Ready-to-use SRT / WebRTC / RTSP / RTMP / LL-HLS media server and media proxy that allows to read, publish, proxy, record and playback video and audio streams.
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package mpegtstimedec
import (
"testing"
"time"
"github.com/stretchr/testify/require"
)
func TestNegativeDiff(t *testing.T) {
d := New(64523434)
ts := d.Decode(64523434 - 90000)
require.Equal(t, -1*time.Second, ts)
ts = d.Decode(64523434)
require.Equal(t, time.Duration(0), ts)
ts = d.Decode(64523434 + 90000*2)
require.Equal(t, 2*time.Second, ts)
ts = d.Decode(64523434 + 90000)
require.Equal(t, 1*time.Second, ts)
}
func TestOverflow(t *testing.T) {
d := New(0x1FFFFFFFF - 20)
i := int64(0x1FFFFFFFF - 20)
secs := time.Duration(0)
const stride = 150
lim := int64(uint64(0x1FFFFFFFF - (stride * 90000)))
for n := 0; n < 100; n++ {
// overflow
i += 90000 * stride
secs += stride
ts := d.Decode(i)
require.Equal(t, secs*time.Second, ts)
// reach 2^32 slowly
secs += stride
i += 90000 * stride
for ; i < lim; i += 90000 * stride {
ts = d.Decode(i)
require.Equal(t, secs*time.Second, ts)
secs += stride
}
}
}
func TestOverflowAndBack(t *testing.T) {
d := New(0x1FFFFFFFF - 90000 + 1)
ts := d.Decode(0x1FFFFFFFF - 90000 + 1)
require.Equal(t, time.Duration(0), ts)
ts = d.Decode(90000)
require.Equal(t, 2*time.Second, ts)
ts = d.Decode(0x1FFFFFFFF - 90000 + 1)
require.Equal(t, time.Duration(0), ts)
ts = d.Decode(0x1FFFFFFFF - 90000*2 + 1)
require.Equal(t, -1*time.Second, ts)
ts = d.Decode(0x1FFFFFFFF - 90000 + 1)
require.Equal(t, time.Duration(0), ts)
ts = d.Decode(90000)
require.Equal(t, 2*time.Second, ts)
}