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query MPV astats node directly in C for efficiency

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This commit is contained in:
Drew Weymouth
2024-07-23 17:38:43 -07:00
parent 1814e2a6a3
commit 02e5c784b3
5 changed files with 73 additions and 13 deletions
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backend/player/mpv/player.go
+2 -10
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@@ -455,19 +455,11 @@ func (p *Player) GetPeaks() (float64, float64, float64, float64) {
if p.status.State != player.Playing {
return nInf, nInf, nInf, nInf
}
prop, err := p.mpv.GetProperty("af-metadata/astats", mpv.FORMAT_NODE)
lPeak, rPeak, lRMS, rRMS, err := p.getPeaks()
if err != nil {
return nInf, nInf, nInf, nInf
}
m := prop.(*mpv.Node).Data.(map[string]*mpv.Node)
if lPeakNode, ok := m["lavfi.astats.1.Peak_level"]; ok {
lPeak, _ := strconv.ParseFloat(lPeakNode.Data.(string), 64)
rPeak, _ := strconv.ParseFloat(m["lavfi.astats.2.Peak_level"].Data.(string), 64)
lRMS, _ := strconv.ParseFloat(m["lavfi.astats.1.RMS_level"].Data.(string), 64)
rRMS, _ := strconv.ParseFloat(m["lavfi.astats.2.RMS_level"].Data.(string), 64)
return lPeak, rPeak, lRMS, rRMS
}
return nInf, nInf, nInf, nInf
return lPeak, rPeak, lRMS, rRMS
}
// sets the state and invokes callbacks, if triggered