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Reduce playback start time by 100x (#945)

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solidDoWant 2025-05-07 17:33:36 -05:00 committed by GitHub
parent 4a0e1aa72c
commit f6a67341b6
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1 changed files with 13 additions and 2 deletions
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15
transcoder/src/keyframes.go
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@ -14,7 +14,11 @@ import (
"github.com/zoriya/kyoo/transcoder/src/utils"
)
const KeyframeVersion = 1
const (
KeyframeVersion = 1
minParsedKeyframeTime = 5.0 // seconds
minParsedKeyframeCount = 3
)
type Keyframe struct {
Keyframes []float64
@ -192,6 +196,8 @@ func getVideoKeyframes(path string, video_idx uint32, kf *Keyframe) error {
ret := make([]float64, 0, 1000)
limit := 100
done := 0
indexNotificationComplete := false
// sometimes, videos can start at a timing greater than 0:00. We need to take that into account
// and only list keyframes that come after the start of the video (without that, our segments count
// mismatch and we can have the same segment twice on the stream).
@ -231,7 +237,8 @@ func getVideoKeyframes(path string, video_idx uint32, kf *Keyframe) error {
ret = append(ret, fpts)
if len(ret) == limit {
shouldNotifyIndexers := !indexNotificationComplete && fpts >= minParsedKeyframeTime && len(ret) >= minParsedKeyframeCount
if len(ret) == limit || shouldNotifyIndexers {
kf.add(ret)
if done == 0 {
kf.info.ready.Done()
@ -241,6 +248,10 @@ func getVideoKeyframes(path string, video_idx uint32, kf *Keyframe) error {
done += limit
// clear the array without reallocing it
ret = ret[:0]
if shouldNotifyIndexers {
indexNotificationComplete = true
}
}
}
kf.add(ret)