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Update go2rtc candidates processing

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This commit is contained in:
Alexey Khit
2023-03-04 06:25:30 +03:00
parent d805d560b9
commit 9ab9412c95
7 changed files with 49 additions and 28 deletions
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pkg/webrtc/helpers.go
+13 -5
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@@ -159,14 +159,22 @@ func MimeType(codec *streamer.Codec) string {
panic("not implemented")
}
const PriorityHost = (1 << 24) * uint32(126)
// 4.1.2.2. Guidelines for Choosing Type and Local Preferences
// The RECOMMENDED values are 126 for host candidates, 100
// for server reflexive candidates, 110 for peer reflexive candidates,
// and 0 for relayed candidates.
// We use new priority 120 for Manual Host. It is lower than real Host,
// but more then any other candidates.
const PriorityManualHost = (1 << 24) * uint32(120)
const PriorityLocalUDP = (1 << 8) * uint32(65535)
const PriorityLocalTCPPassive = (1 << 8) * uint32((1<<13)*4+8191)
const PriorityComponentRTP = uint32(256 - ice.ComponentRTP)
func CandidateHostUDP(host string, port int) string {
func CandidateManualHostUDP(host string, port int) string {
foundation := crc32.ChecksumIEEE([]byte("host" + host + "udp4"))
priority := PriorityHost + PriorityLocalUDP + PriorityComponentRTP
priority := PriorityManualHost + PriorityLocalUDP + PriorityComponentRTP
// 1. Foundation
// 2. Component, always 1 because RTP
@@ -181,9 +189,9 @@ func CandidateHostUDP(host string, port int) string {
)
}
func CandidateHostTCPPassive(address string, port int) string {
func CandidateManualHostTCPPassive(address string, port int) string {
foundation := crc32.ChecksumIEEE([]byte("host" + address + "tcp4"))
priority := PriorityHost + PriorityLocalTCPPassive + PriorityComponentRTP
priority := PriorityManualHost + PriorityLocalTCPPassive + PriorityComponentRTP
return fmt.Sprintf(
"candidate:%d 1 tcp %d %s %d typ host tcptype passive",