diff --git a/examples/Cargo.toml b/examples/Cargo.toml index a97b1503c..e6e71cb6c 100644 --- a/examples/Cargo.toml +++ b/examples/Cargo.toml @@ -25,6 +25,9 @@ gst-rtsp = { workspace = true, optional = true } gst-rtsp-server = { workspace = true, optional = true } gst-allocators = { workspace = true, optional = true } gst-d3d12 = { workspace = true, optional = true } +gst-vulkan = { workspace = true, optional = true } +gst-vulkan-wayland = { workspace = true, optional = true } +gst-vulkan-xcb = { workspace = true, optional = true } gio = { workspace = true, optional = true } anyhow = "1.0" byte-slice-cast = "1" @@ -81,6 +84,9 @@ gst-gl-egl = ["dep:gst-gl-egl", "glutin-winit?/egl", "glutin-winit?/x11", "gluti allocators = ["gst-allocators", "memmap2", "memfd", "uds"] windows = ["dep:windows"] d3d12 = ["dep:gst-d3d12", "windows"] +vulkan = ["dep:gst-vulkan", "gst-vulkan/v1_26"] +gst-vulkan-xcb = ["vulkan", "dep:gst-vulkan-xcb"] +gst-vulkan-wayland = ["vulkan", "dep:gst-vulkan-wayland"] [[bin]] name = "appsink" @@ -228,3 +234,7 @@ required-features = ["gst-video/v1_18"] [[bin]] name = "d3d12convert" required-features = ["d3d12"] + +[[bin]] +name = "vulkanfilter" +required-features = ["vulkan", "gst-vulkan/v1_26_4"] diff --git a/examples/src/bin/vulkanfilter.rs b/examples/src/bin/vulkanfilter.rs new file mode 100644 index 000000000..7406f82e9 --- /dev/null +++ b/examples/src/bin/vulkanfilter.rs @@ -0,0 +1,587 @@ +#![allow(clippy::non_send_fields_in_send_ty)] + +use anyhow::Error; +use derive_more::{Display, Error}; +use gst::prelude::*; + +#[path = "../examples-common.rs"] +pub mod examples_common; + +#[derive(Debug, Display, Error)] +#[display("Received error from {src}: {error} (debug: {debug:?})")] +struct ErrorMessage { + src: glib::GString, + error: glib::Error, + debug: Option, +} + +mod mirror { + use gst_base::subclass::*; + use gst_vulkan::prelude::*; + use gst_vulkan::subclass::prelude::*; + use std::sync::LazyLock; + + pub static CAT: LazyLock = LazyLock::new(|| { + gst::DebugCategory::new( + "rsvulkanmirrorfilter", + gst::DebugColorFlags::empty(), + Some("Rust Vulkan Mirror Filter"), + ) + }); + + glib::wrapper! { + pub struct VulkanMirrorFilter(ObjectSubclass) @extends gst_vulkan::VulkanVideoFilter, gst_base::BaseTransform, gst::Element, gst::Object; + } + + impl VulkanMirrorFilter { + pub fn new(name: Option<&str>) -> Self { + glib::Object::builder().property("name", name).build() + } + } + + mod imp { + use super::*; + + use std::sync::{Arc, Mutex}; + + static FRAGMENT_SPIRV: [u8; 2240] = [ + 0x03, 0x02, 0x23, 0x07, 0x00, 0x00, 0x01, 0x00, 0x0b, 0x00, 0x0d, 0x00, 0x23, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x00, + 0x0b, 0x00, 0x06, 0x00, 0x02, 0x00, 0x00, 0x00, 0x47, 0x4c, 0x53, 0x4c, 0x2e, 0x73, + 0x74, 0x64, 0x2e, 0x34, 0x35, 0x30, 0x00, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x03, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x0f, 0x00, 0x07, 0x00, 0x04, 0x00, + 0x00, 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0x05, 0x00, + 0x14, 0x00, 0x00, 0x00, 0x15, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x00, 0x00, 0x10, 0x00, + 0x00, 0x00, 0x3e, 0x00, 0x03, 0x00, 0x15, 0x00, 0x00, 0x00, 0x13, 0x00, 0x00, 0x00, + 0x08, 0x00, 0x04, 0x00, 0x01, 0x00, 0x00, 0x00, 0x1d, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x3d, 0x00, 0x04, 0x00, 0x16, 0x00, 0x00, 0x00, 0x1b, 0x00, 0x00, 0x00, + 0x1a, 0x00, 0x00, 0x00, 0x3e, 0x00, 0x03, 0x00, 0x18, 0x00, 0x00, 0x00, 0x1b, 0x00, + 0x00, 0x00, 0xfd, 0x00, 0x01, 0x00, 0x38, 0x00, 0x01, 0x00, + ]; + + /// Private data consists of the transformation shader which is compiled + /// in advance to running the actual filter. + #[derive(Default)] + pub struct VulkanMirrorFilter { + state: Arc>, + } + + #[derive(Debug, Default)] + struct State { + render: Option, + } + + // See `subclass.rs` for general documentation on creating a subclass. Extended + // information like element metadata have been omitted for brevity. + #[glib::object_subclass] + impl ObjectSubclass for VulkanMirrorFilter { + const NAME: &'static str = "RsVulkanMirrorFilter"; + type Type = super::VulkanMirrorFilter; + type ParentType = gst_vulkan::VulkanVideoFilter; + } + + impl ElementImpl for VulkanMirrorFilter { + fn pad_templates() -> &'static [gst::PadTemplate] { + static PAD_TEMPLATES: std::sync::OnceLock> = + std::sync::OnceLock::new(); + + PAD_TEMPLATES.get_or_init(|| { + let caps = gst::Caps::builder_full() + .structure_with_features( + gst::Structure::builder("video/x-raw") + .field("format", gst::List::new(["BGRA", "RGBA"])) + .field("width", gst::IntRange::new(1, i32::MAX)) + .field("height", gst::IntRange::new(1, i32::MAX)) + .build(), + gst_vulkan::CAPS_FEATURES_MEMORY_VULKAN_IMAGE.clone(), + ) + .build(); + vec![ + gst::PadTemplate::new( + "src", + gst::PadDirection::Src, + gst::PadPresence::Always, + &caps, + ) + .unwrap(), + gst::PadTemplate::new( + "sink", + gst::PadDirection::Sink, + gst::PadPresence::Always, + &caps, + ) + .unwrap(), + ] + }) + } + } + impl GstObjectImpl for VulkanMirrorFilter {} + impl ObjectImpl for VulkanMirrorFilter {} + impl VulkanVideoFilterImpl for VulkanMirrorFilter {} + impl BaseTransformImpl for VulkanMirrorFilter { + const MODE: BaseTransformMode = BaseTransformMode::NeverInPlace; + const PASSTHROUGH_ON_SAME_CAPS: bool = false; + const TRANSFORM_IP_ON_PASSTHROUGH: bool = false; + + fn start(&self) -> Result<(), gst::ErrorMessage> { + self.parent_start()?; + + let queue = self.obj().queue().ok_or_else(|| { + gst::error_msg!(gst::ResourceError::NotFound, ("No Vulkan Queue!")) + })?; + let device = queue.device().ok_or_else(|| { + gst::error_msg!(gst::ResourceError::NotFound, ("No Vulkan Device!")) + })?; + let render = gst_vulkan::VulkanFullScreenQuad::new(&queue); + let vertex = device.create_shader(VERTEX_SPIRV).map_err(|e| { + gst::error_msg!( + gst::ResourceError::NotFound, + ("Vertex shader creation failed {e:?}") + ) + })?; + let fragment = device.create_shader(FRAGMENT_SPIRV).map_err(|e| { + gst::error_msg!( + gst::ResourceError::NotFound, + ("Fragment shader creation failed {e:?}") + ) + })?; + if !render.set_shaders(&vertex, &fragment) { + return Err(gst::error_msg!( + gst::ResourceError::Failed, + ("Failed to set shaders") + )); + } + let mut state = self.state.lock().unwrap(); + state.render = Some(render); + Ok(()) + } + + fn stop(&self) -> Result<(), gst::ErrorMessage> { + self.parent_stop()?; + + let mut state = self.state.lock().unwrap(); + state.render = None; + Ok(()) + } + + fn set_caps( + &self, + input: &gst::Caps, + output: &gst::Caps, + ) -> Result<(), gst::LoggableError> { + self.parent_set_caps(input, output) + .map_err(|_| gst::loggable_error!(CAT, "parent failed set_caps"))?; + + let state = self.state.lock().unwrap(); + let render = state + .render + .as_ref() + .ok_or_else(|| gst::loggable_error!(CAT, "No internal renderer!"))?; + let in_info = gst_video::VideoInfo::from_caps(input) + .map_err(|_| gst::loggable_error!(CAT, "Failed to parse input caps"))?; + let out_info = gst_video::VideoInfo::from_caps(input) + .map_err(|_| gst::loggable_error!(CAT, "Failed to parse output caps"))?; + if !render.set_info(&in_info, &out_info) { + return Err(gst::loggable_error!(CAT, "Failed to set caps on renderer")); + } + Ok(()) + } + + fn transform( + &self, + inbuf: &gst::Buffer, + outbuf: &mut gst::BufferRef, + ) -> Result { + gst::info!(CAT, "start transform"); + let mut state = self.state.lock().unwrap(); + let render = state.render.as_mut().ok_or(gst::FlowError::Error)?; + render + .set_input_buffer(Some(inbuf)) + .map_err(|_| gst::FlowError::Error)?; + gst::info!(CAT, "start draw"); + render.draw_into_output(outbuf).map_err(|e| { + gst::error!(CAT, "Failed to render output: {e:?}"); + gst::FlowError::Error + })?; + gst::info!(CAT, "done success"); + Ok(gst::FlowSuccess::Ok) + } + } + } +} + +fn create_pipeline() -> Result { + gst::init().unwrap(); + + let pipeline = gst::Pipeline::new(); + let src = gst::ElementFactory::make("videotestsrc").build()?; + let upload = gst::ElementFactory::make("vulkanupload").build()?; + let vulkanfilter = mirror::VulkanMirrorFilter::new(Some("Mirror filter")); + let sink = gst::ElementFactory::make("vulkansink").build()?; + + pipeline.add_many([&src, &upload, vulkanfilter.upcast_ref(), &sink])?; + gst::Element::link_many([&src, &upload, vulkanfilter.upcast_ref(), &sink])?; + + pipeline.set_state(gst::State::Playing)?; + + Ok(pipeline) +} + +fn main_loop(pipeline: gst::Pipeline) -> Result<(), Error> { + pipeline.set_state(gst::State::Playing)?; + + let bus = pipeline + .bus() + .expect("Pipeline without bus. Shouldn't happen!"); + + for msg in bus.iter_timed(gst::ClockTime::NONE) { + use gst::MessageView; + + match msg.view() { + MessageView::Eos(..) => break, + MessageView::Error(err) => { + pipeline.set_state(gst::State::Null)?; + return Err(ErrorMessage { + src: msg + .src() + .map(|s| s.path_string()) + .unwrap_or_else(|| glib::GString::from("UNKNOWN")), + error: err.error(), + debug: err.debug(), + } + .into()); + } + _ => (), + } + } + + pipeline.set_state(gst::State::Null)?; + + Ok(()) +} + +fn example_main() { + match create_pipeline().and_then(main_loop) { + Ok(r) => r, + Err(e) => eprintln!("Error! {e}"), + } +} + +fn main() { + examples_common::run(example_main) +}