mirror of https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs.git synced 2024-06-01 07:08:17 +00:00

History

Sebastian Dröge 803550111a gtk4: Improve handling of RGBA GL textures in GTK GTK 4.14 comes with a new GL renderer that does not support GL shader nodes anymore, so the conversion from non-premultiplied alpha to premultiplied alpha has to happen differently. For GTK 4.14 or newer we use the correct format directly when building the texture, but only if a GLES3+ context is used. In that case the NGL renderer is used by GTK, which supports non-premultiplied formats correctly and fast. For GTK 4.10-4.12, or 4.14 and newer if a GLES2 context is used, we use a self-mask to pre-multiply the alpha. For GTK before 4.10, we use a GL shader and hope that it works. Fixes https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/issues/488 Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1452>		2024-02-08 12:35:26 +02:00
..
examples	Use let-else instead of match for weak reference upgrades	2023-10-30 11:34:35 +02:00
src	gtk4: Improve handling of RGBA GL textures in GTK	2024-02-08 12:35:26 +02:00
build.rs	Add a GTK4 paintable sink plugin	2021-10-13 12:28:51 +03:00
Cargo.toml	gtk4: Improve handling of RGBA GL textures in GTK	2024-02-08 12:35:26 +02:00
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"
            ]
        }
    ]
}