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.
//
// SPDX-License-Identifier: LGPL-2.1-or-later
use gst::prelude::*;
use std::sync::mpsc;
use once_cell::sync::Lazy;
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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;
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let pipeline = gst::Pipeline::default();
let src = gst::ElementFactory::make("audiotestsrc")
.name("audiotestsrc")
.property("is-live", true)
.property("num-buffers", BUFFER_NB)
.build()
.unwrap();
let enc = gst::ElementFactory::make("alawenc")
.name("alawenc")
.build()
.unwrap();
let pay = gst::ElementFactory::make("rtppcmapay")
.name("rtppcmapay")
.build()
.unwrap();
let jb = gst::ElementFactory::make("ts-jitterbuffer")
.name("ts-jitterbuffer")
.property("context", "jb_pipeline")
.property("context-wait", CONTEXT_WAIT)
.property("latency", LATENCY)
.build()
.unwrap();
let depay = gst::ElementFactory::make("rtppcmadepay")
.name("rtppcmadepay")
.build()
.unwrap();
let dec = gst::ElementFactory::make("alawdec")
.name("alawdec")
.build()
.unwrap();
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let sink = gst_app::AppSink::builder()
.name("appsink")
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.sync(false)
.async_(false)
.build();
pipeline
.add_many([&src, &enc, &pay, &jb, &depay, &dec, sink.upcast_ref()])
.unwrap();
gst::Element::link_many([&src, &enc, &pay, &jb, &depay, &dec, sink.upcast_ref()]).unwrap();
let (sender, receiver) = mpsc::channel();
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sink.set_callbacks(
gst_app::AppSinkCallbacks::builder()
.new_sample(move |appsink| {
let _sample = appsink.pull_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;
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let pipeline = gst::Pipeline::default();
let src = gst::ElementFactory::make("audiotestsrc")
.name("audiotestsrc")
.property("is-live", true)
.property("num-buffers", BUFFER_NB)
.build()
.unwrap();
let queue = gst::ElementFactory::make("ts-queue")
.name("ts-queue")
.property("context", "jb_ts_pipeline_queue")
.property("context-wait", CONTEXT_WAIT)
.build()
.unwrap();
let enc = gst::ElementFactory::make("alawenc")
.name("alawenc")
.build()
.unwrap();
let pay = gst::ElementFactory::make("rtppcmapay")
.name("rtppcmapay")
.build()
.unwrap();
let jb = gst::ElementFactory::make("ts-jitterbuffer")
.name("ts-jitterbuffer")
.property("context", "jb_ts_pipeline")
.property("context-wait", CONTEXT_WAIT)
.property("latency", LATENCY)
.build()
.unwrap();
let depay = gst::ElementFactory::make("rtppcmadepay")
.name("rtppcmadepay")
.build()
.unwrap();
let dec = gst::ElementFactory::make("alawdec")
.name("alawdec")
.build()
.unwrap();
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let sink = gst_app::AppSink::builder()
.name("appsink")
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.sync(false)
.async_(false)
.build();
pipeline
.add_many([
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&src,
&queue,
&enc,
&pay,
&jb,
&depay,
&dec,
sink.upcast_ref(),
])
.unwrap();
gst::Element::link_many([
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&src,
&queue,
&enc,
&pay,
&jb,
&depay,
&dec,
sink.upcast_ref(),
])
.unwrap();
let (sender, receiver) = mpsc::channel();
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sink.set_callbacks(
gst_app::AppSinkCallbacks::builder()
.new_sample(move |appsink| {
let _sample = appsink.pull_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();
}