mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer-rs.git
synced 2024-12-26 01:50:33 +00:00
Add Bus / Tokio example
This commit is contained in:
Sebastian Dröge
parent
03285a6311
commit
db1f0f7bfb
3 changed files with 252 additions and 0 deletions
159
Cargo.lock
generated
159
Cargo.lock
generated
|
|
@ -29,6 +29,20 @@ name = "bitflags"
|
|||
version = "0.9.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "byteorder"
|
||||
version = "1.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "bytes"
|
||||
version = "0.4.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"byteorder 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"iovec 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "c_vec"
|
||||
version = "1.2.1"
|
||||
|
|
@ -57,15 +71,27 @@ dependencies = [
|
|||
"winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "cfg-if"
|
||||
version = "0.1.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "examples"
|
||||
version = "0.1.0"
|
||||
dependencies = [
|
||||
"futures 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"glib 0.1.3 (git+https://github.com/gtk-rs/glib)",
|
||||
"gstreamer 0.1.0",
|
||||
"gtk 0.1.3 (git+https://github.com/gtk-rs/gtk)",
|
||||
"tokio-core 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "futures"
|
||||
version = "0.1.14"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "gdk"
|
||||
version = "0.5.3"
|
||||
|
|
@ -235,16 +261,83 @@ dependencies = [
|
|||
"pkg-config 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "iovec"
|
||||
version = "0.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"libc 0.2.28 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "kernel32-sys"
|
||||
version = "0.2.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "lazy_static"
|
||||
version = "0.2.8"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "lazycell"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "libc"
|
||||
version = "0.2.28"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "log"
|
||||
version = "0.3.8"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "mio"
|
||||
version = "0.6.9"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"iovec 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"lazycell 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"libc 0.2.28 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"net2 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"slab 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "miow"
|
||||
version = "0.2.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"net2 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "net2"
|
||||
version = "0.2.30"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"libc 0.2.28 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "num-integer"
|
||||
version = "0.1.35"
|
||||
|
|
@ -297,17 +390,70 @@ name = "pkg-config"
|
|||
version = "0.3.9"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "scoped-tls"
|
||||
version = "0.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "slab"
|
||||
version = "0.3.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "tokio-core"
|
||||
version = "0.1.9"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"bytes 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"futures 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"iovec 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"mio 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"scoped-tls 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"slab 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"tokio-io 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "tokio-io"
|
||||
version = "0.1.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"bytes 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"futures 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi"
|
||||
version = "0.2.8"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "winapi-build"
|
||||
version = "0.1.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
|
||||
name = "ws2_32-sys"
|
||||
version = "0.2.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[metadata]
|
||||
"checksum atk-sys 0.3.4 (git+https://github.com/gtk-rs/sys)" = "<none>"
|
||||
"checksum bitflags 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4efd02e230a02e18f92fc2735f44597385ed02ad8f831e7c1c1156ee5e1ab3a5"
|
||||
"checksum byteorder 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ff81738b726f5d099632ceaffe7fb65b90212e8dce59d518729e7e8634032d3d"
|
||||
"checksum bytes 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "8b24f16593f445422331a5eed46b72f7f171f910fead4f2ea8f17e727e9c5c14"
|
||||
"checksum c_vec 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "6237ac5a4b1e81c213c24c6437964c61e646df910a914b4ab1487b46df20bd13"
|
||||
"checksum cairo-rs 0.1.3 (git+https://github.com/gtk-rs/cairo)" = "<none>"
|
||||
"checksum cairo-sys-rs 0.3.4 (git+https://github.com/gtk-rs/cairo)" = "<none>"
|
||||
"checksum cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "d4c819a1287eb618df47cc647173c5c4c66ba19d888a6e50d605672aed3140de"
|
||||
"checksum futures 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "4b63a4792d4f8f686defe3b39b92127fea6344de5d38202b2ee5a11bbbf29d6a"
|
||||
"checksum gdk 0.5.3 (git+https://github.com/gtk-rs/gdk)" = "<none>"
|
||||
"checksum gdk-pixbuf 0.1.3 (git+https://github.com/gtk-rs/gdk-pixbuf)" = "<none>"
|
||||
"checksum gdk-pixbuf-sys 0.3.4 (git+https://github.com/gtk-rs/sys)" = "<none>"
|
||||
|
|
@ -320,12 +466,25 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
|
|||
"checksum gstreamer-sys 0.1.1 (git+https://github.com/sdroege/gstreamer-sys)" = "<none>"
|
||||
"checksum gtk 0.1.3 (git+https://github.com/gtk-rs/gtk)" = "<none>"
|
||||
"checksum gtk-sys 0.3.4 (git+https://github.com/gtk-rs/sys)" = "<none>"
|
||||
"checksum iovec 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "29d062ee61fccdf25be172e70f34c9f6efc597e1fb8f6526e8437b2046ab26be"
|
||||
"checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
|
||||
"checksum lazy_static 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "3b37545ab726dd833ec6420aaba8231c5b320814b9029ad585555d2a03e94fbf"
|
||||
"checksum lazycell 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ce12306c4739d86ee97c23139f3a34ddf0387bbf181bc7929d287025a8c3ef6b"
|
||||
"checksum libc 0.2.28 (registry+https://github.com/rust-lang/crates.io-index)" = "bb7b49972ee23d8aa1026c365a5b440ba08e35075f18c459980c7395c221ec48"
|
||||
"checksum log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "880f77541efa6e5cc74e76910c9884d9859683118839d6a1dc3b11e63512565b"
|
||||
"checksum mio 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)" = "9e965267d4d58496fc4f740e9861118367f13570cadf66316ed2c3f2f14d87c7"
|
||||
"checksum miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8c1f2f3b1cf331de6896aabf6e9d55dca90356cc9960cca7eaaf408a355ae919"
|
||||
"checksum net2 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)" = "94101fd932816f97eb9a5116f6c1a11511a1fed7db21c5ccd823b2dc11abf566"
|
||||
"checksum num-integer 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)" = "d1452e8b06e448a07f0e6ebb0bb1d92b8890eea63288c0b627331d53514d0fba"
|
||||
"checksum num-rational 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)" = "288629c76fac4b33556f4b7ab57ba21ae202da65ba8b77466e6d598e31990790"
|
||||
"checksum num-traits 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)" = "99843c856d68d8b4313b03a17e33c4bb42ae8f6610ea81b28abe076ac721b9b0"
|
||||
"checksum pango 0.1.3 (git+https://github.com/gtk-rs/pango)" = "<none>"
|
||||
"checksum pango-sys 0.3.4 (git+https://github.com/gtk-rs/sys)" = "<none>"
|
||||
"checksum pkg-config 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "3a8b4c6b8165cd1a1cd4b9b120978131389f64bdaf456435caa41e630edba903"
|
||||
"checksum scoped-tls 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f417c22df063e9450888a7561788e9bd46d3bb3c1466435b4eccb903807f147d"
|
||||
"checksum slab 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "17b4fcaed89ab08ef143da37bc52adbcc04d4a69014f4c1208d6b51f0c47bc23"
|
||||
"checksum tokio-core 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "e85d419699ec4b71bfe35bbc25bb8771e52eff0471a7f75c853ad06e200b4f86"
|
||||
"checksum tokio-io 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c2c3ce9739f7387a0fa65b5421e81feae92e04d603f008898f4257790ce8c2db"
|
||||
"checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
|
||||
"checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
|
||||
"checksum ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d59cefebd0c892fa2dd6de581e937301d8552cb44489cdff035c6187cb63fa5e"
|
||||
|
|
|
|||
|
|
@ -7,4 +7,6 @@ authors = ["Sebastian Dröge <sebastian@centricular.com>"]
|
|||
glib = { version = "0.1.3", git = "https://github.com/gtk-rs/glib" }
|
||||
gstreamer = { path = "../gstreamer" }
|
||||
gtk = { version = "0.1.3", git = "https://github.com/gtk-rs/gtk" }
|
||||
futures = "0.1"
|
||||
tokio-core = "0.1"
|
||||
|
||||
|
|
|
|||
91
examples/src/bin/tokio.rs
Normal file
91
examples/src/bin/tokio.rs
Normal file
|
|
@ -0,0 +1,91 @@
|
|||
extern crate gstreamer as gst;
|
||||
use gst::*;
|
||||
|
||||
extern crate futures;
|
||||
use futures::{Async, Poll};
|
||||
use futures::task::Task;
|
||||
use futures::stream::Stream;
|
||||
extern crate tokio_core;
|
||||
use tokio_core::reactor::Core;
|
||||
|
||||
use std::env;
|
||||
use std::sync::{Arc, Mutex};
|
||||
|
||||
struct BusStream(Bus, Arc<Mutex<Option<Task>>>);
|
||||
|
||||
impl BusStream {
|
||||
fn new(bus: &Bus) -> Self {
|
||||
let task = Arc::new(Mutex::new(None));
|
||||
let task_clone = task.clone();
|
||||
|
||||
bus.set_sync_handler(move |_, _| {
|
||||
let mut task = task_clone.lock().unwrap();
|
||||
if let Some(task) = task.take() {
|
||||
// FIXME: Force type...
|
||||
let task: Task = task;
|
||||
task.notify();
|
||||
}
|
||||
|
||||
BusSyncReply::Pass
|
||||
});
|
||||
BusStream(bus.clone(), task)
|
||||
}
|
||||
}
|
||||
|
||||
impl Stream for BusStream {
|
||||
type Item = Message;
|
||||
type Error = ();
|
||||
|
||||
fn poll(&mut self) -> Poll<Option<Self::Item>, Self::Error> {
|
||||
let mut task = self.1.lock().unwrap();
|
||||
|
||||
let msg = self.0.pop();
|
||||
if let Some(msg) = msg {
|
||||
Ok(Async::Ready(Some(msg)))
|
||||
} else {
|
||||
*task = Some(futures::task::current());
|
||||
Ok(Async::NotReady)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn main() {
|
||||
let pipeline_str = env::args().collect::<Vec<String>>()[1..].join(" ");
|
||||
|
||||
gst::init().unwrap();
|
||||
|
||||
let mut core = Core::new().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 = BusStream::new(&bus).for_each(|msg| {
|
||||
let quit = match msg.view() {
|
||||
MessageView::Eos(..) => true,
|
||||
MessageView::Error(err) => {
|
||||
println!(
|
||||
"Error from {}: {} ({:?})",
|
||||
msg.get_src().get_path_string(),
|
||||
err.get_error(),
|
||||
err.get_debug()
|
||||
);
|
||||
true
|
||||
}
|
||||
_ => false,
|
||||
};
|
||||
|
||||
if quit {
|
||||
Err(())
|
||||
} else {
|
||||
Ok(())
|
||||
}
|
||||
});
|
||||
|
||||
let _ = core.run(messages);
|
||||
|
||||
let ret = pipeline.set_state(gst::State::Null);
|
||||
assert_ne!(ret, gst::StateChangeReturn::Failure);
|
||||
}
|
||||
Loading…
Reference in a new issue