Struct GstreamerPipeStream 

pub struct GstreamerPipeStream {
    child: Child,
    width: u32,
    height: u32,
    frame_rate: f32,
    frame_count: Option<u64>,
    next_index: u64,
    frame_buffer: Vec<u8>,
}

Streams BGRA frames from a video file by piping it through gst-launch-1.0.

Fields

child: Child

width: u32

height: u32

frame_rate: f32

frame_count: Option<u64>

next_index: u64

frame_buffer: Vec<u8>

Pre-sized buffer — width * height * 4 bytes, reused per frame.

Implementations

impl GstreamerPipeStream

pub fn probe(path: &Path) -> Result<VideoMetadata>

Probe path with gst-discoverer-1.0 and return the metadata, without starting a decode.

pub fn open(path: &Path) -> Result<Self>

Open path for streaming decode. Spawns gst-launch-1.0 immediately; frames are pulled via VideoStream::next_frame.

Trait Implementations

impl Drop for GstreamerPipeStream

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.

impl VideoStream for GstreamerPipeStream

fn width(&self) -> u32

Frame width in pixels. Constant across the stream.

fn height(&self) -> u32

Frame height in pixels. Constant across the stream.

fn frame_rate(&self) -> f32

Source frame rate (frames per second). Used by the player loop to time uploads; backends without a known fixed rate may return their nominal rate (e.g. AVFoundation’s nominalFrameRate on the track).

fn frame_count_hint(&self) -> Option<u64>

Total frame count, if known up-front. None for live streams.

fn next_frame(&mut self) -> Option<VideoFrame>

Pull the next frame. Returns None at end-of-stream.