Struct VideoTextureManager 

pub struct VideoTextureManager { /* private fields */ }

Manages video textures for multiple streams.

This manager tracks active video streams and their associated GPU textures. It provides methods to update textures with new frame data and retrieve cached textures for rendering.

Example

use canvas_renderer::video::{VideoTextureManager, VideoFrameData};

let mut manager = VideoTextureManager::new();

// Update a video stream with new frame data
let frame = VideoFrameData::placeholder(640, 480).expect("valid dimensions");
manager.update_texture("stream-1", &frame);

// Check if texture exists
if manager.has_texture("stream-1") {
    // Render the video element
}

Implementations

impl VideoTextureManager

pub fn new() -> Self

Create a new video texture manager.

pub fn update_texture(&mut self, stream_id: &str, frame: &VideoFrameData)

Update or create a video texture for a stream.

This method records the texture metadata. The actual GPU texture upload is handled by the wgpu backend using the frame data.

pub fn get_texture(&self, stream_id: &str) -> Option<&VideoTextureEntry>

Get texture metadata for a stream.

pub fn has_texture(&self, stream_id: &str) -> bool

Check if a texture exists for a stream.

pub fn remove_texture(&mut self, stream_id: &str) -> bool

Remove a video texture from the cache.

Call this when a video stream ends or the element is removed.

pub fn clear(&mut self)

Clear all video textures.

pub fn texture_count(&self) -> usize

Get the number of cached video textures.

pub fn stream_ids(&self) -> impl Iterator<Item = &str>

Get an iterator over all stream IDs.

pub fn frame_counter(&self) -> u64

Get the current frame counter.

Trait Implementations

impl Debug for VideoTextureManager

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for VideoTextureManager

fn default() -> VideoTextureManager

Returns the “default value” for a type.