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Increase minimum size of packet cache.

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Now that we cache keyframes, it is worth keeping some history
even when latency is low.
This commit is contained in:
Juliusz Chroboczek 2020-10-03 15:53:16 +02:00
parent a50e9c6771
commit 67a821ea75
1 changed files with 13 additions and 5 deletions
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18
rtpconn/rtpconn.go
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@ -418,7 +418,7 @@ func newUpConn(c group.Client, id string) (*rtpUpConnection, error) {
track := &rtpUpTrack{
track: remote,
label: label,
cache: packetcache.New(32),
cache: packetcache.New(minPacketCache(remote)),
rate: estimator.New(time.Second),
jitter: jitter.New(remote.Codec().ClockRate),
localCh: make(chan localTrackAction, 2),
@ -972,6 +972,13 @@ func handleReport(track *rtpDownTrack, report rtcp.ReceptionReport, jiffies uint
}
}
func minPacketCache(track *webrtc.Track) int {
if track.Kind() == webrtc.RTPCodecTypeVideo {
return 128
}
return 24
}
func updateUpTrack(track *rtpUpTrack) {
now := rtptime.Jiffies()
@ -993,11 +1000,12 @@ func updateUpTrack(track *rtpUpTrack) {
}
_, r := track.rate.Estimate()
packets := int((uint64(r) * maxrto * 4) / rtptime.JiffiesPerSec)
if packets < 32 {
packets = 32
min := minPacketCache(track.track)
if packets < min {
packets = min
}
if packets > 256 {
packets = 256
if packets > 1024 {
packets = 1024
}
track.cache.ResizeCond(packets)
}