Is it possible to use GESPipeline to emit rtp stream?

Question

I'm new to gstreamer and I'm trying to make a video editing tool that can be previewed with webrtc stream.

I'm using gstreamer-rs, and I can create a pipeline with emits rtp stream by using normal Gst::Pipeline, but with GESPipeline I can't do the same thing.

I tried following code but get Message { ptr: 0x12682f600, type: "error", seqnum: 970, src: Some("internal-sinks"), structure: Some(GstMessageError, gerror=(GError)NULL, debug=(string)"../gst/playback/gstplaysink.c\(2032\):\ gen_video_chain\ \(\):\ /GESPipeline:gespipeline0/GstPlaySink:internal-sinks:\012Failed\ to\ configure\ the\ video\ sink.";) } error.

#[tokio::main]
async fn main() {
    gstreamer_editing_services::init().unwrap();

    let timeline = Timeline::new_audio_video();
    let layer = timeline.append_layer();
    let uri = filename_to_uri("/Users/itome/Downloads/sea-cafinet.mp4", None).unwrap();
    let clip = UriClip::new(&uri).unwrap();
    layer.add_clip(&clip).unwrap();

    let pipeline = Pipeline::new();
    pipeline.set_timeline(&timeline).unwrap();

    let enc = ElementFactory::make("vp8enc", None).unwrap();
    let pay = ElementFactory::make("rtpvp8pay", None).unwrap();
    let appsink = ElementFactory::make("appsink", Some(&"app")).unwrap();

    let bin = Bin::new(None);
    bin.add_many(&[&enc, &pay, &appsink]).unwrap();
    enc.link(&pay).unwrap();
    pay.link(&appsink).unwrap();

    pipeline.preview_set_video_sink(&bin);

    // Start playing
    pipeline
        .set_state(State::Playing)
        .expect("Unable to set the pipeline to the `Playing` state");

    // Wait until error or EOS
    let bus = pipeline.bus().unwrap();
    for msg in bus.iter_timed(ClockTime::NONE) {
        println!("{:?}", msg);
        match msg.view() {
            MessageView::Eos(..) => {
                break;
            }
            MessageView::Error(err) => {
                println!("Error from: {} ({:?})", err.error(), err.debug());
                break;
            }
            _ => (),
        }
    }

    // Shutdown pipeline
    pipeline
        .set_state(State::Null)
        .expect("Unable to set the pipeline to the `Null` state");
}

Is there any way to make GESPipeline work with rtp elements?

Is it possible to use GESPipeline to emit rtp stream?

0 Answers0