gst-plugins-rs/net/hlssink3/tests/hlssink3.rs

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// Copyright (C) 2021 Rafael Caricio <rafael@caricio.com>
//
// This Source Code Form is subject to the terms of the Mozilla Public License, v2.0.
// If a copy of the MPL was not distributed with this file, You can obtain one at
// <https://mozilla.org/MPL/2.0/>.
//
// SPDX-License-Identifier: MPL-2.0
use gio::prelude::*;
use gst::prelude::*;
use gsthlssink3::HlsSink3PlaylistType;
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use once_cell::sync::Lazy;
use std::io::Write;
use std::sync::{mpsc, Arc, Mutex};
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use std::time::Duration;
static CAT: Lazy<gst::DebugCategory> = Lazy::new(|| {
gst::DebugCategory::new(
"hlssink3-test",
gst::DebugColorFlags::empty(),
Some("Flex HLS sink test"),
)
});
macro_rules! try_or_pause {
($l:expr) => {
match $l {
Ok(v) => v,
Err(err) => {
eprintln!("Skipping Test: {:?}", err);
return Ok(());
}
}
};
}
macro_rules! try_create_element {
($l:expr, $n:expr) => {
match gst::ElementFactory::find($l) {
Some(factory) => factory.create().name($n).build().unwrap(),
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None => {
eprintln!("Could not find {} ({}) plugin, skipping test", $l, $n);
return Ok(());
}
}
};
($l:expr) => {{
let alias: String = format!("test_{}", $l);
try_create_element!($l, <std::string::String as AsRef<str>>::as_ref(&alias))
}};
}
fn init() {
use std::sync::Once;
static INIT: Once = Once::new();
INIT.call_once(|| {
gst::init().unwrap();
gsthlssink3::plugin_register_static().expect("hlssink3 test");
});
}
#[derive(Debug, Clone, Eq, PartialEq)]
enum HlsSinkEvent {
GetPlaylistStream(String),
GetFragmentStream(String),
DeleteFragment(String),
}
/// Represents a HLS playlist file that writes to a shared string.
///
/// Only used in tests to check the resulting playlist content without the need to write
/// to actual filesystem.
struct MemoryPlaylistFile {
/// Reference to the content handler.
handler: Arc<Mutex<String>>,
}
impl MemoryPlaylistFile {
/// Whenever we know the file will be overridden we call this method to clear the contents.
fn clear_content(&self) {
let mut string = self.handler.lock().unwrap();
string.clear();
}
}
impl Write for MemoryPlaylistFile {
fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
// We don't need to handle errors here as this is used only in tests
let value = std::str::from_utf8(buf).unwrap();
let mut string = self.handler.lock().unwrap();
string.push_str(value);
Ok(buf.len())
}
fn flush(&mut self) -> std::io::Result<()> {
// We are writing to a `String` object, no need to flush content
Ok(())
}
}
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#[test]
fn test_hlssink3_element_with_video_content() -> Result<(), ()> {
init();
const BUFFER_NB: i32 = 250;
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let pipeline = gst::Pipeline::builder().name("video_pipeline").build();
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let video_src = try_create_element!("videotestsrc");
video_src.set_property("is-live", true);
video_src.set_property("num-buffers", BUFFER_NB);
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let x264enc = try_create_element!("x264enc");
let h264parse = try_create_element!("h264parse");
let hlssink3 = gst::ElementFactory::make("hlssink3")
.name("test_hlssink3")
.property("target-duration", 2u32)
.property("playlist-length", 2u32)
.property("max-files", 2u32)
.build()
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.expect("Must be able to instantiate hlssink3");
hlssink3.set_property("playlist-type", HlsSink3PlaylistType::Event);
let pl_type: HlsSink3PlaylistType = hlssink3.property("playlist-type");
assert_eq!(pl_type, HlsSink3PlaylistType::Event);
hlssink3.set_property_from_str("playlist-type", "Unspecified");
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let (hls_events_sender, hls_events_receiver) = mpsc::sync_channel(20);
let playlist_content = Arc::new(Mutex::new(String::from("")));
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hlssink3.connect("get-playlist-stream", false, {
let hls_events_sender = hls_events_sender.clone();
let playlist_content = playlist_content.clone();
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move |args| {
let location = args[1].get::<String>().expect("No location given");
hls_events_sender
.try_send(HlsSinkEvent::GetPlaylistStream(location))
.expect("Send playlist event");
// We need an owned type to pass to `gio::WriteOutputStream`
let playlist = MemoryPlaylistFile {
handler: Arc::clone(&playlist_content),
};
// Since here a new file will be created, the content is cleared
playlist.clear_content();
let output = gio::WriteOutputStream::new(playlist);
Some(output.to_value())
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}
});
hlssink3.connect("get-fragment-stream", false, {
let hls_events_sender = hls_events_sender.clone();
move |args| {
let location = args[1].get::<String>().expect("No location given");
hls_events_sender
.try_send(HlsSinkEvent::GetFragmentStream(location))
.expect("Send fragment event");
let stream = gio::MemoryOutputStream::new_resizable();
Some(stream.to_value())
}
});
hlssink3.connect("delete-fragment", false, move |args| {
let location = args[1].get::<String>().expect("No location given");
hls_events_sender
.try_send(HlsSinkEvent::DeleteFragment(location))
.expect("Send delete fragment event");
Some(true.to_value())
});
try_or_pause!(pipeline.add_many(&[&video_src, &x264enc, &h264parse, &hlssink3,]));
try_or_pause!(gst::Element::link_many(&[
&video_src, &x264enc, &h264parse, &hlssink3
]));
pipeline.set_state(gst::State::Playing).unwrap();
gst::info!(
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CAT,
"hlssink3_video_pipeline: waiting for {} buffers",
BUFFER_NB
);
let mut eos = false;
let bus = pipeline.bus().unwrap();
while let Some(msg) = bus.timed_pop(gst::ClockTime::NONE) {
use gst::MessageView;
match msg.view() {
MessageView::Eos(..) => {
eos = true;
break;
}
MessageView::Error(..) => unreachable!(),
_ => (),
}
}
pipeline.set_state(gst::State::Null).unwrap();
assert!(eos);
// Collect all events triggered during execution of the pipeline
let mut actual_events = Vec::new();
while let Ok(event) = hls_events_receiver.recv_timeout(Duration::from_millis(1)) {
actual_events.push(event);
}
let expected_ordering_of_events = {
use self::HlsSinkEvent::*;
vec![
GetFragmentStream("segment00000.ts".to_string()),
GetPlaylistStream("playlist.m3u8".to_string()),
GetFragmentStream("segment00001.ts".to_string()),
GetPlaylistStream("playlist.m3u8".to_string()),
GetFragmentStream("segment00002.ts".to_string()),
GetPlaylistStream("playlist.m3u8".to_string()),
DeleteFragment("segment00000.ts".to_string()),
GetFragmentStream("segment00003.ts".to_string()),
GetPlaylistStream("playlist.m3u8".to_string()),
DeleteFragment("segment00001.ts".into()),
GetFragmentStream("segment00004.ts".to_string()),
GetPlaylistStream("playlist.m3u8".to_string()),
DeleteFragment("segment00002.ts".to_string()),
GetPlaylistStream("playlist.m3u8".to_string()),
]
};
assert_eq!(expected_ordering_of_events, actual_events);
let contents = playlist_content.lock().unwrap();
assert_eq!(
r###"#EXTM3U
#EXT-X-VERSION:3
#EXT-X-TARGETDURATION:2
#EXT-X-MEDIA-SEQUENCE:4
#EXTINF:2,
segment00003.ts
#EXTINF:0.3,
segment00004.ts
"###,
contents.to_string()
);
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Ok(())
}
#[test]
fn test_hlssink3_element_with_audio_content() -> Result<(), ()> {
init();
const BUFFER_NB: i32 = 100;
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let pipeline = gst::Pipeline::builder().name("audio_pipeline").build();
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let audio_src = try_create_element!("audiotestsrc");
audio_src.set_property("is-live", true);
audio_src.set_property("num-buffers", BUFFER_NB);
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let hls_avenc_aac = try_or_pause!(gst::ElementFactory::make("avenc_aac")
.name("hls_avenc_aac")
.build());
let hlssink3 = gst::ElementFactory::make("hlssink3")
.name("hlssink3")
.property("target-duration", 6u32)
.build()
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.expect("Must be able to instantiate hlssink3");
hlssink3.connect("get-playlist-stream", false, move |_args| {
let stream = gio::MemoryOutputStream::new_resizable();
Some(stream.to_value())
});
hlssink3.connect("get-fragment-stream", false, move |_args| {
let stream = gio::MemoryOutputStream::new_resizable();
Some(stream.to_value())
});
hlssink3.connect("delete-fragment", false, move |_| Some(true.to_value()));
try_or_pause!(pipeline.add_many(&[&audio_src, &hls_avenc_aac, &hlssink3,]));
try_or_pause!(gst::Element::link_many(&[
&audio_src,
&hls_avenc_aac,
&hlssink3
]));
pipeline.set_state(gst::State::Playing).unwrap();
gst::info!(CAT, "audio_pipeline: waiting for {} buffers", BUFFER_NB);
let mut eos = false;
let bus = pipeline.bus().unwrap();
while let Some(msg) = bus.timed_pop(gst::ClockTime::NONE) {
use gst::MessageView;
match msg.view() {
MessageView::Eos(..) => {
eos = true;
break;
}
MessageView::Error(..) => unreachable!(),
_ => (),
}
}
pipeline.set_state(gst::State::Null).unwrap();
assert!(eos);
Ok(())
}
#[test]
fn test_hlssink3_write_correct_playlist_content() -> Result<(), ()> {
init();
const BUFFER_NB: i32 = 50;
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let pipeline = gst::Pipeline::builder().name("video_pipeline").build();
let video_src = try_create_element!("videotestsrc");
video_src.set_property("is-live", true);
video_src.set_property("num-buffers", BUFFER_NB);
let x264enc = try_create_element!("x264enc");
let h264parse = try_create_element!("h264parse");
let hlssink3 = gst::ElementFactory::make("hlssink3")
.name("test_hlssink3")
.property("location", "/www/media/segments/my-own-filename-%03d.ts")
.property("playlist-location", "/www/media/main.m3u8")
.property("playlist-root", "segments")
.build()
.expect("Must be able to instantiate hlssink3");
let (hls_events_sender, hls_events_receiver) = mpsc::sync_channel(20);
let playlist_content = Arc::new(Mutex::new(String::from("")));
hlssink3.connect("get-playlist-stream", false, {
let hls_events_sender = hls_events_sender.clone();
let playlist_content = playlist_content.clone();
move |args| {
let location = args[1].get::<String>().expect("No location given");
hls_events_sender
.try_send(HlsSinkEvent::GetPlaylistStream(location))
.expect("Send playlist event");
// We need an owned type to pass to `gio::WriteOutputStream`
let playlist = MemoryPlaylistFile {
handler: Arc::clone(&playlist_content),
};
// Since here a new file will be created, the content is cleared
playlist.clear_content();
let output = gio::WriteOutputStream::new(playlist);
Some(output.to_value())
}
});
hlssink3.connect("get-fragment-stream", false, {
let hls_events_sender = hls_events_sender.clone();
move |args| {
let location = args[1].get::<String>().expect("No location given");
hls_events_sender
.try_send(HlsSinkEvent::GetFragmentStream(location))
.expect("Send fragment event");
let stream = gio::MemoryOutputStream::new_resizable();
Some(stream.to_value())
}
});
hlssink3.connect("delete-fragment", false, move |args| {
let location = args[1].get::<String>().expect("No location given");
hls_events_sender
.try_send(HlsSinkEvent::DeleteFragment(location))
.expect("Send delete fragment event");
Some(true.to_value())
});
try_or_pause!(pipeline.add_many(&[&video_src, &x264enc, &h264parse, &hlssink3,]));
try_or_pause!(gst::Element::link_many(&[
&video_src, &x264enc, &h264parse, &hlssink3
]));
pipeline.set_state(gst::State::Playing).unwrap();
gst::info!(
CAT,
"hlssink3_video_pipeline: waiting for {} buffers",
BUFFER_NB
);
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let mut eos = false;
let bus = pipeline.bus().unwrap();
while let Some(msg) = bus.timed_pop(gst::ClockTime::NONE) {
use gst::MessageView;
match msg.view() {
MessageView::Eos(..) => {
eos = true;
break;
}
MessageView::Error(..) => unreachable!(),
_ => (),
}
}
pipeline.set_state(gst::State::Null).unwrap();
assert!(eos);
// Collect all events triggered during execution of the pipeline
let mut actual_events = Vec::new();
while let Ok(event) = hls_events_receiver.recv_timeout(Duration::from_millis(1)) {
actual_events.push(event);
}
let expected_ordering_of_events = {
use self::HlsSinkEvent::*;
vec![
GetFragmentStream("/www/media/segments/my-own-filename-000.ts".to_string()),
GetPlaylistStream("/www/media/main.m3u8".to_string()),
GetPlaylistStream("/www/media/main.m3u8".to_string()),
]
};
assert_eq!(expected_ordering_of_events, actual_events);
let contents = playlist_content.lock().unwrap();
assert_eq!(
r###"#EXTM3U
#EXT-X-VERSION:3
#EXT-X-TARGETDURATION:15
#EXT-X-MEDIA-SEQUENCE:1
#EXTINF:1.633,
segments/my-own-filename-000.ts
"###,
contents.to_string()
);
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Ok(())
}