abscapturetimeextension_test.go

// SPDX-FileCopyrightText: 2023 The Pion community <https://pion.ly>
// SPDX-License-Identifier: MIT

package rtp

import (
	"testing"
	"time"
)

func TestAbsCaptureTimeExtension_Roundtrip(t *testing.T) {
	t0 := time.Now()
	e1 := NewAbsCaptureTimeExtension(t0)
	b1, err1 := e1.Marshal()
	if err1 != nil {
		t.Fatal(err1)
	}
	var o1 AbsCaptureTimeExtension
	if err := o1.Unmarshal(b1); err != nil {
		t.Fatal(err)
	}
	dt1 := o1.CaptureTime().Sub(t0).Seconds()
	if dt1 < -0.001 || dt1 > 0.001 {
		t.Fatalf("timestamp differs, want %v got %v (dt=%f)", t0, o1.CaptureTime(), dt1)
	}
	if o1.EstimatedCaptureClockOffsetDuration() != nil {
		t.Fatalf("duration differs, want nil got %d", o1.EstimatedCaptureClockOffsetDuration())
	}

	e2 := NewAbsCaptureTimeExtensionWithCaptureClockOffset(t0, 1250*time.Millisecond)
	b2, err2 := e2.Marshal()
	if err2 != nil {
		t.Fatal(err2)
	}
	var o2 AbsCaptureTimeExtension
	if err := o2.Unmarshal(b2); err != nil {
		t.Fatal(err)
	}
	dt2 := o1.CaptureTime().Sub(t0).Seconds()
	if dt2 < -0.001 || dt2 > 0.001 {
		t.Fatalf("timestamp differs, want %v got %v (dt=%f)", t0, o2.CaptureTime(), dt2)
	}
	if *o2.EstimatedCaptureClockOffsetDuration() != 1250*time.Millisecond {
		t.Fatalf("duration differs, want 250ms got %d", *o2.EstimatedCaptureClockOffsetDuration())
	}
}