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More tweaks to layer switching.

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I'm not seeing any non-keyframe spatial sync frames, so simplify
the code by only switching spatial layers on keyframes.
This commit is contained in:
Juliusz Chroboczek 2021-08-05 00:03:42 +02:00
parent d29f6d6e5d
commit 6aa7a9394a
1 changed files with 14 additions and 21 deletions
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25
rtpconn/rtpconn.go
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@ -231,9 +231,10 @@ func (down *rtpDownTrack) Write(buf []byte) (int, error) {
layer := down.getLayerInfo() layer := down.getLayerInfo()
// increase eagerly if this is the first time we see a given layer
if flags.Tid > layer.maxTid || flags.Sid > layer.maxSid { if flags.Tid > layer.maxTid || flags.Sid > layer.maxSid {
if flags.Tid > layer.maxTid { if flags.Tid > layer.maxTid {
// increase eagerly if this is the first time we
// see a given layer
if layer.tid == layer.maxTid { if layer.tid == layer.maxTid {
layer.wantedTid = flags.Tid layer.wantedTid = flags.Tid
layer.tid = flags.Tid layer.tid = flags.Tid
@ -253,33 +254,25 @@ func (down *rtpDownTrack) Write(buf []byte) (int, error) {
} }
if flags.Start && (layer.tid != layer.wantedTid) { if flags.Start && (layer.tid != layer.wantedTid) {
if layer.wantedTid < layer.tid || flags.TidUpSync { if flags.Keyframe {
layer.tid = layer.wantedTid layer.tid = layer.wantedTid
down.setLayerInfo(layer) down.setLayerInfo(layer)
} else if layer.wantedTid < layer.tid {
layer.tid = layer.wantedTid
down.setLayerInfo(layer)
} else if flags.TidUpSync && flags.Tid <= layer.wantedTid {
layer.tid = flags.Tid
down.setLayerInfo(layer)
} }
} }
if flags.Start && (layer.sid != layer.wantedSid) { if flags.Start && (layer.sid != layer.wantedSid) {
if layer.wantedSid < layer.sid {
if flags.Keyframe { if flags.Keyframe {
layer.sid = layer.wantedSid layer.sid = layer.wantedSid
down.setLayerInfo(layer) down.setLayerInfo(layer)
} else { } else {
down.remote.RequestKeyframe() down.remote.RequestKeyframe()
} }
} else if layer.wantedSid > layer.sid {
if flags.Keyframe {
layer.sid = layer.wantedSid
down.setLayerInfo(layer)
} else if flags.Sid == layer.sid + 1 {
if flags.SidUpSync {
layer.sid = layer.sid + 1
down.setLayerInfo(layer)
} else {
down.remote.RequestKeyframe()
}
}
}
} }
if flags.Tid > layer.tid || flags.Sid > layer.sid || if flags.Tid > layer.tid || flags.Sid > layer.sid ||