gst-plugins-rs/generic/threadshare/tests/jitterbuffer.rs

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// Copyright (C) 2020 François Laignel <fengalin@free.fr>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this library; if not, write to the
// Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
// Boston, MA 02110-1335, USA.
use gst::gst_debug;
use gst::prelude::*;
use std::sync::mpsc;
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use once_cell::sync::Lazy;
static CAT: Lazy<gst::DebugCategory> = Lazy::new(|| {
gst::DebugCategory::new(
"ts-test",
gst::DebugColorFlags::empty(),
Some("Thread-sharing test"),
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)
});
fn init() {
use std::sync::Once;
static INIT: Once = Once::new();
INIT.call_once(|| {
gst::init().unwrap();
gstthreadshare::plugin_register_static().expect("gstthreadshare jitterbuffer test");
});
}
#[test]
fn jb_pipeline() {
init();
const CONTEXT_WAIT: u32 = 20;
const LATENCY: u32 = 20;
const BUFFER_NB: i32 = 3;
let pipeline = gst::Pipeline::new(None);
let src = gst::ElementFactory::make("audiotestsrc", Some("audiotestsrc")).unwrap();
src.set_property("is-live", &true).unwrap();
src.set_property("num-buffers", &BUFFER_NB).unwrap();
let enc = gst::ElementFactory::make("alawenc", Some("alawenc")).unwrap();
let pay = gst::ElementFactory::make("rtppcmapay", Some("rtppcmapay")).unwrap();
let jb = gst::ElementFactory::make("ts-jitterbuffer", Some("ts-jitterbuffer")).unwrap();
jb.set_property("context", &"jb_pipeline").unwrap();
jb.set_property("context-wait", &CONTEXT_WAIT).unwrap();
jb.set_property("latency", &LATENCY).unwrap();
let depay = gst::ElementFactory::make("rtppcmadepay", Some("rtppcmadepay")).unwrap();
let dec = gst::ElementFactory::make("alawdec", Some("alawdec")).unwrap();
let sink = gst::ElementFactory::make("appsink", Some("appsink")).unwrap();
sink.set_property("sync", &false).unwrap();
sink.set_property("async", &false).unwrap();
sink.set_property("emit-signals", &true).unwrap();
pipeline
.add_many(&[&src, &enc, &pay, &jb, &depay, &dec, &sink])
.unwrap();
gst::Element::link_many(&[&src, &enc, &pay, &jb, &depay, &dec, &sink]).unwrap();
let appsink = sink.dynamic_cast::<gst_app::AppSink>().unwrap();
let (sender, receiver) = mpsc::channel();
appsink.set_callbacks(
gst_app::AppSinkCallbacks::builder()
.new_sample(move |appsink| {
let _sample = appsink
.emit_by_name("pull-sample", &[])
.unwrap()
.unwrap()
.get::<gst::Sample>()
.unwrap();
sender.send(()).unwrap();
Ok(gst::FlowSuccess::Ok)
})
.build(),
);
pipeline.set_state(gst::State::Playing).unwrap();
gst_debug!(CAT, "jb_pipeline: waiting for {} buffers", BUFFER_NB);
for idx in 0..BUFFER_NB {
receiver.recv().unwrap();
gst_debug!(CAT, "jb_pipeline: received buffer #{}", idx);
}
pipeline.set_state(gst::State::Null).unwrap();
}
#[test]
fn jb_ts_pipeline() {
init();
const CONTEXT_WAIT: u32 = 20;
const LATENCY: u32 = 20;
const BUFFER_NB: i32 = 3;
let pipeline = gst::Pipeline::new(None);
let src = gst::ElementFactory::make("audiotestsrc", Some("audiotestsrc")).unwrap();
src.set_property("is-live", &true).unwrap();
src.set_property("num-buffers", &BUFFER_NB).unwrap();
let queue = gst::ElementFactory::make("ts-queue", Some("ts-queue")).unwrap();
queue
.set_property("context", &"jb_ts_pipeline_queue")
.unwrap();
queue.set_property("context-wait", &CONTEXT_WAIT).unwrap();
let enc = gst::ElementFactory::make("alawenc", Some("alawenc")).unwrap();
let pay = gst::ElementFactory::make("rtppcmapay", Some("rtppcmapay")).unwrap();
let jb = gst::ElementFactory::make("ts-jitterbuffer", Some("ts-jitterbuffer")).unwrap();
jb.set_property("context", &"jb_ts_pipeline").unwrap();
jb.set_property("context-wait", &CONTEXT_WAIT).unwrap();
jb.set_property("latency", &LATENCY).unwrap();
let depay = gst::ElementFactory::make("rtppcmadepay", Some("rtppcmadepay")).unwrap();
let dec = gst::ElementFactory::make("alawdec", Some("alawdec")).unwrap();
let sink = gst::ElementFactory::make("appsink", Some("appsink")).unwrap();
sink.set_property("sync", &false).unwrap();
sink.set_property("async", &false).unwrap();
sink.set_property("emit-signals", &true).unwrap();
pipeline
.add_many(&[&src, &queue, &enc, &pay, &jb, &depay, &dec, &sink])
.unwrap();
gst::Element::link_many(&[&src, &queue, &enc, &pay, &jb, &depay, &dec, &sink]).unwrap();
let appsink = sink.dynamic_cast::<gst_app::AppSink>().unwrap();
let (sender, receiver) = mpsc::channel();
appsink.set_callbacks(
gst_app::AppSinkCallbacks::builder()
.new_sample(move |appsink| {
let _sample = appsink
.emit_by_name("pull-sample", &[])
.unwrap()
.unwrap()
.get::<gst::Sample>()
.unwrap();
sender.send(()).unwrap();
Ok(gst::FlowSuccess::Ok)
})
.build(),
);
pipeline.set_state(gst::State::Playing).unwrap();
gst_debug!(CAT, "jb_ts_pipeline: waiting for {} buffers", BUFFER_NB);
for idx in 0..BUFFER_NB {
receiver.recv().unwrap();
gst_debug!(CAT, "jb_ts_pipeline: received buffer #{}", idx);
}
pipeline.set_state(gst::State::Null).unwrap();
}