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https://gitlab.freedesktop.org/gstreamer/gstreamer-rs.git
synced 2024-06-02 21:39:24 +00:00
67 lines
2 KiB
Rust
67 lines
2 KiB
Rust
extern crate gstreamer as gst;
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use gst::prelude::*;
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#[path = "../tutorials-common.rs"]
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mod tutorials_common;
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fn tutorial_main() {
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// Initialize GStreamer
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gst::init().unwrap();
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// Create the elements
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let source = gst::ElementFactory::make("videotestsrc", "source")
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.expect("Could not create source element.");
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let sink =
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gst::ElementFactory::make("autovideosink", "sink").expect("Could not create sink element");
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// Create the empty pipeline
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let pipeline = gst::Pipeline::new("test-pipeline");
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// Build the pipeline
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pipeline.add_many(&[&source, &sink]).unwrap();
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source.link(&sink).expect("Elements could not be linked.");
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// Modify the source's properties
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source.set_property_from_str("pattern", "smpte");
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// Start playing
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let ret = pipeline.set_state(gst::State::Playing);
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assert_ne!(
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ret,
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gst::StateChangeReturn::Failure,
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"Unable to set the pipeline to the Playing state."
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);
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// Wait until error or EOS
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let bus = pipeline.get_bus().unwrap();
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while let Some(msg) = bus.timed_pop(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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msg.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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break;
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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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let ret = pipeline.set_state(gst::State::Null);
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assert_ne!(
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ret,
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gst::StateChangeReturn::Failure,
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"Unable to set the pipeline to the Null state."
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);
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}
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fn main() {
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// tutorials_common::run is only required to set up the application environment on macOS
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// (but not necessary in normal Cocoa applications where this is set up automatically)
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tutorials_common::run(tutorial_main);
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}
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