similar.
Please submit a pull request with instructions for yours.
<a name="installation-macos"/>
### macOS
You can install GStreamer and the plugins via [Homebrew](https://brew.sh/) or
by installing the [binaries](https://gstreamer.freedesktop.org/data/pkg/osx/)
provided by the GStreamer project.
#### Homebrew
Homebrew only installs various plugins if explicitly enabled, so some extra
`--with-*` flags may be required.
```
$ brew install gstreamer gst-plugins-base gst-plugins-good \
gst-plugins-bad gst-plugins-ugly gst-libav gst-rtsp-server \
gst-editing-services --with-orc --with-libogg --with-opus \
--with-pango --with-theora --with-libvorbis --with-libvpx \
--enable-gtk3
```
Please, make sure the version of these libraries is >= 1.14.
#### GStreamer Binaries
You need to download the *two* `.pkg` files from the GStreamer website and
install them, e.g. `gstreamer-1.0-1.14.4-x86_64.pkg` and
`gstreamer-1.0-devel-1.14.4-x86_64.pkg`.
After installation, you also need to install `pkg-config` (e.g. via Homebrew)
and set the `PKG_CONFIG_PATH` environment variable
```
$ export PKG_CONFIG_PATH="/Library/Frameworks/GStreamer.framework/Versions/Current/lib/pkgconfig${PKG_CONFIG_PATH:+:$PKG_CONFIG_PATH}"
```
<a name="installation-windows"/>
### Windows
You can install GStreamer and the plugins via [MSYS2](http://www.msys2.org/)
with `pacman` or by installing the
[binaries](https://gstreamer.freedesktop.org/data/pkg/windows/) provided by
the GStreamer project.
#### MSYS2 / pacman
```
$ pacman -S pkg-config mingw-w64-x86_64-gstreamer mingw-w64-x86_64-gst-plugins-base \
mingw-w64-x86_64-gst-plugins-good mingw-w64-x86_64-gst-plugins-bad \
mingw-w64-x86_64-gst-plugins-ugly mingw-w64-x86_64-gst-libav \
mingw-w64-x86_64-gst-rtsp-server
```
Please, make sure the version of these libraries is >= 1.14.
#### GStreamer Binaries
You need to download the *two* `.msi` files for your platform from the
GStreamer website and install them, e.g. `gstreamer-1.0-x86_64-1.14.4.msi` and
`gstreamer-1.0-devel-x86_64-1.14.4.msi`.
After installation, you also need to install `pkg-config` (e.g. via MSYS2 or
from [here](https://sourceforge.net/projects/pkgconfiglite/))
and set the `PKG_CONFIG_PATH` environment variable
```
$ export PKG_CONFIG_PATH="c:\\gstreamer\\1.0\\x86_64\\lib\\pkgconfig${PKG_CONFIG_PATH:+:$PKG_CONFIG_PATH}"
```
<a name="getting-started"/>
## Getting Started
The API reference can be found
[here](https://slomo.pages.freedesktop.org/rustdocs/gstreamer/gstreamer/), however it is
only the Rust API reference and does not explain any of the concepts.
For getting started with GStreamer development, the best would be to follow
the [documentation](https://gstreamer.freedesktop.org/documentation/) on the
GStreamer website, especially the [Application Development
Manual](https://gstreamer.freedesktop.org/documentation/application-development/).
While being C-centric, it explains all the fundamental concepts of GStreamer
and the code examples should be relatively easily translatable to Rust. The
API is basically the same, function/struct names are the same and everything
is only more convenient (hopefully) and safer.
In addition there are
[tutorials](https://gstreamer.freedesktop.org/documentation/tutorials/) on the
GStreamer website. Many of them were ported to Rust already and the code can
be found in the
[tutorials](https://gitlab.freedesktop.org/gstreamer/gstreamer-rs/tree/master/tutorials)
directory.
Some further examples for various aspects of GStreamer and how to use it from
Rust can be found in the
[examples](https://gitlab.freedesktop.org/gstreamer/gstreamer-rs/tree/master/examples)
directory.
Various GStreamer plugins written in Rust can be found in the
[gst-plugins-rs](https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs)
repository.
<a name="license"/>
## LICENSE
gstreamer-rs and all crates contained in here are licensed under either of
* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
http://www.apache.org/licenses/LICENSE-2.0)
* MIT license ([LICENSE-MIT](LICENSE-MIT) or
http://opensource.org/licenses/MIT)
at your option.
GStreamer itself is licensed under the Lesser General Public License version
2.1 or (at your option) any later version:
https://www.gnu.org/licenses/lgpl-2.1.html
<a name="contribution"/>
## Contribution
Any kinds of contributions are welcome as a pull request.
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in gstreamer-rs by you, as defined in the Apache-2.0 license, shall be
dual licensed as above, without any additional terms or conditions.