retina/examples/client/metadata.rs
Scott Lamb 1a72fce4de refine TEARDOWN logic
*   by default send a TEARDOWN even if we haven't sent a PLAY.
*   make the behavior more customizable. I want the ability to turn
    teardowns off for testing the live555 bug.
*   deprecate the older teardown method
2021-09-09 21:10:58 -07:00

67 lines
2.0 KiB
Rust

// Copyright (C) 2021 Scott Lamb <slamb@slamb.org>
// SPDX-License-Identifier: MIT OR Apache-2.0
use anyhow::{anyhow, Error};
use futures::StreamExt;
use log::{error, info};
use retina::client::SessionGroup;
use retina::codec::CodecItem;
use std::sync::Arc;
#[derive(structopt::StructOpt)]
pub struct Opts {
#[structopt(flatten)]
src: super::Source,
}
pub async fn run(opts: Opts) -> Result<(), Error> {
let session_group = Arc::new(SessionGroup::default());
let r = run_inner(opts, session_group.clone()).await;
if let Err(e) = session_group.await_teardown().await {
error!("TEARDOWN failed: {}", e);
}
r
}
async fn run_inner(opts: Opts, session_group: Arc<SessionGroup>) -> Result<(), Error> {
let stop = tokio::signal::ctrl_c();
let creds = super::creds(opts.src.username, opts.src.password);
let mut session = retina::client::Session::describe(
opts.src.url,
retina::client::SessionOptions::default()
.creds(creds)
.user_agent("Retina metadata example".to_owned())
.session_group(session_group),
)
.await?;
let onvif_stream_i = session
.streams()
.iter()
.position(|s| matches!(s.parameters(), Some(retina::codec::Parameters::Message(..))))
.ok_or_else(|| anyhow!("couldn't find onvif stream"))?;
session.setup(onvif_stream_i).await?;
let mut session = session
.play(retina::client::PlayOptions::default().ignore_zero_seq(true))
.await?
.demuxed()?;
tokio::pin!(stop);
loop {
tokio::select! {
item = session.next() => {
match item.ok_or_else(|| anyhow!("EOF"))?? {
CodecItem::MessageFrame(m) => {
info!("{}: {}\n", &m.timestamp, std::str::from_utf8(&m.data[..]).unwrap());
},
_ => continue,
};
},
_ = &mut stop => {
break;
},
}
}
Ok(())
}