gst-plugins-rs/mux/mp4/tests/tests.rs

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// Copyright (C) 2022 Sebastian Dröge <sebastian@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
//
use std::path::Path;
use gst::prelude::*;
use gst_pbutils::prelude::*;
fn init() {
use std::sync::Once;
static INIT: Once = Once::new();
INIT.call_once(|| {
gst::init().unwrap();
gstmp4::plugin_register_static().unwrap();
});
}
struct Pipeline(gst::Pipeline);
impl std::ops::Deref for Pipeline {
type Target = gst::Pipeline;
fn deref(&self) -> &Self::Target {
&self.0
}
}
impl Drop for Pipeline {
fn drop(&mut self) {
let _ = self.0.set_state(gst::State::Null);
}
}
impl Pipeline {
fn into_completion(self) {
self.set_state(gst::State::Playing)
.expect("Unable to set the pipeline to the `Playing` state");
for msg in self.bus().unwrap().iter_timed(gst::ClockTime::NONE) {
use gst::MessageView;
match msg.view() {
MessageView::Eos(..) => break,
MessageView::Error(err) => {
panic!(
"Error from {:?}: {} ({:?})",
err.src().map(|s| s.path_string()),
err.error(),
err.debug()
);
}
_ => (),
}
}
self.set_state(gst::State::Null)
.expect("Unable to set the pipeline to the `Null` state");
}
}
fn test_basic_with(video_enc: &str, audio_enc: &str, cb: impl FnOnce(&Path)) {
let Ok(pipeline) = gst::parse::launch(&format!(
"videotestsrc num-buffers=99 ! {video_enc} ! mux. \
audiotestsrc num-buffers=140 ! {audio_enc} ! mux. \
isomp4mux name=mux ! filesink name=sink"
)) else {
println!("could not build encoding pipeline");
return;
};
let pipeline = Pipeline(pipeline.downcast::<gst::Pipeline>().unwrap());
let dir = tempfile::TempDir::new().unwrap();
let mut location = dir.path().to_owned();
location.push("test.mp4");
let sink = pipeline.by_name("sink").unwrap();
sink.set_property("location", location.to_str().expect("Non-UTF8 filename"));
pipeline.into_completion();
cb(&location)
}
#[test]
fn test_basic_x264_aac() {
init();
test_basic_with("x264enc", "fdkaacenc", |location| {
let discoverer = gst_pbutils::Discoverer::new(gst::ClockTime::from_seconds(5))
.expect("Failed to create discoverer");
let info = discoverer
.discover_uri(
url::Url::from_file_path(location)
.expect("Failed to convert filename to URL")
.as_str(),
)
.expect("Failed to discover MP4 file");
assert_eq!(info.duration(), Some(gst::ClockTime::from_mseconds(3_300)));
let audio_streams = info.audio_streams();
assert_eq!(audio_streams.len(), 1);
let audio_stream = &audio_streams[0];
assert_eq!(audio_stream.channels(), 1);
assert_eq!(audio_stream.sample_rate(), 44_100);
let caps = audio_stream.caps().unwrap();
assert!(
caps.can_intersect(
&gst::Caps::builder("audio/mpeg")
.any_features()
.field("mpegversion", 4i32)
.build()
),
"Unexpected audio caps {caps:?}"
);
let video_streams = info.video_streams();
assert_eq!(video_streams.len(), 1);
let video_stream = &video_streams[0];
assert_eq!(video_stream.width(), 320);
assert_eq!(video_stream.height(), 240);
assert_eq!(video_stream.framerate(), gst::Fraction::new(30, 1));
assert_eq!(video_stream.par(), gst::Fraction::new(1, 1));
assert!(!video_stream.is_interlaced());
let caps = video_stream.caps().unwrap();
assert!(
caps.can_intersect(&gst::Caps::builder("video/x-h264").any_features().build()),
"Unexpected video caps {caps:?}"
);
})
}
#[test]
fn test_roundtrip_vp9_flac() {
init();
test_basic_with("vp9enc ! vp9parse", "flacenc ! flacparse", |location| {
let Ok(pipeline) = gst::parse::launch(
"filesrc name=src ! qtdemux name=demux \
demux.audio_0 ! queue ! flacdec ! fakesink \
demux.video_0 ! queue ! vp9dec ! fakesink",
) else {
panic!("could not build decoding pipeline")
};
let pipeline = Pipeline(pipeline.downcast::<gst::Pipeline>().unwrap());
pipeline
.by_name("src")
.unwrap()
.set_property("location", location.display().to_string());
pipeline.into_completion();
})
}
#[test]
fn test_roundtrip_av1_aac() {
init();
test_basic_with("av1enc ! av1parse", "avenc_aac ! aacparse", |location| {
let Ok(pipeline) = gst::parse::launch(
"filesrc name=src ! qtdemux name=demux \
demux.audio_0 ! queue ! avdec_aac ! fakesink \
demux.video_0 ! queue ! av1dec ! fakesink",
) else {
panic!("could not build decoding pipeline")
};
let pipeline = Pipeline(pipeline.downcast::<gst::Pipeline>().unwrap());
pipeline
.by_name("src")
.unwrap()
.set_property("location", location.display().to_string());
pipeline.into_completion();
})
}