owncast/config/configUtils.go

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package config
import (
"encoding/json"
"sort"
)
func findHighestQuality(qualities []StreamQuality) int {
type IndexedQuality struct {
index int
quality StreamQuality
}
if len(qualities) < 2 {
return 0
}
indexedQualities := make([]IndexedQuality, 0)
for index, quality := range qualities {
indexedQuality := IndexedQuality{index, quality}
indexedQualities = append(indexedQualities, indexedQuality)
}
sort.Slice(indexedQualities, func(a, b int) bool {
if indexedQualities[a].quality.IsVideoPassthrough && !indexedQualities[b].quality.IsVideoPassthrough {
return true
}
if !indexedQualities[a].quality.IsVideoPassthrough && indexedQualities[b].quality.IsVideoPassthrough {
return false
}
return indexedQualities[a].quality.VideoBitrate > indexedQualities[b].quality.VideoBitrate
})
return indexedQualities[0].index
}
// MarshalJSON is a custom JSON marshal function for video stream qualities
func (q *StreamQuality) MarshalJSON() ([]byte, error) {
type Alias StreamQuality
return json.Marshal(&struct {
Framerate int `json:"framerate"`
*Alias
}{
Framerate: q.GetFramerate(),
Alias: (*Alias)(q),
})
}