mirror of
https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs.git
synced 2024-11-27 05:51:01 +00:00
107 lines
3.5 KiB
Rust
107 lines
3.5 KiB
Rust
// Copyright (C) 2019 Guillaume Desmottes <guillaume.desmottes@collabora.com>
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use gst_app::prelude::*;
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use gstreamer as gst;
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use gstreamer_app as gst_app;
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use std::path::PathBuf;
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use gstcdg;
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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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gstcdg::plugin_register_static().expect("cdgdec tests");
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});
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}
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#[test]
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fn test_cdgdec() {
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init();
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let pipeline = gst::Pipeline::new(Some("cdgdec-test"));
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let input_path = {
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let mut r = PathBuf::new();
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r.push(env!("CARGO_MANIFEST_DIR"));
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r.push("tests");
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r.push("BrotherJohn");
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r.set_extension("cdg");
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r
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};
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let filesrc = gst::ElementFactory::make("filesrc", None).unwrap();
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filesrc
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.set_property("location", &input_path.to_str().unwrap())
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.expect("failed to set 'location' property");
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filesrc
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.set_property("num-buffers", &1)
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.expect("failed to set 'num-buffers' property");
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let blocksize: u32 = 24; // One CDG instruction
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filesrc
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.set_property("blocksize", &blocksize)
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.expect("failed to set 'blocksize' property");
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let parse = gst::ElementFactory::make("cdgparse", None).unwrap();
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let dec = gst::ElementFactory::make("cdgdec", None).unwrap();
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let sink = gst::ElementFactory::make("appsink", None).unwrap();
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pipeline
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.add_many(&[&filesrc, &parse, &dec, &sink])
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.expect("failed to add elements to the pipeline");
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gst::Element::link_many(&[&filesrc, &parse, &dec, &sink]).expect("failed to link the elements");
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let sink = sink.downcast::<gst_app::AppSink>().unwrap();
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sink.set_callbacks(
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gst_app::AppSinkCallbacks::new()
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// Add a handler to the "new-sample" signal.
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.new_sample(move |appsink| {
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// Pull the sample in question out of the appsink's buffer.
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let sample = appsink.pull_sample().map_err(|_| gst::FlowError::Eos)?;
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let buffer = sample.get_buffer().ok_or(gst::FlowError::Error)?;
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let map = buffer.map_readable().map_err(|_| gst::FlowError::Error)?;
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// First frame fully blue
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map.as_slice()
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.chunks_exact(4)
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.for_each(|p| assert_eq!(p, [0, 0, 136, 255]));
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Ok(gst::FlowSuccess::Ok)
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})
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.build(),
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);
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pipeline
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.set_state(gst::State::Playing)
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.expect("Unable to set the pipeline to the `Playing` state");
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let bus = pipeline.get_bus().unwrap();
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for msg in bus.iter_timed(gst::CLOCK_TIME_NONE) {
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use gst::MessageView;
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match msg.view() {
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MessageView::Error(err) => {
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eprintln!(
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"Error received from element {:?}: {}",
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err.get_src().map(|s| s.get_path_string()),
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err.get_error()
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);
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eprintln!("Debugging information: {:?}", err.get_debug());
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unreachable!();
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}
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MessageView::Eos(..) => break,
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_ => (),
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}
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}
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pipeline
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.set_state(gst::State::Null)
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.expect("Unable to set the pipeline to the `Null` state");
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}
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