gst-plugins-rs/audio/lewton/tests/lewtondec.rs

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// Copyright (C) 2019 Sebastian Dröge <sebastian@centricular.com>
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//
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// SPDX-License-Identifier: MIT OR Apache-2.0
use gst::prelude::*;
fn init() {
use std::sync::Once;
static INIT: Once = Once::new();
INIT.call_once(|| {
gst::init().unwrap();
gstlewton::plugin_register_static().expect("lewton test");
});
}
#[test]
fn test_with_streamheader() {
run_test(false);
}
#[test]
fn test_with_inline_headers() {
run_test(true);
}
fn run_test(inline_headers: bool) {
let data = include_bytes!("test.vorbis");
let packet_sizes = [30, 99, 3189, 43, 20, 56, 56, 21, 20, 22, 21, 22, 22, 43];
let packet_offsets = packet_sizes
.iter()
.scan(0, |state, &size| {
*state += size;
Some(*state)
})
.collect::<Vec<usize>>();
let decoded_samples = [0usize, 128, 576, 1472, 128, 128, 128, 128, 128, 128, 128];
init();
let mut h = gst_check::Harness::new("lewtondec");
h.play();
if inline_headers {
let caps = gst::Caps::builder("audio/x-vorbis").build();
h.set_src_caps(caps);
} else {
let caps = gst::Caps::builder("audio/x-vorbis")
.field(
"streamheader",
gst::Array::new([
gst::Buffer::from_slice(&data[0..packet_offsets[0]]),
gst::Buffer::from_slice(&data[packet_offsets[0]..packet_offsets[1]]),
gst::Buffer::from_slice(&data[packet_offsets[1]..packet_offsets[2]]),
]),
)
.build();
h.set_src_caps(caps);
}
let packet_offsets_iter = std::iter::once(&0).chain(packet_offsets.iter());
let skip = if inline_headers { 0 } else { 3 };
for (offset_start, offset_end) in packet_offsets_iter
.clone()
.skip(skip)
.zip(packet_offsets_iter.clone().skip(skip + 1))
{
let buffer = gst::Buffer::from_slice(&data[*offset_start..*offset_end]);
h.push(buffer).unwrap();
}
h.push_event(gst::event::Eos::new());
for samples in &decoded_samples {
if *samples == 0 {
continue;
}
let buffer = h.pull().unwrap();
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assert_eq!(buffer.size(), 4 * samples);
}
let caps = h
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.sinkpad()
.expect("harness has no sinkpad")
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.current_caps()
.expect("pad has no caps");
assert_eq!(
caps,
gst_audio::AudioCapsBuilder::new_interleaved()
.format(gst_audio::AUDIO_FORMAT_F32)
.rate(44_100)
.channels(1)
.build()
);
}