mirror of https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs.git synced 2024-05-31 22:58:11 +00:00

History

Ivan Molodetskikh c237cf2c34 gtk4: Premultiply alpha in GL textures GTK expects GL textures to have premultiplied alpha. The ones we get from GStreamer don't, leading to incorrect rendering of semitransparent frames. GTK 4.12 gained an API to set a different GL texture format, but it won't help for older GTK versions. Plus, at the time of writing, it causes a very slow download/upload path in GTK. So, use a GTK GL shader node to premultiply the alpha without leaving the GPU. Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1312>		2023-09-20 13:04:59 +03:00
..
examples	Adapt to glib::Continue rename	2023-07-06 17:50:49 +03:00
src	gtk4: Premultiply alpha in GL textures	2023-09-20 13:04:59 +03:00
build.rs	Add a GTK4 paintable sink plugin	2021-10-13 12:28:51 +03:00
Cargo.toml	Update versions to 0.12.0-alpha.1	2023-08-10 17:21:11 +03:00
LICENSE-MPL-2.0	git: replace LICENSE file symlinks with copies	2023-04-04 14:26:37 +01:00
README.md	video/gtk4: Add a flatpak snippet example in the README	2023-02-22 22:15:40 +02:00

README.md

Gtk 4 Sink & Paintable

GTK 4 provides gtk::Video & gtk::Picture for rendering media such as videos. As the default gtk::Video widget doesn't offer the possibility to use a custom gst::Pipeline. The plugin provides a gst_video::VideoSink along with a gdk::Paintable that's capable of rendering the sink's frames.

The Sink can generate GL Textures if the system is capable of it, but it needs to be compiled with either wayland, x11glx or x11egl cargo features.

Flatpak Integration

To build and include the plugin in a Flatpak manifest, you can add the following snippet to your json manifest:

{
    "sdk-extensions": [
        "org.freedesktop.Sdk.Extension.rust-stable"
    ],
    "build-options": {
        "env": {
            "CARGO_HOME": "/run/build/cargo-c/cargo"
        },
        "append-path": "/usr/lib/sdk/rust-stable/bin",
    },
    "modules": [
        {
            "name": "cargo-c",
            "buildsystem": "simple",
            "build-commands": [
                "cargo install cargo-c --root /app"
            ],
            "build-options": {
                "build-args": [
                    "--share=network"
                ]
            },
            "cleanup": [
                "*"
            ]
        },
        {
            "name": "gst-plugins-rs",
            "buildsystem": "simple",
            "sources": [
                {
                    "type": "git",
                    "url": "https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs",
                    "branch": "0.10"
                }
            ],
            "build-options": {
                "build-args": [
                    "--share=network"
                ]
            },
            "build-commands": [
                "cargo cinstall -p gst-plugin-gtk4 --prefix=/app"
            ]
        }
    ]
}