Add futures example using the GLib futures executor

This commit is contained in:
Sebastian Dröge 2018-04-23 20:31:27 +03:00
parent 4b4f369200
commit a4c3c7cd76
2 changed files with 69 additions and 0 deletions

View file

@ -30,6 +30,7 @@ gtkvideooverlay = ["gtk", "gdk", "gio"]
gtkvideooverlay-x11 = ["gtkvideooverlay"] gtkvideooverlay-x11 = ["gtkvideooverlay"]
gtkvideooverlay-quartz = ["gtkvideooverlay"] gtkvideooverlay-quartz = ["gtkvideooverlay"]
generic-futures = ["gstreamer/futures", "futures"] generic-futures = ["gstreamer/futures", "futures"]
glib-futures = ["generic-futures", "glib/futures"]
gst-rtsp-server = ["gstreamer-rtsp-server"] gst-rtsp-server = ["gstreamer-rtsp-server"]
gst-rtsp-server-record = ["gstreamer-rtsp-server", "gstreamer-rtsp", "gio"] gst-rtsp-server-record = ["gstreamer-rtsp-server", "gstreamer-rtsp", "gio"]
default-features = [] default-features = []
@ -100,6 +101,11 @@ name = "toc"
name = "futures" name = "futures"
required-features = ["generic-futures"] required-features = ["generic-futures"]
[[bin]]
name = "glib-futures"
required-features = ["glib-futures"]
[[bin]] [[bin]]
name = "rtsp-server-record" name = "rtsp-server-record"
required-features = ["gst-rtsp-server-record"] required-features = ["gst-rtsp-server-record"]

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@ -0,0 +1,63 @@
extern crate gstreamer as gst;
use gst::prelude::*;
extern crate glib;
extern crate futures;
use futures::prelude::*;
use std::env;
#[path = "../examples-common.rs"]
mod examples_common;
fn example_main() {
let ctx = glib::MainContext::default();
let pipeline_str = env::args().collect::<Vec<String>>()[1..].join(" ");
gst::init().unwrap();
let pipeline = gst::parse_launch(&pipeline_str).unwrap();
let bus = pipeline.get_bus().unwrap();
let ret = pipeline.set_state(gst::State::Playing);
assert_ne!(ret, gst::StateChangeReturn::Failure);
let messages = gst::BusStream::new(&bus)
.for_each(|msg| {
use gst::MessageView;
let quit = match msg.view() {
MessageView::Eos(..) => true,
MessageView::Error(err) => {
println!(
"Error from {:?}: {} ({:?})",
err.get_src().map(|s| s.get_path_string()),
err.get_error(),
err.get_debug()
);
true
}
_ => false,
};
if quit {
Err(())
} else {
Ok(())
}
})
.and_then(|_| Ok(()));
let _ = ctx.block_on(messages);
let ret = pipeline.set_state(gst::State::Null);
assert_ne!(ret, gst::StateChangeReturn::Failure);
}
fn main() {
// tutorials_common::run is only required to set up the application environent on macOS
// (but not necessary in normal Cocoa applications where this is set up autmatically)
examples_common::run(example_main);
}