gst-plugins-rs/video/rspng/examples/pngenc.rs

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// Copyright (C) 2020 Natanael Mojica <neithanmo@gmail.com>
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use gst::prelude::*;
const ENCODE_PIPELINE: &str = "videotestsrc is-live=false num-buffers=1 ! videoconvert ! video/x-raw, format=RGB, width=160, height=120 !
rspngenc compression-level=2 filter=4 ! filesink location=frame.png";
fn main() {
gst::init().unwrap();
gstrspng::plugin_register_static().expect("Failed to register gif plugin");
let pipeline = gst::parse_launch(ENCODE_PIPELINE).unwrap();
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let bus = pipeline.bus().unwrap();
pipeline
.set_state(gst::State::Playing)
.expect("Failed to set pipeline state to playing");
for msg in bus.iter_timed(gst::CLOCK_TIME_NONE) {
use gst::MessageView;
match msg.view() {
MessageView::Eos(..) => break,
MessageView::Error(err) => {
println!(
"Error from {:?}: {} ({:?})",
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err.src().map(|s| s.path_string()),
err.error(),
err.debug()
);
break;
}
_ => (),
}
}
pipeline
.set_state(gst::State::Null)
.expect("Failed to set pipeline state to null");
}