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Enhance SPS/PPS handling for main stream in gortsplib: add fallback for missing SDP

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cedricve
2026-02-26 15:21:54 +00:00
parent a1368361e4
commit f3c1cb9b82
2 changed files with 22 additions and 1 deletions
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3
.gitignore vendored
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@@ -14,4 +14,5 @@ machinery/test*
machinery/init-dev.sh
machinery/.env.local
machinery/vendor
deployments/docker/private-docker-compose.yaml
deployments/docker/private-docker-compose.yaml
video.mp4

20
machinery/src/capture/gortsplib.go
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@@ -695,14 +695,34 @@ func (g *Golibrtsp) Start(ctx context.Context, streamType string, queue *packets
g.Streams[g.VideoH264Index].FPS = fps
log.Log.Debug(fmt.Sprintf("capture.golibrtsp.Start(%s): Final FPS=%.2f", streamType, fps))
g.VideoH264Forma.SPS = nalu
if streamType == "main" && len(nalu) > 0 {
// Fallback: store SPS from in-band NALUs when SDP was missing it.
configuration.Config.Capture.IPCamera.SPSNALUs = [][]byte{nalu}
}
}
case h264.NALUTypePPS:
g.VideoH264Forma.PPS = nalu
if streamType == "main" && len(nalu) > 0 {
// Fallback: store PPS from in-band NALUs when SDP was missing it.
configuration.Config.Capture.IPCamera.PPSNALUs = [][]byte{nalu}
}
}
filteredAU = append(filteredAU, nalu)
}
if idrPresent && streamType == "main" {
// Ensure config has parameter sets before recordings start.
if len(configuration.Config.Capture.IPCamera.SPSNALUs) == 0 && len(g.VideoH264Forma.SPS) > 0 {
configuration.Config.Capture.IPCamera.SPSNALUs = [][]byte{g.VideoH264Forma.SPS}
log.Log.Warning("capture.golibrtsp.Start(main): fallback SPS set from keyframe")
}
if len(configuration.Config.Capture.IPCamera.PPSNALUs) == 0 && len(g.VideoH264Forma.PPS) > 0 {
configuration.Config.Capture.IPCamera.PPSNALUs = [][]byte{g.VideoH264Forma.PPS}
log.Log.Warning("capture.golibrtsp.Start(main): fallback PPS set from keyframe")
}
}
if len(filteredAU) <= 1 || (!nonIDRPresent && !idrPresent) {
return
}