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// yt - A fully featured command line YouTube client
//
// Copyright (C) 2024 Benedikt Peetz <benedikt.peetz@b-peetz.de>
// SPDX-License-Identifier: GPL-3.0-or-later
//
// This file is part of Yt.
//
// You should have received a copy of the License along with this program.
// If not, see <https://www.gnu.org/licenses/gpl-3.0.txt>.
use libmpv2::{events::*, mpv_node::MpvNode, *};
use std::{collections::HashMap, env, thread, time::Duration};
const VIDEO_URL: &str = "https://www.youtube.com/watch?v=VLnWf1sQkjY";
fn main() -> Result<()> {
let path = env::args()
.nth(1)
.unwrap_or_else(|| String::from(VIDEO_URL));
// Create an `Mpv` and set some properties.
let mpv = Mpv::with_initializer(|init| {
init.set_property("vo", "null")?;
Ok(())
})
.unwrap();
mpv.set_property("volume", 15)?;
let mut ev_ctx = EventContext::new(mpv.ctx);
ev_ctx.disable_deprecated_events()?;
ev_ctx.observe_property("volume", Format::Int64, 0)?;
ev_ctx.observe_property("demuxer-cache-state", Format::Node, 0)?;
crossbeam::scope(|scope| {
scope.spawn(|_| {
mpv.command("loadfile", &[&path, "append-play"]).unwrap();
thread::sleep(Duration::from_secs(3));
mpv.set_property("volume", 25).unwrap();
thread::sleep(Duration::from_secs(5));
// Trigger `Event::EndFile`.
mpv.command("playlist-next", &["force"]).unwrap();
});
scope.spawn(move |_| loop {
let ev = ev_ctx.wait_event(600.).unwrap_or(Err(Error::Null));
match ev {
Ok(Event::EndFile(r)) => {
println!("Exiting! Reason: {:?}", r);
break;
}
Ok(Event::PropertyChange {
name: "demuxer-cache-state",
change: PropertyData::Node(mpv_node),
..
}) => {
let ranges = seekable_ranges(mpv_node);
println!("Seekable ranges updated: {:?}", ranges);
}
Ok(e) => println!("Event triggered: {:?}", e),
Err(e) => println!("Event errored: {:?}", e),
}
});
})
.unwrap();
Ok(())
}
fn seekable_ranges(demuxer_cache_state: MpvNode) -> Vec<(f64, f64)> {
let mut res = Vec::new();
let props = demuxer_cache_state
.map()
.unwrap()
.collect::<HashMap<_, _>>();
let ranges = props
.get("seekable-ranges")
.unwrap()
.clone()
.array()
.unwrap();
for node in ranges {
let range = node.map().unwrap().collect::<HashMap<_, _>>();
let start = range.get("start").unwrap().f64().unwrap();
let end = range.get("end").unwrap().f64().unwrap();
res.push((start, end));
}
res
}
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