mirror of
https://github.com/AlexxIT/go2rtc.git
synced 2025-10-05 00:12:48 +08:00
82 lines
1.4 KiB
Go
82 lines
1.4 KiB
Go
package core
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import (
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"crypto/rand"
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"runtime"
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"strconv"
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"strings"
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"time"
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)
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const (
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BufferSize = 64 * 1024 // 64K
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ConnDialTimeout = time.Second * 3
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ConnDeadline = time.Second * 5
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ProbeTimeout = time.Second * 3
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)
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// Now90000 - timestamp for Video (clock rate = 90000 samples per second)
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func Now90000() uint32 {
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return uint32(time.Duration(time.Now().UnixNano()) * 90000 / time.Second)
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}
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const symbols = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_"
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// RandString base10 - numbers, base16 - hex, base36 - digits+letters
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// base64 - URL safe symbols, base0 - crypto random
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func RandString(size, base byte) string {
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b := make([]byte, size)
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if _, err := rand.Read(b); err != nil {
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panic(err)
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}
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if base == 0 {
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return string(b)
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}
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for i := byte(0); i < size; i++ {
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b[i] = symbols[b[i]%base]
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}
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return string(b)
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}
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func Any(errs ...error) error {
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for _, err := range errs {
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if err != nil {
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return err
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}
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}
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return nil
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}
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func Between(s, sub1, sub2 string) string {
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i := strings.Index(s, sub1)
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if i < 0 {
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return ""
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}
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s = s[i+len(sub1):]
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if i = strings.Index(s, sub2); i >= 0 {
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return s[:i]
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}
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return s
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}
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func Atoi(s string) (i int) {
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if s != "" {
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i, _ = strconv.Atoi(s)
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}
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return
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}
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func Assert(ok bool) {
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if !ok {
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_, file, line, _ := runtime.Caller(1)
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panic(file + ":" + strconv.Itoa(line))
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}
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}
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func Caller() string {
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_, file, line, _ := runtime.Caller(1)
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return file + ":" + strconv.Itoa(line)
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}
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