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gtk4: Implement support for directly importing dmabufs

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Fixes https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/issues/441

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1547>
This commit is contained in:
Sebastian Dröge 2024-04-20 23:19:20 +03:00
parent 7573caa8e9
commit c92462b240
9 changed files with 519 additions and 163 deletions
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25
Cargo.lock generated
View file

@ -2454,6 +2454,7 @@ dependencies = [
"gdk4-x11",
"gst-plugin-version-helper",
"gstreamer",
"gstreamer-allocators",
"gstreamer-base",
"gstreamer-gl",
"gstreamer-gl-egl",
@ -3059,6 +3060,30 @@ dependencies = [
"thiserror",
]
[[package]]
name = "gstreamer-allocators"
version = "0.23.0"
source = "git+https://gitlab.freedesktop.org/gstreamer/gstreamer-rs?branch=main#e117010bc001f87551713c528bf3abff5c9848ae"
dependencies = [
"glib",
"gstreamer",
"gstreamer-allocators-sys",
"libc",
"once_cell",
]
[[package]]
name = "gstreamer-allocators-sys"
version = "0.23.0"
source = "git+https://gitlab.freedesktop.org/gstreamer/gstreamer-rs?branch=main#e117010bc001f87551713c528bf3abff5c9848ae"
dependencies = [
"glib-sys",
"gobject-sys",
"gstreamer-sys",
"libc",
"system-deps",
]
[[package]]
name = "gstreamer-app"
version = "0.23.0"

1
Cargo.toml
View file

@ -134,6 +134,7 @@ gdk-wayland = { package = "gdk4-wayland", git = "https://github.com/gtk-rs/gtk4-
gdk-x11 = { package = "gdk4-x11", git = "https://github.com/gtk-rs/gtk4-rs", branch = "master"}
gdk-win32 = { package = "gdk4-win32", git = "https://github.com/gtk-rs/gtk4-rs", branch = "master"}
gst = { package = "gstreamer", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs", branch = "main" }
gst-allocators = { package = "gstreamer-allocators", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs", branch = "main" }
gst-app = { package = "gstreamer-app", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs", branch = "main" }
gst-audio = { package = "gstreamer-audio", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs", branch = "main" }
gst-base = { package = "gstreamer-base", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs", branch = "main" }

2
docs/plugins/gst_plugins_cache.json
View file

@ -2476,7 +2476,7 @@
"long-name": "GTK 4 Paintable Sink",
"pad-templates": {
"sink": {
"caps": "video/x-raw:\n format: { BGRA, ARGB, RGBA, ABGR, RGB, BGR }\n width: [ 1, 2147483647 ]\n height: [ 1, 2147483647 ]\n framerate: [ 0/1, 2147483647/1 ]\n\nvideo/x-raw(memory:GLMemory, meta:GstVideoOverlayComposition):\n format: { RGBA, RGB }\n width: [ 1, 2147483647 ]\n height: [ 1, 2147483647 ]\n framerate: [ 0/1, 2147483647/1 ]\n texture-target: 2D\n\nvideo/x-raw(memory:GLMemory):\n format: { RGBA, RGB }\n width: [ 1, 2147483647 ]\n height: [ 1, 2147483647 ]\n framerate: [ 0/1, 2147483647/1 ]\n texture-target: 2D\n\nvideo/x-raw(memory:SystemMemory, meta:GstVideoOverlayComposition):\n format: { BGRA, ARGB, RGBA, ABGR, RGB, BGR }\n width: [ 1, 2147483647 ]\n height: [ 1, 2147483647 ]\n framerate: [ 0/1, 2147483647/1 ]\n\nvideo/x-raw(meta:GstVideoOverlayComposition):\n format: { BGRA, ARGB, RGBA, ABGR, RGB, BGR }\n width: [ 1, 2147483647 ]\n height: [ 1, 2147483647 ]\n framerate: [ 0/1, 2147483647/1 ]\n",
"caps": "video/x-raw(memory:GLMemory, meta:GstVideoOverlayComposition):\n format: { RGBA, RGB }\n width: [ 1, 2147483647 ]\n height: [ 1, 2147483647 ]\n framerate: [ 0/1, 2147483647/1 ]\n texture-target: 2D\n\nvideo/x-raw(memory:GLMemory):\n format: { RGBA, RGB }\n width: [ 1, 2147483647 ]\n height: [ 1, 2147483647 ]\n framerate: [ 0/1, 2147483647/1 ]\n texture-target: 2D\n\nvideo/x-raw(memory:SystemMemory, meta:GstVideoOverlayComposition):\n format: { BGRA, ARGB, RGBA, ABGR, RGB, BGR }\n width: [ 1, 2147483647 ]\n height: [ 1, 2147483647 ]\n framerate: [ 0/1, 2147483647/1 ]\n\nvideo/x-raw(meta:GstVideoOverlayComposition):\n format: { BGRA, ARGB, RGBA, ABGR, RGB, BGR }\n width: [ 1, 2147483647 ]\n height: [ 1, 2147483647 ]\n framerate: [ 0/1, 2147483647/1 ]\nvideo/x-raw:\n format: { BGRA, ARGB, RGBA, ABGR, RGB, BGR }\n width: [ 1, 2147483647 ]\n height: [ 1, 2147483647 ]\n framerate: [ 0/1, 2147483647/1 ]\n",
"direction": "sink",
"presence": "always"
}

2
video/gtk4/Cargo.toml
View file

@ -17,6 +17,7 @@ gst = { workspace = true, features = ["v1_16"] }
gst-base.workspace = true
gst-video.workspace = true
gst-gl = { workspace = true, features = ["v1_16"], optional = true }
gst-allocators = { workspace = true, features = ["v1_24"], optional = true }
gst-gl-wayland = { workspace = true, features = ["v1_16"], optional = true }
gst-gl-x11 = { workspace = true, features = ["v1_16"], optional = true }
@ -50,6 +51,7 @@ wayland = ["gtk/v4_6", "gdk-wayland", "gst-gl", "gst-gl-wayland"]
x11glx = ["gtk/v4_6", "gdk-x11", "gst-gl", "gst-gl-x11"]
x11egl = ["gtk/v4_6", "gdk-x11", "gst-gl", "gst-gl-egl"]
winegl = ["gdk-win32/egl", "gst-gl-egl"]
dmabuf = ["gst-allocators", "wayland", "gtk_v4_14", "gst-video/v1_24"]
capi = []
doc = ["gst/v1_18"]
gtk_v4_10 = ["gtk/v4_10"]

25
video/gtk4/examples/gtksink.rs
View file

@ -6,13 +6,6 @@ use gtk::{gdk, gio, glib};
use std::cell::RefCell;
fn create_ui(app: &gtk::Application) {
let window = gtk::ApplicationWindow::new(app);
window.set_default_size(640, 480);
let vbox = gtk::Box::new(gtk::Orientation::Vertical, 0);
let picture = gtk::Picture::new();
let label = gtk::Label::new(Some("Position: 00:00:00"));
let pipeline = gst::Pipeline::new();
let overlay = gst::ElementFactory::make("clockoverlay")
@ -64,8 +57,26 @@ fn create_ui(app: &gtk::Application) {
src.link_filtered(&overlay, &caps).unwrap();
overlay.link(&sink).unwrap();
let window = gtk::ApplicationWindow::new(app);
window.set_default_size(640, 480);
let vbox = gtk::Box::new(gtk::Orientation::Vertical, 0);
let picture = gtk::Picture::new();
picture.set_paintable(Some(&paintable));
#[cfg(feature = "gtk_v4_14")]
{
let offload = gtk::GraphicsOffload::new(Some(&picture));
offload.set_enabled(gtk::GraphicsOffloadEnabled::Enabled);
vbox.append(&offload);
}
#[cfg(not(feature = "gtk_v4_14"))]
{
vbox.append(&picture);
}
let label = gtk::Label::new(Some("Position: 00:00:00"));
vbox.append(&label);
window.set_child(Some(&vbox));

261
video/gtk4/src/sink/frame.rs
View file

@ -14,7 +14,61 @@ use gst_video::prelude::*;
#[cfg(any(target_os = "macos", target_os = "windows", feature = "gst-gl"))]
use gst_gl::prelude::*;
use gtk::{gdk, glib};
use std::collections::{HashMap, HashSet};
use std::{
collections::{HashMap, HashSet},
ops,
};
#[derive(Clone, PartialEq, Eq, Debug)]
pub enum VideoInfo {
VideoInfo(gst_video::VideoInfo),
#[cfg(all(target_os = "linux", feature = "dmabuf"))]
DmaDrm(gst_video::VideoInfoDmaDrm),
}
impl From<gst_video::VideoInfo> for VideoInfo {
fn from(v: gst_video::VideoInfo) -> Self {
VideoInfo::VideoInfo(v)
}
}
#[cfg(all(target_os = "linux", feature = "dmabuf"))]
impl From<gst_video::VideoInfoDmaDrm> for VideoInfo {
fn from(v: gst_video::VideoInfoDmaDrm) -> Self {
VideoInfo::DmaDrm(v)
}
}
impl ops::Deref for VideoInfo {
type Target = gst_video::VideoInfo;
fn deref(&self) -> &Self::Target {
match self {
VideoInfo::VideoInfo(info) => info,
#[cfg(all(target_os = "linux", feature = "dmabuf"))]
VideoInfo::DmaDrm(info) => info,
}
}
}
impl VideoInfo {
#[cfg(all(target_os = "linux", feature = "dmabuf"))]
fn dma_drm(&self) -> Option<&gst_video::VideoInfoDmaDrm> {
match self {
VideoInfo::VideoInfo(..) => None,
VideoInfo::DmaDrm(info) => Some(info),
}
}
}
#[derive(Debug, PartialEq, Eq, Hash)]
pub enum TextureCacheId {
Memory(usize),
#[cfg(any(target_os = "macos", target_os = "windows", feature = "gst-gl"))]
GL(usize),
#[cfg(all(target_os = "linux", feature = "dmabuf"))]
DmaBuf([i32; 4]),
}
#[derive(Debug)]
enum MappedFrame {
@ -24,6 +78,17 @@ enum MappedFrame {
frame: gst_gl::GLVideoFrame<gst_gl::gl_video_frame::Readable>,
wrapped_context: gst_gl::GLContext,
},
#[cfg(all(target_os = "linux", feature = "dmabuf"))]
DmaBuf {
buffer: gst::Buffer,
info: gst_video::VideoInfoDmaDrm,
n_planes: u32,
fds: [i32; 4],
offsets: [usize; 4],
strides: [usize; 4],
width: u32,
height: u32,
},
}
impl MappedFrame {
@ -32,6 +97,8 @@ impl MappedFrame {
MappedFrame::SysMem(frame) => frame.buffer(),
#[cfg(any(target_os = "macos", target_os = "windows", feature = "gst-gl"))]
MappedFrame::GL { frame, .. } => frame.buffer(),
#[cfg(all(target_os = "linux", feature = "dmabuf"))]
MappedFrame::DmaBuf { buffer, .. } => buffer,
}
}
@ -40,6 +107,8 @@ impl MappedFrame {
MappedFrame::SysMem(frame) => frame.width(),
#[cfg(any(target_os = "macos", target_os = "windows", feature = "gst-gl"))]
MappedFrame::GL { frame, .. } => frame.width(),
#[cfg(all(target_os = "linux", feature = "dmabuf"))]
MappedFrame::DmaBuf { info, .. } => info.width(),
}
}
@ -48,6 +117,8 @@ impl MappedFrame {
MappedFrame::SysMem(frame) => frame.height(),
#[cfg(any(target_os = "macos", target_os = "windows", feature = "gst-gl"))]
MappedFrame::GL { frame, .. } => frame.height(),
#[cfg(all(target_os = "linux", feature = "dmabuf"))]
MappedFrame::DmaBuf { info, .. } => info.height(),
}
}
@ -56,6 +127,8 @@ impl MappedFrame {
MappedFrame::SysMem(frame) => frame.format_info(),
#[cfg(any(target_os = "macos", target_os = "windows", feature = "gst-gl"))]
MappedFrame::GL { frame, .. } => frame.format_info(),
#[cfg(all(target_os = "linux", feature = "dmabuf"))]
MappedFrame::DmaBuf { info, .. } => info.format_info(),
}
}
}
@ -108,16 +181,16 @@ fn video_format_to_memory_format(f: gst_video::VideoFormat) -> gdk::MemoryFormat
fn video_frame_to_memory_texture(
frame: gst_video::VideoFrame<gst_video::video_frame::Readable>,
cached_textures: &mut HashMap<usize, gdk::Texture>,
used_textures: &mut HashSet<usize>,
cached_textures: &mut HashMap<TextureCacheId, gdk::Texture>,
used_textures: &mut HashSet<TextureCacheId>,
) -> (gdk::Texture, f64) {
let texture_id = frame.plane_data(0).unwrap().as_ptr() as usize;
let ptr = frame.plane_data(0).unwrap().as_ptr() as usize;
let pixel_aspect_ratio =
(frame.info().par().numer() as f64) / (frame.info().par().denom() as f64);
if let Some(texture) = cached_textures.get(&texture_id) {
used_textures.insert(texture_id);
if let Some(texture) = cached_textures.get(&TextureCacheId::Memory(ptr)) {
used_textures.insert(TextureCacheId::Memory(ptr));
return (texture.clone(), pixel_aspect_ratio);
}
@ -135,8 +208,8 @@ fn video_frame_to_memory_texture(
)
.upcast::<gdk::Texture>();
cached_textures.insert(texture_id, texture.clone());
used_textures.insert(texture_id);
cached_textures.insert(TextureCacheId::Memory(ptr), texture.clone());
used_textures.insert(TextureCacheId::Memory(ptr));
(texture, pixel_aspect_ratio)
}
@ -144,8 +217,8 @@ fn video_frame_to_memory_texture(
#[cfg(any(target_os = "macos", target_os = "windows", feature = "gst-gl"))]
fn video_frame_to_gl_texture(
frame: gst_gl::GLVideoFrame<gst_gl::gl_video_frame::Readable>,
cached_textures: &mut HashMap<usize, gdk::Texture>,
used_textures: &mut HashSet<usize>,
cached_textures: &mut HashMap<TextureCacheId, gdk::Texture>,
used_textures: &mut HashSet<TextureCacheId>,
gdk_context: &gdk::GLContext,
#[allow(unused)] wrapped_context: &gst_gl::GLContext,
) -> (gdk::Texture, f64) {
@ -154,8 +227,8 @@ fn video_frame_to_gl_texture(
let pixel_aspect_ratio =
(frame.info().par().numer() as f64) / (frame.info().par().denom() as f64);
if let Some(texture) = cached_textures.get(&(texture_id)) {
used_textures.insert(texture_id);
if let Some(texture) = cached_textures.get(&TextureCacheId::GL(texture_id)) {
used_textures.insert(TextureCacheId::GL(texture_id));
return (texture.clone(), pixel_aspect_ratio);
}
@ -237,18 +310,64 @@ fn video_frame_to_gl_texture(
.upcast::<gdk::Texture>()
};
cached_textures.insert(texture_id, texture.clone());
used_textures.insert(texture_id);
cached_textures.insert(TextureCacheId::GL(texture_id), texture.clone());
used_textures.insert(TextureCacheId::GL(texture_id));
(texture, pixel_aspect_ratio)
}
#[cfg(all(target_os = "linux", feature = "dmabuf"))]
#[allow(clippy::too_many_arguments)]
fn video_frame_to_dmabuf_texture(
buffer: gst::Buffer,
cached_textures: &mut HashMap<TextureCacheId, gdk::Texture>,
used_textures: &mut HashSet<TextureCacheId>,
info: &gst_video::VideoInfoDmaDrm,
n_planes: u32,
fds: &[i32; 4],
offsets: &[usize; 4],
strides: &[usize; 4],
width: u32,
height: u32,
) -> Result<(gdk::Texture, f64), glib::Error> {
let pixel_aspect_ratio = (info.par().numer() as f64) / (info.par().denom() as f64);
if let Some(texture) = cached_textures.get(&TextureCacheId::DmaBuf(*fds)) {
used_textures.insert(TextureCacheId::DmaBuf(*fds));
return Ok((texture.clone(), pixel_aspect_ratio));
}
let builder = gdk::DmabufTextureBuilder::new();
builder.set_display(&gdk::Display::default().unwrap());
builder.set_fourcc(info.fourcc());
builder.set_modifier(info.modifier());
builder.set_width(width);
builder.set_height(height);
builder.set_n_planes(n_planes);
for plane in 0..(n_planes as usize) {
builder.set_fd(plane as u32, fds[plane]);
builder.set_offset(plane as u32, offsets[plane] as u32);
builder.set_stride(plane as u32, strides[plane] as u32);
}
let texture = unsafe {
builder.build_with_release_func(move || {
drop(buffer);
})?
};
cached_textures.insert(TextureCacheId::DmaBuf(*fds), texture.clone());
used_textures.insert(TextureCacheId::DmaBuf(*fds));
Ok((texture, pixel_aspect_ratio))
}
impl Frame {
pub(crate) fn into_textures(
self,
#[allow(unused_variables)] gdk_context: Option<&gdk::GLContext>,
cached_textures: &mut HashMap<usize, gdk::Texture>,
) -> Vec<Texture> {
cached_textures: &mut HashMap<TextureCacheId, gdk::Texture>,
) -> Result<Vec<Texture>, glib::Error> {
let mut textures = Vec::with_capacity(1 + self.overlays.len());
let mut used_textures = HashSet::with_capacity(1 + self.overlays.len());
@ -278,6 +397,28 @@ impl Frame {
&wrapped_context,
)
}
#[cfg(all(target_os = "linux", feature = "dmabuf"))]
MappedFrame::DmaBuf {
buffer,
info,
n_planes,
fds,
offsets,
strides,
width,
height,
} => video_frame_to_dmabuf_texture(
buffer,
cached_textures,
&mut used_textures,
&info,
n_planes,
&fds,
&offsets,
&strides,
width,
height,
)?,
};
textures.push(Texture {
@ -309,14 +450,14 @@ impl Frame {
// Remove textures that were not used this time
cached_textures.retain(|id, _| used_textures.contains(id));
textures
Ok(textures)
}
}
impl Frame {
pub(crate) fn new(
buffer: &gst::Buffer,
info: &gst_video::VideoInfo,
info: &VideoInfo,
#[cfg(any(target_os = "macos", target_os = "windows", feature = "gst-gl"))] wrapped_context: Option<
&gst_gl::GLContext,
>,
@ -327,20 +468,66 @@ impl Frame {
// Empty buffers get filtered out in show_frame
debug_assert!(buffer.n_memory() > 0);
let mut frame;
#[allow(unused_mut)]
let mut frame = None;
#[cfg(not(any(target_os = "macos", target_os = "windows", feature = "gst-gl")))]
#[cfg(all(target_os = "linux", feature = "dmabuf"))]
{
frame = Self {
frame: MappedFrame::SysMem(
gst_video::VideoFrame::from_buffer_readable(buffer.clone(), info)
.map_err(|_| gst::FlowError::Error)?,
),
overlays: vec![],
// Check we received a buffer with dmabuf memory and if so do some checks before
// passing it onwards
if frame.is_none()
&& buffer
.peek_memory(0)
.is_memory_type::<gst_allocators::DmaBufMemory>()
{
if let Some((vmeta, info)) =
Option::zip(buffer.meta::<gst_video::VideoMeta>(), info.dma_drm())
{
let mut fds = [-1i32; 4];
let mut offsets = [0; 4];
let mut strides = [0; 4];
let n_planes = vmeta.n_planes() as usize;
let vmeta_offsets = vmeta.offset();
let vmeta_strides = vmeta.stride();
for plane in 0..n_planes {
let Some((range, skip)) =
buffer.find_memory(vmeta_offsets[plane]..(vmeta_offsets[plane] + 1))
else {
break;
};
let mem = buffer.peek_memory(range.start);
let Some(mem) = mem.downcast_memory_ref::<gst_allocators::DmaBufMemory>()
else {
break;
};
let fd = mem.fd();
fds[plane] = fd;
offsets[plane] = mem.offset() + skip;
strides[plane] = vmeta_strides[plane] as usize;
}
// All fds valid?
if fds[0..n_planes].iter().all(|fd| *fd != -1) {
frame = Some(MappedFrame::DmaBuf {
buffer: buffer.clone(),
info: info.clone(),
n_planes: n_planes as u32,
fds,
offsets,
strides,
width: vmeta.width(),
height: vmeta.height(),
});
}
}
}
#[cfg(any(target_os = "macos", target_os = "windows", feature = "gst-gl"))]
{
if frame.is_none() {
// Check we received a buffer with GL memory and if the context of that memory
// can share with the wrapped context around the GDK GL context.
//
@ -381,23 +568,25 @@ impl Frame {
let meta = mapped_frame.buffer().meta::<gst_gl::GLSyncMeta>().unwrap();
meta.set_sync_point(memory_ctx);
frame = Self {
frame: MappedFrame::GL {
frame = Some(MappedFrame::GL {
frame: mapped_frame,
wrapped_context: wrapped_context.unwrap().clone(),
},
overlays: vec![],
};
} else {
frame = Self {
frame: MappedFrame::SysMem(
});
}
}
}
}
let mut frame = Self {
frame: match frame {
Some(frame) => frame,
None => MappedFrame::SysMem(
gst_video::VideoFrame::from_buffer_readable(buffer.clone(), info)
.map_err(|_| gst::FlowError::Error)?,
),
},
overlays: vec![],
};
}
}
frame.overlays = frame
.frame

156
video/gtk4/src/sink/imp.rs
View file

@ -1,7 +1,7 @@
//
// Copyright (C) 2021 Bilal Elmoussaoui <bil.elmoussaoui@gmail.com>
// Copyright (C) 2021 Jordan Petridis <jordan@centricular.com>
// Copyright (C) 2021 Sebastian Dröge <sebastian@centricular.com>
// Copyright (C) 2021-2024 Sebastian Dröge <sebastian@centricular.com>
//
// This Source Code Form is subject to the terms of the Mozilla Public License, v2.0.
// If a copy of the MPL was not distributed with this file, You can obtain one at
@ -62,7 +62,7 @@ pub(crate) static CAT: Lazy<gst::DebugCategory> = Lazy::new(|| {
pub struct PaintableSink {
paintable: Mutex<Option<ThreadGuard<Paintable>>>,
window: Mutex<Option<ThreadGuard<gtk::Window>>>,
info: Mutex<Option<gst_video::VideoInfo>>,
info: Mutex<Option<super::frame::VideoInfo>>,
sender: Mutex<Option<async_channel::Sender<SinkEvent>>>,
pending_frame: Mutex<Option<Frame>>,
cached_caps: Mutex<Option<gst::Caps>>,
@ -163,21 +163,45 @@ impl ElementImpl for PaintableSink {
{
let caps = caps.get_mut().unwrap();
#[cfg(all(target_os = "linux", feature = "dmabuf"))]
{
for features in [
[
gst_allocators::CAPS_FEATURE_MEMORY_DMABUF,
gst_video::CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
]
.as_slice(),
[gst_allocators::CAPS_FEATURE_MEMORY_DMABUF].as_slice(),
] {
let c = gst_video::VideoCapsBuilder::new()
.format(gst_video::VideoFormat::DmaDrm)
.features(features.iter().copied())
.build();
caps.append(c);
}
}
for features in [
None,
#[cfg(any(target_os = "macos", target_os = "windows", feature = "gst-gl"))]
Some(gst::CapsFeatures::new([
"memory:GLMemory",
"meta:GstVideoOverlayComposition",
gst_gl::CAPS_FEATURE_MEMORY_GL_MEMORY,
gst_video::CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
])),
#[cfg(any(target_os = "macos", target_os = "windows", feature = "gst-gl"))]
Some(gst::CapsFeatures::new(["memory:GLMemory"])),
Some(gst::CapsFeatures::new([
gst_gl::CAPS_FEATURE_MEMORY_GL_MEMORY,
])),
Some(gst::CapsFeatures::new([
"memory:SystemMemory",
"meta:GstVideoOverlayComposition",
gst_video::CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
])),
Some(gst::CapsFeatures::new(["meta:GstVideoOverlayComposition"])),
Some(gst::CapsFeatures::new([
gst_video::CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
])),
None,
] {
#[cfg(any(target_os = "macos", target_os = "windows", feature = "gst-gl"))]
{
const GL_FORMATS: &[gst_video::VideoFormat] =
&[gst_video::VideoFormat::Rgba, gst_video::VideoFormat::Rgb];
const NON_GL_FORMATS: &[gst_video::VideoFormat] = &[
@ -189,10 +213,9 @@ impl ElementImpl for PaintableSink {
gst_video::VideoFormat::Bgr,
];
let formats = if features
.as_ref()
.is_some_and(|features| features.contains("memory:GLMemory"))
{
let formats = if features.as_ref().is_some_and(|features| {
features.contains(gst_gl::CAPS_FEATURE_MEMORY_GL_MEMORY)
}) {
GL_FORMATS
} else {
NON_GL_FORMATS
@ -203,14 +226,37 @@ impl ElementImpl for PaintableSink {
if let Some(features) = features {
let c = c.get_mut().unwrap();
if features.contains("memory:GLMemory") {
if features.contains(gst_gl::CAPS_FEATURE_MEMORY_GL_MEMORY) {
c.set("texture-target", "2D")
}
c.set_features_simple(Some(features));
}
caps.append(c);
}
#[cfg(not(any(
target_os = "macos",
target_os = "windows",
feature = "gst-gl"
)))]
{
const FORMATS: &[gst_video::VideoFormat] = &[
gst_video::VideoFormat::Bgra,
gst_video::VideoFormat::Argb,
gst_video::VideoFormat::Rgba,
gst_video::VideoFormat::Abgr,
gst_video::VideoFormat::Rgb,
gst_video::VideoFormat::Bgr,
];
let mut c = gst_video::video_make_raw_caps(FORMATS).build();
if let Some(features) = features {
let c = c.get_mut().unwrap();
c.set_features_simple(Some(features));
}
caps.append(c);
}
}
}
vec![gst::PadTemplate::new(
@ -361,8 +407,21 @@ impl BaseSinkImpl for PaintableSink {
fn set_caps(&self, caps: &gst::Caps) -> Result<(), gst::LoggableError> {
gst::debug!(CAT, imp: self, "Setting caps {caps:?}");
let video_info = gst_video::VideoInfo::from_caps(caps)
.map_err(|_| gst::loggable_error!(CAT, "Invalid caps"))?;
#[allow(unused_mut)]
let mut video_info = None;
#[cfg(all(target_os = "linux", feature = "dmabuf"))]
{
if let Ok(info) = gst_video::VideoInfoDmaDrm::from_caps(caps) {
video_info = Some(info.into());
}
}
let video_info = match video_info {
Some(info) => info,
None => gst_video::VideoInfo::from_caps(caps)
.map_err(|_| gst::loggable_error!(CAT, "Invalid caps"))?
.into(),
};
self.info.lock().unwrap().replace(video_info);
@ -516,10 +575,11 @@ impl PaintableSink {
match action {
SinkEvent::FrameChanged => {
let Some(frame) = self.pending_frame() else {
return glib::ControlFlow::Continue;
};
gst::trace!(CAT, imp: self, "Frame changed");
paintable
.get_ref()
.handle_frame_changed(self.pending_frame())
paintable.get_ref().handle_frame_changed(&self.obj(), frame);
}
}
@ -530,13 +590,59 @@ impl PaintableSink {
#[allow(unused_mut)]
let mut tmp_caps = Self::pad_templates()[0].caps().clone();
#[cfg(all(target_os = "linux", feature = "dmabuf"))]
{
let formats = utils::invoke_on_main_thread(move || {
let Some(display) = gdk::Display::default() else {
return vec![];
};
let dmabuf_formats = display.dmabuf_formats();
let mut formats = vec![];
let n_formats = dmabuf_formats.n_formats();
for i in 0..n_formats {
let (fourcc, modifier) = dmabuf_formats.format(i);
if fourcc == 0 || modifier == (u64::MAX >> 8) {
continue;
}
formats.push(gst_video::dma_drm_fourcc_to_string(fourcc, modifier));
}
formats
});
if formats.is_empty() {
// Filter out dmabufs caps from the template pads if we have no supported formats
if !matches!(&*GL_CONTEXT.lock().unwrap(), GLContext::Initialized { .. }) {
tmp_caps = tmp_caps
.iter_with_features()
.filter(|(_, features)| {
!features.contains(gst_allocators::CAPS_FEATURE_MEMORY_DMABUF)
})
.map(|(s, c)| (s.to_owned(), c.to_owned()))
.collect::<gst::Caps>();
}
} else {
let tmp_caps = tmp_caps.make_mut();
for (s, f) in tmp_caps.iter_with_features_mut() {
if f.contains(gst_allocators::CAPS_FEATURE_MEMORY_DMABUF) {
s.set("drm-format", gst::List::new(&formats));
}
}
}
}
#[cfg(any(target_os = "macos", target_os = "windows", feature = "gst-gl"))]
{
// Filter out GL caps from the template pads if we have no context
if !matches!(&*GL_CONTEXT.lock().unwrap(), GLContext::Initialized { .. }) {
tmp_caps = tmp_caps
.iter_with_features()
.filter(|(_, features)| !features.contains("memory:GLMemory"))
.filter(|(_, features)| {
!features.contains(gst_gl::CAPS_FEATURE_MEMORY_GL_MEMORY)
})
.map(|(s, c)| (s.to_owned(), c.to_owned()))
.collect::<gst::Caps>();
}
@ -564,7 +670,17 @@ impl PaintableSink {
let window = gtk::Window::new();
let picture = gtk::Picture::new();
picture.set_paintable(Some(&paintable));
#[cfg(feature = "gtk_v4_14")]
{
let offload = gtk::GraphicsOffload::new(Some(&picture));
offload.set_enabled(gtk::GraphicsOffloadEnabled::Enabled);
window.set_child(Some(&offload));
}
#[cfg(not(feature = "gtk_v4_14"))]
{
window.set_child(Some(&picture));
}
window.set_default_size(640, 480);
window.connect_close_request({

24
video/gtk4/src/sink/paintable/imp.rs
View file

@ -31,7 +31,7 @@ static CAT: Lazy<gst::DebugCategory> = Lazy::new(|| {
#[derive(Debug)]
pub struct Paintable {
paintables: RefCell<Vec<Texture>>,
cached_textures: RefCell<HashMap<usize, gdk::Texture>>,
cached_textures: RefCell<HashMap<super::super::frame::TextureCacheId, gdk::Texture>>,
gl_context: RefCell<Option<gdk::GLContext>>,
background_color: Cell<gdk::RGBA>,
#[cfg(feature = "gtk_v4_10")]
@ -197,12 +197,14 @@ impl PaintableImpl for Paintable {
((frame_height as f64 * scale_y) - (frame_height as f64 * scale_x)) / 2.0;
scale_y = scale_x;
}
}
if !background_color.is_clear() {
snapshot.append_color(
&background_color,
&graphene::Rect::new(0f32, 0f32, width as f32, height as f32),
);
}
}
snapshot.translate(&graphene::Point::new(trans_x as f32, trans_y as f32));
@ -331,13 +333,24 @@ impl PaintableImpl for Paintable {
}
impl Paintable {
pub(super) fn handle_frame_changed(&self, frame: Option<Frame>) {
pub(super) fn handle_frame_changed(&self, sink: &crate::PaintableSink, frame: Frame) {
let context = self.gl_context.borrow();
if let Some(frame) = frame {
gst::trace!(CAT, imp: self, "Received new frame");
let new_paintables =
frame.into_textures(context.as_ref(), &mut self.cached_textures.borrow_mut());
match frame.into_textures(context.as_ref(), &mut self.cached_textures.borrow_mut()) {
Ok(textures) => textures,
Err(err) => {
gst::element_error!(
sink,
gst::ResourceError::Failed,
["Failed to transform frame into textures: {err}"]
);
return;
}
};
let new_size = new_paintables
.first()
.map(|p| (f32::round(p.width) as u32, f32::round(p.height) as u32))
@ -359,7 +372,6 @@ impl Paintable {
self.obj().invalidate_contents();
}
}
pub(super) fn handle_flush_frames(&self) {
gst::debug!(CAT, imp: self, "Flushing frames");

4
video/gtk4/src/sink/paintable/mod.rs
View file

@ -30,8 +30,8 @@ impl Paintable {
}
impl Paintable {
pub(crate) fn handle_frame_changed(&self, frame: Option<Frame>) {
self.imp().handle_frame_changed(frame);
pub(crate) fn handle_frame_changed(&self, sink: &crate::PaintableSink, frame: Frame) {
self.imp().handle_frame_changed(sink, frame);
}
pub(crate) fn handle_flush_frames(&self) {