gpui-video-player

A video player library for gpui applications, built on top of GStreamer. This library provides efficient video playback with hardware-accelerated rendering on supported platforms.

Installation

GStreamer Dependencies

This library requires GStreamer and its plugins to be installed on your system. Please refer to the GStreamer Rust bindings installation guide for detailed instructions.

Minimum Requirements:

• GStreamer 1.14+
• gst-plugins-base 1.14+
• gst-plugins-good (recommended)
• gst-plugins-bad (recommended for additional codec support)

Adding to Your Project

Add this to your Cargo.toml:

[dependencies]
gpui-video-player = "0.1.0"

Note: This library depends on GPUI, which must be available in your project. The current version requires GPUI from the Zed repository.

Usage

Basic Video Playback

use gpui::{App, Application, Context, Render, Window, WindowOptions, div, prelude::*};
use gpui_video_player::{Video, video};
use std::path::PathBuf;
use url::Url;

struct VideoPlayer {
    video: Video,
}

impl Render for VideoPlayer {
    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
        div()
            .size_full()
            .flex()
            .items_center()
            .justify_center()
            .child(
                video(self.video.clone())
                    .id("main-video")
                    .buffer_capacity(30), // Buffer up to 30 frames
            )
    }
}

fn main() {
    env_logger::init();
    Application::new().run(|cx: &mut App| {
        let uri = Url::from_file_path(
            PathBuf::from("./path/to/your/video.mp4"),
        ).expect("invalid file path");

        cx.open_window(
            WindowOptions {
                focus: true,
                ..Default::default()
            },
            |_, cx| {
                let video = Video::new(&uri).expect("failed to create video");
                cx.new(|_| VideoPlayer { video })
            },
        ).unwrap();
        cx.activate(true);
    });
}

Video Controls

use gpui_video_player::Video;
use std::time::Duration;

// Playback control
video.set_paused(true);  // Pause
video.set_paused(false); // Resume

// Seeking
video.seek(Duration::from_secs(30), false)?; // Seek to 30 seconds

// Volume control
video.set_volume(0.5); // 50% volume
video.set_muted(true); // Mute

// Speed control
video.set_speed(2.0)?; // 2x speed

// Display size
video.set_display_width(Some(800)); // Override width
video.set_display_height(Some(600)); // Override height

Advanced Configuration

use gpui_video_player::{Video, VideoOptions, video};

let options = VideoOptions {
    frame_buffer_capacity: Some(10), // Buffer 10 frames
    looping: Some(true),            // Enable looping
    speed: Some(1.5),               // 1.5x speed
};

let video = Video::new_with_options(&uri, options)?;

Looping Playback Example

use gpui_video_player::{Video, VideoOptions};

let looped_video = Video::new_with_options(
    &uri,
    VideoOptions {
        looping: Some(true),
        ..VideoOptions::default()
    },
)?;

looped_video.set_looping(true);

Call set_looping(true) at runtime whenever you want to ensure the current stream loops.

Custom Video Element

use gpui_video_player::{VideoElement, video};

let video_element = video(my_video)
    .id("custom-video")
    .size(px(640.0), px(480.0))  // Set display size
    .buffer_capacity(5);         // Buffer 5 frames

API Reference

Video

The main video player struct with methods for:

• Playback Control: set_paused(), paused()
• Seeking: seek(), position(), duration()
• Audio: set_volume(), volume(), set_muted(), muted()
• Speed: set_speed(), speed()
• Display: display_size(), set_display_size()
• Frame Access: current_frame_data(), take_frame_ready()

VideoElement

GPUI element for rendering video with:

• Sizing: size(), width(), height()
• Buffering: buffer_capacity()
• Identification: id()

Position

Time or frame-based positioning:

use gpui_video_player::Position;
use std::time::Duration;

let time_pos = Position::Time(Duration::from_secs(10));
let frame_pos = Position::Frame(300);

Examples

Run the included examples to see the library in action:

# Basic video player
cargo run --example video_player

# Video player with controls
cargo run --example with_controls

# Looping playback
cargo run --example looping

Platform Notes

macOS

• Uses CVPixelBuffer for hardware-accelerated rendering when possible
• Falls back to software rendering via GPUI sprite atlas

Linux/Windows

• Uses optimized software rendering via GPUI sprite atlas
• Supports various GStreamer backends

Contributing

Contributions are welcome! Please feel free to submit issues and pull requests.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Credits

This project is inspired by and has referenced code from iced_video_player by @jazzfool.