mirror of
https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs.git
synced 2024-11-26 21:41:03 +00:00
284 lines
8 KiB
Rust
284 lines
8 KiB
Rust
// Copyright (C) 2019 Sebastian Dröge <sebastian@centricular.com>
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// Copyright (C) 2019 Jordan Petridis <jordan@centricular.com>
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the
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// Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
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// Boston, MA 02110-1335, USA.
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#![allow(clippy::single_match)]
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use gst::prelude::*;
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use gst::EventView;
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use gst_video::{ValidVideoTimeCode, VideoTimeCode};
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use pretty_assertions::assert_eq;
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use rand::{Rng, SeedableRng};
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use std::collections::VecDeque;
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use std::path::PathBuf;
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fn init() {
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use std::sync::Once;
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static INIT: Once = Once::new();
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INIT.call_once(|| {
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gst::init().unwrap();
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gstrsclosedcaption::plugin_register_static().unwrap();
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});
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}
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/// Randomized test passing buffers of arbitrary sizes to the parser
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#[test]
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fn test_parse() {
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init();
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let mut data = include_bytes!("dn2018-1217.scc").as_ref();
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let mut rnd = if let Ok(seed) = std::env::var("SCC_PARSE_TEST_SEED") {
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rand::rngs::SmallRng::seed_from_u64(
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seed.parse::<u64>()
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.expect("SCC_PARSE_TEST_SEED has to contain a 64 bit integer seed"),
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)
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} else {
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let seed = rand::random::<u64>();
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println!("seed {}", seed);
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rand::rngs::SmallRng::seed_from_u64(seed)
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};
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let mut h = gst_check::Harness::new("sccparse");
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h.set_src_caps_str("application/x-scc");
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let mut input_len = 0;
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let mut output_len = 0;
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let mut checksum = 0u32;
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while !data.is_empty() {
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let l = if data.len() == 1 {
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1
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} else {
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rnd.gen_range(1..=data.len())
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};
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let buf = gst::Buffer::from_mut_slice(Vec::from(&data[0..l]));
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input_len += buf.size();
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assert_eq!(h.push(buf), Ok(gst::FlowSuccess::Ok));
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while let Some(buf) = h.try_pull() {
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output_len += buf.size();
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checksum = checksum.wrapping_add(
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buf.map_readable()
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.unwrap()
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.iter()
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.fold(0u32, |s, v| s.wrapping_add(*v as u32)),
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);
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}
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data = &data[l..];
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}
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h.push_event(gst::event::Eos::new());
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while let Some(buf) = h.try_pull() {
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output_len += buf.size();
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checksum = checksum.wrapping_add(
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buf.map_readable()
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.unwrap()
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.iter()
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.fold(0u32, |s, v| s.wrapping_add(*v as u32)),
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);
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}
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assert_eq!(input_len, 241_152);
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assert_eq!(output_len, 89084);
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assert_eq!(checksum, 12_554_799);
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let caps = h
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.sinkpad()
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.expect("harness has no sinkpad")
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.current_caps()
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.expect("pad has no caps");
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assert_eq!(
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caps,
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gst::Caps::builder("closedcaption/x-cea-608")
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.field("format", "raw")
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.field("framerate", gst::Fraction::new(30000, 1001))
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.build()
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);
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}
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/// Test that ensures timecode parsing is the expected one
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#[test]
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fn test_timecodes() {
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init();
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let data = include_bytes!("timecodes-cut-down-sample.scc").as_ref();
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let mut h = gst_check::Harness::new("sccparse");
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h.set_src_caps_str("application/x-scc");
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let timecodes = [
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"00:00:00;00",
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"00:00:14;01",
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"00:00:17;26",
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"00:00:19;01",
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"00:00:21;02",
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"00:00:23;10",
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"00:00:25;18",
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"00:00:28;13",
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"00:00:30;29",
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"00:00:34;29",
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"00:00:37;27",
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"00:00:40;01",
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"00:00:43;27",
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"00:00:45;13",
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"00:00:49;16",
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"00:58:51;01",
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"00:58:52;29",
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"00:58:55;00",
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"00:59:00;25",
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];
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let mut valid_timecodes: VecDeque<ValidVideoTimeCode> = timecodes
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.iter()
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.map(|s| {
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let mut t = s.parse::<VideoTimeCode>().unwrap();
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t.set_fps(gst::Fraction::new(30000, 1001));
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t.set_flags(gst_video::VideoTimeCodeFlags::DROP_FRAME);
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t
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})
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.map(|t| t.try_into().unwrap())
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.collect();
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let mut output_len = 0;
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let mut checksum = 0u32;
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let mut expected_timecode = valid_timecodes.pop_front().unwrap();
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let buf = gst::Buffer::from_mut_slice(Vec::from(data));
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assert_eq!(h.push(buf), Ok(gst::FlowSuccess::Ok));
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while let Some(buf) = h.try_pull() {
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output_len += buf.size();
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checksum = checksum.wrapping_add(
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buf.map_readable()
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.unwrap()
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.iter()
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.fold(0u32, |s, v| s.wrapping_add(*v as u32)),
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);
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// get the timecode of the buffer
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let tc = buf
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.meta::<gst_video::VideoTimeCodeMeta>()
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.expect("No timecode meta")
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.tc();
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// if the timecode matches one of expected codes,
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// pop the valid_timecodes deque and set expected_timecode,
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// to the next timecode.
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if Some(&tc) == valid_timecodes.front() {
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expected_timecode = valid_timecodes.pop_front().unwrap();
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}
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assert_eq!(tc, expected_timecode);
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expected_timecode.increment_frame();
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}
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assert_eq!(output_len, 1268);
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assert_eq!(checksum, 174_295);
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let caps = h
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.sinkpad()
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.expect("harness has no sinkpad")
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.current_caps()
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.expect("pad has no caps");
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assert_eq!(
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caps,
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gst::Caps::builder("closedcaption/x-cea-608")
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.field("format", "raw")
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.field("framerate", gst::Fraction::new(30000, 1001))
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.build()
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);
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}
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#[test]
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fn test_pull() {
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init();
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let mut path = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
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path.push("tests/dn2018-1217.scc");
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let mut h = gst_check::Harness::new_parse(&format!("filesrc location={:?} ! sccparse", path));
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h.play();
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/* Let's first pull until EOS */
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loop {
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let mut done = false;
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while h.events_in_queue() != 0 {
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let event = h.pull_event();
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if let Ok(event) = event {
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match event.view() {
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EventView::Eos(_) => {
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done = true;
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break;
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}
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_ => (),
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}
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}
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}
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while h.buffers_in_queue() != 0 {
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let _ = h.pull();
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}
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if done {
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break;
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}
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}
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/* Now seek and check that we receive buffers with appropriate PTS */
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h.push_upstream_event(gst::event::Seek::new(
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1.0,
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gst::SeekFlags::FLUSH,
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gst::SeekType::Set,
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gst::GenericFormattedValue::Time(Some(18 * gst::ClockTime::SECOND)),
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gst::SeekType::Set,
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gst::GenericFormattedValue::Time(Some(19 * gst::ClockTime::SECOND)),
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));
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loop {
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let mut done = false;
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while h.buffers_in_queue() != 0 {
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if let Ok(buffer) = h.pull() {
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let pts = buffer.pts().unwrap();
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let end_time = pts + buffer.duration().unwrap();
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assert!(
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end_time >= 18 * gst::ClockTime::SECOND && pts < 19 * gst::ClockTime::SECOND
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);
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}
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}
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while h.events_in_queue() != 0 {
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let event = h.pull_event();
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if let Ok(event) = event {
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match event.view() {
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EventView::Eos(_) => {
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done = true;
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break;
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}
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_ => (),
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}
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}
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}
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if done {
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break;
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}
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}
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}
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