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GTK 4.0.1 发布

We all took a bit of a break after 4.0 and did some other things, but now it is time for GTK 4.0.1.

This is the first release after 4.0, and it naturally contains a lot of small bug fixes,  theme and documentation improvements, and the like. But there are a few highlights that are worth pointing out.

Better media support

Among the bigger advances in this release: we managed to make the gstreamer media backend use GL textures, which avoids bouncing frame data between gpu and cpu when using hardware acceleration for decoding, such as vaapi. This requires careful orchestration to bridge the differences in how gstreamer and GTK treat GL, but we managed to make it work in many cases.

Does this mean GtkVideo is now ready to support fully-featured media player applications? Far from it. It still just lets you play media from a file or url, and does not support multi-channel audio, video overlays, device selection, input, and other things that you probably want in a media player.

It would be really nice if somebody took the code in the GTK media backend and turned it inside out to make a GStreamer plugin with a sink that exposes its video frames as GdkPaintable. That would let you use gstreamer API to get all of the aforementioned features, while still integrating smoothly in GTK.

Better CI

In order to keep our new MacOS backend in working shape, we’ve started to set up CI builds for this platform, both for GTK itself, and for its dependencies (pango, gdk-pixbuf).

转自 https://blog.gtk.org/2021/01/12/gtk-4-0-1/

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