mirror of
https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs.git
synced 2024-11-26 13:31:00 +00:00
hlscmafsink: Add live recording example
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1306>
This commit is contained in:
Seungha Yang
parent
52117e4b11
commit
1888a2eb82
2 changed files with 314 additions and 0 deletions
|
|
@ -19,7 +19,11 @@ sprintf = "0.1.3"
|
|||
|
||||
[dev-dependencies]
|
||||
gst-audio = { package = "gstreamer-audio", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
|
||||
gst-video = { package = "gstreamer-video", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
|
||||
gst-check = { package = "gstreamer-check", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs" }
|
||||
gst-pbutils = { package = "gstreamer-pbutils", git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs", features = ["v1_20"] }
|
||||
m3u8-rs = "5.0"
|
||||
anyhow = "1"
|
||||
|
||||
[build-dependencies]
|
||||
gst-plugin-version-helper = { path = "../../version-helper" }
|
||||
|
|
|
|||
310
net/hlssink3/examples/cmaf_live.rs
Normal file
310
net/hlssink3/examples/cmaf_live.rs
Normal file
|
|
@ -0,0 +1,310 @@
|
|||
// Copyright (C) 2022 Mathieu Duponchelle <mathieu@centricular.com>
|
||||
// Copyright (C) 2023 Seungha Yang <seungha@centricular.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
|
||||
|
||||
// This creates a master playlist for live HLS CMAF stream with one video playlist and two audio playlists.
|
||||
|
||||
use gst::glib;
|
||||
use gst::prelude::*;
|
||||
|
||||
use std::path::{Path, PathBuf};
|
||||
use std::sync::{Arc, Mutex};
|
||||
|
||||
use anyhow::Error;
|
||||
|
||||
use m3u8_rs::{AlternativeMedia, AlternativeMediaType, MasterPlaylist, VariantStream};
|
||||
|
||||
const VIDEO_WIDTH: u32 = 640;
|
||||
const VIDEO_HEIGHT: u32 = 480;
|
||||
const VIDEO_BITRATE: u32 = 2_048_000;
|
||||
|
||||
fn create_sink(path: &Path, name: &str) -> gst::Element {
|
||||
let mut path: PathBuf = path.into();
|
||||
path.push(name);
|
||||
std::fs::create_dir_all(&path).expect("failed to create directory");
|
||||
|
||||
let mut playlist_location: PathBuf = path.clone();
|
||||
playlist_location.push("manifest.m3u8");
|
||||
|
||||
let mut init_location: PathBuf = path.clone();
|
||||
init_location.push("init_%03d.mp4");
|
||||
|
||||
let mut location: PathBuf = path.clone();
|
||||
location.push("segment_%05d.m4s");
|
||||
|
||||
let sink = gst::ElementFactory::make("hlscmafsink")
|
||||
.name(name)
|
||||
.property("target-duration", 5u32)
|
||||
.property("playlist-location", playlist_location.to_str().unwrap())
|
||||
.property("init-location", init_location.to_str().unwrap())
|
||||
.property("location", location.to_str().unwrap())
|
||||
.property("enable-program-date-time", true)
|
||||
// Need sync=true for cmafmux to timeout properly in case of live pipeline
|
||||
.property("sync", true)
|
||||
.build()
|
||||
.expect("failed to create hlscmafsink");
|
||||
|
||||
// The same as default implementation of hlscmafsink.
|
||||
// Connecting signals here to print debug log to stdout
|
||||
sink.connect_closure(
|
||||
"get-init-stream",
|
||||
false,
|
||||
glib::closure!(move |sink: &gst::Element, location: &str| {
|
||||
println!("{}, writing init segment to {location}", sink.name());
|
||||
let file = std::fs::File::create(location).unwrap();
|
||||
gio::WriteOutputStream::new(file).upcast::<gio::OutputStream>()
|
||||
}),
|
||||
);
|
||||
|
||||
sink.connect_closure(
|
||||
"get-fragment-stream",
|
||||
false,
|
||||
glib::closure!(move |sink: &gst::Element, location: &str| {
|
||||
println!("{}, writing segment to {location}", sink.name());
|
||||
let file = std::fs::File::create(location).unwrap();
|
||||
gio::WriteOutputStream::new(file).upcast::<gio::OutputStream>()
|
||||
}),
|
||||
);
|
||||
|
||||
sink.connect_closure(
|
||||
"delete-fragment",
|
||||
false,
|
||||
glib::closure!(move |sink: &gst::Element, location: &str| {
|
||||
println!("{}, removing segment {location}", sink.name());
|
||||
std::fs::remove_file(location).unwrap();
|
||||
|
||||
true
|
||||
}),
|
||||
);
|
||||
|
||||
sink
|
||||
}
|
||||
|
||||
fn setup_video_sink(pipeline: &gst::Pipeline, path: &Path, name: &str) -> Result<(), Error> {
|
||||
let src = gst::ElementFactory::make("videotestsrc")
|
||||
.property("is-live", true)
|
||||
.build()?;
|
||||
|
||||
let raw_capsfilter = gst::ElementFactory::make("capsfilter")
|
||||
.property(
|
||||
"caps",
|
||||
gst_video::VideoCapsBuilder::new()
|
||||
.format(gst_video::VideoFormat::I420)
|
||||
.width(VIDEO_WIDTH as i32)
|
||||
.height(VIDEO_HEIGHT as i32)
|
||||
.framerate(30.into())
|
||||
.build(),
|
||||
)
|
||||
.build()?;
|
||||
|
||||
let timeoverlay = gst::ElementFactory::make("timeoverlay").build()?;
|
||||
let queue = gst::ElementFactory::make("queue").build()?;
|
||||
let enc = gst::ElementFactory::make("x264enc")
|
||||
.property("bframes", 0u32)
|
||||
.property("bitrate", VIDEO_BITRATE / 1000u32)
|
||||
.property("key-int-max", std::i32::MAX as u32)
|
||||
.property_from_str("tune", "zerolatency")
|
||||
.build()?;
|
||||
let h264_capsfilter = gst::ElementFactory::make("capsfilter")
|
||||
.property(
|
||||
"caps",
|
||||
gst::Caps::builder("video/x-h264")
|
||||
.field("profile", "main")
|
||||
.build(),
|
||||
)
|
||||
.build()?;
|
||||
let sink = create_sink(path, name);
|
||||
|
||||
pipeline.add_many([
|
||||
&src,
|
||||
&raw_capsfilter,
|
||||
&timeoverlay,
|
||||
&queue,
|
||||
&enc,
|
||||
&h264_capsfilter,
|
||||
&sink,
|
||||
])?;
|
||||
|
||||
gst::Element::link_many([
|
||||
&src,
|
||||
&raw_capsfilter,
|
||||
&timeoverlay,
|
||||
&queue,
|
||||
&enc,
|
||||
&h264_capsfilter,
|
||||
&sink,
|
||||
])?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn setup_audio_sink(
|
||||
pipeline: &gst::Pipeline,
|
||||
path: &Path,
|
||||
name: &str,
|
||||
wave: &str,
|
||||
) -> Result<(), Error> {
|
||||
let src = gst::ElementFactory::make("audiotestsrc")
|
||||
.property("is-live", true)
|
||||
.property_from_str("wave", wave)
|
||||
.build()?;
|
||||
let capsfilter = gst::ElementFactory::make("capsfilter")
|
||||
.property(
|
||||
"caps",
|
||||
gst::Caps::builder("audio/x-raw")
|
||||
.field("channels", 2)
|
||||
.build(),
|
||||
)
|
||||
.build()?;
|
||||
let queue = gst::ElementFactory::make("queue").build()?;
|
||||
let enc = gst::ElementFactory::make("avenc_aac").build()?;
|
||||
let parse = gst::ElementFactory::make("aacparse").build()?;
|
||||
let sink = create_sink(path, name);
|
||||
|
||||
pipeline.add_many([&src, &capsfilter, &queue, &enc, &parse, &sink])?;
|
||||
gst::Element::link_many([&src, &capsfilter, &queue, &enc, &parse, &sink])?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn get_codec_string(pipeline: &gst::Pipeline, name: &str) -> String {
|
||||
let sink = pipeline.by_name(name).unwrap();
|
||||
let pad = sink.static_pad("sink").unwrap();
|
||||
let caps = pad.sticky_event::<gst::event::Caps>(0).unwrap();
|
||||
gst_pbutils::codec_utils_caps_get_mime_codec(caps.caps())
|
||||
.unwrap()
|
||||
.to_string()
|
||||
}
|
||||
|
||||
fn write_master_playlist(pipeline: &gst::Pipeline, path: &PathBuf) {
|
||||
// Gets configured caps and constructs CODEC string
|
||||
let video_codec = get_codec_string(pipeline, "video_0");
|
||||
|
||||
// Both audios should have the same caps in this example
|
||||
let audio_codec = get_codec_string(pipeline, "audio_0");
|
||||
|
||||
let codecs = format!("{video_codec},{audio_codec}");
|
||||
|
||||
let variants = vec![VariantStream {
|
||||
uri: "video_0/manifest.m3u8".to_string(),
|
||||
codecs: Some(codecs),
|
||||
bandwidth: VIDEO_BITRATE as u64,
|
||||
resolution: Some(m3u8_rs::Resolution {
|
||||
width: VIDEO_WIDTH as u64,
|
||||
height: VIDEO_HEIGHT as u64,
|
||||
}),
|
||||
audio: Some("audio".to_string()),
|
||||
..Default::default()
|
||||
}];
|
||||
|
||||
let mut alternatives = Vec::new();
|
||||
for i in 0..2 {
|
||||
let name = format!("audio_{}", i);
|
||||
let language = if i == 0 {
|
||||
Some("enc".to_string())
|
||||
} else {
|
||||
Some("fre".to_string())
|
||||
};
|
||||
alternatives.push(AlternativeMedia {
|
||||
media_type: AlternativeMediaType::Audio,
|
||||
uri: Some(format!("{name}/manifest.m3u8")),
|
||||
group_id: "audio".to_string(),
|
||||
language,
|
||||
name,
|
||||
default: i == 0,
|
||||
autoselect: i == 0,
|
||||
channels: Some("2".to_string()),
|
||||
..Default::default()
|
||||
})
|
||||
}
|
||||
|
||||
let playlist = MasterPlaylist {
|
||||
version: Some(6),
|
||||
variants,
|
||||
alternatives,
|
||||
independent_segments: true,
|
||||
..Default::default()
|
||||
};
|
||||
|
||||
println!("Writing master manifest to {}", path.display());
|
||||
|
||||
let mut file = std::fs::File::create(path).unwrap();
|
||||
playlist
|
||||
.write_to(&mut file)
|
||||
.expect("Failed to write master playlist");
|
||||
}
|
||||
|
||||
fn main() -> Result<(), Error> {
|
||||
gst::init()?;
|
||||
|
||||
gsthlssink3::plugin_register_static()?;
|
||||
|
||||
let path = PathBuf::from("hls_live_stream");
|
||||
|
||||
std::fs::create_dir_all(&path).expect("failed to create directory");
|
||||
|
||||
let mut manifest_path = path.clone();
|
||||
manifest_path.push("manifest.m3u8");
|
||||
|
||||
let pipeline = gst::Pipeline::default();
|
||||
setup_video_sink(&pipeline, &path, "video_0")?;
|
||||
setup_audio_sink(&pipeline, &path, "audio_0", "sine")?;
|
||||
setup_audio_sink(&pipeline, &path, "audio_1", "white-noise")?;
|
||||
|
||||
pipeline.set_state(gst::State::Playing)?;
|
||||
|
||||
let bus = pipeline
|
||||
.bus()
|
||||
.expect("Pipeline without bus. Shouldn't happen!");
|
||||
|
||||
let pipeline_weak = pipeline.downgrade();
|
||||
let write_playlist = Arc::new(Mutex::new(true));
|
||||
for msg in bus.iter_timed(gst::ClockTime::NONE) {
|
||||
use gst::MessageView;
|
||||
|
||||
match msg.view() {
|
||||
MessageView::StateChanged(state_changed) => {
|
||||
let pipeline = match pipeline_weak.upgrade() {
|
||||
Some(pipeline) => pipeline,
|
||||
None => break,
|
||||
};
|
||||
|
||||
let mut need_write = write_playlist.lock().unwrap();
|
||||
if *need_write
|
||||
&& state_changed.src() == Some(pipeline.upcast_ref())
|
||||
&& state_changed.old() == gst::State::Paused
|
||||
&& state_changed.current() == gst::State::Playing
|
||||
{
|
||||
*need_write = false;
|
||||
write_master_playlist(&pipeline, &manifest_path);
|
||||
}
|
||||
}
|
||||
MessageView::Eos(..) => {
|
||||
println!("EOS");
|
||||
break;
|
||||
}
|
||||
MessageView::Error(err) => {
|
||||
pipeline.set_state(gst::State::Null)?;
|
||||
eprintln!(
|
||||
"Got error from {}: {} ({})",
|
||||
msg.src()
|
||||
.map(|s| String::from(s.path_string()))
|
||||
.unwrap_or_else(|| "None".into()),
|
||||
err.error(),
|
||||
err.debug().unwrap_or_else(|| "".into()),
|
||||
);
|
||||
break;
|
||||
}
|
||||
_ => (),
|
||||
}
|
||||
}
|
||||
|
||||
pipeline.set_state(gst::State::Null)?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
Loading…
Reference in a new issue