Brandon McGinty (deepseek)
64a3ea6c32
The auto-bitrate formula 'bandwidth/840 - 42' produces negative values for servers with bandwidth below ~35 kbps. A negative AudioDataBytes would cause the Opus encoder to be configured with zero or negative bitrate, producing invalid output. Add a floor of 10 bytes per frame (8 kbps), the minimum usable Opus bitrate for intelligible voice.
34 lines
831 B
Go
34 lines
831 B
Go
package gumbleutil // import "git.stormux.org/storm/barnard/gumble/gumbleutil"
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import (
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"time"
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"git.stormux.org/storm/barnard/gumble/gumble"
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)
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var autoBitrate = &Listener{
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Connect: func(e *gumble.ConnectEvent) {
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if e.MaximumBitrate != nil {
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const (
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safety = 5
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minBytes = 10 // minimum bytes per frame for usable Opus (8 kbps)
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)
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interval := e.Client.Config.AudioInterval
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dataBytes := (*e.MaximumBitrate / (8 * (int(time.Second/interval) + safety))) - 32 - 10
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if dataBytes < minBytes {
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dataBytes = minBytes
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}
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e.Client.Config.AudioDataBytes = dataBytes
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}
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},
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}
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// AutoBitrate is a gumble.EventListener that automatically sets the client's
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// AudioDataBytes to suitable value, based on the server's bitrate.
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var AutoBitrate gumble.EventListener
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func init() {
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AutoBitrate = autoBitrate
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}
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