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msgconv/from-matrix: fix reading duration and converting waveform

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Fixes #757
This commit is contained in:
Tulir Asokan 2024-12-19 17:16:12 +02:00
parent c2f719e1ae
commit 8d4964138c
1 changed files with 10 additions and 6 deletions
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16
pkg/msgconv/from-matrix.go
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@ -502,25 +502,29 @@ func parseGeoURI(uri string) (lat, long float64, err error) {
return
}
func getAudioInfo(content *event.MessageEventContent) (output []byte, Duration uint32) {
func getAudioInfo(content *event.MessageEventContent) (output []byte, duration uint32) {
duration = uint32(content.Info.Duration / 1000)
audioInfo := content.MSC1767Audio
if audioInfo == nil {
return nil, uint32(content.Info.Duration / 1000)
return
}
if duration == 0 && audioInfo.Duration != 0 {
duration = uint32(audioInfo.Duration / 1000)
}
waveform := audioInfo.Waveform
if len(waveform) == 0 {
return nil, uint32(audioInfo.Duration / 1000)
return
}
maxVal := slices.Max(waveform)
output = make([]byte, len(waveform))
if maxVal < 256 {
if maxVal <= 256 {
for i, part := range waveform {
output[i] = byte(part)
output[i] = byte(min(part, 255))
}
} else {
for i, part := range waveform {
output[i] = min(byte(part/4), 255)
output[i] = byte(min(part/4, 255))
}
}
return