mirror of
https://github.com/aler9/gortsplib
synced 2025-10-05 23:26:54 +08:00
141 lines
3.0 KiB
Go
141 lines
3.0 KiB
Go
package rtptime
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import (
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"testing"
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"time"
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"github.com/pion/rtp"
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"github.com/stretchr/testify/require"
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)
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func TestDecoderNegativeDiff(t *testing.T) {
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i := uint32(0)
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d := newGlobalDecoderTrackData(0, 90000, i)
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i += 90000 * 2
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pts := d.decode(i)
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require.Equal(t, 2*time.Second, pts)
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i -= 90000 * 1
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pts = d.decode(i)
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require.Equal(t, 1*time.Second, pts)
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i += 90000 * 2
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pts = d.decode(i)
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require.Equal(t, 3*time.Second, pts)
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}
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func TestDecoderOverflow(t *testing.T) {
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secs := time.Duration(0)
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i := uint32(0xFFFFFFFF - 90000 + 1)
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d := newGlobalDecoderTrackData(0, 90000, i)
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const stride = 1500
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lim := uint32(uint64(0xFFFFFFFF + 1 - (stride * 90000)))
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for n := 0; n < 100; n++ {
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// overflow
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i += 90000 * stride
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secs += stride
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pts := d.decode(i)
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require.Equal(t, secs*time.Second, pts)
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// reach 2^32 slowly
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secs += stride
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i += 90000 * stride
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for ; i < lim; i += 90000 * stride {
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pts = d.decode(i)
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require.Equal(t, secs*time.Second, pts)
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secs += stride
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}
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}
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}
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func TestDecoderOverflowAndBack(t *testing.T) {
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d := newGlobalDecoderTrackData(0, 90000, 0xFFFFFFFF-90000+1)
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pts := d.decode(90000)
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require.Equal(t, 2*time.Second, pts)
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pts = d.decode(0xFFFFFFFF - 90000 + 1)
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require.Equal(t, time.Duration(0), pts)
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pts = d.decode(0xFFFFFFFF - 90000 + 1 - 90000)
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require.Equal(t, -1*time.Second, pts)
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pts = d.decode(0xFFFFFFFF - 90000 + 1)
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require.Equal(t, time.Duration(0), pts)
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pts = d.decode(90000)
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require.Equal(t, 2*time.Second, pts)
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}
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func BenchmarkDecoder(b *testing.B) {
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for i := 0; i < b.N; i++ {
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func() {
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n := uint32(0)
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d := newGlobalDecoderTrackData(0, 90000, n)
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for j := 0; j < 200; j++ {
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if (j % 2) == 0 {
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n += 90000
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} else {
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n -= 45000
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}
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d.decode(n)
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}
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}()
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}
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}
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type dummyTrack struct {
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clockRate int
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ptsEqualsDTS bool
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}
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func (t *dummyTrack) ClockRate() int {
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return t.clockRate
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}
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func (t *dummyTrack) PTSEqualsDTS(*rtp.Packet) bool {
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return t.ptsEqualsDTS
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}
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func TestGlobalDecoder(t *testing.T) {
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g := NewGlobalDecoder()
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t1 := &dummyTrack{clockRate: 90000}
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t2 := &dummyTrack{clockRate: 48000, ptsEqualsDTS: true}
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timeNow = func() time.Time {
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return time.Date(2008, 0o5, 20, 22, 15, 20, 0, time.UTC)
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}
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_, ok := g.Decode(t1, &rtp.Packet{})
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require.Equal(t, false, ok)
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t1.ptsEqualsDTS = true
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pts, ok := g.Decode(t1, &rtp.Packet{Header: rtp.Header{Timestamp: 22500}})
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require.Equal(t, true, ok)
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require.Equal(t, time.Duration(0), pts)
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timeNow = func() time.Time {
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return time.Date(2008, 0o5, 20, 22, 15, 21, 0, time.UTC)
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}
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pts, ok = g.Decode(t1, &rtp.Packet{Header: rtp.Header{Timestamp: 22500 + 90000}})
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require.Equal(t, true, ok)
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require.Equal(t, 1*time.Second, pts)
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timeNow = func() time.Time {
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return time.Date(2008, 0o5, 20, 22, 15, 25, 0, time.UTC)
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}
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pts, ok = g.Decode(t2, &rtp.Packet{Header: rtp.Header{Timestamp: 33100}})
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require.Equal(t, true, ok)
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require.Equal(t, 5*time.Second, pts)
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pts, ok = g.Decode(t2, &rtp.Packet{Header: rtp.Header{Timestamp: 33100 + 48000}})
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require.Equal(t, true, ok)
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require.Equal(t, 6*time.Second, pts)
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}
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