gst-plugins-rs/video/rspng/examples/pngenc.rs
neithanmo d130b29146 video/png: Add PNG encoder element
It can encode raw video formats like Gray8/16, RGB and RGBA and
uses the PNG crate which is a decoding and encoding library in pure Rust
2020-05-15 08:30:32 -06:00

45 lines
1.5 KiB
Rust

// 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();
let bus = pipeline.get_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 {:?}: {} ({:?})",
err.get_src().map(|s| s.get_path_string()),
err.get_error(),
err.get_debug()
);
break;
}
_ => (),
}
}
pipeline
.set_state(gst::State::Null)
.expect("Failed to set pipeline state to null");
}