test hls ll

format/fmp4/fmp4io/marshal.go

@@ -0,0 +1,64 @@
+package fmp4io
+
+import (
+	"math"
+	"time"
+
+	"github.com/deepch/vdk/utils/bits/pio"
+)
+
+func GetTime32(b []byte) (t time.Time) {
+	sec := pio.U32BE(b)
+	if sec != 0 {
+		t = time.Date(1904, time.January, 1, 0, 0, 0, 0, time.UTC)
+		t = t.Add(time.Second * time.Duration(sec))
+	}
+	return
+}
+
+func PutTime32(b []byte, t time.Time) {
+	var sec uint32
+	if !t.IsZero() {
+		dur := t.Sub(time.Date(1904, time.January, 1, 0, 0, 0, 0, time.UTC))
+		sec = uint32(dur / time.Second)
+	}
+	pio.PutU32BE(b, sec)
+}
+
+func GetTime64(b []byte) (t time.Time) {
+	sec := pio.U64BE(b)
+	if sec != 0 {
+		t = time.Date(1904, time.January, 1, 0, 0, 0, 0, time.UTC)
+		t = t.Add(time.Second * time.Duration(sec))
+	}
+	return
+}
+
+func PutTime64(b []byte, t time.Time) {
+	var sec uint64
+	if !t.IsZero() {
+		dur := t.Sub(time.Date(1904, time.January, 1, 0, 0, 0, 0, time.UTC))
+		sec = uint64(dur / time.Second)
+	}
+	pio.PutU64BE(b, sec)
+}
+
+func PutFixed16(b []byte, f float64) {
+	intpart, fracpart := math.Modf(f)
+	b[0] = uint8(intpart)
+	b[1] = uint8(fracpart * 256.0)
+}
+
+func GetFixed16(b []byte) float64 {
+	return float64(b[0]) + float64(b[1])/256.0
+}
+
+func PutFixed32(b []byte, f float64) {
+	intpart, fracpart := math.Modf(f)
+	pio.PutU16BE(b[0:2], uint16(intpart))
+	pio.PutU16BE(b[2:4], uint16(fracpart*65536.0))
+}
+
+func GetFixed32(b []byte) float64 {
+	return float64(pio.U16BE(b[0:2])) + float64(pio.U16BE(b[2:4]))/65536.0
+}