mirror of
https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs.git
synced 2024-11-26 13:31:00 +00:00
7ac29827d2
This would require setting the correct compatible band for VP9 in CMAF, which is not implemented yet.
1280 lines
42 KiB
Rust
1280 lines
42 KiB
Rust
//
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// This Source Code Form is subject to the terms of the Mozilla Public License, v2.0.
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// If a copy of the MPL was not distributed with this file, You can obtain one at
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// <https://mozilla.org/MPL/2.0/>.
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//
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// SPDX-License-Identifier: MPL-2.0
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//
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use gst::prelude::*;
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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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gstfmp4::plugin_register_static().unwrap();
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});
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}
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fn test_buffer_flags_single_stream(cmaf: bool, set_dts: bool, caps: gst::Caps) {
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let mut h = if cmaf {
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gst_check::Harness::new("cmafmux")
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} else {
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gst_check::Harness::with_padnames("isofmp4mux", Some("sink_0"), Some("src"))
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};
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// 5s fragment duration
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h.element()
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.unwrap()
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.set_property("fragment-duration", 5.seconds());
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h.set_src_caps(caps);
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h.play();
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let output_offset = if cmaf {
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gst::ClockTime::ZERO
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} else {
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(60 * 60 * 1000).seconds()
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};
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// Push 7 buffers of 1s each, 1st and 6 buffer without DELTA_UNIT flag
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for i in 0..7 {
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let mut buffer = gst::Buffer::with_size(1).unwrap();
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{
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let buffer = buffer.get_mut().unwrap();
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buffer.set_pts(i.seconds());
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if set_dts {
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buffer.set_dts(i.seconds());
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}
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buffer.set_duration(gst::ClockTime::SECOND);
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if i != 0 && i != 5 {
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buffer.set_flags(gst::BufferFlags::DELTA_UNIT);
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}
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}
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assert_eq!(h.push(buffer), Ok(gst::FlowSuccess::Ok));
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if i == 2 {
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let ev = loop {
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let ev = h.pull_upstream_event().unwrap();
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if ev.type_() != gst::EventType::Reconfigure
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&& ev.type_() != gst::EventType::Latency
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{
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break ev;
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}
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};
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assert_eq!(ev.type_(), gst::EventType::CustomUpstream);
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assert_eq!(
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gst_video::UpstreamForceKeyUnitEvent::parse(&ev).unwrap(),
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gst_video::UpstreamForceKeyUnitEvent {
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running_time: Some(5.seconds()),
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all_headers: true,
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count: 0
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}
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);
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}
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}
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let header = h.pull().unwrap();
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assert_eq!(
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header.flags(),
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gst::BufferFlags::HEADER | gst::BufferFlags::DISCONT
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);
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assert_eq!(header.pts(), Some(gst::ClockTime::ZERO + output_offset));
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if set_dts {
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assert_eq!(header.dts(), Some(gst::ClockTime::ZERO + output_offset));
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}
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let fragment_header = h.pull().unwrap();
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assert_eq!(fragment_header.flags(), gst::BufferFlags::HEADER);
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assert_eq!(
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fragment_header.pts(),
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Some(gst::ClockTime::ZERO + output_offset)
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);
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if set_dts {
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assert_eq!(
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fragment_header.dts(),
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Some(gst::ClockTime::ZERO + output_offset)
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);
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}
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assert_eq!(fragment_header.duration(), Some(5.seconds()));
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for i in 0..5 {
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let buffer = h.pull().unwrap();
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if i == 4 {
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assert_eq!(
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buffer.flags(),
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gst::BufferFlags::DELTA_UNIT | gst::BufferFlags::MARKER
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);
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} else {
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assert_eq!(buffer.flags(), gst::BufferFlags::DELTA_UNIT);
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}
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assert_eq!(buffer.pts(), Some(i.seconds() + output_offset));
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if set_dts {
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assert_eq!(buffer.dts(), Some(i.seconds() + output_offset));
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}
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assert_eq!(buffer.duration(), Some(gst::ClockTime::SECOND));
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}
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h.push_event(gst::event::Eos::new());
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let fragment_header = h.pull().unwrap();
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assert_eq!(fragment_header.flags(), gst::BufferFlags::HEADER);
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assert_eq!(fragment_header.pts(), Some(5.seconds() + output_offset));
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if set_dts {
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assert_eq!(fragment_header.dts(), Some(5.seconds() + output_offset));
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}
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assert_eq!(fragment_header.duration(), Some(2.seconds()));
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for i in 5..7 {
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let buffer = h.pull().unwrap();
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if i == 6 {
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assert_eq!(
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buffer.flags(),
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gst::BufferFlags::DELTA_UNIT | gst::BufferFlags::MARKER
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);
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} else {
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assert_eq!(buffer.flags(), gst::BufferFlags::DELTA_UNIT);
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}
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assert_eq!(buffer.pts(), Some(i.seconds() + output_offset));
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if set_dts {
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assert_eq!(buffer.dts(), Some(i.seconds() + output_offset));
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}
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assert_eq!(buffer.duration(), Some(gst::ClockTime::SECOND));
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}
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let ev = h.pull_event().unwrap();
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assert_eq!(ev.type_(), gst::EventType::StreamStart);
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let ev = h.pull_event().unwrap();
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assert_eq!(ev.type_(), gst::EventType::Caps);
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let ev = h.pull_event().unwrap();
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assert_eq!(ev.type_(), gst::EventType::Segment);
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let ev = h.pull_event().unwrap();
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assert_eq!(ev.type_(), gst::EventType::Eos);
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}
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#[test]
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fn test_buffer_flags_single_h264_stream_cmaf() {
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init();
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let caps = gst::Caps::builder("video/x-h264")
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.field("width", 1920i32)
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.field("height", 1080i32)
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.field("framerate", gst::Fraction::new(30, 1))
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.field("stream-format", "avc")
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.field("alignment", "au")
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.field("codec_data", gst::Buffer::with_size(1).unwrap())
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.build();
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test_buffer_flags_single_stream(true, true, caps);
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}
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#[test]
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fn test_buffer_flags_single_h264_stream_iso() {
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init();
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let caps = gst::Caps::builder("video/x-h264")
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.field("width", 1920i32)
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.field("height", 1080i32)
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.field("framerate", gst::Fraction::new(30, 1))
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.field("stream-format", "avc")
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.field("alignment", "au")
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.field("codec_data", gst::Buffer::with_size(1).unwrap())
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.build();
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test_buffer_flags_single_stream(false, true, caps);
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}
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#[test]
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fn test_buffer_flags_single_vp9_stream_iso() {
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init();
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let caps = gst::Caps::builder("video/x-vp9")
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.field("width", 1920i32)
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.field("height", 1080i32)
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.field("framerate", gst::Fraction::new(30, 1))
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.field("profile", "0")
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.field("chroma-format", "4:2:0")
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.field("bit-depth-luma", 8u32)
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.field("bit-depth-chroma", 8u32)
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.field("colorimetry", "bt709")
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.build();
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test_buffer_flags_single_stream(false, false, caps);
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}
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#[test]
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fn test_buffer_flags_multi_stream() {
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init();
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let mut h1 = gst_check::Harness::with_padnames("isofmp4mux", Some("sink_0"), Some("src"));
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let mut h2 = gst_check::Harness::with_element(&h1.element().unwrap(), Some("sink_1"), None);
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// 5s fragment duration
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h1.element()
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.unwrap()
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.set_property("fragment-duration", 5.seconds());
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h1.set_src_caps(
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gst::Caps::builder("video/x-h264")
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.field("width", 1920i32)
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.field("height", 1080i32)
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.field("framerate", gst::Fraction::new(30, 1))
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.field("stream-format", "avc")
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.field("alignment", "au")
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.field("codec_data", gst::Buffer::with_size(1).unwrap())
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.build(),
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);
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h1.play();
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h2.set_src_caps(
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gst::Caps::builder("audio/mpeg")
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.field("mpegversion", 4i32)
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.field("channels", 1i32)
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.field("rate", 44100i32)
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.field("stream-format", "raw")
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.field("base-profile", "lc")
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.field("profile", "lc")
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.field("level", "2")
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.field(
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"codec_data",
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gst::Buffer::from_slice([0x12, 0x08, 0x56, 0xe5, 0x00]),
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)
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.build(),
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);
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h2.play();
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let output_offset = (60 * 60 * 1000).seconds();
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// Push 7 buffers of 1s each, 1st and last buffer without DELTA_UNIT flag
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for i in 0..7 {
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let mut buffer = gst::Buffer::with_size(1).unwrap();
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{
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let buffer = buffer.get_mut().unwrap();
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buffer.set_pts(i.seconds());
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buffer.set_dts(i.seconds());
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buffer.set_duration(gst::ClockTime::SECOND);
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if i != 0 && i != 5 {
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buffer.set_flags(gst::BufferFlags::DELTA_UNIT);
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}
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}
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assert_eq!(h1.push(buffer), Ok(gst::FlowSuccess::Ok));
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let mut buffer = gst::Buffer::with_size(1).unwrap();
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{
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let buffer = buffer.get_mut().unwrap();
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buffer.set_pts(i.seconds());
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buffer.set_dts(i.seconds());
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buffer.set_duration(gst::ClockTime::SECOND);
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}
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assert_eq!(h2.push(buffer), Ok(gst::FlowSuccess::Ok));
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if i == 2 {
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let ev = loop {
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let ev = h1.pull_upstream_event().unwrap();
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if ev.type_() != gst::EventType::Reconfigure
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&& ev.type_() != gst::EventType::Latency
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{
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break ev;
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}
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};
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assert_eq!(ev.type_(), gst::EventType::CustomUpstream);
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assert_eq!(
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gst_video::UpstreamForceKeyUnitEvent::parse(&ev).unwrap(),
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gst_video::UpstreamForceKeyUnitEvent {
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running_time: Some(5.seconds()),
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all_headers: true,
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count: 0
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}
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);
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let ev = loop {
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let ev = h2.pull_upstream_event().unwrap();
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if ev.type_() != gst::EventType::Reconfigure
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&& ev.type_() != gst::EventType::Latency
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{
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break ev;
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}
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};
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assert_eq!(ev.type_(), gst::EventType::CustomUpstream);
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assert_eq!(
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gst_video::UpstreamForceKeyUnitEvent::parse(&ev).unwrap(),
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gst_video::UpstreamForceKeyUnitEvent {
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running_time: Some(5.seconds()),
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all_headers: true,
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count: 0
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}
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);
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}
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}
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let header = h1.pull().unwrap();
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assert_eq!(
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header.flags(),
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gst::BufferFlags::HEADER | gst::BufferFlags::DISCONT
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);
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assert_eq!(header.pts(), Some(gst::ClockTime::ZERO + output_offset));
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assert_eq!(header.dts(), Some(gst::ClockTime::ZERO + output_offset));
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let fragment_header = h1.pull().unwrap();
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assert_eq!(fragment_header.flags(), gst::BufferFlags::HEADER);
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assert_eq!(
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fragment_header.pts(),
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Some(gst::ClockTime::ZERO + output_offset)
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);
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assert_eq!(
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fragment_header.dts(),
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Some(gst::ClockTime::ZERO + output_offset)
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);
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assert_eq!(fragment_header.duration(), Some(5.seconds()));
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for i in 0..5 {
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for j in 0..2 {
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let buffer = h1.pull().unwrap();
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if i == 4 && j == 1 {
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assert_eq!(
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buffer.flags(),
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gst::BufferFlags::DELTA_UNIT | gst::BufferFlags::MARKER
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);
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} else {
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assert_eq!(buffer.flags(), gst::BufferFlags::DELTA_UNIT);
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}
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assert_eq!(buffer.pts(), Some(i.seconds() + output_offset));
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if j == 0 {
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assert_eq!(buffer.dts(), Some(i.seconds() + output_offset));
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} else {
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assert!(buffer.dts().is_none());
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}
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assert_eq!(buffer.duration(), Some(gst::ClockTime::SECOND));
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}
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}
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h1.push_event(gst::event::Eos::new());
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h2.push_event(gst::event::Eos::new());
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let fragment_header = h1.pull().unwrap();
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assert_eq!(fragment_header.flags(), gst::BufferFlags::HEADER);
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assert_eq!(fragment_header.pts(), Some(5.seconds() + output_offset));
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assert_eq!(fragment_header.dts(), Some(5.seconds() + output_offset));
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assert_eq!(fragment_header.duration(), Some(2.seconds()));
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for i in 5..7 {
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for j in 0..2 {
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let buffer = h1.pull().unwrap();
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if i == 6 && j == 1 {
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assert_eq!(
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buffer.flags(),
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gst::BufferFlags::DELTA_UNIT | gst::BufferFlags::MARKER
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);
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} else {
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assert_eq!(buffer.flags(), gst::BufferFlags::DELTA_UNIT);
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}
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assert_eq!(buffer.pts(), Some(i.seconds() + output_offset));
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if j == 0 {
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assert_eq!(buffer.dts(), Some(i.seconds() + output_offset));
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} else {
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assert!(buffer.dts().is_none());
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}
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assert_eq!(buffer.duration(), Some(gst::ClockTime::SECOND));
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}
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}
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let ev = h1.pull_event().unwrap();
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assert_eq!(ev.type_(), gst::EventType::StreamStart);
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let ev = h1.pull_event().unwrap();
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assert_eq!(ev.type_(), gst::EventType::Caps);
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let ev = h1.pull_event().unwrap();
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assert_eq!(ev.type_(), gst::EventType::Segment);
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let ev = h1.pull_event().unwrap();
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assert_eq!(ev.type_(), gst::EventType::Eos);
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}
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#[test]
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fn test_live_timeout() {
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init();
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let mut h1 = gst_check::Harness::with_padnames("isofmp4mux", Some("sink_0"), Some("src"));
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let mut h2 = gst_check::Harness::with_element(&h1.element().unwrap(), Some("sink_1"), None);
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h1.use_testclock();
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// 5s fragment duration
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h1.element()
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.unwrap()
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.set_property("fragment-duration", 5.seconds());
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h1.set_src_caps(
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gst::Caps::builder("video/x-h264")
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.field("width", 1920i32)
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.field("height", 1080i32)
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.field("framerate", gst::Fraction::new(30, 1))
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.field("stream-format", "avc")
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.field("alignment", "au")
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.field("codec_data", gst::Buffer::with_size(1).unwrap())
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.build(),
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);
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h1.play();
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h2.set_src_caps(
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gst::Caps::builder("audio/mpeg")
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.field("mpegversion", 4i32)
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.field("channels", 1i32)
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.field("rate", 44100i32)
|
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.field("stream-format", "raw")
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.field("base-profile", "lc")
|
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.field("profile", "lc")
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.field("level", "2")
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.field(
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"codec_data",
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gst::Buffer::from_slice([0x12, 0x08, 0x56, 0xe5, 0x00]),
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)
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|
.build(),
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);
|
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h2.play();
|
|
|
|
let output_offset = (60 * 60 * 1000).seconds();
|
|
|
|
// Push 7 buffers of 1s each, 1st and last buffer without DELTA_UNIT flag
|
|
for i in 0..7 {
|
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let mut buffer = gst::Buffer::with_size(1).unwrap();
|
|
{
|
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let buffer = buffer.get_mut().unwrap();
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buffer.set_pts(i.seconds());
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buffer.set_dts(i.seconds());
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buffer.set_duration(gst::ClockTime::SECOND);
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if i != 0 && i != 5 {
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buffer.set_flags(gst::BufferFlags::DELTA_UNIT);
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}
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}
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assert_eq!(h1.push(buffer), Ok(gst::FlowSuccess::Ok));
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|
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// Skip buffer 4th and 6th buffer (end of fragment / stream)
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if i == 4 || i == 6 {
|
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continue;
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} else {
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let mut buffer = gst::Buffer::with_size(1).unwrap();
|
|
{
|
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let buffer = buffer.get_mut().unwrap();
|
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buffer.set_pts(i.seconds());
|
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buffer.set_dts(i.seconds());
|
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buffer.set_duration(gst::ClockTime::SECOND);
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}
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assert_eq!(h2.push(buffer), Ok(gst::FlowSuccess::Ok));
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}
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|
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if i == 2 {
|
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let ev = loop {
|
|
let ev = h1.pull_upstream_event().unwrap();
|
|
if ev.type_() != gst::EventType::Reconfigure
|
|
&& ev.type_() != gst::EventType::Latency
|
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{
|
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break ev;
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}
|
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};
|
|
|
|
assert_eq!(ev.type_(), gst::EventType::CustomUpstream);
|
|
assert_eq!(
|
|
gst_video::UpstreamForceKeyUnitEvent::parse(&ev).unwrap(),
|
|
gst_video::UpstreamForceKeyUnitEvent {
|
|
running_time: Some(5.seconds()),
|
|
all_headers: true,
|
|
count: 0
|
|
}
|
|
);
|
|
|
|
let ev = loop {
|
|
let ev = h2.pull_upstream_event().unwrap();
|
|
if ev.type_() != gst::EventType::Reconfigure
|
|
&& ev.type_() != gst::EventType::Latency
|
|
{
|
|
break ev;
|
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}
|
|
};
|
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|
|
assert_eq!(ev.type_(), gst::EventType::CustomUpstream);
|
|
assert_eq!(
|
|
gst_video::UpstreamForceKeyUnitEvent::parse(&ev).unwrap(),
|
|
gst_video::UpstreamForceKeyUnitEvent {
|
|
running_time: Some(5.seconds()),
|
|
all_headers: true,
|
|
count: 0
|
|
}
|
|
);
|
|
}
|
|
}
|
|
|
|
// Advance time and crank the clock: this should bring us to the end of the first fragment
|
|
h1.set_time(5.seconds()).unwrap();
|
|
h1.crank_single_clock_wait().unwrap();
|
|
|
|
let header = h1.pull().unwrap();
|
|
assert_eq!(
|
|
header.flags(),
|
|
gst::BufferFlags::HEADER | gst::BufferFlags::DISCONT
|
|
);
|
|
assert_eq!(header.pts(), Some(gst::ClockTime::ZERO + output_offset));
|
|
assert_eq!(header.dts(), Some(gst::ClockTime::ZERO + output_offset));
|
|
|
|
let fragment_header = h1.pull().unwrap();
|
|
assert_eq!(fragment_header.flags(), gst::BufferFlags::HEADER);
|
|
assert_eq!(
|
|
fragment_header.pts(),
|
|
Some(gst::ClockTime::ZERO + output_offset)
|
|
);
|
|
assert_eq!(
|
|
fragment_header.dts(),
|
|
Some(gst::ClockTime::ZERO + output_offset)
|
|
);
|
|
assert_eq!(fragment_header.duration(), Some(5.seconds()));
|
|
|
|
for i in 0..5 {
|
|
for j in 0..2 {
|
|
// Skip gap events that don't result in buffers
|
|
if j == 1 && i == 4 {
|
|
// Advance time and crank the clock another time. This brings us at the end of the
|
|
// EOS.
|
|
h1.crank_single_clock_wait().unwrap();
|
|
continue;
|
|
}
|
|
|
|
let buffer = h1.pull().unwrap();
|
|
if i == 4 && j == 0 {
|
|
assert_eq!(
|
|
buffer.flags(),
|
|
gst::BufferFlags::DELTA_UNIT | gst::BufferFlags::MARKER
|
|
);
|
|
} else if i == 5 && j == 0 {
|
|
assert_eq!(buffer.flags(), gst::BufferFlags::HEADER);
|
|
} else {
|
|
assert_eq!(buffer.flags(), gst::BufferFlags::DELTA_UNIT);
|
|
}
|
|
|
|
assert_eq!(buffer.pts(), Some(i.seconds() + output_offset));
|
|
|
|
if j == 0 {
|
|
assert_eq!(buffer.dts(), Some(i.seconds() + output_offset));
|
|
} else {
|
|
assert!(buffer.dts().is_none());
|
|
}
|
|
assert_eq!(buffer.duration(), Some(gst::ClockTime::SECOND));
|
|
}
|
|
}
|
|
|
|
h1.push_event(gst::event::Eos::new());
|
|
h2.push_event(gst::event::Eos::new());
|
|
|
|
let fragment_header = h1.pull().unwrap();
|
|
assert_eq!(fragment_header.flags(), gst::BufferFlags::HEADER);
|
|
assert_eq!(fragment_header.pts(), Some(5.seconds() + output_offset));
|
|
assert_eq!(fragment_header.dts(), Some(5.seconds() + output_offset));
|
|
assert_eq!(fragment_header.duration(), Some(2.seconds()));
|
|
|
|
for i in 5..7 {
|
|
for j in 0..2 {
|
|
// Skip gap events that don't result in buffers
|
|
if j == 1 && i == 6 {
|
|
continue;
|
|
}
|
|
|
|
let buffer = h1.pull().unwrap();
|
|
if i == 6 && j == 0 {
|
|
assert_eq!(
|
|
buffer.flags(),
|
|
gst::BufferFlags::DELTA_UNIT | gst::BufferFlags::MARKER
|
|
);
|
|
} else {
|
|
assert_eq!(buffer.flags(), gst::BufferFlags::DELTA_UNIT);
|
|
}
|
|
assert_eq!(buffer.pts(), Some(i.seconds() + output_offset));
|
|
if j == 0 {
|
|
assert_eq!(buffer.dts(), Some(i.seconds() + output_offset));
|
|
} else {
|
|
assert!(buffer.dts().is_none());
|
|
}
|
|
assert_eq!(buffer.duration(), Some(gst::ClockTime::SECOND));
|
|
}
|
|
}
|
|
|
|
let ev = h1.pull_event().unwrap();
|
|
assert_eq!(ev.type_(), gst::EventType::StreamStart);
|
|
let ev = h1.pull_event().unwrap();
|
|
assert_eq!(ev.type_(), gst::EventType::Caps);
|
|
let ev = h1.pull_event().unwrap();
|
|
assert_eq!(ev.type_(), gst::EventType::Segment);
|
|
let ev = h1.pull_event().unwrap();
|
|
assert_eq!(ev.type_(), gst::EventType::Eos);
|
|
}
|
|
|
|
#[test]
|
|
fn test_gap_events() {
|
|
init();
|
|
|
|
let mut h1 = gst_check::Harness::with_padnames("isofmp4mux", Some("sink_0"), Some("src"));
|
|
let mut h2 = gst_check::Harness::with_element(&h1.element().unwrap(), Some("sink_1"), None);
|
|
|
|
h1.use_testclock();
|
|
|
|
// 5s fragment duration
|
|
h1.element()
|
|
.unwrap()
|
|
.set_property("fragment-duration", 5.seconds());
|
|
|
|
h1.set_src_caps(
|
|
gst::Caps::builder("video/x-h264")
|
|
.field("width", 1920i32)
|
|
.field("height", 1080i32)
|
|
.field("framerate", gst::Fraction::new(30, 1))
|
|
.field("stream-format", "avc")
|
|
.field("alignment", "au")
|
|
.field("codec_data", gst::Buffer::with_size(1).unwrap())
|
|
.build(),
|
|
);
|
|
h1.play();
|
|
|
|
h2.set_src_caps(
|
|
gst::Caps::builder("audio/mpeg")
|
|
.field("mpegversion", 4i32)
|
|
.field("channels", 1i32)
|
|
.field("rate", 44100i32)
|
|
.field("stream-format", "raw")
|
|
.field("base-profile", "lc")
|
|
.field("profile", "lc")
|
|
.field("level", "2")
|
|
.field(
|
|
"codec_data",
|
|
gst::Buffer::from_slice([0x12, 0x08, 0x56, 0xe5, 0x00]),
|
|
)
|
|
.build(),
|
|
);
|
|
h2.play();
|
|
|
|
let output_offset = (60 * 60 * 1000).seconds();
|
|
|
|
// Push 7 buffers of 1s each, 1st and last buffer without DELTA_UNIT flag
|
|
for i in 0..7 {
|
|
let mut buffer = gst::Buffer::with_size(1).unwrap();
|
|
{
|
|
let buffer = buffer.get_mut().unwrap();
|
|
buffer.set_pts(i.seconds());
|
|
buffer.set_dts(i.seconds());
|
|
buffer.set_duration(gst::ClockTime::SECOND);
|
|
if i != 0 && i != 5 {
|
|
buffer.set_flags(gst::BufferFlags::DELTA_UNIT);
|
|
}
|
|
}
|
|
assert_eq!(h1.push(buffer), Ok(gst::FlowSuccess::Ok));
|
|
|
|
// Replace buffer 3 and 6 with a gap event
|
|
if i == 3 || i == 6 {
|
|
let ev = gst::event::Gap::builder(i.seconds())
|
|
.duration(gst::ClockTime::SECOND)
|
|
.build();
|
|
assert!(h2.push_event(ev));
|
|
} else {
|
|
let mut buffer = gst::Buffer::with_size(1).unwrap();
|
|
{
|
|
let buffer = buffer.get_mut().unwrap();
|
|
buffer.set_pts(i.seconds());
|
|
buffer.set_dts(i.seconds());
|
|
buffer.set_duration(gst::ClockTime::SECOND);
|
|
}
|
|
assert_eq!(h2.push(buffer), Ok(gst::FlowSuccess::Ok));
|
|
}
|
|
|
|
if i == 2 {
|
|
let ev = loop {
|
|
let ev = h1.pull_upstream_event().unwrap();
|
|
if ev.type_() != gst::EventType::Reconfigure
|
|
&& ev.type_() != gst::EventType::Latency
|
|
{
|
|
break ev;
|
|
}
|
|
};
|
|
|
|
assert_eq!(ev.type_(), gst::EventType::CustomUpstream);
|
|
assert_eq!(
|
|
gst_video::UpstreamForceKeyUnitEvent::parse(&ev).unwrap(),
|
|
gst_video::UpstreamForceKeyUnitEvent {
|
|
running_time: Some(5.seconds()),
|
|
all_headers: true,
|
|
count: 0
|
|
}
|
|
);
|
|
|
|
let ev = loop {
|
|
let ev = h2.pull_upstream_event().unwrap();
|
|
if ev.type_() != gst::EventType::Reconfigure
|
|
&& ev.type_() != gst::EventType::Latency
|
|
{
|
|
break ev;
|
|
}
|
|
};
|
|
|
|
assert_eq!(ev.type_(), gst::EventType::CustomUpstream);
|
|
assert_eq!(
|
|
gst_video::UpstreamForceKeyUnitEvent::parse(&ev).unwrap(),
|
|
gst_video::UpstreamForceKeyUnitEvent {
|
|
running_time: Some(5.seconds()),
|
|
all_headers: true,
|
|
count: 0
|
|
}
|
|
);
|
|
}
|
|
}
|
|
|
|
// Advance time and crank the clock: this should bring us to the end of the first fragment
|
|
h1.set_time(5.seconds()).unwrap();
|
|
h1.crank_single_clock_wait().unwrap();
|
|
|
|
let header = h1.pull().unwrap();
|
|
assert_eq!(
|
|
header.flags(),
|
|
gst::BufferFlags::HEADER | gst::BufferFlags::DISCONT
|
|
);
|
|
assert_eq!(header.pts(), Some(gst::ClockTime::ZERO + output_offset));
|
|
assert_eq!(header.dts(), Some(gst::ClockTime::ZERO + output_offset));
|
|
|
|
let fragment_header = h1.pull().unwrap();
|
|
assert_eq!(fragment_header.flags(), gst::BufferFlags::HEADER);
|
|
assert_eq!(
|
|
fragment_header.pts(),
|
|
Some(gst::ClockTime::ZERO + output_offset)
|
|
);
|
|
assert_eq!(
|
|
fragment_header.dts(),
|
|
Some(gst::ClockTime::ZERO + output_offset)
|
|
);
|
|
assert_eq!(fragment_header.duration(), Some(5.seconds()));
|
|
|
|
for i in 0..5 {
|
|
for j in 0..2 {
|
|
// Skip gap events that don't result in buffers
|
|
if j == 1 && i == 3 {
|
|
continue;
|
|
}
|
|
|
|
let buffer = h1.pull().unwrap();
|
|
if i == 4 && j == 1 {
|
|
assert_eq!(
|
|
buffer.flags(),
|
|
gst::BufferFlags::DELTA_UNIT | gst::BufferFlags::MARKER
|
|
);
|
|
} else {
|
|
assert_eq!(buffer.flags(), gst::BufferFlags::DELTA_UNIT);
|
|
}
|
|
|
|
assert_eq!(buffer.pts(), Some(i.seconds() + output_offset));
|
|
|
|
if j == 0 {
|
|
assert_eq!(buffer.dts(), Some(i.seconds() + output_offset));
|
|
} else {
|
|
assert!(buffer.dts().is_none());
|
|
}
|
|
assert_eq!(buffer.duration(), Some(gst::ClockTime::SECOND));
|
|
}
|
|
}
|
|
|
|
h1.push_event(gst::event::Eos::new());
|
|
h2.push_event(gst::event::Eos::new());
|
|
|
|
let fragment_header = h1.pull().unwrap();
|
|
assert_eq!(fragment_header.flags(), gst::BufferFlags::HEADER);
|
|
assert_eq!(fragment_header.pts(), Some(5.seconds() + output_offset));
|
|
assert_eq!(fragment_header.dts(), Some(5.seconds() + output_offset));
|
|
assert_eq!(fragment_header.duration(), Some(2.seconds()));
|
|
|
|
for i in 5..7 {
|
|
for j in 0..2 {
|
|
// Skip gap events that don't result in buffers
|
|
if j == 1 && i == 6 {
|
|
continue;
|
|
}
|
|
|
|
let buffer = h1.pull().unwrap();
|
|
if i == 6 && j == 0 {
|
|
assert_eq!(
|
|
buffer.flags(),
|
|
gst::BufferFlags::DELTA_UNIT | gst::BufferFlags::MARKER
|
|
);
|
|
} else {
|
|
assert_eq!(buffer.flags(), gst::BufferFlags::DELTA_UNIT);
|
|
}
|
|
assert_eq!(buffer.pts(), Some(i.seconds() + output_offset));
|
|
if j == 0 {
|
|
assert_eq!(buffer.dts(), Some(i.seconds() + output_offset));
|
|
} else {
|
|
assert!(buffer.dts().is_none());
|
|
}
|
|
assert_eq!(buffer.duration(), Some(gst::ClockTime::SECOND));
|
|
}
|
|
}
|
|
|
|
let ev = h1.pull_event().unwrap();
|
|
assert_eq!(ev.type_(), gst::EventType::StreamStart);
|
|
let ev = h1.pull_event().unwrap();
|
|
assert_eq!(ev.type_(), gst::EventType::Caps);
|
|
let ev = h1.pull_event().unwrap();
|
|
assert_eq!(ev.type_(), gst::EventType::Segment);
|
|
let ev = h1.pull_event().unwrap();
|
|
assert_eq!(ev.type_(), gst::EventType::Eos);
|
|
}
|
|
|
|
#[test]
|
|
fn test_single_stream_short_gops() {
|
|
init();
|
|
|
|
let mut h = gst_check::Harness::with_padnames("isofmp4mux", Some("sink_0"), Some("src"));
|
|
|
|
// 5s fragment duration
|
|
h.element()
|
|
.unwrap()
|
|
.set_property("fragment-duration", 5.seconds());
|
|
|
|
h.set_src_caps(
|
|
gst::Caps::builder("video/x-h264")
|
|
.field("width", 1920i32)
|
|
.field("height", 1080i32)
|
|
.field("framerate", gst::Fraction::new(30, 1))
|
|
.field("stream-format", "avc")
|
|
.field("alignment", "au")
|
|
.field("codec_data", gst::Buffer::with_size(1).unwrap())
|
|
.build(),
|
|
);
|
|
h.play();
|
|
|
|
let output_offset = (60 * 60 * 1000).seconds();
|
|
|
|
// Push 8 buffers of 1s each, 1st, 4th and 7th buffer without DELTA_UNIT flag
|
|
for i in 0..8 {
|
|
let mut buffer = gst::Buffer::with_size(1).unwrap();
|
|
{
|
|
let buffer = buffer.get_mut().unwrap();
|
|
buffer.set_pts(i.seconds());
|
|
buffer.set_dts(i.seconds());
|
|
buffer.set_duration(gst::ClockTime::SECOND);
|
|
if i != 0 && i != 3 && i != 6 {
|
|
buffer.set_flags(gst::BufferFlags::DELTA_UNIT);
|
|
}
|
|
}
|
|
assert_eq!(h.push(buffer), Ok(gst::FlowSuccess::Ok));
|
|
|
|
if i == 2 || i == 7 {
|
|
let ev = loop {
|
|
let ev = h.pull_upstream_event().unwrap();
|
|
if ev.type_() != gst::EventType::Reconfigure
|
|
&& ev.type_() != gst::EventType::Latency
|
|
{
|
|
break ev;
|
|
}
|
|
};
|
|
|
|
let fku_time = if i == 2 { 5.seconds() } else { 8.seconds() };
|
|
|
|
assert_eq!(ev.type_(), gst::EventType::CustomUpstream);
|
|
assert_eq!(
|
|
gst_video::UpstreamForceKeyUnitEvent::parse(&ev).unwrap(),
|
|
gst_video::UpstreamForceKeyUnitEvent {
|
|
running_time: Some(fku_time),
|
|
all_headers: true,
|
|
count: 0
|
|
}
|
|
);
|
|
}
|
|
}
|
|
|
|
let header = h.pull().unwrap();
|
|
assert_eq!(
|
|
header.flags(),
|
|
gst::BufferFlags::HEADER | gst::BufferFlags::DISCONT
|
|
);
|
|
assert_eq!(header.pts(), Some(gst::ClockTime::ZERO + output_offset));
|
|
assert_eq!(header.dts(), Some(gst::ClockTime::ZERO + output_offset));
|
|
|
|
let fragment_header = h.pull().unwrap();
|
|
assert_eq!(fragment_header.flags(), gst::BufferFlags::HEADER);
|
|
assert_eq!(
|
|
fragment_header.pts(),
|
|
Some(gst::ClockTime::ZERO + output_offset)
|
|
);
|
|
assert_eq!(
|
|
fragment_header.dts(),
|
|
Some(gst::ClockTime::ZERO + output_offset)
|
|
);
|
|
assert_eq!(fragment_header.duration(), Some(3.seconds()));
|
|
|
|
for i in 0..3 {
|
|
let buffer = h.pull().unwrap();
|
|
if i == 2 {
|
|
assert_eq!(
|
|
buffer.flags(),
|
|
gst::BufferFlags::DELTA_UNIT | gst::BufferFlags::MARKER
|
|
);
|
|
} else {
|
|
assert_eq!(buffer.flags(), gst::BufferFlags::DELTA_UNIT);
|
|
}
|
|
assert_eq!(buffer.pts(), Some(i.seconds() + output_offset));
|
|
assert_eq!(buffer.dts(), Some(i.seconds() + output_offset));
|
|
assert_eq!(buffer.duration(), Some(gst::ClockTime::SECOND));
|
|
}
|
|
|
|
h.push_event(gst::event::Eos::new());
|
|
|
|
let fragment_header = h.pull().unwrap();
|
|
assert_eq!(fragment_header.flags(), gst::BufferFlags::HEADER);
|
|
assert_eq!(fragment_header.pts(), Some(3.seconds() + output_offset));
|
|
assert_eq!(fragment_header.dts(), Some(3.seconds() + output_offset));
|
|
assert_eq!(fragment_header.duration(), Some(5.seconds()));
|
|
|
|
for i in 3..8 {
|
|
let buffer = h.pull().unwrap();
|
|
if i == 7 {
|
|
assert_eq!(
|
|
buffer.flags(),
|
|
gst::BufferFlags::DELTA_UNIT | gst::BufferFlags::MARKER
|
|
);
|
|
} else {
|
|
assert_eq!(buffer.flags(), gst::BufferFlags::DELTA_UNIT);
|
|
}
|
|
assert_eq!(buffer.pts(), Some(i.seconds() + output_offset));
|
|
assert_eq!(buffer.dts(), Some(i.seconds() + output_offset));
|
|
assert_eq!(buffer.duration(), Some(gst::ClockTime::SECOND));
|
|
}
|
|
|
|
let ev = h.pull_event().unwrap();
|
|
assert_eq!(ev.type_(), gst::EventType::StreamStart);
|
|
let ev = h.pull_event().unwrap();
|
|
assert_eq!(ev.type_(), gst::EventType::Caps);
|
|
let ev = h.pull_event().unwrap();
|
|
assert_eq!(ev.type_(), gst::EventType::Segment);
|
|
let ev = h.pull_event().unwrap();
|
|
assert_eq!(ev.type_(), gst::EventType::Eos);
|
|
}
|
|
|
|
#[test]
|
|
fn test_single_stream_long_gops() {
|
|
init();
|
|
|
|
let mut h = gst_check::Harness::with_padnames("isofmp4mux", Some("sink_0"), Some("src"));
|
|
|
|
// 5s fragment duration
|
|
h.element()
|
|
.unwrap()
|
|
.set_property("fragment-duration", 5.seconds());
|
|
|
|
h.set_src_caps(
|
|
gst::Caps::builder("video/x-h264")
|
|
.field("width", 1920i32)
|
|
.field("height", 1080i32)
|
|
.field("framerate", gst::Fraction::new(30, 1))
|
|
.field("stream-format", "avc")
|
|
.field("alignment", "au")
|
|
.field("codec_data", gst::Buffer::with_size(1).unwrap())
|
|
.build(),
|
|
);
|
|
h.play();
|
|
|
|
let output_offset = (60 * 60 * 1000).seconds();
|
|
|
|
// Push 10 buffers of 1s each, 1st and 7th buffer without DELTA_UNIT flag
|
|
for i in 0..10 {
|
|
let mut buffer = gst::Buffer::with_size(1).unwrap();
|
|
{
|
|
let buffer = buffer.get_mut().unwrap();
|
|
buffer.set_pts(i.seconds());
|
|
buffer.set_dts(i.seconds());
|
|
buffer.set_duration(gst::ClockTime::SECOND);
|
|
if i != 0 && i != 6 {
|
|
buffer.set_flags(gst::BufferFlags::DELTA_UNIT);
|
|
}
|
|
}
|
|
assert_eq!(h.push(buffer), Ok(gst::FlowSuccess::Ok));
|
|
|
|
if i == 2 || i == 7 {
|
|
let ev = loop {
|
|
let ev = h.pull_upstream_event().unwrap();
|
|
if ev.type_() != gst::EventType::Reconfigure
|
|
&& ev.type_() != gst::EventType::Latency
|
|
{
|
|
break ev;
|
|
}
|
|
};
|
|
|
|
let fku_time = if i == 2 { 5.seconds() } else { 11.seconds() };
|
|
|
|
assert_eq!(ev.type_(), gst::EventType::CustomUpstream);
|
|
assert_eq!(
|
|
gst_video::UpstreamForceKeyUnitEvent::parse(&ev).unwrap(),
|
|
gst_video::UpstreamForceKeyUnitEvent {
|
|
running_time: Some(fku_time),
|
|
all_headers: true,
|
|
count: 0
|
|
}
|
|
);
|
|
}
|
|
}
|
|
|
|
let header = h.pull().unwrap();
|
|
assert_eq!(
|
|
header.flags(),
|
|
gst::BufferFlags::HEADER | gst::BufferFlags::DISCONT
|
|
);
|
|
assert_eq!(header.pts(), Some(gst::ClockTime::ZERO + output_offset));
|
|
assert_eq!(header.dts(), Some(gst::ClockTime::ZERO + output_offset));
|
|
|
|
let fragment_header = h.pull().unwrap();
|
|
assert_eq!(fragment_header.flags(), gst::BufferFlags::HEADER);
|
|
assert_eq!(
|
|
fragment_header.pts(),
|
|
Some(gst::ClockTime::ZERO + output_offset)
|
|
);
|
|
assert_eq!(
|
|
fragment_header.dts(),
|
|
Some(gst::ClockTime::ZERO + output_offset)
|
|
);
|
|
assert_eq!(fragment_header.duration(), Some(6.seconds()));
|
|
|
|
for i in 0..6 {
|
|
let buffer = h.pull().unwrap();
|
|
if i == 5 {
|
|
assert_eq!(
|
|
buffer.flags(),
|
|
gst::BufferFlags::DELTA_UNIT | gst::BufferFlags::MARKER
|
|
);
|
|
} else {
|
|
assert_eq!(buffer.flags(), gst::BufferFlags::DELTA_UNIT);
|
|
}
|
|
assert_eq!(buffer.pts(), Some(i.seconds() + output_offset));
|
|
assert_eq!(buffer.dts(), Some(i.seconds() + output_offset));
|
|
assert_eq!(buffer.duration(), Some(gst::ClockTime::SECOND));
|
|
}
|
|
|
|
h.push_event(gst::event::Eos::new());
|
|
|
|
let fragment_header = h.pull().unwrap();
|
|
assert_eq!(fragment_header.flags(), gst::BufferFlags::HEADER);
|
|
assert_eq!(fragment_header.pts(), Some(6.seconds() + output_offset));
|
|
assert_eq!(fragment_header.dts(), Some(6.seconds() + output_offset));
|
|
assert_eq!(fragment_header.duration(), Some(4.seconds()));
|
|
|
|
for i in 6..10 {
|
|
let buffer = h.pull().unwrap();
|
|
if i == 9 {
|
|
assert_eq!(
|
|
buffer.flags(),
|
|
gst::BufferFlags::DELTA_UNIT | gst::BufferFlags::MARKER
|
|
);
|
|
} else {
|
|
assert_eq!(buffer.flags(), gst::BufferFlags::DELTA_UNIT);
|
|
}
|
|
assert_eq!(buffer.pts(), Some(i.seconds() + output_offset));
|
|
assert_eq!(buffer.dts(), Some(i.seconds() + output_offset));
|
|
assert_eq!(buffer.duration(), Some(gst::ClockTime::SECOND));
|
|
}
|
|
|
|
let ev = h.pull_event().unwrap();
|
|
assert_eq!(ev.type_(), gst::EventType::StreamStart);
|
|
let ev = h.pull_event().unwrap();
|
|
assert_eq!(ev.type_(), gst::EventType::Caps);
|
|
let ev = h.pull_event().unwrap();
|
|
assert_eq!(ev.type_(), gst::EventType::Segment);
|
|
let ev = h.pull_event().unwrap();
|
|
assert_eq!(ev.type_(), gst::EventType::Eos);
|
|
}
|
|
|
|
#[test]
|
|
fn test_buffer_multi_stream_short_gops() {
|
|
init();
|
|
|
|
let mut h1 = gst_check::Harness::with_padnames("isofmp4mux", Some("sink_0"), Some("src"));
|
|
let mut h2 = gst_check::Harness::with_element(&h1.element().unwrap(), Some("sink_1"), None);
|
|
|
|
// 5s fragment duration
|
|
h1.element()
|
|
.unwrap()
|
|
.set_property("fragment-duration", 5.seconds());
|
|
|
|
h1.set_src_caps(
|
|
gst::Caps::builder("video/x-h264")
|
|
.field("width", 1920i32)
|
|
.field("height", 1080i32)
|
|
.field("framerate", gst::Fraction::new(30, 1))
|
|
.field("stream-format", "avc")
|
|
.field("alignment", "au")
|
|
.field("codec_data", gst::Buffer::with_size(1).unwrap())
|
|
.build(),
|
|
);
|
|
h1.play();
|
|
|
|
h2.set_src_caps(
|
|
gst::Caps::builder("audio/mpeg")
|
|
.field("mpegversion", 4i32)
|
|
.field("channels", 1i32)
|
|
.field("rate", 44100i32)
|
|
.field("stream-format", "raw")
|
|
.field("base-profile", "lc")
|
|
.field("profile", "lc")
|
|
.field("level", "2")
|
|
.field(
|
|
"codec_data",
|
|
gst::Buffer::from_slice([0x12, 0x08, 0x56, 0xe5, 0x00]),
|
|
)
|
|
.build(),
|
|
);
|
|
h2.play();
|
|
|
|
let output_offset = (60 * 60 * 1000).seconds();
|
|
|
|
// Push 8 buffers of 1s each, 1st, 4th and 7th buffer without DELTA_UNIT flag
|
|
for i in 0..8 {
|
|
let mut buffer = gst::Buffer::with_size(1).unwrap();
|
|
{
|
|
let buffer = buffer.get_mut().unwrap();
|
|
buffer.set_pts(i.seconds());
|
|
buffer.set_dts(i.seconds());
|
|
buffer.set_duration(gst::ClockTime::SECOND);
|
|
if i != 0 && i != 3 && i != 6 {
|
|
buffer.set_flags(gst::BufferFlags::DELTA_UNIT);
|
|
}
|
|
}
|
|
assert_eq!(h1.push(buffer), Ok(gst::FlowSuccess::Ok));
|
|
|
|
let mut buffer = gst::Buffer::with_size(1).unwrap();
|
|
{
|
|
let buffer = buffer.get_mut().unwrap();
|
|
buffer.set_pts(i.seconds());
|
|
buffer.set_dts(i.seconds());
|
|
buffer.set_duration(gst::ClockTime::SECOND);
|
|
}
|
|
assert_eq!(h2.push(buffer), Ok(gst::FlowSuccess::Ok));
|
|
|
|
if i == 2 || i == 7 {
|
|
let ev = loop {
|
|
let ev = h1.pull_upstream_event().unwrap();
|
|
if ev.type_() != gst::EventType::Reconfigure
|
|
&& ev.type_() != gst::EventType::Latency
|
|
{
|
|
break ev;
|
|
}
|
|
};
|
|
|
|
let fku_time = if i == 2 { 5.seconds() } else { 8.seconds() };
|
|
|
|
assert_eq!(ev.type_(), gst::EventType::CustomUpstream);
|
|
assert_eq!(
|
|
gst_video::UpstreamForceKeyUnitEvent::parse(&ev).unwrap(),
|
|
gst_video::UpstreamForceKeyUnitEvent {
|
|
running_time: Some(fku_time),
|
|
all_headers: true,
|
|
count: 0
|
|
}
|
|
);
|
|
|
|
let ev = loop {
|
|
let ev = h2.pull_upstream_event().unwrap();
|
|
if ev.type_() != gst::EventType::Reconfigure
|
|
&& ev.type_() != gst::EventType::Latency
|
|
{
|
|
break ev;
|
|
}
|
|
};
|
|
|
|
assert_eq!(ev.type_(), gst::EventType::CustomUpstream);
|
|
assert_eq!(
|
|
gst_video::UpstreamForceKeyUnitEvent::parse(&ev).unwrap(),
|
|
gst_video::UpstreamForceKeyUnitEvent {
|
|
running_time: Some(fku_time),
|
|
all_headers: true,
|
|
count: 0
|
|
}
|
|
);
|
|
}
|
|
}
|
|
|
|
let header = h1.pull().unwrap();
|
|
assert_eq!(
|
|
header.flags(),
|
|
gst::BufferFlags::HEADER | gst::BufferFlags::DISCONT
|
|
);
|
|
assert_eq!(header.pts(), Some(gst::ClockTime::ZERO + output_offset));
|
|
assert_eq!(header.dts(), Some(gst::ClockTime::ZERO + output_offset));
|
|
|
|
let fragment_header = h1.pull().unwrap();
|
|
assert_eq!(fragment_header.flags(), gst::BufferFlags::HEADER);
|
|
assert_eq!(
|
|
fragment_header.pts(),
|
|
Some(gst::ClockTime::ZERO + output_offset)
|
|
);
|
|
assert_eq!(
|
|
fragment_header.dts(),
|
|
Some(gst::ClockTime::ZERO + output_offset)
|
|
);
|
|
assert_eq!(fragment_header.duration(), Some(3.seconds()));
|
|
|
|
for i in 0..3 {
|
|
for j in 0..2 {
|
|
let buffer = h1.pull().unwrap();
|
|
if i == 2 && j == 1 {
|
|
assert_eq!(
|
|
buffer.flags(),
|
|
gst::BufferFlags::DELTA_UNIT | gst::BufferFlags::MARKER
|
|
);
|
|
} else {
|
|
assert_eq!(buffer.flags(), gst::BufferFlags::DELTA_UNIT);
|
|
}
|
|
|
|
assert_eq!(buffer.pts(), Some(i.seconds() + output_offset));
|
|
|
|
if j == 0 {
|
|
assert_eq!(buffer.dts(), Some(i.seconds() + output_offset));
|
|
} else {
|
|
assert!(buffer.dts().is_none());
|
|
}
|
|
assert_eq!(buffer.duration(), Some(gst::ClockTime::SECOND));
|
|
}
|
|
}
|
|
|
|
h1.push_event(gst::event::Eos::new());
|
|
h2.push_event(gst::event::Eos::new());
|
|
|
|
let fragment_header = h1.pull().unwrap();
|
|
assert_eq!(fragment_header.flags(), gst::BufferFlags::HEADER);
|
|
assert_eq!(fragment_header.pts(), Some(3.seconds() + output_offset));
|
|
assert_eq!(fragment_header.dts(), Some(3.seconds() + output_offset));
|
|
assert_eq!(fragment_header.duration(), Some(5.seconds()));
|
|
|
|
for i in 3..8 {
|
|
for j in 0..2 {
|
|
let buffer = h1.pull().unwrap();
|
|
if i == 7 && j == 1 {
|
|
assert_eq!(
|
|
buffer.flags(),
|
|
gst::BufferFlags::DELTA_UNIT | gst::BufferFlags::MARKER
|
|
);
|
|
} else {
|
|
assert_eq!(buffer.flags(), gst::BufferFlags::DELTA_UNIT);
|
|
}
|
|
assert_eq!(buffer.pts(), Some(i.seconds() + output_offset));
|
|
if j == 0 {
|
|
assert_eq!(buffer.dts(), Some(i.seconds() + output_offset));
|
|
} else {
|
|
assert!(buffer.dts().is_none());
|
|
}
|
|
assert_eq!(buffer.duration(), Some(gst::ClockTime::SECOND));
|
|
}
|
|
}
|
|
|
|
let ev = h1.pull_event().unwrap();
|
|
assert_eq!(ev.type_(), gst::EventType::StreamStart);
|
|
let ev = h1.pull_event().unwrap();
|
|
assert_eq!(ev.type_(), gst::EventType::Caps);
|
|
let ev = h1.pull_event().unwrap();
|
|
assert_eq!(ev.type_(), gst::EventType::Segment);
|
|
let ev = h1.pull_event().unwrap();
|
|
assert_eq!(ev.type_(), gst::EventType::Eos);
|
|
}
|